Aerosol-generating substrate sheet and aerosol-generating product

Abstract

The embodiment of the invention provides an aerosol generating substrate sheet and an aerosol generating product, the aerosol generating substrate sheet is of an integrated structure with at least one air channel, and the at least one air channel extends from one end of the aerosol generating substrate sheet in a first direction to the other opposite end of the aerosol generating substrate sheet. And at least one of the two opposite ends of at least one air channel in the extending direction is an open end. According to the aerosol generation substrate sheet, the aerosol extraction efficiency of the aerosol generation product can be improved, and the aerosol generation substrate sheet can be adapted to various heating modes.

Description

Technical Field

[0001] The present application relates to the field of smoke generation technology, and in particular to an aerosol generating substrate sheet and an aerosol generating product. Background Art

[0002] Aerosol generating products generally generate aerosols by heating without burning. Specifically, an aerosol generating matrix is ​​provided in the aerosol generating product. The aerosol generating matrix is ​​heated by an external heat source, such as a heating component on an aerosol generating device, so that it is heated just enough to emit a fragrance. The aerosol generating matrix does not burn, but instead loads an atomizer and releases the atomizer by heating when in use to form smoke.

[0003] In the related art, the aerosol generating matrix is ​​generally wrapped by an outer packaging layer, and then rolled with other functional sections such as a cooling section and a filtering section to form a cylindrical aerosol generating product. The aerosol extraction efficiency of this type of aerosol generating product is low, and there are fewer adaptable heating methods. Summary of the invention

[0004] In view of this, the embodiments of the present application hope to provide an aerosol generating matrix sheet and an aerosol generating product to solve the technical problems in the related art that the aerosol generating product has low aerosol extraction efficiency and few adaptable heating methods.

[0005] To achieve the above-mentioned purpose, an embodiment of the present application provides an aerosol generating matrix sheet, wherein the aerosol generating matrix sheet is an integral structure having at least one air channel, wherein at least one of the air channels extends from one end of the aerosol generating matrix sheet along a first direction to another opposite end, and at least one of the opposite ends of at least one of the air channels along the extension direction is an open end.

[0006] In one embodiment, the aerosol-generating substrate sheet has a thickness of 0.1 mm to 5 mm.

[0007] In one embodiment, there are a plurality of air passages, each of which extends from one end of the aerosol generating matrix sheet along the first direction to the other opposite end.

[0008] In one embodiment, the number of the air channels is multiple, a portion of the air channels extend from one end of the aerosol generating matrix sheet along the first direction to the other opposite end, and another portion of the air channels extend from one end of the aerosol generating matrix sheet along the second direction to the other opposite end, wherein the second direction intersects with the first direction.

[0009] In one embodiment, the first direction is one of the length direction, width direction and thickness direction of the aerosol generating substrate sheet.

[0010] In one embodiment, the first direction is inclined relative to at least two directions of the length direction, the width direction and the thickness direction of the aerosol generating substrate sheet.

[0011] In one embodiment, two opposite ends of the airway along the extension direction are both open ends.

[0012] In one embodiment, the air channel is multiple and includes at least one of a first air channel and a second air channel, wherein the first air channel is located inside the aerosol generating matrix sheet, and the second air channel is located outside the aerosol generating matrix sheet.

[0013] In one embodiment, the cross-sectional shape of the first airway is one of circular, elliptical, oval, polygonal and irregular.

[0014] In one embodiment, a plurality of the first air channels are disposed inside the aerosol generating matrix sheet, and among all the first air channels, a cross-sectional area of ​​at least one of the first air channels is different from the cross-sectional areas of the other first air channels.

[0015] In one embodiment, a plurality of the first air channels are disposed inside the aerosol generating matrix sheet, and among all the first air channels, a cross-sectional shape of at least one of the first air channels is different from the cross-sectional shapes of the other first air channels.

[0016] In one embodiment, the aerosol generating matrix sheet includes a main body and a plurality of protrusions, each of the protrusions is arranged at intervals on the circumference of the main body, and the second air channel is formed at the interval between two adjacent protrusions.

[0017] In one embodiment, a portion of the outer surface of the aerosol-generating substrate sheet is recessed to form the second air channel.

[0018] In one embodiment, the cross-sectional shape of the second airway is one of semicircular, semi-elliptical, polygonal and irregular.

[0019] In one embodiment, the aerosol generating matrix sheet is wavy with crests and troughs, and at least the space on the concave side of the crests and the space on the concave side of the troughs of the aerosol generating matrix sheet are respectively configured as the second air channels.

[0020] In one embodiment, the aerosol generating matrix sheet is in a spiral shape with multiple turns, and two adjacent turns of the aerosol generating matrix sheet are spaced apart so that the second air channel is formed at the spaced apart positions.

[0021] In one embodiment, the interior of the aerosol generating matrix sheet has a plurality of the first air channels extending from one end of the aerosol generating matrix sheet along the first direction to the other opposite end;

[0022] Multiple first airways are arranged to form multiple trajectory lines, wherein each of the first airways in a single trajectory line is arranged along a third direction, and multiple trajectory lines are arranged along a fourth direction, wherein the third direction intersects with the fourth direction, and the plane where the third direction and the fourth direction are located is perpendicular to the first direction.

[0023] In one embodiment, the first airways in the plurality of trajectory lines are evenly distributed.

[0024] In one embodiment, each of the first airways in a single trajectory line is arranged in a straight line along the third direction, and a plurality of trajectory lines are arranged along the fourth direction perpendicular to the third direction.

[0025] In one embodiment, each of the first air channels in a single trajectory line is arranged along a circumferential direction around the center of the aerosol generating matrix sheet, and a plurality of trajectory lines are arranged along a radial direction of the aerosol generating matrix sheet.

[0026] In one embodiment, the first airways in a single trajectory are repeatedly arranged, and the cross-sectional area of ​​the first airways in each trajectory gradually increases or decreases from the center of the aerosol generating matrix sheet to the radially outer side of the aerosol generating matrix sheet.

[0027] In one embodiment, the first air channels in a single trajectory are repeatedly arranged, and the distance between the first air channels in two adjacent trajectory lines gradually increases or decreases from the center of the aerosol generating matrix sheet to the radial outer side of the aerosol generating matrix sheet.

[0028] In one embodiment, the interior of the aerosol generating matrix sheet has a plurality of the first air channels extending from one end of the aerosol generating matrix sheet along the first direction to the other opposite end, and the first air channels are randomly distributed.

[0029] In one embodiment, the interior of the aerosol generating matrix sheet has a plurality of first air channels extending from one end of the aerosol generating matrix sheet along the first direction to the other opposite end, and each of the first air channels is distributed in each area inside the aerosol generating matrix sheet.

[0030] In one embodiment, the interior of the aerosol generating matrix sheet has a plurality of first air channels extending from one end of the aerosol generating matrix sheet along the first direction to the other opposite end, and the interior of the aerosol generating matrix sheet has a first area and a second area, and each of the first air channels is distributed in the first area.

[0031] In one embodiment, the aerosol generating matrix sheet has at least three first air channels extending from one end of the aerosol generating matrix sheet along the first direction to the other opposite end; among all the first air channels, one first air channel is located at the center of the aerosol generating matrix sheet, and the other first air channels surround the first air channel located at the center, and the cross-sectional area of ​​the first air channel located at the center is larger than the cross-sectional area of ​​any other first air channel.

[0032] In one embodiment, the airway is a straight airway extending along a straight line.

[0033] In one embodiment, the airway is a spiral airway, and at least a portion of the spiral airway along the extension direction is in a curved shape with a curvature that is not zero.

[0034] In one embodiment, the cross-sectional shape of the aerosol generating substrate sheet perpendicular to the thickness direction is one of circular, elliptical, oval, polygonal and irregular.

[0035] Another embodiment of the present application provides an aerosol-generating product, comprising the aerosol-generating substrate sheet described above.

[0036] In one embodiment, the aerosol generating matrix sheet has a first outer surface, a second outer surface and a third outer surface, the first outer surface and the second outer surface are respectively located at opposite ends of the aerosol generating matrix sheet along the first direction, the third outer surface is located between the first outer surface and the second outer surface, and the aerosol generating product includes an outer wrapping layer, and the outer wrapping layer wraps the third outer surface.

[0037] The embodiment of the present application provides an aerosol-generating matrix sheet and an aerosol-generating product. The aerosol-generating matrix sheet is an integrated structure having at least one airway. Since the thickness of the aerosol-generating matrix sheet is relatively thin and the aerosol-generating matrix sheet has at least one airway, the aerosol-generating matrix sheet heats up faster during the heating process, and the aerosol release rate is also faster, which is more suitable for the pump-and-stop method. In addition, the volume of the aerosol-generating matrix sheet can be designed in a wide space, and the adaptable heating method is diverse. In addition to conventional circumferential heating and central heating, single-sided heating or double-sided heating can also be used. It can be seen that the aerosol-generating matrix sheet of the embodiment of the present application can not only improve the aerosol extraction efficiency of the aerosol-generating product, but also can be adapted to a variety of heating methods. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 This is a schematic structural diagram of the first aerosol generating substrate sheet according to an embodiment of the present application;

[0039] Figure 2 for Figure 1 A cross-sectional view of an aerosol-generating substrate sheet is shown;

[0040] Figure 3 This is a schematic structural diagram of a second aerosol-generating substrate sheet according to an embodiment of the present application;

[0041] Figure 4 for Figure 3 A cross-sectional view of an aerosol-generating substrate sheet is shown;

[0042] Figure 5 This is a schematic structural diagram of a third aerosol generating substrate sheet according to an embodiment of the present application;

[0043] Figure 6 for Figure 5 A cross-sectional view of an aerosol-generating substrate sheet is shown;

[0044] Figure 7 is a cross-sectional view of a fourth aerosol generating substrate sheet according to an embodiment of the present application;

[0045] Figure 8 is a cross-sectional view of a fifth aerosol-generating substrate sheet according to an embodiment of the present application;

[0046] Fig. 9 This is a schematic structural diagram of a sixth aerosol generating substrate sheet according to an embodiment of the present application;

[0047] Fig.10 This is a schematic structural diagram of a seventh aerosol generating substrate sheet according to an embodiment of the present application;

[0048] Fig.11 This is a schematic structural diagram of an eighth aerosol-generating substrate sheet according to an embodiment of the present application;

[0049] Fig.12 This is a schematic structural diagram of a ninth aerosol generating substrate sheet according to an embodiment of the present application;

[0050] Fig.13 This is a schematic structural diagram of a tenth aerosol generating substrate sheet according to an embodiment of the present application;

[0051] Fig.14 This is a schematic structural diagram of an eleventh aerosol generating substrate sheet according to an embodiment of the present application;

[0052] Fig.15 This is a schematic structural diagram of a twelfth aerosol generating substrate sheet according to an embodiment of the present application;

[0053] Fig.16 This is a schematic structural diagram of a thirteenth aerosol generating substrate sheet according to an embodiment of the present application;

[0054] Fig.17 This is a schematic structural diagram of a fourteenth aerosol generating substrate sheet according to an embodiment of the present application;

[0055] Fig.18 This is a schematic structural diagram of a fifteenth aerosol generating substrate sheet according to an embodiment of the present application;

[0056] Fig.19 This is a schematic structural diagram of a sixteenth aerosol generating substrate sheet according to an embodiment of the present application;

[0057] Fig. 20 This is a schematic structural diagram of a seventeenth aerosol generating substrate sheet according to an embodiment of the present application;

[0058] Fig.21 This is a schematic structural diagram of an eighteenth aerosol generating substrate sheet according to an embodiment of the present application;

[0059] Fig. 22 This is a schematic structural diagram of a nineteenth aerosol generating substrate sheet according to an embodiment of the present application;

[0060] Fig.23 This is a schematic structural diagram of the twentieth aerosol generating substrate sheet according to an embodiment of the present application;

[0061] Fig.24 This is a schematic structural diagram of the twenty-first aerosol generating substrate sheet according to an embodiment of the present application;

[0062] Fig.25 This is a schematic structural diagram of the twenty-second aerosol generating substrate sheet according to an embodiment of the present application;

[0063] Fig.26 A schematic diagram of the structure of an aerosol generating product according to an embodiment of the present application;

[0064] Fig. 27 for Fig.26 A cross-sectional view of an aerosol-generating article is shown.

[0065] Description of Reference Numerals

[0066] 10. Aerosol-generating matrix sheet; 10a. air channel; 10a1. first air channel; 10a2. second air channel; 10b. crest; 10c. trough; 10d. first outer surface; 10e. second outer surface; 10f. third outer surface; 10g. first region; 10h. second region; 11. main body; 12. raised portion; 20. outer wrapping layer. DETAILED DESCRIPTION

[0067] In the description of the embodiments of the present application, it should be noted that the terms "length direction", "width direction", "thickness direction" and the like indicate directions or positional relationships based on the attached Figure 1 The orientation or positional relationship shown, these orientation terms are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present application.

[0068] An embodiment of the present application provides an aerosol generating product, see Figures 1 to 25 , the aerosol-generating article comprises an aerosol-generating substrate sheet 10 .

[0069] The aerosol generating article can be used in conjunction with an aerosol generating device having a heating component. Specifically, the heating component heats and atomizes the aerosol generating matrix sheet 10 to generate an aerosol for users to inhale or for use in medicine, beauty, etc.

[0070] See also Figure 1 The aerosol-generating substrate sheet 10 is a flat structure whose thickness dimension is smaller than its length dimension and width dimension. That is, the aerosol-generating substrate sheet 10 has a relatively thin thickness dimension.

[0071] Specifically, see Figure 1 The aerosol generating substrate sheet 10 has a length direction, a width direction and a thickness direction which are perpendicular to each other. For the aerosol generating substrate 10 having a circular cross-sectional shape perpendicular to the thickness direction (refer to Fig.10 For the aerosol generating substrate 10 shown in FIG. 1 , the length direction and the width direction are equivalent to two mutually perpendicular directions on the circular surface. The dimension of the aerosol generating substrate sheet 10 along the length direction is the length dimension, the dimension along the width direction is the width dimension, and the dimension along the thickness direction is the thickness dimension. The thickness dimension refers to the distance between the two opposite surfaces of the aerosol generating substrate sheet 10 that are closest to each other (refer to FIG. 1 ). Figure 1The distance between the first outer surface 10d and the second outer surface 10e shown, the profiles of the two nearest relative surfaces can be the same or different, the two nearest relative surfaces can be parallel or non-parallel, and when the two nearest relative surfaces are not parallel, the thickness dimension refers to the shortest distance between the two nearest relative surfaces. The length dimension and the width dimension of the aerosol generating substrate sheet 10 are both greater than the thickness dimension, wherein the length dimension and the width dimension can be equal or unequal.

[0072] In addition, the length and width dimensions of the aerosol generating matrix sheet 10 are mainly related to the selected aerosol generating device, that is, the length and width dimensions of the aerosol generating matrix sheet 10 can be determined according to the size of the heating chamber in the aerosol generating device for accommodating the aerosol generating product. Therefore, the length and width dimensions of the aerosol generating matrix sheet 10 can be any dimensions that are compatible with the corresponding aerosol generating device.

[0073] Since the aerosol generating matrix sheet 10 has a relatively thin thickness, the aerosol generating matrix sheet 10 is heated more fully during the heating process and has a relatively high utilization efficiency.

[0074] The thickness dimension of the aerosol generating substrate sheet 10 can be adjusted as required, as long as the thickness dimension is smaller than the length dimension and the width dimension.

[0075] Exemplarily, the thickness of the aerosol generating matrix sheet 10 is 0.1 mm to 5 mm (including the endpoint values). For example, the thickness of the aerosol generating matrix sheet 10 can be 0.1 mm, 0.2 mm, 0.5 mm, 1 mm, 1.5 mm, 2 mm, 2.5 mm, 3 mm, 4 mm, 5 mm, etc.

[0076] When the thickness of the aerosol generating matrix sheet 10 is less than 0.1 mm, the manufacturing difficulty of the aerosol generating matrix sheet 10 is relatively high, which is not conducive to production. When the thickness of the aerosol generating matrix sheet 10 is greater than 5 mm, the aerosol generating matrix sheet 10 is easily insufficiently heated during the heating process, resulting in a relatively reduced utilization efficiency. The thickness of the aerosol generating matrix sheet 10 is within the range of 0.1 mm to 5 mm, which is convenient for production and can ensure that the aerosol generating matrix sheet 10 can be fully heated during the heating process.

[0077] Preferably, the thickness of the aerosol-generating substrate sheet 10 may be in the range of 0.2 mm to 3 mm (including end points).

[0078] The specific structure of the aerosol generating matrix sheet 10 is not limited here. For example, in one embodiment, the aerosol generating matrix sheet 10 can be made of an atomizing medium itself, such as a smoke flavoring medium. In other embodiments, the aerosol generating matrix sheet 10 can also include a substrate and an atomizing medium arranged on the substrate. The substrate can be, for example, a high temperature resistant carbon fiber. In this way, by arranging the substrate, the strength of the aerosol generating matrix sheet 10 can be improved, and a certain degree of high temperature can be withstood without generating odor.

[0079] The specific components of the aerosol generating matrix sheet 10 are not limited herein. For example, in one embodiment, the aerosol generating matrix sheet 10 may include plant components, auxiliary components, smoke generating agent components, adhesive components, and the like.

[0080] In one embodiment, the plant component is one or more combinations of powders formed by crushing tobacco raw materials, tobacco leaf fragments, tobacco stems, tobacco dust, and aromatic plants. The plant component is the core source of the flavor of the product. Endogenous substances in the plant component, such as nicotine, enter the human blood through atomization, promote the pituitary gland to produce dopamine, and thus obtain physiological satisfaction.

[0081] In one embodiment, the auxiliary agent component can be one or more combinations of inorganic fillers, lubricants, and emulsifiers. Among them, the inorganic filler includes one or more combinations of heavy calcium carbonate, light calcium carbonate, zeolite, attapulgite, talc, and diatomaceous earth. The inorganic filler can provide a skeleton support for the plant component, and the inorganic filler also has micropores, which can increase the porosity of the wall material after the plant component is formed, thereby increasing the aerosol release rate.

[0082] The lubricant includes one or more combinations of candelilla wax, carnauba wax, shellac, sunflower wax, rice bran, beeswax, stearic acid, and palmitic acid. The lubricant can increase the fluidity of the particles, reduce the friction between the particles, make the overall density of the particle distribution more uniform, and also reduce the pressure required for mold molding and reduce the wear of the mold.

[0083] Emulsifiers include one or more combinations of polyglycerol fatty acid esters, Tween-80, and polyvinyl alcohol. Emulsifiers can slow down the loss of flavor substances during storage to a certain extent, increase the stability of flavor substances, and improve the sensory quality of products. Emulsifiers (also known as surfactants) can reduce the interfacial tension of water-soluble and water-insoluble components in the mixed system, and form a relatively strong film on the surface of the droplets or form a double electric layer on the surface of the droplets due to the charge given by the emulsifier, preventing the droplets from aggregating with each other and maintaining a uniform emulsion. Emulsifying and homogenizing two immiscible components can improve the consistency of product quality.

[0084] The function of the smoke-generating agent component is to generate a large amount of steam when heated, thereby increasing the amount of smoke of the smoking product. In one embodiment, the smoke-generating agent may include, for example: a monohydric alcohol (such as menthol); a polyhydric alcohol (such as propylene glycol, triethylene glycol, 1,3-butylene glycol and glycerol); an ester of a polyhydric alcohol (such as monoacetin, diacetin or triacetin); a monocarboxylic acid; a polycarboxylic acid (such as lauric acid, myristic acid) or an aliphatic ester of a polycarboxylic acid (such as dimethyl dodecanedioate, dimethyl tetradecanedioate, erythritol, 1,3-butylene glycol, tetraethylene glycol, triethyl citrate, propylene carbonate, ethyl laurate, Triactin, meso-erythritol, diacetin mixture, diethyl suberate, triethyl citrate, benzyl benzoate, benzyl phenylacetate, ethyl vanillate, glyceryl tributyrate, lauryl acetate) or one or more combinations thereof.

[0085] In one embodiment, the adhesive component is a natural plant extract, a non-ionized modified viscous polysaccharide, including one or more combinations of tamarind polysaccharide, pullulan, seaweed polysaccharide, locust bean gum, guar gum, and xyloglucan. The adhesive is in close contact with the interface of the product component material by wetting, generating an intermolecular attraction, thereby playing the role of bonding the powder, liquid, etc. of the component material. At the same time, the use of natural plant extracts and non-ionic adhesives can avoid the release of harmful substances such as methanol, formaldehyde, and acrolein caused by colloid modification, thereby improving the safety of the product.

[0086] Please continue reading Figures 1 to 25 The aerosol generating matrix sheet 10 is an integral structure. For example, the aerosol generating matrix sheet 10 can be a particle combination, and the particle combination is a reconstituted tobacco medium, for example, a reconstituted tobacco medium containing components such as a smoke generating agent and tobacco.

[0087] The aerosol-generating matrix sheet 10 can be formed into an integral structure by injection molding, compression molding, extrusion, casting, rolling, etc. Extrusion molding refers to a processing method in which a raw material mixture is added to an extruder, and the material is pushed forward by the screw through the action between the extruder barrel and the screw, and continuously passes through the die to form various cross-section products or semi-finished products.

[0088] The aerosol generating substrate sheet 10 may be a single-layer structure or a multi-layer structure.

[0089] The aerosol generating matrix sheet 10 is an integral structure during heating and suction or after stopping heating, and is not prone to disintegration and falling off, thus solving the problems of the prior art of the thin sheet, filament or loose particle aerosol generating matrix, such as the loosening of thin sheets, the falling off of filament components and particle components, and the difficulty in cleaning.

[0090] It should be noted that the aerosol generating substrate sheet 10 of the present application is different from the flaky aerosol generating substrate in the prior art. The flaky aerosol generating substrate in the prior art is a thin sheet structure formed by combining raw materials such as tobacco stems and cigarette dust through processes such as rolling, thick pulping, and papermaking. The flaky aerosol generating substrate does not have the airway 10a on the aerosol generating substrate sheet 10 of the present application. One or more stacked flaky aerosol generating substrates are rolled into a cylindrical shape, wrapped with an outer packaging layer, and then combined with a functional segment to form an aerosol generating product. Since there are gaps between the multiple layers of flaky media, raw materials such as tobacco stems and cigarette dust will disintegrate and fall off after being heated or stopped being heated. The aerosol generating matrix sheet 10 of the present application is an integral structure with an airway 10a. The aerosol generating matrix sheet 10 does not need to be rolled into a cylindrical shape and does not need to be combined with a functional segment. Most importantly, the aerosol generating matrix sheet 10 of the present application is an integral structure during heated inhalation or after the heating stops, and is not prone to disintegration and falling.

[0091] Please continue reading Figures 1 to 25 The cross-sectional shape of the aerosol generating matrix sheet 10 perpendicular to the thickness direction is not limited. For example, the cross-sectional shape of the aerosol generating matrix sheet 10 perpendicular to the thickness direction can be Fig.10 The circles, polygons (including but not limited to triangles, prisms, trapezoids and Figure 1 square, etc.), oval, Fig.13 The waisted shape shown, Fig.14 The special shapes shown in the figure, among which, an oblong circle refers to a closed figure formed by dividing a circle into two semicircular arcs through the center of the circle and translating them in opposite directions, and connecting the endpoints of the two semicircular arcs with two equal parallel lines. Special shapes refer to other symmetrical or asymmetrical shapes other than the shapes listed above, such as snowflake shapes, etc.

[0092] An aerosol-generating matrix sheet 10 having a circular cross-sectional shape perpendicular to the thickness direction is conducive to the flow and concentration of the aerosol; an aerosol-generating matrix sheet 10 having a square cross-sectional shape perpendicular to the thickness direction is more convenient for extending the length direction and is more suitable for preparing aerosol-generating products with a large number of puffs and / or a large number of puffs.

[0093] Since the thickness of the aerosol generating matrix sheet 10 is relatively thin, the space that can be designed for the volume of the aerosol generating matrix sheet 10 is relatively wide, and an aerosol generating device with multiple heating methods can be matched. For example, the heating method of the heating component arranged in the aerosol generating device can be central heating or circumferential heating. The central heating method refers to the heating component being inserted into the interior of the aerosol generating product (for example, inserted into the central airway hole) to bake and heat the aerosol generating product from the inside to the outside. The circumferential heating method refers to the heating component being arranged at the periphery of the aerosol generating product to bake and heat the aerosol generating product from the outside to the inside. These heating methods can specifically be resistance heating, electromagnetic heating, infrared heating, microwave heating, laser heating, etc., which are not specifically limited here. For example, the heating component can also perform single-sided heating or double-sided heating on the aerosol generating matrix sheet 10. Single-sided heating refers to the heating component heating only from one side of the aerosol generating matrix sheet 10 (for example, one side of the aerosol generating matrix sheet 10 along the thickness direction). During the heating process, the heating component or the aerosol generating matrix sheet 10 can also move. Double-sided heating is similar to single-sided heating, except that double-sided heating heats both sides of the aerosol generating matrix sheet 10. Double-sided heating can reduce the power of a single heating component and increase the service life of the heating component. At the same time, the aerosol generating matrix sheet 10 can be heated more fully, thereby increasing the utilization rate of the aerosol generating matrix sheet 10 and improving the heating uniformity of the aerosol generating matrix sheet 10, thereby improving the puffing consistency.

[0094] The aerosol-generating matrix sheet 10 of the embodiment of the present application can realize aerosol generation in a manner of multiple puffs and instant draw and stop.

[0095] In addition, it should be noted that since the thickness of the aerosol generating matrix sheet 10 is relatively thin, the aerosol generating product is generally not provided with a functional segment that contacts the user's oral cavity. For example, a filter can be provided on the aerosol generating device to replace the functional segment, and a cooling channel can also be provided in the aerosol generating device to cool the aerosol released by the aerosol generating matrix sheet 10.

[0096] Please continue reading Figures 1 to 25 The aerosol generating matrix sheet 10 has at least one air channel 10a, that is, the number of the air channels 10a can be one or more. At least one of the two opposite ends of the air channel 10a along the extension direction is an open end. The open end refers to the end of the air channel 10a that is connected to the outside.

[0097] For example, see Figure 2 , Figure 4 and Figure 6 , both opposite ends of the airway 10a along the extension direction may be open ends.

[0098] For example, see Figure 7 One of the two opposite ends of the airway 10a along the extension direction may be an open end, and the other end may be a closed end that is not connected to the outside.

[0099] Exemplarily, when a plurality of air channels 10a are provided, both opposite ends of all the air channels 10a along the extension direction may be open ends, or one of the opposite ends of all the air channels 10a along the extension direction may be an open end and the other end may be a closed end, or both opposite ends of a portion of the air channels 10a along the extension direction may be open ends, and one of the opposite ends of another portion of the air channels 10a along the extension direction may be an open end and the other end may be a closed end.

[0100] Please continue reading Figures 1 to 25 Among all the air passages 10a, at least one of the air passages 10a extends from one end of the aerosol generating matrix sheet 10 along the first direction Z1 to the other opposite end.

[0101] The first direction Z1 may be any direction of the aerosol generating substrate sheet 10, for example, see Figures 1 to 6 The first direction Z1 may be one of the length direction, width direction and thickness direction of the aerosol generating matrix sheet 10, see Figure 8 The first direction Z1 may also be inclined relative to at least two directions of the length direction, the width direction and the thickness direction of the aerosol generating matrix sheet 10 .

[0102] If the aerosol generating matrix sheet 10 is only provided with one air channel 10a, the air channel 10a needs to extend from one end of the aerosol generating matrix sheet 10 along the first direction Z1 to the other opposite end. If the aerosol generating matrix sheet 10 is provided with multiple air channels 10a, all of the air channels 10a may extend from one end of the aerosol generating matrix sheet 10 along the first direction Z1 to the other opposite end, or one or part of the air channels 10a may extend from one end of the aerosol generating matrix sheet 10 along the first direction Z1 to the other opposite end, and the other air channels 10a may extend from one end of the aerosol generating matrix sheet 10 along the other direction to the other opposite end, wherein the other direction refers to any direction that is not parallel to the first direction Z1.

[0103] For example, see Figure 5 and Figure 6 , Figure 5 and Figure 6 The aerosol generating matrix sheet 10 in the embodiment is provided with a plurality of air passages 10a, each of which extends from one end of the aerosol generating matrix sheet 10 to the other opposite end along the first direction Z1, wherein: Figure 5 and Figure 6The air passage 10a in the aerosol generating matrix sheet 10 extends from one end to the other end in the length direction, that is, Figure 5 and Figure 6 The first direction Z1 is the length direction of the aerosol-generating substrate sheet 10 . Figure 3 and Figure 4 The air passage 10a in the aerosol generating matrix sheet 10 extends from one end in the width direction to the other end opposite thereto, i.e. Figure 3 and Figure 4 The first direction Z1 is the width direction of the aerosol-generating substrate sheet 10 . Figure 1 and Figure 2 The air channel 10a in the aerosol generating matrix sheet 10 extends from one end to the other end in the thickness direction, that is, Figure 1 and Figure 2 The first direction Z1 is the thickness direction of the aerosol-generating substrate sheet 10 .

[0104] For example, see Fig. 9 , Fig. 9 The aerosol generating matrix sheet 10 is also provided with a plurality of air channels 10a, wherein a part of the air channels 10a extends from one end of the aerosol generating matrix sheet 10 along the first direction Z1 to the other opposite end, and another part of the air channels 10a extends from one end of the aerosol generating matrix sheet 10 along the second direction Z2 to the other opposite end, wherein the second direction Z2 intersects with the first direction Z1, that is, the second direction Z2 is any direction that is not parallel to the first direction Z1. Fig. 9 The first direction Z1 is the thickness direction of the aerosol generating matrix sheet 10, and the second direction Z2 is the length direction of the aerosol generating matrix sheet 10. In other embodiments, the first direction Z1 and the second direction Z2 may be a combination of any other two intersecting directions.

[0105] When the aerosol generating matrix sheet 10 is placed in an aerosol generating device for heating, preferably, the first direction Z1 of the aerosol generating matrix sheet 10 can be consistent with the user's inhalation direction, and the user's inhalation direction is also the aerosol extraction direction. The first direction Z1 of the aerosol generating matrix sheet 10 is consistent with the user's inhalation direction, which can facilitate the rapid extraction of aerosol.

[0106] In addition, while the first direction Z1 is consistent with the suction direction, for the airway 10a extending from one end along the first direction Z1 to the other opposite end, both opposite ends of the airway 10a along the extension direction are set as open ends, which is more conducive to reducing the suction resistance of the user.

[0107] For further information, see Figure 1 , Fig.26 and 27The aerosol generating product may be provided with an outer wrapping layer 20 outside the aerosol generating matrix sheet 10. For example, the aerosol generating matrix sheet 10 whose first direction Z1 needs to be consistent with the suction direction is taken as an example. Figure 1 , Fig.26 and 27 The aerosol generating matrix sheet 10 has a first outer surface 10d, a second outer surface 10e and a third outer surface 10f. The first outer surface 10d and the second outer surface 10e are respectively located at opposite ends of the aerosol generating matrix sheet 10 along the first direction Z1, and the third outer surface 10f is located between the first outer surface 10d and the second outer surface 10e. The outer wrapping layer 20 can wrap the third outer surface 10f.

[0108] The material of the outer wrapping layer 20 is not limited, for example, including but not limited to one or more combinations of fiber paper, metal foil, metal foil composite fiber paper, polyethylene composite fiber paper, PE (polyethylene), PBAT (butylene adipate-co-terephthalate) and other materials.

[0109] In some embodiments, the aerosol-generating article may also be provided with only the aerosol-generating substrate sheet 10 , without the functional segment and the outer wrapping layer 20 .

[0110] In some embodiments, the first direction Z1 of the aerosol-generating substrate sheet 10 may also not coincide with the suction direction.

[0111] Please continue reading Figures 1 to 25 The air passage 10a may be arranged inside the aerosol generating matrix sheet 10 or outside the aerosol generating matrix sheet 10. When there are multiple air passages 10a, all of the air passages 10a may be arranged inside the aerosol generating matrix sheet 10 or outside the aerosol generating matrix sheet 10. Alternatively, a part of the air passages 10a may be arranged inside the aerosol generating matrix sheet 10 and another part of the air passages 10a may be arranged outside the aerosol generating matrix sheet 10. The specific arrangement of the air passages 10a will be described in detail in the following embodiments.

[0112] Please continue reading Figure 2 and Fig.12 , the airway 10a may be as follows Figure 2 The straight airway shown is an airway 10a extending in a straight line, or in other words, the extending direction of the straight airway is a straight line.

[0113] The airway 10a may also be Fig.12The spiral airway shown is an airway in which at least part of the area along the extension direction is in a curved shape with a curvature not equal to 0. For example, along the extension direction of the spiral airway, the spiral airway may have a structure in which there are both a curved segment with a curvature not equal to 0 and a straight segment with a curvature of 0, or may have only a curved segment with a curvature not equal to 0 and no straight segment with a curvature of 0. In other words, from the starting point to the end point of the spiral airway along the extension direction, the spiral airway does not need to extend along a straight line.

[0114] When there are multiple air passages 10 a , some of the air passages 10 a may be straight air passages, and other air passages 10 a may be spiral air passages.

[0115] It should be noted that the aerosol generating matrix sheet 10 generally also has certain pores, and the airway 10a described in the embodiment of the present application is different from the pores. The airway 10a belongs to a pore in a macroscopic sense, and the pores belong to a pore in a microscopic sense. The pores include open pores and closed pores. The open pores are pores that are connected to the outside world, and the closed pores are pores that are not connected to the outside world. The cross-sectional area and length and other dimensions of the airway 10a are much larger than those of the pores. The airway 10a is mainly processed, so the cross-sectional area and length and other dimensions of the airway 10a can be changed according to design requirements, and the cross-sectional area and length and other dimensions of the pores are mainly formed naturally during the processing.

[0116] The airway 10a can extend the airflow path and increase the flow speed of the airflow in the aerosol generating matrix sheet 10, thereby increasing the impact force of the airflow and allowing the aerosol to be evenly mixed, thereby improving the extraction efficiency and uniformity of the aerosol in the aerosol generating matrix sheet 10 and enhancing the user's inhalation experience.

[0117] See also Figures 1 to 25 For the air channel 10a arranged inside or outside the aerosol generating matrix sheet 10, for the convenience of description, the air channels 10a located at different positions can be respectively referred to as the first air channel 10a1 and the second air channel 10a2, wherein the first air channel 10a1 is located inside the aerosol generating matrix sheet 10 (the periphery of the first air channel 10a1 is surrounded by the matrix material, that is, the cross-section of the first air channel 10a1 is a closed shape), and the second air channel 10a2 is located outside the aerosol generating matrix sheet 10 (one side of the second air channel 10a2 is a gap connecting the matrix material with the outside, that is, the cross-section of the second air channel 10a2 is a non-closed shape).

[0118] The aerosol-generating substrate sheet 10 may be Figure 1 and Figure 2 As shown, only the first airway 10a1 is provided, but it is also possible to Fig.14 As shown, only the second airway 10a2 is provided, and it is also possible to Fig.15 and Fig.16As shown, a first air passage 10a1 and a second air passage 10a2 are provided at the same time.

[0119] The cross-sectional shape of the first air channel 10a1 is not limited. For example, the cross-sectional shape of the first air channel 10a1 can be circular, polygonal (including but not limited to triangle, square, prism, trapezoid, etc.), elliptical, oval, irregular, etc.

[0120] When a plurality of first air channels 10 a 1 are provided inside the aerosol-generating matrix sheet 10 , the cross-sectional area and cross-sectional shape of each first air channel 10 a 1 may be set as required.

[0121] For example, see Figures 1 to 6 The cross-sectional areas of all the first air passages 10a1 may be completely identical, and the cross-sectional shapes of all the first air passages 10a1 may also be completely identical.

[0122] For example, see Fig. 22 Among all the first air channels 10a1, the cross-sectional area of ​​at least one of the first air channels 10a1 may be different from the cross-sectional areas of the other first air channels 10a1, that is, the cross-sectional areas of the first air channels 10a1 on the same aerosol generating matrix sheet 10 may not be completely the same.

[0123] Exemplarily, among the multiple first air channels 10a1, the cross-sectional shape of at least one of the first air channels 10a1 may be different from the cross-sectional shapes of the other first air channels 10a1, that is, the cross-sectional shapes of the first air channels 10a1 on the same aerosol generating matrix sheet 10 may not be completely the same.

[0124] The second air channel 10a2 can be formed in various ways. For example, see Fig.14 and Fig.15 The aerosol generating matrix sheet 10 may include a main body 11 and a plurality of protrusions 12 , wherein the protrusions 12 are arranged at intervals on the circumference of the main body 11 , and the intervals between two adjacent protrusions 12 form second air passages 10 a 2 .

[0125] The number of the protrusions 12 may be two or more, as long as the interval between two adjacent protrusions 12 can form the second air channel 10 a 2 .

[0126] For example, see Fig.16Part of the outer surface of the aerosol-generating matrix sheet 10 may also be recessed to form the second air passage 10a2. The difference between the aerosol-generating matrix sheet 10 in which the second air passage 10a2 is formed by recesses and the aerosol-generating matrix sheet 10 in which the second air passage 10a2 is formed by protrusions 12 is that the aerosol-generating matrix sheet 10 in which the second air passage 10a2 is formed by recesses does not have a distinct main body 11 and a plurality of protrusions 12.

[0127] There is no limitation on the cross-sectional shapes of the second air channel 10a2 formed at the interval between two adjacent protrusions 12 and the second air channel 10a2 formed by the depression of part of the outer surface of the aerosol generating matrix sheet 10. For example, the cross-sectional shape of the second air channel 10a2 can be one of semicircular, semi-elliptical, polygonal (including but not limited to triangle, square, prism, trapezoid, etc.) and irregular.

[0128] The second air passage 10a2 formed at the interval between two adjacent protrusions 12 and the second air passage 10a2 formed by the depression of part of the outer surface of the aerosol generating matrix sheet 10 can increase the surface area of ​​the aerosol generating matrix sheet 10, increase the number of air passages 10a on the surface of the aerosol generating matrix sheet 10, and facilitate the rapid release of aerosols. At the same time, it can also increase the heat conduction efficiency, which is more conducive to the extraction of effective ingredients and the consistency of sensory perception. In addition, if circumferential heating is adopted, the user's puffing experience can also be improved by adjusting the heating rate.

[0129] In addition, for the aerosol generating matrix sheet 10 having only the second air channel 10a2 and no first air channel 10a1, for example Fig.14 The aerosol generating substrate sheet 10 shown, alternatively, is provided with first air passages 10a1, but the sum of the cross-sectional areas of all the first air passages 10a1 is relatively small, for example Fig.15 The aerosol generating matrix sheet 10 shown has a volume density that tends to increase gradually from the outside to the inside (volume density is the ratio of the mass to the volume of the aerosol generating matrix sheet 10, wherein the volume includes the physical structure of the aerosol generating matrix sheet 10 and the volume of all the airways 10a and microscopic pores on the aerosol generating matrix sheet 10). During the circumferential heating process of such aerosol generating matrix sheet 10, the outer side of the aerosol generating matrix sheet 10 is heated the fastest, and the aerosol can be released quickly and extracted through the second airway 10a2, thereby increasing the amount of smoke in the first three puffs and improving the consistency of the sensory organs.

[0130] For example, see Fig.17 and Fig.18The aerosol-generating matrix sheet 10 may be in a wave shape with crests 10b and troughs 10c, and at least the space on the concave side of the crests 10b and the space on the concave side of the troughs 10c of the aerosol-generating matrix sheet 10 are respectively configured as the second air passages 10a2. In other words, at least the space on the concave side of the crests 10b and the space on the concave side of the troughs 10c of the aerosol-generating matrix sheet 10 can be used as the second air passages 10a2.

[0131] It should be noted that if the outer wrapping layer 20 is provided on the outer periphery of the aerosol generating matrix sheet 10, the outer wrapping layer 20 needs to be spaced apart from the outer surface of the aerosol generating matrix sheet 10 located on the inner concave side of the wave crest 10b and the outer surface of the wave trough 10c. For example, the outer wrapping layer 20 may only contact the outer surface of the aerosol generating matrix sheet 10 located at the highest point of the wave crest 10b and the outer surface of the aerosol generating matrix sheet 10 located at the lowest point of the wave trough 10c. If the outer wrapping layer 20 is not provided on the outer periphery of the aerosol generating matrix sheet 10, when the aerosol generating matrix sheet 10 is placed in an aerosol generating device, the side wall of the heating chamber of the aerosol generating device for accommodating the aerosol generating matrix sheet 10 needs to be spaced apart from the outer surface of the aerosol generating matrix sheet 10 located on the inner concave side of the wave shape. For example, the side wall of the heating chamber may only contact the outer surface of the aerosol generating matrix sheet 10 located at the highest point of the wave crest 10b and the outer surface of the wave trough 10c. Thus, at least the space located on the concave side of the peak 10 b and the space located on the concave side of the trough 10 c of the aerosol generating matrix sheet 10 can be used as the second air passage 10 a 2 .

[0132] The aerosol generating matrix sheet 10 is configured to be wavy, and at least the space on the concave side of the wave crest 10b and the space on the concave side of the wave trough 10c of the aerosol generating matrix sheet 10 are respectively configured to form a second airway 10a2, which is beneficial to the release and extraction of aerosol. At the same time, the wavy shape has a larger extendable space, which is suitable for preparing aerosol generating products with a large or large number of puffs.

[0133] Also, see Fig.18 If the first air channel 10 a 1 is provided inside the wavy aerosol generating matrix sheet 10 , the release and extraction of aerosol can be further enhanced, thereby improving the utilization rate of the aerosol generating matrix sheet 10 .

[0134] For example, see Fig.19 and Fig. 20 The aerosol generating matrix sheet 10 may be in a spiral shape with multiple turns, and two adjacent turns of the aerosol generating matrix sheet 10 are spaced apart so that a second air channel 10a2 is formed at the spaced apart positions.

[0135] For an aerosol-generating matrix sheet 10 with multiple turns of spiral, the first direction Z1 is perpendicular to the spiral projection of the aerosol-generating matrix sheet 10, or in other words, on a projection plane perpendicular to the first direction Z1, the projection of the aerosol-generating matrix sheet 10 is in a spiral shape with multiple turns.

[0136] For the aerosol-generating matrix sheet 10 with multiple turns of spiral shape, the second air channel 10a2 is also spiral-shaped. The heat conduction of the spiral-shaped second air channel 10a2 is more uniform, which is beneficial to the consistency of sensory perception.

[0137] Also, see Fig. 20 If the spiral aerosol generating matrix sheet 10 is provided with a first air channel 10 a 1 , the release and extraction of aerosols can be further enhanced, thereby improving the utilization rate of the aerosol generating matrix sheet 10 .

[0138] Further, for an aerosol generating matrix sheet 10 having a plurality of first air channels 10a1 extending from one end of the aerosol generating matrix sheet 10 along the first direction Z1 to the other end opposite thereto, these first air channels 10a1 may be arranged in a variety of ways, which will be illustrated by the following embodiments. It should be noted that the first air channels 10a1 described in the following embodiments are all first air channels 10a1 extending from one end of the aerosol generating matrix sheet 10 along the first direction Z1 to the other end opposite thereto, but it does not mean that all first air channels 10a1 inside the aerosol generating matrix sheet 10 can only extend from one end of the aerosol generating matrix sheet 10 along the first direction Z1 to the other end opposite thereto. In some embodiments, the aerosol generating matrix sheet 10 may also be provided with first air channels 10a1 extending from one end of the aerosol generating matrix sheet 10 along the second direction Z2 to the other end opposite thereto.

[0139] In one embodiment, please refer to Fig.11 At least three first air channels 10a1 may be arranged inside the aerosol generating matrix sheet 10. Among all the first air channels 10a1, one first air channel 10a1 is located at the center of the aerosol generating matrix sheet 10, and the other first air channels 10a1 surround the first air channel 10a1 located at the center. The cross-sectional area of ​​the first air channel 10a1 located at the center is greater than the cross-sectional area of ​​any other first air channel 10a1.

[0140] That is, a first air channel 10a1 with a relatively large cross-sectional area may be provided at the center of the aerosol generating matrix sheet 10. Such an aerosol generating matrix sheet 10 may be adapted to a variety of heating methods, such as central heating and / or peripheral heating.

[0141] In one embodiment, please refer to Fig.13 and Fig.21, multiple first airways 10a1 can be arranged to form multiple trajectory lines, wherein each first airway 10a1 in a single trajectory line is arranged along a third direction Z3, and multiple trajectory lines are arranged along a fourth direction Z4, wherein the third direction Z3 and the fourth direction Z4 intersect, and the plane where the third direction Z3 and the fourth direction Z4 are located is perpendicular to the first direction Z1.

[0142] For example, see Fig.13 , each first air channel 10a1 in a single trajectory line can be arranged in a straight line along the third direction Z3, and multiple trajectory lines can be arranged along a fourth direction Z4 perpendicular to the third direction Z3. In other words, multiple first air channels 10a1 can be arranged as Fig.13 In other embodiments, the first air channels 10a1 may also be arranged in a matrix shape. Fig.16 The grid shape shown.

[0143] For example, see Fig.21 The first air channels 10 a 1 in a single trajectory line may be arranged along a circumferential direction around the center of the aerosol generating matrix sheet 10 , and the plurality of trajectory lines may be arranged along a radial direction of the aerosol generating matrix sheet 10 .

[0144] The circumferential direction around the center of the aerosol generating matrix sheet 10 is equivalent to the third direction Z3, and the radial direction of the aerosol generating matrix sheet 10 is equivalent to the fourth direction Z4, that is, the plurality of first air channels 10a1 may be arranged in a ring shape.

[0145] See also Fig.13 , the first airways 10a1 in the multiple trajectory lines can be evenly distributed, that is, all the first airways 10a1 are exactly the same, the first airways 10a1 in a single trajectory line are equidistantly arranged, and the multiple trajectory lines are also equidistantly arranged.

[0146] The uniform distribution of the first air channels 10a1 can make the mass per unit volume of the region where the aerosol generating matrix sheet 10 is provided with the first air channels 10a1 relatively uniform. Thus, during the heating and inhalation process, the uniformity of aerosol release from the aerosol generating matrix sheet 10 can be better improved, thereby improving the consistency of inhalation.

[0147] In other embodiments, the first air channels 10a1 in the multiple trajectory lines may also be non-uniformly distributed. The non-uniformly distributed first air channels 10a1 combined with different heating methods can achieve uniform heating of the aerosol-generating matrix sheet 10 and consistency of aerosols in the first few puffs and the last few puffs of suction.

[0148] For example, taking the case where a plurality of first air passages 10a1 are arranged in a ring shape, for example, see Fig. 22, each first air passage 10a1 in a single trajectory is repeatedly arranged, and repeated arrangement means that each first air passage 10a1 in the same exhaust passage 10a is exactly the same. From the center of the aerosol generating matrix sheet 10 to the radially outer side of the aerosol generating matrix sheet 10, the cross-sectional area of ​​the first air passage 10a1 in each trajectory can be gradually increased. In other words, the cross-sectional area of ​​the first air passage 10a1 in different trajectory lines is different, and the farther away from the center of the aerosol generating matrix sheet 10, the larger the cross-sectional area of ​​the first air passage 10a1.

[0149] For example, see Fig.23 , the first air passages 10a1 in a single trajectory are repeatedly arranged, and the spacing between the first air passages 10a1 in two adjacent trajectory lines can be gradually reduced from the center of the aerosol generating matrix sheet 10 to the outer side of the aerosol generating matrix sheet 10 in the radial direction. In other words, the plurality of trajectory lines are not arranged at equal distances, and the farther from the center of the aerosol generating matrix sheet 10, the smaller the spacing between the first air passages 10a1 in two adjacent trajectory lines.

[0150] The aerosol generating matrix sheet 10 with a larger cross-sectional area of ​​the first air channel 10a1 which is farther away from the center of the aerosol generating matrix sheet 10, and the aerosol generating matrix sheet 10 with a smaller spacing between the first air channels 10a1 in two adjacent trajectory lines which are farther away from the center of the aerosol generating matrix sheet 10, are closer to the central area of ​​the aerosol generating matrix sheet 10, and have a larger mass per unit volume of the aerosol generating matrix sheet 10. When these two types of aerosol generating matrix sheets 10 are adapted to the central heating method, the time required for heat to be conducted from the inside to the outside is longer, thereby extending the time for the outer wall of the aerosol generating matrix sheet 10 to be heated, improving the uniformity of aerosol release from the aerosol generating matrix sheet 10, and increasing the puffing time / number of puffs. At the same time, the consistency of aerosol release can be maintained, providing users with a comfortable puffing experience.

[0151] Continuing with the example of multiple first air passages 10a1 arranged in a ring shape, for example, see Fig.24 , the first air passages 10a1 in a single trajectory are repeatedly arranged, and the cross-sectional areas of the first air passages 10a1 in each trajectory can gradually decrease from the center of the aerosol generating matrix sheet 10 to the radially outer side of the aerosol generating matrix sheet 10. In other words, the cross-sectional areas of the first air passages 10a1 in different trajectory lines are different, and the farther from the center of the aerosol generating matrix sheet 10, the smaller the cross-sectional areas of the first air passages 10a1.

[0152] For example, see Fig.25, the first air passages 10a1 in a single trajectory are repeatedly arranged, and the spacing between the first air passages 10a1 in two adjacent trajectory lines can gradually increase from the center of the aerosol generating matrix sheet 10 to the outer side of the aerosol generating matrix sheet 10 in the radial direction. In other words, the plurality of trajectory lines are not arranged at equal distances, and the farther from the center of the aerosol generating matrix sheet 10, the larger the spacing between the first air passages 10a1 in two adjacent trajectory lines.

[0153] The aerosol generating matrix sheet 10 that is farther away from the center of the aerosol generating matrix sheet 10 and has a smaller cross-sectional area of ​​the first air channel 10a1, and the aerosol generating matrix sheet 10 that is farther away from the center of the aerosol generating matrix sheet 10 and has a larger spacing between the first air channels 10a1 in two adjacent trajectory lines, are closer to the outer wall of the aerosol generating matrix sheet 10 and have a larger mass per unit volume of the aerosol generating matrix sheet 10. When these two types of aerosol generating matrix sheets 10 are adapted to the circumferential heating method, the time required for heat to be conducted from the outside to the inside is longer, thereby extending the time for the center position of the aerosol generating matrix sheet 10 to be heated, improving the uniformity of aerosol release from the aerosol generating matrix sheet 10, and increasing the puffing time / number of puffs. At the same time, the consistency of aerosol release can be maintained, providing users with a comfortable puffing experience.

[0154] It should be noted that the non-uniform distribution modes of the first airways 10a1 in multiple trajectory lines are not limited to the above four types. Various adjustments can be made as needed. For example, the spacing between the first airways 10a1 in a single trajectory line can be changed, the cross-sectional shapes of the first airways 10a1 in different rows can be changed, and the above-mentioned implementation methods of cross-sectional area changes can be combined with the implementation methods of spacing changes, etc.

[0155] In addition, for multiple trajectory lines arranged in a non-circular shape, such as Fig.10 and Fig.13 The arrangement shown may also be arranged in a non-uniform distribution manner as described in the above embodiment.

[0156] In some embodiments, the plurality of first air channels 10a1 inside the aerosol generating matrix sheet 10 may also be randomly distributed. Among the plurality of randomly distributed first air channels 10a1, the cross-sectional shapes of the first air channels 10a1 may be completely identical, or the cross-sectional shapes of at least two of the first air channels 10a1 may be different, and similarly, the cross-sectional areas of the first air channels 10a1 may be completely identical, or the cross-sectional areas of at least two of the first air channels 10a1 may be different.

[0157] In addition, for the aerosol generating matrix sheet 10 having a plurality of first air channels 10a1 disposed therein, whether the arrangement is in the form of a plurality of trajectory lines or in the form of a random distribution, in one embodiment, please refer to Figure 1 and Fig.10 The first air channels 10a1 can be distributed in various regions inside the aerosol generating matrix sheet 10, that is, almost every region inside the aerosol generating matrix sheet 10 is provided with a first air channel 10a1, and there is no obvious region without a first air channel 10a1.

[0158] In another embodiment, see Fig.16 The aerosol generating matrix sheet 10 has a first region 10g and a second region 10h inside, and the first air passages 10a1 may be distributed in the first region 10g, that is, the first air passages 10a1 may be provided only in the first region 10g, while the second region 10h may not be provided with the first air passages 10a1. The number and position of the first region 10g and the second region 10h may be determined as required and are not limited here.

[0159] The aerosol-generating matrix sheet 10 of the embodiment of the present application is an integrated structure with a thickness of 0.1 mm to 5 mm, which is relatively small, and the aerosol-generating matrix sheet 10 is a porous structure with at least one airway 10a. During the heating process, the aerosol-generating matrix sheet 10 heats up quickly, and the aerosol release rate is also fast, which is more suitable for the pump-and-stop mode. In addition, the volume of the aerosol-generating matrix sheet 10 can be designed in a wide space, and the heating method that can be adapted is diverse. In addition to conventional circumferential heating and central heating, single-sided heating or double-sided heating can also be used. It can be seen that the aerosol-generating matrix sheet 10 of the embodiment of the present application can not only improve the aerosol extraction efficiency of the aerosol-generating product, but also can be adapted to a variety of heating methods.

[0160] In the description of the present application, the description with reference to the terms "in one embodiment", "in some embodiments", "in other embodiments", "in yet other embodiments", or "exemplary" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the embodiments of the present application. In the present application, the schematic representation of the above terms does 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. In addition, those skilled in the art may combine the different embodiments or examples described in the present application and the features of the different embodiments or examples without contradiction.

[0161] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application are included in the protection scope of the present application.

Claims

1. An aerosol generating matrix sheet, characterized in that The aerosol generating matrix sheet is an integral structure having at least one air channel, wherein the at least one air channel extends from one end of the aerosol generating matrix sheet along a first direction to the other opposite end, and at least one of the two opposite ends of the at least one air channel along the extension direction is an open end.

2. The aerosol generating matrix sheet according to claim 1, characterized in that The aerosol generating matrix sheet has a thickness of 0.1 mm to 5 mm.

3. The aerosol generating matrix sheet according to claim 1 or 2, characterized in that The number of the airways is multiple; Each of the air passages extends from one end of the aerosol generating matrix sheet along the first direction to the other opposite end; or, A portion of the air passage extends from one end of the aerosol generating matrix sheet along the first direction to the other opposite end, and another portion of the air passage extends from one end of the aerosol generating matrix sheet along the second direction to the other opposite end, wherein the second direction intersects with the first direction.

4. The aerosol generating substrate sheet according to claim 1 or 2, characterized in that The first direction is one of the length direction, width direction and thickness direction of the aerosol generating substrate sheet; or, The first direction is arranged obliquely relative to at least two directions of the length direction, the width direction and the thickness direction of the aerosol-generating substrate sheet.

5. The aerosol generating matrix sheet according to claim 1 or 2, characterized in that Both opposite ends of the airway along the extension direction are open ends.

6. The aerosol generating substrate sheet according to claim 1 or 2, characterized in that The air channel is multiple and includes at least one of a first air channel and a second air channel, wherein the first air channel is located inside the aerosol-generating matrix sheet, and the second air channel is located outside the aerosol-generating matrix sheet.

7. The aerosol-generating substrate sheet according to claim 6, characterized in that The cross-sectional shape of the first airway is one of a circle, an ellipse, an oval, a polygon and an irregular shape.

8. The aerosol-generating substrate sheet according to claim 6, characterized in that The aerosol generating matrix sheet is provided with a plurality of the first air channels inside; Among all the first airways, a cross-sectional area of ​​at least one of the first airways is different from the cross-sectional areas of the other first airways; and / or, Among all the first air channels, a cross-sectional shape of at least one of the first air channels is different from the cross-sectional shapes of the other first air channels.

9. The aerosol-generating substrate sheet according to claim 6, wherein: The aerosol generating matrix sheet comprises a main body and a plurality of protrusions, each of the protrusions is arranged at intervals on the circumference of the main body, and the second air channel is formed at the interval between two adjacent protrusions; or, A portion of the outer surface of the aerosol-generating substrate sheet is recessed to form the second air channel.

10. The aerosol-generating substrate sheet according to claim 9, wherein The cross-sectional shape of the second air channel is one of a semicircular shape, a semi-elliptical shape, a polygonal shape and an irregular shape.

11. The aerosol-generating substrate sheet according to claim 6, wherein: The aerosol-generating matrix sheet is in a wave shape with wave crests and wave troughs, and at least the space on the concave side of the wave crests and the space on the concave side of the wave troughs of the aerosol-generating matrix sheet are respectively configured as the second air channels.

12. The aerosol-generating substrate sheet according to claim 6, wherein: The aerosol generating matrix sheet is in a spiral shape with multiple turns, and two adjacent turns of the aerosol generating matrix sheet are arranged at intervals, so that the second air channel is formed at the intervals.

13. The aerosol-generating substrate sheet according to claim 6, wherein: The aerosol generating matrix sheet has a plurality of the first air channels extending from one end of the aerosol generating matrix sheet along the first direction to the other opposite end; Multiple first airways are arranged to form multiple trajectory lines, wherein each of the first airways in a single trajectory line is arranged along a third direction, and multiple trajectory lines are arranged along a fourth direction, wherein the third direction intersects with the fourth direction, and the plane where the third direction and the fourth direction are located is perpendicular to the first direction.

14. The aerosol-generating substrate sheet according to claim 13, wherein The first airways in the plurality of trajectory lines are evenly distributed.

15. The aerosol-generating substrate sheet of claim 13, wherein: The first airways in a single trajectory line are arranged in a straight line along the third direction, and a plurality of trajectory lines are arranged along the fourth direction perpendicular to the third direction.

16. The aerosol-generating substrate sheet of claim 13, wherein: The first air channels in a single trajectory are arranged along a circumferential direction around the center of the aerosol generating matrix sheet, and a plurality of trajectory lines are arranged along a radial direction of the aerosol generating matrix sheet.

17. The aerosol-generating substrate sheet of claim 13, wherein: The first air channels in a single trajectory are repeatedly arranged, and the cross-sectional area of ​​the first air channels in each trajectory gradually increases or decreases from the center of the aerosol generating matrix sheet to the radial outer side of the aerosol generating matrix sheet.

18. The aerosol-generating substrate sheet of claim 13, wherein: The first air channels in a single trajectory are repeatedly arranged, and the distance between the first air channels in two adjacent trajectory lines gradually increases or decreases from the center of the aerosol generating matrix sheet to the radial outer side of the aerosol generating matrix sheet.

19. The aerosol-generating substrate sheet of claim 6, wherein: The aerosol generating matrix sheet has a plurality of first air channels extending from one end of the aerosol generating matrix sheet to the other opposite end along the first direction, and the first air channels are randomly distributed.

20. The aerosol-generating substrate sheet of claim 6, wherein: The aerosol generating matrix sheet has a plurality of the first air channels extending from one end of the aerosol generating matrix sheet along the first direction to the other opposite end; Each of the first air channels is distributed in each area inside the aerosol generating matrix sheet; or, The aerosol generating substrate sheet has a first region and a second region therein, and each of the first air channels is distributed in the first region.

21. The aerosol-generating substrate sheet of claim 6, wherein: The aerosol generating matrix sheet has at least three first air channels extending from one end of the aerosol generating matrix sheet along the first direction to the other opposite end; among all the first air channels, one first air channel is located at the center of the aerosol generating matrix sheet, and the other first air channels surround the first air channel located at the center, and the cross-sectional area of ​​the first air channel located at the center is larger than the cross-sectional area of ​​any other first air channels.

22. The aerosol-generating substrate sheet according to claim 1 or 2, characterized in that The airway is a straight airway extending in a straight line; or, The airway is a spiral airway, and at least a portion of the spiral airway along the extension direction is in a curved shape with a curvature that is not zero.

23. The aerosol-generating substrate sheet according to claim 1 or 2, characterized in that The cross-sectional shape of the aerosol generating matrix sheet perpendicular to the thickness direction is one of circular, elliptical, oval, polygonal and irregular.

24. An aerosol generating article, characterized in that include: An aerosol-generating substrate sheet according to any one of claims 1 to 23.

25. An aerosol-generating article according to claim 24, characterized in that The aerosol generating matrix sheet has a first outer surface, a second outer surface and a third outer surface, the first outer surface and the second outer surface are respectively located at opposite ends of the aerosol generating matrix sheet along the first direction, the third outer surface is located between the first outer surface and the second outer surface, and the aerosol generating product includes an outer wrapping layer, and the outer wrapping layer wraps the third outer surface.

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