Aerosol-generating substrate segment and preparation method therefor, and aerosol-generating article

Abstract

An aerosol-generating substrate segment (100) and a preparation method therefor, and an aerosol-generating article (1000). The aerosol-generating substrate segment (100) comprises a sheet-like substrate (1); the aerosol-generating substrate segment (100) is configured as a wound structure formed by winding the sheet-like substrate (1); and the sheet-like substrate (1) comprises a base material layer (11), a substrate layer (12), and a plurality of substrate strips (20), wherein the substrate strips (20) are arranged at intervals on one side of the base material layer (11) in the winding direction of the sheet-like substrate (1), the axial direction of the substrate strips (20) intersects the winding direction, and the substrate strips (20) can be heated to generate an aerosol; the substrate layer (12) is configured to be formed by casting a substrate slurry; and the substrate layer (12) covers at least part of outer side walls of the substrate strips (20). An airflow channel (1a) can be formed between the substrate strips (20), and the generated aerosol can be released through the airflow channel (1a), which is beneficial for ensuring the suction effect of the aerosol-generating article (1000) and reducing the suction resistance of the aerosol-generating article (1000).

Description

Aerosol generation matrix segment and its preparation method, aerosol generation products

[0001] Cross-references to related applications

[0002] This disclosure is based on and claims priority to Chinese Patent Application No. 202411533405.1, filed on October 30, 2024, and Chinese Patent Application No. 202411533566.0, filed on October 30, 2024, the entire contents of which are incorporated herein by reference. Technical Field

[0003] This application relates to the field of smoke-generating products technology, and in particular to an aerosol-generating matrix segment and its preparation method, and an aerosol-generating product. Background Technology

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

[0005] In related technologies, the aerosol generation matrix section will have a certain adsorption and condensation effect on the generated aerosols, resulting in problems such as decreased suction effect and increased suction resistance. Summary of the Invention

[0006] In view of this, the embodiments of this application aim to provide an aerosol generation matrix segment and its preparation method, as well as an aerosol generation product, in order to improve the suction effect of the aerosol generation matrix segment and reduce the suction resistance of the aerosol generation matrix segment.

[0007] To achieve the above objectives, the technical solution of this application embodiment is implemented as follows:

[0008] 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. The sheet-like matrix includes:

[0009] Substrate layer;

[0010] Multiple matrix strips are spaced apart on one side of the substrate layer along the winding direction of the sheet matrix, and the axial direction of the matrix strips intersects the winding direction. The matrix strips can be heated to generate aerosols.

[0011] The matrix layer is constructed by casting a matrix slurry, and the matrix layer covers at least a portion of the outer sidewall of the matrix strip.

[0012] In one embodiment, the substrate layer is made of plant fiber fabric, non-woven fabric, or metal foil; and / or,

[0013] The thickness of the matrix layer is 0.3 mm to 2.5 mm; and / or,

[0014] The diameter of the matrix strip is 1mm-2mm; and / or,

[0015] The degree of expansion of the matrix strip is not less than 75%.

[0016] In one embodiment, the surface of the matrix strip away from the substrate layer is higher than the surface of the matrix layer away from the substrate layer between adjacent matrix strips; or,

[0017] The surface of the matrix layer covering the matrix strip is at least partially higher than the surface of the matrix layer between adjacent matrix strips.

[0018] In one embodiment, an airflow channel is formed between adjacent matrix strips.

[0019] In one embodiment, the sheet-like matrix is ​​wound into a circle, the substrate layer is wound into a first cylindrical space, and each of the matrix strips is arranged circumferentially along the first cylindrical space, with airflow channels provided between at least some of the matrix strips.

[0020] In one embodiment, the smoke-generating agent loaded on the matrix strip is greater than the smoke-generating agent loaded on the matrix layer; or,

[0021] The specific heat capacity of the matrix strip is less than that of the matrix layer.

[0022] In one embodiment, the matrix layer comprises hydrophobic materials, smoke generators, broadleaf fibers, water, fragrances, and nicotine and / or cooling agents.

[0023] In one embodiment, the hydrophobic material includes at least one of honeysuckle, mulberry leaf, chrysanthemum, dandelion, kudzu root, ophiopogon japonicus, almond, hyacinth bean, and lycium bark.

[0024] In one embodiment, the matrix strip comprises a main raw material, a porous material, a smoke generator, a flavoring agent, water, and nicotine and / or a cooling agent, wherein the main raw material comprises protein powder, starch, and fiber.

[0025] In one embodiment, the porous material comprises at least one of the following:

[0026] Juncus effusus, bamboo fungus, freeze-dried plants, and plants that have undergone foaming treatment.

[0027] 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. The sheet-like matrix can be heated to generate aerosols.

[0028] The sheet-like matrix includes a base layer and matrix strips, and the matrix strips are disposed on at least one side of the base layer along the thickness direction of the sheet-like matrix.

[0029] In one embodiment, the base layer includes a substrate layer, which includes plant fiber fabric, nonwoven fabric, and / or metal foil.

[0030] In one embodiment, the base layer includes a matrix layer, which is constructed from a matrix slurry by casting, spraying, or dipping, and the matrix layer can be heated to generate an aerosol.

[0031] In one embodiment, the thickness of the matrix layer is 0.2 mm to 1.5 mm; and / or,

[0032] The density of the matrix layer is 0.6 g / cm³-0.9 g / cm³; and / or,

[0033] The density of the base layer is 0.5 g / cm3-1 g / cm3.

[0034] 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.

[0035] 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.

[0036] In one embodiment, the number of winding layers of the sheet-like substrate is a single layer or multiple layers.

[0037] In one embodiment, the sheet-like matrix is ​​wound into a circle, the base layer is wound into a second cylindrical space, and the matrix strip is wrapped within the second cylindrical space.

[0038] In one embodiment, each of the matrix strips extends along the central axis of the aerosol generating matrix segment, and each of the matrix strips is arranged at circumferential intervals along the second cylindrical space.

[0039] In one embodiment, an airflow channel is formed between at least two adjacent matrix strips.

[0040] In one embodiment, the matrix strip is constructed by extruding raw materials, and the matrix strip can be heated to generate an aerosol.

[0041] In one embodiment, the maximum diameter of the cross-section of the matrix strip is 1mm-2mm; and / or,

[0042] The degree of expansion of the matrix strip is greater than or equal to 0.75.

[0043] This application provides a method for preparing an aerosol generation matrix segment, including:

[0044] Multiple matrix strips are spaced apart on the substrate layer along a first direction, the first direction intersecting the axial direction of the matrix strips;

[0045] The matrix slurry is cast onto the side of the substrate layer where the matrix strip is located;

[0046] Dry the matrix slurry to obtain a sheet-like matrix;

[0047] The sheet-like matrix is ​​wound along the first direction to obtain the aerosol-generating matrix segment.

[0048] This application provides an aerosol generation matrix segment, which is prepared by the aerosol generation matrix segment preparation method described in the above embodiments.

[0049] This application provides an aerosol generating article, which includes the aerosol generating matrix segment described in any of the above embodiments.

[0050] In one embodiment, the aerosol generating article further includes a functional section and an outer coating layer. The functional section is disposed at one end of the aerosol generating matrix section and includes a cooling section and a filtration section. The cooling section is located between the filtration section and the aerosol generating matrix section. The outer coating layer wraps around the outer periphery of the functional section and the aerosol generating matrix section.

[0051] In this embodiment of the aerosol generating matrix segment, the matrix strips are relatively uniformly distributed on the substrate layer and are wrapped by the matrix layer, thus being relatively stably fixed to the substrate layer. The uniformity of the suction effect and the relatively stable suction resistance of the heterogeneous aerosol generating matrix segment are increased. At the same time, the matrix strips are wrapped by the matrix layer, that is, the honeycomb pores on the surface of the matrix strips can be covered by the matrix layer, thereby reducing the adsorption and condensation effect of the honeycomb pores on the generated aerosols. This helps to ensure the suction effect of the aerosol generating product and reduce the suction resistance of the aerosol generating product. In addition, since the matrix strips are spaced apart, after the sheet matrix is ​​rolled to form the aerosol generating matrix segment, the gap between two adjacent matrix strips along the circumference of the aerosol generating matrix segment can form an airflow channel. The aerosols generated by the matrix strips can be released through the airflow channel, which helps to increase the amount of smoke during suction, ensure the suction taste of the aerosol generating product, and the airflow channel can also reduce the suction resistance, thereby improving the suction experience. Attached Figure Description

[0052] Figure 1 is a cross-sectional schematic diagram of the sheet-like matrix according to the first embodiment of this application;

[0053] Figure 2 is a schematic cross-sectional view of the aerosol generation matrix segment of the first embodiment of this application;

[0054] Figure 3 is a schematic diagram of the sheet-like matrix of the second embodiment of this application;

[0055] Figure 4 is a cross-sectional view along the AA direction in Figure 3;

[0056] Figure 5 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 4;

[0057] Figure 6 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 4.

[0058] Figure 7 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 4;

[0059] Figure 8 is a schematic diagram of the structure of the aerosol generation matrix segment in the second embodiment of this application;

[0060] Figure 9 is a schematic diagram of the structure of the aerosol generation matrix segment according to the third embodiment of this application;

[0061] Figure 10 is a schematic diagram of the structure of the aerosol generation matrix segment according to the fourth embodiment of this application;

[0062] Figure 11 is a schematic diagram of the structure of the aerosol generation matrix segment according to the fifth embodiment of this application;

[0063] Figure 12 is a schematic diagram of the structure of an aerosol-generated article according to an embodiment of this application.

[0064] Figure 13 is a schematic flowchart of a method for preparing an aerosol-generating matrix segment according to an embodiment of this application. Detailed Implementation

[0065] 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.

[0066] 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.

[0067] 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.

[0068] 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.

[0069] 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.

[0070] 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.

[0071] The present application will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0072] The first aspect of this application provides an aerosol generating article. Referring to FIG12, the aerosol generating article 1000 includes an aerosol generating matrix segment 100 according to any embodiment of this application.

[0073] 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.

[0074] The aerosol generation matrix segment 100 extends along a second direction. Exemplarily, the second direction is the direction shown by L in FIG12.

[0075] 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 second direction.

[0076] The aerosol generating article 1000 also includes a functional section and an outer coating layer 600. The functional section is located at one end of the aerosol generating matrix section 100, that is, at one end of the aerosol generating matrix section 100 along the second direction. The functional section includes a cooling section 300 and a filtration section 200.

[0077] The cooling section 300 is located between the filtration section 200 and the aerosol generation matrix section 100. It is used to cool the aerosol before filtration in the filtration section 200, thereby reducing the aerosol temperature and alleviating the "burning" sensation experienced by users when inhaling the aerosol. The outer wrapping layer 600 wraps around the outer periphery of the functional section and the aerosol generation matrix section 100.

[0078] 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.

[0079] 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.

[0080] 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.

[0081] It should be noted that the aerosol generating product 1000 relies on the aerosol generating matrix section 100 to generate aerosols. The functional section generally does not generate aerosols, but some aerosol generating products 1000 may add flavoring substances such as popping beads to the functional section.

[0082] 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.

[0083] 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.

[0084] The second 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 second direction, and the aerosol generating product 1000 is also taken out of the aerosol generating device along the second direction. The length of the aerosol generating matrix section 100 along the second direction can be longer, shorter or the same as the length in other directions.

[0085] For example, when the outer contour of the aerosol generating matrix segment 100 is cylindrical, the second 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.

[0086] For example, when the aerosol generating matrix section 100 has a cuboid shape, the second 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 second direction of the aerosol generating matrix section 100 can be any of the length, width and height of the cuboid.

[0087] In related technologies, the aerosol generation matrix segment includes a matrix strip, which can be heated and atomized to generate aerosol. The matrix strip is in an expanded shape and has honeycomb pores on its surface. The honeycomb pores will adsorb and condense the generated aerosol, resulting in problems such as decreased suction effect and increased suction resistance.

[0088] In view of this, the present application provides an aerosol generation matrix segment. Please refer to Figures 1 and 12. The aerosol generation matrix segment 100 includes a sheet matrix 1 and is constructed as a wound structure formed by winding the sheet matrix 1.

[0089] The length of the aerosol generating matrix segment 100 is not limited. For example, its length can be any size in the range of 12mm to 20mm. For example, the length of the aerosol generating matrix segment 100 can be 12mm, 13mm, 14mm, 15mm, 16mm, 17mm, 18mm, 19mm, 20mm, etc.

[0090] The term "sheet matrix 1" refers to a matrix that is roughly a thin sheet structure extending along a plane.

[0091] The sheet-like matrix 1 can be wound to obtain a columnar aerosol generation matrix segment 100. The radial direction of the aerosol generation matrix segment 100 is the same as the thickness direction of the sheet-like matrix 1.

[0092] Referring to Figure 1, the sheet-like substrate 1 includes a substrate layer 11, a plurality of substrate strips 20, and a substrate layer 12. Here, the substrate layer 11 and the substrate layer 12 are referred to as the base layer 10.

[0093] The material of the substrate layer 11 is not limited. In some embodiments, the substrate layer 11 is made of non-woven fabric. After the sheet matrix 1 is wound to form the aerosol generating matrix segment 100, the matrix strip 20 is sandwiched between two layers of non-woven fabric in the radial direction of the aerosol generating matrix segment 100. The non-woven fabric has good air permeability, which is beneficial to the increase of smoke volume and rapid smoke emission.

[0094] In addition, non-woven fabric has a certain degree of air permeability, and the suction resistance of aerosol generating product 1000 is relatively small during the suction process; moreover, non-woven fabric is relatively soft, which makes it easy to wind the sheet matrix 1 into aerosol generating matrix segment 100.

[0095] It should be noted that there are no restrictions on the type of smoke-generating agent. For example, smoke-generating agents include, but are not limited to, glycerin, propylene glycol, etc.

[0096] In other embodiments, the substrate layer 11 is made of metal foil. More specifically, it can be aluminum foil. Metal foil has relatively good ductility, which makes it easy to process the substrate layer 11 into various shapes and sizes; in addition, metal foil has good toughness, resulting in higher overall structural strength of the aerosol generating matrix segment 100; metal foil also has good thermal conductivity, which is beneficial to improving the smoke generation rate of the aerosol generating product 1000.

[0097] In some embodiments, the substrate layer 12 may be made of plant fiber fabric, which can carry fragrance and increase breathability; in addition, the plant fiber fabric also has the functions of cushioning and elasticity, which is beneficial to the cooperation between the heating component and the aerosol generating matrix section 100.

[0098] Each matrix strip 20 is spaced apart on one side of the substrate layer 11 along the winding direction of the sheet matrix 1, and the axial direction of the matrix strip 20 intersects the winding direction. The matrix strip 20 can be heated to generate an aerosol.

[0099] As can be understood, as shown in Figure 1, since the matrix strips 20 are spaced apart, after the sheet matrix 1 is wound to form the aerosol generating matrix section 100, the gap between two adjacent matrix strips 20 can form an airflow channel 1a along the circumference of the aerosol generating matrix section 100. The aerosol generated by the matrix strips 20 can be released through the airflow channel, which is beneficial to increase the amount of smoke during inhalation and ensure the inhalation taste of the aerosol generating product 1000. At the same time, the airflow channel 1a can reduce the inhalation resistance, thereby improving the inhalation experience.

[0100] It should be noted that the axial direction of the matrix strip 20 is approximately parallel to the axial direction of the aerosol generation matrix segment 100.

[0101] The winding direction of the sheet matrix 1 refers to the direction in which the sheet matrix 1 is wound to form the aerosol generating matrix segment 100. For example, the winding direction is the first direction shown as D in FIG1.

[0102] The axial direction of the substrate strip 20 can be orthogonal to the winding direction.

[0103] The matrix strip 20 can be formed, for example, by an extrusion process. Since extrusion denatures components such as proteins and starches, it can affect the taste of the aerosol-generated product 1000. To minimize this impact on the taste, the starch and protein content in the matrix strip 20 is generally not high. Therefore, the matrix strip 20 may have poor strength and is prone to breakage, increasing the difficulty of subsequent material handling, processing, packaging, and slitting processes, resulting in greater losses, low production efficiency, and high costs. However, in this embodiment, by placing the matrix strip 20 on the substrate layer 11, which has a certain degree of toughness, the breakage problem of the matrix strip 20 is improved. This also helps to alleviate the difficulties in subsequent material handling, processing, packaging, and slitting processes, as well as the associated losses, low production efficiency, and high costs.

[0104] The matrix strip 20 is in direct contact with the substrate layer 11. When used in conjunction with a peripherally heated aerosol generating device, it facilitates the rapid release of smoke-generating agents, fragrances, and other components in the matrix strip 20.

[0105] The sheet-like matrix 1 also includes a matrix layer 12, which is constructed by casting a matrix slurry and covers at least a portion of the outer wall of the matrix strip 20. It should be noted that the matrix slurry formed by casting the matrix layer 12 can also be referred to as a cast slurry.

[0106] It should be noted that, under the action of the heating component, the matrix layer 12 may or may not generate aerosols.

[0107] In this embodiment of the aerosol generation matrix segment, the matrix strips 20 are relatively uniformly distributed on the substrate layer 11 and wrapped by the matrix layer 12, thereby being relatively stably fixed on the substrate layer 11. The uniformity of the suction effect of the heterogeneous aerosol generation matrix segment 100 is increased, and the suction resistance is relatively stable. At the same time, the matrix strips 20 are wrapped by the matrix layer 12, that is, the honeycomb pores on the surface of the matrix strips 20 can be covered by the matrix layer 12, thereby reducing the adsorption and condensation effect of the honeycomb pores on the generated aerosol. Therefore, it is beneficial to ensure the aerosol generation product 1000 The aerosol generating product 1000 has a better suction effect and reduces suction resistance. At the same time, since the matrix strips 20 are spaced apart, after the sheet matrix 1 is wound to form the aerosol generating matrix section 100, the gap between two adjacent matrix strips 20 can form an airflow channel 1a along the circumference of the aerosol generating matrix section 100. The aerosol generated by the matrix strips 20 can be released through the airflow channel 1a, which helps to increase the amount of smoke during suction, ensure the suction taste of the aerosol generating product 1000, and reduce suction resistance, thereby improving the suction experience.

[0108] Furthermore, the matrix strip 20 can be fixed relatively stably to the substrate layer 11, thereby reducing the probability of the matrix strip 20 detaching from the substrate layer 11 and falling into the cooling section 300. One end of the aerosol generation matrix section 100 does not need to be sealed, which helps to simplify the production process of the aerosol generation matrix section 100 and reduce the production cost of the aerosol generation matrix section 100.

[0109] In some embodiments, the thickness of the matrix layer 12 is 0.3mm-2.5mm. For example, it can be 0.3mm, 0.4mm, 0.5mm, 0.6mm, 0.7mm, 0.8mm, 0.9mm, 1mm, 1.1mm, 1.2mm, 1.3mm, 1.4mm, 1.5mm, 1.6mm, 1.7mm, 1.8mm, 1.9mm, 2mm, 2.1mm, 2.2mm, 2.3mm, 2.4mm, 2.5mm, etc.

[0110] The thickness of the matrix layer 12 is shown as W1 in Figure 1.

[0111] In this embodiment, the matrix layer 12 has a relatively suitable thickness, which can better wrap the matrix strip 20, making it easier for the matrix layer 12 to better wrap the matrix strip 20.

[0112] In some embodiments, the diameter of the substrate strip 20 is 1mm-2mm. For example, it can be 1mm, 1.1mm, 1.2mm, 1.3mm, 1.4mm, 1.5mm, 1.6mm, 1.7mm, 1.8mm, 1.9mm, 2mm, etc.

[0113] In this embodiment, the diameter of the matrix strip 20 is more suitable. After the sheet matrix 1 is wound into an aerosol generating matrix segment 100, the gap between each substrate layer 11 is relatively small along the radial direction of the aerosol generating matrix segment 100. With the diameter of the aerosol generating matrix segment 100 remaining unchanged, the matrix strip 20 has a higher filling rate in the aerosol generating matrix segment 100, which is conducive to improving the suction experience of the aerosol generating product 1000.

[0114] In some embodiments, the degree of expansion of the matrix strip 20 is not less than 75%. For example, it is 75%, 77%, 79%, 81%, 83%, 85%, 87%, 89%, 91%, 93%, 95%, 97%, 99%, etc.

[0115] It should be noted that the degree of expansion of the matrix strip 20 refers to the ratio of the diameter of the discharge port of the extrusion equipment to the cross-sectional area of ​​the matrix strip 20. It can be understood that the degree of expansion is less than 100%.

[0116] Understandably, the smaller the degree of puffing, the better the puffing effect.

[0117] In this embodiment, the matrix strip 20 is slightly expanded, so that the matrix strip 20 has a certain adsorption capacity, which is beneficial to increasing the adsorption of smoke-generating agents and fragrances in the matrix strip 20; at the same time, the matrix strip 20 will not be over-expanded, so the matrix strip 20 also has a certain toughness and better structural strength.

[0118] In some embodiments, referring to FIG1, the surface of the matrix strip 20 away from the substrate layer 11 is higher than the surface of the matrix layer 12 away from the substrate layer 11 between adjacent matrix strips 20.

[0119] Alternatively, the surface of the matrix layer 12 covering the matrix strip 20 is at least partially higher than the surface of the matrix layer 12 between adjacent matrix strips 20.

[0120] In this embodiment, along the first direction, the distance between the surface of the matrix layer 12 facing away from the substrate layer 11 and the substrate layer 11 is not equal. After the sheet matrix 1 is wound to form the aerosol generating matrix segment 100, along the radial direction of the aerosol generating matrix segment 100, it is convenient to form gaps between each layer of sheet matrix 1. These gaps can release aerosols and at the same time, help reduce the absorption resistance of the aerosol generating product 1000.

[0121] In some embodiments, referring to Figure 1, an airflow channel 1a is formed between adjacent matrix strips 20. The airflow channel 1a extends along the axial direction of the aerosol generating matrix section 100 and passes through both ends of the aerosol generating matrix section 100. When aerosol is drawn in, the airflow can pass through the airflow channel 1a along the axial direction of the aerosol generating matrix section 100. The generated aerosol is released through the airflow channel 1a, and the airflow carries it away from the aerosol generating matrix section 100. This helps to reduce the suction resistance of the aerosol generating product 1000 and improve the suction experience of the aerosol generating product 1000.

[0122] In some embodiments, please refer to FIG2, the sheet matrix 1 is wound into a circle, the substrate layer 11 is wound into a first cylindrical space 11a, and each matrix strip 20 is arranged along the circumference of the first cylindrical space 11a, and airflow channels 1a are provided between at least some of the matrix strips 20.

[0123] Here, the airflow channel 1a is also part of the first cylindrical space 11a.

[0124] In this embodiment, the airflow channel 1a extends along the axial direction of the aerosol generating matrix section 100, allowing the airflow to flow along the axial direction of the aerosol generating matrix section 100, thus reducing suction resistance. Furthermore, the generated aerosol can be released through the airflow channel 1a, which helps to increase the amount of vapor per puff, thereby ensuring a good vaping experience.

[0125] In some embodiments, the smoke-generating agent loaded on the matrix strip 20 is greater than that loaded on the matrix layer 12. The matrix strip 20 is the main structure in the sheet matrix 1 that can generate aerosols, and increasing the amount of smoke-generating agent loaded in the matrix strip 20 as much as possible is beneficial to increasing the amount of smoke.

[0126] In addition, an airflow channel 1a is formed between the matrix strips 20, and the aerosol generated by the matrix strips 20 can be released through the airflow channel 1a. That is, the aerosol is more easily released, which is conducive to further increasing the amount of smoke.

[0127] In some embodiments, the specific heat capacity of the matrix strip 20 is less than that of the matrix layer 12.

[0128] It is understandable that the greater the loading of the smoke-generating agent, the greater the amount of smoke. However, the difficulty of loading the smoke-generating agent onto the carrier is also greater, and it will result in a larger specific heat capacity.

[0129] The smoke-generating agent in the matrix layer 12 has a low loading and low specific heat capacity, which is conducive to rapid smoke explosion. The smoke-generating agent in the matrix strip 20 has a high loading, which can maintain the amount of smoke in the middle of the inhalation, which is conducive to rapid smoke explosion, large amount of smoke, and good consistency during the inhalation process.

[0130] In some embodiments, the matrix layer 12 comprises hydrophobic materials, smoke generators, broadleaf fibers, water, fragrances, and nicotine and / or cooling agents.

[0131] There are no restrictions on the type of smoke-generating agent. For example, smoke-generating agents include, but are not limited to, glycerin, propylene glycol, etc.

[0132] In other words, the matrix slurry is a mixture of hydrophobic materials, smoke generators, broadleaf fibers, water, flavorings, and nicotine and / or cooling agents.

[0133] The raw materials for the broadleaf fiber here include, but are not limited to, poplar, Eucalyptus grandis, and mulberry branches.

[0134] The broadleaf fibers here are an aqueous solution with a mass fraction of 2.5%.

[0135] The surface of the matrix strip 20 may have honeycomb pores. During inhalation, this facilitates the rapid release of smoke-generating agents and fragrances.

[0136] The honeycomb pores are multiple pores on the surface of the matrix strip 20. Each pore forms an opening on the outer surface of the matrix strip 20, allowing smoke generators, broad-leaved fibers, water, fragrances, nicotine, and / or cooling agents to enter the pores. Hydrophobic materials can cover part of the pore openings.

[0137] It is understandable that the honeycomb pores of the matrix strip 20 have a certain adsorption and condensation effect on the generated aerosols, which may cause problems such as decreased suction effect and increased suction resistance. However, in this embodiment, by covering the matrix strip 20 with the matrix layer 12, the matrix layer 12 can seal some of the pores, thereby helping to reduce the adsorption and condensation effect of the honeycomb pores on the aerosols.

[0138] Hydrophobic materials are a class of materials that repel water. They can be natural or synthetic, and there are no restrictions on which type they are.

[0139] Smoke generators, broadleaf fibers, water, fragrances, and nicotine and / or cooling agents can enter the honeycomb pores, while hydrophobic materials seal off some of the pore openings.

[0140] The smoke-generating agent is the smoke-generating component in the aerosol-generating matrix segment 100. However, during the product's shelf life, the smoke-generating agent can migrate to other parts of the product, along with dissolved flavorings and other components, reducing the product's vaping quality. The smoke-generating agent is highly hygroscopic; during the product's shelf life, moisture absorption can lead to mold growth and other problems. Therefore, currently, the smoke-generating agent content in most products is approximately 15% to 25% by mass, which reduces the vaping experience.

[0141] In this embodiment, the matrix slurry also includes smoke-generating agents, fragrances and other components, which helps to increase the overall loading of smoke-generating agents, fragrances and other components on the sheet matrix 1, thereby ensuring the inhalation experience of the aerosol-generated product 1000.

[0142] In addition, the matrix layer 12 also includes hydrophobic materials. These hydrophobic materials can seal the openings of some of the pores in the matrix strip 20, restricting the movement of water vapor between the external environment and the honeycomb pores. This reduces the probability of water vapor from the external environment entering the honeycomb pores and causing the smoke generator to become damp and moldy, and / or restricts the volatilization of fragrance and other components from the honeycomb pores to the external environment, thereby improving the smoking experience.

[0143] The hydrophobic material also has a certain degree of adhesion, which makes it easy to adhere to the substrate strip 20. At the same time, the hydrophobic material does not produce an unpleasant odor when heated.

[0144] In some embodiments, the hydrophobic material includes at least one of honeysuckle, mulberry leaf, chrysanthemum, dandelion, kudzu root, ophiopogon japonicus, almond, hyacinth bean, and lycium bark.

[0145] Such hydrophobic materials are natural materials and readily available, which can further reduce the manufacturing cost of the matrix strip 20 and further reduce the possibility that the matrix strip 20 will produce unpleasant odors and / or harmful gases when heated.

[0146] In some embodiments, the matrix strip 20 comprises a main ingredient, a porous material, a smoke generator, a flavoring agent, water, and nicotine and / or a cooling agent, wherein the main ingredient comprises protein powder, starch, and fiber.

[0147] When protein powder is heated, it can generate amino acids. These amino acids react with reducing sugars to produce a series of volatile aroma substances that are beneficial to improving the quality of vaping.

[0148] Starch can be converted into small-molecule carbohydrates, which participate in regulating the acid-base balance of flue gas and play an important role in the smoothness and aroma of flue gas.

[0149] The fiber has good filtration properties and can remove some harmful substances from the flue gas.

[0150] The porous material serves as the main carrier of the matrix strip 20, thereby loading the main raw materials, smoke generators, flavorings, water, nicotine, and / or cooling agents.

[0151] The main raw materials can be one or more of the following: wheat flour, rice flour, corn flour, soybean flour, potato flour, buckwheat flour, bellflower powder, isatis root powder, almond powder, kudzu root powder, pea flour, sweet potato flour, ophiopogon japonicus powder, cassava flour, etc., or include protein powder, starch and fiber separated from these raw materials.

[0152] There are no restrictions on the raw materials for porous materials.

[0153] In some embodiments, the porous material includes at least one of the following: rush pith, bamboo fungus, freeze-dried plants, and foamed plants.

[0154] As an example, the freeze-dried plants here can be freeze-dried fruits, vegetables, etc., and the foamed plants can be foamed bamboo. It should be noted that since the substrate strip 20 needs to be heated during actual use, to minimize the generation of unpleasant odors during heating, when selecting vegetables and fruits as porous materials, varieties with lower sugar content should be chosen whenever possible. It should also be noted that the aroma carried by some plants (such as bamboo) may be unnecessary for the actual absorption by the substrate strip 20; therefore, when selecting such varieties as porous materials, deodorization treatment can be performed on them.

[0155] In this embodiment, the porous material is selected from natural plants. Compared with artificially synthesized porous materials, it can further reduce the preparation cost of the matrix strip 20. On the other hand, it can reduce the possibility that the matrix strip 20 will produce unpleasant odors and / or harmful gases when heated.

[0156] 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.

[0157] The aerosol generation matrix segment 100 provided in this application embodiment includes a sheet matrix 1. The aerosol generation matrix segment 100 is constructed as a wound structure formed by winding the sheet matrix 1. The sheet matrix 1 can be heated to generate aerosol.

[0158] This application provides an aerosol generation matrix segment. Please refer to Figures 3 to 7. The aerosol generation matrix segment 100 includes a sheet matrix 1. The sheet matrix 1 includes a base layer 10 and a matrix strip 20. The base layer 10 has a matrix strip 20 disposed on at least one side along the thickness direction of the sheet matrix 1.

[0159] Please refer to Figures 3 to 7. The sheet-like matrix 1 includes a base layer 10 and matrix strips 20 stacked together. The matrix strips 20 are laid on the base layer 10 to form the sheet-like matrix 1. The sheet-like matrix 1 with the matrix strips 20 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 or other materials. The aerosol generated by the sheet-like matrix 1 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 size of the matrix strips 20, thereby improving the stability of the suction resistance.

[0160] Here, the matrix strip 20 is laid on the base layer 10, which allows for control over the distribution of the matrix strip 20. 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.

[0161] It should be noted that the matrix strip 20 in the aerosol generation matrix segment 100 of this application embodiment can be any type of matrix strip 20 mentioned in this application embodiment, or it can be a combination of different matrix strips 20.

[0162] The ability of sheet matrix 1 to be heated to generate aerosol means that either matrix strip 20 can be heated to generate aerosol, or both base layer 10 and matrix strip 20 can be heated to generate aerosol.

[0163] The matrix strip 20 can be laid on the surface of the base layer 10, or a portion of the matrix strip 20 can be embedded in the base layer 10.

[0164] The aerosol generation matrix segment 100 of this embodiment is configured as a wound structure formed by winding a sheet matrix 1. The sheet matrix 1 includes a base layer 10 and matrix strips 20 stacked together. This allows for the formation of stable air channels by adjusting the size of the matrix strips 20, thereby improving the stability of the suction resistance. Furthermore, the matrix strips 20, laid on the base layer 10, help reduce displacement caused by vibration or other factors during transportation, storage, or use, further improving the stability of the suction resistance. In addition, the matrix strips 20 are a homogeneous system, which facilitates the continuous and uniform generation of aerosols.

[0165] In some embodiments, please refer to Figures 3 to 7, the base layer 10 includes a substrate layer, which includes plant fiber fabric, non-woven fabric and / or metal foil.

[0166] In other words, the substrate layer can be plant fiber fabric, non-woven fabric, metal foil, or both non-woven fabric and metal foil.

[0167] 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.

[0168] Plant fiber fabrics and non-woven fabrics have high air permeability, which increases air permeability; 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.

[0169] In other embodiments, please refer to Figures 3 to 7, the base layer 10 includes a matrix layer, which is constructed by forming a matrix slurry by casting, spraying or dipping, and the matrix layer can be heated to generate an aerosol.

[0170] Both the matrix layer and matrix strip 20 can be heated to generate aerosols, which is conducive to rapid smoke explosion and large smoke volume. Furthermore, the aerosols generated by the matrix layer and matrix strip 20 can mix and interact with each other, which can increase the comfort of the aerosols and improve the inhalation quality.

[0171] 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.

[0172] This application mainly uses casting and extrusion processes. The matrix layer is formed by casting matrix slurry, which has high production efficiency. The matrix strips 20 are adhered to the matrix layer. By adjusting the size and distribution of the matrix strips 20, sufficient air channels can be formed. After the matrix strips 20 are fixed, the relative position changes little, which helps to reduce the displacement caused by vibration and other factors, thereby improving the stability of suction resistance.

[0173] 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.

[0174] The broad-leaved fibers here include, but are not limited to, poplar, Eucalyptus grandis, and mulberry branches.

[0175] It is understandable that broadleaf plant fibers are natural plant materials, which can reduce the preparation cost of aerosol generation matrix particles and reduce the possibility that aerosol generation matrix particles will produce unpleasant odors and / or harmful gases when heated.

[0176] The base material includes plant materials, fillers, and adhesives.

[0177] 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.

[0178] For example, the filler includes one or more of calcium carbonate, calcium chloride, magnesium chloride, calcium phosphate, etc.

[0179] For example, the adhesive includes one or more of carrageenan, konjac gum, locust bean gum, guar gum, xanthan gum, sodium alginate, agar, etc.

[0180] In some embodiments, by weight, 30-35 parts of base material, 20-25 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%.

[0181] Here, a certain amount of water can also be added to the above mixed ingredients as needed, for example, 10-15 parts water.

[0182] 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.

[0183] 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, the substrate strips 20 or aerosol-generated substrate particles 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 the aerosol-generated substrate particles or substrate strips 20 can be uniform, irregular, or intermittent strip distribution.

[0184] It should be noted that the number of layers of the sheet matrix 1 is not limited here.

[0185] In some embodiments, as shown in Figures 8 and 9, the number of winding layers of the sheet-like matrix 1 is a single layer.

[0186] 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.

[0187] 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.

[0188] For example, in an embodiment where the number of winding layers of the sheet matrix 1 is a single layer, the thickness of the base layer 10 can be increased, the particle size of the aerosol-generating matrix particles can be increased, or the diameter of the matrix strip 20 can be increased. 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.

[0189] In some embodiments, as shown in Figures 10 and 11, the sheet-like matrix 1 has multiple winding layers.

[0190] In the embodiments of this application, "multi-layer" refers to two or more layers.

[0191] 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.

[0192] 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, the particle size of the aerosol-generated matrix particles can be reduced, or the diameter of the matrix strip 20 can be reduced, which can be applied to different heating methods.

[0193] 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.

[0194] In some embodiments, please refer to FIG9, the sheet matrix 1 is wound into a circle, the base layer 10 is wound into a second cylindrical space 10a, and the matrix strip 20 is wrapped inside the second cylindrical space 10a.

[0195] Therefore, by adjusting the size of the matrix strip 20, a stable air passage can be formed, thereby improving the stability of the suction resistance. Furthermore, after the matrix strip 20 is 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 suction resistance. In addition, the matrix strip 20 is a homogeneous system, which is beneficial for the continuous and uniform generation of aerosols.

[0196] In some embodiments, referring to FIG9, each matrix strip 20 extends along the central axis of the aerosol generating matrix segment 100, and each matrix strip 20 is arranged at circumferential intervals along the second cylindrical space 10a.

[0197] In this way, an airflow channel 1a can be formed between each matrix strip 20, and the airflow channel 1a is also part of the second cylindrical space 10a.

[0198] In this embodiment, each matrix strip 20 extends axially along the aerosol generating matrix section, allowing airflow to flow axially along the aerosol generating matrix section and reducing suction resistance. Furthermore, the generated aerosol can be released through the airflow channel 1a, which helps increase the amount of vapor per puff, thereby ensuring a good vaping experience.

[0199] In some embodiments, as shown in Figure 9, an airflow channel is formed between at least two adjacent matrix strips 20.

[0200] Here, airflow channels can be formed between any two adjacent matrix strips 20, or airflow channels can be formed between some adjacent matrix strips 20.

[0201] The airflow channel 1a extends along the axial direction of the aerosol generating matrix section 100 and passes through both ends of the aerosol generating matrix section 100. When aerosol is drawn in, the airflow can pass through the airflow channel 1a along the axial direction of the aerosol generating matrix section 100. The generated aerosol is released through the airflow channel 1a and the airflow carries it away from the aerosol generating matrix section 100. This helps to reduce the suction resistance of the aerosol generating product 1000 and improve the suction experience of the aerosol generating product 1000.

[0202] In some embodiments, the thickness of the matrix layer is 0.2 mm to 1.5 mm.

[0203] 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.

[0204] 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.

[0205] 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.

[0206] In some embodiments, the density of the matrix layer is 0.6 g / cm³. 3 -0.9g / cm 3 .

[0207] 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.

[0208] 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.

[0209] In some embodiments, the density of the substrate layer is 0.5 g / cm³. 3 -1g / cm 3 .

[0210] 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 / cm3 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.

[0211] 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.

[0212] In some embodiments, please refer to Figures 3 to 7, the base layer 10 further includes a substrate layer, which is constructed by casting a substrate slurry onto the substrate layer. The substrate layer includes plant fiber fabric, non-woven fabric and / or metal foil.

[0213] In other words, the substrate layer can be non-woven fabric, metal foil, or both.

[0214] 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.

[0215] Non-woven fabric can carry fragrance and increase breathability; in addition, non-woven fabric also has the functions of cushioning and elasticity, which is beneficial to the cooperation between the heating component and the aerosol generation matrix section 100.

[0216] Here, by setting the base layer 10 to include a substrate layer and a matrix layer, on the one hand, it facilitates the casting of the matrix layer and also has a supporting role and / or fragrance carrying, buffering, and elasticity role. On the other hand, both the matrix layer and the matrix strip 20 can be heated to generate aerosols, which is conducive to the rapid explosion of smoke and a large amount of smoke. Moreover, the aerosols generated by the matrix layer and the matrix strip 20 can mix and interact with each other, which can increase the comfort of the aerosol and improve the smoking quality.

[0217] In some embodiments, a substrate layer is formed by casting on both sides of the sheet matrix 1 along the thickness direction.

[0218] This is beneficial for increasing the loading of effective substances in the sheet matrix 1, and when one layer is heated, the other layer will be preheated, which is conducive to the continuous and rapid bursting of smoke.

[0219] Here, the number of matrix layers, effective material loading, density, and thickness on both sides of the substrate layer along the thickness direction of the sheet matrix 1 can be the same or different.

[0220] Here, by casting the substrate layer on both sides along the thickness direction of the sheet matrix 1 to form a matrix layer, it is beneficial to increase the loading of effective substances, thereby improving the amount of smoke.

[0221] In some embodiments, as shown in Figures 5 and 6, substrate strips 20 are provided on both sides of the substrate layer 10 along the thickness direction of the sheet-like substrate 1.

[0222] This is beneficial for increasing the loading of effective substances in the sheet matrix 1, and when one layer is heated, the other layer will be preheated, which is conducive to the continuous and rapid bursting of smoke.

[0223] Here, the effective material loading, density, and thickness of the substrate strips 20 on both sides of the substrate layer along the thickness direction of the sheet matrix 1 can be the same or different.

[0224] Here, by providing matrix strips 20 on both sides of the base layer 10 along the thickness direction of the sheet matrix 1, it is beneficial to increase the loading of effective substances, thereby increasing the amount of smoke.

[0225] In some embodiments, as shown in FIG7, the base layer 10 has two layers, and the matrix strip 20 is disposed between the two base layers 10.

[0226] This facilitates the formation of a stable airway between the matrix strip 20 and the two base layers 10, and the two base layers 10 provide support, making it easier for the sheet matrix 1 to be rolled up, thereby improving the roundness of the aerosol generation matrix segment 100 of the sheet matrix 1.

[0227] In some embodiments, the matrix strip 20 is configured to be formed by extrusion of extruded raw materials, and the matrix strip 20 can be heated to generate an aerosol.

[0228] The matrix strip 20 is constructed by extruding raw materials. The extruded matrix strip 20 is a homogeneous system that can continuously and uniformly generate aerosols. After atomization, it will not fall off and affect the air passage or contaminate the aerosol generation device, thus improving the user experience. In addition, the extrusion process is relatively simple, has a large production capacity, stable quality, and high production efficiency.

[0229] In some embodiments, the extruded raw materials include the main raw material, glycerin, flavoring, and nicotine preparations and / or cooling agents.

[0230] For example, the main raw materials include one or more of wheat flour, rice flour, corn flour, soybean flour, potato flour, kudzu root flour, pea flour, sweet potato flour, ophiopogon japonicus flour, cassava flour, etc., or protein powder, starch, fiber, etc. obtained by separating the above raw materials.

[0231] In some embodiments, by weight, 50-70 parts of main raw material, 25-30 parts of glycerin, 15-25 parts of flavoring, and 1-2 parts of nicotine preparation and / or cooling agent are mixed to form an extrusion raw material.

[0232] Here, a certain amount of water can also be added to the above mixed ingredients as needed, for example, 10-15 parts water.

[0233] In this embodiment, the extrusion raw material with the above-mentioned ratio has good flowability, allowing for better extrusion and enabling glycerin and fragrances to be mixed in the extrusion raw material as much as possible, thereby increasing the loading of effective substances in the matrix strip 20. It should be noted that any other suitable ratio can also be used to prepare the extrusion raw material.

[0234] In some embodiments, the maximum diameter of the cross-section of the matrix strip 20 is 1 mm to 2 mm.

[0235] The maximum diameter of the cross-section of the substrate strip 20 can be any one of 1mm, 1.2mm, 1.3mm, 1.5mm, 1.6mm, 1.8mm, or 2mm, or any value between two of them.

[0236] Here, the maximum diameter refers to the maximum distance between two points on the cross-section of the matrix strip 20.

[0237] The cross section of the matrix strip 20 refers to the section obtained on the section perpendicular to the extension direction of the matrix strip 20.

[0238] Here, the cross-sectional shape of the matrix strip 20 is not limited. For example, the cross-sectional shape of the matrix strip 20 can be circular, elliptical, polygonal, or other irregular shapes.

[0239] In this embodiment, the matrix strip 20 has a small cross-section. When the matrix strip 20 is actually applied to the aerosol generation product 1000, it helps to increase the filling amount, thereby improving the suction experience of the aerosol generation product 1000.

[0240] In some embodiments, the degree of expansion of the matrix strip 20 is greater than or equal to 0.75.

[0241] The degree of expansion of the matrix strip 20 can be any one of 0.75, 0.78, 0.8, 0.82, 0.85, 0.88, 0.9, 0.92, 0.95, 0.98, 1 or any value between two of them.

[0242] The matrix strip 20 is extruded and expanded to form a porous structure. By setting the degree of expansion of the matrix strip 20 to be greater than or equal to 0.75, it is beneficial to the drying of the matrix strip 20 and the rapid release of smoke components and fragrances during inhalation.

[0243] In some embodiments, there are multiple sheet-like substrates 1, and multiple sheet-like substrates 1 are stacked and then wound to form an aerosol to generate a substrate segment 100.

[0244] 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.

[0245] In this embodiment, the multiple sheet-like matrix layers can be the same or different.

[0246] It should be noted that there are no restrictions on the arrangement of multiple sheet-like matrix layers.

[0247] For example, in some embodiments, the matrix strips 20 of two adjacent sheet-like matrix 1 are arranged close to each other. That is, the matrix strips 20 are stacked facing each other, which is beneficial to the adhesion reliability of the matrix strips 20 and improves the roundness of the aerosol generating medium segment during the winding process.

[0248] In other embodiments, the base layers 10 of two adjacent sheet-like substrates 1 are disposed close to each other. That is, the base layers 10 are stacked face to face, especially when aluminum foil material is used, because its rapid heat conduction allows the interior of the substrate strip 20 to be heated more fully.

[0249] In some embodiments, the base layer 10 of one of two adjacent sheet-like substrates 1 is positioned close to the substrate strip 20 of the other. This is beneficial for airway stability and heat transfer.

[0250] An embodiment of this application provides a method for preparing an aerosol-generating matrix segment, the method comprising the following steps.

[0251] Step 1: Prepare extrusion raw materials by mixing the main raw materials, glycerin, flavorings, nicotine preparations and / or cooling agents evenly to obtain extrusion raw materials.

[0252] By weight, 50-70 parts of main raw material, 25-30 parts of glycerin, 15-25 parts of flavoring, and 1-2 parts of nicotine preparation and / or cooling agent are mixed to form extrusion raw material.

[0253] Here, a certain amount of water can also be added to the above mixed ingredients as needed, for example, 10-15 parts water.

[0254] For example, the main raw materials include one or more of wheat flour, rice flour, corn flour, soybean flour, potato flour, kudzu root flour, pea flour, sweet potato flour, ophiopogon japonicus flour, cassava flour, etc., or protein powder, starch, fiber, etc. obtained by separating the above raw materials.

[0255] In this embodiment, the extrusion raw material with the above-mentioned ratio has good flowability, allowing for better extrusion and enabling glycerin and fragrances to be mixed in the extrusion raw material as much as possible, thereby increasing the loading of effective substances in the matrix strip 20. It should be noted that any other suitable ratio can also be used to prepare the extrusion raw material.

[0256] Step 2: 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.

[0257] Here, there is no particular order for the first and second steps, and they can be performed simultaneously.

[0258] By weight, 30-35 parts of base material, 20-25 parts of glycerin, 10-15 parts of broadleaf fiber solution, 10-30 parts of flavoring, and 1-2 parts of nicotine preparation and / or cooling agent are mixed to form a matrix slurry, wherein the broadleaf fiber solution is an aqueous solution with a mass fraction of 2.5%.

[0259] The base material includes plant materials, fillers, and adhesives.

[0260] 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.

[0261] For example, the filler includes one or more of calcium carbonate, calcium chloride, magnesium chloride, calcium phosphate, etc.

[0262] For example, the adhesive includes one or more of carrageenan, konjac gum, locust bean gum, guar gum, xanthan gum, sodium alginate, agar, etc.

[0263] 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.

[0264] For example, the substrate layer can be heated using a three-stage hot air heating system, with the three stages having temperatures of 70-75℃, 75-80℃, and 90-95℃ respectively. Before the substrate layer enters the heating stage, aerosol-generating substrate particles are laid on the surface of the substrate layer to adhere to it. Depending on the requirements for different smoke volumes, continuous number of puffs, winding methods, and other indicators, the distribution of the aerosol-generating substrate particles can be uniform, irregular, or intermittent strip-like.

[0265] Step 3: Casting. The slurry obtained in Step 2 is cast onto 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.

[0266] The casting machine employs a three-stage hot air heating system, with temperatures of 70–75°C, 75–80°C, and 90–95°C respectively. Before the casting enters the heating stage, the particles obtained in step S103 are uniformly dispersed on the surface of the cast thin layer, allowing them to adhere to the thin layer. Depending on requirements such as smoke volume, number of continuous puffs, and winding method, the particle distribution can be irregular saturated distribution or intermittent strip distribution (equal spacing, unequal spacing, etc.). As an example, the positive electrode current collector can be made of metal foil, conductive polymer material, carbon material, or composite current collector. For instance, as a metal foil, pure metals, alloys, or surface-treated metals can be used, including but not limited to stainless steel, copper, aluminum, nickel, titanium, or silver.

[0267] 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.

[0268] For example, the weight of the coating layer when it is a nonwoven fabric is 12 to 20 g.

[0269] For example, when the coating layer is aluminum foil, the thickness is 0.01 to 0.015 mm.

[0270] 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.

[0271] Step 4: Extrusion. The extruded material obtained in Step 1 is extruded through an extrusion device to obtain matrix strip 20.

[0272] Here, there is no particular requirement for the order of steps three and four, and they can be performed simultaneously.

[0273] For example, the extrusion temperature is 120°C-135°C.

[0274] For example, the screw speed of the extrusion device is 60 rpm to 100 rpm.

[0275] For example, the extrusion pressure is 1.0 MPa-1.5 MPa.

[0276] For example, the maximum diameter of the cross-section of the matrix strip 20 is 1 mm to 2 mm.

[0277] The maximum diameter of the cross-section of the substrate strip 20 can be any one of 1mm, 1.2mm, 1.3mm, 1.5mm, 1.6mm, 1.8mm, or 2mm, or any value between two of them.

[0278] Here, the maximum diameter refers to the maximum distance between two points on the cross-section of the matrix strip 20.

[0279] The cross section of the matrix strip 20 refers to the section obtained on the section perpendicular to the extension direction of the matrix strip 20.

[0280] Here, the cross-sectional shape of the matrix strip 20 is not limited. For example, the cross-sectional shape of the matrix strip 20 can be circular, elliptical, polygonal, or other irregular shapes.

[0281] In this embodiment, the matrix strip 20 has a small cross-section. When the matrix strip 20 is actually applied to the aerosol generation product 1000, it helps to increase the filling amount, thereby improving the suction experience of the aerosol generation product 1000.

[0282] In some embodiments, as shown in Figures 3 to 7, the degree of expansion of the matrix strip 20 is greater than or equal to 0.75.

[0283] The degree of expansion of the matrix strip 20 can be any one of 0.75, 0.78, 0.8, 0.82, 0.85, 0.88, 0.9, 0.92, 0.95, 0.98, 1 or any value between two of them.

[0284] The matrix strip 20 is extruded and expanded to form a porous structure. By setting the degree of expansion of the matrix strip 20 to be greater than or equal to 0.75, it is beneficial to the drying of the matrix strip 20 and the rapid release of smoke components and fragrances during inhalation.

[0285] For example, the die of the extrusion device has 80-100 holes distributed in a planar pattern. This helps to improve extrusion efficiency.

[0286] Step 5: Composite, the matrix strip 20 obtained by extrusion in step 4 is adhered to the matrix layer obtained in step 3 before it is dried, to obtain sheet matrix 1.

[0287] Here, the number and density of the substrate strips 20 are determined by the number and density of the substrate strips 20. Multiple extrusion units can also be used in parallel, with each extrusion unit producing the same or different number and density of substrate strips 20, and the spacing between them can also be the same or different. The substrate strips 20 are dried together with the substrate layer to obtain the sheet-like substrate 1.

[0288] Step 6: Rolling. The sheet matrix 1 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.

[0289] For example, the substrate is cut into thin sheets of varying widths of 1.5–2.5 cm, rolled into cylinders in different directions (1–3 turns), and then cut into 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 of the substrate strip 20.

[0290] Through the above measures, the average smoke volume of 1001-3 puffs in the aerosol generation matrix section is greater than 4.0 mg / puff, the average smoke volume of 1-13 puffs is greater than 5.0 mg / puff, the effective utilization rate of VG / PG / NIC reaches more than 70%, and the RSD of the total smoke volume and total NIC release of the same number of puffs in different aerosol generation matrix sections is less than 10%.

[0291] Step 7: Assembly. Assemble the aerosol generation matrix section 100 obtained in step 6 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 center needle heating.

[0292] In one embodiment, referring to Figure 12, the aerosol generation matrix section 100, the cooling section 300, and the filtration section 200 can be coaxially arranged cylinders, and the second direction is the axial direction of the aerosol generation matrix section 100, the cooling section 300, and the filtration section 200.

[0293] 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 along the second direction.

[0294] In one embodiment, referring to FIG12, 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.

[0295] The sealing element 500 is a membrane through which airflow can pass.

[0296] For example, the sealing element 500 can be cigarette paper, non-woven fabric, polymer, etc., which have good air permeability.

[0297] 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).

[0298] 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 its aerosol generating matrix particles 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 its aerosol generating matrix particles 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.

[0299] 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 aerosol generating matrix particles 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 the aerosol generating device draws in aerosol generating products 1000 of different flavors, cross-contamination of flavors is virtually eliminated.

[0300] 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.

[0301] In one embodiment, the cooling section 300 has an airflow channel (not shown). The aerosol generating matrix section 100 enters the airflow channel and is cooled within the airflow channel.

[0302] In other embodiments, the cooling section 300 may also adopt other structural forms, as long as it can achieve the cooling effect.

[0303] 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.

[0304] 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.

[0305] In one embodiment, referring to FIG12, 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 the second direction.

[0306] 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.

[0307] The aerosol generating product 1000 has a distal lip end and a proximal lip end at its two ends along the second 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.

[0308] 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.

[0309] In one embodiment, referring to Figure 12, 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 facilitates user operation.

[0310] 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.

[0311] This application provides a method for preparing an aerosol generation matrix segment 100, as shown in Figure 13. The method includes the following steps:

[0312] S100: Multiple substrate strips are spaced apart on the substrate layer along a first direction, the first direction intersecting the axial direction of the substrate strips.

[0313] S200: The matrix slurry is cast onto the side of the substrate layer where the matrix strip is located.

[0314] S300: Dry the matrix slurry to obtain a sheet matrix.

[0315] S400: The sheet-like matrix is ​​wound along the first direction to obtain the aerosol generation matrix segment 100.

[0316] Specifically, the sheet-like matrix 1 can be cut into thin slices of varying widths from 1.5cm to 2.5cm, then rolled into columnar structures along different directions, and then cut into aerosol-generating matrix segments 100 of 12mm to 20mm in length.

[0317] For example, the first direction is the direction shown as L1 in Figure 1. The first direction is parallel to the cross-section of the matrix strip 20.

[0318] The substrate layer 11 has two sides in the thickness direction, and the matrix strip 20 is disposed on one side, and the matrix slurry is also cast on that side.

[0319] When the substrate layer 11 is made of metal foil (e.g., aluminum foil), the thickness of the substrate layer 11 can be any value in the range of 0.01 mm to 0.015 mm.

[0320] When the substrate layer 11 is made of non-woven fabric, the weight of the non-woven fabric can be any value between 12g and 50g.

[0321] In the preparation method of the aerosol generation matrix segment 100 in this embodiment, the matrix strips 20 are relatively uniformly distributed on the substrate layer 11 and wrapped by the matrix layer 12, thereby being relatively stably fixed on the substrate layer 11. The uniformity of the suction effect of the heterogeneous aerosol generation matrix segment 100 is increased and the suction resistance is relatively stable. At the same time, the matrix strips 20 are wrapped by the matrix layer 12, that is, the honeycomb pores on the surface of the matrix strips 20 can be covered by the matrix layer 12, thereby reducing the adsorption and condensation effect of the honeycomb pores on the generated aerosol. This helps to ensure the suction effect of the aerosol generation product 1000 and reduce the suction resistance of the aerosol generation product 1000.

[0322] Furthermore, the matrix strip 20 can be fixed relatively stably to the substrate layer 11, thereby reducing the probability of the matrix strip 20 detaching from the substrate layer 11 and falling into the cooling section 300. One end of the aerosol generation matrix section 100 does not need to be sealed, which helps to simplify the production process of the aerosol generation matrix section 100 and reduce the production cost of the aerosol generation matrix section 100.

[0323] In some embodiments, multiple matrix strips are spaced apart on the substrate layer along a first direction, including:

[0324] The substrate layer is placed at the discharge port of the extrusion equipment;

[0325] Control the extrusion equipment to extrude matrix strips;

[0326] The number of discharge ports is multiple, and each discharge port is spaced apart along the first direction.

[0327] For example, the number of discharge ports is any number between 80 and 100.

[0328] After the extrusion equipment extrudes the matrix strip 20, the matrix strip 20 can be directly dispersed in a planar manner on the substrate layer 11 and can be distributed at intervals on the substrate layer 11 along the first direction. In this way, the arrangement step of the matrix strip 20 is eliminated, which helps to improve the production efficiency of the sheet matrix 1.

[0329] In addition, after the extrusion equipment extrudes the matrix strip 20, the matrix strip can be placed on the substrate layer 11 without further transfer. This effectively avoids the problem of matrix strip 20 breaking during the transfer process, thereby improving the yield of matrix strip 20.

[0330] In some embodiments, controlling the extrusion equipment to extrude a matrix strip includes:

[0331] The extrusion temperature of the extrusion equipment is controlled at 120℃~135℃.

[0332] For example, the extrusion temperature can be 120°C, 122°C, 124°C, 126°C, 128°C, 130°C, 132°C, 134°C, 135°C, etc.

[0333] Controlling the extrusion temperature within this range helps ensure stable extrusion and molding of the matrix strip 20, and improves the quality and stability of the matrix strip 20.

[0334] Specifically, the extrusion temperature is controlled by adjusting the external heating of the barrel and the frictional shearing action between the extrusion screw and the inner wall of the barrel. Under the rotation of the extrusion screw, the extruded raw material is conveyed forward through the frictional shearing action between the inner wall of the barrel and the surface of the extrusion screw, and further compacted. Finally, it is extruded uniformly, at a constant temperature, in a constant quantity, and at a constant pressure, and after shaping, matrix strip 20 is obtained.

[0335] In some embodiments, controlling the extrusion equipment to extrude a matrix strip includes:

[0336] The rotational speed of the extrusion screw in the extrusion equipment is controlled to be 60 rpm to 100 rpm.

[0337] For example, the rotational speed can be 60 rpm, 65 rpm, 70 rpm, 75 rpm, 80 rpm, 85 rpm, 90 rpm, 95 rpm, 100 rpm, etc.

[0338] It should be noted that rpm refers to revolutions per minute. 60 rpm means that the extrusion screw rotates at a speed of 60 revolutions per minute.

[0339] Controlling the screw speed within this range is beneficial for the stable extrusion of the matrix strip 20, and also for the stability of the matrix strip 20 during the extrusion process.

[0340] In some embodiments, controlling the extrusion equipment to extrude a matrix strip includes:

[0341] The extrusion pressure of the extrusion equipment is controlled to be 1.0 MPa to 1.5 MPa.

[0342] For example, the extrusion pressure can be 1.0MPa, 1.05MPa, 1.1MPa, 1.15MPa, 1.2MPa, 1.25MPa, 1.3MPa, 1.35MPa, 1.4MPa, 1.45MPa, 1.5MPa, etc.

[0343] Controlling the extrusion pressure within this range helps to keep the density and expansion degree of the matrix strip 20 within a reasonable range. Continuous extrusion of the matrix strip 20 results in better consistency between each matrix strip 20.

[0344] In some embodiments, the dried matrix slurry includes:

[0345] The matrix slurry is heated and dried sequentially using a first stage of hot air, a second stage of hot air, and a third stage of hot air, with the temperatures of the first stage of hot air, the second stage of hot air, and the third stage of hot air increasing in that order.

[0346] The matrix slurry is dried using a three-stage hot air heating process, which allows the matrix slurry to solidify into matrix layer 12. The temperature of the first stage of hot air should not be too high to prevent the surface of the matrix slurry from forming a crust, which would hinder the outward diffusion of moisture from the matrix slurry.

[0347] After being heated and dried by three stages of hot air, the moisture content in the matrix slurry can be reduced to less than or equal to 8%.

[0348] In this embodiment, the matrix slurry is dried by heating with three stages of hot air at progressively increasing temperatures. The resulting matrix layer 12 has a relatively low moisture content and better performance, which is beneficial for improving the suction experience of the aerosol generation matrix section 100.

[0349] In some embodiments, the temperature of the first stage of hot air is 70°C-75°C. For example, it can be 70°C, 71°C, 72°C, 73°C, 74°C, 75°C, etc. The first stage of hot air is relatively suitable within this temperature range, which helps to reduce the probability of crusting on the surface of the matrix slurry.

[0350] In some embodiments, the temperature of the second stage of hot air is 80°C-85°C. For example, it can be 80°C, 81°C, 82°C, 83°C, 84°C, 85°C, etc. Within this temperature range, the moisture inside the matrix slurry can also be heated and dried, allowing it to diffuse outwards.

[0351] In some embodiments, the temperature of the third stage hot air is 95°C-98°C. For example, it can be 95°C, 96°C, 97°C, 98°C, etc. Within this temperature range, the third stage hot air helps to reduce the overall moisture content of the matrix slurry, and helps to reduce the overall moisture content of the matrix slurry to less than or equal to 8%.

[0352] In some embodiments, before casting the matrix slurry onto the side of the substrate layer where the matrix strip is provided, the method further includes:

[0353] Preparation of matrix slurry: Hydrophobic plant powder, smoke generator, broadleaf fiber, water, fragrance, and nicotine and / or cooling agent are mixed to obtain matrix slurry.

[0354] The hydrophobic plant powder here can be obtained by cutting the hydrophobic material mentioned above. Specifically, the hydrophobic material mentioned above is crushed and sieved through a sieve with a mesh size of 100 or larger to obtain the hydrophobic plant powder, such as powder sieved through a sieve with a mesh size of 160-200.

[0355] The outer surface of the matrix strip 20 has honeycomb pores, which facilitates the rapid release of smoke-generating agents and fragrances during inhalation.

[0356] The honeycomb pores are multiple pores on the outer surface of the matrix strip 20. Each pore forms an opening on the outer surface of the matrix strip 20, allowing smoke generators, broad-leaved fibers, water, fragrances, nicotine, and / or cooling agents to enter each pore. The hydrophobic plant powder is formed into a hydrophobic structure, which can cover part of the pore openings.

[0357] Smoke-generating agents, broad-leaved fibers, water, flavorings, and nicotine and / or cooling agents can enter the honeycomb pores, while the hydrophobic structure seals off some of the pore openings.

[0358] The smoke-generating agent is the smoke-generating component in the aerosol-generating matrix segment 100. However, during the product's shelf life, the smoke-generating agent can migrate to other parts of the product, along with dissolved flavorings and other components, reducing the product's vaping quality. The smoke-generating agent is highly hygroscopic; during the product's shelf life, moisture absorption can lead to mold growth and other problems. Therefore, currently, the smoke-generating agent content in most products is approximately 15% to 25% by mass, which reduces the vaping experience.

[0359] In this embodiment, the matrix slurry also includes smoke-generating agents, fragrances and other components, which helps to increase the overall loading of smoke-generating agents, fragrances and other components on the sheet matrix 1, thereby ensuring the inhalation experience of the aerosol-generated product 1000.

[0360] In addition, the matrix slurry also includes hydrophobic plant powder. After drying and molding, the hydrophobic plant powder forms a hydrophobic structure. The hydrophobic structure can seal the openings of some of the pores of the matrix strip 20, restricting the movement of water vapor between the external environment and the honeycomb pores. This reduces the probability of water vapor from the external environment entering the honeycomb pores and causing the smoke generator to become damp and moldy, and / or restricts the volatilization of fragrance and other components in the honeycomb pores to the external environment, thereby improving the smoking experience.

[0361] In some embodiments, the matrix slurry comprises, by total weight, the following:

[0362] 30-35 parts hydrophobic plant powder, 20-25 parts smoke generator, 10-15 parts broadleaf fiber, 10-15 parts water, 15-30 parts fragrance, and 1-2 parts nicotine and / or cooling agent, wherein the broadleaf fiber is an aqueous solution with a mass fraction of 2.5%.

[0363] In this embodiment, the proportions of the components of the matrix slurry help to further improve the suction effect of the aerosol generation matrix segment 100.

[0364] In some embodiments, before the plurality of substrate strips are spaced apart on the substrate layer along a first direction, the method further includes:

[0365] Preparation of extrusion raw materials: The main raw materials, substrate, smoke generator, flavoring, water and nicotine and / or cooling agent are mixed to obtain the extrusion raw materials, wherein the main raw materials include protein powder, starch and fiber;

[0366] The extruded raw materials are prepared into matrix strips.

[0367] When protein powder is heated, it can generate amino acids. These amino acids react with reducing sugars to produce a series of volatile aroma substances that are beneficial to improving the quality of vaping.

[0368] Starch can be converted into small-molecule carbohydrates, which participate in regulating the acid-base balance of flue gas and play an important role in the smoothness and aroma of flue gas.

[0369] The fiber has good filtration properties and can remove some harmful substances from the flue gas.

[0370] The substrate is the main carrier of the matrix strip 20, thereby loading the main raw materials, smoke generators, flavorings, water, nicotine and / or cooling agents, etc.

[0371] The main raw materials can be one or more of the following: wheat flour, rice flour, corn flour, soybean flour, potato flour, buckwheat flour, bellflower powder, isatis root powder, almond powder, kudzu root powder, pea flour, sweet potato flour, ophiopogon japonicus powder, cassava flour, etc., or include protein powder, starch and fiber separated from these raw materials.

[0372] In some embodiments, the extruded raw materials, expressed as the total weight of the extruded raw materials, include:

[0373] 50-70 parts main ingredient, 20-40 parts base material, 35-50 parts smoke generator, 20-30 parts flavoring, 15-25 parts water, and 2-3 parts nicotine and / or cooling agent.

[0374] In this embodiment, the proportion of each component of the extrusion raw material helps to further improve the suction effect of the matrix strip 20.

[0375] In some embodiments, the method further includes, prior to preparing the extrusion feedstock:

[0376] The porous material is crushed and sieved through a 60-mesh sieve to obtain the substrate.

[0377] Here, the substrate has a porous structure, which allows for better adsorption of main raw materials, smoke generators, flavorings, water, nicotine and / or cooling agents, thereby improving the loading capacity of these components.

[0378] In some embodiments, the porous material includes at least one of rush pith, bamboo fungus, freeze-dried plants, and foamed plants.

[0379] As an example, the freeze-dried plants here can be freeze-dried fruits, vegetables, etc., and the foamed plants can be foamed bamboo. It should be noted that since the substrate strip 20 needs to be heated during actual use, to minimize the generation of unpleasant odors during heating, when selecting vegetables and fruits as porous materials, varieties with lower sugar content should be chosen whenever possible. It should also be noted that the aroma carried by some plants (such as bamboo) may be unnecessary for the actual absorption by the substrate strip 20; therefore, when selecting such varieties as porous materials, deodorization treatment can be performed on them.

[0380] In this embodiment, the porous material is selected from natural plants. Compared with artificially synthesized porous materials, it can further reduce the preparation cost of the matrix strip 20. On the other hand, it can reduce the possibility that the matrix strip 20 will produce unpleasant odors and / or harmful gases when heated.

[0381] The heating component heats the aerosol generating matrix section 100, causing it to release aerosols. The user inhales the aerosol in batches, meaning they inhale one breath of aerosol, stop inhaling, and then inhale the next breath intermittently. The initial inhalation period refers to the initial use of the aerosol generating matrix section 100, with the first few inhalations (e.g., 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 (e.g., the final 1-5). 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.

[0382] The aerosol generating matrix segment 100 prepared by the preparation method of the present application has an average smoke amount of more than 4.0 mg / pom for the first 1 to 3 puffs, an average smoke amount of more than 5.5 mg / pom for the first 1 to 13 puffs, an effective utilization rate of VG / PG / NIC of more than 75%, and a consistency RSD of less than 10% for the total smoke amount and total NIC release of the same number of puffs in different aerosol generating matrix segments 100.

[0383] It should be noted that PG stands for glycerol, VG for propylene glycol, and NIC for nicotine. This application provides an aerosol generation matrix segment 100, which is prepared by the preparation method of the aerosol generation matrix segment 100 described in any of the above embodiments.

[0384] 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 the transport section or all 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, the aerosol generation matrix segment comprising a sheet-like matrix, the aerosol generation matrix segment being constructed as a wound structure formed by winding the sheet-like matrix, the sheet-like matrix comprising: Substrate layer; Multiple matrix strips are spaced apart on one side of the substrate layer along the winding direction of the sheet matrix, and the axial direction of the matrix strips intersects the winding direction. The matrix strips can be heated to generate aerosols. The matrix layer is constructed by casting a matrix slurry, and the matrix layer covers at least a portion of the outer sidewall of the matrix strip.

2. The aerosol generation matrix segment according to claim 1, wherein, The substrate layer is made of plant fiber fabric, non-woven fabric, or metal foil; and / or, The thickness of the matrix layer is 0.3 mm to 2.5 mm; and / or, The diameter of the matrix strip is 1mm-2mm; and / or, The degree of expansion of the matrix strip is not less than 75%.

3. The aerosol generation matrix segment according to claim 1, wherein, The surface of the matrix strip furthest from the substrate layer is higher than the surface of the matrix layer furthest from the substrate layer between adjacent matrix strips; or... The surface of the matrix layer covering the matrix strip is at least partially higher than the surface of the matrix layer between adjacent matrix strips.

4. The aerosol generation matrix segment according to claim 1, wherein, An airflow channel is formed between adjacent matrix strips.

5. The aerosol generation matrix segment according to claim 1, wherein, The sheet-like matrix is ​​wound into a circle, the substrate layer is wound into a first cylindrical space, and each of the matrix strips is arranged circumferentially along the first cylindrical space, with airflow channels provided between at least some of the matrix strips.

6. The aerosol generation matrix segment according to claim 5, wherein, The smoke-generating agent loaded on the matrix strip is greater than the smoke-generating agent loaded on the matrix layer; or, The specific heat capacity of the matrix strip is less than that of the matrix layer.

7. The aerosol generation matrix segment according to claim 1, wherein, The matrix layer comprises hydrophobic materials, smoke generators, broadleaf fibers, water, fragrances, and nicotine and / or cooling agents.

8. The aerosol generation matrix segment according to claim 7, wherein, The hydrophobic material includes at least one of honeysuckle, mulberry leaf, chrysanthemum, dandelion, kudzu root, ophiopogon japonicus, almond, hyacinth bean, and lycium bark.

9. The aerosol generating matrix segment according to claim 1, wherein the matrix strip comprises a main raw material, porous material, smoke generator, flavoring, water, and nicotine and / or cooling agent, wherein, The main raw material consists of protein powder, starch, and fiber.

10. The aerosol generation matrix segment according to claim 9, wherein, The porous material includes at least one of the following: Juncus effusus, bamboo fungus, freeze-dried plants, and plants that have undergone foaming treatment.

11. An aerosol generation matrix segment, the aerosol generation matrix segment comprising a sheet matrix, the aerosol generation matrix segment being constructed as a wound structure formed by winding the sheet matrix, the sheet matrix being capable of being heated to generate aerosols; The sheet-like matrix includes a base layer and matrix strips, and the matrix strips are disposed on at least one side of the base layer along the thickness direction of the sheet-like matrix.

12. The aerosol generation matrix segment according to claim 11, wherein, The base layer includes a substrate layer, which includes plant fiber fabric, non-woven fabric and / or metal foil.

13. The aerosol generation matrix segment according to claim 11, wherein, The base layer includes a matrix layer, which is constructed by forming a matrix slurry through casting, spraying, or dipping. The matrix layer can be heated to generate an aerosol.

14. The aerosol generation matrix segment according to claim 13, wherein, 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 / cm³-0.9 g / cm³; and / or, The density of the base layer is 0.5 g / cm3-1 g / cm3.

15. The aerosol generation matrix segment according to claim 13, wherein, The base layer further includes a substrate layer, which is constructed by casting a substrate slurry onto the substrate layer. The substrate layer includes plant fiber fabrics, non-woven fabrics, and / or metal foils.

16. The aerosol generation matrix segment according to claim 15, wherein, The substrate layer is formed by casting on both sides along the thickness direction of the sheet-like matrix.

17. The aerosol generation matrix segment according to claim 11, wherein, The number of winding layers of the sheet-like matrix can be single or multiple.

18. The aerosol generation matrix segment according to claim 11, wherein, The sheet-like matrix is ​​wound into a circle, the base layer is wound into a second cylindrical space, and the matrix strip is wrapped inside the second cylindrical space.

19. The aerosol generation matrix segment according to claim 18, wherein, Each of the matrix strips extends along the central axis of the aerosol generating matrix segment, and each of the matrix strips is arranged at circumferential intervals along the second cylindrical space.

20. The aerosol generation matrix segment according to claim 18, wherein, An airflow channel is formed between at least two adjacent matrix strips.

21. The aerosol generation matrix segment according to claim 11, wherein, The matrix strip is constructed by extruding raw materials, and the matrix strip can be heated to generate an aerosol.

22. The aerosol generation matrix segment according to claim 21, wherein, The maximum diameter of the cross-section of the matrix strip is 1mm-2mm; and / or, The degree of expansion of the matrix strip is greater than or equal to 0.

75.

23. A method for preparing an aerosol generation matrix segment, comprising: Multiple matrix strips are spaced apart on the substrate layer along a first direction, the first direction intersecting the axial direction of the matrix strips; The matrix slurry is cast onto the side of the substrate layer where the matrix strip is located; Dry the matrix slurry to obtain a sheet-like matrix; The sheet-like matrix is ​​wound along the first direction to obtain the aerosol-generating matrix segment.

24. An aerosol generation matrix segment, wherein the aerosol generation matrix segment is prepared by the preparation method of the aerosol generation matrix segment according to claim 23.

25. An aerosol generating article, the aerosol generating article comprising the aerosol generating matrix segment according to any one of claims 1-22 and 24.

26. The aerosol-generating article according to claim 25, wherein, The aerosol generating product further includes a functional section and an outer coating layer. The functional section is disposed at one end of the aerosol generating matrix section. The functional section includes a cooling section and a filtration section. The cooling section is located between the filtration section and the aerosol generating matrix section. The outer coating layer wraps around the outer periphery of the functional section and the aerosol generating matrix section.

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