Aerosol-generating substrate segment, substrate sheet, and aerosol-generating article

Abstract

The embodiment of the invention discloses an aerosol generating substrate section, a substrate sheet and an aerosol generating product, the aerosol generating substrate section comprises a sheet-shaped substrate, the aerosol generating substrate section is of a winding structure formed by winding the sheet-shaped substrate, and the sheet-shaped substrate can be heated to generate aerosol. The flaky substrate comprises a substrate layer and particle layers which are stacked, and the particle layers are arranged on the two sides, in the thickness direction of the flaky substrate, of the substrate layer; the particle layer comprises aerosol-generating matrix particles, and the aerosol-generating matrix particles are laid on the substrate layer. According to the aerosol generation matrix section, a stable air channel can be formed, and the suction resistance stability is improved; displacement caused by factors such as vibration in the transportation, storage or use process can be reduced, and the stability of suction resistance can be further improved. And the particle layers are arranged on the two sides of the substrate layer in the thickness direction of the flaky substrate, so that the loading capacity of aerosol generation substrate particles is improved, and the smoke amount is increased.

Description

Aerosol generation matrix segments, matrix sheets and aerosol generation products Technical Field

[0001] This application relates to the field of smoke-generating products technology, and in particular to an aerosol generating matrix segment, an aerosol generating matrix sheet, and an aerosol generating product. Background Technology

[0002] 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.

[0003] 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

[0004] In view of this, the embodiments of this application aim to provide an aerosol generation matrix segment, an aerosol generation matrix sheet, and an aerosol generation article, which are intended to improve the stability of absorption resistance.

[0005] To achieve the above objectives, one embodiment of this application provides an aerosol generation matrix segment, which includes a sheet-like matrix. The aerosol generation matrix segment is constructed as a wound structure formed by winding the sheet-like matrix, and the sheet-like matrix can be heated to generate aerosols.

[0006] The sheet-like matrix includes a base layer and a granular layer stacked together. The granular layer is provided on both sides of the base layer along the thickness direction of the sheet-like matrix. The granular layer includes aerosol-generating matrix particles, and at least a portion of the aerosol-generating matrix particles are laid on the base layer.

[0007] In one embodiment, the base layer includes a substrate layer, which includes a nonwoven fabric and / or a metal foil.

[0008] In one embodiment, the base layer includes a matrix layer configured to be formed by casting a matrix slurry, the matrix layer being heatable to generate an aerosol; and / or,

[0009] The sheet-like matrix includes a coating layer, which is formed by coating the surface of the granular layer with a matrix slurry, and the coating layer can be heated to generate an aerosol.

[0010] In one embodiment, the thickness of the matrix layer is 0.2 mm to 1.5 mm; and / or,

[0011] The density of the matrix layer is 0.6 g / cm³. 3 -0.9g / cm 3 .

[0012] The density of the base layer is 0.5 g / cm³. 3 -1g / cm 3 .

[0013] In one embodiment, the base layer further includes a substrate layer, the substrate layer being constructed by casting a substrate slurry onto the substrate layer, the substrate layer comprising plant fiber fabric, nonwoven fabric and / or metal foil.

[0014] In one embodiment, the substrate layer is formed by casting the substrate layer on both sides along the thickness direction of the sheet-like matrix.

[0015] In one embodiment, the number of winding layers of the sheet-like substrate is a single layer or multiple layers.

[0016] In one embodiment, the sheet-like matrix is ​​wound into a circle, the base layer is wound into a cylindrical space, 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.

[0017] In one embodiment, at least some of the adjacent aerosol-generating matrix particles are bonded together.

[0018] In one embodiment, a single particle layer includes a plurality of stacked sub-particle layers, wherein the particle size of the aerosol-generating matrix particles in at least a portion of the sub-particle layers is different from the particle size of the aerosol-generating matrix particles in the other sub-particle layers.

[0019] In one embodiment, a single particle layer includes a plurality of stacked sub-particle layers, wherein the distribution density of the aerosol-generating matrix particles in at least a portion of the sub-particle layers is different from the distribution density of the aerosol-generating matrix particles in the other sub-particle layers.

[0020] In one embodiment, the aerosol generating matrix particles include substrate particles and a smoke-generating medium, wherein the smoke-generating medium is loaded onto the substrate particles.

[0021] In one embodiment, a single particle layer includes a plurality of stacked sub-particle layers, wherein the loading of the smoke-generating medium of the aerosol-generating matrix particles in at least a portion of the sub-particle layers is different from the loading of the smoke-generating medium of the aerosol-generating matrix particles in the other sub-particle layers.

[0022] In one embodiment, the loading of the smoke-generating medium is 3-20 times the weight of the substrate particles.

[0023] In one embodiment, the density of the aerosol-generating matrix particles is 0.1 g / cm³. 3 -0.15g / cm 3 .

[0024] In one embodiment, the substrate particles have a plurality of receiving holes, the receiving holes forming openings on the outer surface of the substrate particles, and the smoke-generating medium is disposed within the receiving holes;

[0025] 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.

[0026] In one embodiment, the maximum diameter of the substrate particles is 1-5 mm.

[0027] In one embodiment, the substrate particles are formed by cutting porous plant material.

[0028] In one embodiment, the porous plant material comprises at least one of the following:

[0029] Juncus effusus, bamboo fungus, freeze-dried plants, and plants that have undergone foaming treatment.

[0030] In one embodiment, the particle layer includes a particle region having the aerosol generating matrix particles and a particle-free region without the aerosol generating matrix particles; the particle region and the particle-free region are alternately arranged along the winding direction of the sheet-like matrix.

[0031] In one embodiment, 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 base layer, and the coating layer includes nonwoven fabric and / or metal foil.

[0032] Another aspect of this application provides an aerosol generating article, comprising:

[0033] The aforementioned aerosol generation matrix segment;

[0034] 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;

[0035] An outer wrapping layer is provided, which wraps around the outer periphery of the functional segment and the aerosol generating matrix segment.

[0036] In another aspect, this application provides an aerosol generating matrix sheet, which includes a base layer and a particle layer stacked together. The particle layer is disposed on both sides of the base layer along the thickness direction of the aerosol generating matrix sheet. 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. The aerosol generating matrix particles can be heated to generate aerosols.

[0037] The aerosol generating matrix section of this application embodiment is configured as a wound structure formed by winding a sheet-like matrix. The sheet-like matrix includes a base layer and a granular layer stacked together. By laying aerosol generating matrix particles on the base layer to form a granular layer, and by adjusting the particle size and distribution density of the aerosol generating matrix particles on the base layer, a stable airway can be formed, thereby improving the stability of the draw resistance. Furthermore, after the aerosol generating matrix particles are laid on the base layer, 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 draw resistance. In addition, by providing granular layers on both sides of the base layer along the thickness direction of the sheet-like matrix, it is beneficial to increase the loading capacity of the aerosol generating matrix particles, thereby improving the smoke output. Attached Figure Description

[0038] Figure 1 is a schematic diagram of the sheet-like matrix of the first embodiment of this application;

[0039] Figure 2 is a cross-sectional view along the AA direction in Figure 1;

[0040] Figure 3 is a cross-sectional view of the sheet-like matrix of the second embodiment of this application, and the cross-sectional direction is the same as that of Figure 2;

[0041] Figure 4 is a cross-sectional view of the sheet-like matrix of the third embodiment of this application, and the cross-sectional direction is the same as that of Figure 2.

[0042] Figure 5 is a cross-sectional view of the sheet-like matrix of the fourth embodiment of this application, and the cross-sectional direction is the same as that of Figure 2.

[0043] Figure 6 is a cross-sectional view of the sheet-like matrix of the fifth embodiment of this application, and the cross-sectional direction is the same as that of Figure 2.

[0044] Figure 7 is a cross-sectional view of the sheet-like matrix of the sixth embodiment of this application, and the cross-sectional direction is the same as that of Figure 2.

[0045] Figure 8 is a schematic diagram of the structure of the aerosol generation matrix segment in the first embodiment of this application;

[0046] Figure 9 is a schematic diagram of the structure of the aerosol generation matrix segment in the second embodiment of this application;

[0047] Figure 10 is a schematic diagram of the structure of the aerosol generation matrix segment according to the third embodiment of this application;

[0048] Figure 11 is a schematic diagram of the structure of an aerosol-generated article according to an embodiment of this application.

[0049] Explanation of reference numerals in the attached figures

[0050] 1. Sheet-like matrix; 10. Base layer; 20. Particle layer; 21. Sub-particle layer; 22. Aerosol generating matrix particles; 30. Coating layer; 40. Coating layer; 100. Aerosol generating matrix section; 200. Filtration section; 300. Cooling section; 400. Pre-plug section; 500. Sealing component; 600. Outer wrapping layer; 1000. Aerosol generating product. Detailed Implementation

[0051] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solutions of this application, and are therefore only examples, and should not be used to limit the scope of protection of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0052] In the description of the embodiments of this application, technical terms such as "first," "second," and "third" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly defined.

[0053] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0054] In the description of the embodiments in this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects are in an "or" relationship.

[0055] In the description of the embodiments of this application, unless otherwise expressly specified and limited, technical terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application according to the specific circumstances.

[0056] In the description of the embodiments of this application, unless otherwise expressly specified and limited, the technical term "contact" should be interpreted broadly, and can be direct contact, contact through an intermediate medium layer, contact between two contacting parties with substantially no interaction force, or contact between two contacting parties with interaction force.

[0057] The present application will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0058] Please refer to Figures 8 to 10. An embodiment of this application provides an aerosol generation matrix segment 100.

[0059] It should be noted that the aerosol generating matrix segment 100 in this embodiment can be used for suction by ignition or by heating without combustion. In this embodiment, the aerosol generating matrix segment 100 is described as being used for suction by heating without combustion.

[0060] Please refer to Figures 1 to 7. This application provides an aerosol-generated matrix sheet.

[0061] It should be noted that the aerosol generating matrix sheet of this application embodiment can be used for suction by ignition or by heating without combustion. In this application embodiment, the example of suction using the aerosol generating matrix sheet by heating without combustion will be described.

[0062] The aerosol generating matrix sheet includes a base layer 10 and a particle layer 20 stacked together. The base layer 10 has particle layers 20 on both sides along the thickness direction of the aerosol generating matrix sheet. The particle layer 20 includes aerosol generating matrix particles 22. At least some of the aerosol generating matrix particles 22 are laid on the base layer 10. The aerosol generating matrix particles 22 can be heated to generate aerosols.

[0063] Please refer to Figure 11. This application embodiment also provides an aerosol generating article 1000, which includes a functional segment, an outer wrapping layer 600 (not shown), and an aerosol generating matrix segment 100 according to any embodiment of this application.

[0064] The aerosol generation matrix segment 100 extends along a first direction. Exemplarily, the first direction is the direction shown by L in FIG11.

[0065] It should be noted that the aerosol generating article 1000 extends in the same direction as the aerosol generating matrix section 100. That is, the aerosol generating article 1000 also extends along the first direction.

[0066] The functional section is located at one end of the aerosol generating matrix section 100 along the 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 600 wraps around the outer periphery of the functional section and the aerosol generating matrix section 100.

[0067] The aerosol generating product 1000 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 filter section 200.

[0068] 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 1000 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.

[0069] 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.

[0070] 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.

[0071] It should be noted that the aerosol generating product 1000 relies on the aerosol generating matrix section 100 to generate aerosols, while the functional section does not generate aerosols.

[0072] The material of the outer wrapping layer 600 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.

[0073] The outer wrapping layer 600 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 600. The outer wrapping layer 600 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.

[0074] 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 1000 is inserted into the aerosol generating device along the first direction, and the aerosol generating product 1000 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.

[0075] 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.

[0076] 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 1000 is placed or removed from 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.

[0077] 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.

[0078] The aerosol generation matrix segment 100 provided in this embodiment includes a sheet-like matrix 1. The aerosol generation matrix segment 100 is constructed as a wound structure formed by winding the sheet-like matrix 1. The sheet-like matrix 1 can be heated to generate aerosols. The sheet-like matrix includes a base layer 10 and a particle layer 20 stacked together. The base layer 10 has particle layers 20 on both sides along the thickness direction of the sheet-like matrix. The particle layer 20 includes aerosol generation matrix particles 22, and at least a portion of the aerosol generation matrix particles 22 are laid on the base layer 10.

[0079] Here, the sheet-like matrix 1 is the aerosol-generated matrix sheet.

[0080] Please refer to Figures 1 to 7. The sheet-like matrix 1 includes a base layer 10 and a particle layer 20 stacked together. 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 rolled up to form a spiral aerosol generating matrix segment 100. That is to say, the aerosol generating matrix segment 100 is not a randomly filled aerosol generating matrix particles 22 and other materials. The aerosol generated by the aerosol generating matrix particles 22 can flow along the spiral sheet-like matrix 1. 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.

[0081] Here, 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.

[0082] The base layer 10 has granular layers 20 on both sides along the thickness direction of the sheet matrix. This helps to increase the loading of aerosol generation matrix particles 22. When one layer is heated, the other layer will be preheated, which is conducive to the continuous and rapid explosion of smoke.

[0083] Here, the number of granular layers 20 on both sides of the base layer 10 along the thickness direction of the sheet-like matrix, the loading, density, and thickness can be the same or different.

[0084] 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.

[0085] 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.

[0086] 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.

[0087] The aerosol generating matrix segment 100 of this application embodiment is configured as a wound structure formed by winding a sheet-like matrix 1. The sheet-like matrix includes a base layer 10 and a particle layer 20 stacked together. By laying aerosol generating matrix particles 22 on the base layer 10 to form the particle layer 20, and by adjusting the particle size and distribution density of the aerosol generating matrix particles 22, a stable airway 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 is beneficial to reduce the displacement caused by vibration and other factors during transportation, storage, or use, thereby further improving the stability of the draw resistance. In addition, by providing particle layers 20 on both sides of the base layer 10 along the thickness direction of the sheet-like matrix, it is beneficial to increase the loading of aerosol generating matrix particles 22, thereby improving the amount of smoke.

[0088] In some embodiments, referring to Figures 6 and 8, the sheet matrix further includes a covering layer 30, at least one of the granular layers 20 having the covering layer 30 disposed on the side away from the base layer 10, the covering layer 30 comprising nonwoven fabric and / or metal foil.

[0089] 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.

[0090] 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.

[0091] 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.

[0092] The specific type of metal foil is not limited here; for example, it could be aluminum foil.

[0093] 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.

[0094] For example, the thickness of the metal foil is 0.01mm-0.015mm.

[0095] 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.

[0096] For example, the weight of the nonwoven fabric is 12g-20g.

[0097] 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.

[0098] In some embodiments, the covering layer 30 includes a cotton layer.

[0099] It should be noted that there are several specific types of basal layer 10.

[0100] In some embodiments, the base layer 10 includes a substrate layer, which includes plant fiber fabric, nonwoven fabric and / or metal foil.

[0101] In other words, the substrate layer can be plant fiber fabric, non-woven fabric, or metal foil, or it can include both non-woven fabric and metal foil.

[0102] 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.

[0103] 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.

[0104] In other embodiments, the base layer 10 includes a matrix layer constructed from a matrix slurry by casting, coating, spraying or dipping, and the matrix layer can be heated to generate an aerosol.

[0105] 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.

[0106] 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.

[0107] This application primarily utilizes a casting process, with the matrix layer structure formed by casting, coating, spraying, or dip coating of the matrix slurry. This process offers high production efficiency. The aerosol-generated matrix particles 22 adhere to the matrix layer. By adjusting the particle size distribution of the aerosol-generated matrix particles 22 and the density of the adhered fabric, sufficient air channels can be formed. 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.

[0108] 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.

[0109] 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.

[0110] 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.

[0111] 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.

[0112] 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.

[0113] In some embodiments, referring to FIG3, at least a portion of the aerosol-generated matrix particles 22 are embedded in the substrate layer 10.

[0114] 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.

[0115] This further improves the connection strength between the aerosol generating matrix particles 22 and the base layer 10, and further reduces the displacement caused by factors such as vibration during transportation, storage or use, thereby further improving the stability of the suction resistance.

[0116] 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.

[0117] 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.

[0118] 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.

[0119] 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.

[0120] For example, the matrix layer can be constructed by casting a matrix slurry onto a substrate layer, coating or spraying a matrix slurry onto a substrate layer, or dip-coating a matrix slurry, resulting in high production efficiency. Alternatively, the matrix layer can be formed first and then applied to the substrate layer.

[0121] 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.

[0122] For example, the matrix layer can be constructed by casting a matrix slurry onto a substrate layer, coating or spraying a matrix slurry onto a substrate layer, or dip-coating a matrix slurry, resulting in high production efficiency. Alternatively, the matrix layer can be formed first and then applied to the substrate layer.

[0123] In some embodiments, a substrate layer is formed by casting on both sides of the sheet matrix 1 along the thickness direction.

[0124] This is beneficial for further increasing the loading of effective substances on the sheet matrix 1.

[0125] In some embodiments, referring to Figures 2 and 3, the sheet-like matrix includes a coating layer 40, which is configured to be formed by coating a matrix slurry onto the surface of the granular layer 20, and the coating layer 40 can be heated to generate an aerosol.

[0126] 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.

[0127] 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.

[0128] In some embodiments, the matrix slurry includes a base material, glycerin, a broadleaf fiber solution, a flavoring, and a nicotine preparation and / or a cooling agent.

[0129] The broad-leaved fibers here include, but are not limited to, poplar, Eucalyptus grandis, and mulberry branches.

[0130] 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.

[0131] The base material includes plant materials, fillers, and adhesives.

[0132] 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.

[0133] For example, the filler includes one or more of calcium carbonate, calcium chloride, magnesium chloride, calcium phosphate, etc.

[0134] For example, the adhesive includes one or more of carrageenan, konjac gum, locust bean gum, guar gum, xanthan gum, sodium alginate, agar, etc.

[0135] In some embodiments, by weight, 30-35 parts of base material, 30-35 parts of glycerin, 10-15 parts of broadleaf fiber solution, 10-15 parts of fragrance, 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%.

[0136] 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.

[0137] 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.

[0138] It should be noted that the number of layers of the sheet matrix 1 is not limited here.

[0139] In some embodiments, as shown in Figures 9 to 10, the sheet-like matrix 1 has a single layer of winding.

[0140] 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.

[0141] Setting the number of winding layers of the sheet matrix 1 to a single layer is beneficial to improving heating efficiency, thereby improving fog production efficiency and ensuring good fog production consistency.

[0142] For example, in an embodiment where the sheet matrix 1 has a single winding layer, the thickness of the base layer 10 can be increased, and the particle size of the aerosol generating matrix particles 22 can be enlarged. This allows for circumferential heating to improve heating efficiency. Furthermore, it enables the formation of stable air channels within the sheet matrix 1, thereby improving the stability of the suction resistance.

[0143] In some embodiments, as shown in FIG8, the sheet-like matrix 1 has multiple winding layers.

[0144] In the embodiments of this application, "multi-layer" refers to two or more layers.

[0145] 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.

[0146] 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.

[0147] 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.

[0148] 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.

[0149] 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.

[0150] In one embodiment, at least some of the adjacent aerosol generating matrix particles 22 are bonded together.

[0151] 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.

[0152] 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.

[0153] In some embodiments, the thickness of the matrix layer is 0.2 mm to 1.5 mm.

[0154] 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.

[0155] 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.

[0156] 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.

[0157] In some embodiments, the density of the matrix layer is 0.6 g / cm³. 3 -0.9g / cm 3 .

[0158] 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 / cm 3 0.9g / cm 3 The point value of any one of them or the point value between any two.

[0159] 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.

[0160] In some embodiments, the density of the substrate layer is 0.5 g / cm³. 3 -1g / cm 3 .

[0161] 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.

[0162] 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.

[0163] In some embodiments, as shown in Figures 2 to 4, the particle layer 20 located on one side of the base layer 10 is a single layer.

[0164] In other words, by laying a layer of aerosol generating matrix particles 22 on one side of the base layer 10, it is beneficial to improve production efficiency and heating efficiency and uniformity of the aerosol generating matrix particles 22.

[0165] In other embodiments, see Figure 5, the particle layer 20 located on one side of the base layer 10 has multiple layers.

[0166] 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.

[0167] In this embodiment, by setting the number of particle layers 20 on one side of the base layer 10 to multiple layers, it is beneficial to further increase the loading of aerosol generating matrix particles 22, thereby increasing the loading of the smoke generating medium (effective substances such as glycerol), and thus increasing the amount of smoke.

[0168] In some embodiments, referring to FIG10, the particle layer 20 located on one side of the substrate layer 10 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 particle sizes.

[0169] It is understandable that aerosol generating matrix particles 22 of different sizes are loaded with different fuming media (effective substances such as glycerol), and the aerosol generation rate is also different.

[0170] In this embodiment, by setting the particle layer 20 located on one side of the base layer 10 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.

[0171] In some embodiments, 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.

[0172] 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.

[0173] In some embodiments, the aerosol generating matrix particles 22 include substrate particles and a smoke-generating medium, with the smoke-generating medium loaded onto the substrate particles. The loading amount of the smoke-generating medium in at least some of the aerosol generating matrix particles 22 differs from the loading amount of the smoke-generating medium in other aerosol generating matrix particles 22. That is, the loading amounts of the smoke-generating medium in the aerosol generating matrix particles 22 are not the same.

[0174] It should be noted that the smoke-generating medium includes, but is not limited to, effective substances such as glycerin.

[0175] The smoke-generating medium of the aerosol generating matrix particles 22 with a low loading and low specific heat capacity is conducive to rapid smoke explosion. The smoke-generating medium of the aerosol generating matrix particles 22 with a high loading can maintain the amount of smoke in the middle of the suction process, which is conducive to the rapid smoke explosion, large amount of smoke, and good consistency during the suction process.

[0176] In some embodiments, the loading of the smoke-generating medium of the aerosol generating matrix particles 22 is the same.

[0177] This will help improve the production efficiency of the aerosol generation matrix section 100.

[0178] In some embodiments, a single particle layer 20 includes a plurality of stacked sub-particle layers 21, wherein the smoke-generating medium loading of the aerosol-generating matrix particles 22 in at least some of the sub-particle layers 21 is different from the smoke-generating medium loading 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 smoke-generating medium loadings.

[0179] 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 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.

[0180] In some embodiments, the loading of the smoke-generating medium is 3 to 20 times the weight of the substrate particles.

[0181] The loading capacity of the smoke-generating medium refers to the weight of the smoke-generating medium loaded on the substrate particles.

[0182] The loading of the smoke-generating medium can be any one of the following values, or any combination of two, which are 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, or 20 times the weight of the substrate particles.

[0183] It is understandable that the greater the load of the smoke-generating medium, the greater the amount of smoke. However, it is also more difficult to load the smoke-generating medium onto the substrate particles, and this will result in a larger specific heat capacity.

[0184] In this embodiment, by setting the load of the smoke-generating medium to 3-20 times the weight of the substrate particles, the aerosol generating matrix particles 22 can have sufficient smoke volume while having an appropriate specific heat capacity, and it is beneficial to reduce the difficulty of loading the smoke-generating medium onto the substrate particles.

[0185] In some embodiments, the density of the aerosol-generating matrix particles 22 is 0.1 g / cm³. 3 -0.15g / cm 3 .

[0186] 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.

[0187] 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.

[0188] In some embodiments, the substrate particles have a plurality of receiving pores, which are openings formed on the outer surface of the substrate particles, and the smoke-generating medium is disposed within the receiving pores. The aerosol-generating matrix particles 22 also include a hydrophobic structure disposed on the outer side of the substrate particles and at least partially covering the openings of the receiving pores.

[0189] The substrate particles have multiple receiving holes, which form openings on the outer surface of the substrate particles. The receiving holes can be through holes, blind holes, or a combination of through holes and blind holes; there are no restrictions on this.

[0190] As an example, the substrate particles 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 and bamboo fungus. Alternatively, the porous plant materials can be materials formed from natural materials through processes such as foaming, such as foamed bamboo. Or, the porous plant materials can be artificially synthesized materials. This embodiment does not impose any limitations on these aspects.

[0191] The specific shape and size of the substrate particles are not limited. For example, the substrate particles can be spherical particles, strip particles, polyhedral particles, irregular particles, etc.

[0192] A smoke-generating medium and / or a flavoring medium are disposed within the receiving orifice. The smoke-generating medium here includes, but is not limited to, glycerin, and the flavoring medium here includes, but is not limited to, flavorings, nicotine preparations, cooling agents, etc.

[0193] In this embodiment, the receiving orifice may contain only a smoke-generating medium. 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 orifice may contain only an aroma-enhancing medium. 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 orifice can also contain both a smoke-generating medium and an aroma-enhancing medium simultaneously.

[0194] The hydrophobic structure is disposed on the outer side of the substrate particles and at least partially covers the opening of the receiving pore. Specifically, the hydrophobic structure here refers to a structure formed by preparing a hydrophobic material, which 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.

[0195] In this embodiment, the hydrophobic structure may cover only a portion of the opening of the receiving hole or cover all the openings of the receiving hole. Furthermore, for a single receiving hole, the hydrophobic structure may completely cover the opening of the receiving hole or only cover a portion of the opening of the receiving hole.

[0196] The specific structural form of the hydrophobic structure is not limited. For example, the hydrophobic structure can be a relatively dense coating structure or a relatively sparse powder coating layer structure; there is no limitation in this regard. The hydrophobic structure can adhere to the outer surface of the substrate particles by its own physical properties, or it can adhere to the outer surface of the substrate particles by means of, for example, an adhesive; there is no limitation in this regard.

[0197] 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.

[0198] In this embodiment, the smoke-generating medium is placed in the pores of the substrate particles, and a hydrophobic structure is used to at least partially cover the opening of the pores. The hydrophobic structure can restrict the movement of water vapor between the external environment and the pores, thereby reducing the probability of water vapor from the external environment entering the pores and causing the smoke-generating medium to become damp and moldy, and / or restricting the volatilization of other components such as flavoring medium in the pores to the external environment, thereby improving the smoking experience.

[0199] 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 (taking rush as an example, it can adsorb 3-5 times its own weight in 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.

[0200] On the other hand, in this embodiment, the pores of the substrate particles have a certain adsorption capacity for the smoke-generating medium and / or aroma-enhancing medium, and the hydrophobic structure also has a certain blocking force. When the aerosol generating matrix particles 22 are actually heated, as the substrate particles heat up, the smoke-generating medium and / or 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 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 (substrate particles of different materials have different adsorption capacities), the structural form of the hydrophobic structure, and the heating intensity during actual use.

[0201] In summary, the aerosol generating matrix particles 22 in this embodiment can increase the loading capacity of the smoke-generating medium, reduce the probability of the smoke-generating medium becoming damp and moldy during storage, and enable the gradual release of smoke, resulting in a better smoking experience.

[0202] In some embodiments, the maximum diameter of the substrate particles is 1-5 mm.

[0203] The maximum diameter of the substrate particles can be any one of 1mm, 1.5mm, 2mm, 2.5mm, 3mm, 3.5mm, 4mm, 4.5mm, or 5mm, or any combination thereof.

[0204] Here, the maximum diameter refers to the maximum distance between two points on the outer surface of the substrate particle. For example, in embodiments where the substrate particle is generally cylindrical, the maximum diameter can be the height of the cylinder or the radial dimension of the cylinder.

[0205] In some embodiments, substrate particles with a maximum diameter of 1.5 mm to 3.5 mm account for 60% to 80% of the total number of substrate particles in the particle layer.

[0206] In other words, it allows most substrate particles to have a maximum diameter of 1.5mm-3.5mm, which helps improve the uniformity of the substrate particles and thus improves the consistency of aerosol release.

[0207] In this embodiment, the aerosol generating medium particles have a small volume. When the aerosol generating medium particles are actually applied to the aerosol generating product 1000, it helps to increase the filling amount, thereby improving the suction experience of the aerosol generating product 1000.

[0208] In some embodiments, the substrate particles are formed by cutting porous plant material.

[0209] This reduces the difficulty of preparing substrate particles, thereby reducing the preparation cost of aerosol generating medium particles.

[0210] 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.

[0211] 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 generating medium particles. On the other hand, it can reduce the possibility that aerosol generating matrix particles 22 will produce unpleasant odors and / or harmful gases when heated.

[0212] In some embodiments, the hydrophobic structure includes hydrophobic powder that is attached to the outer surface of the substrate particles.

[0213] The hydrophobic powder 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 of 100 or larger to obtain the hydrophobic powder, such as by sieving through a sieve with a mesh size of 100-160.

[0214] In this embodiment, during the actual preparation process, the substrate particles adsorbed with the fuming medium can be directly placed into the hydrophobic powder and stirred, so that the hydrophobic powder adheres to the outer surface of the substrate particles to form a powder-coated hydrophobic structure. In this way, the preparation cost of the aerosol generation matrix particles 22 can be further reduced.

[0215] In some embodiments, the hydrophobic powder is formed by pulverizing hydrophobic herbal materials.

[0216] The hydrophobic herbaceous materials used here include, but are not limited to, rush, lemongrass, rosemary, and corn silk.

[0217] In this embodiment, natural hydrophobic herbal materials are used to prepare the hydrophobic powder. Compared with using synthetic hydrophobic materials, this further reduces the preparation cost of the aerosol generating matrix particles 22 and further reduces the possibility that the 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 appearance of unwanted fragrances.

[0218] In some embodiments, the hydrophobic structure includes a hydrophobic coating applied to the outer surface of the substrate particles.

[0219] Compared to the hydrophobic powders mentioned above, hydrophobic coatings have a relatively denser structure. As an example, in actual preparation, the hydrophobic material can be prepared into a slurry, which is then coated onto the outer surface of substrate particles and dried to form a hydrophobic coating.

[0220] In this embodiment, a hydrophobic coating is used to form a hydrophobic structure, which can further improve the hydrophobic coating's isolation effect on water vapor, thereby improving the suction experience.

[0221] In some embodiments, the hydrophobic coating comprises hydrophobic plant powder and broadleaf plant fiber. The water-carrying plant powder primarily provides a hydrophobic effect, while the broadleaf plant fiber provides some support to the water-carrying herbaceous material powder, allowing the two to form a relatively dense hydrophobic coating when combined.

[0222] 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.

[0223] The particle size of the hydrophobic plant powder mentioned here can be the same as or different from that of the hydrophobic powder mentioned above. For example, the hydrophobic powder mentioned above can be obtained by crushing hydrophobic herbal materials and sieving them 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 mentioned here can be 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.

[0224] The broad-leaved plants here include, but are not limited to, poplar, eucalyptus, and mulberry branches.

[0225] In this embodiment, hydrophobic plant powder and broad-leaved plant fiber are used to form a hydrophobic coating. That is, natural plant materials are selected as the whole to form a hydrophobic coating. 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.

[0226] In some embodiments, the thickness of the hydrophobic coating is 0.5-1 mm.

[0227] The thickness of the hydrophobic coating 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.

[0228] In some embodiments, the ratio of the maximum diameter of the substrate particles to the thickness of the water-conveying coating is 1:10-1:2.

[0229] The use of a hydrophobic coating of the above thickness can achieve a good effect of blocking water vapor, and at the same time, it can make the smoke-generating medium evaporate better from the containment hole when heated.

[0230] In some embodiments, the particle layer 20 includes a particle region provided with aerosol generating matrix particles 22 and a particle-free region without aerosol generating matrix particles 22. The particle region and the particle-free region are alternately arranged along the winding direction of the sheet matrix 1.

[0231] Here, both the particulate region and the non-particulate region extend along the height direction of the aerosol generation matrix section 100.

[0232] 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.

[0233] It is understandable that the height direction of the aerosol generation matrix section 100 is perpendicular to the winding direction.

[0234] In this embodiment, by alternating between granular and non-granular regions along the winding direction of the sheet matrix 1, a stable airway can be formed in the non-granular region, thereby improving the stability of the suction resistance, while the aerosol generating matrix particles 22 in the granular region can be heated to generate aerosol.

[0235] In some embodiments, the particle layer 20 further includes receptors that are deposited on the substrate layer 10.

[0236] Here, the specific type of sensor is not limited; for example, the heating component can be electromagnetically heated by the sensor.

[0237] 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.

[0238] In some embodiments, the aerosol generating matrix particles 22 include a sensor and a smoke-generating medium, with the smoke-generating medium loaded on the sensor.

[0239] In this embodiment, by setting the aerosol generating matrix particles 22 to include a sensor and a smoke-generating medium, with the smoke-generating medium 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 loaded on the sensor can generate aerosol after heating, further improving the heating efficiency.

[0240] In some embodiments, along the radial direction of the aerosol generating matrix segment 100, the smoke-generating medium load of the aerosol generating matrix particles 22 located outside the substrate layer 10 is less than the smoke-generating medium load of the aerosol generating matrix particles 22 located inside the substrate layer 10.

[0241] By placing the heating element close to the area with a smaller load of aerosol generating matrix particles 22, the aerosol generating matrix particles 22 with a relatively smaller load can quickly generate a larger amount of smoke 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 quickly generate a larger amount of smoke after preheating, thus maintaining aerosol continuity in the middle and later stages of inhalation. Therefore, along the radial direction of the aerosol generating matrix section 100, the load of the smoke-generating medium of the aerosol generating matrix particles 22 located on the outer side of the base layer 10 is less than that of the smoke-generating medium of the aerosol generating matrix particles 22 located on the inner side of the base layer 10. By adopting a circumferential heating method, the amount of aerosol release 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.

[0242] In some embodiments, along the radial direction of the aerosol generating matrix segment 100, the loading of the smoke-generating medium of the aerosol generating matrix particles 22 located outside the substrate layer 10 is greater than the loading of the smoke-generating medium of the aerosol generating matrix particles 22 located inside the substrate layer 10.

[0243] In this embodiment, by using a central heating method, the amount of aerosol released can be kept roughly the same in the early, middle and late stages of suction, which can improve the consistency of suction and thus improve the suction experience.

[0244] In other embodiments, the loading of the smoke-generating medium of the aerosol-generating matrix particles 22 on both sides of the substrate 10 along the thickness direction of the sheet matrix is ​​the same.

[0245] This will help improve production efficiency.

[0246] In some embodiments, please refer to FIG7, there are multiple sheet-like substrates 1, and multiple sheet-like substrates 1 are stacked and then wound to form an aerosol to generate substrate segments 100.

[0247] 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.

[0248] In this embodiment, the multiple sheet-like matrix layers can be the same or different.

[0249] It should be noted that there are no restrictions on the arrangement of multiple sheet-like matrix layers.

[0250] In some embodiments, along the radial direction of the aerosol generation matrix segment 100, the distribution density of aerosol generation matrix particles 22 in the particle layer 20 located outside the substrate layer 10 is less than the distribution density of aerosol generation matrix particles 22 in the particle layer 20 located inside the substrate layer 10.

[0251] By placing the heating element close to the area with a lower distribution density of aerosol generating matrix particles 22, a larger amount of smoke can be generated quickly in the initial stage of inhalation, resulting in sufficient aerosol generation in the aerosol generating matrix section 100. In the middle and later stages of inhalation, the area with a relatively high distribution density of aerosol generating matrix particles 22 can also generate a larger amount of smoke quickly after preheating, thus maintaining aerosol continuity in the middle and later stages of inhalation. Therefore, along the radial direction of the aerosol generating matrix section 100, the distribution density of aerosol generating matrix particles 22 in the particle layer 20 located outside the base layer 10 is lower than that in the particle layer 20 located inside the base layer 10. By employing circumferential heating, the amount of aerosol released can be kept approximately consistent throughout the initial, middle, and later stages of inhalation, thereby improving the consistency of inhalation and enhancing the inhalation experience.

[0252] In some embodiments, along the radial direction of the aerosol generating matrix segment 100, the distribution density of the aerosol generating matrix particles 22 in the particle layer 20 located outside the base layer 10 is greater than the distribution density of the aerosol generating matrix particles 22 in the particle layer 20 located inside the base layer 10.

[0253] In this embodiment, by using a central heating method, the amount of aerosol released can be kept roughly the same in the early, middle and late stages of suction, which can improve the consistency of suction and thus improve the suction experience.

[0254] In other embodiments, the aerosol-generating matrix particles 22 of the particle layers 20 on both sides of the substrate 10 along the thickness direction of the sheet matrix have the same distribution density.

[0255] This will help improve production efficiency.

[0256] The embodiments of this application also provide a method for preparing aerosol generating medium particles, the method comprising the following steps.

[0257] Step S101: Prepare substrate particles, which have multiple receiving holes that form openings on the outer surface of the substrate particles.

[0258] 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 holes of the substrate can be through holes, blind holes, or a combination of through holes and blind holes; there are no restrictions on this.

[0259] The substrate particles 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, and freeze-dried fruits and vegetables. 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.

[0260] 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).

[0261] 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.

[0262] Here, the order of steps S101 and S102 is not particularly limited, and they can be performed simultaneously.

[0263] By weight, 30-35 parts base material, 20-25 parts glycerin, 10-15 parts broadleaf fiber solution, 5-8 parts flavoring, and 1-2 parts 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%.

[0264] Of course, you can also add an appropriate amount of water, for example, 10-15 parts water.

[0265] The base material includes plant materials, fillers, and adhesives.

[0266] 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.

[0267] For example, the filler includes one or more of calcium carbonate, calcium chloride, magnesium chloride, calcium phosphate, etc.

[0268] For example, the adhesive includes one or more of carrageenan, konjac gum, locust bean gum, guar gum, xanthan gum, sodium alginate, agar, etc.

[0269] 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.

[0270] 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.

[0271] Step S103: The substrate particles adsorb the smoke-generating medium.

[0272] Take 10-15 parts of the substrate particles from step S101, 35-60 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 10-25 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.

[0273] 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.

[0274] 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.

[0275] 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.

[0276] Step S104: First casting: The slurry obtained in step S102 is cast on an aluminum foil with a thickness of 0.01 to 0.015 mm or a non-woven 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.

[0277] 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 aerosol matrix particles 22 obtained in step S103 are uniformly dispersed on the surface of the cast thin layer, causing them to adhere to the thin layer and obtain a sheet-like matrix 1. Depending on the requirements for different smoke volumes, continuous number of puffs, and winding methods, the particle distribution can be irregular saturated distribution or intermittent strip distribution (equal spacing and unequal spacing, etc.). As an example, the positive electrode current collector can be a metal foil, conductive polymer material, carbon material, or composite current collector. For example, 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.

[0278] 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.

[0279] For example, the weight of the coating layer when it is a nonwoven fabric is 12 to 20 g.

[0280] For example, when the coating layer is aluminum foil, the thickness is 0.01 to 0.015 mm.

[0281] 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.

[0282] Step S105: Secondary casting. The cast sheet obtained in step S104 is flipped over and cast again on the back side. The adsorption and distribution methods of the base material and aerosol matrix particles 22 can be the same as in step S104, or different adsorption loads and distribution methods can be selected within the aforementioned adjustable range.

[0283] Step S106: 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.

[0284] For example, the material is cut into thin sheets of varying widths of 1.5–2.5 cm, rolled into cylinders (1–3 turns) in different directions, and then cut into medium 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.

[0285] 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.

[0286] 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.

[0287] 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.

[0288] 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.

[0289] 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.

[0290] 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.

[0291] 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.

[0292] Through the above measures, the amount of fragrance used in aerosol generating matrix particles 22 can be reduced by more than 45% (dry basis), the effective utilization rate of VG / PG / NIC can reach more than 70%, the number of puffs can reach 30, the draw resistance is reduced by 20%, the average smoke volume is greater than 4.5mg / puff, and the consistency RSD of each puff is less than 20%.

[0293] 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.

[0294] In one embodiment, referring to Figure 11, 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.

[0295] 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.

[0296] In one embodiment, referring to FIG11, the aerosol generating article 1000 further includes a breathable sealing element 500 disposed at at least one end of the aerosol generating matrix section 100.

[0297] The sealing element 500 is a membrane through which airflow can pass.

[0298] For example, the sealing element 500 can be cigarette paper, non-woven fabric, polymer, etc., which have good air permeability.

[0299] For example, the permeability of the sealing element 500 can be greater than or equal to 500 CU (CU is cm). 3 / (min*cm 2 (abbreviation of *kpa).

[0300] 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.

[0301] 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, when using an aerosol generating product 1000 with this structure, the aerosol generating device achieves higher cleanliness, and when drawing aerosol generating products 1000 of different flavors, cross-contamination of flavors is virtually eliminated.

[0302] 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 generating product 1000, thus improving the ease of assembly.

[0303] In one embodiment, the cooling section 300 has an airflow channel. The aerosol generation matrix section 100 enters the airflow channel and is cooled within the airflow channel.

[0304] In other embodiments, the cooling section 300 may also adopt other structural forms, as long as it can achieve the cooling effect.

[0305] In some embodiments, the aerosol generating article 1000 may not have a functional segment, that is, the aerosol generating matrix segment 100 can constitute the aerosol generating article 1000 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.

[0306] 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.

[0307] 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.

[0308] 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.

[0309] 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.

[0310] 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.

[0311] 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.

[0312] 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.

[0313] The above embodiments are merely illustrative of the technical solutions of this application and are not intended to limit it. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application, and they should all be covered within the scope of the claims and specification of this application. In particular, as long as there is no structural conflict, the various technical features mentioned in the embodiments can be combined in any way. This application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. An aerosol generation matrix segment, characterized in that, The aerosol generating matrix segment includes a sheet-like matrix, which is constructed as a wound structure formed by winding the sheet-like matrix. The sheet-like matrix can be heated to generate aerosols. The sheet-like matrix includes a base layer and a particle layer stacked together. The particle layer is provided on both sides of the base layer along the thickness direction of the sheet-like matrix. 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.

2. The aerosol generation matrix segment according to claim 1, characterized in that, The base layer includes a substrate layer, which includes plant fiber fabric, non-woven fabric and / or metal foil.

3. The aerosol generation matrix segment according to claim 1, characterized in that, The base layer includes a matrix layer, which is constructed from a matrix slurry by means of casting, coating, spraying or dipping, and the matrix layer can be heated to generate an aerosol; and / or, the sheet-like matrix includes a coating layer, which is constructed by coating a matrix slurry onto the surface of the particle layer, and the coating layer can be heated to generate an aerosol.

4. The aerosol generation matrix segment according to claim 3, characterized in that, The thickness of the matrix layer is 0.2 mm to 1.5 mm; and / or, the density of the matrix layer is 0.6 g / cm³. 3 -0.9g / cm 3 ; and / or, the density of the substrate layer is 0.5 g / cm³. 3 -1g / cm 3 .

5. The aerosol generation matrix segment according to claim 3, characterized in that, The base layer further includes a substrate layer, which includes plant fiber fabrics, non-woven fabrics, and / or metal foils.

6. The aerosol generation matrix segment according to claim 5, characterized in that, The substrate layer is formed by casting on both sides along the thickness direction of the sheet-like matrix.

7. The aerosol generation matrix segment according to claim 1, characterized in that, The number of winding layers of the sheet-like matrix can be single or multiple.

8. The aerosol generation matrix segment according to claim 1, characterized in that, The sheet-like matrix is ​​wound into a circle, the base layer is wound into a cylindrical space, 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.

9. The aerosol generation matrix segment according to claim 1, characterized in that, The aerosol generating matrix particles include substrate particles and a smoke-generating medium, wherein the smoke-generating medium is loaded on the substrate particles; and / or, at least partially adjacent aerosol generating matrix particles are bonded together.

10. The aerosol generation matrix segment according to claim 9, characterized in that, Each particle layer comprises multiple stacked sub-particle layers, wherein the particle size of the aerosol-generating matrix particles in at least a portion of the sub-particle layers is different from the particle size of the aerosol-generating matrix particles in other sub-particle layers, and / or, the distribution density of the aerosol-generating matrix particles in at least a portion of the sub-particle layers is different from the distribution density of the aerosol-generating matrix particles in other sub-particle layers, and / or, the loading of the smoke-generating medium in the aerosol-generating matrix particles in at least a portion of the sub-particle layers is different from the loading of the smoke-generating medium in the aerosol-generating matrix particles in other sub-particle layers.

11. The aerosol generation matrix segment according to claim 9, characterized in that, The loading amount of the smoke-generating medium is 3-20 times the weight of the substrate particles; and / or, the density of the aerosol-generating matrix particles is 0.1 g / cm³. 3 -0.15g / cm 3 .

12. The aerosol generation matrix segment according to claim 9, characterized in that, 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 further include a hydrophobic structure, which is disposed on the outside of the substrate particles and at least partially covers the openings of the receiving holes.

13. The aerosol generation matrix segment according to claim 12, characterized in that, The maximum diameter of the substrate particles is 1-5 mm; and / or the substrate particles are formed by cutting porous plant materials, the porous plant materials including at least one of the following: rush pith, bamboo fungus, freeze-dried plants, and plants that have undergone foaming treatment.

14. The aerosol generation matrix segment according to claim 1, characterized in that, The particle layer includes a particle region with the aerosol generating matrix particles and a particle-free region without the aerosol generating matrix particles; the particle region and the particle-free region are alternately arranged along the winding direction of the sheet matrix.

15. The aerosol generation matrix segment according to claim 1, characterized in that, The sheet-like matrix further includes a coating layer, and at least one of the granular layers is provided with the coating layer on the side away from the base layer. The coating layer includes plant fiber fabric, non-woven fabric and / or metal foil.

16. An aerosol-generating product, characterized in that, include: The aerosol generation matrix segment according to any one of claims 1-15; A functional segment is disposed at one end of the aerosol generating matrix segment. The functional segment includes a cooling segment and a filtration segment. The cooling segment is located between the filtration segment and the aerosol generating matrix segment. An outer wrapping layer is wrapped around the outer periphery of the functional segment and the aerosol generating matrix segment.

17. An aerosol-generating matrix sheet, characterized in that, The aerosol generating matrix sheet includes a base layer and a particle layer stacked together. The particle layer is provided on both sides of the base layer along the thickness direction of the aerosol generating matrix sheet. 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. The aerosol generating matrix particles can be heated to generate aerosols.

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