Substrate segment and aerosol-generating product

Abstract

A substrate segment (11) and an aerosol-generating product (10). The substrate segment (11) at least comprises a first sheet (110) and a second sheet (111); the substrate segment (11) is configured to be formed by winding or gathering the first sheet (110) and the second sheet (111); the first sheet (110) comprises a plurality of substrate rods (112) arranged in parallel and spaced apart, and at least one connection region (113) is formed between adjacent substrate rods (112); the connection region (113) connects the adjacent substrate rods (112); and at least the first sheet (110) comprises an aerosol-generating material and can be heated to generate aerosol. The substrate segment (11) is not formed of a single structure, and the internal structure of the substrate segment (11) may be arranged non-uniformly. In this way, the effect of heat-induced aerosol release in different regions of the substrate segment (11) can be adjusted by changing the first sheet (110) and the second sheet (111), so as to accommodate the temperature distribution characteristics of different heating modes, such that the substrate segment (11) as a whole can release aerosol uniformly, helping to improve the stability of aerosol generated from the substrate segment (11).

Description

A matrix segment and an aerosol-generated product

[0001] Cross-references to related applications

[0002] This disclosure is based on and claims priority to patent applications No. 202411844283.8, filed on December 13, 2024, and No. 202511151121.0, filed on August 15, 2025, the entire contents of which are incorporated herein by reference. Technical Field

[0003] This disclosure relates to the field of smoke-generating articles, and in particular to a matrix segment and an aerosol-generating article. 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 stability of the generated aerosol is one of the indicators for evaluating the performance of the aerosol-generated product. Therefore, improving the stability of the generated aerosol is one of the research directions in the industry. Summary of the Invention

[0006] In view of this, the present disclosure aims to provide a matrix segment and an aerosol generating article that can improve the stability of the generated aerosol to a certain extent.

[0007] To achieve the above objectives, a first aspect of this disclosure provides a substrate segment, the substrate segment comprising at least a first sheet and a second sheet, the substrate segment being constructed by winding or aggregating the first sheet and the second sheet.

[0008] The first sheet includes a plurality of parallel and spaced matrix strips, and at least one connecting region is formed between adjacent matrix strips, the connecting region connecting adjacent matrix strips. At least the first sheet contains an aerosol generating material and can be heated to generate an aerosol.

[0009] In one embodiment, the first sheet and the second sheet are stacked along the thickness direction, and the matrix segment is formed by winding or gathering the stacked first sheet and the second sheet.

[0010] In one embodiment, the second sheet comprises an aerosol generating material, the thickness of the second sheet is less than the maximum thickness of the first sheet, or the density of the second sheet is less than the density of the first sheet, or the thermal conductivity of the second sheet is less than the thermal conductivity of the first sheet.

[0011] In one embodiment, the second sheet includes a plurality of parallel and spaced matrix strips, and at least one connecting region is formed between adjacent matrix strips, the connecting region connecting adjacent matrix strips.

[0012] In one embodiment, at least a portion of the matrix strip of the first sheet corresponds to at least a portion of the connecting region of the second sheet, or, at least a portion of the matrix strip of the first sheet corresponds to at least a portion of the matrix strip of the second sheet, and at least a portion of the connecting region of the first sheet corresponds to at least a portion of the connecting region of the second sheet.

[0013] In one embodiment, the aerosol-generating material of the first sheet is different from the aerosol-generating material of the second sheet.

[0014] In one embodiment, in the first sheet, some of the matrix strips are different from the other matrix strips, or some of the connecting regions are different from the other connecting regions.

[0015] In one embodiment, in the first sheet, at least some of the matrix strips have cross-sectional dimensions different from the cross-sectional dimensions of the other matrix strips, or...

[0016] At least some of the matrix strips have a cross-sectional shape different from the cross-sectional shape of the other matrix strips, or at least some of the matrix strips have a density different from the density of the other matrix strips.

[0017] In one embodiment, the second sheet is a paper sheet, non-woven fabric, or metal foil, and the matrix segment is formed by winding the first sheet and the second sheet together after they are stacked.

[0018] In one embodiment, the thickness of the second sheet is less than or equal to 0.4 mm, and the maximum thickness of the first sheet is in the range of 0.7 mm to 1.4 mm.

[0019] In one embodiment, the second sheet is loaded with an aerosol-generating material.

[0020] In one embodiment, the tensile strength of the second sheet is greater than that of the first sheet along the length of the substrate segment.

[0021] In one embodiment, the thermal conductivity of the second sheet is less than that of the first sheet.

[0022] In one embodiment, the volume ratio of the second sheet to the first sheet is in the range of 0.1 to 0.4.

[0023] In one embodiment, the density of the second sheet is less than the density of the first sheet.

[0024] In one embodiment, the viscosity of the second sheet is less than the viscosity of the first sheet.

[0025] In one embodiment, the matrix segment is columnar, the second sheet is wound or gathered around the center of the matrix segment to form an inner core, and the first sheet is wound around the outer periphery of the inner core.

[0026] In one embodiment, the volume ratio of the second sheet to the matrix segment is in the range of 0.2 to 0.45.

[0027] In one embodiment, the density of the first sheet is 1000 mg / cm³. 3 Up to 1500 mg / cm 3 The range.

[0028] In one embodiment, the tensile strength of the first sheet along the length of the matrix strips is in the range of 400 N / m to 800 N / m.

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

[0030] In one embodiment, the absorption resistance of the matrix segment is greater than 0 and less than or equal to 5 mm of water column.

[0031] In one embodiment, the fill rate of the matrix segment is in the range of 60% to 90%.

[0032] A second aspect of this disclosure provides an aerosol-generating article, comprising:

[0033] The matrix segment described in any embodiment of this disclosure.

[0034] The matrix segment provided in this disclosure is constructed by winding or aggregating a first sheet and a second sheet, which improves the overall integrity and structural strength of the matrix segment. The forming process of the matrix segment is simple and also facilitates assembly manufacturing. Since the matrix segment is formed by winding or aggregating the first and second sheets, it is not formed from a single structure. The internal structure of the matrix segment can be unevenly arranged. Thus, by changing the first and second sheets, the effect of aerosol release in different areas of the matrix segment can be adjusted to adapt to the temperature distribution characteristics of different heating methods. This allows the matrix segment to release aerosols uniformly as a whole, which helps improve the stability of aerosol generation in the matrix segment. Attached Figure Description

[0035] Figure 1 is a cross-sectional schematic diagram of a first sheet according to some embodiments of the present disclosure;

[0036] Figure 2 is a schematic diagram of the structure of the second sheet according to some embodiments of this disclosure;

[0037] Figure 3 is a schematic diagram of the structure of the first sheet and the second sheet according to some embodiments of this disclosure;

[0038] Figure 4 is a schematic diagram of the stacked arrangement of a first sheet and a second sheet according to some embodiments of the present disclosure;

[0039] Figure 5 is a schematic diagram of the first sheet and the second sheet being stacked in some embodiments of this disclosure;

[0040] Figure 6 is a cross-sectional schematic diagram of a matrix segment according to some embodiments of the present disclosure;

[0041] Figure 7 is a cross-sectional schematic diagram of the matrix segment according to some embodiments of this disclosure;

[0042] Figure 8 is a cross-sectional schematic diagram of the first sheet according to some embodiments of this disclosure;

[0043] Figure 9 is a cross-sectional schematic diagram of the first sheet according to some embodiments of this disclosure;

[0044] Figure 10 is a cross-sectional schematic diagram of the first sheet according to some embodiments of the present disclosure;

[0045] Figure 11 is a cross-sectional schematic diagram of the first sheet according to some embodiments of this disclosure;

[0046] Figure 12 is a schematic cross-sectional view of the first sheet according to some embodiments of this disclosure;

[0047] Figure 13 is a cross-sectional schematic diagram of the first sheet according to some embodiments of the present disclosure;

[0048] Figure 14 is a cross-sectional schematic diagram of the first sheet according to some embodiments of this disclosure;

[0049] Figure 15 is a cross-sectional schematic diagram of the first sheet according to some embodiments of this disclosure;

[0050] Figure 16 is a schematic diagram of the structure of the second sheet according to some embodiments of the present disclosure;

[0051] Figure 17 is a schematic diagram of the structure of an aerosol generation system according to some embodiments of the present disclosure;

[0052] Figure 18 is a schematic diagram of the structure of the aerosol-generated article according to the first embodiment of this disclosure;

[0053] Figure 19 is a schematic diagram of the structure of the aerosol-generated article according to the second embodiment of this disclosure;

[0054] Figure 20 is a schematic diagram of the structure of the aerosol-generated article according to the third embodiment of this disclosure.

[0055] Explanation of reference numerals in the attached drawings: 10. Aerosol generating product; 11. Matrix section; 110. First sheet; 111. Second sheet; 112. Matrix strip; 113. Connecting area; 114. Airflow channel; 12. Encapsulation layer; 13. First functional section; 131. Hollow tube section; 1311. Hollow channel; 132. Filter section; 133. Support section; 134. Air inlet; 14. Second functional section; 20. Aerosol generating device; 21. Container chamber; 22. Heating element; 23. Energy supply element; 100. Aerosol generating system. Detailed Implementation

[0056] To make the objectives, technical solutions, and advantages of the embodiments of this disclosure clearer, the technical solutions of the embodiments of this disclosure 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 disclosure, and are therefore only examples, and should not be used to limit the scope of protection of this disclosure. All other embodiments obtained by those skilled in the art based on the embodiments of this disclosure without creative effort are within the scope of protection of this disclosure.

[0057] In the description of the embodiments of this disclosure, 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 or secondary relationship of the indicated technical features. In the description of the embodiments of this disclosure, "a plurality of" means two or more, unless otherwise explicitly defined.

[0058] 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 disclosure. 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.

[0059] In the description of the embodiments of this disclosure, 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, or B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects are in an "or" relationship.

[0060] In the description of the embodiments of this disclosure, 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 disclosure according to the specific circumstances.

[0061] In the description of the embodiments of this disclosure, 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.

[0062] In the description of this disclosure, 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 disclosure 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 disclosure.

[0063] The present disclosure will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0064] This disclosure provides a matrix segment 11, as shown in Figures 1 to 16. The matrix segment 11 includes at least a first sheet 110 and a second sheet 111. The matrix segment 11 is constructed by winding or gathering the first sheet 110 and the second sheet 111. The first sheet 110 includes a plurality of parallel and spaced matrix strips 112, and at least one connecting region 113 is formed between adjacent matrix strips 112. The connecting region 113 connects adjacent matrix strips 112. At least the first sheet 110 contains an aerosol generating material and can be heated to generate an aerosol.

[0065] The matrix segment 11 provided in this embodiment can be applied to the aerosol generation article 10, and the matrix segment 11 can be used to generate sol.

[0066] Here, the matrix segment 11 is constructed by winding or gathering the first sheet 110 and the second sheet 111 together.

[0067] For example, please refer to Figures 3 to 7. The first sheet 110 and the second sheet 111 are stacked along the thickness direction, and the matrix segment 11 is formed by winding or gathering the stacked first sheet 110 and the second sheet 111.

[0068] Here, the first sheet 110 and the second sheet 111 are stacked on top of each other along the thickness direction, so that the two are stacked one on top of the other.

[0069] When stacking, the alignment of the first sheet 110 and the second sheet 111 is not limited. For example, they can be completely aligned, meaning the edges of the first sheet 110 and the second sheet 111 completely overlap, forming a neatly stacked structure that allows for more even stress distribution during winding or gathering. Alternatively, they can be partially aligned, where the edge of one sheet extends beyond the edge of the other sheet by a certain length, and the extended portion can serve a fixing function during winding.

[0070] The first sheet 110 and the second sheet 111 are stacked along the thickness direction, which increases the contact area between them. During the winding or gathering process, the friction between them is greater, the bonding is tighter, and the possibility of relative sliding or separation during use is reduced, thus improving the structural stability of the matrix segment 11. By adjusting the stacking method and the combination of sheets, the overall performance of the matrix segment 11 can be changed more flexibly.

[0071] Here, the functional structure of the second sheet 111 is not limited.

[0072] For example, the second sheet 111 can function the same as the first sheet 110, capable of generating an aerosol by heating.

[0073] For example, the second sheet 111 can also be used to assist in supporting the first sheet 110 in order to improve the overall structural strength of the matrix segment 11.

[0074] For example, the second sheet 111 can also be used as packaging material, wrapped around the outer surface of the first sheet 110, to provide protection and moisture protection.

[0075] Here, the first sheet 110 can be a one-piece structure, that is, the first sheet 110 is an integral structure, which is beneficial to improve the integrity of the first sheet 110, thereby improving the stability of the first sheet 110.

[0076] Here, the number of substrate strips 112 is not limited; for example, it can be one, two, or more.

[0077] The formation of at least a partial 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 between some matrix strips 112, and multiple connection regions 113 may be formed between other matrix strips 112.

[0078] Here, the connecting regions 113 formed between the matrix strips 112 can be the same or different.

[0079] It should be noted that the specific location of the connecting area 113 is not restricted here.

[0080] In an embodiment where a connecting region 113 is formed between adjacent matrix strips 112, the connecting region 113 may be formed at the end, middle, or between the end and middle of the matrix strip 112; in an embodiment where multiple connecting regions 113 are formed between adjacent matrix strips 112, the multiple connecting regions 113 may be uniformly distributed or not uniformly distributed. For example, the first sheet 110 may be cut into multiple matrix strips 112 by pressing or rolling with a cutter or a die, 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.

[0081] 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 break between adjacent matrix strips 112. For example, the matrix strips 112 are formed by outward protrusion of a portion of the surface of an aerosol sheet, and a depression is formed between adjacent protrusions, at least a portion of the depression constitutes the connecting region 113. The first sheet 110 is pressed with a mold or roller, so that multiple protruding strips, i.e., matrix strips 112, are formed on at least one side of the first sheet 110, as shown in FIG16. A groove is formed between adjacent matrix strips 112, and the bottom area of ​​the groove constitutes the connecting region 113. Of course, it is understood that the groove formed by pressing may also be discontinuous in some embodiments.

[0082] For example, adjacent matrix strips 112 are connected by a connecting region 113, the two ends of which extend to the two ends of the extending direction of the matrix strip 112. The dimension of the connecting region 113 in the thickness direction of the aerosol sheet is smaller than the maximum dimension of the matrix strip 112 in the thickness direction of the aerosol sheet. For example, the thickness of the bottom wall of the groove is smaller than the maximum dimension of the matrix strip 112 in the same direction as the bottom wall thickness.

[0083] 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.

[0084] 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.

[0085] In this embodiment of the present disclosure, adjacent matrix strips 112 can be connected together through the connecting area 113, which is beneficial to improving the integrity and overall strength of the first sheet 110, can improve the situation of matrix strips 112 breaking and falling off, and is beneficial to improving the amount of smoke, suction stability and yield.

[0086] 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.

[0087] The aerosol sheet of this embodiment is formed by cutting the first sheet 110 of the aerosol sheet into multiple matrix strips 112. After the aerosol sheet is wound or gathered to form matrix segments 11, a stable airflow channel 114 can be formed between adjacent matrix strips 112, reducing suction resistance and improving its stability. The suction resistance of the matrix segments 11 can also be adjusted by regulating the density, porosity, and size of the matrix strips 112. Furthermore, by forming at least one connecting region 113 between adjacent matrix strips 112, the adjacent matrix strips 112 can be connected together through the connecting region 113. This improves the integrity and overall strength of the first sheet 110, reducing displacement and breakage caused by vibration, bending, pressure, etc., during transportation, storage, or use. This further improves the stability of the suction resistance and reduces the likelihood of matrix strips 112 breaking and falling off, thus improving smoke volume, suction stability, and yield. In addition, the matrix strips 112 are a homogeneous system, which is beneficial for the continuous and uniform generation of aerosol. It should be noted that the airflow channels 114 in Figures 18, 19, and 20 are merely a prominent structural representation and do not constitute a limitation on the size and proportion of the airflow channels 114. There are multiple airflow channels 114 in the matrix segment 11, and these multiple airflow channels 114 are arranged approximately in parallel. Due to the compression that occurs during the molding process of the matrix segment 11, in some embodiments, some airflow channels 114 have varying diameters; that is, the dimensions of the airflow channels 114 change along the length of the matrix segment 11 and are not consistent.

[0088] The matrix segment 11 formed above, under the premise of ensuring sufficient load, is conducive to achieving low suction resistance, and the release of aerosol after heating can achieve high burst and stable transmission. Combined with the suction resistance of the aerosol generating product 10 being greater than or equal to 20 mm water column and less than or equal to 50 mm water column, as well as the suction resistance of the second functional segment 14, the overall performance advantage of the aerosol generating product 10 is guaranteed.

[0089] In some embodiments, the thickness of at least a portion of the connecting region 113 is less than the maximum dimension of the matrix strip 112 along the thickness direction of the aerosol sheet.

[0090] Here, the thickness of all the connecting areas 113 may be less than the maximum dimension of the matrix strip 112 along the thickness direction of the aerosol sheet, or the thickness of some of the connecting areas 113 may be less than the maximum dimension of the matrix strip 112 along the thickness direction of the aerosol sheet, while the thickness of another part of the connecting areas 113 may be equal to the maximum dimension of the matrix strip 112 along the thickness direction of the aerosol sheet.

[0091] In this embodiment, by making the thickness of at least part of the connecting area 113 less than the maximum dimension of the matrix strip 112 along the thickness direction of the aerosol sheet, a stable airflow channel 114 can be formed at the connecting area 113 after the aerosol sheet is wound to form the matrix segment 11, and the strength of the connecting area 113 can also be strengthened, thereby improving the stability of the suction resistance and the integrity of the aerosol sheet.

[0092] In some embodiments, the substrate strip 112 is constructed by pressing and cutting a second sheet 111, and a groove is formed between adjacent substrate strips 112, with a portion of the bottom wall of the groove forming a connecting region 113.

[0093] For example, as shown in Figures 2 and 16, the second sheet 111 can be cut or pressed by a mold to form an uneven surface on the surface of the second sheet 111. Here, the protruding area is the matrix strip 112 and the recessed area is the groove.

[0094] For example, the matrix strip 112 extends along a first direction.

[0095] In some embodiments, referring to Figures 2 and 16, the cutting direction of the second sheet 111 includes a second direction.

[0096] Here, the continuous lines or dashed lines inside the second sheet 111 in Figure 2 represent the cutting lines of the second sheet 111, and the breaks in the dashed lines represent the connecting areas 113.

[0097] Here, the second sheet 111 can be cut only along the second direction, or it can be cut along other directions in addition to the second direction.

[0098] In some embodiments, as shown in Figure 2, the first direction is parallel to the second direction.

[0099] In other words, the extension direction of the substrate strip 112 is parallel to the cutting direction of the second sheet 111.

[0100] Here, the extension direction of the substrate strip 112 and the cutting direction of the second sheet 111 can be approximately parallel or completely parallel.

[0101] In some embodiments, as shown in Figure 16, the first direction intersects with the second direction.

[0102] Here, the extension direction of the substrate strip 112 intersects the cutting direction of the second sheet 111. That is, the extension direction of the substrate strip 112 is not parallel to the cutting direction of the second sheet 111. For example, the extension direction of the substrate strip 112 is perpendicular to the cutting direction of the second sheet 111.

[0103] Of course, in other embodiments, the second sheet 111 includes multiple cutting directions. For example, the second 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.

[0104] In some embodiments, the extension trajectory of the pressure groove is a straight line or a curve.

[0105] In other words, the cutting direction of the second sheet 111 can be curved, such as S-shaped, spiral, or straight.

[0106] By making the equivalent diameter of some substrate strips 112 less than 1 mm and the equivalent diameter of other substrate strips 112 in the range of 1 mm to 3 mm, the cross-sectional dimensions of some substrate strips 112 can be different from those of other substrate strips 112 to adapt to different heating environments.

[0107] In related technologies, the matrix segment generates aerosols through heating with a heating element. The matrix units of the matrix segment mainly have the morphology of sheet-like, granular, and porous columnar forms. These matrix unit morphologies have relatively uniform density, making it difficult to design specific structures and performances based on different heating methods or the characteristics of different heating elements. For example, when heating the matrix segment using a peripheral heating method, the heat diffuses radially from the outside to the inside, resulting in a temperature gradient of "hot outside, cold inside." However, when using a uniform matrix segment with the aforementioned morphology for peripheral heating, the central matrix is ​​prone to underheating, resulting in a lower temperature and less release of effective substances, while the outer matrix is ​​overheated and carbonized, leading to an increase in the release of harmful components. As another example, when heating the matrix segment using a central heating method, the center of the matrix segment is in direct contact with the heat source, and the heat diffuses from the inside to the outside, resulting in a temperature gradient of "hot inside, cold outside." The matrix at a slightly farther distance from the heating center experiences a more significant temperature drop, and the amount of aerosol generated also decreases significantly. Therefore, the matrix segment in the related technology is characterized by uneven aerosol release during heating.

[0108] For the same type of aerosol generating matrix, when the matrix density is high and the diameter is large, the effective substance loading is high, the internal porosity of the matrix is ​​low, and the thermal diffusion efficiency during heating is poor, resulting in limited aerosol generation in the early stage of suction, but sufficient aerosol generation in the middle and later stages, and sufficient release of effective substances. When the matrix density is low and the diameter is small, the effective substance loading is low, the internal porosity of the matrix is ​​high, and the thermal diffusion efficiency during heating is good, resulting in sufficient aerosol generation in the early stage of suction, but a significant decrease in aerosol generation in the middle and later stages. The two different density matrices have obvious advantages and disadvantages.

[0109] When the matrix segment is adapted to appliances with different heating methods, such as peripheral heating or center heating, the uniformity of matrix density and diameter leads to differences in the release of effective substances in different heating areas, resulting in poor consistency.

[0110] The matrix segment 11 provided in this disclosure is constructed by winding or aggregating a first sheet 110 and a second sheet 111. This structure improves the overall integrity and structural strength of the matrix segment 11. The molding process of the matrix segment 11 is simple and also facilitates assembly manufacturing. Since the matrix segment 11 is formed by winding or aggregating the first sheet 110 and the second sheet 111, it is not formed by a single structure. The internal structure of the matrix segment 11 can be unevenly distributed. Therefore, by changing the first sheet 110 and the second sheet 111, the effect of aerosol release in different areas of the matrix segment 11 can be adjusted to adapt to the temperature distribution characteristics of different heating methods. This allows the matrix segment 11 to release aerosols uniformly, which is beneficial to improving the stability of aerosol generation by the matrix segment 11.

[0111] In some embodiments, referring to Figures 2 and 16, the second sheet 111 contains an aerosol-generating material.

[0112] Here, the second sheet 111 contains aerosol generating material, that is, the second sheet 111 can also serve as a substrate in the matrix segment 11 and generate aerosol together with the first sheet 110.

[0113] In some embodiments, the thickness of the second sheet 111 is less than the maximum thickness of the first sheet 110.

[0114] Here, the number of the first sheet 110 and / or the second sheet 111 is not limited; for example, it can be one sheet, or two or more sheets.

[0115] Understandably, sheet thickness affects heat transfer speed. A thicker sheet contains a greater total amount of effective material, resulting in a higher specific heat capacity and a longer heat conduction distance from the outside to the inside, thus extending the internal heating time and allowing for a more complete and stable release of aerosols in the later stages of heating. Conversely, a thinner sheet contains a smaller total amount of effective material, resulting in a lower specific heat capacity and a shorter heat conduction path, enabling rapid migration of effective components during heating.

[0116] In other words, during heating, thicker sheets require more heat to reach the same temperature, resulting in a slower heating rate and a more sustained aerosol release. Conversely, thinner sheets heat up faster after absorbing heat and release aerosols more quickly. Therefore, different sheet thicknesses can be used to correspond to the different temperature characteristics of different heating methods. For example, thicker sheets can be used in high-temperature areas, and thinner sheets in low-temperature areas. Thicker sheets can release aerosols for a longer period at high temperatures, while at low temperatures, the rapid aerosol release characteristic of thinner sheets can be mitigated, allowing for a longer aerosol release as well. Thus, by combining sheets of different thicknesses, the stability of aerosol release during heating can be improved.

[0117] Here, the thickness of the second sheet 111 is less than the maximum thickness of the first sheet 110. That is to say, the thickness of the second sheet 111 at any position (including the maximum thickness) is less than the maximum thickness of the first sheet 110.

[0118] For example, the first sheet 110 and the second sheet 111 have uniform thicknesses, and the thickness of the second sheet 111 is less than the thickness of the first sheet 110.

[0119] For example, the thickness of the first sheet 110 and the second sheet 111 is not uniform, and the thickness of the second sheet 111 at any position is less than the minimum thickness of the first sheet 110.

[0120] For example, the thickness of the first sheet 110 and the second sheet 111 is not uniform. The thickness of the second sheet 111 at some locations is greater than the thickness of the first sheet 110 at some locations, but the thickness of the second sheet 111 at any location is less than the maximum thickness of the first sheet 110.

[0121] In this embodiment, by setting the thickness of the second sheet 111 to be less than the maximum thickness of the first sheet 110, the first sheet 110 and the second sheet 111 are wound or gathered together to form an uneven internal structure of the matrix segment 11. The effect of aerosol release when heated in different areas of the matrix segment 11 can be adjusted by changing the thickness of the first sheet 110 and the second sheet 111, so as to adapt to the temperature distribution characteristics of different heating methods.

[0122] For example, in the peripheral heating method, a thicker first sheet 110 can be placed near the outer ring. The heat transfer rate is slowed down at the first sheet 110, allowing the thicker first sheet 110 to release aerosols continuously at a higher temperature. Meanwhile, a thinner second sheet 111 is placed near the inner ring, allowing the thinner second sheet 111 to also release aerosols continuously at a lower temperature. In this way, the matrix segment 11 can release aerosols uniformly as a whole, which helps to improve the stability of aerosol generation in the matrix segment 11.

[0123] For example, in the central heating mode, a thicker first sheet 110 can be placed near the inner ring. The heat transfer rate is slowed down at the first sheet 110, allowing the thicker first sheet 110 to release aerosols continuously at a higher temperature. Meanwhile, a thinner second sheet 111 is placed near the outer ring, allowing the thinner second sheet 111 to also release aerosols continuously at a lower temperature. In this way, the matrix segment 11 can release aerosols uniformly throughout, which helps to improve the stability of aerosol generation in the matrix segment 11.

[0124] In some embodiments, the density of the second sheet 111 is less than the density of the first sheet 110.

[0125] Understandably, density affects the aerosol generation effect during matrix heating. Higher-density matrices have a more compact internal structure with fewer pores, resulting in a higher effective substance loading; lower-density matrices have a more porous internal structure with more pores, resulting in a lower effective substance loading. Higher-density matrices require more heat to reach the desired temperature, making them suitable for sustained aerosol release; lower-density matrices heat up faster and respond quickly to the heating process. In other words, during heating, higher-density matrices need to absorb more heat to reach the same temperature, resulting in a slower heating rate and a more sustained aerosol release; while lower-density matrices, due to their lower specific heat capacity, heat up faster after absorbing heat and release aerosols more quickly.

[0126] In this embodiment, by setting the density of the second sheet 111 to be less than the maximum density of the first sheet 110, the first sheet 110 and the second sheet 111 are wound or gathered together to form an uneven internal structure of the matrix segment 11. The effect of aerosol release when heated in different areas of the matrix segment 11 can be adjusted by changing the density of the first sheet 110 and the second sheet 111, so as to adapt to the temperature distribution characteristics of different heating methods.

[0127] For example, in the peripheral heating method, a first sheet 110 with a higher density can be placed near the outer ring. The heat transfer rate is slowed down at the first sheet 110, allowing the higher-density first sheet 110 to release aerosols continuously at a higher temperature. At the same time, a second sheet 111 with a lower density is placed near the inner ring, allowing the lower-density second sheet 111 to also release aerosols continuously at a lower temperature. In this way, the matrix segment 11 can release aerosols uniformly as a whole, which is beneficial to improving the stability of aerosol generation in the matrix segment 11.

[0128] For example, in the central heating method, a first sheet 110 with a higher density can be placed near the inner ring. The heat transfer rate is slowed down at the first sheet 110, allowing the higher-density first sheet 110 to release aerosols continuously at a higher temperature. At the same time, a second sheet 111 with a lower density is placed near the outer ring, allowing the lower-density second sheet 111 to also release aerosols continuously at a lower temperature. In this way, the matrix segment 11 can release aerosols uniformly as a whole, which is beneficial to improving the stability of aerosol generation in the matrix segment 11.

[0129] For example, the matrix strips 112 of the first sheet 110 are of equal size and density, the matrix strips 112 of the second sheet 111 are of equal size and density, and the matrix strips 112 of the first sheet 110 and the second sheet 111 are of equal size but not of equal density.

[0130] For example, the matrix strips 112 of the first sheet 110 are of equal size and density, the matrix strips 112 of the second sheet 111 are of equal size and density, and the matrix strips 112 of the first sheet 110 and the second sheet 111 are of equal density but not of equal size.

[0131] For example, the matrix strips 112 in the first sheet 110 and / or the second sheet 111 are not of equal size.

[0132] For example, the matrix strips 112 in the first sheet 110 and / or the second sheet 111 are not of equal density.

[0133] In some embodiments, the thermal conductivity of the second sheet 111 is less than that of the first sheet 110.

[0134] Understandably, thermal conductivity affects the aerosol generation effect when the substrate is heated. A substrate with higher thermal conductivity conducts heat better, resulting in faster aerosol release; conversely, a substrate with lower thermal conductivity conducts heat poorly, leading to slower aerosol release. In other words, during heating, a substrate with higher thermal conductivity heats up more slowly and releases aerosols faster; while a substrate with lower thermal conductivity absorbs heat and heats up more slowly, resulting in a more sustained aerosol release.

[0135] In this embodiment, by setting the thermal conductivity of the second sheet 111 to be less than the maximum thermal conductivity of the first sheet 110, the structure inside the matrix segment 11 formed by the first sheet 110 and the second sheet 111 being rolled or gathered is not uniform. The effect of aerosol release when heated in different areas of the matrix segment 11 can be adjusted by changing the thermal conductivity of the first sheet 110 and the second sheet 111, so as to adapt to the temperature distribution characteristics of different heating methods.

[0136] For example, in the peripheral heating method, a second sheet 111 with a lower thermal conductivity can be placed near the outer ring. The heat transfer rate at the second sheet 111 is slowed down, allowing the second sheet 111 with a lower thermal conductivity to release aerosols continuously at a higher temperature. At the same time, a first sheet 110 with a higher thermal conductivity is placed near the inner ring, allowing the first sheet 110 with a higher thermal conductivity to release aerosols continuously at a lower temperature. In this way, the matrix segment 11 can release aerosols uniformly as a whole, which is beneficial to improving the stability of aerosol generation in the matrix segment 11.

[0137] For example, in the center heating method, the second sheet 111 with a lower thermal conductivity can be placed near the inner ring. The heat transfer rate at the second sheet 111 is slowed down, allowing the second sheet 111 with a lower thermal conductivity to release aerosols continuously at a higher temperature. At the same time, the first sheet 110 with a higher thermal conductivity is placed near the outer ring, allowing the first sheet 110 with a higher thermal conductivity to release aerosols continuously at a lower temperature. In this way, the matrix segment 11 can release aerosols uniformly as a whole, which is beneficial to improving the stability of aerosol generation in the matrix segment 11.

[0138] It should be added that, when adjusting the aerosol generation effect, the first sheet 110 and the second sheet 111 can adjust one or more of the following: thickness, density, and thermal conductivity, in order to achieve the adjustment effect.

[0139] In some embodiments, referring to FIG2, the second sheet 111 includes a plurality of parallel and spaced matrix strips 112, and at least one connecting region 113 is formed between adjacent matrix strips 112, the connecting region 113 connecting adjacent matrix strips 112.

[0140] Here, the structure of the second sheet 111 is similar to that of the first sheet 110. Both consist of multiple parallel and spaced matrix strips 112, and at least one connecting region 113 is formed between adjacent matrix strips 112. The connecting region 113 connects adjacent matrix strips 112. The specific structure is described above and will not be repeated here.

[0141] In the above embodiments, the thickness settings of the first sheet 110 and / or the second sheet 111 can be achieved by changing the thickness of the matrix strip 112.

[0142] Similarly, the density and thermal conductivity of the first sheet 110 and / or the second sheet 111 can also be achieved by changing the material of the matrix strip 112.

[0143] In this embodiment, the second sheet 111 includes multiple parallel and spaced matrix strips 112. Adjacent matrix strips 112 can be connected together through connecting areas 113, which helps improve the integrity and overall strength of the second sheet 111. This helps reduce displacement and breakage caused by vibration, bending, pressure, etc. during transportation, storage, or use, thereby further improving the stability of the suction resistance. At the same time, it can also improve the situation of matrix strips 112 breaking and falling off, which is beneficial to improving the amount of smoke, suction stability, and yield. In addition, the matrix strips 112 are a homogeneous system, which is conducive to the continuous and uniform generation of aerosol.

[0144] In some embodiments, referring to FIG5, at least a portion of the matrix strip 112 of the first sheet 110 corresponds to at least a portion of the connecting region 113 of the second sheet 111.

[0145] Here, correspondingly, along the thickness direction of the sheets, at least a portion of the matrix strip 112 of the first sheet 110 is aligned and overlapped with at least a portion of the connecting area 113 of the second sheet 111. That is, when the first sheet 110 and the second sheet 111 are stacked, a portion of the matrix strip 112 of the first sheet 110 is located exactly above or below the corresponding connecting area 113 of the second sheet 111.

[0146] For example, the correspondence can be a perfectly precise alignment, that is, the edge of the matrix strip 112 of the first sheet 110 completely coincides with the edge of the connecting area 113 of the second sheet 111.

[0147] For example, the correspondence can also be partially overlapping, such as a part of the matrix strip 112 being within the connection area 113 of the second sheet 111, and another part extending beyond the connection area 113, which can be adjusted according to actual heating requirements and structural stability requirements.

[0148] In this embodiment, the matrix strip 112 of the first sheet 110 corresponds to the connection area 113 of the second sheet 111, so that the matrix strip 112 of the first sheet 110 can fill the gap in the connection area 113 of the second sheet 111. The matrix strip 112 of the first sheet 110 and the second sheet 111 are nested together and support each other, which can reduce the deformation and displacement of the matrix strip 112 due to force or temperature changes, and is conducive to improving the structural stability of the entire matrix segment 11.

[0149] In some embodiments, referring to FIG4, at least a portion of the matrix strip 112 of the first sheet 110 corresponds to at least a portion of the matrix strip 112 of the second sheet 111, and at least a portion of the connecting region 113 of the first sheet 110 corresponds to at least a portion of the connecting region 113 of the second sheet 111.

[0150] Here, correspondingly, along the thickness direction of the sheets, at least a portion of the matrix strip 112 of the first sheet 110 and at least a portion of the matrix strip 112 of the second sheet 111 are aligned, overlapped, or specifically associated with each other in position; at the same time, at least a portion of the connecting region 113 of the first sheet 110 and at least a portion of the connecting region 113 of the second sheet 111 also have such a positional relationship. That is to say, these structures are matched in position in the vertical direction when stacked.

[0151] For example, all the matrix strips 112 of the first sheet 110 can correspond one-to-one with all the matrix strips 112 of the second sheet 111, and all the connecting areas 113 also correspond one-to-one, forming a completely corresponding structure.

[0152] For example, a partial cross-correspondence can be adopted, such that a portion of the matrix strip 112 of the first sheet 110 corresponds to the matrix strip 112 of the second sheet 111, and another portion of the matrix strip 112 corresponds to the connecting area 113 of the second sheet 111. The connecting area 113 is also subject to a similar cross-correspondence to adapt to different heating and structural requirements.

[0153] For example, the corresponding substrate strips 112 can be designed to be the same in width and length to achieve precise matching; or they can be designed to be of different sizes, such as the first sheet 110 having a slightly wider substrate strip 112 and the second sheet 111 having a slightly narrower corresponding substrate strip 112.

[0154] For example, some corresponding structures may be slightly misaligned. For instance, the matrix strip 112 may be slightly offset in the length direction, and the connecting region 113 may be slightly misaligned in the width direction.

[0155] In this embodiment, the corresponding substrate strips 112 can simultaneously receive heat, and due to their corresponding positions, the heat transfer path in the two sheets is more consistent. In addition, ventilation gaps can be formed between the substrate strips 112 and between the connecting area 113 and the connecting area. Heat and airflow flow through the gaps, which is conducive to the uniform transfer of heat between layers, making the heating of the entire substrate section 11 more uniform, the aerosol generation more stable, and the taste more consistent.

[0156] In some embodiments, please refer to FIG3, the aerosol generating material of the first sheet 110 is different from the aerosol generating material of the second sheet 111. Here, different cross-sectional lines in FIG3 represent different matrix strips 112.

[0157] The specific composition of aerosol-generating materials is not limited here. For example, aerosol-generating materials include plant components, auxiliary components, smoke-generating components, and adhesive components.

[0158] In some embodiments, the plant-based ingredients are one or more combinations of powders formed from crushed tobacco leaves, tobacco fragments, tobacco stems, tobacco dust, and aromatic plants. The plant-based ingredients are the core source of the product's aroma. Endogenous substances in the plant-based ingredients, such as nicotine, enter the bloodstream through atomization, promoting the pituitary gland to produce dopamine, thereby generating a sense of physiological satisfaction.

[0159] In some embodiments, the auxiliary components may be one or more combinations of inorganic fillers, lubricants, and emulsifiers. The inorganic fillers include one or more combinations of heavy calcium carbonate, light calcium carbonate, zeolite, attapulgite, talc, and diatomaceous earth. The inorganic fillers provide skeletal support for the plant components, and their micropores increase the porosity of the wall material after molding, thereby improving the aerosol release rate.

[0160] Lubricants include one or more of the following: candelilla wax, carnauba wax, shellac, sunflower wax, rice bran, beeswax, stearic acid, and palmitic acid. Lubricants can increase the flowability of particles, reduce friction between particles, result in a more uniform overall particle density, and also reduce the pressure required for mold forming, thus reducing mold wear.

[0161] Emulsifiers include one or more combinations of polyglycerol fatty acid esters, Tween-80, and polyvinyl alcohol. Emulsifiers can, to some extent, slow down the loss of flavor substances during storage, increase the stability of flavor substances, and improve the sensory quality of the product. Emulsifiers (also known as surfactants) can reduce the interfacial tension between water-soluble and water-insoluble components in a mixture, and form a more robust film on the surface of microdroplets or an electric double layer on the surface of microdroplets due to the charge given by the emulsifier, preventing microdroplets from agglomerating and maintaining a homogeneous emulsion. Homogenizing two immiscible components through emulsification can improve the consistency of product quality.

[0162] The function of the smoke-generating agent is to produce a large amount of vapor upon heating, thereby increasing the amount of smoke in the smoke-generating product. In some embodiments, the smoke-generating agent may include, for example, one or more combinations of: monohydric alcohols (such as menthol); polyhydric alcohols (such as propylene glycol, triethylene glycol, 1,3-butanediol, and glycerol); esters of polyhydric alcohols (such as glyceryl monoacetate, glyceryl diacetate, or glyceryl triacetate); monocarboxylic acids; polycarboxylic acids (such as lauric acid, myristic acid) or aliphatic esters of polycarboxylic acids (such as dimethyl dodecanoate, dimethyl tetradecanoate, erythritol, 1,3-butanediol, tetraethylene glycol, triethyl citrate, propylene carbonate, ethyl lauryl acetate, triacetin, mesoerythritol, a mixture of diacetic acid esters, diethyl caprylate, triethyl citrate, methyl benzoate, phenylacetic acid methyl ester, ethyl vanillate, glyceryl tributate, and lauryl acetate).

[0163] In some embodiments, the adhesive component is a natural plant extract, a non-ionic modified viscous polysaccharide, including one or more combinations of tamarind polysaccharide, pullulan polysaccharide, seaweed polysaccharide, locust bean gum, guar gum, and xyloglucan. The adhesive achieves close contact with the component materials of the product through wetting at the interface, generating intermolecular attraction, thereby binding the powder, liquid, etc., components together. Furthermore, the use of a natural plant extract and a non-ionic adhesive avoids the release of harmful substances such as methanol, formaldehyde, and acrolein that can occur with colloidal modification, thus improving the safety of the product.

[0164] Here, the aerosol generating material of the first sheet 110 is different from the aerosol generating material of the second sheet 111. It may be that the types of materials are different, or that the materials have the same composition but different proportions. This is not limited here.

[0165] In this embodiment, by setting material differences, different materials can be combined. Different materials have different volatilization rates and release characteristics during the heating process. By selecting different materials with synergistic effects, the flavor and concentration of aerosols can be dynamically changed, avoiding monotony in flavor, enhancing the layering of inhalation, and improving the aerosol generation effect.

[0166] In some embodiments, please refer to FIG3, in the first sheet 110, some matrix strips 112 are different from other matrix strips 112.

[0167] The difference here may be that some matrix strips 112 differ from other matrix strips 112 in the first sheet 110 in at least one aspect of aerosol generating material, size, shape, physical properties (such as thickness, density, thermal conductivity, etc.).

[0168] The following explanation will be based on the first sheet 110.

[0169] In some embodiments, referring to Figures 6 to 11, in the first sheet 110, at least some of the matrix strips 112 have cross-sectional dimensions different from those of the other matrix strips 112.

[0170] Understandably, assuming the same material and length of matrix strip 112, the cross-sectional size affects the volume of matrix strip 112. A larger cross-sectional size results in a larger volume of matrix strip 112, containing a greater total effective substance load, and thus a higher specific heat capacity. This leads to a longer heat conduction distance from the outside to the inside, extending the internal heating time and allowing for a more complete and stable release of aerosols in the later stages of heating. Conversely, a smaller cross-sectional size results in a smaller volume of matrix strip 112, containing a smaller total effective substance load, and a lower specific heat capacity. Furthermore, the heat conduction path is shorter, enabling rapid migration of active ingredients during heating.

[0171] In other words, during heating, the matrix strip 112 with a larger cross-sectional size needs to absorb more heat to reach the same temperature, resulting in a slower heating rate and a more sustained aerosol release. Conversely, the matrix strip 112 with a smaller cross-sectional size heats up faster after absorbing heat, releasing aerosols more quickly. Therefore, matrix strips 112 with different cross-sectional sizes can be used to correspond to the different temperature characteristics of different heating methods. For example, a large cross-sectional matrix strip 112 can be used in high-temperature areas, while a small cross-sectional matrix strip 112 can be used in low-temperature areas. The large cross-sectional matrix strip 112 can release aerosols for a longer period at high temperatures, while at low temperatures, the rapid aerosol release characteristic of the small cross-sectional matrix strip 112 can be mitigated, allowing for a longer aerosol release as well. Thus, by combining matrix strips 112 with different cross-sectional sizes, the stability of aerosol release during heating can be improved. Furthermore, the use of matrix strips 112 with different cross-sectional sizes increases the porosity within the matrix, facilitating airflow within the matrix section 11 and further increasing the amount of smoke.

[0172] For example, in the peripheral heating method, the cross-sectional size of the substrate strip 112 located near the outer ring can be set to be larger. The heat transfer rate is slowed at the larger cross-sectional size of the substrate strip 112, allowing it to continuously release aerosols at higher temperatures. Simultaneously, the cross-sectional size of the substrate strip 112 located near the inner ring can be set to be smaller, allowing it to continuously release aerosols at lower temperatures. In this way, the entire substrate segment 11 can release aerosols uniformly, which is beneficial for improving the stability of aerosol generation by the substrate segment 11.

[0173] For example, in the center heating mode, the cross-sectional size of the substrate strip 112 located near the inner ring can be set to be larger. The heat transfer rate at the large cross-sectional size of the substrate strip 112 is slowed down, allowing the large cross-sectional size substrate strip 112 near the inner ring to continuously release aerosols at higher temperatures. Simultaneously, the cross-sectional size of the substrate strip 112 located near the outer ring can be set to be smaller, allowing the small cross-sectional size substrate strip 112 near the outer ring to continuously release aerosols at lower temperatures. Thus, the entire substrate segment 11 can release aerosols uniformly, which is beneficial for improving the stability of aerosol generation in the substrate segment 11. For example, referring to Figure 8, the first sheet 110 has a beginning end and an end end in the winding direction of the substrate segment 11. Along the direction from the beginning end to the end end, the cross-sectional size of at least a portion of the substrate strip 112 near the beginning end is smaller than the cross-sectional size of at least a portion of the substrate strip 112 near the end end.

[0174] For example, referring to FIG9, the first sheet 110 has a beginning end and an end end in the winding direction of the matrix segment 11, and the cross-sectional dimension of at least a portion of the matrix strip 112 near the beginning end is larger than the cross-sectional dimension of at least a portion of the matrix strip 112 near the end end in the direction from the beginning end to the end end.

[0175] For example, referring to FIG11, the first sheet 110 has a beginning and an end in the winding direction of the matrix segment 11, and the cross-sectional dimensions of each matrix strip 112 first decrease and then increase along the direction from the beginning to the end.

[0176] For example, referring to FIG10, the first sheet 110 has a beginning and an end in the winding direction of the matrix segment 11, and the cross-sectional dimensions of each matrix strip 112 first increase and then decrease along the direction from the beginning to the end.

[0177] In some embodiments, at least some of the matrix strips 112 have a cross-sectional shape that differs from the cross-sectional shape of the other matrix strips 112.

[0178] It is understandable that, given the same material and the same length of the substrate strip 112, different cross-sectional shapes will affect the ventilation effect and thermal contact area of ​​the substrate strip 112, thereby affecting its specific heat capacity during the heating process. The specific cross-sectional shape of the substrate strip 112 is not limited here.

[0179] For example, in the matrix strip 112 with a solid cross-section, the thermal contact area of ​​the matrix strip 112 is relatively small, the heat transfer is slower, and the aerosol can be released more persistently when heated.

[0180] For example, in the matrix strip 112 with a hollow area in the cross section, the thermal contact area of ​​the matrix strip 112 is relatively large, and the airflow is good, the heat transfer is fast, and the aerosol is released quickly when heated.

[0181] Similarly, depending on the different temperature characteristics of different heating methods, matrix strips 112 with different cross-sectional shapes can be set. For example, matrix strips 112 with cross-sectional shapes that are conducive to the long-term release of aerosols can be set in places with high temperatures, while matrix strips 112 with a faster aerosol release rate when heated can be set in places with low temperatures, so that matrix segments 11 can release aerosols uniformly and for a long time.

[0182] In some embodiments, please refer to FIG1, at least some of the matrix strips 112 have a different density than the other matrix strips 112. The cross-sectional lines of different densities in FIG1 represent the different densities of the different matrix strips 112.

[0183] Understandably, density affects the aerosol generation effect of the matrix strip 112 during heating. A higher density matrix strip 112 has a denser internal structure with fewer pores, resulting in a higher effective substance loading; a lower density matrix strip 112 has a looser internal structure with more pores, resulting in a lower effective substance loading. A higher density matrix strip 112 requires more heat to heat up, making it suitable for continuous aerosol release; a lower density matrix strip 112 heats up faster and can respond quickly to the heating process.

[0184] In other words, during heating, the denser matrix strip 112 needs to absorb more heat to reach the same temperature, resulting in a slower heating rate and a more sustained aerosol release. Conversely, the less dense matrix strip 112, due to its lower specific heat capacity, heats up faster after absorbing heat and releases aerosols more quickly. This allows for adaptation to the different temperature characteristics of different heating methods. Matrix strips 112 with varying densities can be used; for example, denser matrix strips 112 can be used in high-temperature areas, while less dense matrix strips 112 can be used in low-temperature areas. The denser matrix strip 112 can release aerosols for a longer period at high temperatures, while at low temperatures, the rapid aerosol release of the less dense matrix strip 112 can be mitigated, allowing for a longer aerosol release. This allows the matrix segment 11 to improve the stability of aerosol release during heating by adjusting the density of the matrix strips 112 under inconsistent heating methods, combining matrix strips 112 with different densities.

[0185] For example, in the peripheral heating method, the density of the matrix strips 112 near the outer ring can be set to be relatively high. The heat transfer rate is slowed at high temperatures in the high-density matrix strips 112, allowing them to continuously release aerosols at higher temperatures. Simultaneously, the density of the matrix strips 112 near the inner ring can be set to be relatively low, allowing them to continuously release aerosols even at lower temperatures. In this way, the matrix segment 11 can release aerosols uniformly throughout, which is beneficial for improving the stability of aerosol generation in the matrix segment 11.

[0186] For example, in the central heating mode, the density of the matrix strips 112 located near the inner ring can be set to be relatively high. The heat transfer rate is slowed at high temperatures in the high-density matrix strips 112, allowing them to continuously release aerosols at higher temperatures. Simultaneously, the density of the matrix strips 112 located near the outer ring can be set to be relatively low, allowing them to continuously release aerosols even at lower temperatures. In this way, the matrix segment 11 as a whole can release aerosols uniformly, which is beneficial for improving the stability of aerosol generation in the matrix segment 11.

[0187] For example, referring to FIG1, the first sheet 110 has a beginning end and an end end in the winding direction of the matrix segment 11, and the density of at least a portion of the matrix strip 112 near the beginning end is less than the density of at least a portion of the matrix strip 112 near the end end in the direction from the beginning end to the end end.

[0188] For example, the first sheet 110 has a beginning end and an end end in the winding direction of the matrix segment 11, and the density of at least a portion of the matrix strip 112 near the beginning end is greater than the density of at least a portion of the matrix strip 112 near the end end in the direction from the beginning end to the end end.

[0189] For example, the first sheet 110 has a beginning and an end in the winding direction of the matrix segment 11, and the density of each matrix strip 112 first decreases and then increases along the direction from the beginning to the end.

[0190] For example, the first sheet 110 has a beginning and an end in the winding direction of the matrix segment 11, and the density of each matrix strip 112 first increases and then decreases along the direction from the beginning to the end.

[0191] In some embodiments, the length of the substrate strip 112 is in the range of 8 mm to 20 mm.

[0192] The length of the substrate strip 112 can be any one of 8mm, 9mm, 10mm, 11mm, 12mm, 13mm, 14mm, 15mm, 16mm, 17mm, 18mm, 19mm, or 20mm, or any combination thereof.

[0193] The longer the matrix strip 112 is, the more effective substances (aerosol forming agents) it contains, and the greater the amount of smoke. The shorter the matrix strip 112 is, the more it is beneficial to improve the ease of use and production efficiency of the matrix strip 112. In addition, it can also reduce the possibility of matrix strip 112 breaking.

[0194] In this embodiment, by setting the length of the matrix strip 112 to be between 8mm and 20mm, the matrix strip 112 can have sufficient smoke volume, while also improving the ease of use and production efficiency of the matrix strip 112.

[0195] In some embodiments, the equivalent diameter of some matrix strips 112 is less than 1 mm, while the equivalent diameter of other matrix strips 112 is in the range of 1 mm to 3 mm.

[0196] The equivalent diameter of a portion of the matrix strip 112 can be a point value of any one of 0.1mm, 0.2mm, 0.3mm, 0.4mm, 0.5mm, 0.6mm, 0.7mm, 0.8mm, 0.9mm, or 1mm, or a point value between any two of them.

[0197] The equivalent diameter of other matrix strips 112 can be any one of the following: 1 mm, 1.2 mm, 1.3 mm, 1.5 mm, 1.6 mm, 1.7 mm, 1.8 mm, 1.9 mm, 2 mm, 2.2 mm, 2.3 mm, 2.5 mm, 2.6 mm, 2.7 mm, 2.8 mm, 2.9 mm, or 3 mm, or any value between two of them.

[0198] The equivalent diameter is the diameter calculated by equating an irregular object to a sphere or circle with the same specific properties.

[0199] Here, with a fixed equivalent diameter of the matrix segment 11, the larger the equivalent diameter of the matrix strip 112, the larger its cross-sectional size. Furthermore, with a fixed equivalent diameter of the matrix segment 11, a larger equivalent diameter of the matrix strip 112 results in greater structural strength, reducing the likelihood of breakage and lowering processing difficulty. Conversely, a smaller equivalent diameter of the matrix strip 112 leads to a greater number of matrix strips, further facilitating the formation of stable airflow channels 114 between adjacent matrix strips, thereby improving suction stability.

[0200] In some embodiments, some connection regions 113 are different from other connection regions 113.

[0201] The partial connection area 113 may differ from other connection areas 113 in the sheet in at least one aspect such as shape, size, material, thickness, and connection strength.

[0202] For example, the width of a portion of the connection area 113 is designed to be wider to enhance the stability of the substrate strip 112.

[0203] For example, some connection areas 113 are made of high-temperature resistant material, suitable for locations near the heating element, to avoid damage due to high temperature during heating; other connection areas 113 are made of ordinary material to reduce costs.

[0204] For example, some connection areas 113 are thicker to provide stronger connection strength for connecting the matrix strip 112, which carries a large amount of aerosol generating material and is heavier; other connection areas 113 are thinner to reduce the overall weight of the sheet while enhancing the flexibility of sheet manufacturing, winding, and gathering.

[0205] By differentiating the design of the connection areas 113 at different locations, the structural stability and heating effect of the sheet in certain areas can be adjusted. Simultaneously, conventional materials and smaller-sized connection areas 113 can be used in critical locations, while high-performance materials and appropriately sized connection areas 113 can be used in other critical locations. This reduces overall material costs while ensuring sheet performance. Furthermore, the different characteristics of the connection areas 113 allow the sheet to adapt to different processing methods, improving processing adaptability and efficiency.

[0206] In some embodiments, as shown in Figures 12 to 16, the spacing between at least some adjacent matrix strips 112 is different from the spacing between other adjacent matrix strips 112.

[0207] Here, the spacing between adjacent matrix strips 112 refers to the shortest distance from the edge of one matrix strip 112 to the edge of another adjacent matrix strip 112. The spacing reflects the width of the gap between the two matrix strips 112.

[0208] Understandably, the smaller the spacing between the matrix strips 112 and the denser the distribution of the matrix strips 112 on the first sheet 110, the longer the internal heating time of the first sheet 110 in this area can be extended, and the aerosol can be released sufficiently and stably in the later stage of heating. Correspondingly, the larger the spacing between the matrix strips 112 and the sparser the distribution of the matrix strips 112 on the first sheet 110, the faster the aerosol is released during the heating process.

[0209] In other words, during heating, the spacing between adjacent matrix strips 112 located at high temperatures can be reduced, making the first sheet 110 in that area more densely distributed, extending the internal heating time, and allowing for a more stable and sufficient release of aerosols in the later stages of heating. Conversely, the spacing between adjacent matrix strips 112 located at low temperatures can be increased, making the first sheet 110 in that area more sparsely distributed, thus reducing its rapid aerosol release rate during heating. In this way, even with inconsistent heating methods, the stability of aerosol release during heating can be improved by adjusting the spacing between adjacent matrix strips 112 and considering different spacing sizes between adjacent matrix strips 112.

[0210] For example, in the peripheral heating method, the matrix strips 112 near the outer ring can be densely arranged. The heat transfer rate at the second sheet 111 is slowed down, allowing the matrix strips 112 near the outer ring to continuously release aerosols at a higher temperature. At the same time, the matrix strips 112 near the inner ring can be dispersed, allowing them to continuously release aerosols at a lower temperature. In this way, the matrix segment 11 as a whole can release aerosols uniformly, which is beneficial to improving the stability of aerosol generation by the matrix segment 11.

[0211] For example, in the central heating mode, the matrix strips 112 near the inner ring can be densely arranged, and the heat transfer rate at the second sheet 111 is slowed down, allowing the matrix strips 112 near the inner ring to continuously release aerosols at a higher temperature. Meanwhile, the matrix strips 112 near the outer ring can be dispersed, allowing them to continuously release aerosols even at a lower temperature. In this way, the matrix segment 11 as a whole can release aerosols uniformly, which helps improve the stability of aerosol generation in the matrix segment 11.

[0212] For example, referring to FIG12, the first sheet 110 has a beginning end and an end end in the winding direction of the matrix segment 11, and the spacing dimension between at least a portion of the adjacent matrix strips 112 near the beginning end is smaller than the spacing dimension between at least a portion of the adjacent matrix strips 112 near the end end in the direction from the beginning end to the end end.

[0213] For example, referring to FIG13, the first sheet 110 has a beginning end and an end end in the winding direction of the matrix segment 11, and the spacing dimension between at least a portion of the adjacent matrix strips 112 near the beginning end is greater than the spacing dimension between at least a portion of the adjacent matrix strips 112 near the end end in the direction from the beginning end to the end end.

[0214] For example, referring to FIG15, the first sheet 110 has a beginning and an end in the winding direction of the matrix segment 11, and the spacing between each matrix strip 112 first decreases and then increases along the direction from the beginning to the end.

[0215] For example, referring to FIG14, the first sheet 110 has a beginning and an end in the winding direction of the matrix segment 11, and the spacing between each matrix strip 112 first increases and then decreases along the direction from the beginning to the end.

[0216] In some embodiments, the second sheet 111 is a paper sheet, non-woven fabric, or metal foil, and the matrix segment 11 is formed by winding the first sheet 110 and the second sheet 111 together after being stacked.

[0217] For example, the second sheet 111 is made of paper. The paper has a certain degree of flexibility, breathability and processability, which helps to improve the breathability of the second sheet 111 while reducing the production cost of the second sheet 111.

[0218] For example, the second sheet 111 is made of non-woven fabric. Non-woven fabric has the characteristics of being lightweight, breathable, and having high tensile strength, which helps to improve the breathability of the second sheet 111 while also improving the structural strength of the second sheet 111.

[0219] For example, the second sheet 111 is made of non-woven fabric. The metal foil has good thermal conductivity, sealing and ductility, can quickly transfer heat and is easy to shape, which is beneficial to improving the thermal conductivity of the second sheet 111.

[0220] Here, the matrix segment 11 is formed by winding together the first sheet 110 and the second sheet 111 after being stacked.

[0221] For example, the first sheet 110 and the second sheet 111 after being stacked are wound in a single layer, and the beginning and end of the first sheet 110 and the second sheet 111 after being stacked are connected end to end, forming a ring.

[0222] After the first sheet 110 and the second sheet 111 are stacked and wound to form the matrix segment 11, a stable airflow channel 114 can be formed in the center of the ring. This airflow channel 114 can be used for airflow when heated, which is beneficial to the generation of aerosols.

[0223] For example, the first sheet 110 and the second sheet 111 after being stacked have multiple layers. The first sheet 110 and the second sheet 111 after being stacked are spirally wound and wrapped from the inside out to form a compact cylinder.

[0224] The spiral winding of the aerosol sheet helps to improve the compactness and structural strength of the matrix segment 11, and facilitates the storage and transportation of the matrix segment 11.

[0225] In some embodiments, please refer to Figure 6 or Figure 7, the thickness of the second sheet 111 is less than or equal to 0.4 mm, and the maximum thickness of the first sheet 110 is in the range of 0.7 mm to 1.4 mm.

[0226] The thickness of the second sheet 111 can be any one of 0.1mm, 0.15mm, 0.2mm, 0.25mm, 0.3mm, 0.35mm, 0.4mm or any combination thereof.

[0227] The thickness of the first sheet 110 can be any one of 0.7mm, 0.75mm, 0.8mm, 0.85mm, 0.9mm, 0.95mm, 1.0mm, 1.05mm, 1.1mm, 1.15mm, 1.2mm, 1.25mm, 1.3mm, 1.35mm, or 1.4mm, or a value between any two of them.

[0228] In the above embodiments, the thickness of the second sheet 111 is explicitly defined as less than or equal to 0.4 mm, while the maximum thickness of the first sheet 110 is in the range of 0.7 mm to 1.4 mm, indicating that the thickest part of the first sheet 110 is much thicker than the second sheet 111. That is to say, a thicker first sheet 110 can be used in high-temperature environments, and a thinner second sheet 111 can be used in low-temperature environments. Through the combination of the first sheet 110 and the second sheet 111, the resulting matrix segment 11 can adapt to different heating environments, improving the stability of aerosol release during heating.

[0229] In some embodiments, the tensile strength of the second sheet 111 is greater than that of the first sheet 110 along the length of the matrix segment 11.

[0230] Tensile strength, also known as tensile strength or breaking strength, represents the breaking force per unit area.

[0231] Tensile strength is the maximum load that causes the sheet test piece to break from its original cross-section.

[0232] The measurement standard can be a horizontal tensile strength measuring instrument, with a test sample width of 15 mm and the thickness can be modified according to the actual thickness of the sample.

[0233] In some embodiments, the tensile strength of the first sheet 110 along the length of the matrix strips 112 is in the range of 400 N / m to 800 N / m.

[0234] The tensile strength of the first sheet 110 along the length of the matrix strips 112 can be, for example, a point value of any one of 400 N / m, 420 N / m, 440 N / m, 460 N / m, 480 N / m, 500 N / m, 520 N / m, 540 N / m, 560 N / m, 580 N / m, 600 N / m, 620 N / m, 640 N / m, 660 N / m, 680 N / m, 700 N / m, 720 N / m, 740 N / m, 760 N / m, 780 N / m, or 800 N / m, or a point value between any two of them.

[0235] Here, by setting the tensile strength of the second sheet 111 along the length of the matrix strip 112 to be greater than that of the first sheet 110, the second sheet 111 can wrap around the first sheet 110 to protect it. This improves the situation where the matrix strip 112 breaks and falls off, which is beneficial for increasing the amount of smoke, suction stability, and yield. In addition, the matrix segment 11 can be made into a homogeneous system, which is conducive to the continuous and uniform generation of aerosol.

[0236] In some embodiments, the volume ratio of the second sheet 111 to the first sheet 110 is in the range of 0.1 to 0.4.

[0237] The volume ratio refers to the proportional relationship between the volume of the second sheet 111 and the volume of the first sheet 110. The volume ratio of the second sheet 111 to the first sheet 110 is in the range of 0.1 to 0.4. For example, it can be any one of 0.1, 0.12, 0.14, 0.16, 0.18, 0.2, 0.22, 0.24, 0.26, 0.28, 0.3, 0.32, 0.34, 0.36, 0.38, 0.4 or any value between two of them.

[0238] In some embodiments, the matrix segment 11 is columnar, the second sheet 111 is wound or gathered at the center of the matrix segment 11 to form an inner core, and the first sheet 110 is wound around the outer periphery of the inner core.

[0239] The second sheet 111 is wound or gathered at the center of the matrix segment 11 to form an inner core. The inner core provides the basic shape for the first sheet 110 on the outer periphery to be wound. The first sheet 110 is wound along the outer periphery of the inner core.

[0240] The tightness of the winding or gathering of the second sheet 111 is not limited here.

[0241] For example, please refer to Figure 6. The second sheet 111 is tightly wound or gathered to form a compact inner core structure that can provide stronger support.

[0242] For example, the second sheet 111 is loosely wound or gathered to facilitate air circulation. The resulting inner core has many internal gaps, which also facilitates air circulation.

[0243] When the first sheet 110 is wound around the outer periphery of the inner core, it can be wound in a single layer or multiple layers, and there is no limitation here.

[0244] For example, the first sheet 110 is wound in a single layer, which simplifies the operation and is suitable for scenarios where the diameter of the substrate segment 11 is relatively small.

[0245] For example, the first sheet is wound in more than 110 layers, which helps to increase the thickness and strength of the outer periphery and to carry more aerosol-generating materials.

[0246] For example, the first sheet 110 can be arranged along the winding direction to make the aerosol generating material more evenly distributed.

[0247] For example, the first sheet 110 is at a certain angle to the winding direction to improve the utilization rate of the material.

[0248] In some embodiments, the second sheet 111 is a metal foil, and the inner core formed by winding has good thermal conductivity, which can transfer heat from the center to the outer periphery to assist the heating of the first sheet 110.

[0249] In some embodiments, the second sheet 111 is a nonwoven fabric, and the porous structure of the inner core can enhance air permeability, which, together with the aerosol generated by the outer first sheet 110, diffuses outward.

[0250] The inner core formed by the second sheet 111 provides solid internal support for the matrix segment 11, making the columnar structure less prone to deformation. When the first sheet 110 is wound around the outer periphery, it can fit more tightly against the inner core, reducing the possibility of interlayer loosening or detachment. This inner and outer layer structure allows the matrix segment 11 to maintain its shape stability during processing, transportation, and use, improving product reliability.

[0251] In this embodiment, the volume ratio of the second sheet 111 to the matrix segment 11 is in the range of 0.2 to 0.45.

[0252] Here, the volume of the second sheet 111 and the volume of the matrix segment 11 can be any one of 0.2, 0.22, 0.24, 0.26, 0.28, 0.3, 0.32, 0.34, 0.36, 0.38, 0.4, 0.42, 0.44, 0.45 or any value between the two.

[0253] In this embodiment, the volume ratio of the second sheet 111 to the first sheet 110 is set within the above range, that is, the first sheet 110 is relatively large in volume, and the second sheet 111 is relatively small in volume.

[0254] The volume ratio of the second sheet 111 to the first sheet 110 is set within the aforementioned range, meaning that the first sheet 110 is relatively large in volume, while the second sheet 111 is relatively small in volume. In this way, the first sheet 110 has sufficient volume to support the core aerosol generating material, and the reasonable volume ratio of the second sheet 111 allows it to effectively perform auxiliary functions (such as support, heat transfer, and synergistic aerosol generation). This avoids the second sheet 111 from being too large and encroaching on the space of the first sheet 110, or from being too small and failing to fully function.

[0255] In some embodiments, the viscosity of the second sheet 111 is less than that of the first sheet 110.

[0256] Viscosity refers to the adhesion and stickiness of sheet materials during processing and use. Viscosity comes from the natural components (proteins, sugars, etc.) in the raw materials and the adhesives, and reflects the bonding ability of the sheet material between particles, between sheet layers, between the sheet and equipment, and between the sheet and cigarette paper during processing.

[0257] For example, the viscosity of the sheet material ranges from 500 to 800 N. If the sheet viscosity is below 500 N, the sheet's ability to bond and form is poor, the adhesion of particles on the sheet surface is weak, and the powder content is high. If the sheet viscosity is above 800 N, the sheet will stick to the equipment during processing, affecting the forming process. After rolling, the sheet viscosity will cause adhesion between layers and between the sheet viscosity and the cigarette paper, reducing the number and size of air passages, resulting in excessive draw resistance and a decrease in smoke volume. In addition, if the content of the smoke-generating agent is too high, resulting in high medium viscosity, the medium is also prone to absorbing moisture. Moisture-absorbing medium affects the aerosol generation rate and taste.

[0258] Here, the viscosity of the second sheet 111 is lower than that of the first sheet 110. There is a difference between the first sheet 110 and the second sheet 111. The first sheet 110 has a higher viscosity, which is beneficial to improving the ability of the sheet to bond and form. The second sheet 111 has a lower viscosity, which can be placed at the contact point with the processing equipment to reduce the probability of adhesion to the equipment. By setting the difference in viscosity between the first sheet 110 and the second sheet 111, the matrix segment 11 can simultaneously include high-viscosity and low-viscosity sheets. In this way, the advantages of the two types of sheets can be combined, which is beneficial to the effect of manufacturing and aerosol generation.

[0259] In some embodiments, the density of the first sheet 110 is 1000 mg / cm³. 3 Up to 1500 mg / cm 3 The range.

[0260] Here, the first sheet 110 is composed of a matrix strip 112 and a connecting region 113, and the matrix strip 112 and the connecting region 113 are made of the same material. The density of the first sheet 110 is the same as the density of the materials of the matrix strip 112 and the connecting region 113.

[0261] The density of the first sheet 110 can be 1000 mg / cm³. 3 1050mg / cm 3 1080mg / cm 3 1100mg / cm 3 1150mg / cm 3 1180mg / cm 3 1200mg / cm 3 1250mg / cm 3 1260mg / cm 3 1280mg / cm 3 1300mg / cm 3 1350mg / cm 3 1360mg / cm 3 1380mg / cm 31400mg / cm 3 1450mg / cm 3 1480mg / cm 3 1500mg / cm 3 The point value of any one of them or the point value between any two.

[0262] Here, when the density of the first sheet 110 is greater than 1500 mg / cm3, it may result in a large draw resistance and a large heat capacity of the matrix section 11, resulting in a small amount of smoke in the initial draw and a greater restriction on the generation and migration of aerosols. When the density of the first sheet 110 is less than 1000 mg / cm3, it may result in insufficient stiffness of the matrix section 11, a small amount of smoke in the later stages of draw, poor consistency of the matrix section 11, and low draw satisfaction.

[0263] Thus, by setting the density of the first sheet 110 to be greater than or equal to 1000 mg / cm3 and less than or equal to 1500 mg / cm3, the draw resistance of the matrix section 11 can be appropriate, and it has a certain stiffness and smoke volume, which is beneficial to improving the consistency of the matrix section 11 and the satisfaction of vaping.

[0264] In some embodiments, the thermal conductivity of the first sheet 110 is in the range of 2.5 W / (m·K) to 4.5 W / (m·K).

[0265] The thermal conductivity of the first sheet 110 can be, for example, any one of the following values ​​or a value between any two: 2.5 W / (m·K), 2.6 W / (m·K), 2.7 W / (m·K), 2.8 W / (m·K), 2.9 W / (m·K), 3.0 W / (m·K), 3.1 W / (m·K), 3.2 W / (m·K), 3.3 W / (m·K), 3.4 W / (m·K), 3.5 W / (m·K), 3.6 W / (m·K), 3.7 W / (m·K), 3.8 W / (m·K), 3.9 W / (m·K), 4.0 W / (m·K), 4.1 W / (m·K), 4.2 W / (m·K), 4.3 W / (m·K), 4.4 W / (m·K), 4.5 W / (m·K).

[0266] Thermal conductivity is affected by material composition, manufacturing process, and thermally conductive additives. Generally, for heat conduction, when peripheral heating is used, thermal conductivity affects the heat transfer rate from the outside to the inside of the medium in the first sheet 110. Especially when thin sheets are rolled up and there are gaps between layers, the heat transfer rate affects the suction performance. If the thermal conductivity is lower than 2.5 W / (m·K), the heat in the outermost ring cannot be conducted in time, which may cause the outer layer to be overheated locally, carbonize quickly, and produce an unpleasant odor. Meanwhile, the inner layer is not heated enough, the smoke-generating agent cannot be activated, and the overall smoke volume is small. If it is higher than 4.5 W / (m·K), the heat from peripheral heating will be quickly conducted to the entire medium of the first sheet 110, but the medium in the outermost ring of the first sheet 110 cannot be heated quickly to activate the smoke-generating agent. This results in a small smoke volume in the first few puffs and poor consistency of smoke volume, and a relatively small smoke volume in the last few puffs.

[0267] In some embodiments, the absorption resistance of the matrix segment 11 is greater than 0 and less than or equal to 5 mm of water column.

[0268] The unit of suction resistance can be millimeters of water column (mmH2O).

[0269] For example, the absorption resistance of the matrix segment 11 can be any one of 0.01 mmH2O, 0.05 mmH2O, 0.1 mmH2O, 0.5 mmH2O, 1 mmH2O, 1.2 mmH2O, 1.5 mmH2O, 2 mmH2O, 2.2 mmH2O, 2.5 mmH2O, 3 mmH2O, 3.3 mmH2O, 3.5 mmH2O, 3.8 mmH2O, 4 mmH2O, 4.5 mmH2O, 4.8 mmH2O, 5 mmH2O, or a value between any two.

[0270] By setting the suction resistance of the matrix section 11 to be greater than 0 and less than or equal to 5 mm water column, the air intake of the second functional section 14 can smoothly enter the matrix section 11, which is also conducive to a more uniform and stable release of aerosols, and facilitates the release, bursting and smooth transport of aerosols.

[0271] In some embodiments, the fill rate of the matrix segment 11 is in the range of 60% to 90%.

[0272] The porosity of the matrix segment 11 can be any one of 60%, 62%, 64%, 66%, 68%, 70%, 72%, 74%, 76%, 78%, 80%, 82%, 84%, 86%, 88%, 90%, or any value between two of them.

[0273] Here, when the porosity of the matrix section 11 is less than 60%, it may result in a large suction resistance of the matrix section 11, which will greatly limit the generation and migration of aerosols. When the porosity of the matrix section 11 is greater than 90%, it may result in a small amount of smoke and a low smoking satisfaction.

[0274] Thus, by setting the porosity of the matrix segment 11 to be greater than or equal to 30% and less than or equal to 60%, the matrix segment 11 can have appropriate draw resistance and a certain amount of smoke, which is beneficial to improving the smoking satisfaction.

[0275] In some embodiments, as shown in Figures 17 to 20, at least one airflow channel 114 is formed between at least a portion of the matrix strips 112 within the matrix segment 11, and the airflow channel 114 extends along the length direction of the matrix strips 112.

[0276] The number of airflow channels 114 can be one or more.

[0277] When the aerosol sheet is wound or gathered to form the matrix segment 11, there is a certain gap between adjacent matrix strips 112, which can form an airflow channel 114.

[0278] The airflow channel 114 extends along the length of the matrix strip 112, which facilitates the flow of air along the length of the matrix strip 112. On the one hand, it can promote the generation of aerosols in the matrix strip 112, and on the other hand, it can carry the generated aerosols to the user, which is beneficial to the generation and migration of aerosols.

[0279] In some embodiments, the matrix strip 112 includes an aerosol forming agent, the weight of which is in the range of 15% to 30% based on the dry weight of the matrix strip 112.

[0280] The weight of the aerosol forming agent can be any one of 15%, 16%, 17%, 18%, 20%, 22%, 23%, 25%, 26%, 27%, 28%, or 30%, or any combination thereof.

[0281] Aerosol forming agents are used to form aerosols.

[0282] 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.

[0283] 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 15% to 30%, 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.

[0284] This disclosure provides an aerosol-generating article 10. Please refer to Figures 17 to 20. The aerosol-generating article 10 includes a matrix segment 11 according to any embodiment of this disclosure.

[0285] In this embodiment of the disclosure, the aerosol generating article 10 is described as being suitable for suction by heating without combustion.

[0286] Please refer to Figure 17. The aerosol generating article 10 of this disclosure is applied to the aerosol generating system 100.

[0287] For example, the aerosol generation system 100 includes the aerosol generation article 10 and the aerosol generation apparatus 20 of any embodiment of the present disclosure.

[0288] The aerosol generating product 10 is used in conjunction with the aerosol generating device 20, which is used to heat the aerosol generating product 10.

[0289] Aerosol generating article 10 is used to generate aerosols when heated for users to inhale.

[0290] In this embodiment of the disclosure, the aerosol-generated article 10 is generally cylindrical. The cylindrical shape can be a cylinder (i.e., with a circular cross-section), a prism (i.e., with a polygonal cross-section), an elliptical cylinder (i.e., with an elliptical cross-section), etc., and is not limited thereto.

[0291] Here, the number of aerosol generating products 10 in the aerosol generating device 20 can be one or more.

[0292] In this disclosure, "multiple" refers to two or more items.

[0293] In some embodiments, the aerosol generating article 10 further includes a first functional segment 13 located near the lip end of the matrix segment 11.

[0294] For example, the aerosol generating article 10 includes a first functional segment 13, a matrix segment 11, and a second functional segment 14 arranged sequentially. The first functional segment 13 is located at the distal lip end of the matrix segment 11, and the second functional segment 14 is located at the proximal lip end of the matrix segment 11.

[0295] The proximal end refers to the end of the aerosol generating product 10 that is closest to the user when using it, i.e., the end that is inhaled through the mouth. The distal end refers to the end of the aerosol generating product 10 that is furthest from the user when using it. In other words, the two ends of the aerosol generating product 10 along the first direction are the proximal end and the distal end, respectively.

[0296] For example, the first functional segment 13 includes a filter segment 132.

[0297] For example, the aerosol generated by the heated aerosol generating article 10 can flow through the filter section 132, which can filter out large particulate components and unwanted impurities in the aerosol. That is, the aerosol generated by the heated aerosol generating article 10 is filtered through the filter section 132 and then inhaled by the user.

[0298] In some embodiments, a functional segment includes a hollow tube segment 131, the hollow tube segment 131 having a hollow channel 1311 inside, the volume of the hollow channel 1311 being less than or equal to 250 mm². 3 .

[0299] The hollow tube section 131 can cool the flowing aerosol and also provide support for the aerosol-generated product 10.

[0300] The hollow tube section 131 forms a hollow channel 1311 inside, which is beneficial for the aerosol generated by the heating matrix section 11 to flow through the hollow channel 1311 for cooling. After passing through the hollow channel 1311, the aerosol flows through the filter section 132, which filters the aerosol.

[0301] The volume of the hollow channel 1311 can be 15mm. 3 20mm 3 25mm 3 30mm 3 35mm 3 40mm 3 45mm 3 50mm 3 55mm 3 60mm 3 65mm 3 70mm 3 75mm 3 80mm 3 85mm 3 90mm 3 95mm 3 100mm 3 105mm 3 110mm 3 115mm 3120mm 3 125mm 3 130mm 3 135mm 3 140mm 3 145mm 3 150mm 3 155mm 3 160mm 3 165mm 3 170mm 3 175mm 3 180mm 3 185mm 3 190mm 3 195mm 3 200mm 3 205mm 3 210mm 3 215mm 3 220mm 3 225mm 3 230mm 3 235mm 3 240mm 3 245mm 3 250mm 3 The point value of any one of them or the point value between any two.

[0302] For example, the length of the hollow tube segment 131 is greater than or equal to 15 mm and less than or equal to 20 mm. The length of the hollow tube segment 131 can be any one of 15 mm, 16 mm, 17 mm, 18 mm, 19 mm, and 20 mm, or any value between two of them.

[0303] The length of the hollow tube section 131 within this range can balance the cooling effect and reduce the condensation and retention of aerosols in the hollow tube section 131, thereby improving the aerosol extraction effect.

[0304] In some embodiments, a ventilation zone is provided on the hollow tube section 131, and the distance between the ventilation zone and the near-lip end of the first functional end is greater than or equal to 33 mm. The ventilation zone increases the external air intake, which is more conducive to aerosol migration. At the same time, since the high concentration of aerosols generated by the high-load aerosol matrix section 11 can cause the generated flue gas temperature to be higher, the ventilation zone also plays a certain role in cooling the flue gas temperature.

[0305] The equivalent aperture of the hollow channel 1311 is set to be greater than or equal to 1 mm and less than or equal to 4 mm. Preferably, the equivalent aperture is less than or equal to 3 mm. For example, the equivalent aperture of the hollow channel 1311 can be a point value of any one of 1 mm, 1.1 mm, 1.2 mm, 1.3 mm, 1.5 mm, 1.6 mm, 1.7 mm, 1.8 mm, 1.9 mm, 2 mm, 2.1 mm, 2.2 mm, 2.3 mm, 2.5 mm, 2.6 mm, 2.7 mm, 2.8 mm, 2.9 mm, 3 mm, and 4 mm, or a point value between any two. Preferably, the equivalent aperture is less than or equal to 3 mm.

[0306] The equivalent aperture of the hollow channel 1311 is the inner diameter of the hollow channel 1311.

[0307] The inner diameter of the hollow channel 1311 can affect the fluid flow state, while the Reynolds number (Re) is a dimensionless parameter used in fluid mechanics to describe the characteristics of fluid flow. Its core significance lies in quantifying the relative strength of inertial force and viscous force, thereby determining the fluid flow state (laminar or turbulent).

[0308] When Re < 2000, viscous forces dominate, and the fluid flow tends to be laminar; when Re > 2000, inertial forces dominate, and the fluid flow may change to turbulent flow.

[0309] The Nusselt number (Nu) is a dimensionless criterion number in heat transfer that characterizes the intensity of convective heat transfer in a fluid. It is defined as the ratio of the convective heat transfer coefficient to the pure conductive heat transfer coefficient.

[0310] At lower Reynolds numbers, laminar flow is generally dominant; at higher Reynolds numbers, flow tends towards turbulence. Turbulence is caused by differences between local fluid velocities and flow directions. These local velocities and directions may intersect or even be opposite, thus forming eddies.

[0311] Therefore, if the inner diameter of the hollow channel 1311 is too large, the aerosol flow will be laminar (Reynolds number Re less than 2000), and the heat exchange rate with the cooling wall will be low (Nusser number Nu less than or equal to 5). The measured cooling efficiency (temperature drop rate) is only 15℃ / cm–20℃ / cm, which may lead to the aerosol outlet temperature exceeding the standard, affecting the sucking experience. In addition, if the inner diameter of the hollow channel 1311 is too large, the fluid flow speed will be slow, and slow cooling will cause volatile components (such as glycerol and propylene glycol) to condense on the inner wall of the hollow channel 1311 (loss rate greater than or equal to 25%), reducing the density of effective aerosols. Furthermore, it will prolong the residence time of high-temperature aerosols and synergistically exacerbate the formation of harmful substances. Therefore, by setting the equivalent aperture of the hollow channel 1311 to be greater than or equal to 1 mm and less than or equal to 3 mm, the aerosol flow can be made to be turbulent (Reynolds number Re greater than 3000) and have a high heat exchange rate with the cooling wall (Nuser number Nu greater than or equal to 12).

[0312] Please refer to Figures 18, 19 and 20. In an embodiment where the first functional segment 13 includes both a filter segment 132 and a hollow tube segment 131, the hollow tube segment 131 is disposed between the matrix segment 11 and the filter segment 132.

[0313] For example, the aerosol generated by the heated aerosol generating article 10 can first flow through the hollow tube section 131 for cooling. After cooling, the aerosol then flows through the filter section 132, which can filter out large particles and unwanted impurities in the aerosol. That is, the aerosol generated by the heated aerosol generating article 10 is cooled and filtered sequentially through the hollow tube section 131 and the filter section 132 before being drawn in by the user.

[0314] For example, please refer to Figure 18. The first functional segment 13 includes a support segment 133, which can support the aerosol-generated article 10. Of course, the support segment 133 can also cool the flowing aerosol.

[0315] This helps to optimize the suction performance of the aerosol-generated product 10.

[0316] For example, the second functional segment 14 includes a front plug segment.

[0317] For example, the second functional segment 14 is a hollow tube.

[0318] For example, the aerosol generating article 10 includes a front plug section, a matrix section 11, a hollow tube section 131 and a filter section 132 arranged in sequence.

[0319] For example, the aerosol generating article 10 further includes a coating layer 12, which wraps around the outer periphery of the fore plug section, the matrix section 11, the hollow tube section 131 and the filter section 132.

[0320] For example, the material of the wrapping layer 12 is one or more of paper, paper tube, tin foil, aluminum foil, and aluminum foil composite paper.

[0321] For example, the wrapping layer 12 may be bottom-ventilated or bottom-sealed.

[0322] The pre-plug section 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 pre-plug section can effectively reduce the probability of the matrix section 11 falling out of the encapsulation layer 12; on the other hand, it can also effectively prevent the aerosol from condensing and flowing downwards and remaining in the containment chamber 21 of the aerosol generating device 20, thereby causing internal contamination of the containment chamber 21 and making it difficult to clean, and also preventing cross-contamination of flavors when drawing different flavored aerosol-generating products 10.

[0323] For example, the materials of the pre-plug section include, but are not limited to, paper, non-woven fabric, rubber, polyethylene terephthalate, cellulose acetate, mineral-containing products, cellulose paper filter rods, plant polysaccharides, etc.

[0324] In some embodiments, the length of the second functional segment 14 is in the range of 5 mm to 10 mm.

[0325] The length of the second functional segment 14 can be any one of 5mm, 5.2mm, 5.5mm, 5.8mm, 6mm, 6.5mm, 6.8mm, 7mm, 7.2mm, 7.5mm, 8mm, 8.5mm, 9mm, 9.5mm, 10mm, or any combination thereof.

[0326] When the length of the second functional section 14 is less than 5 mm, it is not conducive to the adsorption of the refluxed aerosol after the second functional section 14 has finished adsorbing, which easily leads to the condensation of aerosol in the aerosol generating device 20. When the length of the second functional section 14 is greater than 10 mm, the suction resistance of the second functional section 14 is large, which affects the bottom air intake, thereby reducing the aerosol carrying efficiency and the suction experience. Therefore, it is more appropriate to set the length of the second functional section 14 between 5 mm and 10 mm. Setting the length of the front plug section in the range of 5 mm to 9 mm helps to reduce the probability of the matrix section 11 falling out of the wrapping layer 12, and can also reduce the size of the aerosol generating product 10.

[0327] Of course, in other embodiments, the second functional segment 14 and / or the first functional segment 13 may also include a suction resistance adjustment segment.

[0328] For example, the first functional section 13 includes a suction resistance adjustment section. The aerosol generated by the heated aerosol generating product 10 first flows through the suction resistance adjustment section, then flows through the hollow tube section 131 for cooling. After cooling, the aerosol flows through the filtration section 132, which can filter out large particles and unwanted impurities in the aerosol. That is, the aerosol generated by the heated aerosol generating product 10 passes through the suction resistance adjustment section, the hollow tube section 131, and the filtration section 132 in sequence for suction resistance adjustment, cooling, and filtration before being inhaled by the user.

[0329] For example, the second functional segment 14 and / or the first functional segment 13 are columnar with a circular or elliptical cross-section. When the second functional segment 14 and / or the first functional segment 13 contain multiple functional segments with filtering and cooling effects, the longitudinal centers of the second functional segment 14 and / or the first functional segment 13 are coaxially aligned.

[0330] For example, the material of the filter section 132 includes, but is not limited to, cellulose acetate, polyethylene terephthalate, polypropylene fiber, cellulose paper filter rod, recycled tobacco, polylactic acid fiber, resin, plant polysaccharides, etc. The filter section 132 can filter and adsorb aerosols, thereby improving the purity and comfort of aerosols.

[0331] For example, referring to FIG17, the aerosol generating apparatus 20 includes a heating element 22 for heating the aerosol generating article 10 to generate aerosol.

[0332] The heating element 22 can heat the substrate segment 11 in any way. 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.

[0333] Specifically, the aerosol generating device 20 includes a housing and an energy supply element 23 disposed within the housing. The housing has a receiving chamber 21. The power output part of the energy supply element 23 is disposed within the receiving chamber 21 or around the side wall of the receiving chamber 21. When the portion of the aerosol generating product 10 located in the first direction range is inserted into the receiving chamber 21, the power output part transmits power to the heating element 22 in a contact or non-contact manner. The heating element 22 receives energy from the outside and generates heat, thereby heating the aerosol generating product 10 and generating aerosol.

[0334] In some embodiments, the suction resistance of the aerosol generating article 10 is greater than or equal to 20 mm water column and less than or equal to 50 mm water column.

[0335] For example, the absorption resistance of the matrix segment 11 and the aerosol generating article 10 can be tested according to GB / T 22838.5-2024.

[0336] For example, the absorption resistance of the aerosol generating article 10 can be any one of 20 mmH2O, 23 mmH2O, 25 mmH2O, 28 mmH2O, 30 mmH2O, 33 mmH2O, 35 mmH2O, 38 mmH2O, 40 mmH2O, 42 mmH2O, 45 mmH2O, 48 mmH2O, or 50 mmH2O, or a value between any two.

[0337] By setting the suction resistance of the aerosol generating product 10 to be greater than or equal to 20 mm water column, it is beneficial for the aerosol generated in the matrix section 11 to be carried out. By setting the suction resistance of the aerosol generating product 10 to be less than or equal to 50 mm water column, it is beneficial to reduce the user's suction force, making suction easier, more natural and smoother, reducing suction fatigue, and making it easier for the user to maintain continuous suction. This can further reduce the instability of aerosol output, so as to achieve uniform and stable release of aerosol. Moreover, the suction resistance of the aerosol generating product 10 within this range can make the aerosol burst high and the aerosol volume large, improving the suction taste and user comfort.

[0338] Here, the absorption resistance of the matrix segment 11 constitutes part of the overall absorption resistance of the aerosol-generating article 10.

[0339] It should be noted that the specific composition of matrix segment 11 is not limited here.

[0340] For example, in some embodiments, the matrix segment 11 may include tobacco plants, etc.

[0341] In other embodiments, the raw materials for the matrix segment 11 include protein sources, fiber sources, adhesives, soluble inorganic salts, and inorganic fillers. Specifically, the protein sources include one or more of rice protein, wheat protein, soybean protein, and pea protein; the fiber sources include one or more of bamboo fiber, isatis root fiber, soybean fiber, pea fiber, rice bran fiber, broadleaf fiber, and microcrystalline cellulose; the particle size of the protein sources and fiber sources is 80-120 mesh. The adhesives include one or more of guar gum, xanthan gum, carrageenan, sodium polyacrylate, sodium carboxymethyl cellulose, locust gum, konjac gum, and gellan gum. A mixture of one or more of sodium chloride, potassium carbonate, and sodium carbonate, and a mixture of one or more of sodium dihydrogen phosphate, sodium pyrophosphate, and sodium metaphosphate are used as soluble inorganic salts; a mixture of one or more of light calcium carbonate, heavy calcium carbonate, and alumina is used as an inorganic filler, the particle size of which is 160-200 mesh.

[0342] For example, 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. The matrix slurry is extruded to obtain a primary sheet matrix structure of a first thickness (i.e., the first sheet 110 or / or the second sheet 111); the primary sheet matrix structure (i.e., the first sheet 110 or / or the second sheet 111) is pressed into a primary sheet matrix structure of a second thickness (i.e., the first sheet 110 or / or the second sheet 111), wherein the first thickness is greater than the second thickness; the primary sheet matrix structure (i.e., the first sheet 110 or / or the second sheet 111) is cut into multiple unbroken matrix strips 112; the cut primary sheet matrix structure (i.e., the first sheet 110 or / or the second sheet 111) is wound or gathered.

[0343] This disclosure provides an aerosol generating article 10, including a first functional segment 13, a matrix segment 11, and a second functional segment 14 arranged sequentially. The matrix segment 11 is used to generate aerosols. By setting the first functional segment 13 and the second functional segment 14 such that the second functional segment 14 is located at the distal lip end of the matrix segment 11 and the first functional segment 13 is located at the proximal lip end of the matrix segment 11, that is, the second functional segment 14 and the first functional segment 13 are respectively set at both ends of the matrix segment 11 along the axial direction, which can reduce the probability of the matrix segment 11 falling off from the aerosol generating article 10, and can perform functions such as suction resistance adjustment, cooling, support, or filtration on the aerosol generating article 10.

[0344] In some embodiments, at least one of the suction resistance of the second functional segment 14 and the suction resistance of the matrix segment 11 is less than the suction resistance of the first functional segment 13.

[0345] The absorption resistance of the second functional segment 14 can be less than that of the first functional segment 13, or the absorption resistance of the matrix segment 11 can be less than that of the first functional segment 13, or both the absorption resistance of the second functional segment 14 and the absorption resistance of the matrix segment 11 can be less than that of the first functional segment 13.

[0346] The second functional section 14 is located at the distal lip of the matrix section 11, that is, the second functional section 14 is equivalent to the main air inlet of the aerosol generation product 10. Therefore, by setting the suction resistance of the second functional section 14 to be less than that of the first functional section 13, it is beneficial to increase the air intake of the aerosol generation product 10, thereby facilitating the generation and extraction of aerosols.

[0347] By setting the suction resistance of the matrix section 11 to be less than that of the first functional section 13, the air intake of the second functional section 14 can smoothly enter the matrix section 11, which can quickly carry out aerosols and is conducive to the uniform and stable release of aerosols and high burst release.

[0348] In this embodiment, by setting the suction resistance of the second functional segment 14 and the matrix segment 11 to be both lower than that of the first functional segment 13, it is beneficial to increase the air intake of the aerosol generation product 10. This allows the air intake of the second functional segment 14 to smoothly enter the matrix segment 11, facilitating the uniform, stable, and high-burst release of the aerosol. Meanwhile, the suction resistance of the first functional segment 13 is relatively larger than that of the second functional segment 14 and the matrix segment 11, which facilitates aerosol extraction, adjusts the user's inhalation experience, and ensures comfort. By having a larger suction resistance in the first functional segment 13 and a smaller suction resistance in the second functional segment 14 and the matrix segment 11, and ensuring an overall suitable suction resistance for the aerosol generation product 10, high-burst and stable aerosol release is guaranteed, while also improving inhalation comfort and increasing user satisfaction.

[0349] In some embodiments, the suction resistance of the matrix segment 11 is less than or equal to the suction resistance of the second functional segment 14.

[0350] It is understandable that by setting the absorption resistance of the matrix segment 11 to be less than or equal to the absorption resistance of the second functional segment 14, it is beneficial to increase the contact area between the matrix segment 11 and the gas, thereby facilitating the generation, release, extraction, and high burst of aerosols. On the other hand, if the absorption resistance of the second functional segment 14 is greater than or equal to the absorption resistance of the matrix segment 11, it can reduce the outflow of aerosols generated by the matrix segment 11 from the second functional segment 14 to a certain extent, thereby facilitating the extraction of aerosols and improving the utilization rate of aerosols.

[0351] In some embodiments, the suction resistance of the second functional segment 14 is greater than 0 and less than or equal to 5 mm of water column.

[0352] By making the suction resistance of the second functional section 14 greater than 0 and less than or equal to 5 mm water column, it is beneficial to increase the air intake of the aerosol generating product 10, thereby facilitating the generation and extraction of aerosols. It also makes the suction resistance of the aerosol generating product 10 appropriate, improving the user experience.

[0353] In some embodiments, the suction resistance of the first functional segment 13 is greater than or equal to 10 mm water column and less than or equal to 50 mm water column.

[0354] The suction resistance of the first functional segment 13 can be any one of the following values, or a value between any two: 10mmH2O, 13mmH2O, 15mmH2O, 18mmH2O, 19mmH2O, 20mmH2O, 23mmH2O, 25mmH2O, 28mmH2O, 30mmH2O, 33mmH2O, 35mmH2O, 38mmH2O, 40mmH2O, 42mmH2O, 45mmH2O, 48mmH2O, and 50mmH2O.

[0355] Since the suction resistance of the first functional section 13 is greater than or equal to 10 mm water column and less than or equal to 50 mm water column, it helps to ensure that the suction resistance of the aerosol generating product 10 is appropriate, reducing the user's suction force and minimizing instability in aerosol output, thus improving the suction experience and user comfort. Furthermore, it also helps to improve the filtration and / or cooling effect of the aerosol.

[0356] In some embodiments, as shown in Figures 17 and 18, the peripheral sidewall of the first functional segment 13 is provided with at least one air inlet 134.

[0357] The number of air intake vents 134 can be one or more.

[0358] For example, the air inlet 134 can be connected to the hollow channel 1311 inside the first functional section 13. In other words, the hollow channel 1311 inside the first functional section 13 is connected to the outside of the first functional section 13 through the air inlet 134.

[0359] Here, the first functional section 13 has an air inlet 134 that passes through the side wall of the hollow channel 1311. That is, the air inlet 134 passes through the side wall of the hollow channel 1311 and is connected to the hollow channel 1311.

[0360] For example, the wrapping layer 12 has a clearance hole at the position corresponding to the air inlet 134 to avoid the air inlet 134.

[0361] In this embodiment, at least one air inlet 134 is provided on the peripheral sidewall of the first functional section 13, so that external air can enter the interior of the first functional section 13 through the air inlet 134, which is beneficial to cooling the aerosol inside the first functional section 13, thereby further improving the cooling effect of the first functional section 13.

[0362] By adding a lateral air intake channel (i.e., air inlet 134), the internal and external environmental pressure of the airflow circulation is adjusted, which helps to improve the problem of slow aerosol extraction efficiency in the front section of the bottom air intake aerosol generation device 20 under the circumferential heating mode, reduces the transmission temperature of the extracted aerosol, and adjusts the absorption resistance (RTD) of the aerosol generation product 10.

[0363] In some embodiments, please refer to Figures 17 to 20, the second functional segment 14, the matrix segment 11 and the first functional segment 13 are cylinders and are coaxially arranged, and the arrangement direction of the second functional segment 14, the matrix segment 11 and the first functional segment 13 is the axial direction of the second functional segment 14, the matrix segment 11 and the first functional segment 13.

[0364] By setting the second functional segment 14, the matrix segment 11 and the first functional segment 13 as cylinders and arranging them sequentially along the axial direction of the second functional segment 14, the matrix segment 11 and the first functional segment 13, the structure of the aerosol generating product 10 can be made more compact, improving the user experience.

[0365] The present disclosure will now be described in further detail with reference to specific embodiments. These descriptions are merely illustrative and not intended to limit the scope of the disclosure.

[0366] Example 1

[0367] The matrix segment consists of two types of sheets. Each sheet is composed of multiple matrix strips of equal diameter and density. Each matrix strip is cylindrical, and the matrix strips between the sheets are of equal diameter but not of equal density. The matrix strip density of the first sheet is 1.214 mg / cm³. 3 The diameter is 1.0 mm, and the matrix strip density of the second sheet is 1.031 mg / cm³. 3 The diameter is 1.0 mm. The matrix strips of the first sheet are concentrated on the outer ring of the matrix section, and the matrix strips of the second sheet are concentrated on the inner ring of the matrix section. The sum of the cross-sectional areas of the matrix strips is 66.51% of the cross-sectional area of ​​the matrix section, and the moisture content of the matrix strips is 8.56%.

[0368] Example 2

[0369] The matrix segment consists of two types of sheets. Each sheet is composed of multiple matrix strips of equal diameter and density. Each matrix strip is cylindrical, and the matrix strips between the sheets are of equal diameter but not of equal density. The matrix strip density of the first sheet is 1.214 mg / cm³. 3 The diameter is 1.0 mm, and the matrix strip density of the second sheet is 1.031 mg / cm³. 3 The diameter is 1.0 mm. The matrix strips of the first sheet are concentrated in the inner circle of the matrix segment, and the matrix strips of the second sheet are concentrated in the outer circle of the matrix segment. The sum of the cross-sectional areas of the matrix strips is 63.28% of the cross-sectional area of ​​the matrix segment, and the moisture content of the matrix strips is 8.31%.

[0370] Example 3

[0371] The matrix segment consists of two types of sheets. Each sheet is composed of multiple matrix strips of equal diameter and density. Each matrix strip is cylindrical. The matrix strips between the sheets are of equal density but not equal diameter. The matrix strip density of the first sheet is 1.214 mg / cm³. 3The diameter is 1.0 mm, and the matrix strip density of the second sheet is 1.214 mg / cm³. 3 The diameter is 0.5mm. The matrix strips of the first sheet are concentrated in the inner circle of the matrix segment, and the matrix strips of the second sheet are concentrated in the outer circle of the matrix segment. The sum of the cross-sectional areas of the matrix strips is 69.21% of the cross-sectional area of ​​the matrix segment, and the moisture content of the matrix strips is 8.25%.

[0372] Example 4

[0373] The matrix segment consists of two types of sheets. Each sheet is composed of multiple matrix strips of equal diameter and density. Each matrix strip is cylindrical. The matrix strips between the sheets are of equal density but not equal diameter. The matrix strip density of the first sheet is 1.214 mg / cm³. 3 The diameter is 1.0 mm, and the matrix strip density of the second sheet is 1.214 mg / cm³. 3 The diameter is 0.5mm. The matrix strips of the first sheet are concentrated on the outer ring of the matrix section, and the matrix strips of the second sheet are concentrated on the inner ring of the matrix section. The sum of the cross-sectional areas of the matrix strips is 69.21% of the cross-sectional area of ​​the matrix section, and the moisture content of the matrix strips is 8.25%.

[0374] Example 5

[0375] The matrix segment consists of two types of sheets. Each sheet is composed of multiple matrix strips of equal density and diameter. Each matrix strip is cylindrical. The matrix strips between the sheets are not of equal diameter and density. The matrix strip density of the first sheet is 1.214 mg / cm³. 3 The diameter is 1.0 mm, and the matrix strip density of the second sheet is 1.031 mg / cm³. 3 The diameter is 0.5mm. The matrix strips of the first sheet are concentrated in the inner circle of the matrix segment, and the matrix strips of the second sheet are concentrated in the outer circle of the matrix segment. The sum of the cross-sectional areas of the matrix strips is 69.21% of the cross-sectional area of ​​the matrix segment, and the moisture content of the matrix strips is 8.25%.

[0376] Example 6

[0377] The matrix segment consists of two types of sheets. Each sheet is composed of multiple matrix strips of equal density and diameter. Each matrix strip is cylindrical. The matrix strips between the sheets are not of equal diameter and density. The matrix strip density of the first sheet is 1.214 mg / cm³. 3 It has two types of sheets, each with a diameter of 1.0 mm, and the matrix strip density of the second sheet is 1.031 mg / cm³. 3 It also has two types with a diameter of 0.5mm. The matrix strips of the first sheet are concentrated on the outer ring of the matrix section, and the matrix strips of the second sheet are concentrated on the inner ring of the matrix section. The sum of the cross-sectional areas of the matrix strips is 69.21% of the cross-sectional area of ​​the matrix section, and the moisture content of the matrix strips is 8.25%.

[0378] Comparative Example 1

[0379] Similar to Example 1, the matrix strips between the sheets are of equal diameter and density, with a matrix strip diameter of 1 mm and a density of 1.214 mg / cm³. 3 .

[0380] Comparative Example 2

[0381] Similar to Example 1, the matrix strips between the sheets are of equal diameter and density, with a matrix strip diameter of 1 mm and a density of 1.031 mg / cm³. 3 .

[0382] Comparative Example 3

[0383] The matrix strips were replaced with thickened tobacco sheets, which had a density of 0.912 mg / cm³, a thickness of 220 μm, a width of 1.0 mm, a specific heat capacity of 2.13 W / m·K, a ratio of the sum of the sheet cross-sectional areas to the cross-sectional area of ​​the matrix section of 74.36%, and a sheet moisture content of 8.25%.

[0384] Experimental data

[0385] Test 1:

[0386] The experimental subject was the matrix segment of Example 1, which was heated using a central heating device;

[0387] Test conditions: 51-56% RH, 25℃, clean room, 2 seconds of pumping and 28 seconds of stopping, 10 pumps, 5 vials in total, all units are mg.

[0388] Table 1 Test Results

[0389] As shown in Table 1, the initial smoke volume generated during the matrix heating process in Example 1 was 6.13 mg / puff, the average smoke volume (aerosol) per puff was 7.58 mg / puff, the RSD (relative standard deviation) of the smoke volume per puff was 12.23%, and the RSD (relative standard deviation) of nicotine was 25.71%. The release of smoke, aerosol generating agent, nicotine, and other effective substances per puff was very stable. This is mainly because the matrix strip in Example 1 has a heterogeneous distribution. The inner ring of the matrix section, which is in direct contact with the heating element, is a low-density matrix, which can quickly generate aerosols in the early stage of heating. The outer ring is a high-density matrix, which can continuously and stably output aerosols in the middle and later stages of heating. This ensures that the aerosols generated by the matrix strip throughout the heating process are consistently stable, thus improving the vaping experience.

[0390] Test 2:

[0391] The experimental subject was the matrix segment of Example 2, which was heated using a peripheral heating device;

[0392] Test conditions: Same as Test 1.

[0393] Table 2 Test Results

[0394] As shown in Table 2, the initial smoke volume generated during the matrix heating process in Example 2 was 6.47 mg / puff, the average smoke volume (aerosol) per puff was 7.72 mg / puff, and the RSD (relative standard deviation) of the smoke volume per puff was 13.31%. The release of smoke, aerosol generating agents, nicotine, and other effective substances per puff was relatively stable. This stability is mainly due to the heterogeneous distribution of the matrix strip in Example 2. The outer ring of the matrix section, which is in direct contact with the heating element, is a low-density matrix, allowing for rapid aerosol generation in the initial heating phase. The inner ring, being a high-density matrix, provides a continuous and stable aerosol output during the middle and later heating phases. This ensures a stable and continuous aerosol production throughout the heating process, improving the vaping experience.

[0395] Test 3:

[0396] The experimental subject was the matrix segment of Example 3, which was heated using a peripheral heating device;

[0397] Test conditions: Same as Test 1.

[0398] Table 3 Test Results

[0399] As shown in Table 3, the initial smoke volume generated during the matrix heating process in Example 3 was 5.4 mg / puff, the average smoke volume (aerosol) per puff was 7.47 mg / puff, and the RSD (relative standard deviation) of the smoke volume per puff was 14.73%. The release of smoke, aerosol generating agents, nicotine, and other effective substances per puff was relatively stable. This stability is mainly due to the heterogeneous distribution of the matrix strip in Example 3. The outer ring of the matrix strip, which is in direct contact with the heating element, has a smaller diameter and lower overall heat capacity, allowing for rapid aerosol generation in the initial heating phase. The inner ring of the matrix strip has a larger diameter and higher heat capacity, enabling a continuous and stable output of aerosols during the middle and later heating phases. This ensures a stable and continuous output of aerosols throughout the heating process, improving the vaping experience.

[0400] Test 4:

[0401] The experimental subject was the matrix segment of Example 4, which was heated using a central heating device;

[0402] Test conditions: Same as Test 1.

[0403] Table 4 Test Results

[0404] As shown in Table 4, the initial smoke volume generated during the matrix heating process in Example 4 was 4.97 mg / puff, the average smoke volume (aerosol) per puff was 6.79 mg / puff, and the RSD (relative standard deviation) of the smoke volume per puff was 15.62%. The release of smoke, aerosol generating agent, nicotine, and other effective substances per puff was relatively stable. This is mainly because the matrix strip in Example 4 is heterogeneously distributed. The inner ring of the matrix section, which is in direct contact with the heating element, has a smaller diameter and lower overall heat capacity, allowing for rapid aerosol generation in the early heating stage. The outer ring of the matrix strip has a larger diameter and higher heat capacity, allowing for continuous and stable aerosol output in the later heating stages. However, the overall aerosol content is lower than in Example 3, possibly due to the different heating method. The aerosol generated throughout the heating process is consistently stable, improving the vaping experience.

[0405] Test 5:

[0406] The experimental subject was the matrix segment of Example 5, which was heated using a peripheral heating device;

[0407] Test conditions: Same as Test 1.

[0408] Table 5 Test Results

[0409] As shown in Table 5, the initial smoke volume generated during the matrix heating process in Example 5 was 6.71 mg / puff, the average smoke volume (aerosol) per puff was 8.06 mg / puff, and the RSD (relative standard deviation) of the smoke volume per puff was 17.10%. The release of smoke, aerosol generating agents, nicotine, and other effective substances per puff was relatively stable. This is mainly because the matrix strip in Example 5 is heterogeneously distributed. The outer ring of the matrix section, which is in direct contact with the heating element, has a smaller density and diameter, making it easier to generate and migrate aerosols. Aerosols can be generated rapidly in the early heating stage. The outer ring of the matrix strip has a larger diameter and heat capacity, allowing for a continuous and stable output of aerosols in the middle and later heating stages. However, the overall aerosol content is lower than in Example 3, possibly due to the different heating method. The aerosols generated by the matrix strip throughout the heating process are consistently stable, improving the vaping experience.

[0410] Test 6:

[0411] The experimental subject was the matrix segment of Example 6, which was heated using a central heating device;

[0412] Test conditions: Same as Test 1.

[0413] Table 6 Test Results

[0414] As shown in Table 6, the initial smoke volume generated during the matrix heating process in Example 6 was 6.02 mg / puff, the average smoke volume (aerosol) per puff was 7.86 mg / puff, and the RSD (relative standard deviation) of the smoke volume per puff was 12.68%. The release of smoke, aerosol generating agents, nicotine, and other effective substances per puff was relatively stable. This stability is mainly due to the heterogeneous distribution of the matrix strip in Example 6. The inner ring of the matrix strip, which is in direct contact with the heating element, has a smaller density and diameter, making it easier to generate and migrate aerosols. Aerosols can be generated rapidly in the early heating stage. The outer ring of the matrix strip has a larger diameter and heat capacity, allowing for a continuous and stable output of aerosols in the middle and later heating stages. The aerosols generated by the matrix strip throughout the entire heating process are consistently stable, improving the vaping experience.

[0415] Test 7:

[0416] The experimental subject was the matrix segment of Comparative Example 1, which was heated using a central heating device;

[0417] Test conditions: Same as Test 1.

[0418] Table 7 Test Results

[0419] As shown in Table 7, the initial smoke volume during the matrix heating process in Comparative Example 1 was 3.7 mg / puff, the average subsequent smoke volume (aerosol) was 6.11 mg / puff, and the RSD (relative standard deviation) of the subsequent smoke volume was 25.02%. The release of smoke, aerosol generator, nicotine, and other effective substances during each puff was relatively stable. However, the release of smoke, aerosol generator, nicotine, and other effective substances during each puff was not very stable, especially in the initial smoke volume and its consistency. This is mainly because the matrix strip in Comparative Example 1 has a homogeneous distribution and a high overall density, resulting in slower aerosol generation in the initial heating stage, with a gradual increase in aerosol generation in the middle and later stages, leading to poor suction consistency.

[0420] Test 8:

[0421] The experimental subject was the matrix segment of Comparative Example 2, which was heated using a peripheral heating device;

[0422] Test conditions: Same as Test 1.

[0423] Table 8 Test Results

[0424] As shown in Table 8, the initial smoke volume during the matrix heating process in Comparative Example 2 was 4.08 mg / puff, the average smoke volume (aerosol) per puff was 6.65 mg / puff, and the RSD (relative standard deviation) of the smoke volume per puff was 25.02%. The release of smoke, aerosol generating agent, nicotine, and other effective substances per puff was relatively stable. However, the release of smoke, aerosol generating agent, nicotine, and other effective substances per puff was not very stable, especially in the initial smoke volume and its consistency. This is mainly because the matrix strip in Comparative Example 2 has a homogeneous distribution and a high overall density. The matrix density in direct contact with the heating element is also relatively high, resulting in slower aerosol generation in the initial heating stage, with a gradual increase in aerosol generation in the middle and later stages, leading to poor suction consistency.

[0425] Test 9:

[0426] The experimental subject was the matrix segment of Comparative Example 3, which was heated using a peripheral heating device;

[0427] Test conditions: Same as Test 1.

[0428] Table 9 Test Results

[0429] As can be seen from the results in Table 9, the amount of smoke generated during the matrix heating process in Comparative Example 2 was 4.44 mg / puff for the first puff and only 2.44 mg / puff for the last puff, showing a significant decrease. The average amount of smoke (aerosol) per puff was 4.30 mg / puff, and the RSD (relative standard deviation) of smoke per puff was 24.55%. The stability of smoke volume, aerosol generating agent in the smoke, nicotine and other effective substances released per puff showed a significant decrease, especially the amount of smoke in the first puff, which showed a serious decrease. The main reason is that the overall density and loading of the slurry-based thin film matrix in Comparative Example 1 were significantly lower than those in Example 1, which greatly affected the overall suction performance and suction consistency.

[0430] In the description of this disclosure, references to terms such as "in one embodiment," "in some embodiments," "in other embodiments," "in yet another embodiment," or "exemplary," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the embodiments of this disclosure. In this disclosure, 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, those skilled in the art can combine the different embodiments or examples described in this disclosure and the features of the different embodiments or examples without contradiction.

[0431] The above description is merely a preferred embodiment of this disclosure and is not intended to limit this disclosure. Various modifications and variations can be made to this disclosure by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this disclosure are included within the scope of protection of this disclosure.

Claims

1. A substrate segment, the substrate segment comprising at least a first sheet and a second sheet, the substrate segment being configured to be formed by winding or aggregating the first sheet and the second sheet. The first sheet includes a plurality of parallel and spaced matrix strips, and at least one connecting region is formed between adjacent matrix strips, the connecting region connecting adjacent matrix strips. At least the first sheet contains an aerosol generating material and can be heated to generate an aerosol.

2. The matrix segment according to claim 1, wherein, The first sheet and the second sheet are stacked along the thickness direction, and the matrix segment is formed by winding or gathering the stacked first sheet and the second sheet.

3. The matrix segment according to claim 2, wherein, The second sheet contains an aerosol generating material, and the thickness of the second sheet is less than the maximum thickness of the first sheet, or the density of the second sheet is less than the density of the first sheet, or the thermal conductivity of the second sheet is less than the thermal conductivity of the first sheet.

4. The matrix segment according to claim 3, wherein, The second sheet includes a plurality of parallel and spaced matrix strips, and at least one connecting region is formed between adjacent matrix strips, the connecting region connecting adjacent matrix strips.

5. The matrix segment according to claim 4, wherein, At least a portion of the matrix strip of the first sheet corresponds to at least a portion of the connecting region of the second sheet, or at least a portion of the matrix strip of the first sheet corresponds to at least a portion of the matrix strip of the second sheet, and at least a portion of the connecting region of the first sheet corresponds to at least a portion of the connecting region of the second sheet.

6. The matrix segment according to claim 4, wherein, The aerosol generating material of the first sheet is different from the aerosol generating material of the second sheet.

7. The matrix segment according to claim 2, wherein, In the first sheet, some of the matrix strips are different from the other matrix strips, or some of the connecting regions are different from the other connecting regions.

8. The matrix segment according to claim 7, wherein, In the first sheet, at least some of the matrix strips have cross-sectional dimensions different from the cross-sectional dimensions of the other matrix strips, or... At least some of the matrix strips have a cross-sectional shape different from the cross-sectional shape of the other matrix strips, or at least some of the matrix strips have a density different from the density of the other matrix strips.

9. The matrix segment according to claim 2, wherein, The second sheet is a paper sheet, non-woven fabric, or metal foil, and the matrix segment is formed by winding the first sheet and the second sheet together after they are stacked.

10. The matrix segment according to claim 9, wherein, The thickness of the second sheet is less than or equal to 0.4 mm, and the maximum thickness of the first sheet is in the range of 0.7 mm to 1.4 mm.

11. The matrix segment according to claim 9, wherein, The second sheet is loaded with aerosol generating material.

12. The matrix segment according to any one of claims 9-11, wherein, Along the length of the substrate segment, the tensile strength of the second sheet is greater than that of the first sheet, or the thermal conductivity of the second sheet is less than that of the first sheet.

13. The matrix segment according to any one of claims 9-11, wherein, The volume ratio of the second sheet to the first sheet is in the range of 0.1 to 0.

4.

14. The matrix segment according to any one of claims 9-11, wherein, The density of the second sheet is less than that of the first sheet, or the viscosity of the second sheet is less than that of the first sheet.

15. The matrix segment according to claim 1, wherein, The medium segment is columnar, and the second sheet is wound or gathered around the center of the medium segment to form an inner core, and the first sheet is wound around the outer periphery of the inner core.

16. The matrix segment according to claim 2, wherein, The volume ratio of the second sheet to the matrix segment is in the range of 0.2 to 0.

45.

17. The matrix segment according to claim 2, wherein, The density of the first sheet is 1000 mg / cm³. 3 Up to 1500 mg / cm 3 The range.

18. The matrix segment according to claim 2, wherein, The tensile strength of the first sheet along the length of the matrix strips is in the range of 400 N / m to 800 N / m.

19. The matrix segment according to claim 2, wherein, The thermal conductivity of the first sheet is in the range of 2.5 W / (m·K) to 4.5 W / (m·K).

20. The matrix segment according to claim 2, wherein, The absorption resistance of the matrix segment is greater than 0 and less than or equal to 5 mm of water column.

21. The matrix segment according to claim 2, wherein, The filling rate of the matrix segment is in the range of 60% to 90%.

22. An aerosol-generating article, comprising: The matrix segment according to any one of claims 1 to 21.

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