Aerosol-generating substrate segment, aerosol-generating substrate sheets, aerosol-generating substrate particles, aerosol-generating article and preparation method

Abstract

An aerosol-generating substrate segment (100), aerosol-generating substrate sheets, aerosol-generating substrate particles (22), an aerosol-generating article (1000) and a preparation method. The aerosol-generating substrate segment (100) comprises a sheet-like substrate (1), the aerosol-generating substrate segment (100) is configured as a wound structure formed by winding the sheet-like substrate (1), the sheet-like substrate (1) can be heated to generate an aerosol, and the sheet-like substrate (1) comprises the aerosol-generating substrate particles (22).

Description

Aerosol generation matrix segments, matrix sheets, matrix particles, products and preparation methods

[0001] Cross-references to related applications

[0002] This disclosure is based on six Chinese patent applications with application numbers 202411533420.6, 202411533402.8, 202411533563.7, 202411533398.5, 202411533666.3, and 202411533574.5, all filed on October 30, 2024, and claims priority to the aforementioned six Chinese patent applications, the entire contents of which are incorporated herein by reference. Technical Field

[0003] The embodiments disclosed herein relate to the field of aerosol generation technology, and more particularly to an aerosol generation matrix segment, matrix sheet, matrix particles, product, and preparation method. Background Technology

[0004] Aerosol generating matrix can form aerosols by ignition or by heating without combustion. In the heated but non-combustible aerosol generating matrix, the aerosol generating matrix is ​​heated by an external heat source to a level sufficient to release aerosols. The aerosol generating matrix does not burn; instead, it is loaded with a smoke-generating agent, and aerosols are released by heating the aerosol generating matrix during use.

[0005] The matrix units of the aerosol generation matrix segment are mainly in the form of flakes, filaments, and granules. In the related technologies where the matrix units are granular, the filling process for filling the matrix units has the problem of unstable suction resistance. Moreover, the vibration and other effects during the transportation and storage of granular matrix units will cause the granular matrix units in the local area of ​​the aerosol generation matrix segment to become more and more compact, resulting in greater suction resistance and a poor suction experience. Summary of the Invention

[0006] In view of this, the present disclosure aims to provide an aerosol generation matrix segment, matrix sheet, matrix particles, product, and preparation method.

[0007] The first aspect of this disclosure provides an aerosol generation matrix segment comprising a sheet matrix and aerosol generation matrix particles, wherein the aerosol generation matrix particles are disposed on at least one side of the sheet matrix, and the aerosol generation matrix segment is constructed as a wound structure formed by winding the sheet matrix, wherein the sheet matrix can be heated to generate aerosols.

[0008] A second aspect of this disclosure provides an aerosol generating matrix sheet, comprising a substrate layer and a particle layer stacked thereon, the particle layer comprising aerosol generating matrix particles, the aerosol generating matrix particles being laid on the substrate layer; the thickness of the particle layer being greater than or equal to the thickness of the substrate layer, and / or the air permeability of the particle layer being greater than the air permeability of the substrate layer, and / or the particle layer being at least partially embedded in the substrate layer.

[0009] A third aspect of this disclosure provides an aerosol generating matrix sheet, comprising a substrate layer and a matrix layer stacked together, the matrix layer being capable of being heated and atomized to generate an aerosol, wherein the matrix layer includes a cast layer and aerosol generating particles, the cast layer being constructed by casting a cast slurry, the cast layer covering at least a portion of the outer sidewall of the aerosol generating particles.

[0010] A fourth aspect of this disclosure provides an aerosol generating matrix particle, comprising: a substrate particle having a plurality of receiving pores, at least a portion of the receiving pores forming openings on the outer surface of the substrate particle; a smoke-generating medium and / or an aroma-enhancing medium disposed within the receiving pores; and a hydrophobic structure disposed on the outer side of the substrate particle and at least partially covering the openings of the receiving pores.

[0011] A fifth aspect of this disclosure provides an aerosol generating matrix particle, comprising: a substrate particle having a plurality of accommodating pores, at least a portion of the accommodating pores forming openings on the outer surface of the substrate particle; a slurry shell layer comprising a hydrophobic material, fibers, and a smoke-generating medium and / or a flavoring medium; the slurry shell layer covering the outer surface of the substrate particle, at least a portion of the smoke-generating medium and / or the flavoring medium filling the accommodating pores, and at least a portion of the hydrophobic material and the fibers remaining on the outer surface of the substrate particle forming a hydrophobic coating, the hydrophobic coating at least partially covering the openings of the accommodating pores.

[0012] The sixth aspect of this disclosure provides a method for preparing an aerosol generation matrix segment, comprising: preparing aerosol generation matrix particles and a slurry; casting the slurry to form a matrix layer; laying the aerosol generation matrix particles on the top surface of the matrix layer to form a particle layer, wherein the matrix layer and the particle layer together form a sheet-like matrix; and winding the sheet-like matrix to form an aerosol generation matrix segment.

[0013] The seventh aspect of this disclosure provides a method for preparing an aerosol generation matrix segment, comprising: disposing a casting slurry and aerosol generation matrix particles on a substrate layer; drying the casting slurry to form a matrix layer on the substrate layer, wherein the matrix layer and the substrate layer together constitute a sheet matrix; and winding the sheet matrix to obtain the aerosol generation matrix segment.

[0014] The eighth aspect of this disclosure provides a method for preparing aerosol generating matrix particles, the method comprising: preparing substrate particles having a plurality of accommodating pores, at least a portion of the accommodating pores forming openings on the outer surface of the substrate particles; introducing a smoke-generating medium and / or an aroma-enhancing medium into the accommodating pores to obtain an adsorbent; and disposing a hydrophobic structure on the outside of the adsorbent, such that the hydrophobic structure at least partially covers the openings of the accommodating pores, thereby obtaining aerosol generating matrix particles.

[0015] The ninth aspect of this disclosure provides a method for preparing aerosol generating matrix particles, the method comprising: preparing substrate particles having a plurality of accommodating pores, at least a portion of the accommodating pores forming openings on the outer surface of the substrate particles; preparing a slurry comprising a hydrophobic material, fibers, and a smoke-generating medium and / or a flavoring medium; coating the slurry onto the outer surface of the substrate particles, such that at least a portion of the smoke-generating medium and / or the flavoring medium in the slurry enters the accommodating pores, and at least a portion of the hydrophobic material and the fibers remain on the outer surface of the substrate particles to form a hydrophobic coating, the hydrophobic coating at least partially covering the openings of the accommodating pores, thereby obtaining aerosol generating matrix particles. Attached Figure Description

[0016] Figure 1 is a schematic diagram of the structure of the sheet-like matrix of the first embodiment of the first embodiment of the present disclosure;

[0017] Figure 2 is a cross-sectional view along the AA direction in Figure 1;

[0018] Figure 3 is a cross-sectional view of the sheet-like matrix of the second embodiment of the first embodiment of this disclosure, and the cross-sectional direction is the same as that of Figure 2.

[0019] Figure 4 is a cross-sectional view of the sheet-like matrix of the third embodiment of the first embodiment of this disclosure, with the cross-sectional direction being the same as that of Figure 2.

[0020] Figure 5 is a cross-sectional view of the sheet-like matrix of the fourth embodiment of the first embodiment of this disclosure, with the cross-sectional direction being the same as that of Figure 2.

[0021] Figure 6 is a cross-sectional view of the sheet-like matrix of the fifth embodiment of the first embodiment of this disclosure, with the cross-sectional direction being the same as that of Figure 2.

[0022] Figure 7 is a cross-sectional view of the sheet-like matrix of the sixth embodiment of the first embodiment of this disclosure, with the cross-sectional direction being the same as that of Figure 2.

[0023] Figure 8 is a cross-sectional view of the sheet-like matrix of the seventh embodiment of the first embodiment of this disclosure, with the cross-sectional direction being the same as that of Figure 2.

[0024] Figure 9 is a cross-sectional view of the sheet-like matrix of the eighth embodiment of the first embodiment of this disclosure, with the cross-sectional direction being the same as that of Figure 2.

[0025] Figure 10 is a schematic diagram of the structure of the aerosol generation matrix segment of the first embodiment of the first embodiment of this disclosure;

[0026] Figure 11 is a schematic diagram of the structure of the aerosol generation matrix segment in the second embodiment of the first embodiment of this disclosure;

[0027] Figure 12 is a schematic diagram of the structure of the aerosol generation matrix segment in the third embodiment of the first embodiment of this disclosure;

[0028] Figure 13 is a schematic diagram of the structure of the aerosol generation matrix segment in the fourth embodiment of the first embodiment of this disclosure;

[0029] Figure 14 is a schematic diagram of the structure of the aerosol generation matrix segment in the fifth embodiment of the first embodiment of this disclosure;

[0030] Figure 15 is a schematic diagram of the structure of the aerosol generation matrix segment in the sixth embodiment of the first embodiment of this disclosure;

[0031] Figure 16 is a schematic diagram of the structure of the aerosol generation matrix segment in the seventh embodiment of the first embodiment of this disclosure;

[0032] Figure 17 is a schematic diagram of the structure of an aerosol-generated article according to an embodiment of the present disclosure;

[0033] Figure 18 is a schematic cross-sectional view of the aerosol-generated matrix particles according to an embodiment of the first embodiment of this disclosure.

[0034] Figure 19 is a schematic cross-sectional view of the aerosol-generated matrix particles according to another embodiment of the first embodiment of this disclosure.

[0035] Figure 20 is a cross-sectional schematic diagram of the sheet-like matrix of the first embodiment of the second embodiment of this disclosure;

[0036] Figure 21 is a cross-sectional schematic diagram of the sheet-like matrix of the second embodiment of the present disclosure;

[0037] Figure 22 is a cross-sectional schematic diagram of the sheet-like matrix of the third embodiment of the second embodiment of this disclosure;

[0038] Figure 23 is a schematic diagram of the arrangement of aerosol generating particles on a substrate layer according to an embodiment of the second embodiment of the present disclosure.

[0039] Figure 24 is a flowchart of the preparation method of the aerosol generation matrix segment according to the eighth embodiment of this disclosure;

[0040] Figure 25 is a flowchart of the preparation method of the aerosol generation matrix segment according to the ninth embodiment of this disclosure;

[0041] Figure 26 is a flowchart of the preparation method of aerosol-generated matrix particles according to the tenth embodiment of this disclosure;

[0042] Figure 27 is a flowchart of the method for preparing aerosol-generating matrix particles according to the eleventh embodiment of this disclosure.

[0043] Explanation of reference numerals in the attached figures: 100, aerosol generating matrix section; 1, sheet-like matrix; 10, base layer; 10a, cylindrical space; 20, particle layer; 21, sub-particle layer; 22, aerosol generating matrix particles; 221, substrate particles; 2211, receiving hole; 2212, opening; 222, smoke generating medium; 223, hydrophobic structure; 2231, hydrophobic powder; 2232, hydrophobic coating; 224, aroma-enhancing medium; 30, coating layer; 40, coating layer; 200, filtration section; 300, cooling section; 400, pre-plug section; 500, sealing element; 600, outer wrapping layer; 1000, aerosol generating product; 700, Aerosol generation matrix segment; 710, Sheet matrix; 711, Matrix layer; 7111, Cast layer; 7112, Particle layer; 7113, Aerosol generation particles; 712, Base layer. Detailed Implementation

[0044] To make the objectives, technical solutions, and advantages of this disclosure clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this disclosure.

[0045] The specific technical features described in the specific embodiments can be combined in any suitable manner without contradiction. For example, different combinations of specific technical features can form different embodiments and technical solutions. To avoid unnecessary repetition, the various possible combinations of the specific technical features in this disclosure will not be described separately.

[0046] In the following description, the terms "first," "second," etc., are used merely to distinguish different objects and do not indicate that the objects have the sameness or relationship. It should be understood that the directional descriptions "above," "below," "outside," and "inside" refer to the orientation under normal use conditions, while "left" and "right" refer to the left and right directions shown in the corresponding diagrams, which may or may not be the left and right directions under normal use conditions.

[0047] It should be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. "A plurality of" means two or more.

[0048] In the description of the embodiments of this disclosure, the technical terms "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "circumferential," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this disclosure and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed, operated, or used in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this disclosure.

[0049] The present disclosure will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0050] Please refer to Figures 10 to 16. This disclosure provides an aerosol generation matrix segment 100.

[0051] It should be noted that the aerosol generating matrix segment 100 of this disclosure can be used for suction by ignition or by heating without combustion. In this disclosure, the aerosol generating matrix segment 100 is described as an example of suction using a heating without combustion method.

[0052] Please refer to Figures 1 to 9. This disclosure provides an aerosol-generated matrix sheet.

[0053] It should be noted that the aerosol generating matrix sheet of this disclosure can be used for suction by ignition or by heating without combustion. In this disclosure, the aerosol generating matrix sheet being used for suction by heating without combustion is described as an example.

[0054] Please refer to Figure 17. This disclosure also provides an aerosol generating article, which includes a functional segment, an outer coating layer (not shown), and an aerosol generating matrix segment 100 according to any embodiment of this disclosure.

[0055] The aerosol generation matrix segment 100 extends along a first direction. Exemplarily, the first direction is the direction shown by L in FIG17.

[0056] It should be noted that the aerosol-generating article extends in the same direction as the aerosol-generating matrix section 100. That is, the aerosol-generating article also extends along the first direction.

[0057] A functional section is located at one end of the aerosol generating matrix section 100 along a first direction. The functional section includes a cooling section 300 and a filtration section 200, with the cooling section 300 located between the filtration section 200 and the aerosol generating matrix section 100. An outer wrapping layer is wrapped around the outer periphery of the functional section and the aerosol generating matrix section 100.

[0058] The aerosol generating product is used in conjunction with an aerosol generating device having a heating component. Specifically, the heating component heats and atomizes the aerosol generating matrix section 100 to generate aerosol, and the user draws the filtered aerosol through the filtration section 200.

[0059] There are various heating methods for the heating components. For example, heating methods include center heating and peripheral heating. Center heating refers to the heating component being inserted into the aerosol generating matrix section 100 to bake and heat the aerosol generating matrix section 100 from the inside out. Peripheral heating refers to the heating component being positioned around the aerosol generating product to bake and heat the aerosol generating matrix section 100 from the outside in. These heating methods can specifically include resistance heating, electromagnetic induction heating, infrared heating, microwave heating, laser heating, air heating, electric field heating, carbon source heating, plasma heating, etc., and are not specifically limited here.

[0060] The heating component heats the aerosol generating matrix section 100, causing it to release aerosols. The user inhales the aerosol in batches; that is, the user inhales one breath of aerosol, stops, and then inhales the next breath, thus inhaling intermittently. The initial inhalation period refers to the initial use of the aerosol generating matrix section 100, with the first few inhalations corresponding to this initial period, such as inhalations 1-5. The later inhalation period refers to the period when the aerosol generating matrix section 100 is close to complete aerosol release, with the last few inhalations corresponding to this later period, such as the last 1-5 inhalations. The initial and later inhalation periods respectively refer to the early and late stages of the aerosol generating matrix section 100's lifespan. The middle inhalation period refers to the inhalation time between the initial and later inhalation periods.

[0061] The cooling section 300 is located between the filtration section 200 and the aerosol generation matrix section 100 to cool the aerosol before the filtration section 200 filters it, thereby reducing the temperature of the aerosol and alleviating the "burning" sensation when the user inhales the aerosol.

[0062] It should be noted that aerosol-generating products rely on the aerosol-generating matrix section 100 to generate aerosols. The functional section generally does not generate aerosols, but some aerosol-generating products may add flavoring substances such as popping beads to the functional section.

[0063] The material of the outer wrapping layer is not limited, for example, including but not limited to one or more combinations of materials such as fiber paper, metal foil, infrared radiation layer, metal foil composite fiber paper, polyethylene composite fiber paper, PE, PBAT, etc.

[0064] The outer wrapping layer can be in the form of a hollow tube. The aerosol generating matrix segment 100 and the functional segment can be arranged sequentially in the hollow tube-shaped outer wrapping layer. The outer wrapping layer can also be a splicing paper. The aerosol generating matrix segment 100 and the functional segment are combined into an integrated structure through the splicing paper.

[0065] The first direction is the arrangement direction of the aerosol generating matrix section 100, the cooling section 300 and the filtration section 200. The aerosol generating product is inserted into the aerosol generating device along the first direction, and the aerosol generating product is also taken out of the aerosol generating device along the first direction. The length of the aerosol generating matrix section 100 along the first direction can be longer, shorter or the same as the length in other directions.

[0066] For example, when the outer contour of the aerosol generating matrix segment 100 is cylindrical, the first direction is the axial direction of the aerosol generating matrix segment 100. It should be noted that the axial length of the aerosol generating matrix segment 100 can be less than its diameter.

[0067] For example, when the aerosol generating matrix section 100 has a cuboid shape, the first direction is still the direction defined above, that is, the arrangement direction of the aerosol generating matrix section 100, the cooling section 300 and the filtration section 200, or the direction in which the aerosol generating product is placed or removed on the aerosol generating device. The first direction of the aerosol generating matrix section 100 can be any of the length, width and height of the cuboid.

[0068] In related technologies, the matrix units of the aerosol generation matrix segment are mainly in the form of flakes, filaments, and granules. In related technologies where the matrix units are granular, the matrix units are filled through a filling process, which has the problem of unstable draw resistance. Furthermore, the vibration and other effects during the transportation and storage of granular matrix units can cause the granular matrix units in local areas of the aerosol generation matrix segment to become increasingly compact, resulting in greater draw resistance and lower uniformity of smoke volume, leading to a poor inhalation experience.

[0069] First Implementation Method

[0070] The first embodiment of this disclosure provides an aerosol generation matrix segment 100, which includes a sheet matrix 1 and aerosol generation matrix particles 22. At least one side of the sheet matrix 1 is provided with aerosol generation matrix particles 22. The aerosol generation matrix segment 100 is constructed as a wound structure formed by winding the sheet matrix 1. The sheet matrix 1 can be heated to generate aerosols.

[0071] Here, the sheet-like matrix 1 is the aerosol generation matrix sheet mentioned above.

[0072] Please refer to Figures 1 to 9. In some embodiments, the sheet-like matrix 1 includes a base layer 10 and a particle layer 20 stacked together. At least some aerosol generating matrix particles 22 are laid on the base layer 10 to form the particle layer 20. The sheet-like matrix with aerosol generating matrix particles 22 distributed on its surface is wound to form a spiral aerosol generating matrix segment 100. That is to say, the aerosol generating matrix segment 100 is not a randomly filled, freely movable aerosol generating matrix particles 22 or other materials. The relative positions between the aerosol generating matrix particles 22 are basically fixed, the airflow channel is relatively stable and reliable, the amount of smoke felt during inhalation is large, and a stable airway can be formed by adjusting the particle size and distribution density of the aerosol generating matrix particles 22, thereby improving the stability of the suction resistance.

[0073] Here, at least some of the aerosol generating matrix particles 22 are laid on the base layer 10, which can control the distribution of the aerosol generating matrix particles 22. This helps to reduce displacement caused by factors such as vibration during transportation, storage or use, thereby further improving the stability of the suction resistance.

[0074] It should be noted that the aerosol generating matrix particle 22 in this embodiment can be any of the aerosol generating matrix particles 22 described below, or it can be a combination of different aerosol generating matrix particles 22.

[0075] The ability of the sheet-like matrix 1 to be heated to generate aerosols means that either the aerosol-generating matrix particles 22 can be heated to generate aerosols, or both the base layer 10 and the aerosol-generating matrix particles 22 can be heated to generate aerosols.

[0076] The aerosol generating matrix particles 22 can be laid on the surface of the substrate layer 10, or a portion of the structure of the aerosol generating matrix particles 22 can be embedded in the substrate layer 10.

[0077] The aerosol generating matrix segment 100 of this embodiment is configured as a wound structure formed by winding a sheet matrix 1. The sheet matrix 1 includes a base layer 10 and a particle layer 20 stacked together. The particle layer 20 is formed by laying aerosol generating matrix particles 22 on the base layer 10. The aerosol generating matrix particles 22 adhere to the base layer 10. By adjusting the particle size and distribution density of the aerosol generating matrix particles 22, a stable air passage can be formed, thereby improving the stability of the suction resistance. Furthermore, after the aerosol generating matrix particles 22 are laid on the base layer 10, it is beneficial to reduce the displacement caused by vibration and other factors during transportation, storage or use, thereby further improving the stability of the suction resistance.

[0078] In some embodiments, referring to FIG9, the sheet matrix 1 further includes a covering layer 30, wherein at least one of the granular layers 20 is provided with the covering layer 30 on the side away from the base layer 10, and the covering layer 30 includes non-woven fabric and / or metal foil.

[0079] When the particle layer 20 is multi-layered, a coating layer 30 may be provided on the side of one particle layer 20 away from the base layer 10, or a coating layer 30 may be provided on the side of the two outermost particle layers 20 away from the base layer 10.

[0080] In this embodiment, by providing a coating layer 30 on the surface of the particle layer 20, it is further beneficial to improve the problem of aerosol generation matrix particles 22 falling off the particle layer 20. In addition, during the winding process of the sheet matrix 1, the coating layer 30 can also provide a certain support, thereby improving the roundness of the aerosol generation matrix segment 100 and the production efficiency.

[0081] The specific type of the covering layer 30 is not limited here. Exemplarily, the covering layer 30 includes nonwoven fabric and / or metal foil. That is, the covering layer 30 can be nonwoven fabric, metal foil, or both.

[0082] The specific type of metal foil is not limited here; for example, it could be aluminum foil.

[0083] In some embodiments, the covering layer 30 includes a metal foil. The metal foil facilitates heat transfer, thereby improving atomization efficiency and rapid smoke extraction, and thus enhancing the vaping experience.

[0084] For example, the thickness of the metal foil is 0.01mm-0.015mm.

[0085] In some embodiments, the covering layer 30 comprises a nonwoven fabric. The nonwoven fabric can carry fragrance and increase breathability; in addition, the nonwoven fabric also has a cushioning and elastic effect, which is beneficial to the cooperation between the heating component and the aerosol generating matrix segment 100.

[0086] For example, the weight of the nonwoven fabric is 12g-20g.

[0087] Specifically, the nonwoven fabric is pre-treated under a closed system and a positive pressure of 0.1MPa-0.2MPa to absorb 0.5-1.5 times its own weight in fragrance, and the covering layer 30 is fixed to the base layer 10 with quick-drying tobacco adhesive or degreased cotton thread.

[0088] In some embodiments, the covering layer 30 includes a cotton layer.

[0089] It should be noted that there are several specific types of basal layer 10.

[0090] In some embodiments, the base layer 10 includes a substrate layer, which includes plant fiber fabric, nonwoven fabric and / or metal foil.

[0091] In other words, the substrate layer can be non-woven fabric, plant fiber fabric, or metal foil, or it can include any two of plant fiber fabric, non-woven fabric, and metal foil at the same time.

[0092] Here, the metal foil not only provides support but also facilitates heat transfer, thereby improving atomization efficiency and rapid smoke output, and ultimately enhancing the vaping experience.

[0093] Plant fiber fabrics and non-woven fabrics can carry fragrance and increase breathability; in addition, plant fiber fabrics and non-woven fabrics also have the functions of cushioning and elasticity, which is beneficial to the cooperation between the heating component and the aerosol generation matrix section 100.

[0094] In other embodiments, the substrate 10 includes a matrix layer that can be heated to generate an aerosol.

[0095] It should be noted that there are various ways to form the matrix layer. For example, the matrix layer can be constructed by casting a matrix slurry, coating or spraying a matrix slurry, or impregnating a matrix slurry.

[0096] Here, both the matrix layer and the particle layer 20 can be heated to generate aerosols, which is conducive to the rapid explosion of smoke and a large amount of smoke. Furthermore, the aerosols generated by the matrix layer and the particle layer 20 can mix and interact with each other, which can increase the comfort of the aerosols and improve the inhalation quality. They can also complement each other in the amount of aerosols generated during the heating process of the aerosol generation matrix section, resulting in better consistency of smoke volume.

[0097] In related technologies where the matrix unit is granular, the matrix unit is filled using a filling process. However, the filling process suffers from low production efficiency and unstable suction resistance.

[0098] This disclosure primarily utilizes a casting process, with the matrix layer structure formed by casting, coating, spraying, or impregnation of the matrix slurry. This method offers high production efficiency. The aerosol-generated matrix particles 22 adhere to the matrix layer, and sufficient air channels can be formed by adjusting the particle size distribution of the aerosol-generated matrix particles 22 and the density of the adhered fabric. Furthermore, once the aerosol-generated matrix particles 22 are fixed, their relative position changes are minimal, which helps reduce displacement caused by factors such as vibration, thereby improving the stability of the suction resistance.

[0099] In some embodiments, as shown in Figures 2 and 3, the air permeability of the particle layer 20 is greater than that of the base layer 10.

[0100] The air permeability of the base layer 10 is less than that of the particulate layer 20, which is beneficial to improving the thermal conductivity of the base layer 10 and increasing the rate at which the particulate layer 20 generates smoke.

[0101] It is understandable that there are certain gaps between adjacent aerosol generating matrix particles 22, which is conducive to airflow. Thus, by setting the air permeability of the particle layer 20 to be greater than that of the base layer 10, a stable air channel can be formed inside the particle layer 20, which is beneficial to improving the stability of the suction resistance and can also increase the amount of smoke, that is, increase the amount of aerosol.

[0102] In some embodiments, as shown in Figures 2 and 3, the thickness of the particle layer 20 is greater than or equal to the thickness of the base layer 10.

[0103] Understandably, by making the thickness of the granular layer 20 greater than or equal to the thickness of the base layer 10, it is beneficial to increase the effective material loading of the sheet matrix 1, while also improving the air permeability of the sheet matrix 1. This allows for the formation of stable air channels within the sheet matrix 1, thereby improving the stability of the suction resistance. Furthermore, it facilitates heat transfer through the base layer 10 to the granular layer 20. Additionally, with the granular layer 20's thickness greater than or equal to the base layer 10's thickness, the aerosol generation rate of the granular layer 20 is higher than that of the base layer 10, and it can maintain a high smoke volume for a longer period, reducing attenuation.

[0104] In some embodiments, as shown in Figures 2 to 3, at least a portion of the aerosol-generated matrix particles 22 are embedded in the substrate layer 10.

[0105] The phrase "at least partially embedded in the substrate layer 10" means that a portion of the aerosol generating matrix particle 22 is embedded within the substrate layer 10, while another portion is located outside the substrate layer 10.

[0106] For example, the embedding depth of the aerosol generating matrix particles 22 is less than or equal to half the total thickness of the aerosol generating matrix particles 22, or the embedding depth of the aerosol generating matrix particles 22 is less than or equal to half the total thickness of the particle layer 20.

[0107] This further enhances the connection strength between the aerosol generating matrix particles 22 and the base layer 10, and further reduces displacement caused by vibration and other factors during transportation, storage, or use, thereby further improving the stability of the suction resistance. Additionally, it reduces the possibility of particle detachment during winding or drying. Excessive embedding depth may adversely affect the rate of smoke generation and the amount of smoke produced.

[0108] In one embodiment, at least some of the adjacent aerosol generating matrix particles 22 are bonded together.

[0109] It is understandable that the fragrances, smoke generators or other substances adsorbed by the aerosol generating matrix particles 22 will have some residue on the surface of the aerosol generating matrix particles 22. The substances remaining on the surface of the aerosol generating matrix particles 22 have a certain degree of viscosity, which can make at least some of the adjacent aerosol generating matrix particles 22 stick together. This further helps to reduce the displacement of the aerosol generating matrix particles 22 due to vibration and other factors during transportation, storage or use, thereby further improving the stability of the adsorption resistance.

[0110] For example, the aerosol-generating matrix particles 22 of the particle layer 20, which are far from the substrate layer 10, are bonded together with each other, which helps to improve the stability of the particle layer 20.

[0111] In some embodiments, as shown in Figures 2 and 3, the thickness of the particle layer 20 is 0.8 mm to 3.5 mm.

[0112] The thickness of the particle layer 20 can be any one of 0.8mm, 0.9mm, 1mm, 1.3mm, 1.5mm, 1.9mm, 2mm, 2.1mm, 2.2mm, 2.3mm, 2.4mm, 2.5mm, 2.7mm, 2.9mm, 3mm, 3.1mm, 3.2mm, 3.3mm, 3.4mm, or 3.5mm, or a value between any two of them.

[0113] In this embodiment, by setting the thickness of the particle layer 20 to 0.8mm-3.5mm, the aerosol generation matrix section 100 can have appropriate suction resistance while also generating sufficient smoke.

[0114] In some embodiments, the base layer 10 further includes a substrate layer, on which the substrate layer is formed, the substrate layer including plant fiber fabric, non-woven fabric and / or metal foil.

[0115] Exemplarily, the matrix layer can be constructed by casting a matrix slurry onto a substrate layer, or by coating or spraying a matrix slurry onto a substrate layer, or by dip coating a matrix slurry, resulting in high production efficiency. Alternatively, the matrix layer can be pre-formed and then placed onto the substrate layer, for example, by pressure forming. In some embodiments, referring to Figures 2 and 3, the sheet-like matrix includes a coating layer 40, which is constructed by coating a matrix slurry onto the surface of the granular layer 20. The coating layer 40 can be heated to generate an aerosol.

[0116] In this embodiment, by providing a coating layer 40 on the surface of the particle layer 20, it is further beneficial to improve the problem of aerosol generation matrix particles 22 falling off the particle layer 20. In addition, the coating layer 40 is constructed by coating the surface of the particle layer 20 with matrix slurry. The coating layer 40 can be heated to generate aerosol, which is beneficial to increase the amount of smoke in large-aperture inhalation, making the smoke burst fast, the amount of smoke large, and the consistency good throughout the inhalation process.

[0117] For example, the thickness of the coating layer 40 is 0.2mm-0.4mm. After the matrix slurry is coated on the surface of the particle layer 20, the coating layer 40 is dried in hot air at 60℃-80℃ for 30min-60min to obtain the coating layer 40.

[0118] In some embodiments, the matrix slurry includes a base material, a smoke generator, broadleaf fibers, a flavoring, and nicotine and / or a cooling agent.

[0119] The broad-leaved fibers here include, but are not limited to, poplar, Eucalyptus grandis, and mulberry branches.

[0120] It is understandable that broadleaf plant fibers are natural plant materials, which can reduce the preparation cost of aerosol generation matrix particles 22 and reduce the possibility that aerosol generation matrix particles 22 will produce unpleasant odors and / or harmful gases when heated.

[0121] The base material includes plant materials, fillers, and adhesives.

[0122] For example, plant-based raw materials include one or more of the following: wheat flour, rice flour, cassava flour, buckwheat flour, oat flour, sweet potato flour, ophiopogon japonicus powder, kudzu root powder, carrot powder, honeysuckle powder, dandelion powder, loofah sponge powder, etc.

[0123] For example, the filler includes one or more of calcium carbonate, calcium chloride, magnesium chloride, calcium phosphate, etc.

[0124] For example, the adhesive includes one or more of carrageenan, konjac gum, locust bean gum, guar gum, xanthan gum, sodium alginate, agar, etc.

[0125] In some embodiments, the smoke-generating agent is glycerin, and by weight, the proportions of each component are: 38-47 parts base material, 36-45 parts glycerin, 0.1-0.4 parts broadleaf fiber, 6-10 parts flavoring, and 1.5-2.5 parts nicotine and / or cooling agent.

[0126] In this embodiment, the matrix slurry with the above-described ratio allows glycerin and fragrances to be mixed in as much as possible, thereby increasing the loading of effective substances in the matrix layer. It should be noted that any other suitable ratio can also be used to prepare the matrix slurry.

[0127] For example, the substrate layer can be heated by a three-stage hot air process, with the temperatures of the three stages being 70-75℃, 75-80℃, and 90-95℃ respectively. Before the substrate layer enters the heating stage, aerosol generating substrate particles 22 are laid on the surface of the substrate layer to adhere to it. Depending on the requirements of different smoke volume, number of continuous puffs, winding method, and other indicators, the distribution of aerosol generating substrate particles 22 can be uniform, irregular, or intermittent strip distribution.

[0128] It should be noted that the number of layers of the sheet matrix 1 is not limited here.

[0129] In some embodiments, as shown in Figures 10 to 11 and Figures 15 to 16, the sheet substrate 1 is wound in a single layer, that is, the sheet substrate 1 is wound into one loop.

[0130] The sheet-like matrix 1 has a single layer, meaning that there is no overlapping area of ​​the sheet-like matrix 1 along the radial direction of the aerosol generation matrix segment 100. Of course, there can be an overlapping area at the connection between the first and last ends of the sheet-like matrix 1 to improve the reliability of the connection between the first and last ends.

[0131] By setting the number of winding layers of the sheet matrix 1 to a single layer, it is beneficial to improve the heating efficiency and the roundness of the aerosol generation matrix segment, thereby improving the aerosol generation efficiency and the uniformity of the generated aerosols.

[0132] For example, in embodiments where the number of winding layers of the sheet matrix 1 is a single layer, the thickness of the base layer 10 or the particle layer 20 can be increased, and the particle size of the aerosol generating matrix particles 22 can be enlarged. Heating efficiency can be improved by peripheral heating or central heating. Furthermore, stable air channels can be formed inside the sheet matrix 1, thereby improving the stability of the suction resistance.

[0133] In some embodiments, please refer to FIG11. The number of winding layers of the sheet matrix 1 is a single layer, that is, the sheet matrix 1 is wound once, the base layer 10 is wound to form a cylindrical space, and the aerosol generating matrix particles 22 are wrapped in the cylindrical space.

[0134] Here, after the sheet matrix 1 is rolled up toward the surface of the particle layer 20, that is, after the aerosol generating matrix particles 22 of the sheet matrix 1 are rolled inward, the base layer 10 is rolled up to form a cylindrical space, so that the aerosol generating matrix particles 22 are wrapped in the cylindrical space, that is, the interior of the aerosol generating matrix segment 100 is the aerosol generating matrix particles 22, which further facilitates the formation of air channels in the center of the aerosol generating matrix segment 100 and increases air permeability.

[0135] In some embodiments, the sheet matrix 1 is wound into a circle, the base layer 10 is wound into a cylindrical space, the cylindrical space is filled with aerosol generating matrix particles 22, and the outer surface of the base layer 10 is covered with aerosol generating matrix particles 22.

[0136] Here, by adjusting the particle size and distribution density of the aerosol generating matrix particles 22, a stable airflow can be formed, thereby improving the stability of the draw resistance. Furthermore, after the aerosol generating matrix particles 22 are laid on the base layer 10, it helps to reduce displacement caused by vibration and other factors during transportation, storage, or use, thus further improving the stability of the draw resistance. In addition, by providing particle layers 20 both inside the cylindrical space of the base layer 10 and on its outer surface, it is beneficial to increase the loading capacity of the aerosol generating matrix particles 22, thereby increasing the amount of smoke produced.

[0137] In some embodiments, the sheet matrix 1 has more than one winding layer, that is, the sheet matrix 1 is wound more than one turn, and the aerosol-generated matrix particles 22 fill the winding space between adjacent base layers 10 and the innermost base layer 10.

[0138] Here, by winding the sheet-like matrix 1 in multiple layers, some aerosol-generating matrix particles 22 can be filled between adjacent base layers 10. This helps to further improve the problem of aerosol-generating matrix particles 22 falling off. The aerosol-generating matrix particles 22 in the winding space of the innermost base layer 10 help to form air channels in the gaps between the aerosol-generating matrix particles 22 in the winding space, increasing air permeability. However, controlling the roundness of the aerosol-generating matrix segment 100 is relatively difficult.

[0139] In some embodiments, the aerosol generating matrix segment 100 has an insertion space at its center, or the center of the aerosol generating matrix segment 100 is not completely filled by the aerosol generating matrix particles 22.

[0140] In this way, on the one hand, it is beneficial to increase air permeability, and on the other hand, it facilitates the insertion of the central heating element into the insertion space at the center of the aerosol generating matrix section 100, or into the area at the center of the aerosol generating matrix section 100 that is not completely filled by the aerosol generating matrix particles 22. This is beneficial to improve assembly efficiency and facilitates the insertion of the central heating element. The above structure is advantageous for situations where the central heating element is heated, not only facilitating the insertion of the heating element, but also increasing the burst of smoke volume in the first puff.

[0141] In some embodiments, the sheet matrix 1 has a single layer of winding, the particle layer 20 is wound to form a cylindrical space, and the base layer 10 is wrapped inside the cylindrical space.

[0142] In this way, a peripheral heating method can be used, allowing the heating element to directly contact the particle layer 20. This enables the rapid generation of a large amount of smoke in the initial stage of suction, resulting in sufficient aerosol generation in the aerosol generation matrix section 100. Furthermore, it facilitates the formation of air channels in the center of the aerosol generation matrix section 100, increasing air permeability.

[0143] In some embodiments, the sheet matrix 1 has more than one winding layer, and the base layer 10 is sandwiched between adjacent particle layers 20 and within the winding space of the innermost particle layer 20.

[0144] Here, the base layer 10 can be a non-woven fabric or plant fiber layer, which helps increase breathability. It can also be a metal foil, which is beneficial for heat transfer when using a central heating method.

[0145] Here, by winding multiple layers, the sheet-like matrix 1 allows some aerosol generation matrix particles 22 to fill between adjacent base layers 10, which helps to further improve the problem of aerosol generation matrix particles 22 falling off.

[0146] In some embodiments, the density of the aerosol-generating matrix particles 22 enclosed in the cylindrical space is less than the density of the base layer 10. Alternatively, the density of the particle layer 20 may be less than the density of the base layer 10.

[0147] In this embodiment, by setting the density of the aerosol generating matrix particles 22 enclosed in the cylindrical space to be less than the density of the base layer 10, especially when heated by the central heating element, the aerosol generating matrix particles 22 can generate a large amount of smoke more quickly and simultaneously generate sufficient smoke while appropriately reducing the heat capacity of the base layer 10. Furthermore, in embodiments where the base layer 10 includes a matrix layer, the density of the matrix layer can be made appropriate, thereby enabling the matrix layer to generate a large amount of smoke more quickly while also ensuring sufficient smoke production.

[0148] In some embodiments, the air permeability of the aerosol generating matrix particles 22 enclosed in the cylindrical space is greater than that of the base layer 10, or the air permeability of the particle layer 20 is greater than that of the base layer 10.

[0149] The permeability of the base layer 10 is less than that of the aerosol generation matrix particles 22, which is beneficial to improving the aerosol burst speed and smoke volume of the particle layer 20.

[0150] Here, by setting the permeability of the aerosol generating matrix particles 22 enclosed in the cylindrical space to be greater than that of the base layer 10, it is beneficial to the rapid explosion of smoke.

[0151] In some embodiments, the specific heat capacity of the aerosol generating matrix particles 22 enclosed in the cylindrical space is less than the specific heat capacity of the substrate layer 10.

[0152] In this embodiment, the specific heat capacity of the aerosol generating matrix particles 22 enclosed in the cylindrical space is set to be lower than that of the base layer 10. The lower specific heat capacity is beneficial for the rapid explosion of smoke.

[0153] In some embodiments, the distribution density of aerosol generating matrix particles 22 in the particle layer 20 gradually decreases radially inward along the aerosol generating matrix segment 100.

[0154] In other words, the density of the aerosol-generating matrix particles 22 in the particle layer 20 gradually decreases, which further helps to increase air permeability.

[0155] In other embodiments, referring to FIG10, the sheet substrate 1 is wound toward the surface of the base layer 10, and the number of winding layers of the sheet substrate 1 is a single layer.

[0156] Here, after the sheet-like matrix 1 is rolled up toward the surface of the base layer 10, that is, after the aerosol generating matrix particles 22 of the sheet-like matrix 1 are rolled outward, the center of the aerosol generating matrix segment 100 is a non-woven fabric or plant fiber layer, which is beneficial to increase air permeability, etc., and a small channel can also be formed in the center of the aerosol generating matrix segment 100 to facilitate the insertion of the central heating element.

[0157] In some embodiments, as shown in Figures 12 to 14, the sheet-like matrix 1 has multiple winding layers.

[0158] In this embodiment of the disclosure, "multi-layer" refers to two or more layers.

[0159] Here, the number of winding layers of the sheet-like matrix 1 can be, for example, 2, 3, 4, 5, 6, 7, 8 or more.

[0160] For example, in an embodiment where the number of winding layers of the sheet matrix 1 is multi-layered, the thickness of the base layer 10 can be reduced, and the particle size of the aerosol-generating matrix particles 22 can be reduced, which can be applied to different heating methods.

[0161] In this embodiment, by setting the number of winding layers of the sheet matrix 1 to multiple layers, a stable air passage can be formed between adjacent layers, which is beneficial to improving the stability of the suction resistance.

[0162] In some embodiments, the thickness of the matrix layer is 0.2 mm to 1.5 mm.

[0163] The thickness of the matrix layer can be any one of 0.2mm, 0.5mm, 0.6mm, 0.7mm, 0.8mm, 0.9mm, 1mm, 1.1mm, 1.2mm, 1.3mm, 1.4mm, or 1.5mm, or any combination thereof.

[0164] Specifically, for the ring-shaped aerosol generation matrix section, the thickness of the matrix layer is 0.2mm-1.5mm, and the particle size of the aerosol generation matrix particles 22 is more than 60% 1.5mm-3mm. This can greatly ensure the aerosol generation rate and smoke volume. The thickness of the particle layer 20 is greater than the thickness of the base layer 10 or the matrix layer; preferably, the thickness of the particle layer 20 is 1.5 times or more the thickness of the base layer 10 or the matrix layer.

[0165] Here, the thickness of the matrix layer can be determined based on the number of winding layers of the sheet matrix 1. As the number of winding layers increases, the thickness of the matrix layer decreases.

[0166] In this embodiment, by setting the thickness of the matrix layer to 0.2mm-1.5mm, the aerosol generation matrix section 100 can have appropriate absorption resistance while also generating sufficient smoke.

[0167] In some embodiments, the density of the matrix layer is 0.6 g / cm³. 3 -0.9g / cm 3 .

[0168] The density of the matrix layer can be 0.6 g / cm³. 3 0.65g / cm 3 0.68g / cm 3 0.7g / cm 3 0.72g / cm 3 0.75g / cm 3 0.78g / cm 3 0.8g / cm 3 0.85g / cm 3 0.88g / cm3 0.9g / cm 3 The point value of any one of them or the point value between any two.

[0169] In this embodiment, the density of the matrix layer is set to 0.6 g / cm³. 3 -0.9g / cm 3 This allows the matrix layer to have an appropriate density, enabling it to generate a large amount of smoke quickly and efficiently, while also ensuring that the matrix layer produces a sufficient amount of smoke.

[0170] In some embodiments, the density of the substrate layer is 0.5 g / cm³. 3 -1g / cm 3 .

[0171] The density of the basal layer can be 0.5 g / cm³. 3 0.55g / cm 3 0.58g / cm 3 0.6g / cm 3 0.65g / cm 3 0.68g / cm 3 0.7g / cm 3 0.72g / cm 3 0.75g / cm 3 0.78g / cm 3 0.8g / cm 3 0.85g / cm 3 0.88g / cm 3 0.9g / cm 3 0.95g / cm 3 0.98g / cm 3 1g / cm 3 The point value of any one of them or the point value between any two.

[0172] In this embodiment, the density of the substrate layer is set to 0.5 g / cm³. 3 -1g / cm 3 This allows for an appropriate density of the substrate layer and provides it with a certain degree of thermal conductivity. Furthermore, in embodiments where the substrate layer includes a matrix layer, the matrix layer's density can be appropriately adjusted, enabling it to generate a large amount of smoke quickly while also ensuring sufficient smoke output.

[0173] In some embodiments, as shown in Figures 1 to 4, the particle layer 20 is a single layer.

[0174] In other words, laying a layer of aerosol generating matrix particles 22 on the base layer 10 is beneficial to improving production efficiency and heating efficiency and uniformity of the aerosol generating matrix particles 22.

[0175] In other embodiments, see Figure 7, the particle layer 20 has multiple layers.

[0176] Here, the term "multiple layers" for particle layer 20 means that there can be multiple particle layers 20, or that particle layer 20 can include multiple stacked sub-particle layers 21.

[0177] In this embodiment, by setting the number of particle layers 20 to multiple layers, it is beneficial to increase the loading of aerosol generating matrix particles 22, thereby increasing the loading of smoke generating medium 222 (effective substances such as glycerol), and thus increasing the amount of smoke.

[0178] In some embodiments, referring to FIG7, a single particle layer 20 includes a plurality of stacked sub-particle layers 21, wherein the particle size of the aerosol generating matrix particles 22 of at least some of the sub-particle layers 21 is different from the particle size of the aerosol generating matrix particles 22 of the other sub-particle layers 21. That is, the particle layer 20 includes aerosol generating matrix particles 22 of different sizes.

[0179] It is understandable that aerosol generating matrix particles 22 of different sizes are loaded with different smoke-generating media 222 (effective substances such as glycerol), and the aerosol generation rate is also different.

[0180] In this embodiment, by setting the particle layer 20 to include multiple stacked sub-particle layers 21, and making the particle layer 20 include aerosol generating matrix particles 22 of different particle sizes, smoke can be generated quickly, ensuring a large initial smoke volume. As the heating process progresses, the layering of flavors or the consistency of smoke volume can be guaranteed.

[0181] It should be noted that the sheet matrix 1 can be wound toward the surface of the particle layer 20, which is equivalent to the inward winding described above, or the sheet matrix 1 can also be wound toward the surface of the base layer 10 that is not covered by the particle layer 20, which is equivalent to the outward winding described above.

[0182] In some embodiments, referring to FIG16, the particle size of the aerosol generating matrix particles 22 of the sub-particle layer 21 gradually decreases along the direction away from the substrate layer 10.

[0183] By positioning the heating element close to the smaller particle layer 21 of the aerosol generating matrix particles 22, the relatively small particle size of the sub-particle layer 21 can quickly generate a large amount of smoke in the early stages of suction, resulting in sufficient aerosol generation in the aerosol generating matrix section 100. In the later stages of suction, the particle size of the aerosol generating matrix particles 22 increases, thus maintaining aerosol continuity even in these stages. Therefore, by gradually decreasing the particle size of the aerosol generating matrix particles 22 in the sub-particle layer 21 along the direction away from the base layer 10, and by combining different heating methods, the amount of aerosol released can be kept approximately consistent throughout the early, middle, and late stages of suction, thereby improving suction consistency and enhancing the suction experience.

[0184] For example, if the sheet matrix 1 is wound toward the surface of the particle layer 20, the particle size of the aerosol generating matrix particles 22 of the sub-particle layer 21 gradually decreases radially inward, and a central heating method can be used in this case; if the sheet matrix 1 is wound toward the surface of the base layer 10 that is not covered by the particle layer 20, the particle size of the aerosol generating matrix particles 22 of the sub-particle layer 21 gradually decreases radially outward, and a peripheral heating method can be used in this case.

[0185] In some embodiments, the particle size of the aerosol-generating matrix particles 22 of the sub-particle layer 21 gradually increases along the direction away from the base layer 10.

[0186] By positioning the heating element close to the smaller particle layer 21 of the aerosol generating matrix particles 22, the relatively small particle size of the sub-particle layer 21 can quickly generate a large amount of smoke in the early stages of suction, resulting in sufficient aerosol generation in the aerosol generating matrix section 100. In the later stages of suction, the particle size of the aerosol generating matrix particles 22 increases, thus maintaining aerosol continuity even in these stages. Therefore, along the direction away from the base layer 10, the particle size of the aerosol generating matrix particles 22 in the sub-particle layer 21 gradually increases. By combining different heating methods, the amount of aerosol released can be kept roughly consistent throughout the early, middle, and late stages of suction, thereby improving suction consistency and enhancing the suction experience.

[0187] For example, if the sheet matrix 1 is wound toward the surface of the particle layer 20, the particle size of the aerosol generating matrix particles 22 of the sub-particle layer 21 gradually decreases radially outward, and a peripheral heating method can be used in this case; if the sheet matrix 1 is wound toward the surface of the base layer 10 that is not covered by the particle layer 20, the particle size of the aerosol generating matrix particles 22 of the sub-particle layer 21 gradually decreases radially inward, and a central heating method can be used in this case.

[0188] In some embodiments, along the direction away from the substrate layer 10, the particle size of the aerosol generating matrix particles 22 of the sub-particle layer 21 first increases and then decreases.

[0189] When the aerosol-generating product is used in conjunction with an aerosol-generating device that uses peripheral heating, the central region of the aerosol-generating matrix section 100 receives relatively low heat, meaning that the atomization efficiency of the central region of the aerosol-generating matrix section 100 is low. Conversely, when the aerosol-generating product is used in conjunction with an aerosol-generating device that uses central heating, the outer periphery of the aerosol-generating matrix section 100 receives relatively low heat, meaning that the atomization efficiency of the outer periphery of the aerosol-generating matrix section 100 is low.

[0190] By positioning the heating element close to the smaller particle layer 21 of the aerosol generating matrix particles 22, the relatively smaller particle size of the sub-particle layer 21 can generate a larger amount of smoke more quickly in the early stage of suction, resulting in sufficient aerosol generation in the aerosol generating matrix section 100. In the middle and later stages of suction, the particle size of the aerosol generating matrix particles 22 increases, thus maintaining aerosol continuity even in these stages. Therefore, by increasing the particle size of the aerosol generating matrix particles 22 in the sub-particle layer 21 away from the base layer 10, and by combining different heating methods, the aerosol release can be kept approximately consistent throughout the early, middle, and late stages of suction, thereby improving suction consistency and enhancing the suction experience. Furthermore, by reducing the particle size of the aerosol generating matrix particles 22 away from the heating element, atomization of these particles is further facilitated, thereby improving the utilization rate of the aerosol generating matrix particles 22.

[0191] For example, if the sheet-like matrix 1 is wound toward the surface of the particle layer 20, the particle size of the aerosol generating matrix particles 22 of the sub-particle layer 21 first increases and then decreases in the radial direction inward, and a central heating method can be used in this case; if the sheet-like matrix 1 is wound toward the surface of the base layer 10 that is not covered by the particle layer 20, the particle size of the aerosol generating matrix particles 22 of the sub-particle layer 21 first decreases and then increases in the radial direction inward, and a peripheral heating method can be used in this case.

[0192] In some embodiments, along the direction away from the substrate layer 10, the particle size of the aerosol generating matrix particles 22 of the sub-particle layer 21 first decreases and then increases.

[0193] In some embodiments, referring to FIG16, the distribution density of aerosol-generating matrix particles 22 in at least some sub-particle layers 21 is different from the distribution density of aerosol-generating matrix particles 22 in other sub-particle layers 21.

[0194] In the initial stage of inhalation, areas with relatively low density can generate a large amount of smoke more quickly, resulting in sufficient aerosol production in the aerosol generating matrix section 100. In the later stages of inhalation, areas with relatively high density decrease in density after the initial inhalation, allowing for the rapid generation of a large amount of smoke in the later stages as well. Therefore, by setting different distribution densities of the aerosol generating matrix particles 22 in the particle layer 20, the aerosol release can be kept roughly consistent throughout the initial, middle, and later stages of inhalation, thus improving inhalation consistency and enhancing the inhalation experience.

[0195] In some embodiments, the distribution density of aerosol-generating matrix particles 22 in the sub-particle layer 21 gradually decreases along the direction away from the substrate layer 10.

[0196] By positioning the heating element close to the sub-particle layer 21 with a lower distribution density of aerosol generating matrix particles 22, a larger amount of smoke can be generated quickly in the early stages of suction, resulting in sufficient aerosol generation in the aerosol generating matrix section 100. In the later stages of suction, the distribution density of aerosol generating matrix particles 22 increases, maintaining aerosol continuity even in these stages. Therefore, by gradually decreasing the distribution density of aerosol generating matrix particles 22 in the sub-particle layer 21 along the direction away from the base layer 10, and by combining different heating methods, the amount of aerosol released can be kept approximately consistent throughout the early, middle, and late stages of suction, thus improving suction consistency and enhancing the suction experience.

[0197] For example, if the sheet matrix 1 is wound toward the surface of the particle layer 20, the distribution density of the aerosol generating matrix particles 22 of the sub-particle layer 21 gradually decreases radially inward, and a central heating method can be used in this case; if the sheet matrix 1 is wound toward the surface of the base layer 10 that is not covered by the particle layer 20, the distribution density of the aerosol generating matrix particles 22 of the sub-particle layer 21 gradually decreases radially outward, and a peripheral heating method can be used in this case.

[0198] In some embodiments, referring to FIG16, the distribution density of aerosol-generating matrix particles 22 in the sub-particle layer 21 gradually increases along the direction away from the base layer 10.

[0199] By positioning the heating element close to the sub-particle layer 21 with a lower distribution density of aerosol generating matrix particles 22, a larger amount of smoke can be generated quickly in the early stages of inhalation, resulting in sufficient aerosol generation in the aerosol generating matrix section 100. In the later stages of inhalation, the distribution density of aerosol generating matrix particles 22 increases, maintaining aerosol continuity even in these stages, while minimizing the amount of aerosol generating matrix particles 22 in the middle, thus ensuring unobstructed airways. Therefore, the distribution density of aerosol generating matrix particles 22 in the sub-particle layer 21 gradually increases along the direction away from the base layer 10. By combining different heating methods, the amount of aerosol released can be kept roughly consistent throughout the early, middle, and late stages of inhalation, improving inhalation consistency and thus enhancing the inhalation experience.

[0200] For example, if the sheet matrix 1 is wound toward the surface of the particle layer 20, the distribution density of the aerosol generating matrix particles 22 of the sub-particle layer 21 gradually decreases radially outward, and a peripheral heating method can be used in this case; if the sheet matrix 1 is wound toward the surface of the base layer 10 that is not covered by the particle layer 20, the distribution density of the aerosol generating matrix particles 22 of the sub-particle layer 21 gradually decreases radially inward, and a central heating method can be used in this case.

[0201] In some embodiments, along the direction away from the substrate layer 10, the distribution density of aerosol-generating matrix particles 22 in the sub-particle layer 21 first increases and then decreases.

[0202] By positioning the heating element close to the sub-particle layer 21 with a lower distribution density of aerosol generating matrix particles 22, a larger amount of smoke can be generated quickly in the early stages of suction, resulting in sufficient aerosol generation in the aerosol generating matrix section 100. In the later stages of suction, the distribution density of aerosol generating matrix particles 22 increases, maintaining aerosol continuity even in these stages. Therefore, the increased distribution density of aerosol generating matrix particles 22 in the sub-particle layer 21, away from the base layer 10, allows for consistent aerosol release across the early, middle, and late stages of suction by employing different heating methods. This improves suction consistency and enhances the suction experience. Furthermore, reducing the distribution density of aerosol generating matrix particles 22 away from the heating element further facilitates atomization of these particles, increasing their utilization rate.

[0203] When using a peripheral heating method, the outermost layer of aerosol generating matrix particles 22 has a low distribution density, which can generate smoke quickly. The middle layer has a large amount of medium, which can maintain the continuity of smoke. The low distribution density of the middle aerosol generating matrix particles 22 can ensure unobstructed air passages and avoid the defect of insufficient utilization of the internal aerosol generating matrix particles 22 caused by heat energy conduction from the outside to the inside due to peripheral heating.

[0204] For example, if the sheet-like matrix 1 is wound toward the surface of the particle layer 20, the distribution density of the aerosol-generating matrix particles 22 of the sub-particle layer 21 first increases and then decreases in the radial direction inward, and a central heating method can be used in this case; if the sheet-like matrix 1 is wound toward the surface of the base layer 10 that is not covered by the particle layer 20, the distribution density of the aerosol-generating matrix particles 22 of the sub-particle layer 21 first decreases and then increases in the radial direction inward, and a peripheral heating method can be used in this case.

[0205] In some embodiments, along the direction away from the substrate layer 10, the distribution density of aerosol-generating matrix particles 22 in the sub-particle layer 21 first decreases and then increases.

[0206] In some embodiments, the aerosol generating matrix particles 22 include substrate particles 221 and a smoke-generating medium 222, the smoke-generating medium 222 being loaded onto the substrate particles 221.

[0207] For example, the loading of the smoke-generating medium 222 of at least some aerosol generating matrix particles 22 is different from the loading of the smoke-generating medium 222 of other aerosol generating matrix particles 22. That is, the loading of the smoke-generating medium 222 of aerosol generating matrix particles 22 is not the same.

[0208] It should be noted that the smoke-generating medium 222 includes, but is not limited to, effective substances such as glycerol.

[0209] The smoke-generating medium 222 of the aerosol generating matrix particles 22 has a low loading and low specific heat capacity, which is conducive to rapid smoke explosion. The smoke-generating medium 222 of the aerosol generating matrix particles 22 has a high loading, which can maintain the amount of smoke in the middle of the suction, which is conducive to the rapid smoke explosion, large amount of smoke, and good consistency during the suction process.

[0210] Of course, in some embodiments, the loading of the smoke-generating medium 222 of the aerosol generating matrix particles 22 can be the same.

[0211] This will help improve the production efficiency of the aerosol generation matrix section 100.

[0212] In some embodiments, a single particle layer 20 includes a plurality of stacked sub-particle layers 21, wherein the loading amount of the smoke-generating medium 222 of the aerosol-generating matrix particles 22 in at least some of the sub-particle layers 21 is different from the loading amount of the smoke-generating medium 222 of the aerosol-generating matrix particles 22 in other sub-particle layers 21. That is, the particle layer 20 includes aerosol-generating matrix particles 22 with different loading amounts of smoke-generating medium 222.

[0213] In this embodiment, by setting the particle layer 20 to include multiple stacked sub-particle layers 21, and making the particle layer 20 include aerosol generating matrix particles 22 with different smoke-generating media 222 loads, smoke can be generated quickly, ensuring a large initial smoke volume. As the heating process progresses, the layering of flavors or the consistency of smoke volume can be guaranteed.

[0214] In some embodiments, along the direction away from the substrate layer 10, the loading of the smoke-generating medium 222 of the aerosol-generating matrix particles 22 of the sub-particle layer 21 gradually decreases.

[0215] By positioning the heating element close to the sub-particle layer 21 with a smaller load of aerosol generating matrix particles 22, the sub-particle layer 21 with a relatively smaller load of aerosol generating matrix particles 22 can generate a larger amount of smoke more quickly in the early stage of inhalation, resulting in sufficient aerosol generation in the aerosol generating matrix section 100 during the early stage of inhalation. In the middle and later stages of inhalation, the aerosol generating matrix particles 22 with a relatively larger load can also generate a larger amount of smoke quickly after preheating, thus maintaining aerosol continuity in the middle and later stages of inhalation. Therefore, by reducing the load of aerosol generating matrix particles 22 in the sub-particle layer 21 along the direction away from the base layer 10, and by combining different heating methods, the amount of aerosol released can be kept approximately consistent in the early, middle, and late stages of inhalation, thereby improving the consistency of inhalation and thus enhancing the inhalation experience.

[0216] For example, if the sheet matrix 1 is wound toward the surface of the particle layer 20, the load of the aerosol generating matrix particles 22 of the sub-particle layer 21 decreases radially inward, and a central heating method can be used in this case; if the sheet matrix 1 is wound toward the surface of the base layer 10 that is not covered by the particle layer 20, the load of the aerosol generating matrix particles 22 of the sub-particle layer 21 decreases radially outward, and a peripheral heating method can be used in this case.

[0217] In some embodiments, the distribution density of aerosol-generating matrix particles 22 in the sub-particle layer 21 gradually increases along the direction away from the base layer 10.

[0218] For example, if the sheet matrix 1 is wound toward the surface of the particle layer 20, the load of the aerosol generating matrix particles 22 of the sub-particle layer 21 decreases radially outward, and a peripheral heating method can be used in this case; if the sheet matrix 1 is wound toward the surface of the base layer 10 that is not covered by the particle layer 20, the load of the aerosol generating matrix particles 22 of the sub-particle layer 21 decreases radially inward, and a central heating method can be used in this case.

[0219] In some embodiments, along the direction away from the base layer 10, the loading of the smoke-generating medium 222 of the aerosol generating matrix particles 22 of the sub-particle layer 21 first increases and then decreases.

[0220] By positioning the heating element close to the sub-particle layer 21 with a smaller load of aerosol generating matrix particles 22, the sub-particle layer 21 with a relatively smaller load of aerosol generating matrix particles 22 can generate a larger amount of smoke more quickly in the early stage of inhalation, resulting in sufficient aerosol generation in the aerosol generating matrix section 100 during the early stage of inhalation. In the middle and later stages of inhalation, the aerosol generating matrix particles 22 with a relatively larger load can also generate a larger amount of smoke quickly after preheating, thus maintaining aerosol continuity in the middle and later stages of inhalation. Therefore, by reducing the load of aerosol generating matrix particles 22 in the sub-particle layer 21 along the direction away from the base layer 10, and by combining different heating methods, the amount of aerosol released can be kept approximately consistent in the early, middle, and late stages of inhalation, thereby improving the consistency of inhalation and thus enhancing the inhalation experience. Furthermore, by reducing the load on the aerosol generation matrix particles 22 that are far from the heating element, it is further beneficial to atomize the aerosol generation matrix particles 22 that are far from the heating element, thereby improving the utilization rate of the aerosol generation matrix particles 22.

[0221] For example, if the sheet matrix 1 is wound toward the surface of the particle layer 20, the load of the aerosol generating matrix particles 22 of the sub-particle layer 21 first increases and then decreases in the radial direction inward, and a central heating method can be used in this case; if the sheet matrix 1 is wound toward the surface of the base layer 10 that is not covered by the particle layer 20, the load of the aerosol generating matrix particles 22 of the sub-particle layer 21 first decreases and then increases in the radial direction inward, and a peripheral heating method can be used in this case.

[0222] In some embodiments, along the direction away from the substrate layer 10, the loading of the smoke-generating medium 222 of the aerosol-generating matrix particles 22 of the sub-particle layer 21 first decreases and then increases.

[0223] In some embodiments, the loading of the smoke-generating medium 222 is 3 to 20 times the weight of the substrate particles 221.

[0224] The load of the smoke-generating medium 222 refers to the weight of the smoke-generating medium 222 loaded on the substrate particles 221.

[0225] The loading amount of the smoke-generating medium 222 can be any one of the following values ​​or any combination of two times the weight of the substrate particles 221: 3 times, 4 times, 5 times, 6 times, 7 times, 8 times, 9 times, 10 times, 11 times, 12 times, 13 times, 14 times, 15 times, 16 times, 17 times, 18 times, 19 times, or 20 times.

[0226] It is understandable that the greater the load of the smoke-generating medium 222, the greater the amount of smoke. However, it is also more difficult to load the smoke-generating medium 222 onto the substrate particles 221, and this will result in a larger specific heat capacity.

[0227] In this embodiment, by setting the load of the smoke-generating medium 222 to 3-20 times the weight of the substrate particles 221, the aerosol generating matrix particles 22 can have sufficient smoke while having an appropriate specific heat capacity, and it is beneficial to reduce the difficulty of loading the smoke-generating medium 222 onto the substrate particles 221.

[0228] In some embodiments, the density of the aerosol-generating matrix particles 22 is 0.1 g / cm³. 3 -0.15g / cm 3 .

[0229] The density of the aerosol-generating matrix particles 22 can be 0.1 g / cm³. 3 0.11 g / cm 3 0.12g / cm 3 0.13g / cm 3 0.14 g / cm 3 0.15g / cm 3 The point value of any one of them or the point value between any two.

[0230] In this embodiment, the density of the aerosol-generating matrix particles 22 is set to 0.1 g / cm³. 3 -0.15g / cm 3 This allows the density of the aerosol generating matrix particles 22 to be appropriate, enabling the aerosol generating matrix particles 22 to generate a large amount of smoke quickly, while also ensuring that the aerosol generating matrix particles 22 can generate a sufficient amount of smoke.

[0231] In some embodiments, referring to Figures 18 and 19, the substrate particle 221 has a plurality of receiving holes 2211, the receiving holes 2211 forming openings 2212 on the outer surface of the substrate particle 221, and the smoke-generating medium 222 is disposed within the receiving holes 2211. The aerosol generating matrix particle 22 also includes a hydrophobic structure 223, which is disposed on the outside of the substrate particle 221 and at least partially covers the openings 2212 of the receiving holes 2211.

[0232] The substrate particle 221 has a plurality of receiving holes 2211, and the receiving holes 2211 form openings 2212 on the outer surface of the substrate particle 221. The receiving holes 2211 can be through holes, blind holes, or part of them can be through holes and part of them can be blind holes, and there is no limitation thereto.

[0233] As an example, the substrate particles 221 can be obtained from porous plant materials through processes such as cutting, shaping, and sieving. The porous plant materials here can be natural porous plant materials, that is, materials with multiple pores that have no artificial processing or minimal artificial processing, such as rush pith or bamboo fungus. Alternatively, the porous plant materials can be materials formed from natural materials through foaming processes, such as foamed bamboo. Or, the porous plant materials can be artificially synthesized materials. This embodiment does not impose any limitations on these aspects.

[0234] The specific shape and size of the substrate particles 221 are not limited. For example, the substrate particles 221 can be spherical particles, strip particles, polyhedral particles, irregular particles, etc.

[0235] Smoke-generating medium 222 and / or flavoring medium 224 are disposed within receiving hole 2211. Smoke-generating medium 222 here includes, but is not limited to, glycerin, and flavoring medium 224 here includes, but is not limited to, flavorings, nicotine preparations, cooling agents, etc.

[0236] In this embodiment, the receiving hole 2211 may contain only the smoke-generating medium 222. In this case, the aerosol generating matrix particles 22 can be used in conjunction with other aerosol generating matrices or other structures (such as popping beads) that have aroma-enhancing functions. Alternatively, the receiving hole 2211 may contain only the aroma-enhancing medium 224. In this case, the aerosol generating matrix particles 22 can be used in conjunction with other aerosol generating matrices or other structures that have smoke-generating functions. Of course, the receiving hole 2211 may also contain both the smoke-generating medium 222 and the aroma-enhancing medium 224 simultaneously.

[0237] The hydrophobic structure 223 is disposed on the outside of the substrate particles 221 and at least partially covers the opening 2212 of the receiving hole 2211. The hydrophobic structure 223 here specifically refers to a structure formed by preparing a hydrophobic material. A hydrophobic material is a type of material that repels water. The hydrophobic material can be a natural hydrophobic material or an artificially synthesized hydrophobic material, and there is no limitation on this.

[0238] In this embodiment, the hydrophobic structure 223 may cover only a portion of the opening 2212 of the receiving hole 2211, or it may cover all the openings 2212 of the receiving hole 2211. Furthermore, for a single receiving hole 2211, the hydrophobic structure 223 may completely cover the opening 2212 of the receiving hole 2211, or it may only cover a portion of the opening 2212 of the receiving hole 2211.

[0239] The specific structural form of the hydrophobic structure 223 is not limited. For example, the hydrophobic structure 223 can be a relatively dense coating structure or a relatively sparse powder coating layer structure. The hydrophobic structure 223 can adhere to the outer surface of the substrate particles 221 by its own physical properties or by means of an adhesive, etc. The hydrophobic structure 223 can also adhere to the outer surface of the substrate particles 221 by means of an adhesive, etc.

[0240] In related technologies, problems such as dampness and mold growth of the smoke-generating medium and / or volatilization of the aroma-enhancing medium may occur during the storage of the aerosol generating matrix, resulting in a poor suction experience when the aerosol generating matrix is ​​actually used.

[0241] In this embodiment, the smoke-generating medium 222 is disposed in the receiving hole 2211 of the substrate particles 221, and a hydrophobic structure 223 is used to at least partially cover the opening 2212 of the receiving hole 2211. The hydrophobic structure 223 can restrict the movement of water vapor between the external environment and the receiving hole 2211, thereby reducing the probability that water vapor in the external environment will enter the receiving hole 2211 and cause the smoke-generating medium 222 to become damp and moldy, and / or restricting the evaporation of other components such as the flavoring medium 224 in the receiving hole 2211 to the external environment, thereby improving the smoking experience.

[0242] On the other hand, in this embodiment, the porous structure of the substrate particles 221 enables it to have a high loading capacity for the smoke-generating medium 222 and / or the aroma-enhancing medium 224 (taking rush as an example, it can adsorb 3-5 times its own weight of the smoke-generating medium 222 and / or the aroma-enhancing medium 224), thereby increasing the amount of smoke and / or the aroma during the inhalation process, thus improving the inhalation experience.

[0243] On the other hand, in this embodiment, the receiving pores 2211 of the substrate particles 221 have a certain adsorption force for the smoke-generating medium 222 and / or the aroma-enhancing medium 224, and the hydrophobic structure 223 also has a certain blocking force. When the aerosol generating matrix particles 22 are actually heated, as the substrate particles 221 heat up, the smoke-generating medium 222 and / or the aroma-enhancing medium 224 will continuously migrate towards the opening 2212 of the receiving pores 2211. The traction force of heat conduction competes with the adsorption force of the substrate particles 221 themselves and the blocking force of the hydrophobic structure 223. By controlling this competitive relationship, the gradual release of smoke and aroma can be achieved, thereby increasing the number of puffs and the consistency of each puff, and thus improving the vaping experience. As an example, this competitive relationship can be adjusted by adjusting the material of the substrate particles 221 (the adsorption capacity of substrate particles 221 of different materials is different), the structural form of the hydrophobic structure 223, and the heating intensity during actual use.

[0244] In summary, the aerosol generating matrix particles 22 in this embodiment can increase the loading capacity of the smoke generating medium 222, reduce the probability of the smoke generating medium 222 becoming damp and moldy during storage, and can achieve gradual release of smoke, providing a better smoking experience.

[0245] In some embodiments, the maximum diameter of the substrate particles 221 is 1-5 mm.

[0246] The maximum diameter of the substrate particles 221 can be any one of 1mm, 1.5mm, 2mm, 2.5mm, 3mm, 3.5mm, 4mm, 4.5mm, and 5mm, or any combination thereof.

[0247] Here, the maximum diameter refers to the maximum distance between two points on the outer surface of the substrate particle 221. For example, in an embodiment where the substrate particle 221 is generally cylindrical, the maximum diameter can be the height of the cylinder or the radial dimension of the cylinder.

[0248] In some embodiments, substrate particles 221 with a maximum diameter of 1.5 mm to 3.5 mm account for 60% to 80% of the total number of substrate particles 221 in the particle layer.

[0249] In other words, the maximum diameter of most substrate particles 221 can be 1.5mm-3.5mm, which helps to improve the uniformity of substrate particles 221, thereby improving the consistency of aerosol release.

[0250] In this embodiment, the aerosol generating matrix particles have a small volume, which helps to increase the filling amount when the aerosol generating matrix particles are actually applied to aerosol generating products, thereby improving the suction experience of aerosol generating products.

[0251] In some embodiments, the substrate particles 221 are formed by cutting porous plant material.

[0252] This reduces the difficulty of preparing the substrate particles 221, thereby reducing the preparation cost of aerosol-generated matrix particles.

[0253] In some embodiments, the porous plant materials include rush, bamboo fungus, freeze-dried plants, and foamed plants. For example, freeze-dried plants can be freeze-dried fruits, vegetables, etc., and foamed plants can be foamed bamboo. It should be noted that since the aerosol generating matrix particles 22 require heating during actual use, to minimize the generation of unpleasant odors during heating, when selecting vegetables and fruits as porous plant materials, varieties with lower sugar content should be chosen whenever possible. It should also be noted that the aroma carried by some plants (such as bamboo) may be unnecessary for the actual aerosol generating matrix particles 22 during absorption; therefore, when selecting such varieties as porous plant materials, deodorization treatment can be performed on them.

[0254] In this embodiment, the porous plant material is selected from natural plants. Compared with artificially synthesized porous plant materials, it can further reduce the preparation cost of aerosol generation matrix particles. On the other hand, it can reduce the possibility that aerosol generation matrix particles 22 will produce unpleasant odors and / or harmful gases when heated.

[0255] In some embodiments, please refer to FIG18, the hydrophobic structure 223 includes hydrophobic powder 2231, which is formed by crushing hydrophobic herbal material and is attached to the outer surface of the substrate particles 221.

[0256] The hydrophobic powder 2231 here can be formed by crushing the hydrophobic material mentioned above. More specifically, the hydrophobic material can be crushed and sieved through a sieve with a mesh size greater than or equal to 100 to obtain the hydrophobic powder 2231, such as sieves with a mesh size of 100-160.

[0257] In this embodiment, during the actual preparation process, the substrate particles 221 adsorbed with the smoke-generating medium 222 can be directly placed into the hydrophobic powder 2231 and stirred, so that the hydrophobic powder 2231 adheres to the outer surface of the substrate particles 221 to form a powder-coated hydrophobic structure 223. In this way, the preparation cost of aerosol generation matrix particles 22 can be further reduced.

[0258] In some embodiments, the hydrophobic powder 2231 is formed by pulverizing hydrophobic herbal materials.

[0259] The hydrophobic herbaceous materials used here include, but are not limited to, rush, lemongrass, rosemary, and corn silk.

[0260] In this embodiment, natural hydrophobic herbal materials are used to prepare hydrophobic powder 2231. Compared with using artificially synthesized hydrophobic materials, this can further reduce the preparation cost of aerosol generating matrix particles 22 and further reduce the possibility that aerosol generating matrix particles 22 will produce unpleasant odors and / or harmful gases when heated. Similarly, in some embodiments, the hydrophobic herbal materials can also be deodorized to reduce the occurrence of unwanted fragrances.

[0261] In some embodiments, please refer to FIG19, the hydrophobic structure 223 includes a hydrophobic coating 2232, which is coated on the outer surface of the substrate particles 221.

[0262] Compared to the hydrophobic powder 2231 mentioned above, the hydrophobic coating 2232 has a relatively denser structure. As an example, in the actual preparation process, the hydrophobic material can be prepared into a slurry, which is then coated onto the outer surface of the substrate particles 221 and dried to form the hydrophobic coating 2232.

[0263] In this embodiment, a hydrophobic coating 2232 is used to form a hydrophobic structure 223, which can further improve the water vapor isolation effect of the hydrophobic coating 2232, thereby improving the suction experience.

[0264] In some embodiments, the hydrophobic coating 2232 includes hydrophobic plant powder and broadleaf plant fiber. The hydrophobic plant powder mainly provides a hydrophobic effect, while the broadleaf plant fiber can provide some support for the hydrophobic herbal material powder, so that the two can form a relatively dense hydrophobic coating 2232 when combined.

[0265] The types of hydrophobic plants mentioned above can include the hydrophobic herbaceous materials mentioned above, or other types of hydrophobic plants, such as honeysuckle, mulberry leaves, chrysanthemum, dandelion, kudzu root, ophiopogon japonicus, almond, hyacinth bean, and lycium bark.

[0266] The particle size of the hydrophobic plant powder here can be the same as or different from that of the hydrophobic powder 2231 mentioned above. For example, the hydrophobic powder 2231 mentioned above can be a powder obtained by crushing hydrophobic herbaceous material and sieving it through a sieve with a mesh size of 100 or larger, such as powder sieved through a 100-160 mesh sieve. The hydrophobic plant powder here can be a powder obtained by crushing hydrophobic plants and sieving them through a sieve with a mesh size of 160 or larger, such as powder sieved through a 160-200 mesh sieve.

[0267] The broad-leaved plants here include, but are not limited to, poplar, eucalyptus, and mulberry branches.

[0268] In this embodiment, hydrophobic plant powder and broad-leaved plant fiber are used to form the hydrophobic coating 2232. That is, natural plant materials are selected as the whole to form the hydrophobic coating 2232. In this way, the preparation cost of aerosol generating matrix particles 22 can be further reduced, and the possibility of aerosol generating matrix particles 22 producing unpleasant odors and / or harmful gases when heated can be further reduced.

[0269] In some embodiments, the thickness of the hydrophobic coating 2232 is 0.5-1 mm.

[0270] The thickness of the hydrophobic coating 2232 can be any one of 0.5mm, 0.55mm, 0.6mm, 0.65mm, 0.7mm, 0.75mm, 0.8mm, 0.85mm, 0.9mm, 0.95mm, or 1mm, or any value between two of them.

[0271] In some embodiments, the ratio of the maximum diameter of the substrate particles 221 to the thickness of the hydrophobic coating 2232 is 1:10-1:2.

[0272] The use of the above-mentioned thickness of hydrophobic coating 2232 can achieve a better effect of blocking water vapor, and can also make the smoke-generating medium 222 evaporate better from the receiving hole 2211 when heated.

[0273] In some embodiments, the particle layer 20 includes a particle region provided with aerosol generation matrix particles 22 and a particle-free region without aerosol generation matrix particles 22. The particle region and the particle-free region are alternately arranged.

[0274] Here, both the particulate region and the non-particulate region extend along the height direction of the aerosol generation matrix section 100.

[0275] The particulate region may extend to both ends of the aerosol generation matrix section 100 along the height direction, or it may not extend to both ends of the aerosol generation matrix section 100 along the height direction.

[0276] It is understandable that the height direction of the aerosol generation matrix section 100 is perpendicular to the winding direction.

[0277] In this embodiment, by alternating between particulate and non-particulate regions, a stable airway can be formed in the non-particulate region, thereby improving the stability of the suction resistance, while the aerosol generation matrix particles 22 in the particulate region can be heated to generate aerosols.

[0278] In some embodiments, the particle layer 20 further includes receptors that are deposited on the substrate layer 10.

[0279] Here, the specific type of sensor is not limited; for example, the heating component can be electromagnetically heated by the sensor.

[0280] In this embodiment, the particle layer 20, by setting aerosol generation matrix particles 22 and a sensor, can be applied to electromagnetic heating, which is beneficial to improving heating efficiency.

[0281] In some embodiments, the aerosol generating matrix particle 22 includes a sensor and a smoke-generating medium 222, with the smoke-generating medium 222 loaded on the sensor.

[0282] In this embodiment, by setting the aerosol generating matrix particles 22 to include a sensor and a smoke generating medium 222, with the smoke generating medium 222 loaded on the sensor, the heating component can be electromagnetically heated by the sensor of the aerosol generating matrix particles 22, and the smoke generating medium 222 loaded on the sensor can generate aerosol after heating, further improving the heating efficiency.

[0283] In some embodiments, the sheet matrix 1 further includes receptors mixed in the granular layer.

[0284] In other words, the mixture of the sensor and the aerosol-generating matrix particles can be applied to electromagnetic heating, which further helps to improve heating efficiency.

[0285] In some embodiments, please refer to FIG8, there are multiple sheet-like substrates 1, and multiple sheet-like substrates 1 are stacked and then wound to form an aerosol to generate a substrate segment 100.

[0286] Here, by stacking multiple sheet-like substrates 1 and then winding them to form an aerosol generating substrate segment 100, it is beneficial to reduce the number of winding turns.

[0287] In this embodiment, the multiple sheet-like matrix layers can be the same or different.

[0288] It should be noted that there are no restrictions on the arrangement of multiple sheet-like matrix layers.

[0289] In some embodiments, as shown in FIG8, the granular layers 20 of two adjacent sheet-like matrix 1 are arranged close to each other. That is, the granular layers 20 are stacked face-to-face with the sub-granular layers 21, which is beneficial to the adhesion reliability of the aerosol generation matrix particles and improves the roundness of the aerosol generation matrix segment during the winding process.

[0290] In other embodiments, the base layers 10 of two adjacent sheet-like substrates 1 are arranged close to each other. That is, the base layers 10 are stacked face to face. Especially when aluminum foil is used, due to its rapid heat conduction, the internal heating of the aerosol generation matrix particles can be more complete, and the specific heat capacity gradient effect is more easily manifested.

[0291] In some embodiments, the base layer 10 of one of two adjacent sheet-like matrices 1 is positioned close to the granular layer 20 of the other. This is beneficial for airway stability and heat transfer.

[0292] Please refer to Figures 1 to 9. The aerosol generating matrix sheet includes a substrate layer 10 and a particle layer 20 stacked together. The particle layer 20 includes aerosol generating matrix particles 22, which are laid on the substrate layer 10. The thickness of the particle layer 20 is greater than or equal to the thickness of the substrate layer 10.

[0293] It is understandable that by making the thickness of the granular layer 20 greater than or equal to the thickness of the base layer 10, it is beneficial to increase the loading of effective substances in the sheet matrix 1, while also improving the air permeability of the sheet matrix 1. This allows stable air channels to form inside the sheet matrix 1, thereby improving the stability of the suction resistance. In addition, it also facilitates the transfer of heat from the base layer 10 to the granular layer 20.

[0294] In some embodiments, the air permeability of the particle layer 20 is greater than that of the base layer 10.

[0295] The air permeability of the base layer 10 is less than that of the particle layer 20, which is beneficial to improving the thermal conductivity of the base layer 10.

[0296] It is understandable that there are certain gaps between adjacent aerosol generating matrix particles 22, which is conducive to airflow. Thus, by setting the air permeability of the particle layer 20 to be greater than that of the base layer 10, a stable air channel can be formed inside the particle layer 20, which is beneficial to improving the stability of suction resistance.

[0297] In some embodiments, as shown in Figures 2 and 3, the particle layer 20 is at least partially embedded in the base layer 10.

[0298] The phrase "at least partially embedded in the substrate layer 10" means that a portion of the particle layer 20 may be embedded within the substrate layer 10 while another portion is located outside the substrate layer 10; or the entire region of the particle layer 20 may be embedded within the substrate layer 10.

[0299] For example, the embedding depth of the particle layer 20 is less than or equal to half of the total thickness of the particle layer 20.

[0300] This further improves the connection strength between the particle layer 20 and the base layer 10, and further reduces the displacement of the aerosol-generating matrix particles 22 of the particle layer 20 due to factors such as vibration during transportation, storage or use, thereby further improving the stability of the suction resistance.

[0301] The embodiments of this disclosure also provide a method for preparing an aerosol-generated article, the method comprising the following steps.

[0302] Step S101: Prepare substrate particles 221, which have multiple receiving holes 2211, and the receiving holes 2211 form openings 2212 on the outer surface of the substrate particles 221.

[0303] In step S101, the specific structure of the substrate is not limited. For example, the substrate can be spherical particles, strip particles, polyhedral particles, irregular particles, etc. The receiving hole 2211 of the substrate can be a through hole, a blind hole, or part of it can be a through hole and the other part can be a blind hole. There are no restrictions on this.

[0304] The substrate particles 221 can be obtained by processing the porous plant material through methods such as cutting, shaping, and sieving. The porous plant material here can be a natural porous plant material, that is, a structure with multiple pores that has not undergone artificial processing or has minimal artificial processing, such as rush pith, bamboo fungus, freeze-dried fruit, freeze-dried fruits and vegetables, etc. Alternatively, the porous plant material can be a material formed by foaming or other processes from natural materials, such as foamed bamboo. Or, the porous plant material can be a synthetic material. This embodiment does not impose any limitations on this.

[0305] For example, porous plant material can be chopped into fine particles of 0.5-2 mm in length (particle size depends on the specific material, but the same material should maintain uniform particle size; if necessary, it can be sieved for later use).

[0306] Step S102: Prepare the matrix slurry by mixing the base material, glycerin, broadleaf fiber solution, fragrance, nicotine preparation and / or cooling agent evenly to obtain the matrix slurry.

[0307] Here, the order of steps S101 and S102 is not particularly limited, and they can be performed simultaneously.

[0308] By weight, 30-35 parts of base material, 30-35 parts of glycerin, 10-15 parts of broadleaf fiber solution, 10-15 parts of flavoring, and 1-2 parts of nicotine preparation and / or cooling agent are mixed to form a matrix slurry, wherein the broadleaf fiber solution is an aqueous solution with a mass fraction of 2.5%.

[0309] The base material includes plant materials, fillers, and adhesives.

[0310] For example, plant-based raw materials include one or more of the following: wheat flour, rice flour, cassava flour, buckwheat flour, oat flour, sweet potato flour, ophiopogon japonicus powder, kudzu root powder, carrot powder, honeysuckle powder, dandelion powder, loofah sponge powder, etc.

[0311] For example, the filler includes one or more of calcium carbonate, calcium chloride, magnesium chloride, calcium phosphate, etc.

[0312] For example, the adhesive includes one or more of carrageenan, konjac gum, locust bean gum, guar gum, xanthan gum, sodium alginate, agar, etc.

[0313] In this embodiment, the matrix slurry with the above-mentioned ratio has good fluidity, allowing it to be quickly and uniformly cast, and enabling glycerin and fragrances to be mixed in as much as possible, thereby increasing the loading of effective substances in the matrix layer. It should be noted that any other suitable ratio can also be used to prepare the matrix slurry.

[0314] For example, the substrate layer can be heated by a three-stage hot air process, with the temperatures of the three stages being 70-75℃, 75-80℃, and 90-95℃ respectively. Before the substrate layer enters the heating stage, aerosol generating substrate particles 22 are laid on the surface of the substrate layer to adhere to it. Depending on the requirements of different smoke volume, number of continuous puffs, winding method, and other indicators, the distribution of aerosol generating substrate particles 22 can be uniform, irregular, or intermittent strip distribution.

[0315] Step S103: Substrate particles 221 adsorb the smoke-generating medium 222.

[0316] Take 10-15 parts of the substrate particles 221 from step S101, 40-80 parts of glycerol (the particles can be divided into several parts, each part corresponding to the adsorption of different masses of glycerol, forming gradient products with different adsorption loadings), and spray them in a vacuum of 0.085-0.095 MPa for 20-30 minutes. Break the vacuum every 5 minutes to ensure that the particles can completely adsorb the glycerol into the particle interior, leaving almost no glycerol residue on the particle surface. Then take 20-50 parts of fragrance (the solvent is mainly propylene glycol and a small amount of alcohol, which can be matched to adsorb into fragrance particles with different loading gradients according to the fragrance concentration), 1-2 parts of NGD / cooling agent, etc., and repeat the above method for adsorption to obtain aerosol generation matrix particles 22 with high adsorption loading.

[0317] For example, the slurry obtained in step S102 can also be coated onto the aerosol generating matrix particles 22 obtained in step S103 using a coating device, with a coating thickness of 0.2 to 0.4 mm, and dried under hot air at 60 to 80°C for 30 to 60 minutes to obtain coated particles.

[0318] For example, the aerosol generating matrix particles 22 obtained in step S103 are mixed with the above-mentioned coating particles to form a sensor, and the mixture is prepared in proportion and then set aside.

[0319] Here, by adsorbing different loads of glycerol and fragrance by aerosol generating matrix particles 22, and by whether or not they are coated, the aerosol generating matrix particles 22 as a whole form a mixture with different specific heat capacity gradients. Those with low adsorption loads have low specific heat capacity, which is conducive to rapid smoke bursts. Those with high loads can maintain the amount of smoke in the middle of the inhalation. Coated particles can maintain the amount of smoke in large puffs, making the smoke burst fast, the amount of smoke large, and the consistency good throughout the inhalation process.

[0320] Step S104: Casting. The slurry obtained in step S102 is cast onto an aluminum foil with a thickness of 0.01 to 0.015 mm or a nonwoven fabric weighing 12 to 50 g on a casting machine to form a matrix layer with a casting thickness of 0.2 to 1.5 mm.

[0321] The casting machine employs a three-stage hot air heating system, with temperatures of 70–75°C, 75–80°C, and 90–95°C respectively. Before the casting enters the heating stage, the particles obtained in step S103 are uniformly dispersed on the surface of the cast thin layer, allowing them to adhere to the thin layer. Depending on requirements such as smoke volume, number of continuous puffs, and winding method, the particle distribution can be irregular saturated distribution or intermittent strip distribution (equal spacing, unequal spacing, etc.). As an example, the positive electrode current collector can be made of metal foil, conductive polymer material, carbon material, or composite current collector. For instance, as a metal foil, pure metals, alloys, or surface-treated metals can be used, including but not limited to stainless steel, copper, aluminum, nickel, titanium, or silver.

[0322] For example, a coating layer is provided on the matrix layer. Depending on the requirements of different products such as aroma and cigarette structure, non-woven fabric or aluminum foil can be selected to cover the surface of the matrix layer.

[0323] For example, the weight of the coating layer when it is a nonwoven fabric is 12 to 20 g.

[0324] For example, when the coating layer is aluminum foil, the thickness is 0.01 to 0.015 mm.

[0325] The nonwoven fabric is pre-treated under a closed system and a positive pressure of 0.1–0.2 MPa to absorb 0.5–1.5 times its own weight in fragrance. The upper layer is then fixed to the casting film with quick-drying tobacco adhesive or degreased cotton thread.

[0326] Step S105: Rolling, the matrix layer is rolled up according to different requirements such as the number of suction ports, smoke volume, and smoke burst speed to obtain aerosol generation matrix segment 100.

[0327] For example, the material is cut into thin sheets of varying widths of 1.5–2.5 cm, rolled into cylinders in different directions (1–3 turns), and then cut into substrate segments of 12–20 mm in length. After cutting, one end is sealed with PLA (polylactic acid) mesh to prevent the medium from falling into the cooling section. The rolling method can be either inward or outward rolling of the granular surface.

[0328] During the roll-up process, without further coating, the aerosol generating matrix particles 22 roll inward, leaving an air channel in the center. The outer layer is a continuous phase, which means that either central heating or peripheral heating can be used. Central heating is more efficient and can quickly raise the temperature of the contacting aerosol generating matrix particles 22 and produce smoke. With peripheral heating, due to the specific heat gradient of the medium, some of the aerosol generating matrix particles 22 will also quickly produce smoke.

[0329] The aerosol generating matrix particles 22 roll outwards and are heated from the periphery. The particle size and distribution density of the aerosol generating matrix particles 22 will cause the outermost aerosol generating matrix particles 22 to have a smaller surface area in contact with the device than the continuous phase medium, which can make the aerosol generating matrix particles 22 in contact with the heating surface emit smoke quickly.

[0330] In the case of cast film coating, when the aerosol generating matrix particles 22 are rolled inward, whether it is non-woven fabric or aluminum foil, it can provide a certain support during the winding process, ensuring the roundness of the aerosol generating matrix segment 100. Non-woven fabric can carry fragrance and increase air permeability, while aluminum foil can enhance heat transfer, both of which are beneficial to improving the suction experience.

[0331] The particle layer 20 can be a single layer or multiple layers. In the case of multiple layers, the density, loading, and particle size of the aerosol generating matrix particles 22 in different layers can be the same or different. It can be designed according to different heating methods. For example, from the cast sheet layer to the particle layer 20, they are non-woven fabric, matrix layer, small particle layer 20, large particle layer 20, and small particle layer 20, respectively. They adopt an inward rolling form, which is suitable for central heating. This gradient design can quickly produce smoke and ensure a large initial smoke volume. As the heating process progresses, it can ensure the layering of flavor or the consistency of smoke volume, etc.

[0332] For example, the number of turns during winding can be adjusted by adjusting the thickness of the matrix layer and the size of the matrix particles 22 generated by adsorbing aerosols.

[0333] The matrix layer is thick, and the particle size of the aerosol-generated matrix particles 22 of the particle layer 20 is large, so only one layer needs to be wound, which is more suitable for peripheral heating and improves heating efficiency.

[0334] The thin matrix layer and small particle size of the aerosol-generating matrix particles 22 in the particle layer 20 allow for 2-3 layers to be wound together. Increased aerosol-generating matrix particle 22 loading extends the number of suction ports. Using aluminum foil as a support material accelerates heat conduction. By adjusting the density and regularity of the aerosol-generating matrix particles 22 adsorption (irregular or striped distribution), sufficient airflow can be formed together with the support material, ensuring adequate suction resistance. During multi-layer winding, the density of each particle layer 20 can be adjusted by regulating the gaps in the striped distribution, such as forming a sparse-dense-sparse structure. When using peripheral heating, the outermost particle layer 20 has a smaller quantity, allowing for rapid smoke generation; the middle particle layer 20 has a larger quantity, maintaining continuous smoke production; and the smaller quantity of the middle particle layer 20 ensures unobstructed airflow while avoiding the inadequate utilization of the inner particle layer 20 caused by heat conduction from the outside to the inside during peripheral heating.

[0335] Through the above measures, the glycerol loading of aerosol generating matrix particles 22 reaches more than 45% (dry basis), the product's moisture absorption weight gain is less than 10% during the shelf life, the number of puffs can reach 50, the draw resistance is reduced by 20%, the average smoke volume is greater than 5.5mg / puff, and the consistency RSD of each puff is less than 20%.

[0336] Step S106: Assembly. The aerosol generation matrix section 100 obtained in step S105 is assembled with other components such as plugs / cooling sections (sealing section and cooling section are connected) / filters to form a finished product that can be used in smoking devices with circumferential or central needle heating.

[0337] In one embodiment, referring to Figure 17, the aerosol generation matrix section 100, the cooling section 300, and the filtration section 200 can be coaxially arranged cylinders, with the first direction being the axial direction of the aerosol generation matrix section 100, the cooling section 300, and the filtration section 200.

[0338] It is understandable that during the user's suction process, the aerosol generated by the aerosol generation matrix section 100 flows towards the filter section 200 in the first direction.

[0339] In one embodiment, referring to FIG17, the aerosol generating article further includes a breathable sealing element 500 disposed at at least one end of the aerosol generating matrix section 100.

[0340] The sealing element 500 is a membrane through which airflow can pass.

[0341] For example, the sealing element 500 can be cigarette paper, non-woven fabric, polymer, etc., which have good air permeability.

[0342] For example, the permeability of the sealing element 500 can be greater than or equal to 500 CU (CU is cm). 3 / (min*cm2 (abbreviation of *kpa).

[0343] A sealing element 500 can be installed at one end of the aerosol generating matrix section 100 near the cooling section 300. That is, the aerosol generated by the aerosol generating matrix section 100 can pass through the sealing element 500 and enter the airflow channel, where it will be cooled. Here, the sealing element 500 can block the aerosol generating matrix section 100 to prevent the aerosol generating matrix section 100 or the aerosol generating matrix particles 22 within the aerosol generating matrix section 100 from accidentally entering the airflow channel (for example, the centrally heated heating element pushing the aerosol generating matrix section 100 into the airflow channel). This prevents the aerosol generating matrix section 100 or the aerosol generating matrix particles 22 within the aerosol generating matrix section 100 from entering the airflow channel, thus reducing the number of heatable aerosol generating matrix sections 100 and affecting the heating effect. It also prevents the aerosol generating matrix section 100 from blocking the airflow channel and affecting the suction resistance.

[0344] A sealing element 500 can also be installed at the end of the aerosol generating matrix section 100 away from the cooling section 300. Here, the sealing element 500 prevents the aerosol generating matrix particles 22 within the aerosol generating matrix section 100 from falling out and remaining inside the aerosol generating device. Furthermore, the condensate after aerosol condensation will also largely prevent leakage and residue inside the aerosol generating device. Therefore, the aerosol generating device using this structure achieves higher cleanliness, and when drawing aerosol products of different flavors, cross-contamination of flavors is virtually eliminated.

[0345] In other embodiments, sealing elements 500 can also be covered at opposite ends of the airflow channel, thereby eliminating the need to distinguish the assembly direction of the cooling section 300 during the assembly of the aerosol-generated product, thus improving the ease of assembly.

[0346] In one embodiment, the cooling section 300 has an airflow channel. The aerosol generating matrix section 100 enters the airflow channel and is cooled within the airflow channel.

[0347] In other embodiments, the cooling section 300 may also adopt other structural forms, as long as it can achieve the cooling effect.

[0348] In some embodiments, the aerosol generating article may not have a functional segment, that is, the aerosol generating matrix segment 100 can constitute the aerosol generating article on its own for use in some special aerosol generating devices. For example, the aerosol generating device includes a nozzle and a cooling component, which can be reused or used once, simply by inserting or removing the aerosol generating matrix segment 100 into the heating space.

[0349] In the above embodiments, the aerosol generation matrix segment 100 can be cylindrical, sheet-like, square, etc., and can be adapted according to the characteristics of the heating component and the aerosol generation device.

[0350] In one embodiment, referring to FIG10, the aerosol generating article 1000 further includes a front plug section 400, which is disposed at one end of the aerosol generating matrix section 100 away from the functional section along a first direction.

[0351] During use, the front plug section 400 of the aerosol generating product 100 can effectively reduce the probability of the aerosol generating matrix section 100 falling out of the outer wrapping layer 600.

[0352] The aerosol generating product 1000 has a distal lip end and a proximal lip end at its two ends along the first direction. The proximal lip end refers to the end of the aerosol generating product 1000 that is closer to the user when using it, while the distal lip end refers to the end of the aerosol generating product 1000 that is farther away from the user when using it. The front plug section 400 is located at the distal lip end of the aerosol generating product 1000. This effectively prevents aerosol condensation from flowing downwards and remaining in the container of the aerosol generating device, thus avoiding contamination and difficulty in cleaning the container. It also prevents cross-contamination of flavors when inhaling different flavored aerosol generating products 1000.

[0353] During the process of removing the aerosol-generated product 1000 from the receiving chamber of the aerosol generating device, even if adhesion occurs between the heating component and the aerosol generating matrix section 100, the front plug section 400 can push the aerosol generating matrix section 100 to move away from the receiving chamber, thereby facilitating the separation of the heating component and the aerosol generating matrix section 100 and making it easier for the aerosol-generated product 1000 to be taken out from the receiving chamber of the aerosol generating device.

[0354] In one embodiment, referring to Figure 10, the front plug section 400 is a hollow tube structure. That is, the front plug section 400 has an internal channel that runs through the end of the front plug section 400 away from the aerosol generating matrix section 100 and the end near the aerosol generating matrix section 100. The heating component can pass through the internal channel and be inserted into the aerosol generating matrix section 100. By setting the front plug section 400 as a hollow tube structure, the resistance encountered by the aerosol generating article 1000 during insertion into the receiving chamber of the aerosol generating device is relatively low, which is convenient for user operation.

[0355] In one embodiment, the pre-plug section 400 is made of a breathable material. This allows airflow to pass relatively smoothly through the pre-plug section 400, thereby reducing the suction resistance of the aerosol-generating article 1000 and improving the user's suction experience.

[0356] Second Implementation Method

[0357] The second embodiment of this disclosure provides an aerosol generation matrix segment 700. Please refer to Figures 20 to 23. The aerosol generation matrix segment includes a sheet matrix 710. The aerosol generation matrix segment is constructed as a wound structure formed by winding the sheet matrix 710.

[0358] The length of the aerosol generating matrix segment is not limited. For example, its length can be any size in the range of 8mm to 20mm, preferably any size in the range of 12mm to 20mm. For example, the length of the aerosol generating matrix segment is 8mm, 12mm, 13mm, 14mm, 15mm, 16mm, 17mm, 18mm, 19mm, 20mm, etc.

[0359] The term "sheet matrix 710" refers to a matrix that is generally a thin sheet structure extending along a plane.

[0360] The sheet-like matrix 710 can be wound to obtain a columnar aerosol generation matrix segment. The radial direction of the aerosol generation matrix segment is the thickness direction of the sheet-like matrix 710.

[0361] Please refer to Figures 20 to 22. The sheet-like matrix 710 includes a substrate layer 712 and a matrix layer 711 stacked together. The matrix layer 711 can be heated and atomized to generate an aerosol. That is, the matrix layer 711 and the substrate layer 712 are stacked along the thickness direction of the sheet-like matrix 710.

[0362] The material of the substrate layer 712 is not limited.

[0363] In some embodiments, the substrate layer 712 is made of non-woven fabric. After the sheet matrix 710 is wound to form an aerosol generating matrix segment, the matrix layer 711 is sandwiched between two layers of non-woven fabric in the radial direction of the aerosol generating matrix segment. When heat is transferred radially along the aerosol generating matrix segment, the non-woven fabric has good air permeability, which is beneficial for the rapid smoke emission after the matrix layer is heated and for increasing the amount of smoke.

[0364] In addition, non-woven fabrics have a certain degree of air permeability, resulting in relatively low suction resistance during the aerosol generation process; moreover, non-woven fabrics are relatively soft, making it easy to wind the sheet matrix 710 into aerosol generation matrix segments.

[0365] It should be noted that there are no restrictions on the type of smoke-generating agent. For example, smoke-generating agents include, but are not limited to, glycerin, propylene glycol, etc.

[0366] In other embodiments, the substrate layer 712 is made of metal foil. More specifically, it can be aluminum foil. Metal foil has relatively good ductility, which makes it easy to process the substrate layer 712 into various shapes and sizes; in addition, metal foil has good toughness, resulting in higher overall structural strength of the aerosol generation matrix segment; metal foil also has good thermal conductivity, which is beneficial to improving the smoke generation rate of the aerosol generation product.

[0367] In some embodiments, the substrate layer 712 may be made of plant fiber fabric, which can carry fragrance and increase breathability; in addition, the plant fiber fabric also has the functions of cushioning and elasticity, which is beneficial to the cooperation between the heating component and the aerosol generation matrix segment, and also beneficial to the reliability of the bonding between the matrix layer 711 and the substrate layer 712.

[0368] The matrix layer 711 includes a cast layer 7111 and aerosol-generated matrix particles 7113. The cast layer 7111 is formed by casting a cast slurry.

[0369] The cast layer 7111 covers at least a portion of the outer wall of the aerosol-generating matrix particles 7113.

[0370] This refers to the fact that at least a portion of all aerosol generating matrix particles 7113 are coated with the casting layer 7111, and based on any one of these aerosol generating matrix particles 7113, the outer wall of that aerosol generating matrix particle 7113 may be completely coated with the casting layer 7111, or it may be only partially coated with the casting layer 7111.

[0371] The aerosol generating matrix particles 7113 can be heated and atomized to generate aerosols. Referring to Figure 23, the aerosol generating matrix particles 7113 can be spherical particles, elliptical particles, strip-shaped particles, polyhedral particles, irregular particles, etc.

[0372] It should be noted that under the action of the heating component, the cast layer 7111 may or may not generate aerosols.

[0373] In this embodiment of the aerosol generation matrix segment, aerosol generation matrix particles 7113 are covered on a substrate layer 712 by a casting layer 7111. This improves the adhesion strength of the aerosol generation matrix particles 7113 to the substrate layer 712, thereby mitigating the problem of aerosol generation matrix particles 7113 detaching and reducing the probability of aerosol generation matrix particles 7113 detaching from the heating zone, thus improving the stability of the suction effect of the aerosol generation product. Furthermore, one end of the aerosol generation matrix segment does not require sealing, thereby eliminating the sealing process, simplifying the production process of the aerosol generation matrix segment, and reducing its production cost.

[0374] The manner in which aerosol-generated matrix particles 7113 are disposed on the substrate layer 712 is not limited.

[0375] In some embodiments, referring to FIG20, aerosol generating matrix particles 7113 are laid on a substrate layer 712 to form a particle layer 7112, and a cast layer 7111 is disposed on the side of the substrate layer 712 where the particle layer 7112 is disposed, and the cast layer 7111 covers at least a portion of the particle layer 7112. Alternatively, the cast layer 7111 is disposed on one side of the substrate layer 712, and at least a portion of the aerosol generating matrix particles 7113 are embedded in the cast layer 7111.

[0376] Here, the aerosol generating matrix particles 7113 are first mixed evenly with the casting slurry to obtain a mixed slurry. Then, the mixed slurry is cast onto the substrate layer 712 using a casting process. The aerosol generating matrix particles 7113 are formed into the particle layer 7112, and the casting slurry is formed into the casting layer 7111. In this way, the aerosol generating matrix particles 7113 are relatively uniformly distributed within the casting layer 7111, and the casting slurry fills at least part of the gaps between the aerosol generating matrix particles 7113.

[0377] Specifically, please refer to Figure 20, where the cast layer 7111 completely covers the particle layer 7112.

[0378] Please refer to Figure 21. The cast layer 112 covers a portion of the particle layer 7112, while another portion protrudes from the cast layer 7111.

[0379] In this embodiment, the aerosol-generated matrix particles 7113 and the cast layer 7111 can be formed together on the substrate layer 712. This reduces the number of forming steps for the matrix layer 711 and helps to improve the production efficiency of the sheet matrix 710.

[0380] In other embodiments, please refer to FIG22, aerosol generating matrix particles 7113 are laid on the substrate layer 712 to form a particle layer 7112, and a cast layer 7111 is disposed on the side of the particle layer 7112 away from the substrate layer 712.

[0381] Here, aerosol generating matrix particles 7113 are first disposed on the substrate layer 712 by means of, for example, bonding, so that the aerosol generating matrix particles 7113 are formed into a particle layer 7112 on the substrate layer 712. Then, the casting paste is cast onto the particle layer 7112 to form a casting layer 7111. That is, the particle layer 7112 and the casting layer 7111 are completely separated into two layers.

[0382] In this embodiment, the thickness of the casting layer 7111 on the side of the aerosol generating matrix particles 7113 away from the substrate layer 712 is relatively large. That is, the casting layer 7111 has relatively good coating performance for the aerosol generating matrix particles 7113, which is beneficial to further improve the adhesion strength of the aerosol generating matrix particles 7113 on the substrate layer 712.

[0383] In some embodiments, the thickness of the cast layer 7111 is 0.3mm-2.5mm. For example, it can be 0.3mm, 0.4mm, 0.5mm, 0.6mm, 0.7mm, 0.8mm, 0.9mm, 1mm, 1.1mm, 1.2mm, 1.3mm, 1.4mm, 1.5mm, 1.6mm, 1.7mm, 1.8mm, 1.9mm, 2mm, 2.1mm, 2.2mm, 2.3mm, 2.4mm, 2.5mm, etc.

[0384] The thickness of the cast layer 7111 is shown as L1 in Figures 20 to 22. It can be understood that in the embodiments shown in Figures 20 and 21, the thickness of the cast layer 7111 is the thickness of the cast slurry after drying and setting; while in the embodiment shown in Figure 22, the sum of the thickness of the cast layer 7111 and the thickness of the particle layer 7112 is the thickness of the matrix layer 711.

[0385] In this embodiment, the casting layer 7111 has a relatively suitable thickness, which can better encapsulate the aerosol generation matrix particles 7113, thereby improving the adhesion strength of the aerosol generation matrix particles 7113 on the substrate layer 712.

[0386] In some embodiments, the particle size of the aerosol generating matrix particles 7113 is 0.5 mm to 2 mm. For example, it can be 0.5 mm, 0.6 mm, 0.7 mm, 0.8 mm, 0.9 mm, 1 mm, 1.1 mm, 1.2 mm, 1.3 mm, 1.4 mm, 1.5 mm, 1.6 mm, 1.7 mm, 1.8 mm, 1.9 mm, 2 mm, etc.

[0387] In this embodiment, the aerosol generating matrix particles 7113 have a small volume, which helps to increase the filling amount of aerosol generating matrix particles 7113 in the aerosol generating matrix segment, thereby improving the suction experience of the aerosol generating product.

[0388] In some embodiments, the cast layer 7111 comprises hydrophobic materials, smoke generators, broadleaf fibers, water, fragrances, and nicotine and / or cooling agents.

[0389] There are no restrictions on the type of smoke-generating agent. For example, smoke-generating agents include, but are not limited to, glycerin, propylene glycol, etc.

[0390] In other words, the casting paste is a mixture of hydrophobic materials, smoke generators, broadleaf fibers, water, flavorings, and nicotine and / or cooling agents.

[0391] The raw materials for the broadleaf fiber here include, but are not limited to, poplar, Eucalyptus grandis, and mulberry branches.

[0392] The broadleaf fibers here are an aqueous solution with a mass fraction of 2.5%.

[0393] The aerosol generating matrix particles 7113 can have a honeycomb structure. The honeycomb structure of the aerosol generating matrix particles 7113 facilitates the rapid release of smoke-generating agents and flavorings during inhalation.

[0394] The honeycomb-structured aerosol generating matrix particles 7113 have multiple pores, each pore forming an opening on the outer surface of the aerosol generating matrix particles 7113. Smoke generators, broad-leaved fibers, water, fragrances, nicotine, and / or cooling agents can enter into each pore, and hydrophobic materials can cover part of the pore openings.

[0395] It is understandable that the honeycomb pores of the aerosol generating matrix particles 7113 have a certain adsorption and condensation effect on the generated aerosols, which may cause problems such as decreased suction effect and increased suction resistance. However, in this embodiment of the present disclosure, by covering the aerosol generating matrix particles 7113 with a cast layer 7111, the cast layer 7111 can close some of the pores, thereby helping to reduce the adsorption and condensation effect of the honeycomb pores on the aerosols.

[0396] Hydrophobic materials are a class of materials that repel water. They can be natural or synthetic, and there are no restrictions on which type they are.

[0397] Smoke generators, broadleaf fibers, water, fragrances, and nicotine and / or cooling agents can enter the honeycomb pores, while hydrophobic materials seal off some of the pore openings.

[0398] Smoke-generating agents are the smoke-generating components in the aerosol-generating matrix. However, smoke-generating agents can migrate to other parts of the product during its shelf life, along with dissolved flavorings and other ingredients, which can reduce the product's vaping quality. Smoke-generating agents are also highly hygroscopic; absorbing moisture can lead to mold growth and other problems during the product's shelf life. Therefore, most products currently contain smoke-generating agents at a content of approximately 15% to 25% by weight, which reduces the vaping experience.

[0399] In this embodiment, the casting paste also includes smoke generators, fragrances and other components, which helps to increase the overall loading of smoke generators, fragrances and other components on the matrix layer 711, thereby ensuring the inhalation experience of the aerosol-generated product.

[0400] In addition, the cast layer 7111 also includes hydrophobic materials. These hydrophobic materials can seal the openings of some of the pores in the aerosol generating matrix particles 7113, restricting the movement of water vapor between the external environment and the honeycomb pores. This reduces the probability of water vapor from the external environment entering the honeycomb pores and causing the smoke generator to become damp and moldy, and / or restricts the volatilization of flavorings and other components from the honeycomb pores to the external environment, thereby improving the smoking experience.

[0401] The hydrophobic material also has a certain degree of adhesion, which makes it easy to adhere to the aerosol generation matrix particles 7113. At the same time, the hydrophobic material does not produce an unpleasant odor when heated.

[0402] In some embodiments, the hydrophobic material includes at least one of honeysuckle, mulberry leaf, chrysanthemum, dandelion, kudzu root, ophiopogon japonicus, almond, hyacinth bean, and lycium bark.

[0403] Such hydrophobic materials are natural materials and readily available, which can further reduce the preparation cost of aerosol generating matrix particles 7113 and further reduce the possibility that aerosol generating matrix particles 7113 will produce unpleasant odors and / or harmful gases when heated.

[0404] In some embodiments, the aerosol generating matrix particles 7113 are composed of a main raw material, a porous material, a smoke generator, a flavoring agent, water, and nicotine and / or a cooling agent, wherein the main raw material comprises protein powder, starch, and fiber.

[0405] When protein powder is heated, it can generate amino acids. These amino acids react with reducing sugars to produce a series of volatile aroma substances that are beneficial to improving the quality of vaping.

[0406] Starch can be converted into small-molecule carbohydrates, which participate in regulating the acid-base balance of flue gas and play an important role in the smoothness and aroma of flue gas.

[0407] The fiber has good filtration properties and can remove some harmful substances from the flue gas.

[0408] Porous materials serve as the main carriers for aerosol generation matrix particles 7113, thereby loading main raw materials, smoke generators, flavorings, water, nicotine, and / or cooling agents.

[0409] It should be noted that in this embodiment, the particle size of the porous material is basically equal to the particle size of the aerosol generating matrix particles 7113.

[0410] The main raw materials can be one or more of the following: wheat flour, rice flour, corn flour, soybean flour, potato flour, buckwheat flour, bellflower powder, isatis root powder, almond powder, kudzu root powder, pea flour, sweet potato flour, ophiopogon japonicus powder, cassava flour, etc., or include protein powder, starch and fiber separated from these raw materials.

[0411] There are no restrictions on the raw materials for porous materials.

[0412] In some embodiments, the porous material includes at least one of the following: rush pith, bamboo fungus, freeze-dried plants, and foamed plants.

[0413] As an example, the freeze-dried plants here can be freeze-dried fruits, vegetables, etc., and the foamed plants can be foamed bamboo. It should be noted that since the aerosol generating matrix particles 7113 require heating during actual use, to minimize unpleasant odors generated during heating, when selecting vegetables and fruits as porous materials, varieties with lower sugar content should be chosen whenever possible. It should also be noted that the aroma carried by some plants (such as bamboo) may be unnecessary for the actual extraction of aerosol generating matrix particles 7113; therefore, when selecting such varieties as porous materials, deodorization treatment can be performed on them.

[0414] In this embodiment, the porous material is selected from natural plants. Compared with artificially synthesized porous materials, it can further reduce the preparation cost of aerosol generation matrix particles 7113 on the one hand, and reduce the possibility that aerosol generation matrix particles 7113 will produce unpleasant odors and / or harmful gases when heated on the other hand.

[0415] Third Implementation Method

[0416] The third embodiment of this disclosure provides an aerosol generating article, comprising: an aerosol generating matrix segment according to the first or second embodiment of this disclosure; a functional segment disposed at one end of the aerosol generating matrix segment, the functional segment including a cooling segment and a filtration segment, the cooling segment being located between the filtration segment and the aerosol generating matrix segment; and an outer wrapping layer wrapped around the outer periphery of the functional segment and the aerosol generating matrix segment.

[0417] In some embodiments, the aerosol generating article further includes a breathable plugging element disposed at at least one end of the aerosol generating matrix section.

[0418] The technical details of aerosol-generated products can be found in the relevant sections above, and will not be repeated here.

[0419] Fourth Implementation Method

[0420] The fourth embodiment of this disclosure provides an aerosol generating matrix sheet, comprising a base layer and a particle layer stacked together. The particle layer includes aerosol generating matrix particles, which are laid on the base layer. The thickness of the particle layer is greater than or equal to the thickness of the base layer, and / or the air permeability of the particle layer is greater than the air permeability of the base layer, and / or the particle layer is at least partially embedded in the base layer.

[0421] The specific technical details of the aerosol generation matrix sheet in this embodiment can be found in the description of the sheet matrix in the first embodiment of this disclosure. In other words, the aerosol generation matrix sheet in this embodiment can be the sheet matrix described in any embodiment of the first embodiment of this disclosure, and will not be repeated here.

[0422] Fifth Implementation Method

[0423] The fifth embodiment of this disclosure provides an aerosol generating matrix sheet, including a substrate layer and a matrix layer stacked together. The matrix layer can be heated and atomized to generate aerosol. The matrix layer includes a cast layer and aerosol generating particles. The cast layer is constructed by casting a cast slurry, and the cast layer covers at least a portion of the outer sidewall of the aerosol generating particles.

[0424] The specific technical details of the aerosol generation matrix sheet in this embodiment can be found in the description of the sheet matrix in the second embodiment of this disclosure. In other words, the aerosol generation matrix sheet in this embodiment can be the sheet matrix described in any embodiment of the second embodiment of this disclosure, and will not be repeated here.

[0425] Sixth Implementation Method

[0426] The sixth embodiment of this disclosure provides an aerosol generation matrix particle that can be used as the aerosol generation matrix particle as described in any of the preceding embodiments.

[0427] Referring to Figures 18 and 19, the aerosol generating matrix particles include substrate particles 211, a smoke-generating medium 222 and / or a fragrance-enhancing medium 224, and a hydrophobic structure 223.

[0428] The substrate particle 211 has a plurality of receiving holes 2211, at least some of which form openings 11a on the outer surface of the substrate particle 211. The receiving holes 2211 can be through holes or blind holes, or part of them can be through holes and part of them can be blind holes, without limitation.

[0429] As an example, the substrate particles 211 can be obtained from porous materials through processes such as cutting, shaping, and sieving. The porous material here can be a natural porous material, that is, a structure with multiple pores that has not undergone artificial processing or has minimal artificial processing, such as rush pith or bamboo fungus. Alternatively, the porous material can be a material formed from natural materials through processes such as foaming, such as foamed bamboo. Or, the porous material can be a synthetic material. This embodiment does not impose any limitations on this.

[0430] The specific shape and size of the substrate particles 211 are not limited. For example, the substrate particles 211 can be spherical particles, strip particles, polyhedral particles, irregular particles, etc.

[0431] Smoke-generating medium 222 and / or flavoring medium 224 are disposed within receiving hole 2211. Smoke-generating medium 222 here includes, but is not limited to, glycerin, and flavoring medium 224 here includes, but is not limited to, flavorings, nicotine preparations, cooling agents, etc.

[0432] In this embodiment, the receiving hole 2211 may contain only the smoke-generating medium 222. In this case, the aerosol generating matrix particles can be used in conjunction with other aerosol generating matrices or other structures (such as popping beads) that have aroma-enhancing functions. Alternatively, the receiving hole 2211 may contain only the aroma-enhancing medium 224. In this case, the aerosol generating matrix particles can be used in conjunction with other aerosol generating matrices or other structures that have smoke-generating functions. Of course, the receiving hole 2211 often contains both the smoke-generating medium 222 and the aroma-enhancing medium 224 simultaneously.

[0433] The hydrophobic structure 223 is disposed on the outside of the substrate particles 211 and at least partially covers the opening 11a of the receiving hole 2211. The hydrophobic structure 223 here specifically refers to a structure formed by preparing a hydrophobic material. A hydrophobic material is a type of material that repels water. The hydrophobic material can be a natural hydrophobic material or an artificially synthesized hydrophobic material, and there is no limitation on this.

[0434] In this embodiment, the hydrophobic structure 223 may cover only a portion of the opening 11a of the receiving hole 2211, or it may cover all the openings 11a of the receiving hole 2211. Furthermore, for a single receiving hole 2211, the shielding structure may completely cover the opening 11a of the receiving hole 2211, or it may only cover a portion of the opening 11a of the receiving hole 2211.

[0435] The specific structural form of the hydrophobic structure 223 is not limited. For example, the hydrophobic structure 223 can be a relatively dense coating structure or a relatively sparse particle structure. The hydrophobic structure 223 can adhere to the outer surface of the substrate particles 211 by its own physical properties or by means of an adhesive.

[0436] As mentioned above, in related technologies, problems such as dampness and mold growth of the smoke-generating medium and / or volatilization of the aroma-enhancing medium may occur during the storage of the aerosol generating matrix, resulting in a poor suction experience when the aerosol generating matrix is ​​actually used.

[0437] In this embodiment, the smoke-generating medium 222 and / or the flavoring medium 224 are disposed in the receiving hole 2211 of the substrate particles 211, and a hydrophobic structure 223 is used to at least partially cover the opening 11a of the receiving hole 2211. The hydrophobic structure 223 can restrict the movement of water vapor between the external environment and the receiving hole 2211, thereby reducing the probability that water vapor in the external environment will enter the receiving hole 2211 and cause the smoke-generating medium 222 to become damp and moldy, and / or restricting the evaporation of the flavoring medium 224 in the receiving hole 2211 to the external environment, thereby improving the smoking experience.

[0438] On the other hand, in this embodiment, the porous structure of the substrate particles 211 enables it to have a high loading capacity for the smoke-generating medium 222 and / or the aroma-enhancing medium 224 (taking rush as an example, it can adsorb 3-15 times its own weight of the smoke-generating medium 222 and / or the aroma-enhancing medium 224), thereby increasing the amount of smoke and / or the aroma during the inhalation process, thus improving the inhalation experience.

[0439] On the other hand, in this embodiment, the receiving pores 2211 of the substrate particles 211 have a certain adsorption force for the smoke-generating medium 222 and / or the aroma-enhancing medium 224, and the hydrophobic structure 223 also has a certain blocking force. When the aerosol generating matrix particles are actually heated, as the substrate particles 211 heat up, the smoke-generating medium 222 and / or the aroma-enhancing medium 224 will continuously migrate towards the opening 11a of the receiving pores 2211. The traction force of heat conduction competes with the adsorption force of the substrate particles 211 themselves and the blocking force of the hydrophobic structure 223. By controlling this competitive relationship, the gradual release of smoke and aroma can be achieved, thereby increasing the number of puffs and the consistency of each puff, and thus improving the vaping experience. As an example, this competitive relationship can be adjusted by adjusting the material of the substrate particles 211 (the adsorption capacity of substrate particles 211 of different materials is different), the structural form and number of the hydrophobic structure 223, and the heating intensity during actual use.

[0440] In summary, the aerosol-generating matrix particles of this embodiment can increase the loading of the smoke-generating medium 222 and / or the aroma-enhancing medium 224, reduce the probability of the smoke-generating medium 222 becoming damp and moldy during storage and / or limit the volatilization of the aroma-enhancing medium 224 to the outside during storage, and can achieve the gradual release of smoke and / or aroma, resulting in a better smoking experience.

[0441] The aerosol generating matrix particles of this embodiment can be applied to any suitable aerosol generating article. In some embodiments, the aerosol generating article refers to the aerosol generating matrix segment. In some embodiments, the aerosol generating article refers to a cigarette structure including an aerosol generating matrix segment and a functional segment.

[0442] Taking the application of aerosol generating matrix particles in aerosol generating matrix segments as an example, aerosol generating matrix particles can be directly filled into packaging paper to form aerosol generating matrix segments. Alternatively, aerosol generating matrix particles can be filled into packaging paper together with other structural forms of aerosol generating matrix (such as aerosol generating matrix fragments or aerosol generating matrix strips) to form aerosol generating matrix segments. Or, aerosol generating matrix particles can be adsorbed onto one or both surfaces of an aerosol generating sheet, and then rolled up to form an aerosol generating matrix segment.

[0443] In some embodiments, the maximum diameter of the substrate particle 211 is 1-5 mm, such as 1 mm, 1.5 mm, 2 mm, 2.5 mm, 3 mm, 3.5 mm, 4 mm, 4.5 mm, 5 mm, etc. Specifically, the maximum diameter refers to the maximum straight-line distance between any two points on the outer surface of the substrate particle 211. In other words, the maximum diameter refers to the diameter of the circumscribed sphere of the substrate particle 211. For example, if the substrate particle 211 is a spherical particle, the maximum diameter is the maximum diameter of the substrate particle 211; if the substrate particle 211 is a cylindrical particle, the maximum diameter is the axial length of the cylindrical particle or the maximum diameter of its radial cross-section.

[0444] In this embodiment, the aerosol generating matrix particles have a small volume, which helps to increase the filling amount when the aerosol generating matrix particles are actually applied to aerosol generating products, thereby improving the suction experience of aerosol generating products.

[0445] In some embodiments, the substrate particles 211 are formed by cutting a porous material. This reduces the difficulty of preparing the substrate particles 211, thereby reducing the preparation cost of aerosol-generated matrix particles.

[0446] In some embodiments, the porous materials include rush, bamboo fungus, freeze-dried plants, and foamed plants. For example, freeze-dried plants can be freeze-dried fruits, vegetables, etc., and foamed plants can be foamed bamboo. It should be noted that since the aerosol generating matrix particles require heating during actual use, to minimize unpleasant odors generated during heating, when selecting vegetables and fruits as porous materials, varieties with lower sugar content should be chosen whenever possible. It should also be noted that the aroma of some plants (such as bamboo) may be unnecessary for the actual aerosol generating matrix particles during absorption; therefore, when selecting such varieties as porous materials, deodorization treatment can be performed on them.

[0447] In this embodiment, the porous material is selected from natural plants. Compared with artificially synthesized porous materials, it can further reduce the preparation cost of aerosol generation matrix particles and reduce the possibility that aerosol generation matrix particles will produce unpleasant odors and / or harmful gases when heated.

[0448] In some embodiments, referring to FIG18, the hydrophobic structure 223 includes hydrophobic powder 2231, which is attached to the outer surface of the substrate particles 211. The hydrophobic powder 2231 here may be formed by crushing the hydrophobic material mentioned above. More specifically, the hydrophobic material may be crushed and sieved through a sieve with a mesh size greater than or equal to 100 to obtain the hydrophobic powder 2231, such as by sieving through a sieve with a mesh size of 100-160.

[0449] In this embodiment, during the actual preparation process, the substrate particles 211 adsorbed with the smoke-generating medium 222 and / or the aroma-enhancing medium 224 can be directly placed into the hydrophobic powder 2231 and stirred, so that the hydrophobic powder 2231 adheres to the outer surface of the substrate particles 211 to form a powder-coated hydrophobic structure 223. In this way, the preparation cost of aerosol-generating matrix particles can be further reduced.

[0450] In some embodiments, the hydrophobic powder 2231 is formed by pulverizing hydrophobic herbal materials. These hydrophobic herbal materials include, but are not limited to, rush, lemongrass, rosemary, and corn silk.

[0451] In this embodiment, natural hydrophobic herbal materials are used to prepare hydrophobic powder 2231. Compared with using synthetic hydrophobic materials, this further reduces the preparation cost of aerosol-generating matrix particles and further reduces the possibility of unpleasant odors and / or harmful gases being generated by the aerosol-generating matrix particles when heated. Similarly, in some embodiments, the hydrophobic herbal materials can also be deodorized to reduce the presence of unwanted fragrances.

[0452] In some embodiments, the hydrophobic powder 2231 is coated with a smoke-generating medium 222 and / or a fragrance-enhancing medium 224. The coating of the hydrophobic powder 2231 with the smoke-generating medium 222 and / or the fragrance-enhancing medium 224 helps to further increase the loading of aerosol-generating matrix particles. Furthermore, the smoke-generating medium 222 and / or the fragrance-enhancing medium 224 typically contain surface-active ingredients, thus contributing to improved adhesion between the hydrophobic powder 2231 and the substrate particles 211.

[0453] In some embodiments, referring to FIG19, the hydrophobic structure 223 includes a hydrophobic coating 2232 coated on the outer surface of the substrate particles 211. Compared with the hydrophobic powder 2231 mentioned above, the structure of the hydrophobic coating 2232 is relatively more dense. As an example, in the actual preparation process, the hydrophobic material can be prepared into a slurry, the slurry can be coated on the outer surface of the substrate particles 211 and dried to form the hydrophobic coating 2232.

[0454] In this embodiment, a hydrophobic coating 2232 is used to form a hydrophobic structure 223, which can further improve the water vapor isolation effect of the hydrophobic coating 2232, thereby improving the suction experience.

[0455] In some embodiments, the hydrophobic coating 2232 includes hydrophobic plant powder and broadleaf plant fiber. The water-carrying plant powder mainly provides a hydrophobic effect, while the broadleaf plant fiber can provide some support for the water-carrying herbaceous material powder, so that the two can form a relatively dense hydrophobic coating 2232 when combined.

[0456] The types of hydrophobic plants mentioned above can include the hydrophobic herbaceous materials mentioned above, or other types of hydrophobic plants, such as honeysuckle, mulberry leaves, chrysanthemum, dandelion, kudzu root, ophiopogon japonicus, almond, hyacinth bean, and lycium bark.

[0457] The particle size of the hydrophobic plant powder here can be the same as or different from that of the hydrophobic powder 2231 mentioned above. For example, the hydrophobic powder 2231 mentioned above can be a powder obtained by crushing hydrophobic herbaceous material and sieving it through a sieve with a mesh size of 100 or larger, such as powder sieved through a 100-160 mesh sieve. The hydrophobic plant powder here can be a powder obtained by crushing hydrophobic plants and sieving them through a sieve with a mesh size of 160 or larger, such as powder sieved through a 160-200 mesh sieve.

[0458] The broad-leaved plants here include, but are not limited to, poplar, eucalyptus, and mulberry branches.

[0459] In this embodiment, hydrophobic plant powder and broad-leaved plant fiber are used to form the hydrophobic coating 2232. That is, natural plant materials are selected as the whole to form the hydrophobic coating 2232. In this way, the preparation cost of aerosol generating matrix particles can be further reduced, and the possibility of aerosol generating matrix particles producing unpleasant odors and / or harmful gases when heated can be further reduced.

[0460] In some embodiments, the thickness of the hydrophobic coating 2232 is 0.3-1.2 mm. More specifically, the thickness of the hydrophobic coating 2232 can be 0.5-1 mm, such as 0.5 mm, 0.55 mm, 0.6 mm, 0.65 mm, 0.7 mm, 0.75 mm, 0.8 mm, 0.85 mm, 0.9 mm, 0.95 mm, 1 mm, etc. In some embodiments, the ratio of the maximum diameter of the substrate particles 211 to the thickness of the hydrophobic coating 2 is 1:10-1:2.

[0461] The use of the above-mentioned thickness of hydrophobic coating 2232 can achieve a better effect of blocking water vapor, and can also make the smoke-generating medium and / or aroma-enhancing medium volatilize better from the receiving hole when heated.

[0462] In some embodiments, the hydrophobic coating 2232 includes a smoke-generating medium 222 and / or a fragrance-enhancing medium 224, which helps to further increase the loading of aerosol-generating matrix particles. In this embodiment, the inclusion of a smoke-generating medium 222 and / or a fragrance-enhancing medium 224 in the hydrophobic coating 2232 can be achieved by adding a smoke-generating medium 222 and / or a fragrance-enhancing medium 224 to the slurry used to form the hydrophobic coating 2232.

[0463] Seventh Implementation Method

[0464] The seventh embodiment of this disclosure provides an aerosol generating matrix particle, comprising: a substrate particle having a plurality of accommodating pores, at least some of which form openings on the outer surface of the substrate particle; a slurry shell layer comprising a hydrophobic material, fibers, and a smoke-generating medium and / or a fragrance-enhancing medium; the slurry shell layer covering the outer surface of the substrate particle, at least some of which fill the accommodating pores, and at least some of which remain on the outer surface of the substrate particle to form a hydrophobic coating, the hydrophobic coating at least partially covering the openings of the accommodating pores.

[0465] For specific technical details regarding the structure of the aerosol-generating matrix particles in the seventh embodiment of this disclosure, please refer to the sixth embodiment of this disclosure, and they will not be repeated here.

[0466] Eighth Implementation Method

[0467] The eighth embodiment of this disclosure provides a method for preparing an aerosol generation matrix segment. Exemplarily, the method for preparing the aerosol generation matrix segment of this embodiment is used to prepare the aerosol generation matrix segment described in the first embodiment of this disclosure.

[0468] Referring to Figure 24, the method includes the following steps.

[0469] Step S201: Prepare aerosol generation matrix particles and slurry.

[0470] Step S202: Cast the slurry to form a matrix layer.

[0471] Step S203: Aerosol-generated matrix particles are laid on the top surface of the matrix layer to form a particle layer. The matrix layer and the particle layer together form a sheet-like matrix.

[0472] Step S204: Roll up the sheet-like matrix to form an aerosol matrix segment.

[0473] In step S201, the aerosol-generating matrix particles specifically refer to granular structures carrying a smoke-generating medium and / or a flavoring medium. The smoke-generating medium can generate aerosols when heated; for example, the smoke-generating medium includes, but is not limited to, glycerin. The flavoring medium can enhance the aroma and flavor of the aerosol; for example, the flavoring medium includes, but is not limited to, flavorings, nicotine preparations, cooling agents, etc. The slurry refers to a fluid dispersion system that can generate aerosols when heated. For example, the slurry includes water, a base material, and a smoke-generating medium. The main function of the base material is to enable the slurry to be cast into sheets. Those skilled in the art can select appropriate materials as base materials according to actual molding requirements, and there are no restrictions on this. The top surface of the matrix layer refers to one of the two relatively larger side surfaces of the matrix layer.

[0474] The specific preparation methods for aerosol generation matrix particles and slurries can be found in the relevant technologies in this field. The relevant sections below will also introduce the preparation methods for aerosol generation matrix particles and slurries in detail, and will not be repeated here.

[0475] In step S202, the slurry is cast to form a matrix layer. Casting here specifically refers to the process of laying a fluid slurry on the surface of an object (such as a conveyor belt, roller, steel plate, non-woven fabric, etc.), thereby allowing the slurry to spread and form a sheet-like structure.

[0476] In step S203, aerosol generating matrix particles are laid on the top surface of the matrix layer to form a particle layer. The matrix layer and the particle layer together form a sheet-like matrix. As an example, in this step, the aerosol generating matrix particles can be laid on the top surface of the matrix layer before the matrix layer is completely solidified. In this way, after the matrix layer solidifies, a certain adsorption force will be generated, causing the aerosol generating matrix particles to adhere to the top surface of the matrix layer. To increase the bonding force between the matrix particles and the matrix layer, pressure needs to be applied to the matrix particles so that the matrix particles are at least partially embedded in the matrix layer, for example, by rolling. Of course, in some other embodiments, other methods can also be used to achieve the relative fixation of the aerosol generating matrix particles between the matrix layer and the matrix layer. These methods will be described in detail in the relevant sections below.

[0477] The sheet-like matrix obtained in step S203 includes a matrix layer and a particle layer stacked together, with aerosol-generated matrix particles laid on the matrix layer to form the particle layer.

[0478] In step S204, the sheet-like matrix is ​​wound to form an aerosol generating matrix segment. In this embodiment, the specific direction of winding the sheet-like matrix is ​​not limited. For example, the sheet-like matrix can be wound in the forward direction so that in the radial cross-section of the aerosol generating matrix segment, the particle layer is located inside the matrix layer (towards the center of the cross-section). Alternatively, referring to Figures 4 and 6, the sheet-like matrix can also be wound in the reverse direction so that in the radial cross-section of the aerosol generating matrix segment, the particle layer is located outside the matrix layer (away from the center of the cross-section). It should be noted that "forward" and "reverse" here refer to any direction that can achieve the corresponding winding effect.

[0479] There is no limit to the specific number of layers of the sheet-like matrix.

[0480] For example, the sheet-like matrix can be wound into a single layer, meaning that there is no overlapping area of ​​the sheet-like matrix along the circumference of the aerosol-generating matrix segment. Of course, there can be overlapping areas at the connection between the first and last ends of the sheet-like matrix to improve the reliability of the connection. Setting the number of winding layers of the sheet-like matrix to a single layer is beneficial for improving heating efficiency, increasing smoke volume, and ensuring good consistency in taste.

[0481] For example, in embodiments where the number of winding layers of the sheet-like matrix is ​​a single layer, the thickness of the matrix layer can be reduced, and the particle size of the aerosol-generating matrix particles can be increased. Heating efficiency can be improved through peripheral heating. Furthermore, stable air channels can be formed within the sheet-like matrix, and the porosity between large particles is relatively large, thereby improving the stability of suction resistance.

[0482] Alternatively, the sheet-like matrix may have multiple winding layers. In this embodiment, "multiple layers" refers to two or more layers. Here, the number of winding layers of the sheet-like matrix can be, for example, 2, 3, 4, 5, 6, 7, 8, or more. Preferably, a winding layer count of 3 turns or less is optimal, achieving a suitable balance between the matrix layer thickness, matrix particle size, and porosity, resulting in a large smoke volume, good flavor consistency, and stable draw resistance. Exemplarily, in embodiments where the sheet-like matrix has multiple winding layers, the thickness of the matrix layers can be reduced, and the particle size of the aerosol-generating matrix particles can be decreased, making it suitable for different heating methods. In this embodiment, by setting the number of winding layers of the sheet-like matrix to multiple layers, a stable airflow channel can be formed between adjacent layers, thereby improving the stability of draw resistance. However, too many winding layers will reduce the smoke volume, make the matrix particles smaller and reduce the load, greatly affecting the smoke volume and consistency.

[0483] The sheet-like matrix can be directly wound to form aerosol generation matrix segments, or it can be cut into aerosol generation matrix segments of appropriate size according to actual usage requirements after winding, without any restrictions.

[0484] In related technologies, the matrix units of the aerosol generation matrix segment are mainly in the form of flakes, filaments, and granules. In related technologies where the matrix units are granular, the matrix units are filled through a filling process, which has the problem of unstable suction resistance. Furthermore, the vibration and other effects during the transportation and storage of granular matrix units can cause the granular matrix units in local areas of the aerosol generation matrix segment to become increasingly compact, resulting in greater suction resistance and a poor suction experience.

[0485] In the preparation method of the aerosol generation matrix segment in this embodiment, aerosol generation matrix particles are laid on a matrix layer and then wound to form the aerosol generation matrix segment. By adjusting the particle size and distribution density of the aerosol generation matrix particles, a stable air passage can be formed, thereby improving the stability of the suction resistance.

[0486] Here, aerosol generating matrix particles are laid on the matrix layer, which allows for control over the distribution of aerosol generating matrix particles. This helps reduce displacement caused by factors such as vibration during transportation, storage, or use, thereby further improving the stability of the suction resistance.

[0487] In some embodiments, step S202, forming a matrix layer by casting the slurry, specifically includes casting the slurry onto the top surface of the substrate layer to form the matrix layer. In this embodiment, the substrate layer, the matrix layer, and the particle layer are collectively formed into a sheet-like matrix.

[0488] In this embodiment, the substrate layer supports the matrix layer within the sheet-like matrix. This helps to further improve the flexibility and structural strength of the sheet-like matrix, reduces the requirements for casting quality, increases the porosity of the sheet-like matrix, increases the amount of smoke, and facilitates subsequent winding and cutting, reducing media loss and improving yield.

[0489] In this embodiment, the substrate layer specifically refers to a thin sheet-like structure that can support the matrix layer, and the specific material of the substrate layer is not limited.

[0490] As an example, the thickness of the substrate layer can be 0.008-0.02 mm, such as 0.008 mm, 0.01 mm, 0.012 mm, 0.014 mm, 0.016 mm, 0.018 mm, 0.02 mm, etc. The thickness of the matrix layer can be 0.5-0.75 mm, such as 0.5 mm, 0.52 mm, 0.54 mm, 0.56 mm, 0.58 mm, 0.6 mm, 0.62 mm, 0.64 mm, 0.66 mm, 0.68 mm, 0.7 mm, 0.72 mm, 0.74 mm, 0.75 mm, etc. Taking the substrate layer material as non-woven fabric as an example, the weight ratio of the substrate layer to the matrix layer is 1:8-1:10, such as 1:8, 1:8.5, 1:9, 1:9.5, 1:10, etc. Using the above parameters for casting helps to improve the coupling between the matrix layer and the substrate layer, and improve the utilization rate of the medium.

[0491] In some embodiments, the substrate layer is made of plant fiber fabric, nonwoven fabric, or metal foil (such as copper foil or aluminum foil). Using nonwoven fabric as the substrate layer material results in higher porosity and better adsorption of the slurry. Using metal foil as the substrate layer material helps to further improve the structural strength of the sheet-like matrix, and because metal foil has good thermal conductivity, it helps to increase the smoke generation rate of the aerosol-generating product.

[0492] Taking metal foil as an example, the thickness of the substrate layer can be 0.01 to 0.015 mm, such as 0.01 mm, 0.011 mm, 0.012 mm, 0.013 mm, 0.014 mm, 0.015 mm, etc.

[0493] In some embodiments, after aerosol-generating matrix particles are laid on the top surface of the matrix layer to form a particle layer, the method further includes: coating a slurry onto the top surface of the particle layer to form a coating layer. In this embodiment, the matrix layer, particle layer, and coating layer are collectively formed into a sheet-like matrix.

[0494] In the aerosol generation matrix segment prepared in this embodiment, a coating layer is formed on top of the granular matrix, which further helps to improve the problem of aerosol generation matrix particles falling off the granular layer. In addition, the coating layer is formed by coating the surface of the granular layer with a slurry, so that the coating layer can be heated and atomized to generate aerosol. This helps to increase the amount of smoke in large-aperture puffs, making the smoke burst fast, the smoke volume large, and the consistency good throughout the entire puffing process. In addition, the coating layer includes hydrophobic particles, which can prevent the loss of the glycerol and other loads of the granular matrix during the shelf life.

[0495] In some other embodiments, after aerosol-generating matrix particles are laid on the top surface of the matrix layer to form a particle layer, the method further includes laying a coating layer on the top surface of the particle layer. In this embodiment, the matrix layer, particle layer, and coating layer together form a sheet-like matrix.

[0496] In the aerosol generation matrix segment prepared in this embodiment, by setting a coating layer on the top surface of the particle layer, it is further beneficial to improve the problem of aerosol generation matrix particle detachment. In addition, during the winding process of the sheet matrix, the coating layer can also provide a certain support, thereby improving the roundness and production efficiency of the aerosol generation matrix segment.

[0497] In some embodiments, the slurry may be applied to the top surface of the particle layer to form a coating layer first, and then the overlay layer may be laid on the top surface of the coating layer. Alternatively, the overlay layer may be laid on the top surface of the particle layer first, and then the slurry may be applied to the top surface of the overlay layer to form a coating layer.

[0498] In some embodiments, the covering layer is made of plant fiber fabric, non-woven fabric, or metal foil. Non-woven fabric can carry fragrance and increase breathability; furthermore, it provides cushioning and elasticity, facilitating the fit between the heating component and the aerosol generation matrix section of the aerosol-generating product. Exemplarily, the non-woven fabric weighs 12g-20g. Metal foil facilitates heat transfer, thereby improving atomization efficiency and rapid smoke extraction, thus enhancing the vaping experience. Exemplarily, the metal foil thickness is 0.01mm-0.015mm.

[0499] As mentioned above, the substrate layer can also be made of plant fiber fabric, non-woven fabric or metal foil. In embodiments where both a substrate layer and a covering layer are provided, the materials of the substrate layer and the covering layer can be the same or different. When the materials of the substrate layer and the covering layer are the same, the thickness and / or weight of the substrate layer and the covering layer can be the same or different.

[0500] In some embodiments, forming a particle layer by laying aerosol generating matrix particles on the top surface of a matrix layer includes: uniformly dispersing the aerosol generating matrix particles on the top surface of the matrix layer to form a particle layer. In this embodiment, it helps to improve the filling rate of the aerosol generating matrix particles, thereby increasing the amount of smoke and the number of inhalation ports during inhalation.

[0501] In some embodiments, forming a particle layer by depositing aerosol generating matrix particles on the top surface of a matrix layer includes: depositing aerosol generating matrix particles on the top surface of the matrix layer, such that the particle layer forms particle regions and particle-free regions spaced apart along the winding direction of the sheet-like matrix, with the aerosol generating matrix particles distributed in the particle regions. It is understood that the winding direction here is perpendicular to the thickness direction of the sheet-like matrix.

[0502] In this embodiment, by setting granular regions and non-granular regions at intervals along the winding direction of the sheet-like matrix, a stable air passage can be formed in the non-granular region, thereby improving the stability of the suction resistance. Meanwhile, the aerosol generation matrix particles in the granular region can be heated and atomized to generate aerosols.

[0503] In some embodiments, forming a particle layer by laying aerosol generating matrix particles on the top surface of a matrix layer includes: laying aerosol generating matrix particles on the top surface of a matrix layer, such that the particle layer forms a plurality of sub-particle regions distributed along the winding direction of the sheet-like matrix, wherein the distribution density of aerosol generating matrix particles in at least some of the sub-particle regions is different from the distribution density of aerosol generating matrix particles in other sub-particle regions.

[0504] It's understandable that in the initial stages of inhalation, areas with relatively low density can generate a larger volume of vapor more quickly, resulting in sufficient aerosol production in the aerosol-generating matrix section. Conversely, in the later stages of inhalation, areas with relatively high density decrease in density after the initial inhalation, allowing for the rapid generation of a larger volume of vapor again. Therefore, by configuring the particle layer to include multiple sub-particle regions with varying densities, the aerosol release can be kept roughly consistent across the initial, middle, and later stages of inhalation, thus improving inhalation consistency and ultimately enhancing the inhalation experience.

[0505] In this embodiment, the specific distribution of each sub-particle region is not limited. Taking a sheet-like matrix wound into multiple layers as an example, from the outermost layer to the innermost layer of the aerosol generation matrix segment, the distribution density of aerosol generation matrix particles can gradually increase, gradually decrease, increase first and then decrease, or decrease first and then increase.

[0506] In some embodiments, forming a particle layer by laying aerosol generating matrix particles on the top surface of a matrix layer includes: laying aerosol generating matrix particles on the top surface of a matrix layer, so that the particle layer forms a plurality of sub-particle layers stacked together, wherein the distribution density of aerosol generating matrix particles in at least some of the sub-particle layers is different from the distribution density of aerosol generating matrix particles in other sub-particle layers.

[0507] Similarly, in this embodiment, by setting the particle layer to include multiple sub-particle layers with different distribution densities, the amount of aerosol released can be kept roughly consistent in the early, middle and late stages of suction, that is, the consistency of suction can be improved, thereby improving the suction experience.

[0508] In this embodiment, the specific distribution of each sub-particle layer is not limited. For example, along the direction away from the matrix layer, the distribution density of aerosol-generated matrix particles in each sub-particle layer can gradually decrease, gradually increase, increase first and then decrease, or decrease first and then increase.

[0509] In some embodiments, preparing aerosol generating matrix particles includes preparing a variety of aerosol generating matrix particles with different particle sizes. Laying the aerosol generating matrix particles on the top surface of the matrix layer to form a particle layer includes: dispersing a variety of aerosol generating particles with different particle sizes on the top surface of the matrix layer, so that the particle layer forms a plurality of sub-particle layers stacked together, wherein the particle size of the aerosol generating matrix particles in at least some of the sub-particle layers is different from the particle size of the aerosol generating matrix particles in other sub-particle layers.

[0510] It is understandable that aerosol generating matrix particles of different sizes carry different amounts of smoke-generating media (effective substances such as glycerol), thus resulting in different aerosol generation rates. In this embodiment, the particle layer comprises multiple stacked sub-particle layers, and the particle layer includes aerosol generating matrix particles of different sizes. This allows for rapid smoke generation, ensuring a large initial smoke volume, and maintaining a layered flavor profile or consistent smoke volume as the heating process progresses.

[0511] In this embodiment, the distribution of each sub-particle layer is not limited. For example, along the direction away from the matrix layer, the particle size of the aerosol-generated matrix particles in each sub-particle layer can gradually decrease, gradually increase, increase first and then decrease, or decrease first and then increase.

[0512] In some embodiments, preparing aerosol generating matrix particles includes preparing a variety of aerosol generating matrix particles with different particle sizes. Laying the aerosol generating matrix particles on the top surface of the matrix layer to form a particle layer includes: laying a variety of aerosol generating matrix particles with different particle sizes on the top surface of the matrix layer, so that the particle layer forms a plurality of sub-particle regions distributed along the winding direction of the sheet-like matrix, wherein the particle size of the aerosol generating matrix particles in at least some of the sub-particle regions is different from the particle size of the aerosol generating matrix particles in other sub-particle regions.

[0513] Similarly, in this embodiment, the particle layer includes multiple sub-particle regions distributed along the winding direction of the sheet-like matrix, and the particle layer includes aerosol-generating matrix particles of different particle sizes, which can quickly produce smoke, ensure a large initial smoke volume, and ensure the layering of taste or the consistency of smoke volume as the heating process progresses.

[0514] In this embodiment, the specific distribution of each sub-particle region is not limited. Taking a sheet-like matrix wound into multiple layers as an example, from the outermost layer to the innermost layer of the aerosol generation matrix segment, the particle size of the aerosol generation matrix particles can gradually increase, gradually decrease, increase first and then decrease, or decrease first and then increase.

[0515] In some embodiments, preparing aerosol generating matrix particles includes preparing a variety of aerosol generating matrix particles with different smoke-generating medium loadings. Laying the aerosol generating matrix particles on the top surface of the matrix layer to form a particle layer includes: laying a variety of aerosol generating matrix particles with different smoke-generating medium loadings on the top surface of the matrix layer, so that the particle layer forms a plurality of sub-particle layers stacked together, wherein the smoke-generating medium loading of the aerosol generating matrix particles in at least some of the sub-particle layers is different from the smoke-generating medium loading of the aerosol generating matrix particles in other sub-particle layers.

[0516] It is understandable that a lower loading of the smoke-generating medium in aerosol-generating matrix particles results in a lower specific heat capacity, which is conducive to rapid smoke generation. Conversely, a higher loading of the smoke-generating medium in aerosol-generating matrix particles helps maintain a certain amount of smoke during the mid-stage of inhalation. In this embodiment, the particle layer comprises multiple stacked sub-particle layers, and the particle layer includes aerosol-generating matrix particles with different loadings of smoke-generating medium. This allows for rapid smoke generation, ensuring a large initial smoke volume, and maintaining a layered flavor profile or consistent smoke volume as the heating process progresses.

[0517] In this embodiment, the specific distribution of each sub-particle layer is not limited. For example, along the direction away from the matrix layer, the smoke-generating medium loading of the aerosol-generating matrix particles in each sub-particle layer can gradually decrease, gradually increase, increase first and then decrease, or decrease first and then increase.

[0518] In some embodiments, preparing aerosol generating matrix particles includes preparing a variety of aerosol generating matrix particles with different smoke-generating medium loadings. Laying the aerosol generating matrix particles on the top surface of the matrix layer to form a particle layer includes: laying a variety of aerosol generating matrix particles with different smoke-generating medium loadings on the top surface of the matrix layer, so that the particle layer forms a plurality of sub-particle regions distributed along the winding direction of the sheet-like matrix, wherein the smoke-generating medium loading of the aerosol generating matrix particles in at least some sub-particle regions is different from the smoke-generating medium loading of the aerosol generating matrix particles in other sub-particle regions.

[0519] Similarly, in this embodiment, the particle layer includes multiple sub-particle regions distributed along the winding direction of the sheet-like matrix, and the particle layer includes aerosol-generating matrix particles with different smoke-generating media loadings. This allows for rapid smoke generation, ensuring a large initial smoke volume, and maintaining a layered taste or consistent smoke volume as the heating process progresses.

[0520] In this embodiment, the specific distribution of each sub-particle region is not limited. Taking a sheet-like matrix wound into multiple layers as an example, from the outermost layer to the innermost layer of the aerosol generation matrix segment, the smoke-generating medium loading of the aerosol generation matrix particles can gradually increase, gradually decrease, increase first and then decrease, or decrease first and then increase.

[0521] In some embodiments, after the step of laying aerosol-generating matrix particles on the top surface of the matrix layer to form a particle layer, the method further includes: sequentially performing a first stage of heating, a second stage of heating, and a third stage of heating to shape the matrix layer and the particle layer into a sheet-like matrix, wherein the temperatures of the first stage of heating, the second stage of heating, and the third stage of heating increase sequentially.

[0522] In this embodiment, a three-stage heating method with progressively increasing temperatures is used to shape the matrix layer and substrate layer into a sheet-like matrix. This heating method helps to reduce the water content in the sheet-like matrix, thereby improving the suction experience of the aerosol generation matrix segment.

[0523] In this embodiment, the specific heating methods and temperatures for the first, second, and third stages of heating are not limited. As an example, all three stages of heating can be performed using hot air heating. This helps accelerate the evaporation of moisture from the matrix layer during the heating process, thereby further reducing the water content in the sheet-like matrix. Of course, at least one of the first, second, and third stages of heating can also be achieved using heating methods other than hot air heating. In an embodiment where all three stages of heating use hot air heating, the hot air temperature for the first stage can be 70-75°C, the hot air temperature for the second stage can be 75-80°C, and the hot air temperature for the third stage can be 90-95°C.

[0524] In some embodiments, the method further includes drying the sheet matrix before winding it into an aerosol-generating matrix segment. In some of the above embodiments, a heat treatment was performed after the formation of the granular layer, primarily to set the matrix layer; of course, moisture evaporation also occurs during this process. In this embodiment, however, the drying treatment further reduces the moisture content of the sheet matrix after it has been set. In this embodiment, the specific drying process is not limited; as an example, drying can be performed at 105-110°C for 3-5 minutes.

[0525] Ninth Implementation Method

[0526] The ninth embodiment of this disclosure provides a method for preparing an aerosol generation matrix segment. By way of example, the method for preparing the aerosol generation matrix segment of this embodiment is used to prepare the aerosol generation matrix segment described in the second embodiment of this disclosure.

[0527] Please refer to Figure 25. The method includes the following steps:

[0528] S301: The cast paste and aerosol-generated matrix particles are set on the substrate layer.

[0529] S302: Dry the casting paste so that the casting paste and aerosol generate matrix particles that are formed on the substrate layer to form a matrix layer. The matrix layer and the substrate layer together constitute a sheet-like matrix.

[0530] S303: Wrap a sheet-like matrix to obtain an aerosol generation matrix segment.

[0531] Specifically, the sheet-like matrix can be cut into thin slices of varying widths from 1.5cm to 2.5cm, then rolled into columnar structures along different directions, and then cut into aerosol generation matrix segments of 12mm to 20mm in length.

[0532] When the substrate layer is made of metal foil (such as aluminum foil), the thickness of the substrate layer can be any value in the range of 0.01mm to 0.015mm.

[0533] When the substrate layer is made of non-woven fabric, the weight of the non-woven fabric can be any value between 12g and 50g.

[0534] In the preparation method of the aerosol generation matrix segment in this embodiment, the aerosol generation matrix particles are coated onto the substrate layer using a casting layer. This improves the adhesion strength of the aerosol generation matrix particles to the substrate layer, thereby mitigating the problem of particle detachment, reducing the likelihood of particles leaving the heating zone, and enhancing the stability of the suction effect of the aerosol generation product. Furthermore, one end of the aerosol generation matrix segment does not require sealing, thus eliminating the sealing process, simplifying the production process of the aerosol generation matrix segment, and reducing its production cost.

[0535] It should be noted that there are no restrictions on the specific method by which the cast paste and aerosol-generated matrix particles are set on the substrate layer.

[0536] In some embodiments, the casting paste and aerosol-generated matrix particles are disposed on the substrate layer, including:

[0537] Aerosol-generated matrix particles are laid on the substrate layer to form a particle layer;

[0538] The casting paste is cast onto the granular layer.

[0539] Here, aerosol generating matrix particles are first deposited onto a substrate layer using methods such as bonding, forming a particle layer on the substrate layer. Then, a casting slurry is cast onto the particle layer to form a cast layer. In other words, the particle layer and the cast layer are completely separated into two layers. Consequently, the thickness of the cast layer is relatively large on the side of the aerosol generating matrix particles facing away from the substrate layer. This means the cast layer has relatively good coating performance for the aerosol generating matrix particles, which helps to further improve the adhesion strength of the aerosol generating matrix particles on the substrate layer.

[0540] In other embodiments, the cast slurry and aerosol-generated matrix particles are disposed on the substrate layer, including:

[0541] The casting paste is cast onto the substrate layer;

[0542] Aerosol-generated matrix particles are pressurized and laid onto the cast slurry.

[0543] Here, the casting paste can be formed into a casting layer with a relatively uniform thickness on the substrate layer. By pressurizing the aerosol generation matrix particles, the aerosol generation matrix particles can be embedded into the casting paste from the side of the casting paste away from the substrate layer. In this way, the aerosol generation matrix particles can be relatively stably set on the substrate layer.

[0544] In some other embodiments, the cast slurry and aerosol-generated matrix particles are disposed on the substrate layer, including:

[0545] The aerosol matrix particles and the casting slurry are mixed to obtain a mixed slurry;

[0546] The mixed slurry is cast onto the substrate layer.

[0547] Here, the aerosol generating matrix particles are relatively uniformly distributed within the cast layer, and the cast slurry fills at least part of the gaps between the aerosol generating matrix particles. However, the side of the aerosol generating matrix particles that faces away from the substrate layer is still covered by the cast layer.

[0548] In this embodiment, the aerosol-generated matrix particles and the cast layer can be formed together on the substrate layer, thus reducing the number of forming steps for the matrix layer and improving the production efficiency of sheet-like matrix.

[0549] In some embodiments, drying the cast slurry includes:

[0550] The cast slurry is heated and dried sequentially using a first stage of hot air, a second stage of hot air, and a third stage of hot air, with the temperatures of the first stage of hot air, the second stage of hot air, and the third stage of hot air increasing in that order.

[0551] The casting paste is dried using a three-stage hot air heating process, which allows the casting paste to be shaped into a cast layer. The temperature of the first stage of hot air should not be too high to prevent the surface of the casting paste from forming a crust, which would hinder the outward diffusion of moisture from the inside of the casting paste.

[0552] After being heated and dried by three stages of hot air, the moisture content in the cast slurry can be reduced to less than or equal to 8%.

[0553] In this embodiment, the casting slurry is dried by heating it with three stages of hot air at progressively increasing temperatures. The resulting casting layer has a relatively low moisture content and better performance, which is beneficial for improving the suction experience of the aerosol generation matrix section.

[0554] In some embodiments, the temperature of the first stage of hot air is 70°C-75°C. For example, it can be 70°C, 71°C, 72°C, 73°C, 74°C, 75°C, etc. The first stage of hot air is relatively suitable within this temperature range, which helps to reduce the probability of crust formation on the surface of the cast slurry.

[0555] In some embodiments, the temperature of the second stage of hot air is 80°C-85°C. For example, it can be 80°C, 81°C, 82°C, 83°C, 84°C, 85°C, etc. Within this temperature range, the moisture inside the cast slurry can also be heated and dried, allowing it to diffuse outwards.

[0556] In some embodiments, the temperature of the third stage hot air is 95°C-98°C. For example, it can be 95°C, 96°C, 97°C, 98°C, etc. Within this temperature range, the third stage hot air is beneficial to reducing the overall moisture content of the cast slurry, and is beneficial to reducing the overall moisture content of the cast slurry to less than or equal to 8%.

[0557] In some embodiments, before depositing the cast slurry and aerosol-generated matrix particles onto the substrate layer, the method further includes:

[0558] Preparation of casting paste: Hydrophobic plant powder, smoking agent, broadleaf fiber, water, fragrance, and nicotine and / or cooling agent are mixed to obtain casting paste.

[0559] The hydrophobic plant powder here can be obtained by cutting the hydrophobic material mentioned above. Specifically, the hydrophobic material mentioned above is crushed and sieved through a sieve with a mesh size of 100 or larger to obtain the hydrophobic plant powder, such as powder sieved through a sieve with a mesh size of 160-200.

[0560] The aerosol generating matrix particles have a honeycomb structure. This honeycomb structure facilitates the rapid release of smoke-generating agents and flavorings during inhalation.

[0561] The honeycomb-structured aerosol generating matrix particles have multiple pores, each forming an opening on the outer surface of the aerosol generating matrix particles. Smoke generators, broad-leaved fibers, water, fragrances, nicotine, and / or cooling agents can enter into each pore. The hydrophobic plant powder is formed into a hydrophobic structure, which can cover part of the pore openings.

[0562] Smoke-generating agents, broad-leaved fibers, water, flavorings, and nicotine and / or cooling agents can enter the honeycomb pores, while the hydrophobic structure seals off some of the pore openings.

[0563] Smoke-generating agents are the smoke-generating components in the aerosol-generating matrix. However, smoke-generating agents can migrate to other parts of the product during its shelf life, along with dissolved flavorings and other ingredients, which can reduce the product's vaping quality. Smoke-generating agents are also highly hygroscopic; absorbing moisture can lead to mold growth and other problems during the product's shelf life. Therefore, most products currently contain smoke-generating agents at a content of approximately 15% to 25% by weight, which reduces the vaping experience.

[0564] In this embodiment, the cast slurry also includes smoke generators, fragrances and other components, which helps to increase the overall loading of the matrix layer with smoke generators, fragrances and other components, thereby ensuring the inhalation experience of the aerosol-generated product.

[0565] In addition, the cast paste also includes hydrophobic plant powder. After drying and molding, the hydrophobic plant powder forms a hydrophobic structure. The hydrophobic structure can seal the openings of some of the pores of the aerosol generating matrix particles, restricting the movement of water vapor between the external environment and the honeycomb pores. This reduces the probability of water vapor from the external environment entering the honeycomb pores and causing the smoke generator to become damp and moldy, and / or restricts the volatilization of fragrance and other components in the honeycomb pores to the external environment, thereby improving the smoking experience.

[0566] In some embodiments, the casting paste, by total weight, comprises:

[0567] 30-35 parts hydrophobic plant powder, 20-25 parts glycerin, 10-15 parts broadleaf fiber solution, 10-15 parts water, 15-30 parts fragrance, and 1-2 parts nicotine preparation and / or cooling agent, wherein the broadleaf fiber solution is an aqueous solution with a mass fraction of 2.5%.

[0568] In this embodiment, the proportions of the components in the cast slurry help to further improve the suction effect of the aerosol generation matrix segment.

[0569] In some embodiments, before depositing the cast slurry and aerosol-generated matrix particles onto the substrate layer, the method further includes:

[0570] Preparation of granulation raw materials: The main raw materials, base materials, smoke generators, flavorings, water, and nicotine and / or cooling agents are mixed to obtain granulation raw materials, wherein the main raw materials include protein powder, starch, and fiber;

[0571] Granulated raw materials are prepared into aerosols to generate matrix particles.

[0572] When protein powder is heated, it can generate amino acids. These amino acids react with reducing sugars to produce a series of volatile aroma substances that are beneficial to improving the quality of vaping.

[0573] Starch can be converted into small-molecule carbohydrates, which participate in regulating the acid-base balance of flue gas and play an important role in the smoothness and aroma of flue gas.

[0574] The fiber has good filtration properties and can remove some harmful substances from the flue gas.

[0575] The substrate serves as the main carrier for aerosol-generating matrix particles, thereby loading the main raw materials, smoke generators, flavorings, water, nicotine, and / or cooling agents.

[0576] It should be noted that in this embodiment, the particle size of the substrate is basically equal to the particle size of the aerosol-generated matrix particles.

[0577] The main raw materials can be one or more of the following: wheat flour, rice flour, corn flour, soybean flour, potato flour, buckwheat flour, bellflower powder, isatis root powder, almond powder, kudzu root powder, pea flour, sweet potato flour, ophiopogon japonicus powder, cassava flour, etc., or include protein powder, starch and fiber separated from these raw materials.

[0578] In some embodiments, the granulation raw materials, measured by total weight, include:

[0579] 50-70 parts main ingredient, 20-40 parts base material, 35-50 parts smoke generator, 20-30 parts flavoring, 15-25 parts water, and 2-3 parts nicotine and / or cooling agent.

[0580] In this embodiment, the proportions of each component of the granulation raw material help to further improve the suction effect of the aerosol-generated matrix particles.

[0581] In some embodiments, the method further includes, prior to preparing the granulation raw material:

[0582] The porous material is crushed and sieved through a 60-mesh sieve to obtain the substrate.

[0583] Here, the substrate has a porous structure, which allows for better adsorption of main raw materials, smoke generators, flavorings, water, nicotine and / or cooling agents, thereby improving the loading capacity of these components.

[0584] In some embodiments, the porous material includes at least one of rush pith, bamboo fungus, freeze-dried plants, and foamed plants.

[0585] As an example, the freeze-dried plants here can be freeze-dried fruits, vegetables, etc., and the foamed plants can be foamed bamboo. It should be noted that since the aerosol generating matrix particles require heating during actual use, to minimize unpleasant odors generated during heating, when selecting vegetables and fruits as porous materials, varieties with lower sugar content should be chosen whenever possible. It should also be noted that the natural aroma of some plants (such as bamboo) may be unnecessary for the actual aerosol generating matrix particles during extraction; therefore, when selecting such varieties as porous materials, deodorization treatment can be performed on them.

[0586] In this embodiment, the porous material is selected from natural plants. Compared with artificially synthesized porous materials, it can further reduce the preparation cost of aerosol generation matrix particles and reduce the possibility that aerosol generation matrix particles will produce unpleasant odors and / or harmful gases when heated.

[0587] The heating element heats the aerosol-generating matrix section, which then releases aerosols. The user draws in the aerosol in batches, meaning they draw in one breath of aerosol, stop drawing, and then draw in the next breath, repeating this process intermittently. The initial phase of aerosol generation refers to the initial period of use of the aerosol-generating matrix section; the first few draws correspond to this initial phase, such as draws 1-5. The later phase refers to the period when the aerosol generation matrix section is nearing complete aerosol release; the last few draws correspond to this later phase, such as the last 1-5 draws. The initial and later phases of aerosol generation refer to the early and late stages of the aerosol-generating matrix section's lifespan, respectively. The middle phase refers to the period between the initial and later phases of aerosol generation.

[0588] The aerosol generating matrix segment prepared by the preparation method of this embodiment has an average smoke amount of more than 4.0 mg / pom for the first 1 to 3 puffs, an average smoke amount of more than 5.5 mg / pom for the first 1 to 13 puffs, an effective utilization rate of VG / PG / NIC of more than 75%, and an RSD of less than 10% for the total smoke amount and total NIC release of the same number of puffs in different aerosol generating matrix segments.

[0589] It should be noted that PG stands for glycerol, VG for propylene glycol, and NIC for nicotine.

[0590] Tenth Implementation Method

[0591] The tenth embodiment of this disclosure provides a method for preparing aerosol-generating matrix particles, which, by way of example, is used to prepare aerosol-generating matrix particles as described in any of the disclosed embodiments.

[0592] Referring to Figure 26, the method includes the following steps.

[0593] Step S401: Prepare substrate particles. The substrate particles have multiple receiving holes, which form openings on the outer surface of the substrate particles.

[0594] Step S402: Allow the smoke-generating medium and / or aroma-enhancing medium to enter the pores of the substrate particles to obtain an adsorbent.

[0595] Step S403: The hydrophobic structure is disposed on the outside of the adsorbent, such that the hydrophobic structure at least partially covers the opening of the receiving pore, thereby obtaining aerosol generation matrix particles.

[0596] In the preparation method of aerosol generating matrix particles in this embodiment, a smoke-generating medium and / or a fragrance-enhancing medium are placed in the accommodating pores of the substrate particles, and a hydrophobic structure is used to at least partially cover the opening of the accommodating pores. The hydrophobic structure can restrict the movement of water vapor between the external environment and the accommodating pores, thereby reducing the probability of water vapor in the external environment entering the accommodating pores and causing the smoke-generating medium to become damp and moldy, and / or restricting the fragrance-enhancing medium in the accommodating pores from evaporating into the external environment, thereby improving the inhalation experience of the prepared aerosol generating matrix particles.

[0597] On the other hand, in this embodiment, the porous structure of the substrate particles allows them to have a high loading capacity for smoke-generating media and / or aroma-enhancing media, thereby increasing the amount of smoke and / or the aroma during the inhalation process, thus improving the inhalation experience of the aerosol-generating matrix particles.

[0598] On the other hand, in this embodiment, the pores of the substrate particles have a certain adsorption force for the smoke-generating medium and / or the aroma-enhancing medium, and the hydrophobic structure also has a certain blocking force. When the aerosol generating matrix particles are actually heated, as the substrate particles heat up, the smoke-generating medium and / or the aroma-enhancing medium will continuously migrate towards the opening of the pores. The traction force of heat conduction competes with the adsorption force of the substrate particles themselves and the blocking force of the hydrophobic structure. By controlling this competition, the gradual release of smoke and aroma can be achieved, thereby increasing the number of puffs and the consistency of each puff, and thus improving the puffing experience of the aerosol generating matrix particles.

[0599] In summary, the aerosol generating matrix particles prepared by the method of this embodiment can increase the loading of the smoke-generating medium and / or the aroma-enhancing medium, reduce the probability of the smoke-generating medium becoming damp and moldy during storage and / or limit the volatilization of the aroma-enhancing medium to the outside during storage, and can achieve the gradual release of smoke and / or aroma, resulting in a better smoking experience.

[0600] In this embodiment, in step S401, the substrate particles can be obtained by processing the porous material through methods such as cutting, shaping, and sieving. The porous material here can be a natural porous material, that is, a structure with multiple pores that has not undergone artificial processing or has minimal artificial processing, such as rush pith or bamboo fungus. Alternatively, the porous material can be a material formed from natural materials through foaming processes, such as foamed bamboo. Or, the porous material can be a synthetic material. This embodiment does not impose any limitations on this.

[0601] In step S402, the smoke-generating medium and / or flavoring medium can be mixed with the substrate particles to allow them to enter the pores and form an adsorbent. The smoke-generating medium here includes, but is not limited to, glycerin, and the flavoring medium here includes, but is not limited to, fragrances, nicotine preparations, cooling agents, etc.

[0602] In step S403, the adsorbent can be placed in hydrophobic powder, so that the hydrophobic powder adheres to the outer surface of the adsorbent to form a powder-coated hydrophobic structure. Alternatively, a hydrophobic coating can be applied to the surface of the adsorbent to form a coated hydrophobic structure. Or, any other suitable method can be used to form a hydrophobic structure, without limitation.

[0603] In some embodiments, the preparation of substrate particles in step S401 specifically includes: cutting porous material to form substrate particles. In this embodiment, the maximum diameter of the substrate particles can be 1-5 mm, such as 1 mm, 1.5 mm, 2 mm, 2.5 mm, 3 mm, 3.5 mm, 4 mm, 4.5 mm, 5 mm, etc. The aerosol generating matrix particles actually prepared in this embodiment have a small volume. When the aerosol generating matrix particles are actually applied to aerosol generating products, it helps to increase the filling amount, thereby improving the suction experience of the aerosol generating products.

[0604] It should be noted that in this embodiment, the maximum diameter of the multiple substrate particles formed by cutting the porous material can be substantially the same, such as the difference in maximum diameter not exceeding 0.1mm, 0.2mm, 0.3mm, 0.4mm, 0.5mm, 0.8mm, 0.7mm, etc. Various types of porous materials can be selected to cut and form substrate particles. The maximum diameter range of substrate particles formed by cutting different porous materials can be the same or different (for example, the maximum diameter of substrate particles formed by cutting one porous material is 1-2mm, and the maximum diameter of substrate particles formed by cutting another porous material is 2-4mm), and there is no limitation in this regard.

[0605] In some embodiments, the porous material includes at least one of the following: rush pith, bamboo fungus, freeze-dried plants, and foamed plants. As an example, the freeze-dried plants can be freeze-dried fruits, vegetables, etc., and the foamed plants can be foamed bamboo. It should be noted that since the aerosol-generating matrix particles require heating during actual use, to minimize the generation of unpleasant odors during heating, when selecting vegetables and fruits as porous materials, varieties with lower sugar content should be chosen whenever possible.

[0606] In this embodiment, the porous material is selected from natural plants. Compared with artificially synthesized porous materials, it can further reduce the preparation cost of aerosol generation matrix particles and reduce the possibility that aerosol generation matrix particles will produce unpleasant odors and / or harmful gases when heated.

[0607] In some embodiments, the preparation of substrate particles in step S401 further includes: deodorizing the porous material. In this embodiment, the specific means of deodorizing the porous material are not limited, such as steaming, baking, washing, or using chemical methods to remove the fragrance. The deodorization treatment can be performed before or after cutting the porous material; there is no limitation on this.

[0608] In this embodiment, deodorizing the porous material can remove some of the fragrance carried by the porous material itself (such as bamboo), reducing the occurrence of fragrances that users do not want.

[0609] In some embodiments, the preparation of substrate particles in step S401 further includes: sieving the cut porous material.

[0610] In this embodiment, sieving the cut porous material helps improve the consistency of the prepared aerosol generation matrix particles, which helps improve the suction experience when the aerosol generation matrix particles are actually applied to aerosol generation products.

[0611] It should be noted that, as mentioned above, in step S401, a variety of different porous materials can be used to cut and form substrate particles. In this embodiment, different pore sizes of filter screens can be used to screen the materials after cutting different porous materials, or filter screens with the same pore size can be used.

[0612] In some embodiments, the preparation of substrate particles in step S401 further includes foaming the porous material. This can further increase the number and / or size of pores in the porous material, thereby enhancing the substrate particles' loading capacity for smoke-generating media and / or aroma-enhancing media.

[0613] In this embodiment, the specific process of foaming is not limited. As mentioned above, the porous material may include foamed plants. In this case, the foamed plants can be subjected to a second foaming process.

[0614] In some embodiments, step S402, which involves introducing the smoke-generating medium and / or the aroma-enhancing medium into the receiving pore to form an adsorbent, includes: mixing the substrate particles with the smoke-generating medium and / or the aroma-enhancing medium, and stirring under vacuum or pressure conditions to introduce the smoke-generating medium and / or the aroma-enhancing medium into the receiving pore.

[0615] In this embodiment, the mixture of substrate particles and smoke-generating medium and / or aroma-enhancing medium is stirred under vacuum or pressurized conditions. It can be understood that under vacuum or pressurized conditions, there is a pressure difference between the internal pressure of the accommodating pore and the external pressure. This helps to increase the amount of smoke-generating medium and / or aroma-enhancing medium adsorbed by the substrate particles, thereby helping to increase the amount of smoke and / or aroma intensity during the inhalation process.

[0616] In some embodiments, mixing the substrate particles with a smoke-generating medium and / or a flavoring medium and stirring under vacuum or pressure conditions includes: first mixing the substrate particles with the smoke-generating medium and stirring under vacuum conditions; and then mixing the flavoring medium with the substrate particles and stirring under vacuum or pressure conditions.

[0617] In this embodiment, the substrate particles are first made to adsorb the smoke-generating medium, and then the substrate particles are made to adsorb the aroma-enhancing medium. The advantage of this secondary adsorption method is that most of the aroma-enhancing medium will be located near the outlet of the receiving hole, forming another barrier between the smoke-generating medium and the moisture in the external environment. This can further reduce the possibility of the smoke-generating medium getting damp and moldy during storage and improve the smoking experience.

[0618] In some embodiments, step S402, which involves introducing the smoke-generating medium and / or aroma-enhancing medium into the accommodating pores to form an adsorbent, includes spraying the smoke-generating medium and / or aroma-enhancing medium onto the surface of the substrate particles in a spraying manner. This method helps to save on the amount of smoke-generating medium and / or aroma-enhancing medium used, thereby reducing preparation costs. Furthermore, it helps to ensure that each accommodating pore of the substrate particles has relatively sufficient contact with the smoke-generating medium and / or aroma-enhancing medium, further increasing the adsorption capacity.

[0619] In some embodiments, in step S402, the smoke-generating medium includes glycerin, the flavoring medium includes flavoring, and nicotine preparation and / or cooling agent, and mixing the substrate particles with the smoke-generating medium and / or flavoring medium includes: mixing 10-15 parts by weight with 40-60 parts of glycerin, 3-5 parts of flavoring, and 1-2 parts of nicotine preparation and / or cooling agent.

[0620] The medium and ratio used in this embodiment help to further improve the suction effect of aerosol-generating matrix particles.

[0621] As mentioned above, in some embodiments, the substrate particles can first adsorb the smoke-generating medium and then adsorb the flavoring medium. In this embodiment, 10-15 parts of substrate particles can be mixed with 40-60 parts of glycerin for the first adsorption. After the adsorption is completed, the material is mixed with 3-5 parts of flavoring and 1-2 parts of nicotine preparation and / or cooling agent for the second adsorption.

[0622] In some embodiments, stirring under vacuum conditions in step S402 includes stirring at a vacuum level of less than 0.1 MPa, with the vacuum being broken once every set time interval during stirring. For example, stirring can be performed at a vacuum level of 0.085-0.095 MPa. In this embodiment, there are no limitations on the stirring duration and the set time interval. For example, the stirring duration can be 20-30 minutes, the set time interval can be 2-10 minutes, and the vacuum is broken 2-15 times during stirring.

[0623] In this embodiment, the vacuum is broken once at set intervals during stirring. In this way, the pressure difference when the vacuum is broken can be used to force the fuming medium and / or the aroma-enhancing medium into the receiving hole, thereby further increasing the adsorption capacity.

[0624] As mentioned above, in some embodiments, the substrate particles can first adsorb the smoke-generating medium and then adsorb the aroma-enhancing medium. Each adsorption is carried out under vacuum conditions. In this embodiment, each stirring can be carried out in the manner described above. The stirring time and / or the number of vacuum breaks during the two adsorptions can be the same or different.

[0625] In some embodiments, step S403, setting the hydrophobic structure on the outside of the adsorbent, includes: preparing hydrophobic powder, mixing the hydrophobic powder with the adsorbent, and making the hydrophobic powder adhere to the outer surface of the adsorbent to form a hydrophobic structure.

[0626] It is understood that the pores contain the fuming medium and / or the aroma-enhancing medium, and there may be residual fuming medium and / or aroma-enhancing medium on the outer surface of the adsorbent. Therefore, when the hydrophobic powder is mixed with the adsorbent, it can come into contact with the fuming medium and / or the aroma-enhancing medium and generate interaction forces. These forces enable the hydrophobic powder to adhere to the outer surface of the adsorbent, thereby forming a hydrophobic structure.

[0627] In this embodiment, a hydrophobic structure is formed by attaching hydrophobic powder to the outer surface of the adsorbent. This method has the advantages of being simple to operate and low in cost. Furthermore, it eliminates the need for heat treatment to fix the hydrophobic structure relative to the adsorbent, thereby reducing the volatilization of the aroma-enhancing and / or smoke-generating media during operation. Of course, in some other embodiments, a hydrophobic slurry can also be prepared and coated onto the outer surface of the adsorbent to form a hydrophobic coating.

[0628] In some embodiments, the preparation of hydrophobic powder in step S403 includes: pulverizing hydrophobic herbal materials and sieving them through a sieve with a mesh size of 100 or larger to obtain hydrophobic powder.

[0629] The hydrophobic herbaceous materials used here include, but are not limited to, rush, lemongrass, rosemary, and corn silk.

[0630] In this embodiment, natural hydrophobic herbal materials are used to prepare hydrophobic powder. Compared with using artificially synthesized hydrophobic materials, this can further reduce the preparation cost of aerosol generating matrix particles and further reduce the possibility of unpleasant odors and / or harmful gases being generated by aerosol generating matrix particles when heated. Furthermore, in this embodiment, the hydrophobic powder is obtained by sieving through a sieve with a mesh size of 100 or larger, which helps to improve the uniformity of the hydrophobic powder particle size and the overall thickness of its hydrophobic structure is more uniform.

[0631] In some embodiments, mixing the hydrophobic powder with the adsorbent comprises mixing 1 part by weight of the adsorbent with 3-5 parts by weight of the hydrophobic powder. This ratio helps to ensure that the hydrophobic powder adheres relatively uniformly to the surface of the adsorbent, improving its isolation effect and thus enhancing the suction experience of the aerosol-generating matrix particles.

[0632] In some embodiments, before mixing the hydrophobic powder with the adsorbent, the method further includes: adsorbing a smoke-generating medium and / or a fragrance-enhancing medium onto the hydrophobic powder. This helps to further increase the loading of aerosol-generating matrix particles, and the smoke-generating medium and / or fragrance-enhancing medium typically contain surface-active ingredients, thus helping to improve the adhesion between the hydrophobic powder and the substrate particles.

[0633] In this embodiment, the hydrophobic powder can be made to adsorb the smoke-generating medium and / or the aroma-enhancing medium by immersing the hydrophobic powder in the smoke-generating medium and / or the aroma-enhancing medium, or by spraying the smoke-generating medium and / or the aroma-enhancing medium onto the outer surface of the hydrophobic powder.

[0634] The preparation method of aerosol-generating matrix particles mentioned above will be described in more detail below with reference to a specific embodiment.

[0635] To prepare substrate particles, porous materials are cut and sieved to obtain substrate particles with a maximum diameter of 1-5 mm. Porous materials include one or more of the following: rush pith, bamboo fungus, low-sugar freeze-dried fruit, low-sugar freeze-dried vegetables, and bamboo that has undergone foaming and deodorization treatment.

[0636] Take 10-15 parts by weight of granules and 40-60 parts of glycerin. Spray the glycerin onto the surface of the substrate granules. Stir under a vacuum of 0.085-0.095 MPa for 20-30 minutes. Break the vacuum every 2-10 minutes during stirring to obtain the material adsorbed once.

[0637] The material adsorbed in the first stage is mixed with 3-5 parts of fragrance (the solvent is mainly propylene glycol and a small amount of alcohol), 1-2 parts of nicotine preparation and / or cooling agent, and sprayed onto the surface of the substrate particles. The mixture is stirred under a vacuum of 0.085-0.095 MPa for 20-30 minutes, with the vacuum being broken every 2-10 minutes during stirring, to obtain the adsorbate for secondary adsorption.

[0638] Hydrophobic herbal materials are pulverized and sieved through a sieve with a mesh size of 100 or larger to obtain hydrophobic powder. Hydrophobic herbal materials include rush, lemongrass, rosemary, corn silk, etc.

[0639] By weight, 1 part of the adsorbent is mixed with 3-5 parts of hydrophobic powder, so that the hydrophobic powder adheres to the surface of the adsorbent to obtain aerosol generation matrix particles.

[0640] Experiments show that the aerosol generating matrix particles prepared using the method of this disclosure have a glycerol loading of over 70% (dry basis), a moisture gain of less than 8% during the shelf life, and a cost that is more than 35% lower than that of aerosol generating matrix sheets or particles in related technologies. Aerosol generating products prepared using these particles have more than 20 puffs, an average smoke volume of more than 5.5 mg / puff, and a puff-by-puff consistency RSD of less than 20%.

[0641] Eleventh Implementation Method

[0642] The eleventh embodiment of this disclosure provides a method for preparing aerosol-generating matrix particles, which, by way of example, is used to prepare aerosol-generating matrix particles as described in any of the disclosed embodiments.

[0643] Referring to Figure 26, the method includes the following steps.

[0644] Step S501: Prepare substrate particles, which have multiple receiving holes that form openings on the outer surface of the substrate particles.

[0645] Step S502: Prepare a slurry, which includes a hydrophobic material, a limiting agent, and a fuming medium and / or a flavoring medium.

[0646] Step S503: The slurry is coated on the outer surface of the substrate particles, so that at least a portion of the smoking medium and / or aroma-enhancing medium in the slurry enters the pores, and at least a portion of the hydrophobic powder and fiber remain on the outer surface of the substrate particles to form a hydrophobic coating. The hydrophobic coating at least partially covers the opening of the pores to obtain aerosol-generating matrix particles.

[0647] In step S501, the specific structure of the substrate particles is not limited. As an example, the substrate particles can be spherical particles, strip-shaped particles, polyhedral particles, irregular particles, etc. The receiving holes of the substrate particles can be through holes, blind holes, or a combination of through holes and blind holes; there are no restrictions on this.

[0648] The substrate particles can be obtained by processing the porous material through methods such as cutting, shaping, and sieving. The porous material here can be a natural porous material, that is, a material with multiple pores that has not undergone artificial processing or has minimal artificial processing, such as rush pith or bamboo fungus. Alternatively, the porous material can be a material formed from natural materials through foaming processes, such as foamed bamboo. Or, the porous material can be a synthetic material. This embodiment does not impose any limitations on this.

[0649] In step S502, the hydrophobic material can be a type of material that repels water; it can be a natural hydrophobic material or a synthetic hydrophobic material. The fiber can be a natural fiber or a synthetic fiber. The fuming medium can include, but is not limited to, glycerin. The flavoring medium can include, but is not limited to, fragrances, nicotine preparations, cooling agents, etc. A suitable solvent can be used to dissolve the above substances to form a slurry.

[0650] In this embodiment, the slurry may include only a smoke-generating medium and not a flavor-enhancing medium. In this case, the aerosol-generating matrix particles can be used in conjunction with other aerosol-generating matrices or other structures (such as popping beads) that have flavor-enhancing functions. Alternatively, the slurry may include only a flavor-enhancing medium and not a smoke-generating medium. In this case, the aerosol-generating matrix particles can be used in conjunction with other aerosol-generating matrices or other structures that have smoke-generating functions. Of course, the slurry can also contain both a smoke-generating medium and a flavor-enhancing medium simultaneously.

[0651] In step S503, the slurry is coated onto the outer surface of the substrate particles. It is understood that the smoking medium and / or aroma-enhancing medium themselves have good fluidity and small volume. Therefore, after the slurry is coated onto the outer surface of the substrate particles, at least a portion of the smoking medium and / or aroma-enhancing medium can flow into the receiving pores. On the other hand, the hydrophobic material and the limiting material themselves have large volume and poor fluidity. Therefore, at least a portion of the hydrophobic material and the limiting material can remain on the outer surface of the substrate particles and form a hydrophobic coating after drying.

[0652] Figure 2 shows the aerosol generating matrix particles prepared by the above method, which include substrate particles 1, smoke-generating medium 2 and / or aroma-enhancing medium 3, and hydrophobic coating 4. The substrate particles 1 have a plurality of receiving holes 11, the receiving holes 11 forming openings 11a on the outer surface of the substrate particles 1, the smoke-generating medium 2 and / or aroma-enhancing medium 3 being disposed within the receiving holes 11, and the hydrophobic coating 4 being located on the outer side of the substrate particles 1 and at least partially covering the openings 11a of the receiving holes 11.

[0653] As mentioned above, in related technologies, problems such as dampness and mold growth of the smoke-generating medium and / or volatilization of the aroma-enhancing medium may occur during the storage of the aerosol generating matrix, resulting in a poor suction experience when the aerosol generating matrix is ​​actually used.

[0654] In the method for preparing aerosol generating matrix particles according to the present disclosure, a smoke-generating medium and / or a flavoring medium are placed in the receiving pores of the substrate particles, and a hydrophobic coating is used to at least partially cover the opening of the receiving pores. The hydrophobic coating can restrict the movement of water vapor between the external environment and the receiving pores, thereby reducing the probability that water vapor in the external environment will enter the receiving pores and cause the smoke-generating medium to become damp and moldy, and / or restricting the flavoring medium in the receiving pores from evaporating into the external environment, thereby improving the inhalation experience of the prepared aerosol generating matrix particles.

[0655] On the other hand, in this embodiment, the porous structure of the substrate particles allows them to have a high loading capacity for the smoke-generating medium and / or the aroma-enhancing medium, thereby increasing the amount of smoke and / or the aroma during the inhalation process, thus improving the inhalation experience of the aerosol-generating matrix particles.

[0656] On the other hand, in this embodiment, the pores of the substrate particles have a certain adsorption force for the smoke-generating medium and / or the aroma-enhancing medium, and the hydrophobic coating also has a certain blocking force. When the aerosol generating matrix particles are actually heated, as the substrate particles heat up, the smoke-generating medium and / or the aroma-enhancing medium will continuously migrate towards the opening of the pores. The traction force of heat conduction competes with the adsorption force of the substrate particles themselves and the blocking force of the hydrophobic coating. By controlling this competition, the gradual release of smoke and aroma can be achieved, thereby increasing the number of puffs and the consistency of each puff, and thus improving the puffing experience of the aerosol generating matrix particles.

[0657] On the other hand, in this embodiment, simply coating the mixed slurry onto the outer surface of the substrate particles is sufficient to adsorb the smoke-generating medium and / or aroma-enhancing medium into the receiving pores and form a hydrophobic coating on the outer surface of the substrate particles, without the need for prior adsorption and subsequent coating of the hydrophobic coating. This process is simpler, more efficient, and less costly. Furthermore, it reduces the amount of smoke-generating medium and / or aroma-enhancing medium evaporating from the receiving pores during production, thereby further increasing the loading capacity of the prepared aerosol-generating matrix particles.

[0658] In summary, the preparation method of the aerosol generating matrix particles in this embodiment has a simple process and high production efficiency. The prepared aerosol generating matrix particles can increase the loading of the smoke-generating medium and / or the aroma-enhancing medium, reduce the probability of the smoke-generating medium becoming damp and moldy during storage and / or limit the volatilization of the aroma-enhancing medium to the outside during storage, and can achieve the gradual release of smoke and / or aroma, resulting in a better smoking experience.

[0659] The aerosol generating matrix particles prepared by the method of this embodiment can be applied to any suitable aerosol generating article. In some embodiments, the aerosol generating article refers to the aerosol generating matrix segment. In some embodiments, the aerosol generating article refers to a cigarette structure including an aerosol generating matrix segment and a functional segment.

[0660] Taking the application of aerosol generating matrix particles in aerosol generating matrix segments as an example, aerosol generating matrix particles can be directly filled into packaging paper to form aerosol generating matrix segments. Alternatively, aerosol generating matrix particles can be filled into packaging paper together with other structural forms of aerosol generating matrix (such as aerosol generating matrix fragments or aerosol generating matrix strips) to form aerosol generating matrix segments. Or, aerosol generating matrix particles can be adsorbed onto one or both surfaces of an aerosol generating sheet, and then rolled up to form an aerosol generating matrix segment.

[0661] In some embodiments, the preparation of substrate particles in step S501 specifically includes: cutting porous material into multiple substrate particles with a maximum diameter of 1-5 mm, such as 1 mm, 1.5 mm, 2 mm, 2.5 mm, 3 mm, 3.5 mm, 4 mm, 4.5 mm, 5 mm, etc. The aerosol generating matrix particles actually prepared in this embodiment have a small volume. When these aerosol generating matrix particles are actually applied to aerosol generating products, it helps to increase the filling volume, thereby improving the suction experience of the aerosol generating products.

[0662] The specific shape of the substrate particles is not limited; they can be spherical, strip-shaped, cylindrical, irregularly shaped, etc. The maximum diameter here specifically refers to the maximum distance between any two points on the outer surface of the substrate particle. In other words, the maximum diameter refers to the diameter of the circumscribed sphere of the substrate particle. For example, if the substrate particle is spherical, the maximum diameter is the maximum diameter of the substrate particle; if the substrate particle is cylindrical, the maximum diameter is the maximum diameter of the cylindrical particle's axial length and radial cross-section.

[0663] It should be noted that in this embodiment, the maximum diameter of the multiple substrate particles formed by cutting the porous material can be substantially the same, such as the difference in maximum diameter not exceeding 0.1mm, 0.2mm, 0.3mm, 0.4mm, 0.5mm, 0.8mm, 0.7mm, etc. Various types of porous materials can be selected to cut and form substrate particles. The maximum diameter range of substrate particles formed by cutting different porous materials can be the same or different (for example, the maximum diameter of substrate particles formed by cutting one porous material is 1-2mm, and the maximum diameter of substrate particles formed by cutting another porous material is 2-4mm), and there is no limitation in this regard.

[0664] In some embodiments, the porous material includes at least one of the following: rush pith, bamboo fungus, freeze-dried plants, and foamed plants. As an example, the freeze-dried plants can be freeze-dried fruits, vegetables, etc., and the foamed plants can be foamed bamboo. It should be noted that since the aerosol-generating matrix particles require heating during actual use, to minimize the generation of unpleasant odors during heating, when selecting vegetables and fruits as porous materials, varieties with lower sugar content should be chosen whenever possible.

[0665] In this embodiment, the porous material is selected from natural plants. Compared with artificially synthesized porous materials, it can further reduce the preparation cost of aerosol generation matrix particles and reduce the possibility that aerosol generation matrix particles will produce unpleasant odors and / or harmful gases when heated.

[0666] In some embodiments, the preparation of substrate particles in step S501 further includes: deodorizing the porous material. In this embodiment, the specific means of deodorizing the porous material are not limited, such as steaming, baking, washing, or using chemical methods to remove the fragrance. The deodorization treatment can be performed before or after cutting the porous material; there is no limitation on this.

[0667] In this embodiment, deodorizing the porous material can remove some of the fragrance carried by the porous material itself (such as bamboo), reducing the occurrence of fragrances that users do not want.

[0668] In some embodiments, the preparation of substrate particles in step S501 further includes: sieving the cut porous material.

[0669] In this embodiment, sieving the cut porous material helps improve the consistency of the prepared aerosol generation matrix particles, which helps improve the suction experience when the aerosol generation matrix particles are actually applied to aerosol generation products.

[0670] It should be noted that, as mentioned above, in step S501, a variety of different porous materials can be used to cut and form substrate particles. In this embodiment, different pore sizes of filter screens can be used to screen the materials after cutting different porous materials, or filter screens with the same pore size can be used.

[0671] In some embodiments, the hydrophobic material comprises hydrophobic plant powder. The hydrophobic plants herein may include, but are not limited to, honeysuckle, mulberry leaves, chrysanthemum, dandelion, kudzu root, ophiopogon japonicus, almond, hyacinth bean, and lycium bark.

[0672] It is understandable that hydrophobic plant powder is a natural plant material, which can further reduce the preparation cost of aerosol generation matrix particles and further reduce the possibility that aerosol generation matrix particles will produce unpleasant odors and / or harmful gases when heated. On the other hand, using powdered hydrophobic materials helps to appropriately improve the fluidity of the slurry, making it easier to coat it evenly on the outer surface of the substrate particles.

[0673] In some other embodiments, synthetically produced hydrophobic powders may also be used as hydrophobic materials.

[0674] In some embodiments, the fiber includes broadleaf fiber, and the broadleaf plants mentioned herein include, but are not limited to, poplar, Eucalyptus grandis, and mulberry branches.

[0675] It is understandable that broadleaf plant fibers are natural plant materials, which can further reduce the preparation cost of aerosol generation matrix particles and further reduce the possibility that aerosol generation matrix particles will produce unpleasant odors and / or harmful gases when heated.

[0676] In some embodiments, as mentioned above, the smoke-generating medium may include glycerin. The flavoring medium may include at least one of a flavoring agent, a nicotine preparation, and a cooling agent.

[0677] In some embodiments, the preparation of the slurry in step S502 specifically includes: mixing 30-35 parts by weight of hydrophobic plant powder, 55-60 parts of glycerin, 5-10 parts of broadleaf fiber solution, 10-15 parts of fragrance, and 1-2 parts of nicotine preparation and / or cooling agent to form a slurry, wherein the broadleaf fiber solution is an aqueous solution with a mass fraction of 2.5%.

[0678] In this embodiment, the slurry with the above-mentioned proportions has good fluidity, allowing it to be uniformly coated on the outer surface of the substrate particles and enabling the smoke-generating medium and aroma-enhancing medium to flow into the pores as much as possible, thereby increasing the loading of aerosol-generating matrix particles. It should be noted that any other suitable proportions can also be used to prepare the slurry.

[0679] In some embodiments, the preparation of slurry in step S502 further includes crushing the hydrophobic plants and sieving them through a 160-200 mesh sieve to obtain hydrophobic plant powder.

[0680] In this embodiment, the herbal powder obtained by sieving through a 160-200 mesh sieve has a more uniform particle size, which can further improve the fluidity of the slurry and the uniformity of the thickness of the final insulating coating.

[0681] In some embodiments, step S503, which involves coating the slurry onto the outer surface of the substrate particles, specifically includes coating the slurry onto the outer surface of the substrate particles under a vacuum of less than or equal to 0.1 MPa to form a coating with a thickness of 0.3-1.2 mm.

[0682] As an example, in this embodiment, the slurry can be coated onto the outer surface of the substrate particles under a vacuum of 0.085-0.095 MPa to form a coating with a thickness of 0.5-1 mm.

[0683] In this embodiment, the slurry is coated onto the outer surface of the substrate particles in a vacuum environment. Thus, during the coating process, the cavities will be under negative pressure, and the smoking medium and / or aroma-enhancing medium in the slurry can flow into the cavities more rapidly under pressure, thereby further increasing the medium loading of the aerosol-generating matrix particles.

[0684] In some embodiments, the method further includes drying the material after the slurry has been coated onto the outer surface of the substrate particles at a temperature of 85-120°C. As an example, in this embodiment, the drying process can be performed at a temperature of 105-110°C.

[0685] In this embodiment, the drying process accelerates the drying of the slurry, thereby accelerating the formation of the hydrophobic coating and reducing the possibility of the fuming medium and / or flavoring medium becoming damp or volatilizing before the hydrophobic coating forms. Furthermore, this temperature range itself does not cause the fuming medium to generate smoke, nor does it trigger a large-scale volatilization of the flavoring medium.

[0686] Of course, in some other embodiments, drying can be carried out at a low temperature (such as 0-20°C) or the material can be allowed to air dry naturally.

[0687] The preparation method of aerosol-generating matrix particles mentioned above will be described in more detail below with reference to a specific embodiment.

[0688] To prepare substrate particles, porous materials are cut and sieved to obtain substrate particles with a maximum diameter of 1-5 mm. Porous materials include one or more of the following: rush pith, bamboo fungus, low-sugar freeze-dried fruit, low-sugar freeze-dried vegetables, and bamboo that has undergone foaming and deodorization treatment.

[0689] Hydrophobic plants are pulverized and sieved through a 160-200 mesh sieve to obtain hydrophobic plant powder. The hydrophobic plants include at least one of honeysuckle, mulberry leaves, chrysanthemum, dandelion, kudzu root, ophiopogon japonicus, apricot kernel, hyacinth bean, and lycium bark.

[0690] Broadleaf plants were prepared into a 2.5% (w / w) aqueous solution of broadleaf fiber, including at least one of poplar, Eucalyptus grandis, and mulberry branches.

[0691] Prepare the slurry by weight of 30-35 parts hydrophobic plant powder, 55-60 parts glycerin, 5-10 parts broadleaf fiber solution, 10-15 parts fragrance, and 1-2 parts nicotine preparation and / or cooling agent. The solvent for the fragrance is mainly propylene glycol and a small amount of alcohol.

[0692] Under a vacuum of 0.085-0.095 MPa, the slurry is coated onto the outer surface of the substrate particles to form a coating with a thickness of 0.5-1 mm. The material is then dried at 105-110°C for 30-35 min, allowing at least a portion of the glycerin, fragrance, nicotine preparation and / or cooling agent to enter the pores of the substrate particles. At least a portion of the hydrophobic plant powder and broad-leaved fiber remain on the surface of the substrate particles to form a hydrophobic coating, thereby obtaining aerosol-generating matrix particles.

[0693] Experiments show that the aerosol generating matrix particles prepared using the method of this disclosure have a glycerol loading of over 55% (dry basis), a moisture gain of less than 5% during the shelf life, and a cost that is more than 20% lower than that of aerosol generating matrix sheets or particles in related technologies. Aerosol generating products prepared using these particles can have more than 20 puffs, an average smoke volume greater than 5.5 mg / puff, and a puff-by-puff consistency RSD of less than 20%.

[0694] In the description of this disclosure, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the embodiments of this disclosure. In this disclosure, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, those skilled in the art can combine different embodiments or examples described in this disclosure, as well as features of different embodiments or examples, without contradiction.

[0695] The above are merely preferred embodiments of this disclosure and are not intended to limit the scope of this disclosure. Various modifications and variations can be made to this disclosure by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this disclosure should be included within the scope of protection of this disclosure.

Claims

1. An aerosol generation matrix segment, the aerosol generation matrix segment comprising a sheet matrix and aerosol generation matrix particles, wherein the aerosol generation matrix particles are disposed on at least one side of the sheet matrix, the aerosol generation matrix segment being constructed as a wound structure formed by winding the sheet matrix, wherein the sheet matrix can be heated to generate aerosols.

2. The aerosol generation matrix segment according to claim 1, wherein, The sheet-like matrix includes a base layer and a particle layer stacked together. The particle layer includes aerosol-generating matrix particles, and at least a portion of the aerosol-generating matrix particles are laid on the base layer.

3. The aerosol generation matrix segment according to claim 2, wherein, The granular layer is provided on both sides of the base layer along the thickness direction of the sheet-like matrix.

4. The aerosol generation matrix segment according to claim 2 or 3, wherein, The sheet-like matrix further includes a coating layer, wherein at least one of the granular layers is provided with the coating layer on the side away from the substrate layer, and the coating layer includes nonwoven fabric and / or metal foil; and / or The sheet-like matrix further includes a coating layer, which is formed by coating the surface of the particle layer with a matrix slurry, and the coating layer can be heated to generate an aerosol.

5. The aerosol generation matrix segment according to claim 2, wherein, The base layer includes a substrate layer, which comprises plant fiber fabric, nonwoven fabric, and / or metal foil; and / or The base layer includes a matrix layer that can be heated to generate an aerosol; and / or The base layer includes a substrate layer and a matrix layer, the matrix layer being formed on the substrate layer, the substrate layer including plant fiber fabric, non-woven fabric and / or metal foil, and the matrix layer being capable of being heated to generate an aerosol.

6. The aerosol generation matrix segment according to claim 5, wherein, The matrix layer is formed by casting a matrix slurry, coating or spraying a matrix slurry, or impregnating a matrix slurry.

7. The aerosol generation matrix segment according to claim 2, wherein, The number of winding layers of the sheet-like matrix is ​​single or multiple; and / or The number of particle layers can be single or multiple.

8. The aerosol generation matrix segment according to claim 2, wherein, A single particle layer comprises multiple stacked sub-particle layers. At least some of the aerosol-generating matrix particles in the sub-particle layers have a different particle size than the aerosol-generating matrix particles in other sub-particle layers, and / or, The distribution density of aerosol-generating matrix particles in at least some of the sub-particle layers differs from the distribution density of aerosol-generating matrix particles in other sub-particle layers, and / or, The aerosol generating matrix particles are loaded with a smoke-generating medium, and the amount of smoke-generating medium loaded on the aerosol generating matrix particles of at least a portion of the sub-particle layers is different from the amount of smoke-generating medium loaded on the aerosol generating matrix particles of the other sub-particle layers.

9. The aerosol generation matrix segment according to claim 2, wherein, The particle layer includes a particle region with the aerosol generating matrix particles and a particle-free region without the aerosol generating matrix particles, and the particle region and the particle-free region are alternately arranged.

10. The aerosol generation matrix segment according to claim 2, wherein, The sheet-like matrix is ​​wound toward the surface of the granular layer; or, the sheet-like matrix is ​​wound toward the surface of the base layer that is not covered by the granular layer.

11. The aerosol generation matrix segment according to claim 2, wherein, The sheet-like matrix has a single winding layer, the granular layer is wound to form a cylindrical space, and the base layer is wrapped in the cylindrical space; or, the sheet-like matrix has more than one winding layer, and the base layer is sandwiched between adjacent granular layers and within the winding space of the innermost granular layer.

12. The aerosol generation matrix segment according to claim 2, wherein, The sheet-like matrix further includes receptors, which are deposited on the substrate layer; and / or, The aerosol generating matrix particles include a receptor and a smoke-generating medium, wherein the smoke-generating medium is loaded onto the receptor; and / or The sheet-like matrix also includes receptors, which are mixed in the granular layer.

13. The aerosol generation matrix segment according to claim 2, wherein, The thickness of the granular layer is greater than or equal to the thickness of the base layer, and / or the air permeability of the granular layer is greater than that of the base layer.

14. The aerosol generation matrix segment according to claim 2, wherein, The number of sheet-like substrates is multiple, and the multiple sheet-like substrates are stacked and then wound to form the aerosol generating matrix segment.

15. The aerosol generation matrix segment according to claim 14, wherein, The granular layers of two adjacent sheet-like matrices are arranged close to each other; or, The base layers of two adjacent sheet-like substrates are disposed close to each other; or, The base layer of one of two adjacent sheet-like matrices is positioned close to the granular layer of the other.

16. The aerosol generation matrix segment according to claim 2, wherein, At least a portion of the aerosol-generated matrix particles are embedded in the substrate layer; and / or, At least some of the adjacent aerosol-generating matrix particles are bonded together.

17. The aerosol generation matrix segment according to claim 1, wherein, The sheet-like matrix includes a substrate layer and a matrix layer stacked together. The matrix layer can be heated and atomized to generate an aerosol. The matrix layer includes a cast layer and aerosol generating particles. The cast layer is constructed by casting a cast slurry. The cast layer covers at least a portion of the outer sidewall of the aerosol generating particles.

18. The aerosol generation matrix segment according to claim 17, wherein, The aerosol-generated particles are laid on the substrate layer to form a particle layer, and the cast layer completely covers the particle layer; or... The aerosol-generated particles are laid on the substrate layer to form a particle layer, and the cast layer is disposed on the side of the substrate layer where the particle layer is disposed, and the cast layer covers at least a portion of the particle layer.

19. The aerosol generation matrix segment according to any one of claims 1-18, wherein, The sheet-like matrix has a single layer of winding, and the base layer is wound to form a cylindrical space. The aerosol-generating matrix particles are enclosed within the cylindrical space, or... The cylindrical space is filled with the aerosol generating matrix particles, and the outer surface of the base layer is covered with the aerosol generating matrix particles.

20. The aerosol generation matrix segment according to any one of claims 1-18, wherein, The sheet-like matrix has more than one winding layer, and the aerosol-generating matrix particles fill the winding space between adjacent base layers and within the innermost base layer.

21. The aerosol generation matrix segment according to claim 19 or 20, wherein, The aerosol generating matrix segment has an insertion space at its center, or the center of the aerosol generating matrix segment is not completely filled by the aerosol generating matrix particles.

22. The aerosol generation matrix segment according to claim 19, wherein, The density of the aerosol generating matrix particles enclosed in the cylindrical space is less than the density of the base layer, or the air permeability of the aerosol generating matrix particles enclosed in the cylindrical space is greater than the air permeability of the base layer, or the specific heat capacity of the aerosol generating matrix particles enclosed in the cylindrical space is less than the specific heat capacity of the base layer.

23. The aerosol generation matrix segment according to any one of claims 1-22, wherein, The aerosol generating matrix particles include substrate particles and a smoke-generating medium, wherein the smoke-generating medium is loaded onto the substrate particles.

24. The aerosol generation matrix segment according to claim 23, wherein, The substrate particles have multiple receiving holes, which form openings on the outer surface of the substrate particles, and the smoke-generating medium is disposed within the receiving holes; The aerosol-generating matrix particles also include a hydrophobic structure disposed on the outside of the matrix particles and at least partially covering the opening of the receiving hole.

25. The aerosol generation matrix segment according to claim 24, wherein, The hydrophobic structure includes hydrophobic powder, which is formed by pulverizing hydrophobic herbal materials. The hydrophobic powder adheres to the outer surface of the substrate particles, or... The hydrophobic structure includes a hydrophobic coating applied to the outer surface of the substrate particles.

26. An aerosol-generating article, comprising: The aerosol generation matrix segment according to any one of claims 1-25; A functional section is disposed at one end of the aerosol generating matrix section, the functional section including a cooling section and a filtration section, the cooling section being located between the filtration section and the aerosol generating matrix section; An outer wrapping layer is provided, which wraps around the outer periphery of the functional segment and the aerosol generating matrix segment.

27. The aerosol-generating article according to claim 26, wherein, The aerosol generating article further includes a breathable sealing element disposed at at least one end of the aerosol generating matrix section.

28. An aerosol generating matrix sheet, comprising a substrate layer and a particle layer stacked thereon, the particle layer comprising aerosol generating matrix particles, the aerosol generating matrix particles being disposed on the substrate layer; the thickness of the particle layer being greater than or equal to the thickness of the substrate layer, and / or... The air permeability of the granular layer is greater than that of the base layer, and / or, The granular layer is at least partially embedded in the base layer.

29. An aerosol generating matrix sheet, comprising a substrate layer and a matrix layer stacked thereon, wherein the matrix layer can be heated and atomized to generate an aerosol, wherein... The matrix layer includes a cast layer and aerosol generating particles. The cast layer is constructed by casting a cast slurry, and the cast layer covers at least a portion of the outer sidewall of the aerosol generating particles.

30. An aerosol-generating matrix particle, comprising: The substrate particle has a plurality of receiving holes, at least some of which form openings on the outer surface of the substrate particle; A smoke-generating medium and / or a flavor-enhancing medium are disposed within the receiving hole; as well as A hydrophobic structure is disposed on the outside of the substrate particles and at least partially covers the opening of the receiving hole.

31. The aerosol-generating matrix particles according to claim 30, wherein, The hydrophobic structure includes: Hydrophobic powder adheres to the outer surface of the substrate; or... The hydrophobic structure includes: A hydrophobic coating is applied to the outer surface of the substrate.

32. An aerosol-generating matrix particle, comprising: The substrate particle has a plurality of receiving holes, at least some of which form openings on the outer surface of the substrate particle; The slurry shell layer includes a hydrophobic material, fibers, and a smoke-generating medium and / or a flavoring medium; The slurry shell layer covers the outer surface of the substrate particles, at least a portion of the smoke-generating medium and / or the aroma-enhancing medium fills the receiving hole, and at least a portion of the hydrophobic material and the fiber remain on the outer surface of the substrate particles to form a hydrophobic coating, the hydrophobic coating at least partially covering the opening of the receiving hole.

33. A method for preparing an aerosol generation matrix segment, comprising: Preparation of aerosol-generating matrix particles and slurry; The slurry is cast to form a matrix layer; The aerosol-generated matrix particles are laid on the top surface of the matrix layer to form a particle layer, and the matrix layer and the particle layer together form a sheet-like matrix; The sheet-like matrix is ​​wound to form an aerosol-generating matrix segment.

34. The method according to claim 33, wherein, The step of casting the slurry to form the matrix layer includes: The slurry is cast onto the top surface of the substrate layer to form the matrix layer, and the substrate layer, the matrix layer, and the particle layer together form the sheet matrix.

35. The method according to claim 34, wherein, The substrate layer can be made of plant fiber fabric, non-woven fabric, or metal foil.

36. The method according to claim 33, wherein, After the aerosol-generating matrix particles are laid on the top surface of the matrix layer to form a particle layer, the method further includes: The slurry is coated onto the top surface of the particle layer to form a coating layer, and the matrix layer, the particle layer, and the coating layer together form the sheet-like matrix; or The coating layer is laid on the top surface of the particle layer, and the matrix layer, the particle layer and the coating layer together form the sheet-like matrix.

37. The method according to claim 36, wherein, The covering layer is made of plant fiber fabric, non-woven fabric, or metal foil.

38. The method according to claim 33, wherein, The step of laying the aerosol-generated matrix particles on the top surface of the matrix layer to form a particle layer includes: The aerosol-generating matrix particles are uniformly dispersed on the top surface of the matrix layer to form a particle layer; or... The aerosol generating matrix particles are laid on the top surface of the matrix layer, so that the particle layer forms particle regions and particle-free regions spaced apart along the winding direction of the sheet-like matrix, and the aerosol generating matrix particles are distributed in the particle regions; or The aerosol-generating matrix particles are deposited on the top surface of the matrix layer, forming multiple sub-particle regions distributed along the winding direction of the sheet-like matrix. The distribution density of the aerosol-generating matrix particles in at least some of these sub-particle regions differs from the distribution density in other sub-particle regions; or... The aerosol generating matrix particles are laid on the top surface of the matrix layer, so that the particle layer forms a plurality of sub-particle layers stacked together. The distribution density of the aerosol generating matrix particles in at least some of the sub-particle layers is different from the distribution density of the aerosol generating matrix particles in other sub-particle layers.

39. The method according to claim 33, wherein, The preparation of aerosol generating matrix particles includes the preparation of a variety of aerosol generating matrix particles with different particle sizes. The step of laying the aerosol generating matrix particles on the top surface of the matrix layer to form a particle layer includes: dispersing a variety of aerosol generating particles of different particle sizes on the top surface of the matrix layer, so that the particle layer forms multiple sub-particle layers stacked together, wherein the particle size of the aerosol generating matrix particles in at least some of the sub-particle layers is different from the particle size of the aerosol generating matrix particles in other sub-particle layers; or... The step of laying the aerosol generating matrix particles on the top surface of the matrix layer to form a particle layer includes: laying a variety of aerosol generating particles with different particle sizes on the top surface of the matrix layer, so that the particle layer forms a plurality of sub-particle regions distributed along the winding direction of the sheet-like matrix, wherein the particle size of the aerosol generating matrix particles in at least some of the sub-particle regions is different from the particle size of the aerosol generating matrix particles in other sub-particle regions.

40. The method according to claim 33, wherein, The preparation of aerosol generating matrix particles includes preparing a variety of aerosol generating matrix particles with different smoke-generating medium loadings. The step of laying the aerosol generating matrix particles on the top surface of the cast layer to form a particle layer includes: laying aerosol generating matrix particles with different smoke-generating media loadings on the top surface of the cast layer, so that the particle layer forms multiple sub-particle layers stacked together, wherein the smoke-generating media loading of the aerosol generating matrix particles in at least some of the sub-particle layers is different from the smoke-generating media loading of the aerosol generating matrix particles in other sub-particle layers; or... The step of laying the aerosol generating matrix particles on the top surface of the cast layer to form a particle layer includes: laying aerosol generating matrix particles with different smoke-generating media loadings on the top surface of the cast layer, so that the particle layer forms a plurality of sub-particle regions distributed along the winding direction of the sheet matrix, wherein the smoke-generating media loading of the aerosol generating matrix particles in at least some of the sub-particle regions is different from the smoke-generating media loading of the aerosol generating matrix particles in other sub-particle regions.

41. A method for preparing an aerosol generation matrix segment, comprising: The cast paste and aerosol-generated matrix particles are set on the substrate layer; The casting slurry is dried so that the casting slurry and the aerosol generate matrix particles to form a matrix layer on the substrate layer, and the matrix layer and the substrate layer together constitute a sheet matrix; The sheet-like matrix is ​​wound up to obtain the aerosol-generating matrix segment.

42. The method according to claim 41, wherein, The step of setting the cast slurry and aerosol-generated matrix particles on the substrate layer includes: The aerosol-generated matrix particles are laid on the substrate layer to form a particle layer. The cast slurry is cast onto the granular layer; or... The casting paste is cast onto the substrate layer. The aerosol-generated matrix particles are pressurized and laid onto the cast slurry.

43. The method according to claim 41, wherein, The step of setting the cast slurry and aerosol-generated matrix particles on the substrate layer includes: The aerosol matrix particles and the casting slurry are mixed to obtain a mixed slurry; The mixed slurry is cast onto the substrate layer.

44. A method for preparing aerosol-generating matrix particles, the method comprising: Prepare substrate particles, wherein the substrate particles have a plurality of receiving holes, and at least some of the receiving holes form openings on the outer surface of the substrate particles; A smoke-generating medium and / or an aroma-enhancing medium are introduced into the receiving hole to obtain an adsorbent; A hydrophobic structure is disposed on the outside of the adsorbent, such that the hydrophobic structure at least partially covers the opening of the receiving pore, thereby obtaining aerosol generation matrix particles.

45. A method for preparing aerosol-generating matrix particles, the method comprising: Prepare substrate particles, wherein the substrate particles have a plurality of receiving holes, and at least some of the receiving holes form openings on the outer surface of the substrate particles; Prepare a slurry, the slurry comprising a hydrophobic material, fibers, and a smoke-generating medium and / or a flavoring medium; The slurry is coated on the outer surface of the substrate particles, so that at least a portion of the smoke-generating medium and / or the aroma-enhancing medium in the slurry enters the receiving pore, and at least a portion of the hydrophobic material and the fiber remain on the outer surface of the substrate particles to form a hydrophobic coating, the hydrophobic coating at least partially covering the opening of the receiving pore, to obtain aerosol-generating matrix particles.

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