Aerosol substrate sheet, aerosol substrate segment and preparation method therefor, and aerosol product

Abstract

Disclosed in the embodiments of the present application are an aerosol substrate sheet, an aerosol substrate segment and a preparation method therefor, and an aerosol product. The aerosol substrate sheet comprises a sheet-like substrate, wherein the sheet-like substrate comprises a plurality of substrate strips arranged in parallel, at least one connecting area is formed between every two adjacent substrate strips, each connecting area connects the adjacent substrate strips, and the aerosol substrate sheet can be heated to generate an aerosol. In the aerosol substrate sheet in the embodiments of the present application, the adjacent substrate strips can be connected together by means of the connecting areas, which helps improve the integrity and overall strength of the sheet-like substrate, and in turn helps reduce the displacement caused by factors such as vibration during transportation, storage or use, thereby further improving the stability of draw resistance; in addition, the breakage and shedding of the substrate strips can also be mitigated, thereby being conducive to improving the vaping stability and yield rate.

Description

An aerosol matrix sheet, an aerosol matrix segment, a method for preparing the same, and aerosol products.

[0001] Cross-reference to related applications

[0002] This application is based on applications numbered 202511150941.8 (filed August 15, 2025), 202411844283.8 (filed December 13, 2024), 202511151076.9 (filed August 15, 2025), 202511151040.0 (filed August 15, 2025), and 202511150963.4 (filed August 15, 2025). This application makes and claims priority to Chinese patent applications filed on August 15, 2025, with application numbers 202511150981.2, 202511150979.5, 202511151046.8, and 202511151046.8, 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 matrix sheet, an aerosol matrix segment, a method for preparing the same, and an aerosol product. Background Technology

[0004] Aerosol products can generate aerosols through ignition or through heating without combustion. In heated but non-combustible aerosol products, an external heat source heats the product just enough to release aerosols without combustion. A smoke-generating agent is loaded, and the aerosols are released by heating the product during use. However, in these related technologies, aerosol products suffer from low smoke volume and inconsistent smoke distribution, requiring further improvement. Summary of the Invention

[0005] In view of this, the embodiments of this application aim to provide an aerosol matrix sheet, an aerosol matrix segment, a method for preparing the same, and an aerosol product, which are intended to improve the amount and consistency of smoke.

[0006] To achieve the above objectives, the first aspect of this application provides an aerosol matrix sheet, the aerosol matrix sheet comprising a sheet-like matrix, the sheet-like matrix comprising a plurality of matrix strips arranged in parallel, at least one connecting region being formed between adjacent matrix strips, the connecting region connecting adjacent matrix strips, and the aerosol matrix sheet being heatable to generate an aerosol.

[0007] In one embodiment, the thickness of at least a portion of the connecting region is less than the maximum dimension of the adjacent matrix strip along the thickness direction of the aerosol matrix sheet.

[0008] In one embodiment, the matrix strip is constructed by pressing and cutting the sheet-like matrix, and the connecting region is formed on the pressing and cutting trajectory; or, a groove is formed between adjacent matrix strips, and the bottom wall of the groove constitutes the connecting region.

[0009] In one embodiment, the maximum dimension of the matrix strip in the thickness direction of the aerosol matrix sheet is 0.7 mm-1.4 mm, or...

[0010] The dimension of the connecting region in the thickness direction of the aerosol matrix sheet is 0.01mm-0.5mm.

[0011] In one embodiment, the aerosol matrix sheet includes a base layer, and the sheet-like matrix is ​​disposed on at least one side of the base layer along the thickness direction of the aerosol matrix sheet.

[0012] In one embodiment, the dimension of the connecting region in the thickness direction of the aerosol matrix sheet is 0.01mm-0.5mm.

[0013] In one embodiment, the ratio of the connecting region to the maximum dimension of the matrix strip in the thickness direction of the aerosol matrix sheet is 1:2 to 1:10.

[0014] In one embodiment, the tensile strength of the substrate strip in the extension direction is 0.8N-3N; and / or, the tensile strength of the connecting region is 0.1N-1.0N.

[0015] A second aspect of this application provides an aerosol matrix segment, the aerosol matrix segment comprising the aerosol matrix sheet described above, the aerosol matrix segment being constructed as a wound structure formed by winding the aerosol matrix sheet.

[0016] In one embodiment, the winding direction of the aerosol matrix sheet is perpendicular to the extension direction of the matrix strip, or the length direction of the aerosol matrix segment is the same as the extension direction of the matrix strip.

[0017] In one embodiment, the length of the substrate segment is 8 mm to 20 mm, the equivalent diameter of the substrate segment is 5 mm to 8 mm, and the thermal conductivity of the sheet-like substrate is 2.0 W / (m·K) to 4.5 W / (m·K).

[0018] In one embodiment, the thermal conductivity of the connecting region is less than that of the matrix strip, and the thermal conductivity of the connecting region is greater than or equal to 0.5 W / (m·K).

[0019] In one embodiment, the moisture content of the sheet-like matrix is ​​4% to 10%; and / or, the density of the sheet-like matrix is ​​1.05 g / cm3 to 1.40 g / cm3.

[0020] In one embodiment, the porosity of the connecting region is greater than the porosity of the matrix strip.

[0021] In one embodiment, the protein source content in the sheet-like matrix is ​​5%-15% by weight, or the protein source content in the matrix strip is 5%-15%.

[0022] In one embodiment, the drying weight loss of the sheet-like matrix is ​​in the range of 8% to 20%.

[0023] In one embodiment, the weight of water, protein, and colloid contained in the matrix strip is in the range of 30-50% based on the dry weight of the matrix strip.

[0024] In one embodiment, the colloid mainly comprises at least one of ethers, alcohols, esters, and phenols with a flash point below 60°C.

[0025] In one embodiment, the maximum thickness of the connecting region is less than the maximum thickness of the sheet-like matrix, the maximum thickness of the sheet-like matrix is ​​in the range of 0.7 mm to 1.2 mm, and the minimum spacing between adjacent matrix strips is 0.01 mm to 0.5 mm.

[0026] In one embodiment, the matrix strip includes an aerosol forming agent, the weight of which is in the range of 10% to 40% based on the dry weight of the matrix strip.

[0027] In one embodiment, the mass of the sheet-like matrix in a single matrix segment is in the range of 200 mg to 500 mg.

[0028] In one embodiment, the porosity of the sheet matrix is ​​in the range of 25% to 40%, and / or the moisture content of the sheet matrix is ​​in the range of 6% to 8%.

[0029] In one embodiment, the thermal conductivity of the substrate strip is in the range of 2.5 W / (m·K) to 4.5 W / (m·K).

[0030] In one embodiment, the arrangement direction of the plurality of matrix strips is a first direction;

[0031] The matrix segment is columnar, and the maximum number of winding layers of the aerosol matrix sheet along the radial direction of the matrix segment is 1 to 5.

[0032] In one embodiment, the viscosity of the sheet-like matrix is ​​500N to 800N.

[0033] In one embodiment, the pH value of the sheet-like matrix is ​​5 to 8.

[0034] In one embodiment, the elongation at break of the sheet-like matrix is ​​10% to 30% along the extension direction of the matrix strip.

[0035] In one embodiment, the longitudinal tensile strength of the sheet-like matrix along the extension direction of the matrix strip is 250 N / m to 800 N / m; and / or, the transverse tensile strength of the sheet-like matrix along the arrangement direction of the plurality of matrix strips is 100 N / m to 250 N / m.

[0036] In one embodiment, the porosity of the sheet-like matrix is ​​25% to 50%, the minimum spacing between adjacent matrix strips is 0.02 mm to 0.2 mm, and the porosity of the connecting region is greater than that of the matrix strips.

[0037] In one embodiment, the material of the sheet-like matrix includes: 8 to 14 parts by weight of protein source, 20 to 45 parts by weight of fiber source, 10 to 20 parts by weight of inorganic filler, and 2 to 8 parts by weight of adhesive.

[0038] In one embodiment, the porosity of the matrix segment is 10% to 40%, and the elasticity of the matrix strip or the sheet matrix is ​​0.2 to 0.5.

[0039] In one embodiment, the elasticity of the matrix strip or the sheet matrix is ​​0.3 to 0.4.

[0040] In one embodiment, the absorption resistance of the matrix segment is greater than 0 and less than or equal to 10 mm water column.

[0041] In one embodiment, the hardness of the matrix strip is 300N to 500N.

[0042] In one embodiment, the salt content of the sheet-like matrix is ​​0.2% to 2%, and the pH value of the sheet-like matrix is ​​5 to 8.

[0043] In one embodiment, the porosity of the matrix strips or sheet-like matrix is ​​5% to 30%; and / or, a plurality of matrix strips of the sheet-like matrix are arranged along a first direction, the maximum size of a single matrix strip in the first direction is 0.7 mm to 1.2 mm, and the minimum interval between adjacent matrix strips in the first direction is 0.01 mm to 0.3 mm.

[0044] In one embodiment, the moisture content of the matrix strip is in the range of 4% to 10%, and the specific heat capacity of the matrix strip is in the range of 2.0 J / (g·K) to 4.0 J / (g·K).

[0045] In one embodiment, the maximum thickness of the sheet-like substrate is in the range of 0.7 mm to 1.2 mm, and the maximum thickness of the connecting region is in the range of 0.02 mm to 0.5 mm.

[0046] In one embodiment, the sheet-like matrix is ​​a one-piece structure, and at least one surface of the sheet-like matrix along the thickness direction is coated with powder.

[0047] A third aspect of this application provides a method for preparing an aerosol matrix segment, comprising:

[0048] Preparation of matrix slurry;

[0049] The matrix slurry is extruded to obtain a primary sheet matrix structure of the first thickness;

[0050] The primary sheet-like matrix structure is pressed into an aerosol matrix sheet of a second thickness, wherein the first thickness is greater than the second thickness;

[0051] The aerosol matrix sheet was cut into multiple unbroken matrix strips;

[0052] The aerosol matrix sheet after compression cutting is wound or gathered.

[0053] A fourth aspect of this application provides an aerosol article comprising the aerosol matrix segment described above.

[0054] The aerosol matrix sheet provided in this application comprises multiple parallel matrix strips. This allows for the formation of stable airways between adjacent matrix strips after the aerosol matrix sheet is wound to form an aerosol matrix segment, thereby improving the stability of the draw resistance. The draw resistance of the aerosol matrix segment can also be adjusted by regulating the size of the matrix strips. Furthermore, by forming at least one connecting region between adjacent matrix strips, the overall integrity and strength of the sheet matrix are improved. This reduces displacement and matrix strip breakage caused by vibration during transportation, storage, or use, further enhancing the stability of the draw resistance. It also mitigates the problem of matrix strip breakage and detachment, improving vapor production, vaping stability, and product yield. In addition, the matrix strips are a homogeneous system, which facilitates continuous and uniform aerosol generation, thereby improving the vaping experience. Attached Figure Description

[0055] Figure 1 is a schematic diagram of the structure of the sheet-like matrix in some embodiments of this application;

[0056] Figure 2 is a schematic diagram of the structure of the sheet-like matrix in some embodiments of this application;

[0057] Figure 3 is a schematic diagram of the structure of the sheet-like matrix in some embodiments of this application;

[0058] Figure 4 is a schematic diagram of the sheet-like matrix structure of some embodiments of this application;

[0059] Figure 5 is a schematic diagram of the sheet-like matrix structure of some embodiments of this application;

[0060] Figure 6 is a schematic diagram of the structure of the sheet-like matrix in some embodiments of this application;

[0061] Figure 7 is a schematic diagram of the structure of aerosol articles according to some embodiments of this application;

[0062] Figure 8 is a schematic diagram of the structure of aerosol articles according to some embodiments of this application;

[0063] Figure 9 is a flowchart of a method for preparing aerosol matrix segments according to some embodiments of this application;

[0064] Figure 10 is a schematic diagram of the structure of the sheet-like matrix in some embodiments of this application;

[0065] Figure 11 is a schematic diagram of the structure of the sheet-like matrix in some embodiments of this application;

[0066] Figure 12 is a schematic diagram of the structure of the aerosol matrix segment in some embodiments of this application;

[0067] Figure 13 is a flowchart of a method for preparing a matrix segment according to some embodiments of this application;

[0068] Figure 14 is a schematic diagram of the structure of an aerosol generation system according to some embodiments of this application;

[0069] Figure 15 is a schematic diagram of the structure of aerosol-generated articles according to some embodiments of this application;

[0070] Figure 16 is a schematic diagram of the structure of the matrix segment in some embodiments of this application.

[0071] Figure 17 is a flowchart of a method for preparing a matrix segment according to some embodiments of this application;

[0072] Figure 18 is a schematic diagram of the sheet-like matrix structure of some embodiments of this application;

[0073] Figure 19 is a schematic diagram of the matrix segment and the outer wrapping layer according to an embodiment of this application. Detailed Implementation

[0074] 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.

[0075] 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.

[0076] 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.

[0077] 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.

[0078] 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.

[0079] 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.

[0080] The present application will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0081] Please refer to Figures 1 to 7, and Figures 10 and 11. Embodiments of this application provide an aerosol matrix segment 11, which includes an aerosol matrix sheet according to any embodiment of this application. In some embodiments, the aerosol matrix segment 11 is constructed as a wound structure formed by winding the aerosol matrix sheet, for example, a rod-shaped structure. In other embodiments, the matrix segment 11 is constructed as a clustered structure formed by agglomerating the aerosol matrix sheet. The clustering can be achieved by folding, bending, compression, or other means.

[0082] It should be noted that the aerosol matrix segment 11 in this embodiment can be used for suction by ignition or by heating without combustion. In this embodiment, the example of suction using the aerosol matrix segment 11 by heating without combustion will be described.

[0083] It should be noted that the aerosol matrix sheet is first cut into multiple aerosol matrix segments 11, and then wound or gathered together to form one aerosol matrix segment 11. Alternatively, it can be wound or gathered together and then cut into multiple aerosol matrix segments 11.

[0084] In the embodiments of this application, "multiple" refers to two or more items.

[0085] Please refer to Figures 7, 8 and 12. This application also provides an aerosol article, which includes the aerosol matrix segment 11 of any embodiment of this application.

[0086] For example, the aerosol article also includes a functional segment and an outer wrapping layer 15.

[0087] Please refer to Figures 1 to 6, as well as Figures 10 and 11. An embodiment of this application provides an aerosol matrix sheet. The aerosol matrix sheet includes a sheet-like matrix 111, which includes a plurality of parallel matrix strips 112. At least one connecting region 113 is formed between adjacent matrix strips 112, and the connecting region 113 connects adjacent matrix strips 112. The aerosol matrix sheet can be heated to generate aerosol.

[0088] Here, adjacent matrix strips 112 can be connected by plant fibers, non-woven fabric or other components, which helps to improve the air permeability of the aerosol matrix sheet and improve the reliability and integrity between adjacent matrix strips 112.

[0089] For example, the connecting region 113 contains plant fibers.

[0090] The extension direction of the matrix strip 112 includes a first direction, that is, the aerosol matrix segment 11 extends along the first direction. For example, the first direction is the direction shown by L in FIG7.

[0091] It should be noted that the aerosol product extends in the same direction as the aerosol matrix segment 11. That is, the aerosol product also extends along the first direction.

[0092] The functional section is located at one end of the aerosol matrix section 11 along the first direction. The functional section includes a cooling section 13 and a filtration section 12, with the cooling section 13 located between the filtration section 12 and the aerosol matrix section 11. The outer wrapping layer 15 wraps around the outer periphery of the functional section and the aerosol matrix section 11.

[0093] For example, see Figure 15, where the functional segment includes the front plug segment 14.

[0094] The front plug section 14 is located at one end of the matrix section 11 and at the distal lip of the aerosol generating product 10. On the one hand, during use, the front plug section 14 can effectively reduce the probability of the matrix section 11 falling out of the outer wrapping layer 15; on the other hand, it can also effectively prevent the aerosol from condensing and flowing downwards and remaining in the receiving chamber 21 of the aerosol generating device 20, thereby causing the receiving chamber 21 to be contaminated and difficult to clean, and preventing the problem of cross-contamination of flavors when sucking in different flavored aerosol generating products 10.

[0095] For example, the material of the pre-plug section 14 includes, but is not limited to, paper, non-woven fabric, rubber, polyethylene terephthalate, cellulose acetate, mineral-containing products, cellulose paper filter rods, plant polysaccharides, etc.

[0096] In an embodiment where the functional section includes a filter section 12, a cooling section 13, and a front plug section 14, the cooling section 13 is disposed between the matrix section 11 and the filter section 12, that is, the cooling section 13 and the filter section 12 are disposed at the same end of the matrix section 11 along the first direction, that is, near the lip end, and the front plug section 14 is disposed at the other end of the matrix section 11 along the first direction.

[0097] The aerosol product is used in conjunction with an aerosol generating device 20 having a heating component. Specifically, the heating component heats and atomizes the aerosol matrix section 11 to generate aerosol, and the user draws in the filtered aerosol through the filter section 12.

[0098] 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 matrix segment 11 to bake and heat the aerosol matrix segment 11 from the inside out. Peripheral heating refers to the heating component being positioned around the aerosol product to bake and heat the aerosol matrix segment 11 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.

[0099] The heating element heats the aerosol matrix section 11, causing it to release aerosols. The user inhales the aerosol in batches, meaning the user inhales one breath of aerosol, stops, and then inhales the next breath, thus inhaling intermittently. The initial inhalation period refers to the period when the aerosol matrix section 11 is initially used; the first few inhalations correspond to this initial period, such as inhalations 1-5. The later inhalation period refers to the period when the aerosol matrix section 11 is close to complete aerosol release; the last few inhalations correspond to this later period, such as the last 1-5 inhalations. The initial and later inhalation periods refer to the early and late stages of the aerosol matrix section 11's lifespan, respectively. The middle inhalation period refers to the inhalation time between the initial and later inhalation periods. In some high-capacity devices with instant inhalation and stop, inhalation can be arbitrary and can occur at any time, not strictly encompassing the stages described above.

[0100] The cooling section 13 is located between the filtration section 12 and the aerosol matrix section 11 to cool the aerosol before the filtration section 12 filters it, thereby reducing the temperature of the aerosol and improving the "burning" sensation when the user inhales the aerosol.

[0101] It should be noted that aerosol products rely on the aerosol matrix section 11 to generate aerosols. The functional section generally does not generate aerosols, but some aerosol products may add flavoring substances such as popping beads to the functional section.

[0102] The material of the outer wrapping layer 15 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 (polyethylene), PBAT (polybutylene terephthalate).

[0103] The outer wrapping layer 15 can be in the form of a hollow tube. The aerosol matrix segment 11 and the functional segment can be arranged sequentially in the hollow tube-shaped outer wrapping layer 15. The outer wrapping layer 15 can also be a tipping paper. The aerosol matrix segment 11 and the functional segment are combined into an integral structure through the tipping paper.

[0104] Please refer to Figure 7. The first direction is the arrangement direction of the aerosol matrix section 11, the cooling section 13 and the filtration section 12. The aerosol product is inserted into the aerosol generating device 20 along the first direction. The aerosol matrix section 11 is closer to the heating component. The aerosol product is also taken out of the aerosol generating device 20 along the first direction. The length of the aerosol matrix section 11 along the first direction can be longer, shorter or the same as the length in other directions.

[0105] For example, when the outer contour of the aerosol matrix segment 11 is cylindrical, the first direction is the axial direction of the aerosol matrix segment 11. It should be noted that the axial length of the aerosol matrix segment 11 can be less than its diameter.

[0106] For example, when the aerosol matrix section 11 has a cuboid shape, the first direction is still the direction defined above, that is, the arrangement direction of the aerosol matrix section 11, the cooling section 13 and the filtration section 12, or the direction of taking and placing aerosol products on the aerosol generating device 20. The first direction of the aerosol matrix section 11 can be any of the length, width and height of the cuboid.

[0107] Please refer to Figures 1 to 6. The formation of at least one connection region 113 between adjacent matrix strips 112 means that there may be one connection region 113 between adjacent matrix strips 112, or multiple connection regions 113 may be formed, or a portion of the matrix strips 112 may have one connection region 113 between them, while another portion of the matrix strips 112 may have multiple connection regions 113 between them.

[0108] Here, the connecting regions 113 formed between the matrix strips 112 can be the same or different.

[0109] It should be noted that the specific location of the connecting area 113 is not restricted here.

[0110] In an embodiment where a connecting region 113 is formed between adjacent matrix strips 112, the connecting region 113 may be formed at the end, middle, or between the end and middle of the matrix strip 112; in an embodiment where multiple connecting regions 113 are formed between adjacent matrix strips 112, the multiple connecting regions 113 may be uniformly distributed or not uniformly distributed. For example, the sheet matrix 111 is cut into multiple matrix strips 112 by using a cutter or a die, but at least some of the adjacent matrix strips 112 are not cut, that is, there will still be connecting regions 113 connecting the adjacent matrix strips 112.

[0111] In some embodiments, a connecting region 113 is included between adjacent matrix strips 112, and the connecting region 113 completely covers the area between adjacent matrix strips 112. That is, adjacent matrix strips 112 are connected by a connecting region 113, and there is no disconnection between adjacent matrix strips 112. For example, the matrix strip 112 is formed by a portion of the surface of an aerosol matrix sheet protruding outward, with depressions formed between adjacent protrusions, and at least a portion of the depressions constitutes the connecting region 113. The sheet-like matrix 111 is pressed using a mold or roller, so that at least one side of the sheet-like matrix 111 forms multiple protruding strips, i.e., matrix strips 112, as shown in FIG11. A groove 115 is formed between adjacent matrix strips 112, and the bottom area of ​​the groove 115 constitutes the connecting region 113. Of course, it is understood that the groove 115 formed by pressing may also be discontinuous in some embodiments.

[0112] For example, adjacent matrix strips 112 are connected by a connecting region 113, the two ends of which extend to the two ends of the extending direction of the matrix strip 112. The dimension of the connecting region 113 in the thickness direction of the aerosol matrix sheet is smaller than the maximum dimension of the matrix strip 112 in the thickness direction of the aerosol matrix sheet. For example, the thickness of the bottom wall of the groove 115 is smaller than the maximum dimension of the matrix strip 112 in the same direction as the bottom wall thickness.

[0113] In other embodiments, adjacent matrix strips 112 include a plurality of spaced-apart connecting regions 113, which cover a portion of the area between adjacent matrix strips 112, while other areas between adjacent matrix strips 112 are disconnected. That is, adjacent matrix strips 112 are connected by a plurality of connecting regions 113, and other areas between adjacent matrix strips 112 are disconnected.

[0114] In related technologies, aerosol matrix segments 11 are obtained by bundling together multiple independent matrix strips 112. However, the integrity of multiple independent matrix strips 112 is poor, the structural strength is low, and it is not conducive to assembly and manufacturing. During packaging, handling, transportation, or suction, the matrix strips 112 may break and fall off.

[0115] In this embodiment of the application, adjacent matrix strips 112 can be connected together through the connecting area 113, which is beneficial to improve the integrity and overall strength of the sheet matrix 111, can improve the situation of matrix strips 112 breaking and falling off, and is beneficial to improve smoke volume, suction stability and yield.

[0116] In related technologies, the matrix units of the aerosol matrix segment 11 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 matrix segment 11 to become increasingly compact, resulting in greater suction resistance and a poor suction experience.

[0117] The aerosol matrix sheet of this application embodiment is formed by cutting the sheet-like matrix 111 into multiple matrix strips 112. This allows for the formation of stable air channels 114 between adjacent matrix strips 112 after the aerosol matrix sheet is wound to form aerosol matrix segments 11, thereby improving the stability of the draw resistance. Furthermore, the draw resistance of the aerosol matrix segments 11 can be adjusted by regulating the density, porosity, and size of the matrix strips 112. Additionally, the formation of at least one connecting region 113 between adjacent matrix strips 112 improves the integrity and overall strength of the sheet-like matrix 111, reducing displacement and breakage caused by vibration, bending, pressure, etc., during transportation, storage, or use. This further enhances the stability of the draw resistance and reduces the likelihood of matrix strip breakage and detachment, thus improving smoke volume, draw stability, and yield. Moreover, the matrix strips 112 are a homogeneous system, which facilitates the continuous and uniform generation of aerosols.

[0118] In some embodiments, as shown in Figures 1 to 6, the thickness of at least a portion of the connecting region 113 is less than the maximum dimension of the matrix strip 112 along the thickness direction of the aerosol matrix sheet.

[0119] Here, the thickness of all the connecting regions 113 may be less than the maximum dimension of the matrix strip 112 along the thickness direction of the aerosol matrix sheet, or the thickness of some of the connecting regions 113 may be less than the maximum dimension of the matrix strip 112 along the thickness direction of the aerosol matrix sheet, while the thickness of another part of the connecting regions 113 may be equal to the maximum dimension of the matrix strip 112 along the thickness direction of the aerosol matrix sheet.

[0120] In this embodiment, by making the thickness of at least part of the connecting region 113 less than the maximum dimension of the matrix strip 112 along the thickness direction of the aerosol matrix sheet, after the aerosol matrix sheet is wound to form the aerosol matrix segment 11, a stable air passage 114 can be formed at the connecting region 113, and the strength of the connecting region 113 can be strengthened, thereby improving the stability of the suction resistance and the integrity of the aerosol matrix sheet.

[0121] In some embodiments, the substrate strip 112 is constructed by pressing and cutting a sheet-like substrate 111, and a groove 115 is formed between adjacent substrate strips 112, with a portion of the bottom wall of the groove 115 forming a connecting region 113.

[0122] For example, as shown in FIG11, the sheet substrate 111 can be cut or pressed by a mold to form an uneven surface on the sheet substrate 111. Here, the protruding area is the substrate strip 112 and the recessed area is the groove 115.

[0123] In some embodiments, as shown in Figures 1 to 5, the cutting direction of the sheet-like matrix 111 includes a second direction.

[0124] Here, the continuous lines or dashed lines inside the sheet-like matrix 111 in Figures 1 to 6 represent the cutting lines of the sheet-like matrix 111, and the breaks in the dashed lines represent the connecting regions 113.

[0125] Here, the sheet-like matrix 111 can be cut only along the second direction, or it can be cut along other directions in addition to the second direction.

[0126] In some embodiments, as shown in Figures 1 and 2, the first direction is parallel to the second direction.

[0127] In other words, the extension direction of the matrix strip 112 is parallel to the cutting direction of the sheet matrix 111.

[0128] Here, the extension direction of the matrix strip 112 and the cutting direction of the sheet matrix 111 can be approximately parallel or completely parallel.

[0129] In some embodiments, as shown in Figures 5 and 6, the first direction intersects with the second direction.

[0130] Here, the extension direction of the matrix strip 112 intersects the cutting direction of the sheet matrix 111. That is, the extension direction of the matrix strip 112 is not parallel to the cutting direction of the sheet matrix 111. For example, the extension direction of the matrix strip 112 is perpendicular to the cutting direction of the sheet matrix 111.

[0131] Of course, in other embodiments, the sheet-like matrix 111 includes multiple cutting directions. For example, the sheet-like matrix 111 includes a cutting direction parallel to the extension direction of the matrix strip 112, and also includes a cutting direction intersecting the extension direction of the matrix strip 112.

[0132] In some embodiments, as shown in Figures 3 and 4, the extension trajectory of the groove 115 is a straight line or a curve.

[0133] In other words, the shearing direction of the sheet-like matrix 111 can be curved, such as S-shaped or spiral, or it can be straight.

[0134] In some embodiments, the matrix strip 112 is straight or at least partially curved.

[0135] For example, in an embodiment where the extension trajectory of the groove 115 is a straight line, the matrix strip 112 is a straight strip; in an embodiment where the extension trajectory of the groove 115 is an arc, the matrix strip 112 is an arc.

[0136] In some embodiments, the maximum dimension of the matrix strip 112 in the thickness direction of the aerosol matrix sheet is 0.7 mm to 1.4 mm.

[0137] The maximum dimension of the matrix strip 112 in the thickness direction of the aerosol matrix sheet can be any one of 0.7mm, 0.8mm, 0.9mm, 1mm, 1.1mm, 1.2mm, 1.3mm, 1.4mm or any combination thereof.

[0138] In this embodiment, the maximum dimension of the matrix strip 112 in the thickness direction of the aerosol matrix sheet is 0.7mm-1.4mm. When the matrix strip 112 is actually applied to aerosol products, it helps to increase the filling amount and ensure a suitable airflow channel, improve the suction resistance, and thus improve the suction experience of aerosol products. In addition, it can also make the matrix strip 112 have a certain structural strength.

[0139] In some embodiments, the dimension of the connecting region 113 in the thickness direction of the aerosol matrix sheet is 0.01 mm to 0.5 mm.

[0140] The dimension of the connecting region 113 in the thickness direction of the aerosol matrix sheet can be any one of 0.01mm, 0.05mm, 0.1mm, 0.15mm, 0.2mm, 0.3mm, 0.4mm, 0.5mm, or any combination thereof.

[0141] In this embodiment, by setting the size of the connecting region 113 in the thickness direction of the aerosol matrix sheet to 0.01mm-0.5mm, it is possible to form air channels 114 of sufficient size between adjacent matrix strips 112, while also improving the integrity and overall strength of the sheet matrix 111.

[0142] In some embodiments, the ratio of the maximum dimension of the connecting region 113 to the matrix strip 112 in the thickness direction of the aerosol matrix sheet is 1:2 to 1:10.

[0143] In other words, the ratio of the dimension of the connecting region 113 in the thickness direction of the aerosol matrix sheet to the maximum dimension of the matrix strip 112 in the thickness direction of the aerosol matrix sheet is 1:2 to 1:10.

[0144] The ratio of the dimensions of the connecting region 113 and the matrix strip 112 in the thickness direction of the aerosol matrix sheet can be any one of 1:2, 1:3, 1:4, 1:5, 1:6, 1:7, 1:8, 1:9, 1:10 or any value between the two.

[0145] In this embodiment, by setting the ratio of the dimension of the connecting region 113 in the thickness direction of the aerosol matrix sheet to the dimension of the matrix strip 112 in the thickness direction of the aerosol matrix sheet to 1:2-1:10, it is possible to form air channels 114 of sufficient size between adjacent matrix strips 112, while also improving the integrity and overall strength of the sheet matrix 111.

[0146] In some embodiments, the extension direction of the matrix strip 112 includes a first direction, the tensile strength of the aerosol matrix sheet in the first direction is 0.8N-5N, or the tensile strength of a single matrix strip 112 in the first direction is 0.2N-3N.

[0147] The tensile strength of the aerosol matrix sheet or matrix strip 112 in the first direction can be any one of 0.2N, 0.3N, 0.4N, 0.5N, 0.6N, 0.7N, 0.8N, 0.9N, 1N, 1.1N, 1.2N, 1.3N, 1.4N, 1.5N, 1.6N, 1.7N, 1.8N, 1.9N, 2N, 2.2N, 2.5N, 2.6N, 2.7N, 2.8N, 2.9N, or 3N, or a value between any two.

[0148] It helps to improve the integrity and overall strength of the sheet matrix 111, and helps to reduce displacement caused by factors such as vibration, pressure, and bending during transportation, storage or use. At the same time, it can also improve the situation of matrix strip 112 breaking and falling off along the extension direction, and help to improve smoke volume, suction stability and yield.

[0149] In some embodiments, the tensile strength of the aerosol matrix sheet in the direction perpendicular to the first direction is 0.1N-1.0N, or the tensile strength of the connecting region 113 in the direction perpendicular to the first direction is 0.1N-1.0N.

[0150] For example, the tensile strength of the aerosol matrix sheet in the direction perpendicular to the first direction is the transverse tensile strength of the aerosol matrix sheet, which is the tensile strength of the connecting region 113.

[0151] The tensile strength of the aerosol matrix sheet or connecting region 113 in the direction perpendicular to the first direction can be a point value of any one of 0.1N, 0.2N, 0.3N, 0.4N, 0.5N, 0.6N, 0.7N, 0.8N, 1.0N, or any value between two of them.

[0152] This is beneficial to further improve the integrity and overall strength of the sheet-like matrix 111, thereby reducing the breakage between adjacent matrix strips 112. At the same time, it can further improve the situation where the matrix strips 112 break and fall off along the extension direction.

[0153] In some embodiments, the porosity of the aerosol matrix sheet or matrix strip 112 is 1%-5%.

[0154] The porosity of the aerosol matrix sheet or matrix strip 112 can be any one of 1%, 2%, 3%, 4%, 5%, or any value between two of them.

[0155] Therefore, after the aerosol matrix sheet is wound to form the aerosol matrix segment 11, a stable air channel 114 can be formed inside the matrix strip 112, thereby improving the stability of the suction resistance and improving the atomization efficiency and atomization amount.

[0156] In some embodiments, the connecting region 113 may be a structure composed of one or more of plant fibers, nonwoven fabric, or other components. The connecting region 113 has moderate flexibility and breathability, which is beneficial for improving the breathability of the sheet matrix 111 while connecting adjacent matrix strips 112, thereby improving the connection reliability and integrity between adjacent matrix strips 112.

[0157] In some embodiments, the porosity of the connecting region 113 is greater than that of the matrix strip 112, and the connecting region 113 comprises plant fibers, nonwoven fabric, or metal foil.

[0158] In this way, the matrix strip 112 can generate enough aerosol, and a stable air channel 114 is formed in the connecting region 113, thereby improving the stability of the suction resistance and also improving the integrity of the aerosol matrix sheet.

[0159] In some embodiments, the porosity of the aerosol matrix segment 11 is 3%-15%.

[0160] The porosity of the aerosol matrix segment 11 can be any one of 3%, 4%, 5%, 6%, 7%, 8%, 9%, 10%, 11%, 12%, 13%, 14%, or 15%, or any value between two of them.

[0161] The number of matrix strips 112 inside the aerosol matrix section 11 is 15-50. By setting the porosity of the aerosol matrix section 11 to 3%-15%, a stable air channel 114 can be formed inside the aerosol matrix section 11, which is beneficial to improving the stability of the suction resistance and the heat transfer efficiency of the aerosol matrix section 11, thereby improving the atomization efficiency and atomization amount.

[0162] In some embodiments, the winding direction of the aerosol matrix sheet is perpendicular to the extension direction of the matrix strip 112.

[0163] In other words, the axial direction of the aerosol matrix segment 11 is basically consistent with the extension direction of the matrix strip 112.

[0164] Thus, an airway 114 is formed between adjacent matrix strips 112, and the extension direction of the matrix strips 112 is basically consistent with the axial direction of the aerosol matrix section 11. This allows the airway 114 to also extend along the axial direction of the aerosol matrix section 11, which is beneficial for air intake and aerosol outflow, further improving atomization efficiency and atomization volume.

[0165] In some embodiments, the length direction of the aerosol matrix segment 11 is the same as the extension direction of the matrix strip 112.

[0166] In some embodiments, there are gaps between at least some of the adjacent matrix strips 112 of the aerosol matrix segment 11.

[0167] In other words, after the aerosol matrix sheet is wound to form the aerosol matrix segment 11, there are gaps between at least some of the adjacent matrix strips 112, that is, the area with gaps has no connected area 113.

[0168] Here, there may be gaps between some adjacent matrix strips 112, or there may be gaps between any two matrix strips 112.

[0169] In this embodiment, by having a gap between at least some of the adjacent matrix strips 112 in the aerosol matrix segment 11, the gap can form an air passage 114, which is beneficial for air intake and aerosol outflow, and further improves atomization efficiency and atomization amount.

[0170] In some embodiments, the minimum spacing between adjacent substrate strips 112 is 0.01 mm to 0.3 mm. For example, it can be 0.01 mm, 0.05 mm, 0.1 mm, 0.15 mm, 0.18 mm, 0.2 mm, 0.25 mm, 0.26 mm, 0.3 mm, 0.33 mm, 0.36 mm, 0.4 mm, 0.45 mm, 0.47 mm, 0.5 mm, etc. The spacing between adjacent substrate strips 112 is the width dimension of the connecting region 113 in the arrangement direction of the substrate strips 112. The spacing between adjacent substrate strips 112 can form an airway 114, and the spacing between adjacent substrate strips 112 is the width dimension of the airway 114 in the arrangement direction of the substrate strips 112.

[0171] By setting the minimum spacing between adjacent matrix strips 112 to 0.01 mm to 0.3 mm, after the sheet matrix 111 is rolled up to form a matrix segment 11, a suitable and stable airway 114 can be formed at the connection area 113, thereby improving the stability of the suction resistance.

[0172] In some embodiments, the cross-sectional shape of the matrix strip 112 in a cross-section perpendicular to the length direction of the matrix strip 112 includes at least one of a circle, an ellipse, a racetrack shape, or a polygon.

[0173] Here, "track shape" refers to a shape similar to an athletic track, which is formed by alternating semicircles or arcs of the same radius and two parallel straight edges.

[0174] Here, the cross-sectional shape of the matrix strips 112 can be the same or different.

[0175] In other embodiments, the cross-sectional shape of the matrix strip 112 may also be irregular.

[0176] In some embodiments, the equivalent diameter of the cross section of the matrix strip 112 is 0.8 mm to 1.4 mm in a cross section perpendicular to the extension direction of the matrix strip 112.

[0177] In other words, when the cross-sectional shape of the matrix strip 112 is circular, the equivalent diameter of the matrix strip 112 is 0.8mm-1.4mm. When the matrix strip 112 is actually applied to aerosol products, it also helps to increase the filling amount and can also make the matrix strip 112 have a certain structural strength.

[0178] In some embodiments, referring to FIG8, the aerosol matrix sheet includes a base layer 120, and a sheet-like matrix 111 is disposed on at least one side of the base layer 120 along the thickness direction of the aerosol matrix sheet. In some embodiments, the sheet-like matrix 111 includes the base layer 120, and a matrix layer is coated on the base layer 120. The two together constitute the sheet-like matrix 111, and the matrix layer is an aerosol generating matrix that can generate aerosols coated on the base layer 120.

[0179] Here, the substrate 120 may have a sheet matrix 111 on one side along the thickness direction of the aerosol matrix sheet, or the substrate 120 may have a sheet matrix 111 on both sides along the thickness direction of the aerosol matrix sheet.

[0180] In this embodiment, by setting the base layer 120, it is beneficial to improve the structural strength of the aerosol matrix sheet, improve the integrity and overall strength of the aerosol matrix sheet, thereby reducing the displacement caused by factors such as vibration during transportation, storage or use, and thus further improving the stability of suction resistance. At the same time, it can also improve the situation of matrix strip 112 breaking and falling off, which is beneficial to improving suction stability and yield.

[0181] In some embodiments, please refer to FIG8, the base layer 120 includes plant fiber fabric, non-woven fabric and / or metal foil.

[0182] In other words, the substrate layer can be plant fiber fabric, non-woven fabric, metal foil, or both non-woven fabric and metal foil.

[0183] 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.

[0184] For example, the surface of the metal foil is pre-coated with a smoke-generating agent, which helps to further increase the amount of atomization.

[0185] Plant fiber fabrics and non-woven fabrics have high air permeability, which increases air permeability and bonding strength; in addition, plant fiber fabrics and non-woven fabrics also have a cushioning and elastic effect, which is beneficial to the cooperation between the heating component and the aerosol matrix section 11.

[0186] In other embodiments, the substrate 120 includes a matrix layer constructed from a matrix slurry by casting, spraying, or dipping, and the matrix layer can be heated to generate an aerosol.

[0187] Both the matrix layer and the sheet matrix 111 can be heated to generate aerosols, which is conducive to the rapid explosion of smoke and a large amount of smoke. Furthermore, the aerosols generated by the matrix layer and the sheet matrix 111 can mix and interact with each other, which can increase the comfort of the aerosols and improve the quality of inhalation.

[0188] 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.

[0189] This application mainly uses casting and extrusion processes. The matrix layer is formed by casting matrix slurry, which has high production efficiency. The sheet matrix 111 adheres to the matrix layer. By adjusting the size and distribution of the matrix strips 112, sufficient air channels 114 can be formed. After the sheet matrix 111 is 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.

[0190] In some embodiments, the connection region 113 is formed by a portion of the base layer 120.

[0191] In other words, the connecting region 113 includes at least a portion of the base layer 120, which includes plant fiber fabric, non-woven fabric and / or metal foil, and has a large structural strength. In this way, the aerosol matrix segment 11 can form the airway 114 in the connecting region 113, while also ensuring good connection strength between adjacent matrix strips 112.

[0192] In some embodiments, the thickness of the connection region 113 is greater than or equal to the thickness of the base layer 120.

[0193] For example, the connection region 113 may include only the base layer 120, or it may include a portion of the sheet matrix 111 in addition to the base layer 120.

[0194] In other words, in an embodiment where the connection region 113 only has the base layer 120, the thickness of the connection region 113 is equal to the thickness of the base layer 120. In an embodiment where the connection region 113 includes a portion of the sheet matrix 111 in addition to the base layer 120, the thickness of the connection region 113 is greater than the thickness of the base layer 120.

[0195] In some embodiments, at least one surface of the aerosol matrix sheet is uneven.

[0196] Here, it means that the aerosol matrix sheet can have one surface that is uneven or both surfaces that are uneven.

[0197] In other words, the surface of the aerosol matrix sheet is not a flat plane, but a rough surface, which is beneficial to increasing the size of the air passage 114 of the aerosol matrix segment 11.

[0198] For example, the surface of the aerosol matrix sheet is corrugated.

[0199] In some embodiments, the aerosol matrix sheet includes a plurality of sheet-like matrices 111, which are stacked along the thickness direction of the aerosol matrix sheet.

[0200] In embodiments where the surface of the sheet matrix 111 is uneven, the sheet matrix 111 has varying thicknesses, resulting in greater strength in thicker regions than in thinner regions. By stacking multiple sheet matrices 111 along the thickness direction of the aerosol matrix sheet, at least some thinner regions can be stacked with thicker regions, thus improving the overall strength of the aerosol matrix sheet.

[0201] In other words, by combining multiple sheet-like substrates 111 into a whole, the overall strength of the aerosol matrix sheet is improved, and the breakage of the sheet-like substrates 111 in areas of thinner thickness is mitigated. This facilitates subsequent winding of the aerosol matrix sheet and also helps reduce flaking of the aerosol matrix segments 11 after baking.

[0202] In some embodiments, the length H of the substrate segment 11 is 8 mm to 20 mm, the equivalent diameter D1 of the substrate segment 11 is 5 mm to 8 mm, and the thermal conductivity α of the sheet-like substrate 111 is 2.0 W / (m·K) to 4.5 W / (m·K). That is, 8 mm ≤ H ≤ 20 mm, 5 mm ≤ D1 ≤ 8 mm, and 2.0 W / (m·K) ≤ α ≤ 4.5 W / (m·K). Where W represents watts and m·K represents Kelvin per meter.

[0203] The equivalent diameter refers to the diameter of a circle that has the same cross-section as the matrix segment 11.

[0204] The length H of the matrix segment 11 can be 8mm, 9mm, 10mm, 10.3mm, 11mm, 11.5mm, 12mm, 12.7mm, 13mm, 15mm, 15.9mm, 17mm, 18mm, 19mm, 20mm, etc.

[0205] The equivalent diameter D1 of the matrix segment 11 can be 5mm, 5.2mm, 5.5mm, 5.8mm, 6mm, 6.3mm, 6.5mm, 6.8mm, 7mm, 7.4mm, 7.7mm, 8mm, etc.

[0206] The thermal conductivity α of the sheet matrix 111 can be 2.0 W / (m·K), 2.3 W / (m·K), 2.5 W / (m·K), 2.6 W / (m·K), 2.8 W / (m·K), 3 W / (m·K), 3.2 W / (m·K), 3.5 W / (m·K), 3.6 W / (m·K), 3.8 W / (m·K), 4 W / (m·K), 4.2 W / (m·K), 4.3 W / (m·K), 4.5 W / (m·K), etc.

[0207] The thermal conductivity of the sheet matrix 111 can be determined according to the method specified in GB / T 22588-2008 "Measuring thermal diffusivity or thermal conductivity by flash method".

[0208] The thermal conductivity affects the heat transfer rate from the outside to the inside of the matrix section 11. Especially when the matrix section 11 is formed by winding, there are gaps between the layers. The influence of the heat transfer rate will affect the suction performance. Taking peripheral heating as an example, if it is lower than 2.0 W / (m·K), the heat of the outermost ring cannot be conducted in time to the inside, which may cause the outer layer to be overheated locally, carbonize quickly, and produce an unpleasant smell. Meanwhile, the inner ring is not heated enough, the smoke-generating agent cannot be activated, and the overall smoke volume is small. If it is higher than 4.5 W / (m·K), the heat from peripheral heating will be quickly conducted to the entire matrix section 11, but the outermost medium cannot be heated quickly and the smoke-generating agent cannot be activated. This results in a small smoke volume in the first few puffs and poor consistency of smoke volume. The smoke volume in the last few puffs will also be relatively small.

[0209] In this embodiment, the length H of the matrix segment 11 is 8 mm to 20 mm, the equivalent diameter D1 of the matrix segment 11 is 5 mm to 8 mm, the thermal conductivity α of the sheet matrix 111 is 2.0 W / (m·K) to 4.5 W / (m·K), and the total volume of the matrix segment 11 is moderate, which can load more substances for generating aerosols. Whether it is peripheral heating or central heating, the heat conduction speed is moderate, and its equivalent diameter is moderate. It can activate more smoke-generating agent at the beginning of heating, so that the first few puffs have a suitable amount of smoke, and the last few puffs also have a suitable amount of smoke, which is conducive to improving the consistency of smoke volume.

[0210] In some embodiments, the maximum circumscribed circle diameter D2 of the substrate strip 112 is 0.7mm to 1.2mm, that is, 0.7mm ≤ D2 ≤ 1.2mm. For example, D2 can be 0.7mm, 0.8mm, 0.9mm, 1.0mm, 1.1mm, 1.2mm, etc.

[0211] The maximum circumscribed circle diameter can be understood as: a virtual cylinder that can just fit the matrix strip 112 inside the cylinder, neither too big nor too small. The inner diameter of the cylinder can be understood as the maximum circumscribed circle of the matrix strip 112.

[0212] In this embodiment, the maximum outer circle range of the matrix strip 112 is appropriate. If it is less than 0.7 mm, the matrix strip 112 is too thin and is prone to breakage during winding or gathering or processing, and the processing is difficult. If it is greater than 1.2 mm, even if it is wound once, the outer diameter of the entire matrix segment 11 will be too large, which is not conducive to user suction.

[0213] Preferably, the thermal conductivity of the sheet matrix 111 is in the range of 3 W / (m·K) to 4.0 W / (m·K).

[0214] In some embodiments, the thermal conductivity of the connecting region 113 is less than that of the substrate strip 112, and the thermal conductivity of the connecting region 113 is greater than or equal to 0.5 W / (m·K).

[0215] In this embodiment, the connecting region 113 has a certain thermal conductivity and can conduct heat, but it is less than the thermal conductivity of the sheet matrix 111. That is, the thermal resistance of the connecting region 113 is greater than that of the sheet matrix 111. As a result, heat is preferentially conducted in the same matrix strip 112. Therefore, the overall heat conduction speed of the matrix segment 11 along the first direction is greater than the heat conduction speed between two adjacent matrix strips 112, which is beneficial to improving the aerosol extraction effect of each region of the matrix segment 11 in the first direction.

[0216] In some embodiments, the porosity P1 of the sheet matrix 111 is 20% ≤ P1 < 25%, or 25% ≤ P1 ≤ 50%; or, the porosity P2 of the matrix strip 112 is 20% to 45%, i.e., 20% ≤ P1 ≤ 45%.

[0217] Porosity P1 can be 20%, 25%, 26%, 27%, 28%, 30%, 32%, 33%, 35%, 36%, 37%, 38%, 40%, 45%, 50%, etc.

[0218] Porosity P2 can be 20%, 25%, 26%, 27%, 28%, 30%, 32%, 33%, 35%, 36%, 37%, 38%, 40%, 45%, etc.

[0219] It should be noted that the porosity of the sheet-like matrix 111 and the matrix strip 112 can be the same or different. Whether there is a difference between the porosity of the sheet-like matrix 111 and the matrix strip 112 mainly depends on the porosity of the connecting region 113. The porosity of the sheet-like matrix 111 is affected by the porosity of the matrix strip 112 and the porosity of the connecting region 113.

[0220] If the porosity of the connecting region 113 is greater than the porosity of the matrix strip 112, then the porosity of the sheet matrix 111 will be greater than the porosity of the matrix strip 112. If the porosity of the connecting region 113 is equal to the porosity of the matrix strip 112, then the porosity of the sheet matrix 111 is the same as the porosity of the matrix strip 112.

[0221] It should be noted that if the porosity of the matrix strip 112 is less than 25%, the structure of the matrix strip 112 is dense, which is not conducive to the evaporation of moisture during drying. If the porosity of the matrix strip 112 is higher than 45%, the structure of the pores of the matrix strip 112 is loose, and the evaporation rate of moisture, aroma and other substances is too fast, and the aroma is also lost quickly.

[0222] Therefore, the porosity is 1 - 60% = 40%.

[0223] Among them, the porosity can be determined according to the method specified in YC / T 473-2013 "Determination of Apparent Density, True Density and Internal Pore Volume of Tobacco".

[0224] In some embodiments, the porosity of the connecting region 113 is greater than the porosity of the matrix strip 112.

[0225] In other words, the air permeability of the connecting region 113 is better than that of the matrix strip 112, which is more conducive to the formation of air channels 114 between two adjacent matrix strips 112 after the matrix segment 11 is formed. The connecting region 113 also facilitates the passage of aerosols from two adjacent air channels 114 through the connecting region 113.

[0226] In some embodiments, the maximum thickness of the sheet matrix 111 is in the range of 0.8 mm to 1.2 mm, the maximum thickness of the connecting region 113 is 0.01 mm to 0.5 mm, the plurality of matrix strips 112 of the sheet matrix 111 are arranged along a first direction, and the size of the sheet matrix 111 in the first direction is 18 mm to 36 mm.

[0227] In other words, the maximum thickness of the connecting region 113 is less than the maximum thickness of the sheet matrix 111.

[0228] The maximum thickness of the sheet matrix 111 can be 0.8 mm, 0.9 mm, 1 mm, 1.1 mm, 1.2 mm, etc. If the sheet matrix 111 is too thin (i.e., the sheet matrix 111 is relatively thin), it may have poor strength, be easy to break, lose aroma quickly, and have problems with consistency. If the sheet matrix 111 is too thick (i.e., the sheet matrix 111 is relatively thick), it will require a longer time or higher temperature during the drying process, which may result in aroma loss.

[0229] The maximum thickness of the connecting area 113 can be 0.01mm, 0.1mm, 0.15mm, 0.2mm, 0.23mm, 0.28mm, 0.3mm, 0.35mm, 0.4mm, 0.5mm, etc. If the thickness of the connecting area 113 is too thin, it is difficult to process and is prone to breakage, resulting in more defective products. If the thickness of the connecting area 113 is too thick, the bending resistance of the connecting area 113 is relatively large during the winding or gathering of the sheet matrix 111, making it difficult to form a bundle. Moreover, after the winding or gathering is completed, there will still be a large residual stress, which can easily cause the matrix segment 11 to expand, which is not conducive to the standardized control of the appearance and size of the matrix segment 11.

[0230] The sheet-like substrate 111 has a size of 18mm to 36mm in the first direction, for example, 18mm, 20mm, 22mm, 25mm, 28mm, 30mm, 33mm, 35mm, 36mm, etc. This makes it easy to roll or gather the sheet-like substrate 111 into a columnar structure of a suitable size.

[0231] By setting the size of the sheet-like substrate 111 in the first direction to 18mm to 36mm, both the equivalent diameter of the substrate segment 11 and the ease of processing can be taken into account.

[0232] By setting the maximum thickness of the sheet matrix 111 to the range of 0.8 mm to 1.2 mm, the maximum thickness of the connecting region 113 to the range of 0.01 mm to 0.5 mm, and the dimension of the sheet matrix 111 in the first direction to be 18 mm to 36 mm, the main structure of the sheet matrix 111 (the structure outside the connecting region 113) is given a certain structural strength, improving the problem of breakage. It also facilitates the drying process of the sheet matrix 111, ensuring that the sheet matrix 111 has an appropriate drying weight loss rate and moisture content. Furthermore, it makes it easier to form bundles when the sheet matrix 111 is rolled or aggregated. After forming the matrix segment 11, the appearance and dimensions of the matrix segment 11 are stable, which is beneficial for dimensional standardization. It also helps to increase the filling volume of the matrix segment 11 and ensure a suitable air passage 114, improving suction resistance and thus enhancing the suction experience of the aerosol-generated product 10.

[0233] Preferably, the maximum thickness of the sheet-like matrix 111 is in the range of 0.9 mm to 1.1 mm.

[0234] In some embodiments, the density of the sheet-like matrix 111 or the matrix strip 112 is 1.05 g / cm³. 3 Up to 1.40 g / cm 3 The density of the sheet-like matrix 111 or matrix strip 112 can be 1.05 g / cm³. 3 1.06 g / cm 3 1.08g / cm 31.10 g / cm 3 1.12 g / cm 3 1.15g / cm 3 1.16 g / cm 3 1.18 g / cm 3 1.20g / cm 3 1.23g / cm 3 1.25g / cm 3 1.26 g / cm 3 1.28g / cm 3 1.30g / cm 3 1.33g / cm 3 1.37g / cm 3 1.40 g / cm 3 The point value of any one of them or the point value between any two.

[0235] Because the aerosol forming agent is highly hydrophilic, on the one hand, the drying process of the matrix strip 112 will affect the removal of moisture, requiring a greater drying intensity, and excessive drying intensity may lead to greater loss of the corresponding aroma components; on the other hand, during the storage of the aerosol-generated product 10, the aerosol forming agent will absorb moisture, which may lead to an increase in the moisture content of the matrix strip 112.

[0236] The density of the sheet matrix 111 can be determined according to the method specified in YC / T 473-2013 "Determination of apparent density, true density and internal pore volume of tobacco".

[0237] It can be understood that the density of the sheet matrix 111 or matrix strip 112 is affected by the extrusion and calendering effects. During processing, the sheet matrix 111 is subjected to extrusion forces, which reduces the distance between molecules and increases the interaction forces. Some components may undergo phase transformation under high temperature and high pressure, which may cause changes in the specific heat capacity of the sheet matrix 111 or matrix strip 112. Generally, this will cause a decrease in the specific heat capacity of the sheet matrix 111 or matrix strip 112. If the density is greater than 1.40 g / cm³, the specific heat capacity will decrease. 3 This indicates that the sheet-like matrix 111 or matrix strip 112 is processed too densely, resulting in a low specific heat capacity. This hinders moisture evaporation during processing, requiring a longer drying time and potentially leading to the loss of low-flash-point substances in the aroma. Although the overall weight loss may be slower, the high moisture content will affect the amount of smoke and the smoke temperature. If the density is less than 1.05 g / cm³... 3 This indicates that the sheet matrix 111 or matrix strip 112 was processed too loosely, with a large specific heat capacity. Moisture and aroma components are easily volatilized, and the matrix will lose weight rapidly in a short time, which is not conducive to the drying process.

[0238] Furthermore, if the density of the sheet-like matrix 111 or the matrix strip 112 is less than 1.05 g / cm³ 3 The heat storage capacity of the matrix segment 11, which is formed by the coiling or agglomeration of the sheet-like matrix 111, is weak. The energy input to the heating element is quickly dissipated, which may lead to a shortened effective heating time. During a single extraction cycle, the temperature of the matrix segment 11 drops from the peak (250℃) to below 180℃, the amount of aerosol generation decreases, the axial temperature gradient is significant, and the temperature difference between the distal and proximal ends of the matrix segment 11 is too large, which causes local overheating of the matrix segment 11 (increased release of burnt odor substances) and insufficient extraction in the low-temperature zone (reduced release of effective ingredients).

[0239] Therefore, by setting the density of the sheet-like matrix 111 or the matrix strip 112 to 1.05 g / cm³, 3 Up to 1.40 g / cm 3 The appropriate moisture content range allows the sheet matrix 111 or matrix strip 112 to maintain a suitable level, reducing aroma loss during processing. This balances aerosol generation and temperature while improving draw consistency and flavor. Furthermore, by synergistically designing the drying weight loss rate and density of the matrix segment 111 or matrix strip 112, aroma loss during processing can be further reduced. This also minimizes the temperature difference between the distal and proximal ends of the matrix segment 11, mitigating local overheating and insufficient extraction, thus enhancing aerosol extraction efficiency and draw flavor.

[0240] Preferably, the density of the sheet-like matrix 111 or the matrix strip 112 is 1.10 g / cm³. 3 Up to 1.25 g / cm 3 The range.

[0241] In some embodiments, the moisture content of the sheet matrix 111 or matrix strip 112 is in the range of 4% to 10%.

[0242] The moisture content of the sheet-like matrix 111 or the matrix strip 112 can be any one of 4%, 4.5%, 5%, 5.5%, 5.7%, 6%, 6.3%, 6.5%, 7%, 7.5%, 7.8%, 8%, 8.5%, 9%, 9.5%, 10%, or any value between two of them.

[0243] The moisture content of the sheet matrix 111 or matrix strip 112 was determined according to the method specified in the fourth method of the Karl Fischer method in GB5009.3-2016 "National Food Safety Standard - Determination of Moisture in Food".

[0244] Moisture has a high specific heat capacity, absorbing a large amount of heat when heated and releasing a large amount of latent heat when liquefied. Therefore, if the moisture content of the sheet matrix 111 or matrix strip 112 is too high, it will affect the heat absorption and temperature rise of other components of the sheet matrix 111 (matrix segment 11), resulting in a small amount of vapor in the first few puffs. The aerosols produced will liquefy rapidly after release, releasing more heat, leading to excessively high aerosol temperature and reduced aerosol volume, which may cause burns to the smoker. If the moisture content of the sheet matrix 111 or matrix strip 112 is too low, the drying intensity of the sheet matrix 111 during processing will be greater, resulting in a lower drying weight loss rate and greater aroma loss.

[0245] By setting the moisture content of the sheet matrix 111 or matrix strip 112 to a range of 4% to 10%, and setting the drying weight loss rate of the sheet matrix 111 or matrix strip 112 to a range of 8% to 20%, the drying weight loss rate and moisture content of the sheet matrix 111 are designed in a coordinated manner. This can take into account the processing and manufacturing process, aroma preservation, excessive aerosol temperature, and aerosol volume. In other words, while facilitating processing and manufacturing, it is beneficial to improve the smoking consistency and smoking taste of the matrix segment 11.

[0246] Preferably, the moisture content of the sheet matrix 111 or matrix strip 112 is in the range of 6% to 8%.

[0247] In some embodiments, the protein source content in the sheet matrix 111 is 5%-15% by weight, or the protein source content in the matrix strip 112 is 5%-15%, for example, it can be 5%, 7%, 8%, 10%, 11%, 12%, 13%, 15%, etc.

[0248] In other words, the raw material of the sheet-like matrix 111 or matrix strip 112 includes a protein source. For example, the protein source includes one or more of rice protein, wheat protein, soy protein, and pea protein.

[0249] When the protein source content exceeds 15%, the excessive addition of protein source results in a burnt protein-like odor during suction. When the protein source content is below 5%, the material lacks extensibility and is difficult to form continuous and regular sheets. Therefore, in this embodiment, the appropriate amount of protein source added is beneficial for balancing the extensibility and texture of the sheet matrix 111 or matrix segment 11.

[0250] Within this range of protein source content, the sheet matrix 111 can form a dense structure through cross-linking, which is beneficial for a lower specific heat capacity of the sheet matrix 111, allowing the medium to heat up rapidly. In addition, it also helps to improve the problems of unpleasant odor, poor strength, and easy breakage caused by excessive protein source content.

[0251] Please refer to Figures 6, 11, 16 and 18. At least one surface of the sheet matrix 111 along the thickness direction is coated with powder 116. The sheet matrix 111 is a one-piece structure.

[0252] The sheet-like matrix 111 may have powder 116 coated on one side of its surface along the thickness direction, or it may have powder 116 coated on both sides of its surface along the thickness direction.

[0253] In this way, after the aerosol matrix sheet is wound or gathered, the adhesion between layers and between the aerosol matrix sheet and the outer wrapping layer 15 can be improved, and the matrix segment 11 can also have uniform pores.

[0254] In related technologies, the matrix units of the aerosol matrix segment 11 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 matrix segment 11 to become increasingly compact, resulting in greater suction resistance and a poor suction experience.

[0255] The matrix segment 11 provided in this application embodiment coats at least one side of the sheet matrix 111 with powder 116 along the thickness direction, which can reduce the stickiness of the sheet matrix 111 surface. This can improve the adhesion of the sheet matrix 111 to the processing equipment during processing, making it easier to process and shape. It can also improve the adhesion between layers after the aerosol matrix sheet is wound or gathered, and between the aerosol matrix sheet and the outer wrapping layer 15. This can improve the situation where the air passages 114 become fewer and smaller, so that the matrix segment 11 has uniform pores, reducing the user's suction force, making suction easier, more natural and smooth, reducing suction fatigue, making it easier for the user to maintain continuous suction, and reducing the situation of aerosol output jamming or unstable output, so as to achieve uniform and stable release of aerosol, with a large amount of aerosol, improving the suction taste and user comfort.

[0256] It should be noted that there are several specific types of powder 116.

[0257] In some embodiments, powder 116 is inorganic salt powder 116.

[0258] In this way, inorganic salt powder 116 can improve the adhesion between layers after the aerosol matrix sheet is wound or gathered, and between the aerosol matrix sheet and the outer wrapping layer 15. It can also make the matrix segment 11 have uniform pores. In addition, it will not affect the suction taste during the suction process.

[0259] For example, powder 116 comprises one or any mixture of light calcium carbonate, heavy calcium carbonate, and alumina.

[0260] In some embodiments, powder 116 is metal powder 116, tobacco material powder 116, or non-tobacco plant powder 116.

[0261] For example, the metal powder 116 is alumina powder 116.

[0262] In some embodiments, the thermal conductivity of the aerosol matrix sheet or matrix strip 112 is in the range of 2.0 W / (m·K) to 4.5 W / (m·K), and the thermal conductivity of the powder 116 is greater than that of the sheet matrix 111.

[0263] The thermal conductivity of the aerosol matrix sheet or matrix strip 112 can be any one of the following values ​​or any value between two of the following: 2.0 W / (m·K), 2.5 W / (m·K), 2.6 W / (m·K), 2.8 W / (m·K), 3 W / (m·K), 3.2 W / (m·K), 3.5 W / (m·K), 3.6 W / (m·K), 3.8 W / (m·K), 4 W / (m·K), 4.2 W / (m·K), 4.3 W / (m·K), and 4.5 W / (m·K).

[0264] Furthermore, by setting the thermal conductivity of powder 116 to be greater than that of the aerosol matrix sheet, the influence of powder 116 on the thermal conductivity of the aerosol matrix sheet can be reduced while controlling the viscosity and porosity of the aerosol matrix sheet.

[0265] Please refer to Figure 19. The matrix segment 11 is columnar. Along the radial direction of the matrix segment 11, the maximum number of winding layers of the aerosol matrix sheet is 1 to 5 layers. For example, it can be 1 layer, 1.5 layers, 1.8 layers, 2 layers, 2.5 layers, 2.7 layers, 3 layers, 3.3 layers, 3.5 layers, 4 layers, 5 layers, etc.

[0266] It should be noted that the radial direction of the matrix segment 11 mentioned above refers to the direction away from the axis of the matrix segment 11, and does not specifically mean that the matrix segment 11 must be cylindrical.

[0267] The cross-sectional shape of the matrix segment 11 is not limited; for example, it can be elliptical, circular, regular polygonal, etc., and there are no restrictions here.

[0268] The maximum number of winding layers refers to the value obtained by dividing 360° by the central angle of the aerosol matrix sheet's end relative to the starting end in the winding direction, on a plane perpendicular to the first direction, with the center of the matrix segment 11. Therefore, the maximum number of winding layers can be a positive integer or a decimal. For example, if the central angle of the aerosol matrix sheet's end relative to the starting end is 720°, the maximum number of winding layers is 2 turns. If the central angle is 900°, the maximum number of winding layers is 2.5 turns.

[0269] It should be noted that, since the maximum number of winding layers is 1 to 5, the end of the aerosol matrix sheet must be wound at least 360° around the beginning.

[0270] Taking Figure 19 as an example, point O indicates the center of matrix segment 11, and straight line L1 indicates the position of the end when the number of winding layers is exactly a positive integer. That is, if the number of winding layers is exactly a positive integer, then the end of the aerosol matrix sheet is approximately located on straight line L1. In the specific embodiment shown in Figure 1, the end of the aerosol matrix sheet is located on straight line L2. Therefore, the number of winding layers corresponding to the specific embodiment shown in Figure 1 is 3 + β / 360°. For example, when β is 90°, the corresponding number of winding layers is 3 + 90° / 360° = 3.25.

[0271] In this embodiment, the connecting region 113 connects two adjacent matrix strips 112, forming a thin sheet of aerosol matrix material with interlocking strands. The sheet is then wound 1 to 5 times. If the number of winding layers is less than one, the roundness of the matrix section 11 after winding is poor, which is not conducive to subsequent composite bonding. Furthermore, the strength of the aerosol-generated product 10 is poor after molding, and it is prone to deformation. If the number of winding layers is higher than five, the matrix section 11 is too dense, resulting in greater suction resistance. Moreover, the pressure is too great, and the layers are prone to adhesion, leading to increasingly greater suction resistance.

[0272] The matrix segment 11 provided in this application embodiment is formed by winding an aerosol matrix sheet. The number of winding layers is 1 to 5 turns, which is beneficial for subsequent splicing, has good strength, is not easily deformed, and can also take into account appropriate suction resistance.

[0273] Preferably, the maximum number of winding layers of the aerosol matrix sheet is 2 to 4. This is beneficial for further improving subsequent bonding performance, resulting in better strength and reasonable suction resistance.

[0274] More preferably, the maximum number of winding layers of the aerosol matrix sheet is 2.2 to 3.5 layers. This range allows for a better balance between structural strength, splicing performance, and suction resistance.

[0275] In some embodiments, the viscosity of the sheet matrix 111 is 500N to 800N (Newtons). For example, the viscosity can be 500N, 550N, 600N, 620N, 650N, 680N, 700N, 710N, 730N, 750N, 780N, 800N, etc.

[0276] The adhesiveness of the sheet matrix 111 refers to the adhesion and bonding properties exhibited during processing and use. It originates from the natural components (proteins, sugars, etc.) in the raw materials and the adhesives, reflecting the bonding ability between particles, between sheet layers, between the sheet and the equipment, and between the matrix segment 11 and the outer wrapping layer 15 during the processing of the sheet.

[0277] The viscosity of the sheet matrix 111 can be determined by referring to the method specified in the full texture analysis of the TA.XTPlus texture analyzer of Surface Measurement Systems Limited (SMS) in the UK.

[0278] In this embodiment, the viscosity range of the substrate segment 11 and the sheet-like substrate 111 is appropriately between 500 and 800 N. If it is below 500 N, the ability of the medium to bond and form is poor, the adhesion of particles on the medium surface is poor, and the powder 116 ratio is high. If it is above 800 N, the sheet will stick to the equipment during processing, affecting the processing and forming. After the sheet is rolled, adhesion occurs between layers and between the sheet and the cigarette paper, reducing the number and size of the air passages, resulting in excessive suction resistance and a decrease in smoke volume. In addition, if the viscosity of the medium is high due to an excessively high content of smoke-generating agent, the medium is also prone to absorbing moisture.

[0279] In addition, from the perspective of suction effect, the viscosity of the sheet matrix 111 within the above range has a better initial smoke volume and average smoke volume. If the viscosity is too high, it is not conducive to the release of smoke-generating agent and aroma. If the viscosity is too low, the sheet matrix 111 has a loose structure and is prone to collapse after being heated, which will block the ventilation channel and affect subsequent release.

[0280] In some embodiments, the pH value (Potential of Hydrogen, i.e., hydrogen ion activity) of the sheet matrix 111 is 5 to 8.

[0281] The pH can be 5.0, 5.2, 5.5, 5.7, 6, 6.3, 6.5, 6.8, 7, 7.2, 7.4, 7.6, 7.9, 8.0, etc.

[0282] The pH value can be determined according to the method specified in GB5009.237—2016 "National Food Safety Standard for Determination of pH Value in Food".

[0283] If the pH value is below 5.0, it approaches the isoelectric point of the protein, and the protein's cross-linking ability decreases, leading to a decrease in the elasticity of the sheet matrix 111. If the pH value is above 8.0, the protein's gelation ability is stronger under alkaline conditions, which will result in excessive elasticity of the sheet matrix 111. Therefore, a pH value in the range of 5.0 to 8.0 is suitable.

[0284] In some specific embodiments, the material of the sheet matrix 111 includes: 8 to 14 parts by weight of protein source, 20 to 45 parts by weight of fiber source, 10 to 20 parts by weight of inorganic filler, and 2 to 8 parts by weight of adhesive.

[0285] For example, the protein source includes one or more of rice protein, wheat protein, soy protein, and pea protein.

[0286] For example, the fiber source includes one or more of bamboo fiber, isatis root fiber, soybean fiber, pea fiber, rice bran fiber, broadleaf fiber, and microcrystalline cellulose.

[0287] The particle size of the protein source and fiber source is 80 mesh to 120 mesh.

[0288] For example, the adhesive includes one or more of guar gum, xanthan gum, carrageenan, sodium polyacrylate, sodium carboxymethyl cellulose, locust gum, konjac gum, and gellan gum.

[0289] For example, the inorganic filler includes one or more of light calcium carbonate and heavy calcium carbonate.

[0290] The particle size of the inorganic filler is 160-200 mesh.

[0291] In this embodiment, the slurry with the above-mentioned ratio has good fluidity, which allows the matrix slurry to be cast quickly and evenly, has good processing performance, is conducive to molding, and can also take into account good mechanical properties, such as elongation at break and tensile strength.

[0292] Along the extension direction of the matrix strip 112, the elongation at break of the sheet-like matrix 111 is 10% to 30%. It can be understood that the extension direction of the matrix strip 112 can be interpreted as a primary direction, longitudinal. For example, it could be 10%, 13%, 15%, 18%, 20%, 24%, 27%, 29%, 30%, etc. That is, the longitudinal elongation at break of the sheet-like matrix 111 is 10% to 30%.

[0293] Elongation at break refers to the ratio of the deformation a material undergoes from the start of stress to the final fracture during the tensile process to its initial length. It is an important parameter for measuring the ductility and toughness of a material.

[0294] The elongation at break can be measured according to the method specified in GB / T 22898-2008 "Determination of tensile strength of paper and paperboard by constant rate tensile test". The width of the cut sheet is 15±0.1mm.

[0295] The longitudinal elongation at break has a significant impact on the sheet matrix 111 and the performance of the matrix segment 11. For example, if the matrix strip 112 breaks, it will not only affect the transport of aerosols in the first direction, but may also cause the broken part to detach from the matrix segment 11.

[0296] The sheet matrix 111 is processed based on the material's ductility. During processing, the continuous conveying of the material results in high and low speed differences, causing stretching. Therefore, the material needs to possess a certain degree of toughness to prevent breakage and deformation during stretching. A longitudinal elongation at break of 10% to 30% is suitable for the sheet matrix 111. This indicates good ductility, facilitating processing into thin sheets, shaping, and maintaining a uniform product shape. It also reduces the likelihood of breakage during conveying, which is beneficial for automated control. If the elongation is below 10%, it indicates poor ductility, making processing into thin sheets difficult or resulting in more defects in the formed sheets. If it is above 30%, it indicates that the material is easily deformed under tensile force, hindering shaping and maintaining a uniform product shape, making it prone to breakage during conveying, or negatively impacting automated control.

[0297] Preferably, the elongation at break of the sheet-like matrix 111 is 12% to 20% along the extension direction of the matrix strip 112.

[0298] In some embodiments, the longitudinal tensile strength of the sheet matrix 111 along the extension direction of the matrix strip 112 ranges from 250 N / m to 800 N / m (Newtons per meter); and / or, the transverse tensile strength of the sheet matrix 111 along the arrangement direction of the plurality of matrix strips 112 is from 100 N / m to 250 N / m.

[0299] Tensile strength, also known as tensile strength or breaking strength, represents the breaking force per unit area.

[0300] Tensile strength is the maximum load that causes the test piece of sheet matrix 111 to break from its original cross-section.

[0301] The measurement standard can be a horizontal tensile strength measuring instrument, with a test sample width of 15mm and the thickness can be modified according to the actual thickness of the sample.

[0302] The sheet matrix 111 undergoes rolling, cutting, and tensile stress during material transport, requiring a certain tensile strength to ensure processing performance. Furthermore, it may be subjected to compression and impact during packaging, storage, and transportation, necessitating additional tensile strength to reduce breakage. Appropriate tensile strength ensures the sheet maintains its shape and uniformity during heating, facilitating better release of aerosol forming agents. If the longitudinal tensile strength exceeds 800 N / m, the sheet matrix 111 tends to have high hardness and a dense structure, which is detrimental to calendering processes, aerosol release, and aroma release. Conversely, if the tensile strength is below 50 N / m, insufficient longitudinal strength can lead to breakage and detachment. Therefore, a longitudinal strength of 400 N / m to 800 N / m is suitable.

[0303] The tensile strength of the sheet matrix 111 in the transverse direction is suitable to be between 100 N / m and 250 N / m. If the tensile strength in the transverse direction is lower than 100 N / m, the strength is low, and during the cutting process, not only will the sheet matrix 111 be separated at the dividing line, but cracks will also appear inside the sheet matrix 111, affecting the winding or gathering of the sheet matrix 111. If it is higher than 250 N / m, it will be more difficult to cut or maintain a regular shape during compression cutting.

[0304] Preferably, the longitudinal tensile strength of the sheet matrix 111 ranges from 350 N / m to 600 N / m; the transverse tensile strength of the sheet matrix 111 ranges from 150 N / m to 200 N / m.

[0305] In some embodiments, the maximum thickness of the connecting region 113 is less than the maximum thickness of the sheet matrix 111, and the maximum thickness of the connecting region 113 is set to 0.01 mm to 0.5 mm.

[0306] The maximum thickness of the connecting area 113 can be 0.01mm, 0.1mm, 0.15mm, 0.2mm, 0.23mm, 0.28mm, 0.3mm, 0.35mm, 0.4mm, 0.5mm, etc. If the thickness of the connecting area 113 is too thin, it is difficult to process and is prone to breakage, resulting in more defective products. If the thickness of the connecting area 113 is too thick, the bending resistance of the connecting area 113 is relatively large during the winding or gathering of the sheet matrix 111, making it difficult to form a bundle. Moreover, after the winding or gathering is completed, there will still be a large residual stress, which can easily cause the matrix segment 11 to expand, which is not conducive to the standardized control of the appearance and size of the matrix segment 11.

[0307] In this embodiment, by setting the maximum thickness of the connecting region 113 to be less than the maximum thickness of the sheet matrix 111, and setting the maximum thickness of the connecting region 113 to 0.01mm to 0.5mm, the connecting region 113 forms a relatively flexible structure, which is beneficial for deformation during winding or gathering. Thus, through the deformation of the connecting region 113, the matrix strip 112 can remain basically unchanged or deform less. In addition, the moderate maximum thickness of the connecting region 113 provides suitable bending resistance and easy shaping, which is also beneficial for the standardized control of the appearance dimensions of the matrix segment 11.

[0308] In some embodiments, the maximum circumscribed circle diameter D2 of the substrate strip 112 is 0.7 mm to 1.2 mm, and the thermal conductivity of the substrate strip 112 is in the range of 3 W / (m·K) to 3.8 W / (m·K). Here, W represents watts, and m·K represents Kelvin per meter.

[0309] For example, D2 can be 0.7mm, 0.8mm, 0.9mm, 1.0mm, 1.1mm, 1.2mm, etc.

[0310] The thermal conductivity of the substrate strip 112 can be 3 W / (m·K), 3.2 W / (m·K), 3.5 W / (m·K), 3.6 W / (m·K), 3.8 W / (m·K), etc.

[0311] The thermal conductivity affects the heat transfer rate of the matrix strip 112. If it is lower than 3.0 W / (m·K), taking a single matrix strip 112 as an example, the outer ring of a single matrix strip 112 may be locally overheated, causing rapid carbonization and producing an unpleasant odor. Meanwhile, the core of the matrix strip 112 is underheated, the smoke-generating agent cannot be activated, and the overall smoke volume is small. If it is higher than 3.8 W / (m·K), the heat around the outer ring of the matrix strip 112 will be quickly conducted to the entire matrix strip 112, and the outer ring of the matrix strip 112 will not be able to heat up quickly and activate the smoke-generating agent. This results in a small amount of smoke in the first few puffs, poor consistency of smoke volume, and a relatively small amount of smoke in the last few puffs.

[0312] In this embodiment, since the maximum outer diameter of the matrix strip 112 is 0.7mm to 1.2mm and the thermal conductivity of the matrix strip 112 is 3.0W / (m·K) to 3.8W / (m·K), the heat conduction speed and radial size of a single matrix strip 112 are moderate. When the matrix strip 112 is heated, the heat of the outer ring of the matrix strip 112 can be effectively transferred to the core, so that the outer ring of the matrix strip 112 heats up quickly and activates the smoke-generating agent. The core of the matrix strip 112 is sufficiently heated, effectively activating the smoke-generating agent, so that the first few puffs and the last few puffs have an appropriate amount of smoke, and the consistency of the smoke amount is good.

[0313] In some embodiments, the porosity P1 of the sheet-like matrix 111 is 25% to 50%, i.e., 25% ≤ P1 ≤ 50%; the minimum spacing between adjacent matrix strips 112 is 0.02 mm to 0.2 mm, and the porosity P2 of the connecting region 113 is greater than the porosity P3 of the matrix strip 112, i.e., P2 > P3.

[0314] Porosity P1 can be 25%, 26%, 27%, 28%, 30%, 32%, 33%, 35%, 36%, 37%, 38%, 40%, 45%, 50%, etc.

[0315] For example, the porosity P2 of the matrix strip 112 is 20% to 45%, that is, 20% ≤ P1 ≤ 45%. The porosity P2 can be 20%, 25%, 26%, 27%, 28%, 30%, 32%, 33%, 35%, 36%, 37%, 38%, 40%, 45%, etc.

[0316] The porosity of the sheet-like matrix 111 is affected by the porosity of the matrix strips 112 and the porosity of the connecting region 113. Since P2>P3, therefore, P1>P2>P3.

[0317] It should be noted that if the porosity of the sheet matrix 111 is less than 25%, the structure of the sheet matrix 111 is dense, which is not conducive to the evaporation of moisture during drying. If the porosity of the sheet matrix 111 is higher than 50%, the structure of the sheet matrix 111 is loose, and the evaporation rate of moisture, aroma and other substances is too fast, and the aroma is also lost quickly.

[0318] In this embodiment, the porosity of the sheet-like matrix 111 is moderate, which is conducive to the evaporation of moisture during drying. The structure is moderately dense, maintaining good air permeability, and the evaporation rate of moisture, slag, and other substances is appropriate. The air permeability of the connecting region 113 is better than that of the matrix strip 112, which is more conducive to the formation of air channels 114 between two adjacent matrix strips 112 after the matrix segment 11 is formed. The connecting region 113 also facilitates the passage of aerosols from two adjacent air channels 114 through the connecting region 113.

[0319] In some embodiments, the porosity P1 of the matrix segment 11 is 10% to 40%, i.e., 10% ≤ P1 ≤ 40%. For example, 10% ≤ P1 < 25%, 25% ≤ P1 ≤ 40%, etc. The porosity P1 can be 10%, 15%, 20%, 25%, 26%, 27%, 28%, 30%, 32%, 33%, 35%, 36%, 37%, 38%, 40%, etc.

[0320] It should be noted that if the porosity of the matrix segment 11 is less than 10%, the structure of the matrix segment 11 is dense, which is not conducive to water volatilization during drying. If the porosity of the matrix segment 11 is higher than 40%, the structure of the matrix segment 11 is loose, and the volatilization rate of substances such as water and aroma is too fast, and the aroma loss is also fast.

[0321] The filling rate can be understood as the volume of the aerosol matrix sheet divided by the volume occupied by the contour of the matrix segment 11. The porosity can also be understood as: 1 - filling rate. For example, the filling rate of the matrix segment 11 is 60% - 90%. When the filling rate is 60%, the porosity is 1 - 60% = 40%.

[0322] In some embodiments, the elasticity Q1 of the matrix strip 112 or the sheet-like matrix 111 is 0.2 - 0.5, 0.2 ≤ Q1 ≤ 0.5. For example, it can be 0.2 ≤ Q1 < 0.3, 0.3 ≤ Q1 ≤ 0.4, 0.4 < Q1 ≤ 0.5. The elasticity Q1 can be 0.2, 0.23, 0.25, 0.28, 0.3, 0.34, 0.36, 0.4, 0.45, 0.5, etc.

[0323] The elasticity of the matrix strip 112 or the sheet-like matrix 111 refers to: its ability to restore to its original state after being deformed by force, which is a property of the material itself. Elasticity affects the calendering performance, tensile strength, and elongation at break of the sheet-like matrix 111, and also affects the rolling / gathering performance and anti-extrusion ability of the sheet-like matrix 111.

[0324] For example, during detection, a test piece of a standard size can be cut out from the matrix strip 112, and the elasticity in each direction of the test piece can be detected. For example, it can be the thickness direction, length direction, width direction, etc.

[0325] The elastic range of 0.2 - 0.5 in the embodiments of the present application is appropriate. If the elasticity is lower than 0.2, the tensile strength and elongation at break of the matrix strip 112 or the sheet-like matrix 111 are poor, and the anti-tensile processing performance is poor, which is likely to cause cracking or even fracture. If the elasticity is higher than 0.5, the restoring force of the sheet-like matrix 111 after pressing and cutting is too strong, which is not conducive to pressing and cutting processing and is not conducive to the standardized shaping of the product, such as thickness, width, etc.

[0326] The measurement of elasticity can be carried out according to the method specified in the total texture analysis of the TA.XTPlus texture analyzer of the British SMS company (Surface Measurement Systems Limited).

[0327] The matrix segment 11 provided by the embodiment of the present application, by setting the porosity of the matrix segment 11 within the range of 10% to 40%, and the elasticity of the matrix strip 112 or the sheet-shaped matrix 111 to be 0.2 to 0.5, can not only facilitate the volatilization of moisture during the processing, keep the moisture content of the matrix segment 11 within a suitable range, and reduce the loss of aroma during the processing of the matrix segment 11. In addition, it can also endow the sheet-shaped matrix 111 with good processing performance and mechanical properties, which is beneficial to the standardized shaping of the product. For example, the thickness, width, etc. are also convenient for processing and manufacturing, improving the qualified rate and consistency of the product, so as to improve the puffing consistency and puffing taste while taking into account the aerosol generation amount, aerosol temperature, and product qualified rate. In addition, controlling the elasticity within 0.2 to 0.5 is beneficial to the consistency of the porosity of the matrix segment 11 and the stability of the draw resistance.

[0328] In some embodiments, the elasticity of the matrix strip 112 or the sheet-shaped matrix 111 is 0.3 to 0.4. In this way, the tensile processing performance and the pressing and cutting processing performance can be further balanced, which is beneficial to further improving the standardized shaping of the product, such as thickness, width, etc.

[0329] In some embodiments, the draw resistance RTD (English full name: Resistance To Draw, abbreviation: RTD, which refers to the resistance encountered by air when passing through the aerosol-generating article 101 during smoking) of the matrix segment 11 is greater than 0 and less than or equal to 10 mm water column. That is, 0 mmWG < RTD ≤ 10 mmWG, where mmWG is a static pressure unit representing millimeters of water column. For example, the RTD can be 1 mmWG, 2 mmWG, 3 mmWG, 4 mmWG, 5 mmWG, 6 mmWG, 7 mmWG, 8 mmWG, 9 mmWG, 10 mmWG, etc.

[0330] Exemplarily, the draw resistance of the matrix segment 11 and the aerosol-generating article 10 can be detected according to GB / T 22838.5-2024.

[0331] The draw resistance range of this embodiment is reasonable, which facilitates the smooth passage of external air through the matrix segment 11, and is also beneficial to the more uniform and stable release of the aerosol, and is conducive to the release burst and smooth transmission of the aerosol.

[0332] In some embodiments, along the extension direction of the matrix strip 112, the tensile strength range of the sheet-shaped matrix 111 is 250 N / m to 800 N / m (newtons per meter), and the tensile strength in this direction can be understood as the longitudinal strength; along the arrangement direction of the plurality of matrix strips 112, the tensile strength range of the sheet-shaped matrix 111 is 50 N / m to 250 N / m, and the tensile strength in this direction can be understood as the transverse strength.

[0333] If the longitudinal tensile strength exceeds 800 N / m, the sheet matrix 111 tends to have high hardness and a dense structure, which is detrimental to processing techniques such as calendering, aerosol release, and aroma release. Conversely, if the tensile strength is below 250 N / m, the longitudinal strength is insufficient, easily leading to breakage and detachment. Therefore, a longitudinal strength of 250 N / m to 800 N / m is suitable.

[0334] The tensile strength of the sheet-like matrix 111 in the transverse direction is suitable to be between 50 N / m and 250 N / m. If the tensile strength in the transverse direction is lower than 50 N / m, the strength is low, and during segmentation, not only will the sheets be separated at the segmentation line, but cracks will also appear inside the sheet-like matrix 111, affecting the winding or gathering of the sheet-like matrix 111. If it is higher than 250 N / m, it will be more difficult to cut or maintain a regular shape during compression cutting. Preferably, the tensile strength of the sheet-like matrix 111 in the extension direction of the matrix strips 112 is in the range of 350 N / m to 600 N / m, and the tensile strength of the sheet-like matrix 111 in the arrangement direction of the multiple matrix strips 112 is in the range of 100 N / m to 200 N / m.

[0335] In some embodiments, the hardness of the substrate strip 112 (which can also be understood as the hardness of the sheet-like substrate 111) is 300N to 500N (Newtons). For example, it can be 300N, 320N, 340N, 360N, 380N, 400N, 430N, 450N, 500N, etc.

[0336] Hardness can be tested according to the methods specified in YC / T 152-2001 "Cigarette Hardness".

[0337] The hardness of matrix strip 112 is a major factor affecting its tensile strength and toughness. High strength in matrix strip 112 often results in high tensile strength, but may lead to lower toughness. This is beneficial for the tensile properties of matrix strip 112, but detrimental to its ductility. The hardness of matrix strip 112 largely depends on its microstructure. A hardness of 300N to 500N is appropriate, allowing the matrix strip 112 to maintain structural uniformity during aspiration, resulting in more even release of aerosols and aromas. If the hardness is below 300N, the tensile processing performance is relatively poor, and the structure of matrix strip 112 is prone to collapse during aspiration, which is also detrimental to the release of aerosols and aromas. If the hardness is above 500N, the structure of matrix strip 112 is too dense, which is unfavorable for calendering processing and also hinders the release of aerosols and aromas.

[0338] In some embodiments, the salt content of the sheet matrix 111 is 0.2% to 2%, and the pH value (Potential of Hydrogen, i.e., hydrogen ion activity) of the sheet matrix 111 is 5.0 to 8.0. For example, the pH can be 5.0, 5.2, 5.5, 5.7, 6, 6.3, 6.5, 6.8, 7, 7.2, 7.4, 7.6, 7.9, 8.0, etc.

[0339] The pH value can be determined according to the method specified in GB5009.237—2016 "National Food Safety Standard for Determination of pH Value in Food".

[0340] If the pH value is below 5.0, it approaches the isoelectric point of the protein, and the protein's cross-linking ability decreases, leading to a decrease in the elasticity of the sheet matrix 111. If the pH value is above 8.0, the protein's gelation ability is stronger under alkaline conditions, which will result in excessive elasticity of the sheet matrix 111. Therefore, a pH value in the range of 5.0 to 8.0 is suitable.

[0341] It should be noted that salt content refers to the content of salt substances, such as soluble metallic inorganic salts.

[0342] Soluble metallic inorganic salts can be normal salts, acid salts, basic salts, etc. Of course, they can also be other types of salts.

[0343] A normal salt is the product of complete acid-base neutralization and does not contain ionizable hydrogen atoms. + Or OH-. For example, sodium chloride (NaCl), potassium carbonate (K2CO3), and sodium carbonate (Na2CO3).

[0344] Acid salts are products of partial neutralization of acids, containing ionizable H+. + The anion retains acidic hydrogen. Examples include sodium dihydrogen phosphate (NaH₂PO₄), sodium pyrophosphate (Na₄P₂O₇), and sodium metaphosphate (NaPO₃).

[0345] Basic salts are products of partial neutralization by a base, containing ionizable OH- ions, while retaining hydroxyl groups in the cation.

[0346] In this embodiment, salts, especially inorganic metal salts, are beneficial for improving the thermal conductivity of the matrix strip 112.

[0347] In embodiments containing acidic and / or basic salts, it is also beneficial to adjust the pH value of the sheet matrix 111.

[0348] In some embodiments, the maximum size of the sheet-like substrate 111 in the first direction is 18 mm to 36 mm, for example, 18 mm, 20 mm, 22 mm, 25 mm, 28 mm, 30 mm, 33 mm, 35 mm, 36 mm, etc. This facilitates the winding or gathering of the sheet-like substrate 111 into a columnar structure of a suitable size.

[0349] In some embodiments, the specific heat capacity of the sheet matrix 111 is in the range of 2.0 J / (g·K) to 4.0 J / (g·K).

[0350] For example, the specific heat capacity of the sheet matrix 111 can be determined according to the method specified in GB / T 19466.4-2016 "Differential Scanning Calorimetry (DSC) for Plastics - Part 4: Determination of Specific Heat Capacity".

[0351] It should be noted that specific heat capacity is a physical quantity describing a substance's ability to absorb or release heat. Specific heat capacity refers to the amount of heat absorbed or released by a unit mass of a substance when its temperature rises or falls by 1°C. The larger the specific heat capacity of the sheet-like matrix 111, the more heat it needs to absorb during heating, which means that the heating element needs to increase the amount of heat. The matrix section 11 itself heats up more slowly, resulting in slow aerosol release and a small amount of smoke in the first few puffs. At the same time, during the slow heating process of the matrix section 11, volatile components (mainly aroma components) are more likely to be released in large quantities in the early stages of inhalation, resulting in poor consistency of aroma and smoke volume before and after inhalation.

[0352] For example, the specific heat capacity of the sheet matrix 111 or the matrix strip 112 can be any one of 2.0 J / (g·K), 2.1 J / (g·K), 2.2 J / (g·K), 2.3 J / (g·K), 2.5 J / (g·K)%, 2.6 J / (g·K)%, 2.8 J / (g·K)%, 3.0 J / (g·K), 3.2 J / (g·K), 3.5 J / (g·K), 3.6 J / (g·K), 3.8 J / (g·K), 3.9 J / (g·K), and 4.0 J / (g·K), or any value between two of them.

[0353] For example, if the specific heat capacity of the sheet-like matrix 111 or matrix strip 112 is lower than 2.0 J / (g·K), the temperature of the outermost matrix segment 11 will rise too quickly, potentially leading to structural collapse or carbonization of the matrix segment 11, which will affect the release of smoke components and the generation of unpleasant odors. If the specific heat capacity of the sheet-like matrix 111 or matrix strip 112 is higher than 4.0 J / (g·K), the outermost matrix segment 11 may heat up slowly, resulting in a small initial smoke volume. In some embodiments, the temperature range corresponding to the specific heat capacity range of the sheet-like matrix 111 or matrix strip 112 is 0-40°C. The matrix segment 11 provided in this application embodiment has its specific heat capacity set to be in the range of 2.0 J / (g·K) to 4.0 J / (g·K). This specific heat capacity allows for an appropriate temperature rise in the sheet matrix 111, so that the volatilization rate of the volatile components (mainly aroma components) of the sheet matrix 111 matches the aerosol generation rate, improving the consistency of aroma and smoke volume before and after inhalation. In addition, it also allows for an appropriate heat transfer rate between the matrix segments 11, reducing the temperature difference between the areas of the matrix segment 11 near the heat source and the areas far from the heat source. This improves the problems of increased release of burnt flavor substances, structural collapse, and carbonization of the matrix segment 11 caused by local overheating, as well as the problems of insufficient extraction (reduced release of effective components) and low initial smoke volume caused by local low temperature.

[0354] In some embodiments, by setting the moisture content of the sheet matrix 111 or matrix strip 112 to a range of 4% to 10%, and coordinating the specific heat capacity to a range of 2.0 J / (g·K) to 4.0 J / (g·K), it is more conducive to matching the volatilization rate of the volatile components (mainly aroma components) of the sheet matrix 111 with the aerosol generation rate, thereby improving the consistency of aroma and smoke volume before and after inhalation.

[0355] Preferably, the specific heat capacity of the sheet-like matrix 111 or the matrix strip 112 is in the range of 2.6 J / (g·K) to 3.2 J / (g·K), and / or the moisture content is in the range of 6% to 8%. This can further improve the consistency of aroma and smoke volume before and after inhalation, and further reduce the temperature difference between the area of ​​the matrix segment 11 near the heat source and the area away from the heat source.

[0356] In some embodiments, referring to FIG11, the maximum thickness of the sheet substrate 111 is in the range of 0.7 mm to 1.2 mm, and the maximum thickness of the connecting region 113 is in the range of 0.02 mm to 0.5 mm.

[0357] In other words, the maximum thickness of the connecting region 113 is less than the maximum thickness of the sheet matrix 111.

[0358] The maximum thickness of the sheet-like matrix 111 can be any one of 0.7 mm, 0.8 mm, 0.9 mm, 1 mm, 1.1 mm, or 1.2 mm, or any value between two of them.

[0359] If the sheet matrix 111 is too thin (i.e., the sheet matrix 111 is relatively thin), it may have poor strength, be easy to break, lose aroma quickly, and be unsuitable for consistency. If the sheet matrix 111 is too thick (i.e., the sheet matrix 111 is relatively thick), it may require a longer drying time or a higher temperature, which may result in aroma loss.

[0360] The maximum thickness of the connecting area 113 can be any one of 0.02mm, 0.05mm, 0.1mm, 0.15mm, 0.18mm, 0.2mm, 0.25mm, 0.26mm, 0.3mm, 0.33mm, 0.36mm, 0.4mm, 0.45mm, 0.47mm, or 0.5mm, or a value between any two of them.

[0361] By setting the maximum thickness of the sheet matrix 111 to within the range of 0.7 mm to 1.2 mm, the sheet matrix 111 possesses a certain structural strength, mitigating breakage issues and facilitating the drying process to achieve appropriate drying weight loss and moisture content. Furthermore, after the aerosol matrix sheet is wound or aggregated to form the matrix segment 11, it helps increase the filling volume of the matrix segment 11 and ensures a suitable air passage 114, improving suction resistance and thus enhancing the suction experience of the aerosol-generated product 10. By setting the maximum thickness of the connecting region 113 to 0.02 mm to 0.5 mm, after the aerosol matrix sheet is wound to form the matrix segment 11, a stable air passage 114 can be formed at the connecting region 113, thereby improving suction resistance stability. Additionally, it also ensures a certain structural strength between adjacent matrix strips 112.

[0362] In some embodiments, the drying weight loss of the sheet matrix 111 is in the range of 8% to 20%.

[0363] In other words, the sheet-like matrix 111 is composed of multiple matrix strips 112, which are connected by a small amount of filamentous fibers and adhesive (connecting region 113).

[0364] The matrix segment 11 provided in this embodiment allows adjacent matrix strips 112 to be connected together via a connecting area 113, thus making the sheet matrix 111 a one-piece structure. This improves the integrity and overall strength of the sheet matrix 111, thereby reducing displacement and breakage caused by vibration, bending, pressure, etc., during transportation, storage, or use. This further improves the stability of the draw resistance and also reduces the likelihood of matrix strips 112 breaking and falling off, which is beneficial for increasing smoke volume, draw stability, and yield. An appropriate drying loss rate can also reduce aroma loss during shelf life and extend shelf life.

[0365] The drying weight loss rate of the sheet matrix 111 refers to the weight loss ratio of the sheet matrix 111 after drying process to constant weight at a set temperature. The weight loss is caused by the further volatilization of volatile substances in the sheet matrix 111 after heat treatment exceeding the intensity of the drying process. Volatile substances include water, small molecule low flash point components in fragrance, etc.

[0366] For example, the weight loss on drying of the sheet matrix 111 can be determined according to the method specified in the first method, direct drying method, of GB5009.3-2016 "National Food Safety Standard - Determination of Moisture in Food".

[0367] For example, the temperature range for determining the drying weight loss rate using the oven drying method is 101–105℃.

[0368] During the production of matrix segment 11, the moisture content of the sheet matrix 111 is dried to a certain extent through a drying process to minimize the loss of aroma of the sheet matrix 111.

[0369] Drying processes include hot air drying, microwave drying, and infrared drying. Controlling drying parameters such as time and temperature, and the porosity of the medium affects the overflow channels of the liquid during the drying process. The initial moisture content of the medium before drying, the content of other liquid components, especially low-flash-point components in the fragrance, and the liquid components remaining in the medium after the drying process are the sources of drying weight loss. The moisture content should be controlled between 6-8%, and it is desirable to retain as much of the other fragrance components as possible, but too much will also affect the operation of the preceding processes.

[0370] It should be noted that if the drying weight loss rate is higher than 20%, it may be due to insufficient drying intensity of the drying process of the sheet matrix 111, resulting in excessive moisture content in the sheet matrix 111. Excessive moisture content may lead to high aerosol temperature and low smoke volume. If the drying weight loss rate is lower than 8%, it may be due to excessive drying intensity of the drying process of the sheet matrix 111, resulting in significant loss of both moisture and aroma in the sheet matrix 111, which may affect the aroma reproduction and consistency during inhalation.

[0371] The matrix segment 11 provided in this application embodiment is formed by winding or agglomerating aerosol matrix sheets. By setting the drying weight loss rate of the sheet matrix 111 to be in the range of 8% to 20%, the drying intensity of the drying process of the sheet matrix 111 can be appropriate, reducing the loss of moisture and aroma in the drying process, which is beneficial to the preservation of aroma and the consistency of inhalation. In addition, it can also improve the problem of high aerosol temperature and low smoke volume caused by excessive moisture content of the sheet matrix 111 to a certain extent, which is further beneficial to improving the inhalation consistency and inhalation taste of the matrix segment 11.

[0372] In some embodiments, the drying weight loss of the sheet matrix 111 is in the range of 12% to 16%.

[0373] The drying loss rate of the sheet matrix 111 can be any one of 12%, 12.5%, 13%, 13.5%, 14%, 14.5%, 15%, 15.5%, 16%, or any value between two of them.

[0374] Within this range of drying weight loss rate, the loss of moisture and aroma of the sheet matrix 111 during the drying process can be further reduced, and the problem of high aerosol temperature and low smoke volume caused by excessive moisture content of the sheet matrix 111 can be further improved, thereby further improving the smoking consistency and smoking taste of the matrix segment 11.

[0375] In some embodiments, the weight of water, protein and colloid contained in the matrix strip 112, based on the dry weight of the matrix strip 112, is in the range of 30-50%.

[0376] Based on the dry weight of matrix strip 112, the weight of water, protein and colloid contained in matrix strip 112 can be any one of 30%, 33%, 35%, 36%, 38%, 39%, 40%, 42%, 43%, 45%, 47%, 48%, 50% or any value between two of them.

[0377] For example, the colloids mainly include at least one of ethers, alcohols, esters and phenols with flash points below 60°C.

[0378] In some embodiments, the matrix strip 112 includes an aerosol forming agent, the weight of which is in the range of 10% to 40% based on the dry weight of the matrix strip 112.

[0379] The weight of the aerosol forming agent can be any one of 10%, 12%, 15%, 16%, 17%, 18%, 20%, 22%, 23%, 25%, 26%, 27%, 28%, 30%, 33%, 35%, 36%, 37%, 38%, or 40%, or any value between two of them.

[0380] Aerosol forming agents are used to form aerosols.

[0381] In some embodiments, the mass of the sheet-like matrix 111 of a single matrix segment 11 is in the range of 200 mg to 500 mg. The mass of the sheet-like matrix 111 of a single matrix segment 11 can be 200 mg, 220 mg, 230 mg, 250 mg, 280 mg, 300 mg, 320 mg, 340 mg, 350 mg, 370 mg, 400 mg, 420 mg, 430 mg, 450 mg, 480 mg, 500 mg, etc.

[0382] Understandably, the mass of the sheet matrix 111 in a single matrix segment 11 is affected by the density and actual volume of the sheet matrix 111. When the volume of the sheet matrix 111 is constant, if the mass of the sheet matrix 111 in a single matrix segment 11 is less than 200mg, the total smoke-generating agent and aroma loading of the matrix segment 11 is small, and the corresponding density of the sheet matrix 111 is small. Moisture and aroma components are easy to volatilize, and rapid weight loss will occur in a short time, which is not conducive to the drying process. If the mass of the sheet matrix 111 in a single matrix segment 11 is greater than 500mg, the corresponding density of the sheet matrix 111 is large, which is not conducive to the evaporation of moisture during processing. Drying will take a long time, which can easily lead to the loss of low flash point substances in the aroma, resulting in greater absorption resistance and hindering the activation of smoke-generating agents and aromas, thereby affecting the amount of smoke and the smoke temperature.

[0383] Preferably, the mass of the sheet-like matrix 111 of a single matrix segment 11 is in the range of 300 mg to 400 mg.

[0384] In some embodiments, the thermal conductivity of the substrate strip 112 is in the range of 2.5 W / (m·K) to 4.5 W / (m·K).

[0385] The thermal conductivity of the substrate strip 112 can be any one of the following values ​​or any value between two of the following: 2.5 W / (m·K), 2.6 W / (m·K), 2.8 W / (m·K), 3 W / (m·K), 3.2 W / (m·K), 3.5 W / (m·K), 3.6 W / (m·K), 3.8 W / (m·K), 4 W / (m·K), 4.2 W / (m·K), 4.3 W / (m·K), and 4.5 W / (m·K).

[0386] The thermal conductivity of matrix strip 112 can be determined according to the method specified in GB / T 22588-2008 "Measuring thermal diffusivity or thermal conductivity by flash method".

[0387] The thermal conductivity of the matrix strip 112 affects its heat transfer rate. During drying, assuming the matrix strip 112 has the same thickness and drying intensity, the thermal conductivity affects the drying rate; faster drying results in less aroma loss. If the thermal conductivity of the matrix strip 112 is less than 2.5 W / (m·K), the drying time is longer, leading to greater aroma loss. If the thermal conductivity is greater than 4.5 W / (m·K), the heat transfer rate is too fast, and heat from the surface layer is quickly conducted to the entire matrix strip 112. During inhalation, the medium temperature is low in the first few puffs, resulting in less smoke and poor consistency in smoke volume. The smoke volume is also relatively small in the last few puffs.

[0388] Please refer to Figure 9. This application also provides a method for preparing an aerosol matrix segment 11. The aerosol matrix segment 11 includes an aerosol matrix sheet, which includes a sheet-like matrix 111. The preparation method includes the following steps.

[0389] Step S101: Prepare the matrix slurry to form a sheet matrix 111.

[0390] By weight, mix 20-30 parts plant protein, 10-15 parts plant fiber, 15-25 parts smoke-generating agent, 10-15 parts flavoring, 2-5 parts inorganic salt or alkali, and 1-2 parts nicotine preparation and / or cooling agent to form a matrix slurry.

[0391] For example, the smoke-generating agent can be glycerin.

[0392] Here, a certain amount of water can also be added to the above mixed ingredients as needed, for example, 15-20 parts water.

[0393] For example, plant proteins include one or more of rice protein, wheat protein, soy protein, pea protein, and chickpea protein.

[0394] For example, plant fibers include one or more of soybean fiber, pea fiber, potato fiber, broadleaf fiber, and coniferous fiber.

[0395] For example, the adhesive includes one or more of carrageenan, konjac gum, locust bean gum, guar gum, xanthan gum, carboxymethyl cellulose, and sodium polyacrylate.

[0396] For example, the inorganic salt or alkali includes one or more of table salt, baking soda, sodium dihydrogen phosphate, and sodium pyrophosphate.

[0397] 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.

[0398] For example, the above raw materials are mixed to obtain a matrix slurry and then fermented.

[0399] For example, the matrix slurry is proofed at 25°C-40°C for 30-60 minutes.

[0400] Step S102: The sheet-like matrix 111 is cut into multiple matrix strips 112 to obtain an aerosol matrix sheet, and at least one connecting region 113 is formed between adjacent matrix strips 112.

[0401] Please refer to Figures 1 to 6. The formation of at least one connection region 113 between adjacent matrix strips 112 means that there may be one connection region 113 between adjacent matrix strips 112, or multiple connection regions 113 may be formed, or a portion of the matrix strips 112 may have one connection region 113 between them, while another portion of the matrix strips 112 may have multiple connection regions 113 between them.

[0402] Here, the connecting regions 113 formed between the matrix strips 112 can be the same or different.

[0403] It should be noted that the specific location of the connecting area 113 is not restricted here.

[0404] In an embodiment where a connecting region 113 is formed between adjacent substrate strips 112, the connecting region 113 may be formed at the end, middle, or between the end and middle of the medium strip; in an embodiment where multiple connecting regions 113 are formed between adjacent substrate strips 112, the multiple connecting regions 113 may be uniformly distributed or may not be uniformly distributed.

[0405] In some embodiments, as shown in Figures 1 to 6, the cutting direction of the sheet-like matrix 111 includes a second direction.

[0406] Here, the sheet-like matrix 111 can be cut only along the second direction, or it can be cut along other directions in addition to the second direction.

[0407] In some embodiments, as shown in Figures 1 and 2, the first direction is parallel to the second direction.

[0408] In other words, the extension direction of the matrix strip 112 is parallel to the cutting direction of the sheet matrix 111.

[0409] Here, the extension direction of the matrix strip 112 and the cutting direction of the sheet matrix 111 can be approximately parallel or completely parallel.

[0410] In some embodiments, as shown in Figures 5 and 6, the first direction intersects with the second direction.

[0411] Here, the extension direction of the matrix strip 112 intersects the cutting direction of the sheet matrix 111. That is, the extension direction of the matrix strip 112 is not parallel to the cutting direction of the sheet matrix 111. For example, the extension direction of the matrix strip 112 is perpendicular to the cutting direction of the sheet matrix 111.

[0412] Of course, in other embodiments, the sheet-like matrix 111 includes multiple cutting directions. For example, the sheet-like matrix 111 includes a cutting direction parallel to the extension direction of the matrix strip 112, and also includes a cutting direction intersecting the extension direction of the matrix strip 112.

[0413] In some embodiments, as shown in Figures 3 and 4, the second direction is curved.

[0414] In other words, the cutting direction of the sheet-like matrix 111 is curved, such as S-shaped or spiral.

[0415] Step S103: Wrap the aerosol matrix sheet along a direction perpendicular to the extension direction of the matrix strip 112 to obtain the aerosol matrix segment 11.

[0416] The aerosol matrix sheet is wound according to different requirements such as the number of suction ports, smoke volume, and smoke burst speed to obtain aerosol matrix segment 11.

[0417] For example, an aerosol matrix sheet is wound into a cylinder with a diameter of 3mm-8mm, and then the cylinder is cut into aerosol matrix segments 11 with a diameter of 12mm-15mm.

[0418] Step S104: Assembly. The aerosol matrix section 11 obtained in step S103 is assembled with other components such as plugs / cooling sections (the sealing section and the cooling section are connected) / filters to form a finished product that can be used in smoking devices with circumferential or central needle heating.

[0419] In one embodiment, referring to Figures 7 and 8, the aerosol matrix section 11, the cooling section 13, and the filtration section 12 can be coaxially arranged cylinders, with the first direction being the axial direction of the aerosol matrix section 11, the cooling section 13, and the filtration section 12.

[0420] It is understandable that during the user's suction process, the aerosol generated by the aerosol matrix section 11 flows towards the filter section 12 in the first direction.

[0421] In one embodiment, referring to Figures 7 and 8, the aerosol article further includes a breathable sealing element 16 disposed at at least one end of the aerosol matrix section 11.

[0422] The sealing element 16 is a membrane through which airflow can pass.

[0423] For example, the sealing element 16 can be cigarette paper, non-woven fabric, polymer, etc., which have good air permeability.

[0424] For example, the permeability of the sealing element 16 can be greater than or equal to 500 CU (CU is cm). 3 / (min*cm 2 (abbreviation of *kpa).

[0425] A sealing element 16 can be provided at one end of the aerosol matrix section 11 near the cooling section 13. That is, the aerosol generated by the aerosol matrix section 11 can pass through the sealing element 16 and enter the airflow channel, where it will be cooled. Here, the sealing element 16 can block the aerosol matrix section 11 to prevent the aerosol matrix section 11 or the matrix strips 112 within the aerosol matrix section 11 from accidentally entering the airflow channel (for example, the centrally heated heating element pushes the aerosol matrix section 11 into the airflow channel). This can prevent the aerosol matrix section 11 or the matrix strips 112 within the aerosol matrix section 11 from entering the airflow channel, thus reducing the number of heatable aerosol matrix sections 11 and affecting the heating effect, and also prevent the aerosol matrix section 11 from blocking the airflow channel and affecting the suction resistance.

[0426] A sealing element 16 can also be provided at the end of the aerosol matrix section 11 furthest from the cooling section 13. Here, the sealing element 16 prevents the matrix strip 112 particles within the aerosol matrix section 11 from falling out and remaining in the aerosol generating device 20. Furthermore, the condensate after aerosol condensation will also largely prevent leakage and residue within the aerosol generating device 20. Therefore, the aerosol generating device 20 achieves higher cleanliness when using aerosol products with this structure, and there is virtually no cross-contamination of flavors when the aerosol generating device 20 draws in aerosol products of different flavors.

[0427] In other embodiments, sealing elements 16 can also be covered at opposite ends of the airflow channel, thereby eliminating the need to distinguish the assembly direction of the cooling section 13 during the assembly of aerosol products, thus improving the ease of assembly.

[0428] In one embodiment, the cooling section 13 has an airflow channel (not shown). The aerosol matrix section 11 enters the airflow channel and is cooled within the airflow channel.

[0429] In other embodiments, the cooling section 13 may also adopt other structural forms, as long as it can achieve the cooling effect.

[0430] In some embodiments, the aerosol product may not have a functional segment, that is, the aerosol matrix segment 11 can constitute the aerosol product on its own for use in some special aerosol generating apparatus 20. For example, the aerosol generating apparatus 20 includes a nozzle and a cooling component, which can be reused or used once, simply by inserting or removing the aerosol matrix segment 11 into or out of the heating space.

[0431] In the above embodiments, the aerosol matrix segment 11 can be cylindrical, sheet-like, square, etc., and can be adapted according to the characteristics of the heating component and the aerosol generating device 20.

[0432] In one embodiment, referring to Figures 7 and 8, the aerosol article further includes a front plug section 14, which is disposed at one end of the aerosol matrix section 11 away from the functional section along a first direction.

[0433] During the use of aerosol products, the front plug section 14 can effectively reduce the probability of the aerosol matrix section 11 falling out of the outer wrapping layer 15.

[0434] The aerosol product has a distal lip end and a proximal lip end at its two ends along the first direction. The proximal lip end refers to the end of the aerosol product that is closer to the user when using it, while the distal lip end refers to the end that is farther away from the user when using it. The front plug section 14 is located at the distal lip end of the aerosol product. This effectively prevents the aerosol from condensing and flowing downwards, remaining in the receiving chamber 21 of the aerosol generating device 20, causing contamination inside the receiving chamber 21, making it difficult to clean, and preventing cross-contamination of flavors when inhaling different flavored aerosol products.

[0435] During the process of removing the aerosol product from the receiving chamber 21 of the aerosol generating device 20, even if the heating component and the aerosol matrix section 11 stick together, the front plug section 14 can push the aerosol matrix section 11 to move away from the receiving chamber 21, thereby facilitating the separation of the heating component and the aerosol matrix section 11 and making it easier for the aerosol product to be removed from the receiving chamber 21 of the aerosol generating device 20.

[0436] In one embodiment, referring to Figures 7 and 8, the front plug section 14 is a hollow tube structure. That is, the front plug section 14 has an internal channel that runs through one end of the front plug section 14 away from the aerosol matrix section 11 and the other end near the aerosol matrix section 11. The heating component can pass through the internal channel and be inserted into the aerosol matrix section 11. By setting the front plug section 14 as a hollow tube structure, the resistance encountered during the insertion of the aerosol product into the receiving chamber 21 of the aerosol generating device 20 is relatively low, which facilitates user operation.

[0437] In one embodiment, the front plug section 14 is made of a breathable material. This allows airflow to pass relatively smoothly through the front plug section 14, thereby reducing the suction resistance of the aerosol product and improving the user's suction experience.

[0438] In some embodiments, forming a sheet matrix 111 from a matrix slurry includes: forming a sheet matrix 111 from the matrix slurry by a casting method.

[0439] Here, the sheet matrix 111 is formed by casting matrix slurry, which has high production efficiency and stable molding process.

[0440] In other embodiments, forming the matrix slurry into a sheet matrix 111 includes forming the matrix slurry into a sheet matrix 111 by rolling.

[0441] For example, the matrix slurry is calendered by rollers, the gap between the rollers gradually decreases, and finally a sheet matrix 111 is formed by roller pressing.

[0442] It should be noted that there is no limit to the number of rollers.

[0443] For example, the number of rollers can be 5 pairs, 6 pairs, 7 pairs, 8 pairs, 9 pairs, 10 pairs, etc.

[0444] For example, the roller gap is gradually reduced from 15mm to 1mm.

[0445] Here, the sheet matrix 111 formed by the rolling process has a certain thickness, which helps to improve the structural strength of the sheet matrix 111.

[0446] In other embodiments, a portion of the sheet matrix 111 may be formed by casting, while another portion of the sheet matrix 111 may be formed by rolling.

[0447] In some embodiments, forming a sheet matrix 111 from the matrix slurry by roll pressing includes:

[0448] The matrix slurry is rolled into multiple pre-formed sheet matrix 111 by roller pressing, wherein the rolling direction of at least one pre-formed sheet matrix 111 is different from the rolling direction of the other pre-formed sheet matrix 111.

[0449] Multiple pre-fabricated sheet-like substrates 111 are stacked along the thickness direction of the aerosol matrix sheet and formed into sheet-like substrates 111 by roller pressing.

[0450] The fact that the rolling direction of at least one preformed sheet substrate 111 is different from the rolling direction of the other preformed sheet substrates 111 means that not all preformed sheet substrates 111 have the same rolling direction.

[0451] For example, the matrix slurry is first pressed by two pairs of rollers to form multiple pre-made sheet matrix 111, and then the multiple pre-made sheet matrix 111 stacked together are pressed by six pairs of rollers to combine the multiple pre-made sheet matrix 111 into a whole.

[0452] For example, the surfaces of the first few pairs of rollers are mirror-like, while the surfaces of the last pair or the following pairs of rollers are irregular, so that the surface of the aerosol matrix sheet is irregular, such as corrugated.

[0453] In other words, the matrix slurry is first rolled into multiple pre-formed sheet-like matrix 111. These pre-formed sheet-like matrix 111 are then stacked along the thickness direction of the aerosol matrix sheet and rolled together to form a whole. This process improves the overall strength of the aerosol matrix sheet and reduces the likelihood of breakage in areas with thinner sheet-like matrix 111. It also facilitates subsequent winding of the aerosol matrix sheet and helps reduce flaking after baking of the aerosol matrix segments 11.

[0454] In some embodiments, referring to FIG8, the aerosol matrix sheet includes a base layer 120, and after the step of preparing the matrix slurry into a sheet-like matrix 111, the method further includes:

[0455] A sheet-like matrix 111 is disposed on at least one side of the substrate layer 120 along the thickness direction of the aerosol matrix sheet, and the substrate layer 120 and the sheet-like matrix 111 are composited by rolling.

[0456] Here, the substrate 120 may have a sheet matrix 111 on one side along the thickness direction of the aerosol matrix sheet, or the substrate 120 may have a sheet matrix 111 on both sides along the thickness direction of the aerosol matrix sheet.

[0457] In this embodiment, by setting the base layer 120, it is beneficial to improve the structural strength of the aerosol matrix sheet, improve the integrity and overall strength of the aerosol matrix sheet, thereby reducing the displacement caused by factors such as vibration during transportation, storage or use, and thus further improving the stability of suction resistance. At the same time, it can also improve the situation of matrix strip 112 breaking and falling off, which is beneficial to improving suction stability and yield.

[0458] In some embodiments, the base layer 120 includes a substrate layer, which includes plant fiber fabric, nonwoven fabric and / or metal foil.

[0459] In other words, the substrate layer can be plant fiber fabric, non-woven fabric, metal foil, or both non-woven fabric and metal foil.

[0460] 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.

[0461] 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 matrix section 11.

[0462] In other embodiments, the substrate 120 includes a matrix layer constructed from a matrix slurry by casting, spraying, or dipping, and the matrix layer can be heated to generate an aerosol.

[0463] Both the matrix layer and the sheet matrix 111 can be heated to generate aerosols, which is conducive to the rapid explosion of smoke and a large amount of smoke. Furthermore, the aerosols generated by the matrix layer and the sheet matrix 111 can mix and interact with each other, which can increase the comfort of the aerosols and improve the quality of inhalation.

[0464] 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.

[0465] This application mainly uses casting and extrusion processes. The matrix layer is formed by casting matrix slurry, which has high production efficiency. The sheet matrix 111 adheres to the matrix layer. By adjusting the size and distribution of the matrix strips 112, sufficient air channels 114 can be formed. After the sheet matrix 111 is 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.

[0466] For example, the matrix slurry is first rolled by a first roller to form a sheet matrix 111, then the sheet matrix 111 is combined with the base layer 120 to form a whole, and then rolled by a second roller.

[0467] Here, there is no limit to the number of rollers in the first pass and the number of rollers in the second pass.

[0468] For example, the surfaces of the first few pairs of rollers are mirror-like, while the surfaces of the last pair or the following pairs of rollers are irregular, so that the surface of the aerosol matrix sheet is irregular, such as corrugated.

[0469] The following describes examples of the preparation methods for three embodiments of aerosol products.

[0470] First embodiment of a method for preparing aerosol products:

[0471] Step 1: Mixing. Take 20-30 parts of a compound of one or more of rice protein, wheat protein, soybean protein, pea protein, and chickpea protein (plant protein); 10-15 parts of a compound of one or more of soybean fiber, pea fiber, potato fiber, broadleaf fiber, and conifer fiber (plant fiber); 1-3 parts of a compound of one or more of carrageenan, konjac gum, xanthan gum, guar gum, locust bean gum, carboxymethyl cellulose, and sodium polyacrylate (adhesive); 15-25 parts of glycerin (smoke generator); 10-15 parts of flavoring; 2-5 parts of a compound of salt, baking soda, sodium dihydrogen phosphate, and sodium pyrophosphate (inorganic salt or alkali); 1-2 parts of nicotine preparation and / or cooling agent; and 15-20 parts of water. Mix thoroughly to obtain the matrix slurry.

[0472] Step 2: First proofing, proof the matrix slurry obtained in Step 1 at 25-40℃ for 30-60 minutes;

[0473] Step 3: Rolling. The matrix slurry that has been proofed in Step 2 is rolled through 7 pairs of rollers. The gap between the rollers is gradually reduced from 15mm to 1mm. Finally, the rolled sheet matrix 111 is wound into a matrix roll.

[0474] Step 4: Second proofing, roll the substrate from Step 3 and proof it at 25-40℃ for 30-60 minutes;

[0475] Step 5: Slicing. The matrix roll obtained in Step 4 is unwound to obtain sheet matrix 111. Then, the sheet matrix 111 is cut into matrix strips 112 with a diameter of 0.8-1.4 mm by a cutter to obtain aerosol matrix sheets. However, the matrix strips 112 are not completely cut apart, that is, at least one connecting area 113 is formed between adjacent matrix strips 112. The number of matrix strips 112 formed by a sheet matrix 111 can be 25-35.

[0476] Step 6: Rolling the aerosol matrix sheet obtained in Step 5 into a bundle, rolling it into a cylindrical shape using a rolling device, and then cutting the cylinder into 12-15mm aerosol matrix segments 11.

[0477] Step 7: Assembly. Assemble the aerosol matrix segment 11 obtained in Step 6 with other components such as plugs / cooling sections / filters to form an aerosol product that can be used in smoking devices with peripheral or central heating.

[0478] A second embodiment of the method for preparing aerosol products:

[0479] Step 1: Mixing. Take 20-30 parts of a compound of one or more of rice protein, wheat protein, soybean protein, pea protein, and chickpea protein (plant protein); 10-15 parts of a compound of one or more of soybean fiber, pea fiber, potato fiber, broadleaf fiber, and conifer fiber (plant fiber); 1-3 parts of a compound of one or more of carrageenan, konjac gum, xanthan gum, guar gum, locust bean gum, carboxymethyl cellulose, and sodium polyacrylate (adhesive); 15-25 parts of glycerin (smoke generator); 10-15 parts of flavoring; 2-5 parts of a compound of salt, baking soda, sodium dihydrogen phosphate, and sodium pyrophosphate (inorganic salt or alkali); 1-2 parts of nicotine preparation and / or cooling agent; and 15-20 parts of water. Mix thoroughly to obtain the matrix slurry.

[0480] Step 2: Proofing. Proof the matrix slurry obtained in Step 1 at 25-40℃ for 30-60 minutes.

[0481] Step 3: Rolling. The matrix slurry that has been fermented in Step 2 is rolled by 8 pairs of rollers. The first two pairs of rollers roll the matrix slurry to form multiple pre-made sheet matrix 111. The multiple pre-made sheet matrix 111 are stacked along the thickness direction of the aerosol matrix sheet and then rolled together by the third pair of rollers to form sheet matrix 111. The roller gap gradually decreases from 15mm to 1mm. The surface of the first 7 pairs of rollers is mirror-like, and the surface of the last pair of rollers is concave and convex. The resulting thin sheet is a corrugated aerosol matrix sheet.

[0482] Step 4: Drying. Dry the aerosol matrix sheet from Step 3 in a far-infrared drying tunnel for 2-3 minutes to set the corrugated aerosol matrix sheet shape.

[0483] Step 5: Rolling the aerosol matrix sheet obtained in Step 4 into a bundle, and then rolling it into a cylindrical shape with a diameter of 3mm-8mm using a rolling device. The cylinder is then cut into aerosol matrix segments 11 with a diameter of 12-15mm.

[0484] Step Six: Assembly. Assemble the aerosol matrix segment 11 obtained in Step Five with other components such as plugs / cooling sections / filters to form an aerosol product that can be used in smoking devices with peripheral or central heating.

[0485] A third embodiment of the method for preparing aerosol products:

[0486] Step 1: Mixing. Take 20-30 parts of a compound of one or more of rice protein, wheat protein, soybean protein, pea protein, and chickpea protein (plant protein); 10-15 parts of a compound of one or more of soybean fiber, pea fiber, potato fiber, broadleaf fiber, and conifer fiber (plant fiber); 1-3 parts of a compound of one or more of carrageenan, konjac gum, xanthan gum, guar gum, locust bean gum, carboxymethyl cellulose, and sodium polyacrylate (adhesive); 15-25 parts of glycerin (smoke generator); 10-15 parts of flavoring; 2-5 parts of a compound of salt, baking soda, sodium dihydrogen phosphate, and sodium pyrophosphate (inorganic salt or alkali); 1-2 parts of nicotine preparation and / or cooling agent; and 15-20 parts of water. Mix thoroughly to obtain the matrix slurry.

[0487] Step 2: Proofing. Proof the matrix slurry obtained in Step 1 at 25-40℃ for 30-60 minutes.

[0488] Step 3: Rolling. The matrix slurry that has been fermented in Step 2 is rolled through 7 pairs of rollers. After the first rolling, the material is combined with non-woven fabric or aluminum foil (the surface of the aluminum foil is pre-coated with glycerin) and then fed into the second roller. The gap between the rollers gradually decreases from 15mm to 1mm. The surface of the first 6 pairs of rollers is mirror-like, and the surface of the last pair of rollers is uneven. The resulting sheet is a corrugated aerosol matrix sheet.

[0489] Step 4: Drying. Dry the aerosol matrix sheet from Step 3 in a far-infrared drying tunnel for 2-3 minutes to set the corrugated aerosol matrix sheet shape.

[0490] Step 5: Rolling the aerosol matrix sheet obtained in Step 4 into a bundle, and then rolling it into a cylindrical shape with a diameter of 3mm-8mm using a rolling device. The cylinder is then cut into aerosol matrix segments 11 with a diameter of 12-15mm.

[0491] Step Six: Assembly. Assemble the aerosol matrix segment 11 obtained in Step Five with other components such as plugs / cooling sections / filters to form an aerosol product that can be used in smoking devices with peripheral or central heating.

[0492] Please refer to Figure 13. This application also provides another method for preparing the matrix segment 11, which includes the following steps.

[0493] Step S101: Prepare matrix slurry.

[0494] Step S102: The matrix slurry is extruded to obtain a primary sheet matrix 111 structure of the first thickness.

[0495] Step S103: Press the primary sheet matrix 111 structure into an aerosol matrix sheet of a second thickness, wherein the first thickness is greater than the second thickness.

[0496] Step S104: Cut the aerosol matrix sheet into multiple unbroken matrix strips 112.

[0497] Step S105: The aerosol matrix sheet after compression cutting is wound or gathered together.

[0498] In some embodiments, the raw materials for the matrix slurry include protein sources, fiber sources, adhesives, soluble inorganic salts, inorganic fillers, etc.

[0499] For example, the protein source includes one or more of rice protein, wheat protein, soy protein, and pea protein.

[0500] For example, the fiber source includes one or more of bamboo fiber, isatis root fiber, soybean fiber, pea fiber, rice bran fiber, broadleaf fiber, and microcrystalline cellulose.

[0501] The particle size of the protein source and fiber source is 80 mesh to 120 mesh.

[0502] For example, the adhesive includes one or more of guar gum, xanthan gum, carrageenan, sodium polyacrylate, sodium carboxymethyl cellulose, locust gum, konjac gum, and gellan gum.

[0503] For example, the soluble inorganic salt includes one or more of sodium chloride, potassium carbonate, and sodium carbonate, and / or, the soluble inorganic salt includes one or more of sodium dihydrogen phosphate, sodium pyrophosphate, and sodium metaphosphate.

[0504] For example, the inorganic filler includes one or more of light calcium carbonate, heavy calcium carbonate, and alumina.

[0505] The particle size of the inorganic filler is 160-200 mesh.

[0506] For example, by weight, take 8-14 parts of protein source, 20-45 parts of fiber source, 10-20 parts of inorganic filler, and 2-8 parts of adhesive, and mix them thoroughly. Separately, take 25-35 parts of glycerol, 8-15 parts of propylene glycol, 25-30 parts of fragrance, and 2-5 parts of inorganic salt, and dissolve them in 10-15 parts of water. Mix the liquid materials thoroughly, and then add the liquid materials to the stirred solid materials in the form of spray, and mix them thoroughly to obtain the matrix slurry.

[0507] For example, by weight, take 7-12 parts of protein source, 25-48 parts of fiber source, and 10-15 parts of inorganic filler, and mix them thoroughly. Separately, take 20-30 parts of glycerol, 10-16 parts of propylene glycol, 25-30 parts of fragrance, and 2-5 parts of inorganic salt, dissolve them in 10-15 parts of water, and 1-3 parts of TG enzyme solution (glutamine transaminase). Mix the liquid materials thoroughly, and then add the liquid materials to the stirred solid materials in the form of spray, and mix them thoroughly to obtain the matrix slurry.

[0508] For example, the above raw materials are mixed to obtain a matrix slurry and then proofed. For example, the matrix slurry is proofed at 45℃-55℃ for 60min-90min.

[0509] 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.

[0510] In step S102, the matrix slurry can be extruded using a screw extruder to obtain a primary sheet matrix 111 structure of the first thickness. It is understood that either a single-screw extruder or a twin-screw extruder can be used for extrusion.

[0511] For example, the width of the primary aerosol matrix sheet structure is 100mm to 200mm, the thickness is 2.0mm to 5.0mm, and the length is 10mm to 30mm.

[0512] For example, the screw of the extruder is modularly assembled, with the meshing functional section and the compression functional section each accounting for more than 15%, the extrusion pressure is 1.0 to 3.0 MPa, the screw speed is 30 to 100 rpm, and the temperature of each section in the segmented heated extrusion chamber is set to 40 to 130°C. The discharge width is 100 mm to 200 mm, the thickness is 2.0 mm to 5.0 mm, and the length is 10 mm to 30 mm.

[0513] The primary sheet matrix 111 structure obtained in step S102 is passed through 3 to 5 rollers, and finally the sheet is rolled into an aerosol matrix sheet with a thickness of 0.8 to 1.2 mm.

[0514] For example, the primary sheet matrix 111 structure is rolled into 8 sheets of 3.0 to 4.5 mm thickness by 8 pairs of rollers. The sheets are stacked in pairs and rolled into 4 sheets of 1.5 to 2.5 mm thickness by 4 pairs of rollers. The sheets are then stacked in pairs and rolled into 0.7 to 1.2 mm thickness by 2 pairs of rollers. The sheets are then stacked in pairs and rolled into 0.7 to 1.2 mm thickness by 1 pair of rollers.

[0515] For example, the primary aerosol matrix sheet structure is rolled into two sheets with a thickness of 3.0 to 4.5 mm by two pairs of rollers. The two sheets are stacked and then rolled to thicknesses of 5.0 to 5.5 mm, 4.0 to 4.5 mm, 3.0 to 3.5 mm, 2.0 to 2.5 mm, and 0.8 to 1.2 mm by five stages of rollers, respectively.

[0516] In step S104, referring to Figures 4 to 6, the aerosol matrix sheet is cut into multiple parallel and spaced matrix strips 112. At least one connection region 113 is formed between adjacent matrix strips 112. That is, there may be one connection region 113 between adjacent matrix strips 112, or multiple connection regions 113 may be formed. Alternatively, some matrix strips 112 may have one connection region 113 between them, while other matrix strips 112 may have multiple connection regions 113 between them.

[0517] Here, the connecting regions 113 formed between the matrix strips 112 can be the same or different.

[0518] It should be noted that the specific location of the connecting area 113 is not restricted here.

[0519] In an embodiment where a connecting region 113 is formed between adjacent substrate strips 112, the connecting region 113 may be formed at the end, middle, or between the end and middle of the medium strip; in an embodiment where multiple connecting regions 113 are formed between adjacent substrate strips 112, the multiple connecting regions 113 may be uniformly distributed or may not be uniformly distributed.

[0520] Adjacent matrix strips 112 can be connected together via connecting areas 113, making the aerosol matrix sheet a one-piece structure. This improves the integrity and overall strength of the aerosol matrix sheet, thereby reducing displacement and breakage caused by vibration, bending, pressure, and other factors during transportation, storage, or use. This further enhances the stability of the draw resistance and reduces the likelihood of matrix strips 112 breaking and detaching, thus improving vapor production, draw stability, and product yield. Furthermore, the matrix strips 112 are a homogeneous system, which facilitates continuous and uniform aerosol generation, thereby improving the draw experience.

[0521] For example, an aerosol matrix sheet with a diameter of 0.7 mm to 1.2 mm for a single matrix strip 112 can be formed by cutting with a round-edged cutter with a gap of 1 mm. The adjacent matrix strips 112 are arranged side by side but not completely cut off.

[0522] For example, in step S105, the aerosol matrix sheet is wound to form a cylinder with a diameter of 5.3mm-5.35mm or 7.1mm-7.15mm.

[0523] For example, the aerosol matrix sheet can be directly wound to form a matrix segment 11 of 12mm-15mm; or the aerosol matrix sheet can be directly wound to form a cylinder of 18mm-36mm, and then the cylinder can be cut into matrix segments 11 of 12mm-15mm.

[0524] In some embodiments, the matrix segment 11 obtained in step S105 is assembled with other components such as plugs / cooling segments (the sealing segment is connected to the cooling segment) / filters to form a finished product that can be used in smoking devices with circumferential or central needle heating.

[0525] After step S103 and before step S104, step S103S can be added: powder 116 is coated on the surface of the aerosol matrix sheet of the second thickness, as shown in Figure 17.

[0526] For example, powder 116 is metal powder 116, such as alumina powder 116.

[0527] After step S104, the aerosol matrix sheet obtained in step S104 can be dried at 90-110°C for 3-7 minutes.

[0528] The preparation method of this application embodiment forms an aerosol matrix sheet based on the extensibility of protein. However, it is necessary to prevent excessive protein source addition from causing the characteristic odor of burnt protein during suction. Therefore, the powder material in state 116 needs to be calendered into a continuous and regular sheet with a low protein content. If repeated calendering is used, dozens of calendering operations are required. This application embodiment uses an extruder for processing. Through the combined meshing and compression functions of the twin screw, the strong extrusion force of the twin screw can quickly form a continuous sheet with a certain tensile strength from the powder material. The number of calendering operations can be greatly reduced during subsequent calendering operations, thereby maintaining the surface porosity of the sheet as much as possible and increasing the amount of smoke released during suction.

[0529] The extrusion process involves gradually increasing pressure within the extrusion chamber and instantaneously depressurizing at the outlet. Therefore, the continuous stability of the extrusion speed is affected by various factors, including the uniformity of mixing, the continuity of feeding, differences in material particle size, and the processing precision of the equipment. It is difficult to guarantee a stable extrusion speed over a long period. Consequently, the extruded material inevitably experiences varying internal stresses due to speed differences, leading to localized material deformation, cracking, and breakage during the extrusion process. When this material then enters the calendering process, it becomes difficult to ensure the continuity and stability of the calendering process, resulting in cracking and breakage of the calendered sheets. This application overcomes the adverse effects of unstable extrusion speed by cutting the extruded material into regular small sheets, thus ensuring the continuity and stability of the calendering process feed.

[0530] The aerosol matrix sheet prepared by the preparation method of this application has a longitudinal tensile strength greater than or equal to 4.5 N, a first puff smoke volume greater than or equal to 5.5 mg, an average smoke volume greater than or equal to 6.5 mg / puff, and a puff-by-puff consistency RSD of less than 20%.

[0531] By coating at least one side of the sheet matrix 111 with powder 116 along its thickness direction, the stickiness of the sheet matrix 111 surface can be reduced, thereby improving the adhesion of the sheet matrix 111 to the processing equipment during processing, facilitating processing and shaping. It can also improve the adhesion between layers after the aerosol matrix sheet is wound or gathered, and between the aerosol matrix sheet and the outer wrapping layer 15, thereby improving the situation where the air passages 114 become fewer and smaller, so that the matrix segment 11 has uniform porosity, reducing the user's suction force, making suction easier, more natural and smoother, reducing suction fatigue, making it easier for the user to maintain continuous suction, and also reducing the situation of aerosol output jamming or unstable output, so as to achieve uniform and stable aerosol release, large aerosol volume, and improved suction taste and user comfort.

[0532] It should be noted that there are several specific types of powder 116.

[0533] In some embodiments, powder 116 is inorganic salt powder 116.

[0534] In this way, inorganic salt powder 116 can improve the adhesion between layers after the aerosol matrix sheet is wound or gathered, and between the aerosol matrix sheet and the outer wrapping layer 15. It can also make the matrix segment 11 have uniform pores. In addition, it will not affect the suction taste during the suction process.

[0535] For example, powder 116 comprises one or any mixture of light calcium carbonate, heavy calcium carbonate, and alumina.

[0536] In some embodiments, powder 116 is metal powder 116.

[0537] In some embodiments, the viscosity of the aerosol matrix sheet is 500N to 800N.

[0538] The viscosity of the aerosol matrix sheet can be any one of 500N, 520N, 550N, 560N, 580N, 600N, 630N, 650N, 670N, 690N, 700N, 710N, 750N, 760N, 770N, 800N, or any value between two of them.

[0539] The viscous properties of aerosol matrix sheets refer to their adhesion and stickiness during processing and use. They originate from the natural components (proteins, sugars, etc.) in the raw materials and the adhesives, reflecting the bonding ability between particles, between layers, between the aerosol matrix sheets and the equipment, and between the aerosol matrix sheets and the outer coating layer 15 during processing.

[0540] It should be noted that if the viscosity of the aerosol matrix sheet is below 500N, its adhesion and forming ability are poor, the surface of the aerosol matrix sheet has poor adhesion to the powder 116, and the powder 116 content is high. If the viscosity of the aerosol matrix sheet is above 800N, the aerosol matrix sheet may stick to the equipment during processing, affecting the forming process. Furthermore, after the aerosol matrix sheet is rolled, adhesion may occur between layers and between the aerosol matrix sheet and the outer wrapping layer 15, which may reduce the number and size of the air passages 114, resulting in excessive draw resistance and a decrease in smoke volume. In addition, if the aerosol matrix sheet has high viscosity due to an excessively high content of smoke-generating agent (aerosol forming agent), the aerosol matrix sheet is also prone to moisture absorption. Moisture-absorbing aerosol matrix sheet affects the smoke output speed and taste (due to higher smoke temperature).

[0541] By setting the viscosity of the aerosol matrix sheet to 500N to 800N, the aerosol matrix sheet can be better bonded and formed, and it is easier for the powder 116 to be coated on the surface of the sheet matrix 111, which facilitates the preparation of the matrix segment 11. In addition, it can also improve the adhesion between the sheet matrix 111 and the processing equipment during processing, making it easier to process and form. Furthermore, it can further improve the adhesion between layers after the aerosol matrix sheet is wound or gathered, and between the aerosol matrix sheet and the outer wrapping layer 15, thereby further improving the situation where the air channels 114 become fewer and smaller, so that the matrix segment 11 has uniform pores.

[0542] The preparation method in the specific embodiment that adds step S103S after step S103 and before step S104 includes the following steps:

[0543] Step S1001: Prepare matrix slurry.

[0544] By weight, take 8-14 parts of protein source, 20-45 parts of fiber source, 10-20 parts of inorganic filler, and 2-8 parts of adhesive, and mix them thoroughly. Separately, take 25-35 parts of glycerol, 8-15 parts of propylene glycol, 25-30 parts of fragrance, and 2-5 parts of inorganic salt, and dissolve them in 10-15 parts of water. Mix the liquid materials thoroughly, and then add the liquid materials to the stirred solid materials in the form of a spray. Mix thoroughly to obtain the matrix slurry.

[0545] Step S1002: Composite calendering.

[0546] The matrix slurry is rolled into 8 sheets of 3.0-4.5 mm thickness by 8 pairs of rollers. The sheets are stacked in pairs and rolled into 4 sheets of 1.5-2.5 mm thickness by 4 pairs of rollers. The sheets are then stacked in pairs and rolled into 0.7-1.2 mm thickness by 2 pairs of rollers. The sheets are then stacked in pairs and rolled into 0.7-1.2 mm thickness by 1 pair of rollers.

[0547] Step S1003: Powder coating. A layer of alumina powder 116 is uniformly coated on the surface of the aerosol matrix sheet obtained in step S1002.

[0548] Step S1004: Roll cutting. The aerosol matrix sheet coated with alumina powder 116 obtained in step S1003 is cut with a round-mouth cutter with a gap of 1mm to form aerosol matrix sheets with a diameter of 0.7mm to 1.2mm for a single matrix strip 112, and adjacent matrix strips 112 are arranged side by side but not completely cut off.

[0549] Step S1005: Drying. The aerosol matrix sheet obtained in step S1004 is dried by microwave with a microwave power of 6-12 kW, a drying temperature of 70-85°C, and a drying time of 20-40 s.

[0550] Step S1006: Rolling the aerosol matrix sheet obtained in step S1005 into small strips with a transverse width of 18-36 mm, and rolling them into round bars with a diameter of 5.30-5.35 mm or 7.10-7.15 mm using a rolling device.

[0551] Step S1007: Segmentation, the round bar obtained in step S1006 is segmented into matrix segments 11 of 12mm-15mm.

[0552] The following detailed description, in conjunction with the accompanying drawings and specific embodiments, provides further details of the preparation process of the matrix segment in several embodiments of this disclosure.

[0553] Example 1:

[0554] By weight, take 8 parts wheat protein, 45 parts 80-mesh bamboo fiber, 4 parts light calcium carbonate, 6 parts heavy calcium carbonate, 1 part konjac gum, and 2 parts carrageenan, and mix thoroughly. Dissolve 2 parts sodium chloride and 2 parts sodium dihydrogen phosphate in 10 parts water, and mix thoroughly with 35 parts glycerin, 15 parts propylene glycol, and 30 parts flavoring. Add the liquid material to the stirred solid material in a spray form and mix thoroughly. Then extrude the mixture through a twin-screw extruder. Each screw consists of 16 conveying modules, 4 meshing modules, 4 compression modules, and 1 exhaust module. The extrusion pressure is 1.6 MPa, and the screw speed is 50 rpm. The segmented heating modules have the following temperatures from front to back: The material is processed at 40℃, 40℃, 60℃, 60℃, 90℃, 90℃, 100℃, and 100℃, with an output width of 100mm, a thickness of 3.0mm, and a length of 10mm. It is then rolled into a sheet with a thickness of 0.8mm by passing it through 5 rollers. A layer of alumina powder 116 is uniformly coated on the surface of the sheet. The resulting sheet is cut with a round-edged cutter with a gap of 1mm to form a single matrix strip 112 with a diameter of 1.0mm. The adjacent matrix strips 112 are parallel but not completely cut. The sheet is dried at 110℃ for 3 minutes to obtain an aerosol matrix sheet. The obtained aerosol matrix sheet is divided into small strips with a transverse width of 32mm and rolled into a cylindrical shape with a diameter of 7.10mm by a rolling device.

[0555] Example 2:

[0556] By weight, take 11 parts pea protein, 35 parts 100-mesh pea fiber, 5 parts light calcium carbonate, 8 parts heavy calcium carbonate, 1 part xanthan gum, and 3 parts locust bean gum, mix thoroughly and set aside. Dissolve 2.5 parts potassium carbonate and 2 parts sodium pyrophosphate in 12 parts water, and mix thoroughly with 30 parts glycerin, 10 parts propylene glycol, and 28 parts flavoring. Add the liquid material to the stirred solid material in a spray form, mix thoroughly, and then extrude through a twin-screw extruder. Each screw consists of 16 conveying modules, 4 meshing modules, 4 compression modules, and 1 venting module. The extrusion pressure is 1.6 MPa, the screw speed is 50 rpm, and the segmented heating modules have temperatures from front to back of [temperature range missing]. The material is processed at 40℃, 40℃, 70℃, 70℃, 90℃, 90℃, 110℃, and 110℃, with an output width of 120mm, a thickness of 2.0mm, and a length of 15mm. It is then rolled into a sheet with a thickness of 0.9mm by passing it through four rollers. A layer of alumina powder 116 is uniformly coated on the surface of the sheet. The resulting sheet is cut with a round-edged cutter with a gap of 1mm to form a single matrix strip 112 with a diameter of 1.0mm. Adjacent matrix strips 112 are parallel but not completely cut. The sheet is dried at 100℃ for 4.5min to obtain an aerosol matrix sheet. The obtained aerosol matrix sheet is divided into small strips with a transverse width of 31mm and rolled into a cylindrical shape with a diameter of 7.10mm by a rolling device.

[0557] Example 3:

[0558] By weight, take 12 parts soybean protein, 40 parts 100-mesh soybean fiber, 5 parts light calcium carbonate, 8 parts heavy calcium carbonate, 1 part sodium polyacrylate, and 2 parts gellan gum, and mix thoroughly. Dissolve 1 part sodium chloride, 1 part sodium carbonate, and 2 parts sodium metaphosphate in 15 parts water, and mix thoroughly with 32 parts glycerin, 11 parts propylene glycol, and 27 parts flavoring. Then, add the liquid material to the stirred solid material in a spray form and mix thoroughly. Extrude the mixture through a twin-screw extruder. Each screw consists of 16 conveying modules, 4 meshing modules, 4 compression modules, and 1 venting module. The extrusion pressure is 1.7 MPa, the screw speed is 50 rpm, and the segmented heating modules have varying temperatures from front to back. The temperature was then increased to 40℃, 40℃, 70℃, 70℃, 90℃, 90℃, 110℃, and 110℃, with an output width of 140mm, a thickness of 2.0mm, and a length of 20mm. The material was then rolled into a sheet with a thickness of 1.0mm using five rollers. A layer of alumina powder 116 was uniformly coated onto the surface of the sheet. The resulting sheet was then cut with a round-edged cutter with a gap of 1.1mm to form a single matrix strip 112 with a diameter of 1.1mm. Adjacent matrix strips 112 were arranged side by side but not completely cut. This sheet was then dried at 90℃ for 7 minutes to obtain an aerosol matrix sheet. The aerosol matrix sheet was then divided into small strips with a transverse width of 30mm and rolled into a cylindrical shape with a diameter of 7.15mm using a rolling device.

[0559] Example 4:

[0560] By weight, take 11 parts soybean protein, 40 parts 100-mesh soybean fiber, 5 parts light calcium carbonate, 10 parts heavy calcium carbonate, 1 part sodium polyacrylate, and 2 parts gellan gum, and mix thoroughly. Dissolve 2 parts potassium carbonate, 1 part sodium dihydrogen phosphate, and 1 part sodium metaphosphate in 15 parts water, and mix thoroughly with 30 parts glycerin, 12 parts propylene glycol, and 25 parts flavoring. Then, add the liquid material to the stirred solid material in a spray form and mix thoroughly. Extrude the mixture through a twin-screw extruder. Each screw consists of 13 conveying modules, 5 meshing modules, 5 compression modules, and 1 exhaust module. The extrusion pressure is 1.8 MPa, the screw speed is 50 rpm, and the segmented heating module heats the material from front to back. The temperatures are successively set at 40℃, 40℃, 70℃, 70℃, 90℃, 90℃, 110℃, and 110℃, with an output width of 140mm, a thickness of 2.0mm, and a length of 20mm. The material is then rolled into a sheet with a thickness of 1.0mm using five rollers. A layer of alumina powder 116 is uniformly coated onto the surface of the sheet. The resulting sheet is cut with a round-edged cutter with a gap of 1.1mm to form a single matrix strip 112 with a diameter of 1.1mm. Adjacent matrix strips 112 are parallel but not completely cut. This sheet is dried at 98℃ for 6 minutes to obtain an aerosol matrix sheet. The obtained aerosol matrix sheet is divided into small strips with a transverse width of 29mm and rolled into a cylindrical shape with a diameter of 7.15mm using a rolling device.

[0561] Example 5:

[0562] By weight, take 14 parts rice protein, 35 parts 100-mesh rice bran fiber, 5 parts light calcium carbonate, 10 parts heavy calcium carbonate, 2 parts guar gum, and 2 parts sodium carboxymethyl cellulose, and mix thoroughly. Dissolve 2 parts sodium carbonate, 1 part sodium dihydrogen phosphate, and 1 part sodium pyrophosphate in 15 parts water, and mix thoroughly with 35 parts glycerin, 15 parts propylene glycol, and 30 parts flavoring. Then, add the liquid material to the stirred solid material in a spray form and mix thoroughly. Extrude the mixture through a twin-screw extruder. Each screw consists of 13 conveying modules, 5 meshing modules, 5 compression modules, and 2 venting modules. The extrusion pressure is 1.6 MPa, the screw speed is 50 rpm, and the segmented heating modules heat from front to back. The temperatures are successively set at 40℃, 60℃, 70℃, 80℃, 90℃, 100℃, 130℃, and 110℃, with an output width of 150mm, a thickness of 2.5mm, and a length of 18mm. The material is then rolled into a sheet with a thickness of 1.0mm using four rollers. A layer of alumina powder 116 is uniformly coated on the surface of the sheet. The resulting sheet is cut with a round-edged cutter with a gap of 1.0mm to form a single matrix strip 112 with a diameter of 1.0mm. Adjacent matrix strips 112 are parallel but not completely cut. This sheet is dried at 105℃ for 4 minutes to obtain an aerosol matrix sheet. The obtained aerosol matrix sheet is divided into small strips with a transverse width of 29mm, which are then rolled into a cylindrical shape with a diameter of 7.15mm using a rolling device.

[0563] Comparative Example 1:

[0564] By weight, take 20 parts wheat protein, 25 parts 80-mesh bamboo fiber, 6 parts light calcium carbonate, 12 parts heavy calcium carbonate, 1 part konjac gum, and 2 parts carrageenan, and mix thoroughly. Dissolve 2 parts sodium chloride and 2 parts sodium dihydrogen phosphate in 10 parts water, and mix thoroughly with 35 parts glycerin, 15 parts propylene glycol, and 30 parts flavoring. Add the liquid material to the stirred solid material in a spray form and mix thoroughly. Then extrude the mixture through a twin-screw extruder. Each screw consists of 13 conveying modules, 5 meshing modules, 5 compression modules, and 2 venting modules. The extrusion pressure is 1.8 MPa, and the screw speed is 50 rpm. The heating module has temperatures ranging from 40℃, 60℃, 70℃, 80℃, 90℃, 120℃, 150℃, and 110℃ from front to back. The output width is 100mm and the thickness is 1.2mm. A layer of alumina powder 116 is uniformly coated on the surface of the sheet. The resulting sheet is cut with a round-edged cutter with a 1mm gap to form a single matrix strip 112 with a diameter of 1.0mm. Adjacent matrix strips 112 are parallel but not completely cut. This sheet is dried at 100℃ for 4 minutes to obtain an aerosol matrix sheet. The obtained aerosol matrix sheet is divided into small strips with a transverse width of 27mm, which are then rolled into a cylindrical shape with a diameter of 7.10mm using a rolling device.

[0565] Comparative Example 2:

[0566] By weight, take 8 parts rice protein, 45 parts 100-mesh rice bran fiber, 5 parts light calcium carbonate, 10 parts heavy calcium carbonate, 2 parts guar gum, and 2 parts sodium carboxymethyl cellulose, mix thoroughly and set aside. Dissolve 2 parts potassium carbonate, 1 part sodium dihydrogen phosphate, and 1 part sodium metaphosphate in 15 parts water, and mix thoroughly with 35 parts glycerin, 15 parts propylene glycol, and 30 parts flavoring. Then, add the liquid material to the stirred solid material in a spray form, mix thoroughly, and pass through a 5-stage roller press. A thin sheet with a thickness of 0.8 mm is drawn out, and a layer of alumina powder 116 is uniformly coated on the surface of the sheet. The resulting sheet is cut with a round-mouth cutter with a gap of 1.0 mm to form a single matrix strip 112 with a diameter of 1.0 mm. The adjacent matrix strips 112 are parallel but not completely cut. The sheet is dried at 110°C for 5 min to obtain an aerosol matrix sheet. The obtained aerosol matrix sheet is divided into small strips with a transverse width of 32 mm, and rolled into a cylindrical shape with a diameter of 7.10 mm by a rolling device.

[0567] The aerosol matrix sheet and matrix segment 11 obtained above were analyzed, and the results are as follows:

[0568] In the table above, g / cm 3 It is expressed in grams per cubic centimeter, and mg / puff indicates the amount of nicotine released per puff (in milligrams).

[0569] The main factors affecting the drying weight loss of aerosol matrix sheets include: ① the adsorption of moisture and fragrance components by components such as proteins and adhesives; ② the influence of extrusion and calendering processes on the density of aerosol matrix sheets; ③ the drying intensity in the drying process, mainly including drying temperature and time; ④ the thickness of the aerosol matrix sheet; ⑤ the thermal conductivity of the aerosol matrix sheet; and ⑥ the content and flash point of volatile components in the fragrance.

[0570] The test data shows that, comparing Examples 1-5, regarding the combination of protein source and adhesive, under similar moisture drying effects, the wheat protein and adhesive system generally has a stronger affinity for flavor and less flavor loss, while rice protein has a relatively weaker affinity and greater flavor loss, with the soybean protein and pea protein system falling in between. Comparing the parameters of the extrusion and calendering processes, higher temperatures and pressures, as well as more calendering stages, result in a denser aerosol matrix sheet, stronger inter-component melt cross-linking, higher density, and thus, higher drying intensity. At the same moisture content, greater flavor loss occurs. Drying intensity is affected by temperature and time. As drying temperature increases, drying efficiency initially increases and then decreases. At a certain temperature, the surface of the aerosol matrix sheet dries rapidly, forming a hard crust that hinders internal moisture migration to the surface. Thicker aerosol matrix sheets require longer drying times and result in greater aroma loss. The thermal conductivity of the aerosol matrix sheet affects the local or overall heat transfer performance of the aerosol matrix sheet. If the thermal conductivity is low, the matrix segment 11 is prone to overheating locally. If the thermal conductivity is high, the heat needs to be heated to the entire matrix segment 11 in a short time. The thermal conductivity of the matrix segment 11 is greatly affected by the content of the metal inorganic salts in it.

[0571] In Comparative Examples 1 and 2, the wheat protein and adhesive system, along with the high temperature and pressure of the extrusion process, resulted in a denser structure for the aerosol matrix sheets. Compared to the examples, with similar drying strength, the drying effect was lower, and the moisture content and drying weight loss of the aerosol matrix sheets were greater. In contrast, the rice protein and adhesive system, along with the rolling parameters of the calendering process, exhibited relatively poor cross-linking properties, leading to easy volatilization of moisture and flavor components during the drying process. Consequently, the moisture content and drying weight loss of the resulting media section were lower than in the examples. During the extrusion process, as the temperature increases, the volatile substances vaporize upon discharge, creating a swelling and pore-forming effect on the surface of the aerosol matrix sheets. Therefore, the content of volatile components is lower than in the calendering process, resulting in greater porosity.

[0572] Based on the combined results of the embodiments and comparative examples, it can be seen that when the adhesive and process keep the hydrophilicity and lipophilicity of the aerosol matrix sheet within an appropriate range, the cross-linked structure is more ordered, which is more conducive to the formation of pore structure. Within an appropriate range of moisture drying, the aroma loss is small, and the drying weight loss rate of the finished product is relatively large. From the perspective of the inhalation effect, the smoke generator and aroma have relatively smooth release channels, the aroma loss is small, and the aroma reproduction and consistency are good. However, if the hydrophilicity and lipophilicity of the medium are too strong, although the drying weight loss rate of the medium is high and the aroma is not easily released, the smoke generator is also not easily released from the perspective of the inhalation effect, and the smoke volume is small. However, the hydrophilicity and lipophilicity are too poor, and both moisture and aroma components are easily lost. However, due to the relatively loose and disordered structure, it is not conducive to the heat transfer and temperature rise of the medium. From the perspective of the inhalation effect of the medium, the smoke volume is also small, the aroma loss is large, and the aroma reproduction and consistency are also poor.

[0573] The preparation process of the matrix segment in several other specific embodiments of this disclosure will be described in further detail below.

[0574] Example 6:

[0575] By weight, take 8.5 parts wheat protein, 38 parts 80-mesh bamboo fiber, 4 parts light calcium carbonate, 8 parts heavy calcium carbonate, 1.6 parts konjac gum, and 2.8 parts carrageenan, and mix thoroughly. Dissolve 1.5 parts sodium chloride and 1.5 parts sodium dihydrogen phosphate in 15 parts water, and mix thoroughly with 35 parts glycerin, 16 parts propylene glycol, and 30 parts flavoring. Add the liquid material to the stirred solid material in a spray form and mix thoroughly. Then extrude the mixture through a twin-screw extruder. Each screw consists of 16 conveying modules, 4 meshing modules, 4 compression modules, and 1 exhaust module. The extrusion pressure is 1.4 MPa, the screw speed is 50 rpm, and the segmented heating module has a temperature range from front to back. The temperature is successively set at 40℃, 40℃, 60℃, 60℃, 90℃, 90℃, 100℃, and 100℃, with an output width of 100mm, a thickness of 3.0mm, and a length of 10mm. The material is then rolled into a sheet with a thickness of 0.8mm by three stages of rollers. A layer of alumina powder 116 is uniformly coated on the surface of the sheet. The resulting sheet is cut with a round-edged cutter with a gap of 1mm to form a single matrix strip 112 with a diameter of 1.0mm. Adjacent matrix strips 112 are parallel but not completely cut. This sheet is dried at 110℃ for 3 minutes to obtain an aerosol matrix sheet. The obtained aerosol matrix sheet is divided into small strips with a transverse width of 32mm and rolled into a cylindrical shape with a diameter of 7.10mm by a rolling device.

[0576] Example 7:

[0577] By weight, take 10.5 parts pea protein, 34 parts 100-mesh pea fiber, 4 parts light calcium carbonate, 10 parts heavy calcium carbonate, 1.5 parts xanthan gum, and 4.5 parts locust bean gum, mix thoroughly and set aside. Dissolve 2 parts potassium carbonate and 2 parts sodium pyrophosphate in 13.5 parts water, and mix thoroughly with 32 parts glycerin, 14 parts propylene glycol, and 28 parts flavoring. Then, add the liquid material to the stirred solid material in a spray form and mix thoroughly. Then, extrude the mixture through a twin-screw extruder. Each screw consists of 16 conveying modules, 4 meshing modules, 4 compression modules, and 1 venting module. The extrusion pressure is 1.5 MPa, the screw speed is 50 rpm, and the segmented heating module has a temperature range from front to back. The temperature is successively set at 40℃, 40℃, 70℃, 70℃, 90℃, 90℃, 110℃, and 110℃, with an output width of 120mm, a thickness of 2.0mm, and a length of 15mm. The material is then rolled into a sheet with a thickness of 0.9mm by four rollers. A layer of alumina powder 116 is uniformly coated on the surface of the sheet. The resulting sheet is cut with a round-edged cutter with a gap of 1mm to form a single matrix strip 112 with a diameter of 1.0mm. Adjacent matrix strips 112 are parallel but not completely cut. This sheet is dried at 100℃ for 4.5min to obtain an aerosol matrix sheet. The obtained aerosol matrix sheet is divided into small strips with a transverse width of 31mm and rolled into a cylindrical shape with a diameter of 7.10mm by a rolling device.

[0578] Example 8:

[0579] By weight, take 12 parts soybean protein, 35 parts 100-mesh soybean fiber, 5 parts light calcium carbonate, 10 parts heavy calcium carbonate, 1.5 parts sodium polyacrylate, and 2 parts gellan gum, and mix thoroughly. Dissolve 1 part sodium chloride, 1 part sodium carbonate, and 2 parts sodium metaphosphate in 12 parts water, and mix thoroughly with 30 parts glycerin, 15 parts propylene glycol, and 30 parts flavoring. Then, add the liquid material to the stirred solid material in a spray form and mix thoroughly. Extrude the mixture through a twin-screw extruder. Each screw consists of 16 conveying modules, 4 meshing modules, 4 compression modules, and 1 exhaust module. The extrusion pressure is 1.8 MPa, the screw speed is 50 rpm, and the segmented heating module heats the material from front to back. The temperatures are successively set at 40℃, 40℃, 70℃, 70℃, 90℃, 90℃, 110℃, and 110℃, with an output width of 140mm, a thickness of 2.0mm, and a length of 20mm. The material is then rolled into a sheet with a thickness of 1.0mm using four rollers. A layer of alumina powder 116 is uniformly coated on the surface of the sheet. The resulting sheet is cut with a round-edged cutter with a gap of 1.1mm to form a single matrix strip 112 with a diameter of 1.1mm. Adjacent matrix strips 112 are parallel but not completely cut. This sheet is dried at 90℃ for 7 minutes to obtain an aerosol matrix sheet. The obtained aerosol matrix sheet is divided into small strips with a transverse width of 30mm and rolled into a cylindrical shape with a diameter of 7.15mm using a rolling device.

[0580] Example 9:

[0581] By weight, take 11 parts soybean protein, 40 parts 100-mesh soybean fiber, 5 parts light calcium carbonate, 12 parts heavy calcium carbonate, 1 part sodium polyacrylate, and 2 parts gellan gum, and mix thoroughly. Dissolve 2 parts potassium carbonate, 1 part sodium dihydrogen phosphate, and 1 part sodium metaphosphate in 10 parts water, and mix thoroughly with 30 parts glycerin, 12 parts propylene glycol, and 28 parts flavoring. Then, add the liquid material to the stirred solid material in a spray form and mix thoroughly. Extrude the mixture through a twin-screw extruder. Each screw consists of 13 conveying modules, 5 meshing modules, 5 compression modules, and 2 exhaust modules. The extrusion pressure is 1.9 MPa, the screw speed is 50 rpm, and the segmented heating modules heat from front to back. The temperatures are successively set at 40℃, 40℃, 70℃, 70℃, 90℃, 90℃, 110℃, and 110℃, with an output width of 140mm, a thickness of 2.0mm, and a length of 20mm. The material is then rolled into a sheet with a thickness of 1.0mm using five rollers. A layer of alumina powder 116 is uniformly coated onto the surface of the sheet. The resulting sheet is cut with a round-edged cutter with a gap of 1.1mm to form a single matrix strip 112 with a diameter of 1.1mm. Adjacent matrix strips 112 are parallel but not completely cut. This sheet is dried at 98℃ for 6 minutes to obtain an aerosol matrix sheet. The obtained aerosol matrix sheet is divided into small strips with a transverse width of 29mm and rolled into a cylindrical shape with a diameter of 7.15mm using a rolling device.

[0582] Example 10:

[0583] By weight, take 12 parts rice protein, 35 parts 100-mesh rice bran fiber, 5 parts light calcium carbonate, 15 parts heavy calcium carbonate, 2.5 parts guar gum, and 2.5 parts sodium carboxymethyl cellulose, mix thoroughly and set aside. Dissolve 2 parts sodium carbonate, 1 part sodium dihydrogen phosphate, and 1 part sodium pyrophosphate in 15 parts water, and mix thoroughly with 35 parts glycerin, 15 parts propylene glycol, and 30 parts flavoring. Then, add the liquid material to the stirred solid material in a spray form and mix thoroughly. Extrude the mixture through a twin-screw extruder. Each screw consists of 16 conveying modules, 4 meshing modules, 4 compression modules, and 1 venting module. The extrusion pressure is 1.6 MPa, the screw speed is 60 rpm, and the segmented heating module runs from front to back. The temperatures were successively set to 40℃, 60℃, 70℃, 80℃, 90℃, 100℃, 130℃, and 110℃, with an output width of 150mm, a thickness of 2.5mm, and a length of 18mm. The material was then rolled into a sheet with a thickness of 1.0mm using four rollers. A layer of alumina powder 116 was uniformly coated onto the surface of the sheet. The resulting sheet was then cut with a round-edged cutter with a gap of 1.0mm to form a single matrix strip 112 with a diameter of 1.0mm. Adjacent matrix strips 112 were arranged side by side but not completely cut. This sheet was then dried at 105℃ for 4 minutes to obtain an aerosol matrix sheet. The aerosol matrix sheet was then divided into small strips with a transverse width of 29mm and rolled into a cylindrical shape with a diameter of 7.15mm using a rolling device.

[0584] Comparative Example 3:

[0585] By weight, take 18 parts wheat protein, 28 parts 80-mesh bamboo fiber, 4 parts light calcium carbonate, 8 parts heavy calcium carbonate, 2 parts konjac gum, and 3 parts carrageenan, and mix thoroughly. Dissolve 2 parts sodium chloride and 2 parts sodium dihydrogen phosphate in 10 parts water, and mix thoroughly with 28 parts glycerin, 15 parts propylene glycol, and 25 parts flavoring. Add the liquid material to the stirred solid material in a spray form and mix thoroughly. Then extrude the mixture through a twin-screw extruder. Each screw consists of 13 conveying modules, 5 meshing modules, 5 compression modules, and 2 venting modules. The extrusion pressure is 2.2 MPa, and the screw speed is 70 rpm. The heating module has temperatures ranging from 40℃, 60℃, 70℃, 80℃, 90℃, 120℃, 150℃, and 110℃ from front to back. The output width is 100mm and the thickness is 1.2mm. A layer of alumina powder 116 is uniformly coated on the surface of the sheet. The resulting sheet is cut with a round-edged cutter with a 1mm gap to form a single matrix strip 112 with a diameter of 1.0mm. Adjacent matrix strips 112 are parallel but not completely cut. This sheet is dried at 110℃ for 5 minutes to obtain an aerosol matrix sheet. The obtained aerosol matrix sheet is divided into small strips with a transverse width of 27mm, which are then rolled into a cylindrical shape with a diameter of 7.10mm using a rolling device.

[0586] Comparative Example 4:

[0587] By weight, take 14 parts rice protein, 32 parts 100-mesh rice bran fiber, 6 parts light calcium carbonate, 12 parts heavy calcium carbonate, 2.5 parts guar gum, and 2.5 parts sodium carboxymethyl cellulose, and mix thoroughly. Dissolve 2 parts potassium carbonate, 1 part sodium dihydrogen phosphate, and 1 part sodium metaphosphate in 18 parts water, and mix thoroughly with 33 parts glycerin, 15 parts propylene glycol, and 30 parts flavoring. Then, add the liquid material to the stirred solid material in a spray form, mix thoroughly, and pass through a 5-stage roller. The aerosol matrix sheet is rolled into a sheet with a thickness of 0.8 mm using a rolling mill. The surface of the sheet is uniformly coated with a layer of alumina powder 116. The resulting sheet is cut with a round-mouth cutter with a gap of 1.0 mm to form a single matrix strip 112 with a diameter of 1.0 mm. The adjacent matrix strips 112 are parallel but not completely cut. The sheet is dried at 100°C for 3 min to obtain an aerosol matrix sheet. The obtained aerosol matrix sheet is divided into small strips with a transverse width of 32 mm and rolled into a cylindrical shape with a diameter of 7.15 mm using a rolling mill.

[0588] The aerosol matrix sheet and matrix segment 11 obtained above were analyzed, and the results are as follows:

[0589] The test data shows that, compared with Examples 6-10 and Comparative Examples 3-4, one of the factors affecting the specific heat capacity of the sheet matrix 111 is the content of its liquid components, such as water, flavoring, glycerin, and propylene glycol. Generally, the specific heat capacity of liquids is higher than that of solids. Another influencing factor is the density of the sheet matrix 111, which depends on the degree of cross-linking and density of the sheet matrix 111 itself. Comparing the cross-linking properties of protein sources and colloidal combinations, wheat protein system has the best cross-linking properties, while rice protein has the worst. The high temperature and pressure of the extrusion process will make the sheet matrix 111 denser, and some components may even undergo phase transformation under high temperature and pressure. The stronger the effect, the more volatile substances are vaporized and lost during extrusion, and the lower the specific heat capacity of the sheet matrix 111. The calendering process, because it does not involve high temperature, has a weaker impact on the specific heat capacity than the extrusion process.

[0590] From the perspective of suction effect, the larger the specific heat capacity, the greater the heat required for the sheet matrix 111 to heat up. The initial smoke volume of the sheet matrix 111 is generally small, and the average smoke volume is also small. On the other hand, the smaller the specific heat capacity of the sheet matrix 111, the more conducive it is to heating up the sheet matrix 111. The initial smoke volume is generally larger, and the average smoke volume is also larger.

[0591] Therefore, by adjusting the protein source and adhesive, the sheet matrix 111 forms a dense structure through cross-linking, which helps to reduce the specific heat capacity of the sheet matrix 111 and allows it to heat up rapidly. Adjusting the extrusion process parameters (temperature, pressure) causes the protein source, adhesive, and fibers to interact. Under high temperature and pressure, the density of the sheet matrix 111 increases, some components undergo phase transitions, and the specific heat capacity of the sheet matrix 111 decreases, which is beneficial for its rapid heating.

Claims

1. An aerosol matrix sheet, wherein, The aerosol matrix sheet includes a sheet-like matrix, which comprises a plurality of parallel matrix strips. At least one connecting region is formed between adjacent matrix strips, and the connecting region connects the adjacent matrix strips. The aerosol matrix sheet can be heated to generate aerosol.

2. The aerosol matrix sheet according to claim 1, wherein, At least a portion of the thickness of the connecting region is less than the maximum dimension of the adjacent matrix strip along the thickness direction of the aerosol matrix sheet.

3. The aerosol matrix sheet according to claim 1, wherein, The matrix strip is formed by pressing and cutting the sheet-like matrix, and the connecting region is formed on the pressing and cutting trajectory; or, a pressing groove is formed between adjacent matrix strips, and the bottom wall of the pressing groove constitutes the connecting region.

4. The aerosol matrix sheet according to any one of claims 1-3, wherein, The maximum dimension of the matrix strip in the thickness direction of the aerosol matrix sheet is 0.7mm-1.4mm, or the dimension of the connecting region in the thickness direction of the aerosol matrix sheet is 0.01mm-0.5mm.

5. The aerosol matrix sheet according to claim 1, wherein, The aerosol matrix sheet includes a base layer, and the sheet-like matrix is ​​disposed on at least one side of the base layer along the thickness direction of the aerosol matrix sheet.

6. The aerosol matrix sheet according to claim 1, wherein, The ratio of the maximum dimension of the connecting region to the maximum dimension of the matrix strip in the thickness direction of the aerosol matrix sheet is 1:2 to 1:

10.

7. The aerosol matrix sheet according to claim 1, wherein, The tensile strength of the substrate strip in the extension direction is 0.8N-3N; and / or the tensile strength of the connecting region is 0.1N-1.0N.

8. An aerosol matrix segment, wherein, The aerosol matrix segment includes the aerosol matrix sheet according to any one of claims 1-7, and the aerosol matrix segment is constructed as a wound structure formed by winding the aerosol matrix sheet.

9. The aerosol matrix segment according to claim 8, wherein, The winding direction of the aerosol matrix sheet is perpendicular to the extension direction of the matrix strip, or the length direction of the aerosol matrix segment is the same as the extension direction of the matrix strip.

10. The aerosol matrix segment according to claim 8, wherein, The length of the substrate segment is 8 mm to 20 mm, the equivalent diameter of the substrate segment is 5 mm to 8 mm, and the thermal conductivity of the sheet-like substrate is 2.0 W / (m·K) to 4.5 W / (m·K).

11. The aerosol matrix segment according to claim 10, wherein, The thermal conductivity of the connecting region is less than that of the matrix strip, and the thermal conductivity of the connecting region is greater than or equal to 0.5 W / (m·K).

12. The aerosol matrix segment according to claim 8, wherein, The moisture content of the sheet-like matrix is ​​4% to 10%; and / or, the density of the sheet-like matrix is ​​1.05 g / cm³. 3 ~1.40g / cm 3 .

13. The aerosol matrix segment according to claim 8, wherein, The porosity of the connecting region is greater than that of the matrix strip.

14. The aerosol matrix segment according to claim 8, wherein, The protein source content in the sheet-like matrix is ​​5%-15% by weight, or the protein source content in the matrix strip is 5%-15%.

15. The aerosol matrix segment according to claim 8, wherein, The drying weight loss of the sheet-like matrix is ​​in the range of 8% to 20%.

16. The aerosol matrix segment according to claim 15, wherein, The weight of water, protein and colloid contained in the matrix strip is in the range of 30-50% based on the dry weight of the matrix strip.

17. The aerosol matrix segment according to claim 16, wherein, The colloids mainly include at least one of ethers, alcohols, esters and phenols with flash points below 60°C.

18. The aerosol matrix segment according to claim 15, wherein, The maximum thickness of the connecting area is less than the maximum thickness of the sheet-like matrix, the maximum thickness of the sheet-like matrix is ​​in the range of 0.7 mm to 1.2 mm, and the minimum spacing between adjacent matrix strips is 0.01 mm to 0.5 mm.

19. The aerosol matrix segment according to claim 15, wherein, The matrix strip includes an aerosol forming agent, the weight of which is in the range of 10% to 40% based on the dry weight of the matrix strip.

20. The aerosol matrix segment according to claim 15, wherein, The mass of a single matrix segment is in the range of 200 mg to 500 mg.

21. The aerosol matrix segment according to claim 15, wherein, The porosity of the sheet matrix is ​​in the range of 25% to 40%, and / or the moisture content of the sheet matrix is ​​in the range of 6% to 8%.

22. The aerosol matrix segment according to claim 8, wherein, The thermal conductivity of the substrate strip is in the range of 2.5 W / (m·K) to 4.5 W / (m·K).

23. The aerosol matrix segment according to claim 8, wherein, The arrangement direction of the plurality of matrix strips is a first direction; The matrix segment is columnar, and the maximum number of winding layers of the aerosol matrix sheet along the radial direction of the matrix segment is 1 to 5.

24. The aerosol matrix segment according to claim 8, wherein, The viscosity of the sheet-like matrix is ​​500N to 800N.

25. The aerosol matrix segment according to claim 24, wherein, The pH value of the sheet-like matrix is ​​5 to 8.

26. The aerosol matrix segment according to claim 24, wherein, Along the extension direction of the matrix strip, the elongation at break of the sheet-like matrix is ​​10% to 30%.

27. The aerosol matrix segment according to claim 24, wherein, Along the extension direction of the matrix strips, the longitudinal tensile strength of the sheet matrix is ​​250 N / m to 800 N / m; and / or, the transverse tensile strength of the sheet matrix along the arrangement direction of the plurality of matrix strips is 100 N / m to 250 N / m.

28. The aerosol matrix segment according to claim 24, wherein, The porosity of the sheet-like matrix is ​​25% to 50%, the minimum spacing between adjacent matrix strips is 0.02 mm to 0.2 mm, and the porosity of the connecting region is greater than that of the matrix strips.

29. The aerosol matrix segment according to claim 24, wherein, The sheet-like matrix comprises: 8-14 parts by weight of protein source, 20-45 parts by weight of fiber source, 10-20 parts by weight of inorganic filler, and 2-8 parts by weight of adhesive.

30. The aerosol matrix segment according to claim 8, wherein, The porosity of the matrix segment is 10% to 40%, and the elasticity of the matrix strip or the sheet matrix is ​​0.2 to 0.

5.

31. The aerosol matrix segment according to claim 30, wherein, The elasticity of the matrix strip or the sheet matrix is ​​0.3 to 0.

4.

32. The aerosol matrix segment according to claim 30, wherein, The absorption resistance of the matrix segment is greater than 0 and less than or equal to 10 mm water column.

33. The aerosol matrix segment according to claim 8, wherein, The hardness of the matrix strip is 300N to 500N.

34. The aerosol matrix segment according to claim 33, wherein, The salt content of the sheet-like matrix is ​​0.2% to 2%, and the pH value of the sheet-like matrix is ​​5 to 8.

35. The aerosol matrix segment according to claim 33, wherein, The porosity of the matrix strips or sheet-like matrix is ​​5% to 30%; and / or, a plurality of matrix strips of the sheet-like matrix are arranged along a first direction, the maximum size of a single matrix strip in the first direction is 0.7 mm to 1.2 mm, and the minimum interval between adjacent matrix strips in the first direction is 0.01 mm to 0.3 mm.

36. The aerosol matrix segment according to claim 33, wherein, The moisture content of the matrix strip is in the range of 4% to 10%, and the specific heat capacity of the matrix strip is in the range of 2.0 J / (g·K) to 4.0 J / (g·K).

37. The aerosol matrix segment according to claim 33, wherein, The maximum thickness of the sheet-like matrix is ​​in the range of 0.7 mm to 1.2 mm, and the maximum thickness of the connecting region is in the range of 0.02 mm to 0.5 mm.

38. The aerosol matrix segment according to claim 8, wherein, The sheet-like matrix has an integral structure, and at least one surface of the sheet-like matrix along the thickness direction is coated with powder.

39. A method for preparing an aerosol matrix segment, wherein, include: Preparation of matrix slurry; The matrix slurry is extruded to obtain a primary sheet matrix structure of the first thickness; The primary sheet-like matrix structure is pressed into an aerosol matrix sheet of a second thickness, wherein the first thickness is greater than the second thickness; The aerosol matrix sheet was cut into multiple unbroken matrix strips; The aerosol matrix sheet after compression cutting is wound or gathered.

40. An aerosol product, wherein, The aerosol product includes the aerosol matrix segment as described in any one of claims 8-38.

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