Matrix segment, aerosol-generating article, and method of making a matrix segment

Abstract

The embodiment of the present application provides a substrate section, an aerosol generating article and a preparation method of the substrate section. The substrate section is configured to be formed by winding or gathering an aerosol substrate sheet. The aerosol substrate sheet comprises a sheet-shaped substrate, and the sheet-shaped substrate is of an integral structure. The sheet-shaped substrate comprises a plurality of substrate strips arranged in parallel and at intervals, and at least one connecting area is formed between adjacent substrate strips, the connecting area connects the adjacent substrate strips, and the aerosol substrate sheet can be heated to generate aerosol. The specific heat capacity of the substrate strip is in the range of 2.0 J / (g*K) to 4.0 J / (g*K), and the moisture content of the substrate strip is in the range of 4% to 10%. The volatilization rate of volatile components (mainly aroma components) of the sheet-shaped substrate can be adapted to the generation rate of aerosol, the consistency of aroma and smoke amount before and after smoking can be improved, and the problems of increased release amount of burnt taste substances, structure collapse and carbonization of the substrate section caused by local overheating can be improved.

Description

[0001] Cross-reference to related applications

[0002] This disclosure 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 technology, and in particular to a matrix segment, an aerosol-generating product, and a method for preparing the matrix segment. 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, poor suction consistency is one of the indicators of system performance. Therefore, improving suction consistency is one of the research directions in the industry. Summary of the Invention

[0006] To address the aforementioned technical problems, embodiments of this application provide a matrix segment with improved suction consistency, an aerosol-generating product, and a method for preparing the matrix segment.

[0007] The embodiments of this application are implemented through the following technical solutions.

[0008] A first aspect of this application provides a matrix segment, the matrix segment being constructed by winding or aggregating an aerosol matrix sheet.

[0009] The aerosol matrix sheet comprises a sheet-like matrix, which is a one-piece structure.

[0010] The sheet-like matrix comprises a plurality of parallel and spaced matrix strips, with at least one connecting region formed between adjacent matrix strips, the connecting region connecting adjacent matrix strips, and the aerosol matrix sheet can be heated to generate aerosol;

[0011] The moisture content of the matrix strip is in the range of 4% to 10%, and the specific heat capacity of the matrix strip is in the range of 2.0 J / (g·K) to 4.0 J / (g·K).

[0012] In one embodiment, the specific heat capacity of the matrix strip is in the range of 2.6 J / (g·K) to 3.2 J / (g·K).

[0013] In one embodiment, the drying weight loss of the sheet-like matrix is ​​in the range of 8% to 20%.

[0014] In one embodiment, the matrix strip includes an aerosol forming agent, the weight of which is in the range of 10% to 40% based on the dry weight of the matrix strip, and the density of the matrix strip is 1.05 g / cm³. 3 Up to 1.40 g / cm 3 The range.

[0015] In one embodiment, the weight of the sheet-like matrix in a single matrix segment is in the range of 200 mg to 500 mg.

[0016] In one embodiment, the porosity of the sheet-like matrix is ​​in the range of 20% to 50%.

[0017] In one embodiment, the maximum thickness of the sheet-like substrate is in the range of 0.7 mm to 1.2 mm, and the maximum thickness of the connecting region is in the range of 0.02 mm to 0.5 mm.

[0018] In one embodiment, the thermal conductivity of the substrate strip is in the range of 2.5 W / (m·K) to 4.5 W / (m·K).

[0019] In one embodiment, the protein source content of the aerosol matrix sheet is in the range of 5% to 15% by weight.

[0020] A second aspect of this application provides an aerosol-generating article comprising the matrix segment described above.

[0021] A third aspect of this application provides a method for preparing a matrix segment, comprising:

[0022] Preparation of matrix slurry;

[0023] The matrix slurry is extruded to obtain a primary sheet matrix structure of the first thickness;

[0024] The primary sheet-like matrix structure is pressed into an aerosol matrix sheet of a second thickness, wherein the first thickness is greater than the second thickness;

[0025] The aerosol matrix sheet was cut into multiple unbroken matrix strips;

[0026] The aerosol matrix sheet after compression cutting is wound or gathered.

[0027] The matrix segment structure provided in this application embodiment is formed by winding or aggregating aerosol matrix sheets. The aerosol matrix sheet comprises multiple parallel and spaced matrix strips. This results in high drying efficiency of the sheet matrix and high consistency in moisture content and weight loss after drying, which is beneficial for improving the draw 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 sheet matrix is ​​designed as an integral structure, which improves the integrity and overall strength of the sheet matrix. This helps reduce displacement and matrix strip breakage caused by vibration during transportation, storage, or use, further improving the stability of the draw resistance. Simultaneously, it also improves the situation 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 vaping experience. Moreover, by setting the moisture content of the matrix strip to a range of 4% to 10% and the specific heat capacity to a range of 2.0 J / (g·K) to 4.0 J / (g·K), the specific heat capacity within this range allows for an appropriate temperature rise in the sheet-like matrix. This ensures that the evaporation rate of the volatile components (mainly aroma components) of the sheet-like matrix matches the aerosol generation rate, improving the consistency of aroma and smoke volume before and after vaping. Additionally, it allows for an appropriate rate of heat transfer between matrix segments, reducing the temperature difference between areas near and away from the heat source. This mitigates problems such as increased release of burnt-tasting substances, structural collapse, and carbonization caused by localized overheating of the matrix segments, as well as insufficient extraction (reduced release of active ingredients) and low initial smoke volume caused by localized low temperatures. Attached Figure Description

[0028] Figure 1 This is a flowchart illustrating the preparation method of the matrix segment in some embodiments of this application;

[0029] Figure 2 This is a schematic diagram of the structure of an aerosol generation system according to some embodiments of this application;

[0030] Figure 3 This is a schematic diagram of the structure of the aerosol-generating article according to the first embodiment of this application;

[0031] Figure 4 This is a schematic diagram of the sheet-like matrix structure according to the first embodiment of this application;

[0032] Figure 5 This is a schematic diagram of the sheet-like matrix structure according to the second embodiment of this application;

[0033] Figure 6 This is a schematic diagram of the sheet-like matrix according to the third embodiment of this application;

[0034] Figure 7 This is a schematic diagram of the structure of the matrix segment in some embodiments of this application.

[0035] Explanation of reference numerals in the attached figures

[0036] 10. Aerosol generating product; 11. Matrix section; 111. Sheet matrix; 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

[0037] 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.

[0038] 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.

[0039] 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.

[0040] 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.

[0041] 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.

[0042] 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.

[0043] 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.

[0044] The present application will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0045] Please see Figures 2 to 7 This application provides an aerosol generating article 10, which includes a matrix segment 11 according to any embodiment of this application.

[0046] 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.

[0047] The extension direction of the matrix strip 112 includes a first direction, that is, the matrix segment 11 extends along the first direction. For example, the first direction is... Figures 2 to 5 The direction indicated by L in the middle.

[0048] 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.

[0049] For example, the aerosol generating article 10 also includes a functional section.

[0050] The functional segment is located at one end of the matrix segment 11 along the first direction.

[0051] For example, please refer to Figure 3 The functional section includes the filter section 12.

[0052] The aerosol generated by the heated aerosol generating product 10 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 the heated aerosol generating product 10 is filtered through the filter section 12 before being drawn in by the user.

[0053] 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.

[0054] In embodiments where the functional section includes both the filtration section 12 and the cooling section 13, the cooling section 13 is disposed between the matrix section 11 and the filtration section 12.

[0055] The aerosol generated by the heated aerosol generating product 10 can first flow through the cooling section 13 for cooling. After cooling, the aerosol then flows through the filtration section 12, which can filter out large particles and unwanted impurities in the aerosol. In other words, the aerosol generated by the heated 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.

[0056] For example, please refer to Figure 3 The aerosol-generating product 10 also includes an outer coating layer 15.

[0057] The outer wrapping layer 15 wraps around the outer periphery of the functional segment and the matrix segment 11.

[0058] 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.

[0059] 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.

[0060] 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.

[0061] It should be noted that the aerosol generating product 10 relies on the matrix section 11 to generate aerosols, while the functional section generally does not generate aerosols. However, some aerosol generating products 10 may have flavoring substances such as popping beads added to the functional section.

[0062] 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, PBAT, etc.

[0063] The outer wrapping layer 15 can be in the form of a hollow tube. 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 splicing paper. The matrix segment 11 and the functional segment are combined into an integral structure through the splicing paper.

[0064] For example, please refer to Figure 3 The functional section includes the front plug section 14.

[0065] 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.

[0066] 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.

[0067] Please see Figure 3The 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.

[0068] 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.

[0069] 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.

[0070] Please see Figures 4 to 7 This application provides a matrix segment 11, which is constructed by winding or aggregating an aerosol matrix sheet.

[0071] Exemplary, in some embodiments, the matrix segment 11 is configured as a wound structure formed by winding an aerosol matrix sheet, for example, a rod-shaped structure.

[0072] In other embodiments, please refer to Figure 7 The matrix segment 11 is constructed as a clustered structure formed by agglomerated aerosol matrix sheets. The clustering can be achieved by means of folding, bending, compression, etc.

[0073] here, Figure 7 The matrix segment 11 shown can be either a wound structure formed by winding aerosol matrix sheets or a clustered structure formed by agglomerating aerosol matrix sheets.

[0074] It should be noted that the aerosol matrix sheet can be rolled or gathered to form a matrix segment 11, or it can be rolled to form a rolled structure and then cut to form multiple matrix segments 11, or it can be gathered to form a gathered structure and then cut to form multiple matrix segments 11.

[0075] In the embodiments of this application, "multiple" refers to two or more items.

[0076] Please see Figures 4 to 7The aerosol matrix sheet includes a sheet-like matrix 111, which is a monolithic structure. The sheet-like matrix 111 includes multiple parallel and spaced-apart matrix strips 112, with at least one connecting region 113 formed between adjacent matrix strips 112. The connecting region 113 connects adjacent matrix strips 112. The aerosol matrix sheet can be heated to generate aerosols. The specific heat capacity of the sheet-like matrix 111 is in the range of 2.0 J / (g·K) to 4.0 J / (g·K).

[0077] In other words, the sheet-like matrix 111 is composed of multiple matrix strips 112, which are connected by a small amount of filamentous fibers and adhesive (connecting area 113).

[0078] For example, the diameter of the substrate strip 112 is 0.7 mm to 1.2 mm.

[0079] Here, adjacent matrix strips 112 can be connected by a connection area 113 made of plant fibers, non-woven fabric or other components, which helps to improve the air permeability of the aerosol matrix sheet while connecting adjacent matrix strips 112, and improve the reliability and integrity between adjacent matrix strips 112.

[0080] For example, the connecting region 113 contains plant fibers.

[0081] 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.

[0082] Here, the connecting regions 113 formed between the matrix strips 112 can be the same or different.

[0083] It should be noted that the specific location of the connecting area 113 is not restricted here.

[0084] 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 substrate 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 not uniformly distributed. For example, the sheet substrate 111 is cut into multiple substrate strips 112 by using a cutter or a die, but at least some of the adjacent substrate strips 112 are not cut, that is, there will still be connecting regions 113 connecting the adjacent substrate strips 112.

[0085] In some embodiments, a connecting region 113 is included between adjacent matrix strips 112, and the connecting region 113 completely covers the area between adjacent matrix strips 112. That is, adjacent matrix strips 112 are connected by a connecting region 113, and there is no disconnection between adjacent matrix strips 112. For example, the matrix strip 112 is formed by a portion of the surface of an aerosol matrix sheet protruding outward, with depressions formed between adjacent protrusions, and at least a portion of the depressions constituting the connecting region 113. The sheet matrix 111 is pressed using a mold or roller, so that at least one side of the sheet matrix 111 forms multiple protruding strips, i.e., matrix strips 112, such as... 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.

[0086] 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 is smaller than the maximum dimension of the matrix strips 112 in the thickness direction of the aerosol matrix sheet; that is, the maximum thickness of the connecting region 113 is smaller than the maximum thickness of the sheet matrix 111. For example, the thickness of the bottom wall of the groove 115 is smaller than the maximum dimension of the matrix strips 112 in the same direction as the bottom wall thickness.

[0087] 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.

[0088] In related technologies, aerosol matrix segments are obtained by bundling together multiple independent matrix strips. However, the integrity of multiple independent matrix strips is poor, the structural strength is low, and it is not conducive to assembly and manufacturing. During packaging, handling, transportation, or suction, the matrix strips may break and fall off.

[0089] In this embodiment of the application, adjacent matrix strips 112 can be connected together through the connecting area 113, which is beneficial to improve the integrity and overall strength of the sheet matrix 111, can improve the situation of matrix strips 112 breaking and falling off, and is beneficial to improve smoke volume, suction stability and yield.

[0090] In related technologies, the matrix units of the aerosol matrix segment are mainly in the form of flakes, filaments, and granules. In related technologies where the matrix units are granular, the filling process for filling the matrix units results in unstable suction resistance. Furthermore, the vibration and other effects during transportation and storage of granular matrix units can cause the granular matrix units in local areas of the aerosol matrix segment to become increasingly compact, leading to greater suction resistance and a poor suction experience.

[0091] The matrix segment 11 provided in this application embodiment is formed by winding or agglomerating an aerosol matrix sheet. The sheet-like matrix 111 of the aerosol matrix sheet includes multiple parallel and spaced matrix strips 112. Therefore, the sheet-like matrix 111 has high drying efficiency and high consistency in dryness and weight loss after drying, which is beneficial to improving the suction consistency and suction taste of the matrix segment 11. After the aerosol matrix sheet is wound 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 suction resistance of the matrix segment 11 can also be adjusted by adjusting the size of the matrix strips 112, etc. Adjustments are made; furthermore, by forming at least one connecting region 113 between adjacent matrix strips 112, that is, by connecting adjacent matrix strips 112 together through the connecting region 113, the sheet matrix 111 is made into an integral structure, which helps to improve the integrity and overall strength of the sheet matrix 111. This helps to reduce displacement and breakage caused by vibration, bending, pressure and other factors during transportation, storage or use, thereby further improving the stability of the draw resistance. At the same time, it can also improve the situation of matrix strip 112 breaking and falling off, which is beneficial to improving the amount of smoke, the draw stability and the yield rate. In addition, the matrix strip 112 is a homogeneous system, which is conducive to the continuous and uniform generation of aerosol, thereby improving the draw experience.

[0092] For example, the specific heat capacity of the sheet matrix 111 can be determined according to the method specified in GB / T 19466.4-2016 "Differential Scanning Calorimetry (DSC) for Plastics - Part 4: Determination of Specific Heat Capacity".

[0093] It should be noted that specific heat capacity is a physical quantity describing a substance's ability to absorb or release heat. Specific heat capacity refers to the amount of heat absorbed or released by a unit mass of a substance when its temperature rises or falls by 1°C. The larger the specific heat capacity of the sheet-like matrix 111, the more heat it needs to absorb during heating, which means that the heating element needs to increase the amount of heat. The matrix section 11 itself heats up more slowly, resulting in slow aerosol release and a small amount of smoke in the first few puffs. At the same time, during the slow heating process of the matrix section 11, volatile components (mainly aroma components) are more likely to be released in large quantities in the early stages of inhalation, resulting in poor consistency of aroma and smoke volume before and after inhalation.

[0094] For example, the specific heat capacity of the sheet matrix 111 or the matrix strip 112 can be any one of 2.0 J / (g·K), 2.1 J / (g·K), 2.2 J / (g·K), 2.3 J / (g·K), 2.5 J / (g·K)%, 2.6 J / (g·K)%, 2.8 J / (g·K)%, 3.0 J / (g·K), 3.2 J / (g·K), 3.5 J / (g·K), 3.6 J / (g·K), 3.8 J / (g·K), 3.9 J / (g·K), and 4.0 J / (g·K), or any value between two of them.

[0095] For example, if the specific heat capacity of the sheet-like matrix 111 or matrix strip 112 is lower than 2.0 J / (g·K), the temperature of the outermost matrix segment 11 will rise too quickly, potentially leading to structural collapse or carbonization of the matrix segment 11, which will affect the release of smoke components and the generation of unpleasant odors. If the specific heat capacity of the sheet-like matrix 111 or matrix strip 112 is higher than 4.0 J / (g·K), the outermost matrix segment 11 may heat up slowly, resulting in a small initial smoke volume. In some embodiments, the temperature range corresponding to the specific heat capacity range of the sheet-like matrix 111 or matrix strip 112 is 0-40°C. The matrix segment 11 provided in this application embodiment has its specific heat capacity set to be in the range of 2.0 J / (g·K) to 4.0 J / (g·K). This specific heat capacity allows for an appropriate temperature rise in the sheet matrix 111, so that the volatilization rate of the volatile components (mainly aroma components) of the sheet matrix 111 matches the aerosol generation rate, improving the consistency of aroma and smoke volume before and after inhalation. In addition, it also allows for an appropriate heat transfer rate between the matrix segments 11, reducing the temperature difference between the areas of the matrix segment 11 near the heat source and the areas far from the heat source. This improves the problems of increased release of burnt flavor substances, structural collapse, and carbonization of the matrix segment 11 caused by local overheating, as well as the problems of insufficient extraction (reduced release of effective components) and low initial smoke volume caused by local low temperature.

[0096] In some embodiments, by setting the moisture content of the sheet matrix 111 or matrix strip 112 to a range of 4% to 10%, and coordinating the specific heat capacity to a range of 2.0 J / (g·K) to 4.0 J / (g·K), it is more conducive to matching the volatilization rate of the volatile components (mainly aroma components) of the sheet matrix 111 with the aerosol generation rate, thereby improving the consistency of aroma and smoke volume before and after inhalation.

[0097] Preferably, the specific heat capacity of the sheet-like matrix 111 or the matrix strip 112 is in the range of 2.6 J / (g·K) to 3.2 J / (g·K), and / or the moisture content is in the range of 6% to 8%. This can further improve the consistency of aroma and smoke volume before and after inhalation, and further reduce the temperature difference between the area of ​​the matrix segment 11 near the heat source and the area away from the heat source.

[0098] In some embodiments, the drying weight loss of the sheet matrix 111 or matrix strip 112 is in the range of 8% to 20%.

[0099] The drying weight loss rate of sheet matrix 111 or matrix strip 112 refers to the weight loss ratio of sheet matrix 111 or matrix strip 112 after drying process to constant weight at a set temperature. The weight loss is caused by the further volatilization of volatile substances in sheet matrix 111 or matrix strip 112 after heat treatment exceeding the intensity of drying process. Volatile substances include water, small molecule low flash point components in fragrance, etc.

[0100] For example, the weight loss during drying of the sheet matrix 111 or matrix strip 112 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".

[0101] During the production of matrix segment 11, the moisture content of the sheet matrix 111 is dried to a certain extent through a drying process to minimize the loss of aroma of the sheet matrix 111.

[0102] It should be noted that the weight loss during drying mainly consists of moisture and volatile components in the fragrance. Under normal temperature and pressure, the liquid state is uniform, while solid states generally have a more compact molecular or atomic arrangement and lower molecular or atomic freedom, typically resulting in a smaller specific heat capacity. Liquid states, on the other hand, have a more loosely arranged molecular or atomic arrangement and typically a larger specific heat capacity. If the weight loss during drying exceeds 20%, it may be due to insufficient drying intensity in the drying process of the sheet matrix 111, leading to excessively high moisture content. This results in a higher specific heat capacity for the sheet matrix 111, and excessive moisture content may also lead to high aerosol temperature and low vapor production. If the weight loss during drying is less than 8%, it may be due to excessive drying intensity in the drying process of the sheet matrix 111, resulting in significant loss of both moisture and aroma. This leads to a lower specific heat capacity for the sheet matrix 111 and may affect the aroma reduction and consistency during inhalation.

[0103] By setting the drying weight loss rate of the sheet matrix 111 or matrix strip 112 to a range of 8% to 20%, the specific heat capacity of the sheet matrix 111 can be appropriate, and the drying intensity of the drying process of the sheet matrix 111 can be appropriate. This reduces the loss of moisture and aroma in the drying process of the sheet matrix 111, which is beneficial to the preservation of aroma and the consistency of inhalation. In addition, it can also improve the problem of high aerosol temperature and low smoke volume caused by excessive moisture content of the sheet matrix 111 to a certain extent, which is further beneficial to improving the inhalation consistency and inhalation taste of the matrix segment 11.

[0104] In some embodiments, the drying weight loss of the sheet matrix 111 or matrix strip 112 is in the range of 12% to 16%.

[0105] The drying loss rate of the sheet matrix 111 or matrix strip 112 can be a point value of any one of 12%, 12.5%, 13%, 13.5%, 14%, 14.5%, 15%, 15.5%, or 16%, or a point value between any two.

[0106] Within this range of drying weight loss rate, the loss of moisture and aroma of the sheet matrix 111 during the drying process can be further reduced, and the problem of high aerosol temperature and low smoke volume caused by excessive moisture content of the sheet matrix 111 can be further improved, thereby further improving the smoking consistency and smoking taste of the matrix segment 11.

[0107] In some embodiments, please refer to Figure 6 The maximum thickness of the sheet-like matrix 111 is in the range of 0.7 mm to 1.2 mm, and the maximum thickness of the connecting region 113 is in the range of 0.02 mm to 0.5 mm.

[0108] In other words, the maximum thickness of the connecting region 113 is less than the maximum thickness of the sheet matrix 111.

[0109] The maximum thickness of the sheet-like matrix 111 can be any one of 0.7 mm, 0.8 mm, 0.9 mm, 1 mm, 1.1 mm, or 1.2 mm, or any value between two of them.

[0110] If the sheet matrix 111 is too thin (i.e., the sheet matrix 111 is relatively thin), it may have poor strength, be easy to break, lose aroma quickly, and be unsuitable for consistency. If the sheet matrix 111 is too thick (i.e., the sheet matrix 111 is relatively thick), it may require a longer drying time or a higher temperature, which may result in aroma loss.

[0111] The maximum thickness of the connecting area 113 can be any one of 0.02mm, 0.05mm, 0.1mm, 0.15mm, 0.18mm, 0.2mm, 0.25mm, 0.26mm, 0.3mm, 0.33mm, 0.36mm, 0.4mm, 0.45mm, 0.47mm, or 0.5mm, or a value between any two of them.

[0112] By setting the maximum thickness of the sheet matrix 111 to within the range of 0.7 mm to 1.2 mm, the sheet matrix 111 possesses a certain structural strength, mitigating breakage issues and facilitating the drying process to achieve appropriate drying weight loss and moisture content. Furthermore, after the aerosol matrix sheet is wound or aggregated to form the matrix segment 11, it helps increase the filling volume of the matrix segment 11 and ensures a suitable air passage 114, improving suction resistance and thus enhancing the suction experience of the aerosol-generated product 10. By setting the maximum thickness of the connecting region 113 to 0.02 mm to 0.5 mm, after the aerosol matrix sheet is wound to form the matrix segment 11, a stable air passage 114 can be formed at the connecting region 113, thereby improving suction resistance stability. Additionally, it also ensures a certain structural strength between adjacent matrix strips 112.

[0113] Preferably, the maximum thickness of the sheet-like matrix 111 is in the range of 0.9 mm to 1.1 mm.

[0114] 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 density of the matrix strip 112 is 1.05 g / cm³. 3 Up to 1.40 g / cm 3 The range.

[0115] The weight of the aerosol forming agent can be any one of 10%, 12%, 15%, 16%, 17%, 18%, 20%, 22%, 23%, 25%, 26%, 27%, 28%, 30%, 33%, 35%, 36%, 37%, 38%, or 40%, or any value between two of them.

[0116] Aerosol forming agents are used to form aerosols.

[0117] The density of the sheet-like matrix 111 or the matrix strip 112 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 / cm3 1.16 g / cm 3 1.18 g / cm 3 1.20g / cm 3 1.23g / cm 3 1.25g / cm 3 1.26 g / cm 3 1.28g / cm 3 1.30g / cm 3 1.33g / cm 3 1.37g / cm 3 1.40 g / cm 3 The point value of any one of them or the point value between any two.

[0118] 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.

[0119] 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.

[0120] The density of the sheet matrix 111 can be determined according to the method specified in YC / T 473-2013 "Determination of apparent density, true density and internal pore volume of tobacco".

[0121] It can be understood that the density of the sheet matrix 111 or matrix strip 112 is affected by the extrusion and calendering effects. During processing, the sheet matrix 111 is subjected to extrusion forces, which reduces the distance between molecules and increases the interaction forces. Some components may undergo phase transformation under high temperature and high pressure, which may cause changes in the specific heat capacity of the sheet matrix 111 or matrix strip 112. Generally, this will cause a decrease in the specific heat capacity of the sheet matrix 111 or matrix strip 112. If the density is greater than 1.40 g / cm³, the specific heat capacity will decrease. 3 This indicates that the flake matrix 111 was processed too densely, resulting in a low specific heat capacity, which hinders moisture evaporation during processing and requires a longer drying time. This can easily lead to the loss of low-flash-point substances in the aroma. Although the overall weight loss may be slower, the high moisture content will affect the amount of smoke and the smoke temperature. If the density is less than 1.05 g / cm³... 3This indicates that the sheet matrix 111 or matrix strip 112 was processed too loosely, with a large specific heat capacity. Moisture and aroma components are easily volatilized, and the matrix will lose weight rapidly in a short time, which is not conducive to the drying process.

[0122] Furthermore, if the density of the sheet-like matrix 111 or the matrix strip 112 is less than 1.05 g / cm³ 3 The heat storage capacity of the matrix segment 11, which is formed by the coiling or agglomeration of the sheet-like matrix 111, is weak. The energy input to the heating element is quickly dissipated, which may lead to a shortened effective heating time. During a single extraction cycle, the temperature of the matrix segment 11 drops from the peak (250℃) to below 180℃, the amount of aerosol generation decreases, the axial temperature gradient is significant, and the temperature difference between the distal and proximal ends of the matrix segment 11 is too large, which causes local overheating of the matrix segment 11 (increased release of burnt odor substances) and insufficient extraction in the low-temperature zone (reduced release of effective ingredients).

[0123] Therefore, by setting the density of the sheet-like matrix 111 or the matrix strip 112 to 1.05 g / cm³, 3 Up to 1.40 g / cm 3 The optimal range allows the moisture content of the sheet matrix 111 to be within a suitable range, reducing aroma loss during processing. This improves draw consistency and flavor while balancing aerosol generation and temperature. Furthermore, by synergistically designing the drying weight loss rate of the matrix segment 11 and the density of the sheet matrix 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.

[0124] Preferably, the density of the sheet-like matrix 111 or the matrix strip 112 is 1.10 g / cm³. 3 Up to 1.25 g / cm 3 The range.

[0125] In some embodiments, the moisture content of the sheet matrix 111 or matrix strip 112 is in the range of 4% to 10%.

[0126] The moisture content of the sheet-like matrix 111 or the matrix strip 112 can be any one of 4%, 4.5%, 5%, 5.5%, 5.7%, 6%, 6.3%, 6.5%, 7%, 7.5%, 7.8%, 8%, 8.5%, 9%, 9.5%, 10%, or any value between two of them.

[0127] The moisture content of the flake matrix 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".

[0128] Moisture has a high specific heat capacity, absorbing a large amount of heat when heated and releasing a large amount of latent heat when liquefied. Therefore, if the moisture content of the flake matrix 111 is too high, it will affect the heat absorption and temperature rise of other components of the flake matrix 111 (matrix segment 11), resulting in a small amount of vapor in the first few puffs. The aerosols produced will liquefy rapidly after release, releasing more heat, leading to excessively high aerosol temperature and reduced aerosol volume, which may cause burns to the smoker. If the moisture content of the flake matrix 111 is too low, the drying intensity of the flake matrix 111 during processing will be greater, resulting in a lower drying weight loss rate and greater aroma loss.

[0129] By setting the moisture content of the sheet matrix 111 or matrix strip 112 to a range of 4% to 10%, and setting the drying weight loss rate of the sheet matrix 111 or matrix strip 112 to a range of 8% to 20%, the drying weight loss rate and moisture content of the sheet matrix 111 or matrix strip 112 are designed in a coordinated manner. This can take into account the processing and manufacturing process, aroma preservation, excessive aerosol temperature, and aerosol volume. In other words, while facilitating processing and manufacturing, it is beneficial to improve the smoking consistency and smoking taste of the matrix segment 11.

[0130] Preferably, the moisture content of the sheet matrix 111 or matrix strip 112 is in the range of 6% to 8%.

[0131] In some embodiments, the mass of the sheet-like matrix 111 of a single matrix segment 11 is in the range of 200 mg to 500 mg.

[0132] The mass of the sheet-like matrix 111 of a single matrix segment 11 can be any one of 200mg, 220mg, 230mg, 250mg, 280mg, 300mg, 320mg, 340mg, 350mg, 370mg, 400mg, 420mg, 430mg, 450mg, 480mg, or 500mg, or any value between two of them.

[0133] Understandably, the mass of the sheet-like matrix 111 in a single matrix segment 11 is affected by its density and actual volume. Given a fixed volume of sheet-like matrix 111, if the mass of a single matrix segment 11 is less than 200mg, the total smoke-generating agent and aroma loading of the matrix segment 11 is relatively small, and the corresponding density of the sheet-like matrix 111 is low. Moisture and aroma components are easily volatile, leading to rapid weight loss in a short time, which is detrimental to the drying process. Furthermore, the matrix segment 11 will heat up rapidly, potentially resulting in localized scorching or carbonization. Conversely, if the mass of a single matrix segment 11 is greater than 500mg, the corresponding density of the sheet-like matrix 111 is relatively high, which is unfavorable for moisture evaporation 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 and hindering the activation of the smoke-generating agent and aroma, thus affecting the smoke volume and smoke temperature. Additionally, the heating of the matrix segment 11 is too slow.

[0134] Preferably, the mass of the sheet-like matrix 111 of a single matrix segment 11 is in the range of 300 mg to 400 mg.

[0135] In some embodiments, the porosity of the sheet matrix 111 or matrix strip 112 is in the range of 25% to 50%.

[0136] The porosity of the sheet-like matrix 111 or the matrix strip 112 can be any one of 25%, 26%, 27%, 28%, 30%, 32%, 33%, 35%, 36%, 37%, 38%, 40%, 42%, 43%, 45%, 46%, 47%, or 50%, or any value between two of them.

[0137] The porosity of the sheet-like matrix 111 or matrix strip 112 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".

[0138] Here, if the porosity of the sheet matrix 111 or the matrix strip 112 is less than 25%, the structure of the sheet matrix 111 is dense, which is not conducive to the evaporation of moisture during drying. If the porosity of the sheet matrix 111 or the matrix strip 112 is higher than 50%, the structure of the pores of the sheet matrix 111 is loose, the evaporation rate is too fast, and the aroma is lost quickly.

[0139] Thus, by setting the porosity of the sheet matrix 111 or matrix strip 112 to be greater than or equal to 25% and less than or equal to 50%, the moisture content and specific heat capacity of the sheet matrix 111 or matrix strip 112 can be kept within a suitable range, and the loss of aroma of the sheet matrix 111 or matrix strip 112 during processing can be reduced. This improves the consistency of smoking and the smoking taste while taking into account both the amount of aerosol generated and the aerosol temperature.

[0140] In some embodiments, the thermal conductivity of the sheet substrate 111 or the substrate strip 112 is in the range of 2.5 W / (m·K) to 4.5 W / (m·K).

[0141] The thermal conductivity of the sheet-like matrix 111 or the matrix strip 112 can be any one of the following values ​​or any value between two of them: 2.5 W / (m·K), 2.6 W / (m·K), 2.8 W / (m·K), 3 W / (m·K), 3.2 W / (m·K), 3.5 W / (m·K), 3.6 W / (m·K), 3.8 W / (m·K), 4 W / (m·K), 4.2 W / (m·K), 4.3 W / (m·K), and 4.5 W / (m·K).

[0142] The thermal conductivity of the sheet matrix 111 can be determined according to the method specified in GB / T 22588-2008 "Measuring thermal diffusivity or thermal conductivity by flash method".

[0143] The thermal conductivity of the sheet matrix 111 affects its heat transfer rate. During drying, assuming the sheet matrix 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 sheet matrix 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 transfer rate is too fast, and heat from the surface is quickly conducted to the entire sheet matrix 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.

[0144] Preferably, the thermal conductivity of the sheet-like matrix 111 or the matrix strip 112 is in the range of 3 W / (m·K) to 3.8 W / (m·K).

[0145] In some embodiments, the protein source content of the aerosol matrix sheet or matrix strip 112 is in the range of 5% to 15% by weight.

[0146] The protein source content of the aerosol matrix tablet can be any one of 5%, 6%, 7%, 8%, 9%, 10%, 11%, 12%, 13%, 14%, or 15%, or any value between two of them.

[0147] Within this range of protein source content, the sheet matrix 111 can form a dense structure through cross-linking, which is beneficial for a lower specific heat capacity of the sheet matrix 111, allowing the medium to heat up rapidly. In addition, it also helps to improve the problems of unpleasant odor, poor strength, and easy breakage caused by excessive protein source content.

[0148] In some embodiments, the substrate strip 112 is constructed by pressing and cutting a sheet-like substrate 111, and a groove 115 is formed between adjacent substrate strips 112, with a portion of the bottom wall of the groove 115 forming a connecting region 113.

[0149] For example, such as Figure 6 The sheet substrate 111 can be cut or pressed by a mold to form an uneven surface. Here, the protruding area is the substrate strip 112 and the recessed area is the groove 115.

[0150] In some embodiments, please refer to Figures 4 to 6 The cutting direction of the sheet-like matrix 111 includes the second direction.

[0151] here, Figure 5 The continuous or dashed lines inside the sheet-like matrix 111 represent the cutting lines of the sheet-like matrix 111, and the breaks in the dashed lines represent the connecting regions 113.

[0152] Here, the sheet-like matrix 111 can be cut only along the second direction, or it can be cut along other directions in addition to the second direction.

[0153] In some embodiments, please refer to Figures 1 to 2 The first direction is parallel to the second direction.

[0154] In other words, the extension direction of the matrix strip 112 is parallel to the cutting direction of the sheet matrix 111.

[0155] Here, the extension direction of the matrix strip 112 and the cutting direction of the sheet matrix 111 can be approximately parallel or completely parallel.

[0156] In some embodiments, please refer to Figure 4 The first direction intersects with the second direction.

[0157] Here, the extension direction of the matrix strip 112 intersects the cutting direction of the sheet matrix 111. That is, the extension direction of the matrix strip 112 is not parallel to the cutting direction of the sheet matrix 111. For example, the extension direction of the matrix strip 112 is perpendicular to the cutting direction of the sheet matrix 111.

[0158] Of course, in other embodiments, the sheet-like matrix 111 includes multiple cutting directions. For example, the sheet-like matrix 111 includes a cutting direction parallel to the extension direction of the matrix strip 112, and also includes a cutting direction intersecting the extension direction of the matrix strip 112.

[0159] In some embodiments, the extension trajectory of the pressure groove 115 is a straight line or a curve.

[0160] In other words, the shearing direction of the sheet-like matrix 111 can be curved, such as S-shaped or spiral, or it can be straight.

[0161] In some embodiments, the matrix strip 112 is straight or at least partially curved.

[0162] 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.

[0163] 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.

[0164] 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.

[0165] Here, the cross-sectional shape of the matrix strips 112 can be the same or different.

[0166] In other embodiments, the cross-sectional shape of the matrix strip 112 may also be irregular.

[0167] In some embodiments, the aerosol matrix sheet includes a base layer, and a sheet-like matrix 111 is disposed on at least one side of the base layer along the thickness direction of the aerosol matrix sheet.

[0168] By setting a sheet-like matrix 111 on the substrate layer, the two together form an aerosol matrix sheet. The sheet-like matrix 111 is an aerosol generating matrix that can generate aerosols and is coated on the substrate layer.

[0169] Here, the sheet matrix 111 can be provided on one side of the substrate layer along the thickness direction of the aerosol matrix sheet, or the sheet matrix 111 can be provided on both sides of the substrate layer along the thickness direction of the aerosol matrix sheet.

[0170] In this embodiment, by setting a base layer, it is beneficial to improve the structural strength of the aerosol matrix sheet, improve the integrity and overall strength of the aerosol matrix sheet, thereby reducing the displacement caused by factors such as vibration during transportation, storage or use, which can further improve the stability of suction resistance. At the same time, it can also improve the situation of matrix strip 112 breaking and falling off, which is beneficial to improve suction stability and yield.

[0171] In some embodiments, the base layer includes plant fiber fabric, nonwoven fabric, and / or metal foil.

[0172] In other words, the substrate layer can be plant fiber fabric, non-woven fabric, metal foil, or both non-woven fabric and metal foil.

[0173] Here, the metal foil not only provides support but also facilitates heat transfer, thereby improving atomization efficiency and rapid smoke output, and ultimately enhancing the vaping experience.

[0174] For example, the surface of the metal foil is pre-coated with a smoke-generating agent, which helps to further increase the amount of atomization.

[0175] Plant fiber fabrics and non-woven fabrics have high air permeability, which increases air permeability and connection strength; in addition, plant fiber fabrics and non-woven fabrics also have a cushioning and elastic effect, which is beneficial to the fit between the heating element and the substrate section 11.

[0176] In other embodiments, the base layer includes a matrix layer constructed from a matrix slurry by casting, spraying, or dipping, and the matrix layer can be heated to generate an aerosol.

[0177] Both the matrix layer and the sheet matrix 111 can be heated to generate aerosols, which is conducive to the rapid explosion of smoke and a large amount of smoke. Furthermore, the aerosols generated by the matrix layer and the sheet matrix 111 can mix and interact with each other, which can increase the comfort of the aerosols and improve the quality of inhalation.

[0178] In related technologies where the matrix unit is granular, the matrix unit is filled using a filling process. However, the filling process suffers from low production efficiency and unstable suction resistance.

[0179] This application mainly uses casting and extrusion processes. The matrix layer is formed by casting matrix slurry, which has high production efficiency. The sheet matrix 111 adheres to the matrix layer. By adjusting the size and distribution of the matrix strips 112, sufficient air channels 114 can be formed. After the sheet matrix 111 is fixed, the relative position changes little, which helps to reduce the displacement caused by vibration and other factors, thereby improving the stability of suction resistance.

[0180] In some embodiments, the connection region 113 is formed by a portion of the base layer.

[0181] In other words, the connecting region 113 includes at least a portion of the base layer, which includes plant fiber fabric, non-woven fabric and / or metal foil, and has a large structural strength. In this way, the matrix segment 11 can form the airway 114 in the connecting region 113, and also have a good connection strength between adjacent matrix strips 112.

[0182] Please see Figure 1The embodiments of this application also provide a method for preparing a matrix segment 11, wherein the matrix segment 11 includes an aerosol matrix sheet, the aerosol matrix sheet includes a sheet-like matrix 111, and the preparation method includes the following steps.

[0183] Step S101: Prepare matrix slurry.

[0184] In some embodiments, the raw materials for the matrix segment 11 include protein sources, fiber sources, adhesives, soluble inorganic salts, inorganic fillers, etc.

[0185] For example, the protein source includes one or more of rice protein, wheat protein, soy protein, and pea protein.

[0186] 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.

[0187] The particle size of the protein source and fiber source is 80 mesh to 120 mesh.

[0188] 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.

[0189] 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.

[0190] For example, the inorganic filler includes one or more of light calcium carbonate, heavy calcium carbonate, and alumina.

[0191] The particle size of the inorganic filler is 160-200 mesh.

[0192] 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.

[0193] 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.

[0194] For example, the above raw materials are mixed to obtain a matrix slurry and then fermented.

[0195] For example, the matrix slurry is proofed at 45°C-55°C for 60-90 minutes.

[0196] 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.

[0197] Step S102: The matrix slurry is extruded to obtain a primary sheet matrix structure of the first thickness.

[0198] The matrix slurry was extruded using a twin-screw extruder to obtain a primary sheet matrix 111 structure of the first thickness.

[0199] For example, the width of the primary sheet matrix 111 structure is 100mm to 200mm, the thickness is 2.0mm to 5.0mm, and the length is 10mm to 30mm.

[0200] 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.

[0201] Step S103: Press the primary sheet matrix structure into an aerosol matrix sheet of a second thickness, wherein the first thickness is greater than the second thickness.

[0202] The primary sheet matrix 111 structure obtained in step S102 is passed through 3 to 5 rollers, and finally the sheet is rolled into an aerosol matrix sheet with a thickness of 0.8 to 1.2 mm.

[0203] For example, the primary sheet matrix 111 structure is rolled into 8 sheets of 3.0 to 4.5 mm thickness by 8 pairs of rollers. The sheets are stacked in pairs and rolled into 4 sheets of 1.5 to 2.5 mm thickness by 4 pairs of rollers. The sheets are then stacked in pairs and rolled into 0.7 to 1.2 mm thickness by 2 pairs of rollers. The sheets are then stacked in pairs and rolled into 0.7 to 1.2 mm thickness by 1 pair of rollers.

[0204] For example, the primary sheet matrix 111 structure is rolled into two sheets with a thickness of 3.0 to 4.5 mm by two pairs of rollers. The two sheets are stacked and then rolled to thicknesses of 5.0 to 5.5 mm, 4.0 to 4.5 mm, 3.0 to 3.5 mm, 2.0 to 2.5 mm, and 0.8 to 1.2 mm by five stages of rollers, respectively.

[0205] Step S104: Cut the aerosol matrix sheet into multiple unbroken matrix strips.

[0206] Please see Figures 4 to 6 The aerosol matrix sheet is cut into multiple parallel and spaced matrix strips 112. At least one connection region 113 is formed between adjacent matrix strips 112. That is, there may be one connection region 113 between adjacent matrix strips 112, or multiple connection regions 113 may be formed. Alternatively, some matrix strips 112 may have one connection region 113 between them, while other matrix strips 112 may have multiple connection regions 113 between them.

[0207] Here, the connecting regions 113 formed between the matrix strips 112 can be the same or different.

[0208] It should be noted that the specific location of the connecting area 113 is not restricted here.

[0209] 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.

[0210] Adjacent matrix strips 112 can be connected together via connecting areas 113, making the sheet matrix 111 a single integrated structure. This improves the integrity and overall strength of the sheet matrix 111, thereby reducing displacement and breakage caused by vibration, bending, pressure, and other factors during transportation, storage, or use. This further enhances the stability of the draw resistance and reduces the likelihood of matrix strip 112 breaking and detaching, thus improving vapor production, draw stability, and product yield. Furthermore, the matrix strips 112 are a homogeneous system, which facilitates the continuous and uniform generation of aerosols, thereby improving the draw experience.

[0211] For example, an aerosol matrix sheet with a diameter of 0.7 mm to 1.2 mm for a single matrix strip 112 can be formed by cutting with a round-edged cutter with a gap of 1 mm. The adjacent matrix strips 112 are arranged side by side but not completely cut off.

[0212] Step S105: The aerosol matrix sheet after compression cutting is wound or gathered together.

[0213] The aerosol matrix sheet is wound into matrix segment 11 according to different requirements such as the number of suction ports, smoke volume, and smoke burst speed.

[0214] For example, the aerosol matrix sheet is wound into a cylindrical shape with a diameter of 5.3mm-5.35mm or 7.1mm-7.15mm.

[0215] For example, the aerosol matrix sheet can be directly wound to form a matrix segment 11 of 12mm-15mm; or the aerosol matrix sheet can be directly wound to form a cylinder of 18mm-36mm, and then the cylinder can be cut into matrix segments 11 of 12mm-15mm.

[0216] Step S106: Assembly. The matrix segment 11 obtained in step S105 is assembled with other components such as plugs / cooling sections (the sealing section and the cooling section are connected) / filters to form a finished product that can be used in smoking devices with circumferential or central needle heating.

[0217] After step S103, powder can also be coated onto the surface of the aerosol matrix sheet of the second thickness.

[0218] For example, the powder is a metal powder.

[0219] For example, the powder is alumina powder.

[0220] After step S104, the aerosol matrix sheet obtained in step S104 can be dried at 90-110°C for 3-7 minutes.

[0221] The preparation method of this application is entirely based on the extensibility of protein to form a sheet matrix 111. However, it is necessary to prevent the addition of too much protein source from producing the characteristic odor of burnt protein during suction. Therefore, the powdered material must be calendered into a continuous and regular sheet with a low protein content. If repeated calendering is used, dozens of calendering operations are required. This application 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.

[0222] 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 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 material 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 material breakage in the calendered sheets. This application overcomes the adverse effects of unstable extrusion speed by cutting the extruded material into regular small flakes, thus ensuring the continuity and stability of the calendering process feed.

[0223] The aerosol matrix sheet prepared by the preparation method of this application has a longitudinal tensile strength greater than or equal to 4.5 N, a first puff smoke volume greater than or equal to 5.5 mg, an average smoke volume greater than or equal to 6.5 mg / puff, and a puff-by-puff consistency RSD of less than 20%.

[0224] 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.

[0225] Example 1:

[0226] By weight, take 8.5 parts wheat protein, 38 parts 80-mesh bamboo fiber, 4 parts light calcium carbonate, 8 parts heavy calcium carbonate, 1.6 parts konjac gum, and 2.8 parts carrageenan, and mix thoroughly. Dissolve 1.5 parts sodium chloride and 1.5 parts sodium dihydrogen phosphate in 15 parts water, and mix thoroughly with 35 parts glycerin, 16 parts propylene glycol, and 30 parts flavoring. Add the liquid material to the stirred solid material in a spray form and mix thoroughly. Then extrude the mixture through a twin-screw extruder. Each screw consists of 16 conveying modules, 4 meshing modules, 4 compression modules, and 1 exhaust module. The extrusion pressure is 1.4 MPa, the screw speed is 50 rpm, and the segmented heating module heats the material from front to back. The temperatures are successively set at 40℃, 40℃, 60℃, 60℃, 90℃, 90℃, 100℃, and 100℃, with an output width of 100mm, a thickness of 3.0mm, and a length of 10mm. The material is then rolled into a sheet with a thickness of 0.8mm using three stages of 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 1mm gap to form a single matrix strip 112 with a diameter of 1.0mm. Adjacent matrix strips 112 are arranged side by side but not completely cut. This sheet is dried at 110℃ for 3 minutes to obtain an aerosol matrix sheet. The obtained aerosol matrix sheet is divided into small strips with a transverse width of 32mm, which are then rolled into a cylindrical shape with a diameter of 7.10mm using a rolling device.

[0227] Example 2:

[0228] By weight, take 10.5 parts pea protein, 34 parts 100-mesh pea fiber, 4 parts light calcium carbonate, 10 parts heavy calcium carbonate, 1.5 parts xanthan gum, and 4.5 parts locust bean gum, mix thoroughly and set aside. Dissolve 2 parts potassium carbonate and 2 parts sodium pyrophosphate in 13.5 parts water, and mix thoroughly with 32 parts glycerin, 14 parts propylene glycol, and 28 parts flavoring. Then, add the liquid material to the stirred solid material in a spray form and mix thoroughly. Then, extrude the mixture through a twin-screw extruder. Each screw consists of 16 conveying modules, 4 meshing modules, 4 compression modules, and 1 venting module. The extrusion pressure is 1.5 MPa, the screw speed is 50 rpm, and the segmented heating modules are arranged from front to back. The temperatures were successively set to 40℃, 40℃, 70℃, 70℃, 90℃, 90℃, 110℃, and 110℃, with an output width of 120mm, a thickness of 2.0mm, and a length of 15mm. The material was then rolled into a sheet with a thickness of 0.9mm using four rollers. A layer of alumina powder was uniformly coated onto the surface of the sheet. The resulting sheet was cut with a round-edged cutter with a 1mm gap to form a single matrix strip 112 with a diameter of 1.0mm. Adjacent matrix strips 112 were arranged side by side but not completely cut. This sheet was dried at 100℃ for 4.5 minutes to obtain an aerosol matrix sheet. The obtained aerosol matrix sheet was divided into small strips with a transverse width of 31mm and rolled into a cylindrical shape with a diameter of 7.10mm using a rolling device.

[0229] Example 3:

[0230] By weight, take 12 parts soybean protein, 35 parts 100-mesh soybean fiber, 5 parts light calcium carbonate, 10 parts heavy calcium carbonate, 1.5 parts sodium polyacrylate, and 2 parts gellan gum, and mix thoroughly. Dissolve 1 part sodium chloride, 1 part sodium carbonate, and 2 parts sodium metaphosphate in 12 parts water, and mix thoroughly with 30 parts glycerin, 15 parts propylene glycol, and 30 parts flavoring. 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 1.8 MPa, the screw speed is 50 rpm, and the segmented heating modules are arranged from front to back. The temperatures were successively set to 40℃, 40℃, 70℃, 70℃, 90℃, 90℃, 110℃, and 110℃, with an output width of 140mm, a thickness of 2.0mm, and a length of 20mm. The material was then rolled into a sheet with a thickness of 1.0mm using four rollers. A layer of alumina powder was uniformly coated onto 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 90℃ for 7 minutes to obtain an aerosol matrix sheet. The obtained aerosol matrix sheet was divided into small strips with a transverse width of 30mm and rolled into a cylindrical shape with a diameter of 7.15mm using a rolling device.

[0231] Example 4:

[0232] By weight, take 11 parts soybean protein, 40 parts 100-mesh soybean fiber, 5 parts light calcium carbonate, 12 parts heavy calcium carbonate, 1 part sodium polyacrylate, and 2 parts gellan gum, and mix thoroughly. Dissolve 2 parts potassium carbonate, 1 part sodium dihydrogen phosphate, and 1 part sodium metaphosphate in 10 parts water, and mix thoroughly with 30 parts glycerin, 12 parts propylene glycol, and 28 parts flavoring. Then, add the liquid material to the stirred solid material in a spray form and mix thoroughly. Extrude the mixture through a twin-screw extruder. Each screw consists of 13 conveying modules, 5 meshing modules, 5 compression modules, and 2 venting modules. The extrusion pressure is 1.9 MPa, the screw speed is 50 rpm, and the segmented heating modules are arranged from front to back. The temperatures were successively set to 40℃, 40℃, 70℃, 70℃, 90℃, 90℃, 110℃, and 110℃, with an output width of 140mm, a thickness of 2.0mm, and a length of 20mm. The material was then rolled into a sheet with a thickness of 1.0mm using five rollers. A layer of alumina powder was uniformly coated onto 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. The obtained aerosol matrix sheet was divided into small strips with a transverse width of 29mm and rolled into a cylindrical shape with a diameter of 7.15mm using a rolling device.

[0233] Example 5

[0234] By weight, take 12 parts rice protein, 35 parts 100-mesh rice bran fiber, 5 parts light calcium carbonate, 15 parts heavy calcium carbonate, 2.5 parts guar gum, and 2.5 parts sodium carboxymethyl cellulose, mix thoroughly and set aside. Dissolve 2 parts sodium carbonate, 1 part sodium dihydrogen phosphate, and 1 part sodium pyrophosphate in 15 parts water, and mix thoroughly with 35 parts glycerin, 15 parts propylene glycol, and 30 parts flavoring. Add the liquid material to the stirred solid material via spray, mix thoroughly, and then extrude through a twin-screw extruder. Each screw consists of 16 conveying modules, 4 meshing modules, 4 compression modules, and 1 venting module. The extrusion pressure is 1.6 MPa, the screw speed is 60 rpm, and the segmented heating module... The temperatures from front to back are 40℃, 60℃, 70℃, 80℃, 90℃, 100℃, 130℃, and 110℃ respectively, 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. The obtained aerosol matrix sheet is divided into small strips with a transverse width of 29mm, which are then rolled into a cylindrical shape with a diameter of 7.15mm by a rolling device.

[0235] Comparative Example 1:

[0236] By weight, take 18 parts wheat protein, 28 parts 80-mesh bamboo fiber, 4 parts light calcium carbonate, 8 parts heavy calcium carbonate, 2 parts konjac gum, and 3 parts carrageenan, and mix thoroughly. Dissolve 2 parts sodium chloride and 2 parts sodium dihydrogen phosphate in 10 parts water, and mix thoroughly with 28 parts glycerin, 15 parts propylene glycol, and 25 parts flavoring. 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 2.2 MPa, and the screw speed is 70 rpm. The segment heating module has temperatures ranging from 40℃, 60℃, 70℃, 80℃, 90℃, 120℃, 150℃, and 110℃ from front to back. The output width is 100mm and the thickness is 1.2mm. A layer of alumina powder is uniformly coated on the surface of the sheet. The resulting sheet is cut with a round-edged cutter with a 1mm gap to form a single matrix strip 112 with a diameter of 1.0mm. Adjacent matrix strips 112 are parallel but not completely cut. This sheet is dried at 110℃ for 5 minutes to obtain an aerosol matrix sheet. The obtained aerosol matrix sheet is divided into small strips with a transverse width of 27mm, which are then rolled into a cylindrical shape with a diameter of 7.10mm using a rolling device.

[0237] Comparative Example 2:

[0238] By weight, take 14 parts rice protein, 32 parts 100-mesh rice bran fiber, 6 parts light calcium carbonate, 12 parts heavy calcium carbonate, 2.5 parts guar gum, and 2.5 parts sodium carboxymethyl cellulose, and mix thoroughly. Dissolve 2 parts potassium carbonate, 1 part sodium dihydrogen phosphate, and 1 part sodium metaphosphate in 18 parts water, and mix thoroughly with 33 parts glycerin, 15 parts propylene glycol, and 30 parts flavoring. Then, add the liquid material to the stirred solid material in a spray form and mix thoroughly. Pass through 5 stages... Roller is used to roll the sheet into a 0.8 mm thick sheet, and the surface of the sheet is uniformly coated with a layer of alumina powder. The resulting sheet is cut with a round-mouth cutter with a 1.0 mm gap to form a single matrix strip 112 with a diameter of 1.0 mm. Adjacent matrix strips 112 are parallel but not completely cut. The sheet is dried at 100 °C for 3 min to obtain an aerosol matrix sheet. The obtained aerosol matrix sheet is divided into small strips with a transverse width of 32 mm, and rolled into a cylindrical shape with a diameter of 7.15 mm by a rolling device.

[0239] The aerosol matrix sheet and matrix segment 11 obtained above were analyzed, and the results are as follows:

[0240]

[0241] The test data shows that, compared with Examples 1-5 and Comparative Examples 1-2, one of the factors affecting the specific heat capacity of the sheet matrix 111 is the content of its liquid components, such as water, flavoring, glycerin, and propylene glycol. Generally, the specific heat capacity of liquids is higher than that of solids. Another influencing factor is the density of the sheet matrix 111, which depends on the degree of cross-linking and density of the sheet matrix 111 itself. Comparing the cross-linking properties of protein sources and colloidal combinations, wheat protein system has the best cross-linking properties, while rice protein has the worst. The high temperature and pressure of the extrusion process will make the sheet matrix 111 denser, and some components may even undergo phase transformation under high temperature and pressure. The stronger the effect, the more volatile substances are vaporized and lost during extrusion, and the lower the specific heat capacity of the sheet matrix 111. The calendering process, because it does not involve high temperature, has a weaker impact on the specific heat capacity than the extrusion process.

[0242] From the perspective of suction effect, the larger the specific heat capacity, the greater the heat required for the sheet matrix 111 to heat up. The initial smoke volume of the sheet matrix 111 is generally small, and the average smoke volume is also small. On the other hand, the smaller the specific heat capacity of the sheet matrix 111, the more conducive it is to heating up the sheet matrix 111. The initial smoke volume is generally larger, and the average smoke volume is also larger.

[0243] Therefore, by adjusting the protein source and adhesive, the sheet matrix 111 forms a dense structure through cross-linking, which helps to reduce the specific heat capacity of the sheet matrix 111 and allows it to heat up rapidly. Adjusting the extrusion process parameters (temperature, pressure) causes the protein source, adhesive, and fibers to interact. Under high temperature and pressure, the density of the sheet matrix 111 increases, some components undergo phase transitions, and the specific heat capacity of the sheet matrix 111 decreases, which is beneficial for its rapid heating.

[0244] In the description of this application, the references to terms such as "in one embodiment," "in some embodiments," "in other embodiments," "in yet another embodiment," or "exemplary," 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 a suitable manner in any one or more embodiments or examples. Furthermore, without contradiction, those skilled in the art can combine the different embodiments or examples described in this application, as well as the features of the different embodiments or examples.

[0245] 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 are included within the scope of protection of this application.

Claims

1. A matrix segment, characterized in that, The matrix segment is constructed by winding or aggregating aerosol matrix sheets. The aerosol matrix sheet comprises a sheet-like matrix, which is a one-piece structure. The sheet-like matrix comprises a plurality of parallel and spaced matrix strips, with at least one connecting region formed between adjacent matrix strips, the connecting region connecting adjacent matrix strips, and the aerosol matrix sheet can be heated to generate aerosol; The moisture content of the matrix strip is in the range of 4% to 10%, and the specific heat capacity of the matrix strip is in the range of 2.0 J / (g·K) to 4.0 J / (g·K).

2. The matrix segment according to claim 1, characterized in that, The specific heat capacity of the matrix strip is in the range of 2.6 J / (g·K) to 3.2 J / (g·K).

3. The matrix segment according to claim 1, characterized in that, The drying weight loss of the sheet-like matrix is ​​in the range of 8% to 20%.

4. The matrix segment according to claim 1, characterized in that, The matrix strip includes an aerosol forming agent, the weight of which is in the range of 10% to 40% based on the dry weight of the matrix strip, and the density of the matrix strip is 1.05 g / cm³. 3 Up to 1.40 g / cm 3 The range.

5. The matrix segment according to claim 1, characterized in that, The weight of a single said matrix segment of the sheet-like matrix is ​​in the range of 200 mg to 500 mg; and / or, The porosity of the sheet-like matrix is ​​in the range of 20% to 50%.

6. The matrix segment according to claim 1, characterized in that, The maximum thickness of the sheet-like matrix is ​​in the range of 0.7 mm to 1.2 mm, and the maximum thickness of the connecting region is in the range of 0.02 mm to 0.5 mm.

7. The matrix segment according to claim 1, characterized in that, The thermal conductivity of the substrate strip is in the range of 2.5 W / (m·K) to 4.5 W / (m·K).

8. The matrix segment according to any one of claims 1-7, characterized in that, The protein source content of the aerosol matrix sheet is in the range of 5% to 15% by weight.

9. An aerosol-generating product, characterized in that, Includes the aerosol matrix segment as described in any one of claims 1-8.

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

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