Aerosol substrate structure and aerosol-generating article

Abstract

The embodiment of the present application provides an aerosol substrate structure and an aerosol generating article, wherein the aerosol substrate structure comprises a substrate section, the substrate section comprises a first end face and a second end face opposite to each other along a first direction, and a side wall face between the first end face and the second end face; and a wrapping layer, the wrapping layer wraps the side wall face, and the wrapping layer and the substrate section are an integral structure. The aerosol substrate structure of the embodiment of the present application can better prevent the aerosol generating article from having a liquid seepage problem, and improve the cleanliness of the aerosol generating article.

Description

Technical Field

[0001] This application relates to the field of smoke generation technology, and in particular to an aerosol matrix structure and an aerosol-generating product. Background Technology

[0002] Aerosol-generated products are generally produced by heating without combustion. Specifically, the aerosol matrix structure includes a matrix segment, which is heated by an external heat source, such as a heating element on an aerosol generating device, to a temperature sufficient to release fragrance. The matrix segment does not burn; instead, it releases an atomizing agent through heating to form an aerosol.

[0003] Aerosol-generated products typically have an encapsulation layer, with the matrix segment encapsulated within it. However, liquids such as atomizing agents in the matrix segment can easily permeate the encapsulation layer, leading to leakage problems in aerosol-generated products. Utility Model Content

[0004] In view of this, the embodiments of this application aim to provide an aerosol matrix structure and an aerosol-generated product that can better prevent leakage problems in aerosol-generated products.

[0005] To achieve the above objectives, embodiments of this application provide an aerosol matrix structure, comprising:

[0006] The matrix segment includes a first end face and a second end face opposite each other along a first direction, and a sidewall surface located between the first end face and the second end face;

[0007] The wrapping layer wraps around the sidewall surface, and the wrapping layer and the matrix segment are an integral structure.

[0008] In one embodiment, the encapsulation layer and the matrix segment are an integral structure, and the encapsulation layer and the matrix segment are an integral structure formed by a co-extrusion molding process.

[0009] In one embodiment, the wrapping layer is a conductive element.

[0010] In one embodiment, the magnetic permeability of the cladding layer is 0.1 H / m to 1 × 10⁻⁶. -8 H / m.

[0011] In one embodiment, the coating layer is a thermally conductive element with a thermal conductivity of 0.1 W / (m·K) to 298 W / (m·K); and / or,

[0012] The resistivity of the encapsulation layer is 6 × 10⁻⁶. -8 Ωm~3×10 -5 Ωm.

[0013] In one embodiment, the coating layer includes a matrix and at least one of an atomizing agent and a flavoring substance attached to the matrix.

[0014] In one embodiment, the matrix segment has an airflow channel that extends through at least one end of opposite ends of the matrix segment along the first direction.

[0015] In one embodiment, the number of airflow channels is multiple and they extend through both ends of the matrix segment along the first direction;

[0016] The matrix segment has a first region passing through the center of the matrix segment, and a plurality of airflow channels surround the outer periphery of the first region; or,

[0017] The plurality of airflow channels include a first channel located at the center of the matrix segment and at least two second channels surrounding the outer periphery of the first channel.

[0018] In one embodiment, at least one of the interior of the matrix segment and the sidewall surface is provided with the airflow channel.

[0019] In one embodiment, the sidewall is provided with the airflow channel, the sidewall includes a first surface and a second surface formed by recesses to create the airflow channel, the wrapping layer is in contact with the first surface; the contact area between the wrapping layer and the first surface is not less than 26.7% of the sum of the areas of the first surface and the second surface.

[0020] In one embodiment, at least a portion of the airflow channel along its extension direction is a curve with a non-zero curvature; or,

[0021] The airflow channel is a straight channel.

[0022] In one embodiment, the number of airflow channels is multiple, and the airflow channels are arranged in one of the following ways: axisymmetric arrangement, centrosymmetric arrangement, grid arrangement, and matrix arrangement; or,

[0023] The airflow channels are arranged randomly.

[0024] In one embodiment, the cross-sectional shape of the matrix segment is circular, polygonal, elliptical, racetrack-shaped, or irregular; and / or,

[0025] The matrix segment has an airflow channel, and the cross-sectional shape of the airflow channel is circular, polygonal, elliptical, racetrack-shaped, or irregular.

[0026] In one embodiment, the thickness of the wrapping layer is 0.012 mm to 0.8 mm; and / or,

[0027] The length of the matrix segment along the first direction is 0.6cm to 12cm.

[0028] Another embodiment of this application provides an aerosol generating article, comprising: the aerosol matrix structure described above;

[0029] The functional segment is disposed at one end of the matrix segment along the first direction near the first end face, and the functional segment includes at least one of a filtration segment, a cooling segment, and a flavoring segment.

[0030] This application provides an aerosol matrix structure and an aerosol-generated product. The aerosol matrix structure has an integral coating layer and a matrix segment. The integrally formed coating layer and matrix segment can fit together more tightly. At the same time, compared with the coating layer of paper material, the coating layer processed by the integral molding process has a higher density. Therefore, the aerosol matrix structure of this application can effectively block liquids such as atomizing agents in the matrix segment, thereby better preventing leakage problems in the aerosol-generated product and improving the cleanliness of the aerosol-generated product. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the structure of the aerosol-generated article according to an embodiment of this application;

[0032] Figure 2 for Figure 1 The diagram shows the structure of the aerosol matrix.

[0033] Figure 3 This is a schematic diagram of the aerosol matrix structure of the second embodiment of this application;

[0034] Figure 4 for Figure 3 A perspective view of the aerosol matrix structure shown;

[0035] Figure 5 This is a schematic diagram of the aerosol matrix structure according to the third embodiment of this application;

[0036] Figure 6 for Figure 5 A perspective view of the aerosol matrix structure shown;

[0037] Figure 7 for Figure 6 A magnified view of part A in the middle;

[0038] Figure 8 This is a schematic diagram of the aerosol matrix structure according to the fourth embodiment of this application;

[0039] Figure 9 for Figure 8 A perspective view of the aerosol matrix structure shown;

[0040] Figure 10 This is a schematic diagram of the aerosol matrix structure according to the fifth embodiment of this application;

[0041] Figure 11 for Figure 10 The cross-sectional view of the aerosol matrix structure shown;

[0042] Figure 12 This is a schematic diagram of the aerosol matrix structure according to the sixth embodiment of this application;

[0043] Figure 13 for Figure 12 A perspective view of the aerosol matrix structure shown;

[0044] Figure 14 This is a cross-sectional schematic diagram of the aerosol matrix structure according to the seventh embodiment of this application;

[0045] Figure 15 This is a cross-sectional schematic diagram of the aerosol matrix structure according to the eighth embodiment of this application;

[0046] Figure 16 This is a cross-sectional schematic diagram of the aerosol matrix structure according to the ninth embodiment of this application.

[0047] Explanation of reference numerals in the attached figures

[0048] 10. Aerosol matrix structure; 10a. Airflow channel; 10a1. First channel; 10a2. Second channel; 11. Matrix segment; 111. First end face; 112. Second end face; 113. Side wall surface; 1131. First surface; 1132. Second surface; 12. Coating layer; 20. Functional segment; 21. Filtration segment; 22. Cooling segment; 23. Flavoring segment; 30. Outer coating. Detailed Implementation

[0049] In the description of the embodiments in this application, it should be noted that the orientation or positional relationship indicated by terms such as "first direction" is based on the appendix. Figure 1 The orientations or positional relationships shown are for the convenience of describing the embodiments of this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the embodiments of this application.

[0050] This application provides an aerosol-generating article; please refer to [link / reference]. Figure 1 The aerosol-generated product includes an aerosol matrix structure 10 and a functional segment 20.

[0051] Please see Figures 1 to 16The aerosol matrix structure 10 of this application embodiment includes a matrix segment 11 and a coating layer 12. The matrix segment 11 includes a first end face 111 and a second end face 112 opposite to each other along a first direction, and a side wall surface 113 located between the first end face 111 and the second end face 112. The coating layer 12 wraps around the side wall surface 113, and the coating layer 12 and the matrix segment 11 are an integral structure.

[0052] After being heated by the heating element of the aerosol generating device, the matrix segment 11 can release aerosols for users to inhale or for use in medicine, beauty, etc.

[0053] There are various heating methods for the heating element. For example, the heating methods include center heating and peripheral heating. Center heating means that the heating element is inserted into the interior of the substrate segment 11 to bake the substrate segment 11. Peripheral heating means that the heating element is placed on the periphery of the substrate segment 11 to bake the substrate segment 11.

[0054] The matrix segment 11 and the encapsulation layer 12 are manufactured by an integral molding process, which makes the matrix segment 11 and the encapsulation layer 12 form an integral structure at the same time.

[0055] The matrix segment 11 and the encapsulation layer 12 can be injection-molded structures processed by injection molding, blow-molded structures processed by blow molding, extruded structures processed by extrusion molding, compression-molded structures processed by compression molding, rotational molding, thermoforming, transfer molding, reaction injection molding, gas-assisted injection molding, casting, or microcellular foaming.

[0056] In one embodiment, the coating layer 12 and the matrix segment 11 are an integral structure, and the coating layer 12 and the matrix segment 11 are an integral structure formed by a co-extrusion molding process. The co-extrusion molding process involves extruding different mixtures of materials using one or more molding dies. These mixtures are fed from a multi-channel die head feed end to multiple sub-channels, and then converge at the outlet of the extrusion end of the multi-channel combined die and extruded into the same extrusion die. Finally, the extruded materials are cooled and shaped to form an integral structure.

[0057] Understandably, the matrix segment 11 and the encapsulation layer 12 are extruded by different extruders.

[0058] Specifically, two extruders are used in tandem with a T-shaped forming die according to a pre-set automatic control program. The first extruder is used for extruding the matrix segment 11, extrudes the molten material of the matrix segment 11 through a horizontal die, and delivers it to a common channel. The second extruder is used for extruding the coating layer 12, extrudes the molten material of the coating layer 12 through an extrusion die into the common channel, and then coats the surface of the molten material of the matrix segment 11 in the common channel with the molten material of the coating layer 12 through the branching channels of the T-shaped channel. The thickness of the coating layer 12 is adjusted by the extrusion speed.

[0059] The composition of the matrix segment 11 is not limited. In some embodiments, the matrix segment 11 may contain atomizing agents, additives, etc.

[0060] When heated, the atomizing agent forms an aerosol. The atomizing agent may include, but is not limited to, one or more of monohydric alcohols, polyhydric alcohols, polyesters, monocarboxylic acids, and polycarboxylic acids.

[0061] Additives may include fillers, adhesives, lubricants, fragrances, etc.

[0062] The main function of fillers is to provide a skeleton and increase porosity. Fillers include inorganic and organic fillers. Inorganic fillers are mixtures of one or more minerals such as calcium carbonate, zeolite, and talc, while organic fillers can be mixtures of one or more minerals such as lignin and cellulose.

[0063] The main function of lubricants is to improve fluidity and reduce equipment wear. Lubricants include, but are not limited to, one or more of the following: hyaluronic acid, beeswax, stearic acid, etc.

[0064] The main function of flavoring substances is to provide aerosol flavor, and they include both natural and artificial flavoring components. Natural flavoring components can be plant extracts, microbial extracts, etc.

[0065] The specific shape of the matrix segment 11 is not limited. For example, in some embodiments, the matrix segment 11 can be a structure with a constant cross-section. The matrix segment 11 with a constant cross-section structure is not only easy to process and manufacture, but also helps to improve the space utilization of aerosol generated products.

[0066] In other embodiments, the matrix segment 11 may also be a variable cross-section structure, which means that the size of the matrix segment 11 varies along the first direction, that is, the size of the matrix segment 11 at at least one location is not equal to the size at other locations.

[0067] The shape of the cross-section of the matrix segment 11 is not limited. For example, in some embodiments, the cross-section of the matrix segment 11 is circular, polygonal (including but not limited to triangle, square, rhombus, etc.), elliptical, racetrack-shaped, or irregular, etc. Irregular shape refers to other shapes besides those listed above.

[0068] For example, the matrix segment 11 is columnar, spherical, conical, or frustum-shaped.

[0069] The length of the matrix segment 11 along the first direction can be designed as needed. However, if the length of the matrix segment 11 along the first direction is too short, it will be difficult to provide a sufficient amount of aerosol; if the length of the matrix segment 11 along the first direction is too long, the aerosol extraction path will be too long, thereby reducing the extraction efficiency. Therefore, more preferably, the length of the matrix segment 11 along the first direction is 0.6 cm to 12 cm. For example, the length of the matrix segment 11 along the first direction can be 0.6 cm, 1 cm, 2.5 cm, 5.4 cm, 7.8 cm, 9 cm, 10.2 cm, 12 cm, etc.

[0070] The thickness of the coating layer 12 can be designed as needed. However, if the coating layer 12 is too thick, when using peripheral heating, the heat loss in the coating layer 12 during the transfer of heat from the coating layer 12 to the matrix segment 11 will be too great. When using central heating, the cooling of the aerosol will be difficult. If the coating layer 12 is too thin, it will be difficult to process and its strength will be difficult to guarantee. Therefore, more preferably, the thickness of the coating layer 12 can be 0.012 mm to 0.8 mm (including the endpoint values). For example, the thickness of the coating layer 12 can be 0.012 mm, 0.05 mm, 0.088 mm, 0.15 mm, 0.26 mm, 0.45 mm, 0.66 mm, 0.8 mm, etc.

[0071] In related technologies, the coating layer and the matrix segment of the aerosol-generated product are two separable structures. The coating layer is directly wrapped around the outer periphery of the matrix segment. It is difficult for the coating layer to adhere tightly to the matrix segment, and the coating layer is generally made of paper material. Therefore, liquids such as atomizing agents in the matrix segment can easily penetrate the coating layer, leading to leakage problems in the aerosol-generated product.

[0072] In this embodiment, the encapsulation layer 12 and the matrix segment 11 of the aerosol matrix structure 10 are an integral structure. The integrally formed encapsulation layer 12 and the matrix segment 11 can fit together more tightly. At the same time, compared with the encapsulation layer of paper material, the encapsulation layer 12 processed by the integral molding process has a higher density. Therefore, the aerosol matrix structure 10 of this embodiment can effectively block liquids such as atomizing agents in the matrix segment 11, thereby better preventing leakage problems in the aerosol generated products and improving the cleanliness of the aerosol generated products.

[0073] In addition, the paper wrapping layer can easily produce unpleasant odors such as paper impurities during the heating process of aerosol-generated products, which can affect the user experience.

[0074] Since the encapsulation layer 12 and the matrix segment 11 in this embodiment are an integral structure, the encapsulation layer 12 can be made of the same or similar material as the matrix segment 11. Alternatively, the encapsulation layer 12 can be made of other materials that are less likely to produce unpleasant odors, thereby effectively preventing unpleasant odors from being generated during the heating process of the aerosol-generated product and affecting the user's experience.

[0075] In one embodiment, the coating layer 12 includes a matrix and at least one of an atomizing agent and a flavoring substance attached to the matrix.

[0076] The atomizing agent in the coating layer 12 is also used to form an aerosol after heating, which can play a certain role in supplementing the aerosol in the matrix segment 11.

[0077] The atomizing agent in the coating layer 12 and the atomizing agent in the matrix segment 11 may have the same or different composition.

[0078] The flavoring substances in the coating layer 12 are also used to improve the flavor of the aerosol.

[0079] The flavoring substances in the encapsulation layer 12 and the flavoring substances in the matrix segment 11 may be the same or different.

[0080] In one embodiment, the coating layer 12 can be a thermally conductive element, that is, the coating layer 12 has a functional material with thermal conductivity. Thus, when using the peripheral heating method, heat can be transferred to the matrix section 11 more quickly through the coating layer 12 to improve heating efficiency. When using the central heating method, heat can also be effectively dissipated through the coating layer 12 to avoid the problem of difficulty in cooling aerosols.

[0081] For example, functional materials with thermal conductivity include one or more combinations of conductive metals (such as copper, aluminum, silver, and metal fibers), ceramics (such as aluminum nitride, boron nitride, and aluminum oxide), and fibrous materials (such as graphene, carbon nanotubes, and carbon fibers).

[0082] Furthermore, if the thermal conductivity of the coating layer 12 is too low, the heating efficiency will be low, affecting the user experience. If the thermal conductivity of the coating layer 12 is too high, the components in the coating layer 12 will be easily decomposed by heat, and heat will easily escape. Therefore, the thermal conductivity of the coating layer 12 can be maintained within a reasonable range by adjusting the content of the aforementioned materials in the coating layer 12. For example, the thermal conductivity of the coating layer 12 can be 0.1 W / (m·K) to 298 W / (m·K) (including endpoint values). For example, the thermal conductivity of the coating layer 12 can be 0.1 W / (m·K), 3 W / (m·K), 11 W / (m·K), 37 W / (m·K), 66 W / (m·K), 84 W / (m·K), 101 W / (m·K), 132 W / (m·K), 160 W / (m·K), 197 W / (m·K), 246 W / (m·K), 298 W / (m·K), etc.

[0083] In one embodiment, the encapsulation layer 12 can be a conductive element, that is, a functional material with conductive properties can be added to the encapsulation layer 12.

[0084] For example, functional materials with conductive properties may include metallic materials, such as one or more combinations of gold, silver, copper, iron, cobalt, nickel, aluminum, tungsten, and platinum.

[0085] During the heating process of the substrate segment 11 using the heating element, an electric current can pass through the wrapping layer 12 to generate heat, thereby providing additional heat to the substrate segment 11.

[0086] The resistivity of the wrapping layer 12 can be designed as needed. However, if the resistivity of the wrapping layer 12 is too small, it will be difficult for the wrapping layer 12 to generate the heat required for heating; if the resistivity of the wrapping layer 12 is too large, the energy loss of the wrapping layer 12 itself will also be too large. Preferably, the resistivity of the wrapping layer 12 is 6 × 10⁻⁶. -8 Ωm~3×10 -5 Ωm (including endpoint values). For example, the resistivity of the cladding layer 12 can be 6 × 10⁻⁶. -8 Ωm, 7×10 -7 Ωm, 5×10 -6 Ωm, 3×10 -5 Ωm, etc.

[0087] In some embodiments, the coating layer 12 may further comprise one or more combinations of ceramic materials (such as nickel oxide, aluminum nitride, boron nitride, and aluminum oxide) and non-metallic materials (such as graphite, graphene, and carbon nanotubes). The purpose of adding one or more of the ceramic and non-metallic materials is to increase the resistivity, making the resistivity of the coating layer 12 6 × 10⁻⁶. -8 Ωm~3×10 -5 Ωm (including endpoint values).

[0088] Furthermore, the encapsulation layer 12 may also include a magnetic functional material.

[0089] Magnetic functional materials can be one or more of iron, nickel, and cobalt, or alloys such as silicon steel and permalloy, or soft magnetic composite materials, magnetic nanoparticles, etc.

[0090] The magnetic functional materials in the encapsulation layer 12 can be oriented to form a medium capable of recording information, such as a magnetic strip. Correspondingly, a magnetic head capable of reading and writing this information can be installed in the aerosol generating device, so that the aerosol generating device can at least identify whether an aerosol generating product is installed.

[0091] The magnetic permeability of the coating layer 12 can be adjusted according to specific design requirements. Preferably, the magnetic permeability of the coating layer 12 is 0.1 H / m to 1 × 10⁻⁶. -8 H / m (including endpoint values). For example, the permeability of the cladding layer 12 can be 0.1H / m, 2×10⁻⁶. - 2 H / m, 5×10 -4 H / m, 7×10 -6 H / m, 4×10 -7 H / m, 1×10 -8 H / m, etc.

[0092] In one implementation method, please refer to [link / reference needed]. Figures 1 to 13 The matrix segment 11 has an airflow channel 10a that extends through at least one end of opposite ends of the matrix segment 11 along a first direction.

[0093] In other words, at least one end of the airflow channel 10a is open to the outside along the first direction. For example, the airflow channel 10a extends into the matrix segment 11 from the open end, and can extend to a certain depth of the matrix segment 11 but does not penetrate the matrix segment 11. That is, one end of the airflow channel 10a penetrates the matrix segment 11 and the other end is a closed end. Alternatively, the airflow channel 10a can also penetrate the matrix segment 11 at both ends along the first direction.

[0094] Compared to the airflow channel 10a penetrating one end of the matrix section 11, the airflow channel 10a penetrating both ends of the matrix section 11 is more conducive to reducing the suction resistance of the user's suction.

[0095] Please see Figure 3 , Figure 14 , Figure 15 and Figure 16 There are multiple airflow channels 10a, and the arrangement of the airflow channels 10a is not limited. For example, the airflow channels 10a can be arranged as follows: Figure 14 The axisymmetric arrangement shown, such as Figure 3As shown, the centrally symmetrical arrangement, such as Figure 16 The grid layout shown is as follows: Figure 15 The matrix arrangement shown is acceptable, or the airflow channels 10a can be arranged randomly (not shown in the figure).

[0096] The cross-sectional shape of the airflow channel 10a is not limited. For example, the cross-sectional shape can be circular, polygonal (including but not limited to triangle, square, rhombus, etc.), elliptical, runway-shaped, or irregular.

[0097] The number of airflow channels 10a can be one or more.

[0098] For example, please refer to Figure 2 , Figure 8 and Figure 9 An airflow channel 10a can penetrate the center of the substrate.

[0099] In some heating methods, aerosols will first flow out from the central region of the matrix segment 11 (such as the matrix segment 11 heated by the central heating method). For this type of matrix segment 11, the airflow channel 10a runs through the center of the matrix segment 11, which allows the aerosols to enter the airflow channel 10a in a timely manner, thereby improving the aerosol extraction efficiency.

[0100] In some embodiments, the number of airflow channels 10a is plurality of and they extend through opposite ends of the matrix segment along the first direction. For one embodiment, please refer to... Figure 12 and Figure 13 The matrix segment 11 has a first region Z passing through the center of the matrix segment 11 (i.e., Figure 12 (The area within the dashed circle) has multiple airflow channels 10a surrounding the outer periphery of the first area, meaning that the airflow channels 10a can avoid the center of the matrix segment 11.

[0101] Multiple airflow channels 10a can be arranged in a single circle or in multiple circles.

[0102] In some heating methods, aerosols will first flow out from near the outer wall of the matrix segment 11 (such as the matrix segment 11 heated by peripheral heating). For this type of matrix segment 11, multiple airflow channels 10a surround the outer periphery of the first region of the matrix segment 11, which can enable aerosols to enter the airflow channels 10a in a timely manner, thereby improving the extraction efficiency of aerosols.

[0103] In another implementation, please refer to Figures 3 to 6 The multiple airflow channels 10a may include a first channel 10a1 located at the center of the matrix segment 11 and at least two second channels 10a2 surrounding the outer periphery of the first channel 10a1.

[0104] In other words, the number of airflow channels 10a can be at least three. For ease of description, the airflow channel 10a that penetrates the center of the matrix segment 11 is called the first channel 10a1, and the airflow channel 10a located on the outer periphery of the first channel 10a1 is called the second channel 10a2.

[0105] Under certain heating methods, aerosols can flow out more evenly from various parts of the matrix segment 11. Therefore, one of the airflow channels 10a on the matrix segment 11 penetrates the center of the matrix segment 11, while the other airflow channels 10a are located on the outer periphery of the airflow channel 10a that penetrates the center of the matrix segment 11. This allows aerosols flowing out from various parts of the matrix segment 11 to enter the airflow channel 10a in a timely manner, thereby improving the aerosol extraction efficiency.

[0106] In other embodiments, the multiple airflow channels 10a may also be randomly distributed.

[0107] Please see Figures 2 to 16 At least one of the interior and sidewalls 113 of the matrix section 11 is provided with an airflow channel 10a.

[0108] When there are multiple airflow channels 10a, all airflow channels 10a may be located inside the matrix segment 11, all airflow channels 10a may be located on the side wall 113 of the matrix segment 11, or some airflow channels 10a may be located inside the matrix segment 11 and other airflow channels 10a may be located on the side wall 113 of the matrix segment 11.

[0109] Please see Figure 6 and Figure 7 The sidewall 113 is provided with an airflow channel 10a. The sidewall 113 includes a first surface 1131 and a second surface 1132 formed by recesses to create the airflow channel 10a. The wrapping layer 12 contacts the first surface 1131. The airflow channel 10a is actually a groove-shaped structure that passes through the sidewall 113 of the matrix segment 11. The wrapping layer 12 wraps the matrix segment 11 containing these groove-shaped structures and only contacts and connects with the first surface 1131. Together with the second surface 1132, it forms the airflow channel 10a.

[0110] The number and size of the airflow channels 10a formed on the side wall 113 can be adjusted according to specific design needs. However, if the contact area between the wrapping layer 12 and the first surface 1131 is too small, it is easy for the wrapping layer 12 and the matrix segment 11 to separate. Therefore, more preferably, the contact area between the wrapping layer 12 and the first surface 1131 is not less than 26.7% of the sum of the areas of the first surface 1131 and the second surface 1132. For example, the contact area between the wrapping layer 12 and the first surface 1131 is 26.7%, 33.2%, 47.5%, 66.6%, 78.7%, or 100% of the sum of the areas of the first surface 1131 and the second surface 1132 (no airflow channels 10a are formed in the side wall 113).

[0111] In some embodiments, please refer to Figure 4 , Figure 9 and Figure 11 The airflow channel 10a can be a straight channel, which is an airflow channel 10a that extends in a straight line, or in other words, the direction of extension of the straight channel is a straight line.

[0112] In other embodiments, please refer to Figure 6 and Figure 13 The airflow channel 10a may also be a curve with a non-zero curvature in at least a portion of the extended region.

[0113] In other words, the airflow channel 10a can be a spiral channel. Along the extension direction of the spiral channel, the spiral channel can have a structure with both curved segments with non-zero curvature and straight segments with zero curvature, or it can have a structure with only curved segments with non-zero curvature and no straight segments with zero curvature. That is to say, from the starting point to the ending point of the spiral channel along the extension direction, the spiral channel only needs to not extend in a straight line.

[0114] When there are multiple airflow channels 10a, all airflow channels 10a can be straight airways, all airflow channels 10a can be spiral channels, or some airflow channels 10a can be straight airways and other airflow channels 10a can be spiral channels.

[0115] The cross-sectional area of ​​each airflow channel 10a can be adjusted according to specific design requirements. However, if the cross-sectional area of ​​a single airflow channel 10a is too small compared to the cross-sectional area of ​​the matrix section 11, the airflow channel 10a is prone to blockage; if the cross-sectional area of ​​a single airflow channel 10a is too large compared to the cross-sectional area of ​​the matrix section 11, aerosols will accumulate in the larger airflow channel 10a, which is not conducive to the extraction of aerosols in locations far from that airflow channel 10a. Therefore, more preferably, the cross-sectional area of ​​a single airflow channel accounts for 0.3-35.3% (including endpoint values) of the cross-sectional area of ​​the matrix section 11. For example, the cross-sectional area of ​​a single airflow channel accounts for 0.3%, 1%, 6.7%, 18%, 27.5%, 35.3% of the cross-sectional area of ​​the matrix section 11, etc.

[0116] In some embodiments, please refer to Figure 1 The aerosol-generating article may also include a functional segment 20, which is disposed at one end of the matrix segment 11 along the first direction near the first end face 111.

[0117] For example, please refer to Figure 1 Functional segment 20 includes filter segment 21, which is disposed at one end of matrix segment 11 along the first direction near the first end face 111.

[0118] The filter section 21 is used to come into contact with the user's mouth during inhalation to filter large particles in the aerosol and to cool the aerosol.

[0119] The materials of the filter section 21 include, but are not limited to, one or more combinations of PE (polyethylene), PLA (polylactic acid), PBAT (butylene adipate-co-terephthalate), PP (polypropylene), cellulose acetate, and cellulose acrylic.

[0120] In other embodiments, functional segment 20 may also omit the filter segment 21. For example, the aerosol generating device may be equipped with a nozzle that can be reused or used only once. The nozzle may be used in conjunction with an aerosol generating product that does not have a filter segment 21 to replace the filter segment 21.

[0121] For example, please continue reading Figure 1 The functional segment 20 includes a cooling segment 22, which is disposed at one end of the matrix segment 11 along the first direction near the first end face 111. The aerosol is cooled after passing through the cooling segment 22. When the cooling segment 22 is in direct contact with the matrix segment 11, the cooling segment 22 can abut against and support the matrix segment 11, preventing the matrix segment 11 from moving along the first direction.

[0122] Functional section 20 can be equipped with both cooling section 22 and filtration section 21, with filtration section 21 located on the side of cooling section 22 away from substrate section 11.

[0123] In some other embodiments, the cooling section 22 may be omitted.

[0124] For example, please continue reading Figure 1 The functional segment 20 may further include a flavoring segment 23, which is disposed at one end of the matrix segment 11 along the first direction near the first end face 111. The aerosol is given a fragrance after passing through the flavoring segment 23.

[0125] Functional section 20 can include both aroma-enhancing section 23 and filtration section 21, with filtration section 21 located on the side of aroma-enhancing section 23 facing away from matrix section 11. Functional section 20 can also include aroma-enhancing section 23, cooling section 22, and filtration section 21 in sequence.

[0126] In some other embodiments, the flavor-enhancing segment 23 may be omitted.

[0127] In one embodiment, the wrapping layer 12 may protrude from the first end face 111 along a first direction to wrap at least a portion of the functional segment 20. That is, the length of the wrapping layer 12 along the first direction is greater than the length of the matrix segment 11 along the first direction. The wrapping layer 12 extends from the side wall surface 113 of the matrix segment 11 and together with the first end face 111 forms a cylindrical shape with one side open. The functional segment 20 can be inserted into the cylindrical wrapping layer 12 from the opening and wrapped, and extends to the position that contacts the first end face 111 of the matrix segment 11.

[0128] In other embodiments, the aerosol generating article may also include an outer wrapping 30 that wraps at least a portion of the functional segment 20. The outer wrapping 30 may also wrap both at least a portion of the aerosol matrix structure 10 and only a portion of the functional segment 20, thereby connecting the aerosol matrix structure 10 and the functional segment 20.

[0129] In other embodiments, the encapsulation layer 12 encapsulates only the matrix segment 11 and does not have an outer encapsulation member 30, leaving the functional segment 20 exposed.

[0130] In one specific embodiment, please refer to Figure 8 and Figure 9 The encapsulation layer 12 and the matrix segment 11 are cast structures. The aerosol matrix structure 10 can be a quadrangular prism with a side length of 4 mm and a length of 25 mm along the first direction.

[0131] A through channel can be provided in the center of the matrix segment 11. The cross-section of the through channel is circular and the diameter of the circle is 1.2 mm.

[0132] The atomizing agent in matrix segment 11 is a mixture of polyols. Matrix segment 11 may also include a matrix, binder, flavoring agent and emulsifier.

[0133] To ensure the aerosol matrix structure 10 is identifiable during use, the magnetic permeability of the coating layer 12 needs to be increased. This can be achieved by adding iron powder to the coating layer 12. The magnetic permeability of the coating layer 12 is 1×10⁻⁶. -2 H / m.

[0134] Furthermore, in order to enrich the flavor that the aerosol matrix structure 10 can produce after heating, flavor enhancers with a slow-release effect can be added to the coating layer 12.

[0135] In another specific embodiment, please refer to Figure 10 and Figure 11 The encapsulation layer 12 and the matrix segment 11 are compression-molded structures. The aerosol matrix structure 10 can be an elliptical cylinder with a length of 17 mm along the first direction and an elliptical cross-section with a major axis of 7 mm and a minor axis of 4 mm.

[0136] The matrix segment 11 has six straight channels with the same cross-sectional area, and each straight channel penetrates only one end of the matrix segment 11 along the first direction. The cross-section of each straight channel is rectangular, with a length of 0.2 mm and a width of 0.15 mm.

[0137] The atomizing agent in matrix segment 11 is a mixture of polyols and polyacids. Matrix segment 11 may also include a matrix, binder, and flavoring agent.

[0138] To ensure that the heat generated by the aerosol generating device can be efficiently conducted to the matrix section 11 through the coating layer 12, the thermal conductivity of the coating material needs to be increased. Silver powder can be added to the coating layer 12. The thermal conductivity of the coating layer 12 is 212 W / (m·K).

[0139] In another specific embodiment, please refer to Figure 12 and Figure 13 The encapsulation layer 12 and the matrix segment 11 are extruded structures. The aerosol matrix structure 10 can be a cylinder with a diameter of 6.9 mm and a length of 35 mm along the first direction.

[0140] The matrix segment 11 has 6 straight channels inside and 4 spiral channels on its outer periphery. The cross-section of both the straight channels and the spiral channels is a circle with a diameter of 0.32 mm.

[0141] The atomizing agent in matrix segment 11 is a mixture of polyols and polyacids. Matrix segment 11 may also include a matrix, binder, flavoring agent, and emulsifier.

[0142] Boron nitride ceramics can be added to the encapsulation layer 12 to improve the thermal conductivity and resistivity of the encapsulation material. The thermal conductivity can reach 132 W / (m·K), and the resistivity can reach 1×10⁻⁶. -5 Ωm.

[0143] In the description of this application, the references to terms such as "in one embodiment," "in some embodiments," "in other embodiments," "in yet another embodiment," or "exemplary," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the embodiments of this application. In this application, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. Furthermore, without contradiction, those skilled in the art can combine the different embodiments or examples described in this application, as well as the features of the different embodiments or examples.

[0144] The above description is merely a preferred embodiment of this application and is not intended to limit the application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application are included within the scope of protection of this application.

Claims

1. An aerosol matrix structure, characterized in that, include: The matrix segment includes a first end face and a second end face opposite each other along a first direction, and a sidewall surface located between the first end face and the second end face; The wrapping layer wraps around the sidewall surface, and the wrapping layer and the matrix segment are an integral structure.

2. The aerosol matrix structure according to claim 1, characterized in that, The encapsulation layer and the matrix segment are an integral structure, and the encapsulation layer and the matrix segment are an integral structure formed by a co-extrusion molding process.

3. The aerosol matrix structure according to claim 1 or 2, characterized in that, The encapsulation layer is a conductive element.

4. The aerosol matrix structure according to claim 3, characterized in that, The magnetic permeability of the cladding layer is 0.1 H / m to 1 × 10⁻⁶. -8 H / m.

5. The aerosol matrix structure according to claim 3, characterized in that, The encapsulation layer is a thermally conductive element with a thermal conductivity of 0.1 W / (m·K) to 298 W / (m·K); and / or, The resistivity of the encapsulation layer is 6 × 10⁻⁶. -8 Ωm~3×10 -5 Ωm.

6. The aerosol matrix structure according to claim 1 or 2, characterized in that, The coating layer includes a matrix and at least one of an atomizing agent and a flavoring substance attached to the matrix.

7. The aerosol matrix structure according to claim 1 or 2, characterized in that, The matrix segment has an airflow channel that extends through at least one of the opposite ends of the matrix segment along the first direction.

8. The aerosol matrix structure according to claim 7, characterized in that, The number of airflow channels is multiple and they penetrate the matrix segment at both ends along the first direction; The matrix segment has a first region passing through the center of the matrix segment, and a plurality of airflow channels surround the outer periphery of the first region; or, The plurality of airflow channels include a first channel located at the center of the matrix segment and at least two second channels surrounding the outer periphery of the first channel.

9. The aerosol matrix structure according to claim 7, characterized in that, The airflow channel is provided in at least one of the interior of the matrix segment and the side wall surface.

10. The aerosol matrix structure according to claim 9, characterized in that, The sidewall is provided with the airflow channel, the sidewall includes a first surface and a second surface formed by recesses to create the airflow channel, the wrapping layer is in contact with the first surface; the contact area between the wrapping layer and the first surface is not less than 26.7% of the sum of the areas of the first surface and the second surface.

11. The aerosol matrix structure according to claim 7, characterized in that, At least a portion of the airflow channel along its extension direction is a curve with a non-zero curvature; or, The airflow channel is a straight channel.

12. The aerosol matrix structure according to claim 7, characterized in that, The number of airflow channels is multiple, and the airflow channels are arranged in one of the following ways: axisymmetric arrangement, centrosymmetric arrangement, grid arrangement, and matrix arrangement; or... The airflow channels are arranged randomly.

13. The aerosol matrix structure according to claim 1 or 2, characterized in that, The cross-sectional shape of the matrix segment is circular, polygonal, elliptical, racetrack-shaped, or irregular; and / or, The matrix segment has an airflow channel, and the cross-sectional shape of the airflow channel is circular, polygonal, elliptical, racetrack-shaped, or irregular.

14. The aerosol matrix structure according to claim 1 or 2, characterized in that, The thickness of the wrapping layer is 0.012 mm to 0.8 mm; and / or, The length of the matrix segment along the first direction is 0.6cm to 12cm.

15. An aerosol-generating product, characterized in that, include: The aerosol matrix structure according to any one of claims 1-14; The functional segment is disposed at one end of the matrix segment along the first direction near the first end face, and the functional segment includes at least one of a filtration segment, a cooling segment, and a flavoring segment.

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