A substrate segment and aerosol-generating article

Abstract

The embodiment of the present application provides a substrate section and an aerosol generating article. The substrate section is configured to be formed by winding or gathering an aerosol substrate sheet. The aerosol substrate sheet comprises a plurality of substrate strips arranged in parallel and at intervals and connecting areas clamped between adjacent substrate strips, wherein the porosity of the substrate section is 10% to 40%, and the elasticity of the substrate strip or the aerosol substrate sheet is 0.2 to 0.5. In this way, the substrate strip is a homogeneous system, which is conducive to continuous and uniform generation of aerosol, thereby improving the smoking experience; the range of porosity and elasticity is appropriate, which can facilitate the volatilization of moisture during processing, can make the water content of the substrate section be in a suitable range, and can make the aerosol substrate sheet have good processing performance and mechanical properties, which is conducive to the standardization of the product, such as thickness, width and the like, and is also conducive to processing and manufacturing, thereby improving the qualified product rate and consistency of the product.

Description

[0001] Cross-reference to related applications

[0002] This application is based on and claims priority to patent application No. 202411844283.8, filed on December 13, 2024, the entire contents of which are incorporated herein by reference. Technical Field

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

[0004] Aerosol generating articles can form aerosols by ignition or by heating without combustion (HNB). In HNB aerosol generating articles, the aerosol generating article is heated by an external heat source to a level sufficient to release aerosols. The aerosol generating article does not burn; instead, it is loaded with a smoke-generating agent. During use, the aerosol generating article is heated to release the smoke-generating agent and form an aerosol.

[0005] In existing aerosol generation systems, the inhalation experience is one of the indicators for evaluating the system's performance. Therefore, improving the inhalation experience is one of the research directions in the industry. Summary of the Invention

[0006] In view of this, embodiments of this application aim to provide a matrix segment and an aerosol-generating article for improving the smoking experience.

[0007] This application provides a matrix segment for being heated by a heating element to generate an aerosol.

[0008] The matrix segment is constructed by winding or aggregating aerosol matrix sheets, wherein the aerosol matrix sheets include multiple parallel and spaced matrix strips and connecting regions sandwiched between adjacent matrix strips;

[0009] The porosity of the matrix segment is 10%-40%, and the elasticity of the matrix strip or the aerosol matrix sheet is 0.2-0.5.

[0010] In some embodiments, the elasticity of the matrix strip or the aerosol matrix sheet is 0.3 to 0.4.

[0011] In some implementations, the absorption resistance of the matrix segment is greater than 0 and less than or equal to 10 mm water column.

[0012] In some embodiments, the tensile strength of the aerosol matrix sheet ranges from 250 N / m to 800 N / m along the extension direction of the matrix strips, and from 50 N / m to 250 N / m along the arrangement direction of the plurality of matrix strips.

[0013] In some embodiments, the tensile strength of the aerosol matrix sheet ranges from 350 N / m to 600 N / m along the extension direction of the matrix strips, and from 100 N / m to 200 N / m along the arrangement direction of the plurality of matrix strips.

[0014] In some embodiments, the drying weight loss of the aerosol matrix sheet is in the range of 8% to 20%, and / or the hardness of the matrix strip is 300N to 500N.

[0015] In some embodiments, the salt content of the aerosol matrix sheet is 0.2% to 2%, and the pH value of the aerosol matrix sheet is 5 to 8.

[0016] In some embodiments, the moisture content of the aerosol matrix sheet is 4% to 10%; and / or, the density of the aerosol matrix sheet is 1.05 g / cm³. 3 ~1.40g / cm 3 .

[0017] In some embodiments, the porosity of the matrix strip or aerosol matrix sheet is 5% to 30%; and / or, a plurality of matrix strips of the aerosol matrix sheet 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.

[0018] In some embodiments, the aerosol matrix sheet has a maximum dimension of 0.7 mm to 1.2 mm in the thickness direction; and / or, a plurality of matrix strips of the aerosol matrix sheet are arranged along a first direction, and the aerosol matrix sheet has a maximum dimension of 18 mm to 36 mm in the first direction.

[0019] In some embodiments, the protein source content in the aerosol matrix sheet is 5%-15% by weight.

[0020] This application provides an aerosol-generating article comprising the matrix segment described in any of the above embodiments.

[0021] The matrix segment structure provided in this application embodiment is formed by winding or agglomerating an aerosol matrix sheet. The aerosol matrix sheet comprises multiple parallel and spaced matrix strips. This results in high drying efficiency and high consistency in moisture content and weight loss after drying, which is beneficial for improving the consistency and flavor of the matrix segment. Furthermore, after the aerosol matrix sheet is wound to form the matrix segment, a stable airway can be formed between adjacent matrix strips, thereby improving the stability of the draw resistance. The draw resistance of the matrix segment can also be adjusted by adjusting the size of the matrix strips. In addition, by forming at least one connecting area between adjacent matrix strips—that is, by connecting adjacent matrix strips together through the connecting area—the aerosol matrix sheet is designed as a single unit. This improves the integrity and overall strength of the aerosol matrix sheet, 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 occurrence of matrix strip breakage and detachment, which is beneficial for improving smoke volume, draw stability, and yield. Furthermore, the matrix strip is a homogeneous system, which is conducive to the continuous and uniform generation of aerosols, thereby improving the inhalation experience. Moreover, by setting the porosity of the matrix segment to a range of 10%–40% and the elasticity of the matrix strip or aerosol matrix sheet to 0.2–0.5, it facilitates moisture evaporation during processing, keeping the moisture content of the matrix segment within a suitable range and reducing aroma loss during processing. In addition, it gives the aerosol matrix sheet better processing and mechanical properties, which is beneficial for product standardization. For example, thickness and width are easier to manufacture, improving product yield and consistency. Thus, while considering aerosol generation, aerosol temperature, and product yield, it also improves inhalation consistency and flavor. Attached Figure Description

[0022] Figure 1 This is a flowchart illustrating the preparation method of the matrix segment in some embodiments of this application;

[0023] Figure 2 This is a schematic diagram of the structure of an aerosol generation system according to some embodiments of this application;

[0024] Figure 3 This is a schematic diagram of the structure of the aerosol-generating article according to the first embodiment of this application;

[0025] Figure 4 This is a schematic diagram of the structure of the aerosol matrix sheet according to the first embodiment of this application;

[0026] Figure 5 This is a schematic diagram of the structure of the aerosol matrix sheet according to the second embodiment of this application;

[0027] Figure 6This is a schematic diagram of the structure of the aerosol matrix sheet according to the third embodiment of this application;

[0028] Figure 7 This is a schematic diagram of the structure of the matrix segment in some embodiments of this application.

[0029] Explanation of reference numerals in the attached figures

[0030] 10. Aerosol generating product; 11. Matrix section; 111. Aerosol matrix sheet; 112. Matrix strip; 113. Connecting area; 114. Air passage; 115. Pressure groove; 12. Filter section; 13. Cooling section; 14. Forward plug section; 15. Outer wrapping layer; 20. Aerosol generating device; 21. Container chamber; 22. Heating element; 23. Energy supply element; 100. Aerosol generating system. Detailed Implementation

[0031] 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.

[0032] 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.

[0033] 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.

[0034] 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.

[0035] 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.

[0036] 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.

[0037] In the description of this application, the orientation or positional relationship of "first direction" is based on the orientation or positional relationship shown in the accompanying drawings. It should be understood that these orientation terms are only for the convenience of describing this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0038] The present application will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0039] Please see Figures 2 to 7 This application provides an aerosol generating article 10, which includes a matrix segment 11 in any embodiment of this application.

[0040] It should be noted that the matrix segment 11 in this embodiment can be used for suction by ignition or by heating without combustion. In this embodiment, the example of using the matrix segment 11 for suction by heating without combustion is described.

[0041] The matrix segment 11 extends along a first direction. Exemplarily, the first direction is... Figures 2 to 5 The direction indicated by L in the middle.

[0042] It should be noted that the aerosol generating article 10 extends in the same direction as the matrix segment 11. That is, the aerosol generating article 10 also extends along the first direction.

[0043] For example, the aerosol generating article 10 further includes a functional segment. The functional segment is disposed at one or both ends of the matrix segment 11 along a first direction.

[0044] For example, please refer to Figure 3The functional section includes the filter section 12.

[0045] When the aerosol generating product 10 is heated, the generated aerosol can flow through the filter section 12, which can filter out large particles and unwanted impurities in the aerosol. In other words, the aerosol generated by heating the aerosol generating product 10 is filtered through the filter section 12 and then drawn in by the user.

[0046] For example, please refer to Figure 3 The functional section includes a cooling section 13. The cooling section 13 can cool the flowing aerosol, improving the "burning" sensation when users inhale aerosol.

[0047] In an embodiment where the functional section includes both the filter section 12 and the cooling section 13, 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, i.e., near the lip end.

[0048] When the aerosol generating product 10 is heated, the aerosol generated first flows through the cooling section 13 for cooling. After cooling, the aerosol then flows through the filtration section 12, which filters out large particles and unwanted impurities from the aerosol. In other words, the aerosol generated by heating the aerosol generating product 10 is cooled and filtered sequentially through the cooling section 13 and the filtration section 12 before being drawn in by the user.

[0049] For example, please refer to Figure 3 The aerosol-generating product 10 also includes an outer coating layer 15.

[0050] The outer wrapping layer 15 wraps around the outer periphery of the functional segment and the matrix segment 11.

[0051] The aerosol generating product 10 is used in conjunction with an aerosol generating device 20 having a heating element. Specifically, the heating element heats and atomizes the matrix section 11 to generate aerosol, and the user draws the filtered aerosol through the filter section 12.

[0052] The method by which the heating element heats the substrate segment 11 is not limited. Exemplarily, the heating methods include center heating and peripheral heating. Center heating refers to the heating element being inserted into the substrate segment 11 to bake and heat it from the inside out. Peripheral heating refers to the heating element being positioned around the substrate segment 11 to bake and heat it from the outside in. These heating methods can specifically be at least one of resistance heating, electromagnetic heating, infrared heating, microwave heating, laser heating, etc., and are not specifically limited here.

[0053] It should be noted that the aerosol generating product 10 relies on the matrix section 11 to generate aerosols. The functional section is generally not used for heating to generate aerosols. However, some aerosol generating products 10 may have flavoring substances such as popping beads added to the functional section.

[0054] 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).

[0055] The outer wrapping layer 15 can be in the form of a hollow tube, and the 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.

[0056] For example, please refer to Figure 3 The functional section includes the front plug section 14.

[0057] 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.

[0058] 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.

[0059] In an embodiment where the functional section includes a filter section 12, a cooling section 13, and a front plug section, 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 is disposed at the other end of the matrix section 11 along the first direction.

[0060] Please see Figure 3 The first direction is the arrangement direction of the matrix section 11, the cooling section 13 and the filtration section 12. The aerosol generating product 10 is inserted into the aerosol generating device 20 along the first direction. The matrix section 11 is closer to the heating element. The aerosol generating product 10 is also taken out of the aerosol generating device 20 along the first direction. The length of the matrix section 11 along the first direction can be longer, shorter or the same as the length in other directions.

[0061] For example, when the outer contour of the matrix segment 11 is cylindrical, the first direction is the axial direction of the matrix segment 11. It should be noted that the axial length of the matrix segment 11 can be less than its diameter.

[0062] For example, when the outer contour of the matrix segment 11 is a cuboid, the first direction is still the direction defined above, that is, the arrangement direction of the matrix segment 11, the cooling segment 13 and the filtration segment 12, or the direction of taking and placing the aerosol generating product 10 on the aerosol generating device 20. The first direction of the matrix segment 11 can be any of the length, width and height of the cuboid.

[0063] Please see Figures 4 to 7 This application provides a matrix segment 11, which is constructed by winding or aggregating an aerosol matrix sheet 111.

[0064] Exemplary examples, in some embodiments, the matrix segment 11 is constructed as a wound structure formed by winding an aerosol matrix sheet 111, 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 111. The clustering can be achieved by means of folding, bending, compression, etc.

[0065] here, Figure 7 The matrix segment 11 shown can be either a wound structure formed by winding the aerosol matrix sheet 111, or a clustered structure formed by aggregating the aerosol matrix sheet 111.

[0066] It should be noted that the aerosol matrix sheet 111 can be formed by winding or agglomerating into a matrix segment 11, or by winding into a winding structure and then forming multiple matrix segments 11 by cutting or other means, or by agglomerating into an agglomerating structure and then forming multiple matrix segments 11 by cutting or other means.

[0067] In the embodiments of this application, "multiple" refers to two or more items.

[0068] Please see Figures 4 to 7 The aerosol matrix sheet 111 includes a plurality of parallel and spaced matrix strips 112 and a connecting region 113 sandwiched between adjacent matrix strips 112, that is, the connecting region 113 connects adjacent matrix strips 112. The aerosol matrix sheet 111 can be heated to generate aerosol.

[0069] For example, the connecting region 113 contains plant fibers.

[0070] The connecting region 113 can be a structure composed of one or more of plant fibers, non-woven fabric, or other components. The connecting region 113 has moderate flexibility and air permeability, which is beneficial for improving the air permeability of the aerosol matrix sheet 111 while connecting adjacent matrix strips 112, thereby improving the connection reliability and integrity between adjacent matrix strips 112.

[0071] Please see Figures 4 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 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.

[0072] Here, the connecting regions 113 formed between the matrix strips 112 can be the same or different.

[0073] It should be noted that the specific location of the connecting area 113 is not restricted here.

[0074] 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 non-uniformly distributed. For example, the aerosol matrix sheet 111 is cut into multiple matrix strips 112 by using a cutter or a mold, but at least some of the adjacent matrix strips 112 are not cut off, that is, there will still be connecting regions 113 connecting the adjacent matrix strips 112.

[0075] 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 an outward protrusion of a portion of the surface of the aerosol matrix sheet 111, with depressions formed between adjacent protrusions, and at least a portion of the depressions constitutes the connecting region 113. The aerosol matrix sheet 111 is pressed using a mold or rollers, so that multiple protruding strips, i.e., matrix strips 112, are formed on at least one side of the aerosol matrix sheet 111. Figure 6 As shown, a groove 115 is formed between adjacent substrate strips 112, and the bottom region of the groove 115 constitutes a connecting region 113. Of course, it is understood that the groove 115 formed by pressing may be discontinuous in some embodiments.

[0076] 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 strips 112. The dimension of the connecting region 113 in the thickness direction of the aerosol matrix sheet 111 is smaller than the maximum dimension of the matrix strips 112 in the thickness direction of the aerosol matrix sheet 111; that is, the maximum thickness of the connecting region 113 is smaller than the maximum thickness of the aerosol matrix sheet 111. For example, the thickness of the bottom wall of the pressure groove 115 is smaller than the maximum dimension of the matrix strips 112 in the same direction as the bottom wall thickness.

[0077] 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.

[0078] In some related technologies, matrix segments are formed by binding multiple independent matrix strips together, such as by wrapping them tightly with a coating layer. However, the integrity of these multiple independent matrix strips is poor, resulting in low structural strength and making assembly and manufacturing difficult. During packaging, handling, transportation, or suction, the matrix strips may break and detach. In other related technologies, the matrix segments are composed of flakes, filaments, or granules. In granular technologies, filling processes can lead to unstable suction resistance. Furthermore, vibrations during transportation and storage can cause the granules in localized areas of the matrix segment to become increasingly compacted, resulting in increased suction resistance and a poor suction experience.

[0079] 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 matrix segment 11, can improve the situation of matrix strips 112 breaking and falling off, and is beneficial to improve the amount of smoke, the stability of suction and the yield rate.

[0080] The porosity P1 of the matrix segment 112 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.

[0081] 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 the evaporation of moisture during drying. If the porosity of the matrix segment 11 is higher than 40%, the structure of the pores of the matrix segment 11 is loose, and the evaporation rate of moisture, aroma and other substances is too fast, and the aroma is also lost quickly.

[0082] The filling rate can be understood as the volume of the aerosol matrix sheet 111 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%.

[0083] Among them, the determination of the porosity can be carried out according to the method specified in YC / T 473 - 2013 "Determination of Apparent Density, True Density and Internal Pore Volume of Cut Tobacco".

[0084] The elasticity Q1 of the matrix strip 112 or the aerosol matrix sheet 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.

[0085] The elasticity of the matrix strip 112 or the aerosol matrix sheet 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 will affect the calendering performance, tensile strength and elongation at break of the aerosol matrix sheet 111, and also affect the rolling / gathering performance, anti - extrusion ability, etc. of the aerosol matrix sheet 111.

[0086] For example, during detection, a test piece of 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.

[0087] The elastic range of 0.2 - 0.5 in the embodiments of this 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 aerosol matrix sheet 111 are poor, the anti - tensile processing performance is poor, and it is easy to cause cracking or even fracture. If the elasticity is higher than 0.5, the restoring force of the aerosol matrix sheet 111 after press - cutting is too strong, which is not conducive to press - cutting processing and is not conducive to the standardized shaping of the product, such as thickness, width, etc. In addition, if the elasticity is higher than 0.5, it may also seriously affect the porosity of the matrix segment, thereby affecting the draw resistance and抽吸 performance.

[0088] The determination 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).

[0089] The matrix segment 11 provided in this embodiment is formed by winding or agglomerating an aerosol matrix sheet 111. The aerosol matrix sheet 111 includes multiple parallel and spaced matrix strips 112. Therefore, the aerosol matrix sheet 111 has high drying efficiency and high consistency in moisture content and weight loss after drying, which is beneficial for improving the suction consistency and sucking experience of the matrix segment 11. Furthermore, after the aerosol matrix sheet 111 is wound or agglomerated to form the matrix segment 11, a stable airway 114 can be formed between adjacent matrix strips 112, thereby improving the stability of the suction resistance. The size of the matrix strips 112 can also be adjusted. The draw resistance of the matrix segment 11 is adjusted. Furthermore, by forming at least one connecting region 113 between adjacent matrix strips 112—that is, connecting adjacent matrix strips 112 together through the connecting region 113—the matrix segment 11 is designed as a single unit. This improves the integrity and overall strength of the matrix segment 11, 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, thus improving vapor production, vaping stability, and yield. In addition, the matrix strip 112 is a homogeneous system, which facilitates the continuous and uniform generation of aerosols, thereby enhancing the vaping experience. Furthermore, by setting the porosity of the matrix segment 11 to a range of 10%–40%, and setting the elasticity of the matrix strip 112 or aerosol matrix sheet 111 to 0.2–0.5, it facilitates the evaporation of moisture during processing, ensuring the moisture content of the matrix segment 11 remains within a suitable range. This also reduces aroma loss during processing. Additionally, it allows the aerosol matrix sheet 111 to possess better processing and mechanical properties, which is beneficial for product standardization. For example, thickness and width are easier to manufacture, improving product yield and consistency. Thus, while considering aerosol generation, aerosol temperature, and product yield, it also improves suction consistency and mouthfeel. Furthermore, controlling the elasticity to 0.2–0.5 contributes to the consistency of the matrix segment porosity and the stability of suction resistance.

[0090] In some embodiments, the elasticity of the matrix strip 112 or aerosol matrix sheet 111 is 0.3 to 0.4. This allows for a better balance between tensile and die-cutting performance, which is beneficial for further standardization of the product, such as in terms of thickness and width.

[0091] In some embodiments, please refer to Figure 6 The maximum thickness of the connecting region 113 is less than the maximum thickness of the aerosol matrix sheet 111.

[0092] 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.

[0093] The spacing between adjacent matrix strips 112 is the width of the connecting region 113 in the direction of arrangement of the matrix strips 112. The spacing between adjacent matrix strips 112 can form an airway 114, and the spacing between adjacent matrix strips 112 is the width of the airway 114 in the direction of arrangement of the matrix strips 112.

[0094] By setting the minimum spacing between adjacent matrix strips 112 to 0.01 mm to 0.3 mm, after the aerosol matrix sheet 111 is wound 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.

[0095] In some embodiments, the matrix strip 112 includes an aerosol forming agent, the weight of which ranges from 10% to 40% based on the dry weight of the matrix strip 112. The aerosol forming agent is used to form an aerosol.

[0096] The weight of the aerosol forming agent can be 10%, 12%, 15%, 16%, 17%, 18%, 20%, 22%, 23%, 25%, 26%, 27%, 28%, 30%, 33%, 35%, 36%, 37%, 38%, 40%, etc.

[0097] 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.

[0098] In this embodiment, based on the dry weight of the matrix strip 112, by setting the weight of the aerosol forming agent to a range of 10% to 40%, the matrix strip 112 can generate a certain amount of aerosol and have a certain amount of smoke, while reducing the water retention and moisture absorption capacity of the aerosol, thereby improving the situation where the high moisture content of the matrix strip 112 leads to a large loss of aroma during the drying process.

[0099] In some embodiments, the draw resistance RTD (full English name: Resistance To Draw, abbreviation: RTD, which refers to the resistance encountered by air when passing through the aerosol-generating article 1 during smoking) of the substrate 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 is 1 mmWG, 2 mmWG, 3 mmWG, 4 mmWG, 5 mmWG, 6 mmWG, 7 mmWG, 8 mmWG, 9 mmWG, 10 mmWG, and so on.

[0100] Exemplarily, the draw resistance of the substrate segment 11 and the aerosol-generating article 10 can be detected according to GB / T 22838.5-2024.

[0101] The draw resistance range of this embodiment is reasonable, which facilitates the smooth passage of external air through the substrate segment 11, and is also conducive to the more uniform and stable release of the aerosol, and is beneficial to the release burst and smooth transmission of the aerosol.

[0102] In some embodiments, along the extension direction of the substrate strip 112, the tensile strength range of the aerosol substrate sheet 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 substrate strips 112, the tensile strength range of the aerosol substrate sheet 111 is 50 N / m to 250 N / m, and the tensile strength in this direction can be understood as the transverse strength.

[0103] Tensile strength, that is, tensile strength, also known as tensile strength and breaking strength, represents the breaking force per unit area.

[0104] The tensile strength is the maximum load that causes the test piece of the aerosol substrate sheet 111 to break starting from the original cross-section.

[0105] The measurement standard can adopt a horizontal tensile strength measuring instrument, the width of the test sample is 15 mm, and the thickness can be modified according to the actual thickness of the sample.

[0106] The aerosol matrix sheet 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 the aerosol forming agent. If the longitudinal tensile strength exceeds 800 N / m, the aerosol matrix sheet 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 250 N / m, insufficient longitudinal strength can lead to breakage and detachment. Therefore, a longitudinal strength of 250 N / m to 800 N / m is suitable.

[0107] The tensile strength of the aerosol matrix sheet 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 slitting, not only will the sheets be separated at the slitting line, but cracks will also appear inside the aerosol matrix sheet 111, affecting the winding or gathering of the aerosol matrix sheet 111. If the tensile strength is higher than 250 N / m, it will be difficult to cut or maintain a regular shape during compression cutting. Preferably, the tensile strength of the aerosol matrix sheet 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 aerosol matrix sheet 111 in the arrangement direction of the multiple matrix strips is in the range of 100 N / m to 200 N / m.

[0108] In some embodiments, the drying weight loss of the aerosol matrix sheet 111 is in the range of 8% to 20%.

[0109] The drying weight loss rate of aerosol matrix tablet 111 refers to the weight loss ratio of aerosol matrix tablet 111 after drying process to constant weight at a set temperature. The weight loss is caused by the further volatilization of volatile substances in aerosol matrix tablet 111 after heat treatment exceeding the intensity of the drying process. Volatile substances include water, small molecule low flash point components in fragrance, etc.

[0110] The loss on drying 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".

[0111] During the production of matrix segment 11, the moisture content of aerosol matrix sheet 111 is dried to a certain level through a drying process to minimize the loss of aroma. For example, the temperature range for detecting drying weight loss rate using the oven drying method is between 101 and 105°C.

[0112] It should be noted that if the drying loss rate is higher than 20%, it may be due to insufficient drying intensity in the drying process of aerosol matrix tablet 111, resulting in excessively high moisture content in aerosol matrix tablet 111. Excessively high moisture content may lead to high aerosol temperature and low vapor volume. If the drying loss rate is lower than 8%, it may be due to excessive drying intensity in the drying process of aerosol matrix tablet 111, resulting in significant loss of both moisture and aroma in aerosol matrix tablet 111, which may affect the aroma reproduction and consistency during inhalation.

[0113] In this embodiment, by setting the drying weight loss rate of the aerosol matrix sheet 111 to be in the range of 8% to 20%, the drying intensity of the drying process of the aerosol matrix sheet 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 aerosol matrix sheet 111 to a certain extent, which is further beneficial to improving the inhalation consistency and inhalation taste of the matrix segment 11.

[0114] In some embodiments, the drying loss rate of the aerosol matrix sheet 111 is in the range of 12% to 16%. The drying loss rate of the aerosol matrix sheet 111 can be 12%, 12.5%, 13%, 13.5%, 14%, 14.5%, 15%, 15.5%, 16%, etc. A drying loss rate within this range can further reduce the loss of moisture and aroma in the aerosol matrix sheet 111 during the drying process, further improve the problem of high aerosol temperature and low smoke volume caused by excessive moisture content in the aerosol matrix sheet 111, and thus further improve the inhalation consistency and inhalation taste of the matrix segment 11.

[0115] In some embodiments, the hardness of the matrix strip 112 (which can also be understood as the hardness of the aerosol matrix sheet 111) is 300N to 500N (Newtons). For example, it can be 300N, 320N, 340N, 360N, 380N, 400N, 430N, 450N, 500N, etc.

[0116] Hardness can be tested according to the methods specified in YC / T 152-2001 "Cigarette Hardness".

[0117] 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.

[0118] In some embodiments, the salt content of the aerosol matrix sheet 111 is 0.2% to 2%, and the pH value (Potential of Hydrogen, i.e., hydrogen ion activity) of the aerosol matrix sheet 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.

[0119] 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".

[0120] If the pH value is below 5.0, it approaches the isoelectric point of the protein, reducing the protein's cross-linking properties and causing a decrease in the elasticity of the aerosol matrix sheet 111. If the pH value is above 8.0, the protein gels more strongly under alkaline conditions, resulting in excessive elasticity of the aerosol matrix sheet 111. Therefore, a pH value in the range of 5.0 to 8.0 is suitable.

[0121] It should be noted that salt content refers to the content of salt substances, such as soluble metallic inorganic salts.

[0122] Soluble metallic inorganic salts can be normal salts, acid salts, basic salts, etc. Of course, they can also be other types of salts.

[0123] 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).

[0124] 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).

[0125] Basic salts are products of partial neutralization by a base, containing ionizable OH- ions, while retaining hydroxyl groups in the cation.

[0126] In this embodiment, salts, especially inorganic metal salts, are beneficial for improving the thermal conductivity of the matrix strip.

[0127] In embodiments containing acidic and / or basic salts, it is also beneficial to adjust the pH value of the aerosol matrix sheet 111.

[0128] In some embodiments, the moisture content of the aerosol matrix sheet 111 is in the range of 4% to 10%. The moisture content of the aerosol matrix sheet 111 can be 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%, etc.

[0129] The moisture content of aerosol matrix tablet 111 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".

[0130] Moisture has a high specific heat, 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 aerosol matrix tablet 111 is too high, it will affect the heat absorption and temperature rise of other components of the aerosol matrix tablet 111 (matrix segment 11), resulting in a small amount of vapor in the first few puffs. After the aerosol is released, it liquefies rapidly, releasing more heat, leading to excessively high aerosol temperature and reduced aerosol volume, which can cause burns to the smoker. If the moisture content of the aerosol matrix tablet 111 is too low, the drying intensity of the aerosol matrix tablet 111 during processing is greater, resulting in a lower drying weight loss rate and greater aroma loss.

[0131] The heating element heats the substrate segment 11, causing it to release aerosols. The user inhales the aerosol in batches; that is, the user inhales one breath of aerosol, stops, and then inhales the next breath, thus inhaling intermittently. The initial inhalation period refers to the period when the substrate segment 11 is initially used, with the first few inhalations corresponding to this initial period, such as inhalations 1-5. The later inhalation period refers to the period when the substrate segment 11 is close to complete aerosol release, with the last few inhalations corresponding to this later period, such as the last 1-5 inhalations. The initial and later inhalation periods refer to the early and late stages of the substrate segment 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 that allow for immediate inhalation and stopping, inhalation can be arbitrary and can occur at any time, not strictly encompassing the stages described above.

[0132] By setting the moisture content of the aerosol matrix tablet 111 to a range of 4% to 10% and the drying weight loss rate of the aerosol matrix tablet 111 to a range of 8% to 20%, the drying weight loss rate and moisture content of the aerosol matrix tablet 111 are designed in a coordinated manner. This approach can take into account the processing and manufacturing process, aroma preservation, excessive aerosol temperature, and aerosol volume. In other words, it facilitates processing and manufacturing while improving the consistency and taste of the matrix segment 11.

[0133] Preferably, the moisture content of the aerosol matrix sheet 111 is in the range of 6% to 8%.

[0134] In some embodiments, the density of the aerosol matrix sheet 111 is 1.05 g / cm³. 3 Up to 1.40 g / cm 3 The density of aerosol matrix sheet 111 can be 1.05 g / cm³. 3 1.06 g / cm 3 1.08g / cm 3 1.10 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 1.40g / cm 3 wait.

[0135] The density of aerosol matrix sheet 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".

[0136] It can be understood that the density of aerosol matrix sheet 111 is affected by the extrusion and calendering effects; if the density is greater than 1.40 g / cm³... 3 This indicates that the aerosol matrix sheet 111 was processed too densely, which is not conducive to the evaporation of moisture during processing. Drying requires a longer time and is prone to causing 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... 3This indicates that the aerosol matrix sheet 111 was processed too loosely, and the moisture and aroma components were easily volatilized, resulting in rapid weight loss in a short period of time, which is not conducive to the drying process.

[0137] Furthermore, if the density of the aerosol matrix sheet 111 is less than 1.05 g / cm³... 3 The matrix segment 11, formed by the winding or agglomeration of the aerosol matrix sheet 111, has weak heat storage capacity. 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, causing 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).

[0138] Therefore, by setting the density of the aerosol matrix sheet 111 to 1.05 g / cm³, 3 Up to 1.40 g / cm 3 The optimal moisture content range allows the aerosol matrix tablet 111 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 of the matrix segment 11 and the density of the aerosol matrix tablet 111, 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 localized overheating and insufficient extraction, thus enhancing aerosol extraction efficiency and draw flavor.

[0139] Preferably, the density of the aerosol matrix sheet 111 is 1.10 g / cm³. 3 Up to 1.25 g / cm 3 The range.

[0140] In some embodiments, the maximum thickness of the aerosol matrix sheet 111 ranges from 0.7 mm to 1.2 mm. The maximum thickness of the aerosol matrix sheet 111 can be 0.7 mm, 0.8 mm, 0.9 mm, 1 mm, 1.1 mm, 1.2 mm, etc. If the aerosol matrix sheet 111 is too thin (i.e., the thickness of the aerosol matrix sheet 111 is small), it may have poor strength, be easily broken, and experience rapid aroma loss, which is detrimental to consistency. If the aerosol matrix sheet 111 is too thick (i.e., the thickness of the aerosol matrix sheet 111 is large), a longer drying time or higher temperature is required, which may also lead to aroma loss.

[0141] By setting the maximum thickness of the aerosol matrix sheet 111 to within the range of 0.7 mm to 1.2 mm, the aerosol matrix sheet 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 111 is wound or aggregated to form matrix segments 11, it helps to increase the filling volume of the matrix segments 11 and ensure suitable air passages 114, improving suction resistance and thus enhancing the suction experience of the aerosol-generated product 10.

[0142] Preferably, the maximum thickness of the aerosol matrix sheet 111 is in the range of 0.9 mm to 1.1 mm.

[0143] In some embodiments, the maximum dimension of the aerosol matrix sheet 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 aerosol matrix sheet 111 into a columnar structure of a suitable size.

[0144] In some embodiments, the mass of a single matrix segment 11 aerosol matrix tablet 111 is in the range of 200 mg to 500 mg. The mass of a single matrix segment 11 aerosol matrix tablet 111 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.

[0145] Understandably, the mass of a single aerosol matrix sheet 111 of matrix segment 11 is affected by the density and actual volume of the aerosol matrix sheet 111. Given a fixed volume of the aerosol matrix sheet 111, if the mass of a single aerosol matrix sheet 111 of matrix segment 11 is less than 200mg, the total smoke-generating agent and aroma loading of matrix segment 11 is relatively small, and the corresponding density of the aerosol matrix sheet 111 is relatively small. Moisture and aroma components are easily volatilized, resulting in rapid weight loss in a short time, which is detrimental to the drying process. If the mass of a single aerosol matrix sheet 111 of matrix segment 11 is greater than 500mg, the corresponding density of the aerosol matrix sheet 111 is relatively large, which is not conducive to the evaporation of moisture during processing. Drying requires a longer time, easily leading to the loss of low-flash-point substances in the aroma, resulting in greater absorption resistance, which is detrimental to the activation of the smoke-generating agent and aroma, thus affecting the smoke volume and smoke temperature.

[0146] Preferably, the mass of the aerosol matrix sheet 111 of a single matrix segment 11 is in the range of 300 mg to 400 mg.

[0147] In some embodiments, the protein source content in the aerosol matrix sheet 111 is 5%-15% by weight. That is, the raw material of the aerosol matrix sheet 111 includes a protein source. Exemplarily, the protein source includes one or more of rice protein, wheat protein, soy protein, and pea protein.

[0148] 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 taste of the aerosol matrix sheet 111.

[0149] In some embodiments, the thermal conductivity of the aerosol matrix sheet 111 is in the range of 2.5 W / (m·K) to 4.5 W / (m·K). Wherein W represents watts and m·K represents Kelvin per meter.

[0150] The thermal conductivity of the aerosol matrix sheet 111 can be 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.

[0151] The thermal conductivity of aerosol matrix sheet 111 can be determined according to the method specified in GB / T 22588-2008 "Measuring thermal diffusivity or thermal conductivity by flash method".

[0152] The thermal conductivity of the aerosol matrix sheet 111 affects its heat transfer rate. During drying, assuming the aerosol matrix sheet 111 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 aerosol matrix sheet 111 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 conduction rate is too fast, and heat from the surface layer is rapidly conducted to the entire aerosol matrix sheet 111. 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.

[0153] Preferably, the thermal conductivity of the aerosol matrix sheet 111 is in the range of 3 W / (m·K) to 3.8 W / (m·K).

[0154] In some embodiments, the matrix strip 112 is constructed by pressing and cutting an aerosol matrix sheet 111, and a groove 115 is formed between adjacent matrix strips 112, with a portion of the bottom wall of the groove 115 forming a connecting region 113.

[0155] For example, such as Figure 6 The aerosol matrix sheet 111 can be cut or pressed by a mold to form an uneven surface on the surface of the aerosol matrix sheet 111. Here, the protruding area is the matrix strip 112 and the recessed area is the groove 115.

[0156] In some embodiments, please refer to Figures 4 to 6 The cutting direction of the aerosol matrix sheet 111 includes the second direction.

[0157] here, Figure 5 The continuous or dashed lines inside the aerosol matrix sheet 111 represent the cutting lines of the aerosol matrix sheet 111, and the breaks in the dashed lines represent the connecting areas 113.

[0158] Here, the aerosol matrix sheet 111 can be cut only along the second direction, or it can be cut along other directions in addition to the second direction.

[0159] In some embodiments, please refer to Figure 4 The first direction is parallel to the second direction.

[0160] In other words, the extension direction of the matrix strip 112 is parallel to the cutting direction of the aerosol matrix sheet 111.

[0161] Here, the extension direction of the matrix strip 112 and the cutting direction of the aerosol matrix sheet 111 can be approximately parallel or completely parallel.

[0162] In some embodiments, please refer to Figure 5 The first direction intersects with the second direction.

[0163] Here, the extension direction of the matrix strip 112 intersects the cutting direction of the aerosol matrix sheet 111. That is, the extension direction of the matrix strip 112 is not parallel to the cutting direction of the aerosol matrix sheet 111. For example, the extension direction of the matrix strip 112 is perpendicular to the cutting direction of the aerosol matrix sheet 111.

[0164] Of course, in other embodiments, the aerosol matrix sheet 111 includes multiple cutting directions. For example, the aerosol matrix sheet 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.

[0165] In some embodiments, the extension trajectory of the pressure groove 115 is a straight line or a curve.

[0166] In other words, the cutting direction of the aerosol matrix sheet 111 can be curved, such as S-shaped, spiral, or straight.

[0167] In some embodiments, the matrix strip 112 is straight or at least partially curved.

[0168] 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.

[0169] 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.

[0170] 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.

[0171] Here, the cross-sectional shape of the matrix strips 112 can be the same or different.

[0172] In other embodiments, the cross-sectional shape of the matrix strip 112 may also be irregular.

[0173] Please see Figure 1 The embodiments of this application also provide a method for preparing a matrix segment 11, the method comprising the following steps.

[0174] Step S101: Prepare matrix slurry.

[0175] Step S102: The matrix slurry is extruded to obtain a primary sheet matrix structure of the first thickness.

[0176] Step S103: Press the primary sheet matrix structure into an aerosol matrix sheet 111 of a second thickness, wherein the first thickness is greater than the second thickness.

[0177] Step S104: Cut the aerosol matrix sheet 111 into multiple unbroken matrix strips.

[0178] Step S105: The aerosol matrix sheet 111 after compression cutting is wound or gathered.

[0179] In some embodiments, the raw materials for the matrix slurry include protein sources, fiber sources, adhesives, soluble inorganic salts, inorganic fillers, etc.

[0180] For example, the protein source includes one or more of rice protein, wheat protein, soy protein, and pea protein.

[0181] 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.

[0182] The particle size of the protein source and fiber source is 80 mesh to 120 mesh.

[0183] 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.

[0184] 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.

[0185] For example, the inorganic filler includes one or more of light calcium carbonate, heavy calcium carbonate, and alumina.

[0186] The particle size of the inorganic filler is 160-200 mesh.

[0187] 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.

[0188] 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.

[0189] 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.

[0190] 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.

[0191] In step S102, the matrix slurry can be extruded using a screw extruder to obtain a primary sheet-like matrix structure of the first thickness. It is understood that either a single-screw extruder or a twin-screw extruder can be used for extrusion.

[0192] For example, the primary aerosol matrix sheet 111 has a width of 100 mm to 200 mm, a thickness of 2.0 mm to 5.0 mm, and a length of 10 mm to 30 mm.

[0193] 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.

[0194] The primary sheet matrix structure obtained in step S102 is passed through 3 to 5 rollers, and finally the sheet is rolled into an aerosol matrix sheet 111 with a thickness of 0.8 to 1.2 mm.

[0195] For example, the primary sheet matrix 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.

[0196] For example, the primary aerosol matrix sheet 111 structure is rolled into two thin sheets with a thickness of 3.0 to 4.5 mm by two pairs of rollers. The two thin 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 rollers.

[0197] In step S104, please refer to Figures 4 to 6 The aerosol matrix sheet 111 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.

[0198] Here, the connecting regions 113 formed between the matrix strips 112 can be the same or different.

[0199] It should be noted that the specific location of the connecting area 113 is not restricted here.

[0200] 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.

[0201] Adjacent matrix strips 112 can be connected together via connecting areas 113, making the aerosol matrix sheet 111 a one-piece structure. This improves the integrity and overall strength of the aerosol matrix sheet 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 reduces the likelihood of matrix strips 112 breaking and falling off, which is beneficial for increasing vapor production, draw stability, and product yield. Furthermore, the matrix strip 112 is a homogeneous system, which facilitates the continuous and uniform generation of aerosols, thus improving the draw experience.

[0202] For example, a circular-edged cutter with a 1mm gap can be used to cut and form a single matrix strip 112 with a diameter of 0.7mm to 1.2mm, with adjacent matrix strips 112 arranged side by side but not completely cut off.

[0203] For example, in step S105, the aerosol matrix sheet 111 is wound to form a cylinder with a diameter of 5.3mm-5.35mm or 7.1mm-7.15mm.

[0204] For example, the aerosol matrix sheet 111 can be directly wound to form a matrix segment 11 of 12mm-15mm; or the aerosol matrix sheet 111 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.

[0205] 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.

[0206] After step S103, powder can also be coated on the surface of the aerosol matrix sheet 111 of the second thickness.

[0207] For example, the powder is a metal powder, such as alumina powder.

[0208] After step S104, the aerosol matrix sheet 111 obtained in step S104 can be dried at 90-110°C for 3-7 minutes.

[0209] The preparation method of this application embodiment forms an aerosol matrix sheet 111 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 powdered material is 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 screws, the strong extrusion pressure of the twin screws can quickly form a continuous sheet with a certain tensile strength from the powdered 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.

[0210] 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.

[0211] The aerosol matrix sheet 111 prepared by the preparation method of the present 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%.

[0212] The following detailed description of several specific embodiments of this disclosure, in conjunction with the accompanying drawings and specific examples, will be provided in further detail.

[0213] Example 1:

[0214] 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, the screw speed is 50 rpm, and the segmented heating modules have temperatures ranging from 4°C to 4°C from front to back. The material is processed at 0℃, 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 is evenly 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 111. The obtained aerosol matrix sheet 111 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.

[0215] Example 2:

[0216] 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. 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 50 rpm, and the segmented heating modules have temperatures ranging from 40°C to 40°C from front to back. The aerosol matrix sheet is heated at ℃, 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 four rollers. A layer of alumina powder is evenly 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 100℃ for 4.5min to obtain an aerosol matrix sheet 111. The obtained aerosol matrix sheet 111 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.

[0217] Example 3:

[0218] 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 exhaust module. The extrusion pressure is 1.7 MPa, the screw speed is 50 rpm, and the segmented heating modules have progressively lower temperatures from front to back. The aerosol matrix sheet is prepared at temperatures of 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. It is then rolled into a 1.0mm thick sheet using five rollers. A layer of alumina powder is uniformly coated onto the surface of the sheet. The resulting sheet is cut with a round-edged cutter with a 1.1mm gap to form single matrix strips 112 with a diameter of 1.1mm. Adjacent matrix strips 112 are arranged side-by-side but not completely cut. This sheet is dried at 90℃ for 7 minutes to obtain an aerosol matrix sheet 111. The aerosol matrix sheet 111 is then divided into small strips with a transverse width of 30mm, which are rolled into cylinders with a diameter of 7.15mm using a rolling device.

[0219] Example 4:

[0220] 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 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 by five rollers. A layer of alumina powder was evenly coated on the surface of the sheet. The resulting sheet was 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 dried at 98℃ for 6 minutes to obtain an aerosol matrix sheet 111. The aerosol matrix sheet 111 was divided into small strips with a transverse width of 29mm and rolled into a cylindrical shape with a diameter of 7.15mm by a rolling device.

[0221] Example 5

[0222] 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 are heated from front to back. The temperature is 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 by four rollers. A layer of alumina powder is evenly 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 111. The obtained aerosol matrix sheet 111 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 by a rolling device.

[0223] Comparative Example 1:

[0224] 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. (Segmented feeding...) The temperatures of the heating module from front to back are 40℃, 60℃, 70℃, 80℃, 90℃, 120℃, 150℃, and 110℃ respectively. The output width is 100mm and the thickness is 1.2mm. A layer of alumina powder 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. This sheet is dried at 100℃ for 4 minutes to obtain an aerosol matrix sheet 111. The obtained aerosol matrix sheet 111 is divided into small strips with a transverse width of 27mm, which are rolled into a cylindrical shape with a diameter of 7.10mm by a rolling device.

[0225] Comparative Example 2:

[0226] 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, 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 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 calender using a 5-stage roller press. A thin sheet with a thickness of 0.8 mm is formed, and a layer of alumina powder 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 111. The obtained aerosol matrix sheet 111 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.

[0227] The aerosol matrix sheet 111 and matrix segment 11 obtained above were analyzed, and the results are as follows:

[0228]

[0229] 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).

[0230] The main factors affecting the drying weight loss rate of aerosol matrix sheet 111 are: ① the adsorption effect of components such as protein and adhesive on moisture and fragrance components; ② the influence of extrusion and calendering processes on the density of aerosol matrix sheet 111; ③ the drying intensity in the drying process, mainly including drying temperature and time; ④ the thickness of aerosol matrix sheet 111; ⑤ the thermal conductivity of aerosol matrix sheet 111; and ⑥ the content and flash point of volatile components in the fragrance.

[0231] 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 more compact aerosol matrix sheet 111, stronger inter-component melt cross-linking, higher density, and 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 111 dries rapidly, forming a hard crust, which is detrimental to the migration of internal moisture to the surface. The thicker the aerosol matrix sheet 111, the longer the drying time and the greater the aroma loss. The thermal conductivity of the aerosol matrix sheet 111 affects the local or overall heat transfer performance of the aerosol matrix sheet 111. If the thermal conductivity is low, the matrix section 11 is prone to local overheating. If the thermal conductivity is high, the heat needs to be heated to the entire matrix section 11 in a short time. The thermal conductivity of the matrix section 11 is greatly affected by the content of the metal inorganic salts therein.

[0232] 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 sheet 111. 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 sheet 111 were both higher. 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 puffing and pore-forming effect on the surface of the aerosol matrix sheet 111. Therefore, its volatile component content is lower than that of the calendering process, resulting in greater porosity.

[0233] 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 111 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 large. From the perspective of the smoking 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 smoking effect, and the amount of smoke 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 medium's smoking effect, the amount of smoke is also small, the aroma loss is large, and the aroma reproduction and consistency are also poor.

[0234] In the description of this application, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the embodiments of this application. In this application, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Furthermore, without contradiction, those skilled in the art can combine different embodiments or examples described in this application, as well as features of different embodiments or examples.

[0235] The above description is merely a preferred embodiment of this application and is not intended to limit the application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application.

Claims

1. A matrix segment, characterized in that, Used to generate aerosols by heating elements; The matrix segment is constructed by winding or aggregating aerosol matrix sheets, wherein the aerosol matrix sheets include multiple parallel and spaced matrix strips and connecting regions sandwiched between adjacent matrix strips; The porosity of the matrix segment is 10% to 40%, and the elasticity of the matrix strip or the aerosol matrix sheet is 0.2 to 0.

5.

2. The matrix segment according to claim 1, characterized in that, The elasticity of the matrix strip or the aerosol matrix sheet is 0.3 to 0.

4.

3. The matrix segment according to claim 1, characterized in that, The absorption resistance of the matrix segment is greater than 0 and less than or equal to 10 mm water column.

4. The matrix segment according to claim 1, characterized in that, Along the extension direction of the matrix strips, the tensile strength of the aerosol matrix sheet ranges from 250 N / m to 800 N / m; along the arrangement direction of the plurality of matrix strips, the tensile strength of the aerosol matrix sheet ranges from 50 N / m to 250 N / m.

5. The matrix segment according to claim 1, characterized in that, Along the extension direction of the matrix strips, the tensile strength of the aerosol matrix sheet ranges from 350 N / m to 600 N / m, and along the arrangement direction of the plurality of matrix strips, the tensile strength of the aerosol matrix sheet ranges from 100 N / m to 200 N / m.

6. The matrix segment according to claim 1, characterized in that, The drying weight loss of the aerosol matrix sheet is in the range of 8% to 20%, and / or the hardness of the matrix strip is 300N to 500N.

7. The matrix segment according to claim 1, characterized in that, The salt content of the aerosol matrix sheet is 0.2% to 2%, and the pH value of the aerosol matrix sheet is 5 to 8.

8. The matrix segment according to claim 1, characterized in that, The aerosol matrix sheet has a moisture content of 4% to 10%; and / or, the density of the aerosol matrix sheet is 1.05 g / cm³. 3 ~1.40g / cm 3 .

9. The matrix segment according to claim 1, characterized in that, The porosity of the matrix strip or aerosol matrix sheet is 5% to 30%; and / or, the plurality of matrix strips of the aerosol matrix sheet 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.

10. The matrix segment according to claim 1, characterized in that, The aerosol matrix sheet has a maximum dimension of 0.7 mm to 1.2 mm in the thickness direction; and / or, a plurality of matrix strips of the aerosol matrix sheet are arranged along a first direction, and the maximum dimension of the aerosol matrix sheet in the first direction is 18 mm to 36 mm.

11. The matrix segment according to claim 1, characterized in that, The protein source content in the aerosol matrix sheet is 5% to 15% by weight.

12. An aerosol-generating product, characterized in that, Includes the matrix segment as described in any one of claims 1-11.

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