Aerosol-generating article, preparation method and aerosol-generating system

Abstract

The present application belongs to the technical field of aerosol generation. Disclosed are an aerosol-generating article, a preparation method and an aerosol-generating system. The preparation method comprises: adhering a flavor substance to a carrier to form a flavor-carrying portion, wherein the flavor substance is in powder form; and providing a vapor-generating portion, and placing the flavor-carrying portion in a region close to the vapor-generating portion for processing, thereby obtaining the aerosol-generating article.

Description

Aerosol-generating article, method of manufacture and aerosol-generating system

[0001] Cross-reference to related applications

[0002] This application claims priority to Chinese Patent Application No. 202411365022.8, filed on September 27, 2024, entitled “Aerosol-generating article, method of manufacture and aerosol-generating system” and priority to Chinese Patent Application No. 202422374716.X, filed on September 27, 2024, entitled “Aerosol-generating article and aerosol-generating system”, the entire contents of which are incorporated herein by reference. TECHNICAL FIELD

[0003] The present application relates to the technical field of aerosol generation, in particular to an aerosol-generating article, a method of manufacture and an aerosol-generating system. BACKGROUND

[0004] Flavoring can be added to the aerosol-generating article, and the flavoring mixed into the aerosol after volatilization can enrich the aroma of the aerosol. In the related art, the flavoring is mostly in the form of essential oil, and the flavoring is easy to volatilize after the aerosol-generating article is opened. If the aerosol-generating article is used again after a long opening time, the flavoring may have been completely volatilized or left in a small amount, resulting in inconsistent taste of the aerosol generated by the aerosol-generating article in the early stage before opening and the aerosol generated in the late stage after opening. In addition, when generating the aerosol by heating the aerosol-generating article, the essential oil-shaped flavoring volatilizes quickly when heated, and the aerosol-generating article contains more flavoring in the early stage of aerosol generation, and the aroma is more concentrated. In the later period, due to the volatilization of the flavoring, the aerosol-generating article contains less flavoring, and even the flavoring has completely volatilized in the early stage, so the aroma is lighter, resulting in poor consistency of the taste of the aerosol in the entire use process. SUMMARY

[0005] The present application provides an aerosol-generating article, a method of manufacture and an aerosol-generating system, which can solve the problem of poor consistency of the taste of the aerosol.

[0006] To solve the above technical problem, the present application provides a method of manufacturing an aerosol-generating article, the method comprising: attaching a flavoring substance to a carrier to form a flavor-carrying part, wherein the flavoring substance is in a powder form; providing a smoke-generating part, and placing the flavor-carrying part in a vicinity of the smoke-generating part to obtain the aerosol-generating article.

[0007] In an embodiment, the step of attaching the flavoring substance to the carrier to form the flavor-carrying part comprises: using a porous medium as the carrier, and spraying the flavoring substance to the carrier to disperse and adsorb the flavoring substance in the pores of the carrier.

[0008] In an embodiment, the flavoring substance is attached to the carrier to form the flavoring part, including: using a gel as the carrier, adding the flavoring substance into the gel, stirring to disperse the flavoring substance in the gel; forming the gel containing the flavoring substance into a film or a sheet, and curing and shaping.

[0009] In an embodiment, the flavoring substance is attached to the carrier to form the flavoring part, further including: winding the cured and shaped gel into a rod shape, or folding and gathering the cured and shaped gel into a rod shape.

[0010] In an embodiment, a gap is left in the flavoring part, and the gap penetrates the flavoring part along the direction of the airflow in use.

[0011] In an embodiment, the method for preparing the flavoring substance includes: adding a capsule wall raw material and water into a container, and stirring and heating; adding a flavoring core material into the container, and stirring the mixture for a preset time to allow the capsule wall raw material to fully contact and embed the flavoring core material; refrigerating and standing the mixture to obtain a precipitate, and filtering, washing, and drying the precipitate to obtain the flavoring substance in the form of microcapsules; wherein the capsule wall raw material includes at least one of chitosan, pectin, gelatin, or cyclodextrin, and the flavoring core material is in a liquid state, a solid state, or a solid-liquid mixed state.

[0012] In an embodiment, the aerosol generating article is processed by placing the flavoring part in the vicinity of the smoking part, including: providing a wrapping piece, placing the flavoring part on one side close to the smoking part, and wrapping the wrapping piece around the outer periphery of the flavoring part and the smoking part.

[0013] In an embodiment, the flavoring substance is attached to the carrier to form the flavoring part, further including: providing a blocking piece, and blocking the blocking piece at one end of the carrier; and / or the aerosol generating article is processed by placing the flavoring part in the vicinity of the smoking part, further including: placing the flavoring part on the downstream side of the smoking part, or placing the flavoring part on the upstream side of the smoking part; and / or providing a filtering part, and placing the filtering part downstream of the smoking part and the flavoring part.

[0014] Another aspect of the present application provides an aerosol generating article, including a smoking part, a flavoring part, and a wrapping piece, the wrapping piece wrapping the smoking part and the flavoring part, and the flavoring part being arranged adjacent to the smoking part; the flavoring part including a flavoring substance and a carrier, the flavoring substance being in a powder form, and the flavoring substance being attached to the carrier.

[0015] In an embodiment, the carrier is a porous medium, and the flavoring substance is dispersed and adsorbed in the pores of the carrier.

[0016] In an embodiment, the carrier includes one of cotton, fiber, activated carbon, silicon dioxide, or a polymer resin.

[0017] In an embodiment, the carrier is a gel, the carrier is in a film or a sheet form, and the flavoring substance is dispersed and fixed on the gel.

[0018] In an embodiment, the gel is wound into a rod shape, or the gel is folded and gathered into a rod shape; and / or, the flavor carrier has a gap therein, the gap extends through the flavor carrier along a direction of an airflow in use.

[0019] In an embodiment, the flavoring substance is a microcapsule flavorant.

[0020] In an embodiment, the microcapsule flavorant comprises a capsule wall and a flavor core embedded in the capsule wall.

[0021] The microcapsule flavorant has a particle size of 1-1000 μm.

[0022] In an embodiment, the capsule wall comprises one of a chitosan capsule wall, a pectin capsule wall, a gelatin capsule wall or a cyclodextrin capsule wall, and the flavor core is in a liquid state, a solid state or a solid-liquid mixed state.

[0023] In an embodiment, the aerosol generating article comprises a filter wrapped by a wrapping member; the aerosol generating article has opposite proximal and distal lip ends, the flavor carrier and the smoking portion are arranged at the distal lip end, the flavor carrier is arranged at a lower side or an upper side of the smoking portion, and the filter is arranged at the proximal lip end; and / or, the aerosol generating article further comprises a blocking member, the blocking member is arranged at an end of the flavor carrier away from the proximal lip end.

[0024] In still another aspect, the present application provides an aerosol generating system, comprising an aerosol generating device and an aerosol generating article as described above; the aerosol generating device is provided with a receiving cavity for inserting the aerosol generating article; the aerosol generating device comprises a heating member arranged upstream of the receiving cavity and configured to heat an airflow entering the receiving cavity, the airflow being capable of heating the smoking portion and the flavor carrier when flowing through the smoking portion and the flavor carrier, and an auxiliary heating member arranged at a peripheral side of the flavor carrier and the smoking portion and configured to heat the flavor carrier and the smoking portion from the peripheral side of the flavor carrier and the smoking portion.

[0025] The preparation method of the aerosol generating article provided by the present application, the flavoring substance is attached to the carrier to form the flavor carrier, wherein the flavoring substance is in a powder state, the setting of the flavoring substance in a solid state enables the flavoring substance to have better stability and not to be easily volatilized at room temperature, and the flavoring substance is volatilized slower than an essential oil-shaped flavorant in a heating process, thereby delaying the attenuation of the taste of the aerosol and improving the taste consistency of the aerosol; and the flavor carrier is arranged in a vicinity of the smoking portion, and the flavoring substance can be volatilized due to sufficient temperature in the vicinity of the smoking portion, so that the flavoring substance can be continuously and stably released under the action of heat energy, thereby further improving the taste consistency of the aerosol. BRIEF DESCRIPTION OF DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments will be briefly introduced. Obviously, the drawings in the following description only constitute some embodiments of the present application, and for those skilled in the art, other drawings can be obtained based on these drawings without any creative effort.

[0027] Fig. 1 is a schematic diagram of a cross-sectional structure of an aerosol generating article according to an embodiment of the present application;

[0028] Fig. 2 is a schematic diagram of a structure of a flavor carrying part according to an embodiment of the present application;

[0029] Fig. 3 is a schematic diagram of a cross-sectional structure of a microcapsule fragrance according to an embodiment of the present application;

[0030] Fig. 4 is a schematic diagram of a cross-sectional structure of an aerosol generating article according to an embodiment of the present application, in which a carrier is a gel, viewed from one angle;

[0031] Fig. 5 is a schematic diagram of a cross-sectional structure of an aerosol generating article according to an embodiment of the present application, in which a carrier is a gel, viewed from another angle;

[0032] Fig. 6 is a schematic diagram of a cross-sectional structure of an aerosol generating article according to another embodiment of the present application, in which a carrier is a gel, viewed from one angle;

[0033] Fig. 7 is a schematic diagram of a cross-sectional structure of an aerosol generating article according to another embodiment of the present application, in which a carrier is a gel, viewed from another angle;

[0034] Fig. 8 is a schematic diagram of a flow of a method for preparing an aerosol generating article according to an embodiment of the present application;

[0035] Fig. 9 is a schematic diagram of a flow of a method for preparing a flavor carrying part according to an embodiment of the present application;

[0036] Fig. 10 is a schematic diagram of a flow of a method for preparing a flavor carrying part according to another embodiment of the present application;

[0037] Fig. 11 is a schematic diagram of a structure of a method for preparing a flavor carrying part according to an embodiment of the present application;

[0038] Fig. 12 is a schematic diagram of a structure of a method for preparing a flavor carrying part according to another embodiment of the present application;

[0039] Fig. 13 is a schematic diagram of a flow of a method for preparing a microcapsule fragrance according to an embodiment of the present application;

[0040] Fig. 14 is a schematic diagram of infrared test results of leaf alcohol, β-cyclodextrin and a microcapsule fragrance according to an embodiment of the present application;

[0041] Fig. 15 is a thermogravimetric curve of an embodiment of the flavor carrier and the blank β-cyclodextrin according to the present application;

[0042] Fig. 16 is a schematic view of a cross-sectional structure of an embodiment of the aerosol generating system according to the present application.

[0043] Reference numerals: 10. smoking portion; 20. flavor carrier; 21. carrier; 22. flavoring substance; 221. capsule wall; 222. flavor core; 223. barrier; 30. cooling portion; 40. filter portion; 50. wrapping member; 60. barrier; 100. aerosol generating article; 200. aerosol generating apparatus; 210. auxiliary heating member; 220. heating member; 230. accommodation cavity; 400. aerosol generating system. DETAILED DESCRIPTION

[0044] The present application will be further described below in conjunction with the drawings and embodiments. It is particularly pointed out that the following embodiments are only for illustrating the present application, but not for limiting the scope of the present application. Similarly, the following embodiments are only part of the embodiments of the present application, but not all the embodiments of the present application. All other embodiments obtained by those skilled in the art without making creative efforts fall within the scope of the present application.

[0045] In the description of the present application, the meaning of “a plurality of” is at least two, for example, two, three, etc., unless otherwise explicitly and specifically limited. The terms “first”, “second”, “third” in the embodiments of the present application are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by “first”, “second”, “third” can explicitly or implicitly include at least one of the features. All directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present application are only for explaining the relative position relationship, movement condition, etc. between the components in a certain posture (as shown in the drawings), and if the certain posture changes, the directional indications also change accordingly. The terms “include” and “have” and any variations thereof in the embodiments of the present application are intended to cover the non-exclusive inclusion. For example, the process, method, system, product or device including a series of steps or units is not limited to the listed steps or units, but can optionally include the steps or units not listed, or can optionally include other steps or components inherent to the process, method, product or device.

[0046] Reference to an "embodiment" herein means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are they necessarily mutually exclusive of one another. As will be apparent to those of ordinary skill in the art, embodiments described herein can be combined with other embodiments.

[0047] The present application provides an aerosol generating article. Referring to FIG. 1, the aerosol generating article 100 can include a smoking section 10, a flavor carrying section 20, a cooling section 30, and a filter section 40. The aerosol generating article 100 can have a columnar shape, and a cross section thereof can be circular, elliptical, or polygonal. The aerosol generating article 100 has a length direction. The aerosol generating article 100 has opposite proximal and distal lip ends, wherein the proximal lip end is the end closer to the user's lips during use, and the distal lip end is the other end farther from the user's lips during use. The smoking section 10 is configured to generate aerosol when heated. The smoking section 10 can be of a granular, cut tobacco, block, or reconstituted tobacco type, etc. The flavor carrying section 20 is disposed at the distal lip end together with the smoking section 10. The flavor carrying section 20 can generate aroma, which can be in the form of an aerosol or an aerosol mist. The aroma can be mixed with the aerosol to enrich or improve the taste of the aerosol. The cooling section 30 and the filter section 40 are disposed at the proximal lip end. The cooling section 30 can cool the aerosol flowing therethrough so that the temperature of the filter section 40 does not become too high. The filter section 40 is configured to filter the aerosol to reduce harmful substances in the aerosol.

[0048] Referring to FIG. 1, the flavor carrying section 20 is disposed adjacent to the smoking section 10. For example, the flavor carrying section 20 and the smoking section 10 can be disposed adjacent to each other in the length direction, or the flavor carrying section 20 and the smoking section 10 can be nested in the direction perpendicular to the length direction, or the flavor carrying section 20 can be disposed in the vicinity of the smoking section 10 in other ways. The smoking section 10 needs to be close to a heating element during use, and the smoking section 10 generates aerosol under the heating of the heating element. Since the heating element has a high temperature when heated, the temperature of the vicinity of the smoking section 10 is high. In addition, the temperature of the vicinity of the smoking section 10 decreases less after the aerosol generated by the smoking section 10 passes through the vicinity, and thus the temperature of the vicinity of the smoking section 10 can also be high. By disposing the flavor carrying section 20 adjacent to the smoking section 10, flavor substances can volatilize and emit aroma under the action of heat energy in the vicinity of the smoking section 10. Compared with aroma emission at room temperature, the aroma release rate of the flavor substances 22 can be controlled, and the aroma release is more stable.

[0049] Referring to FIG. 2, the flavor carrier 20 includes flavoring substances 22 and a carrier 21. The flavoring substances 22 are in a powder form. The flavoring substances 22 can generate aroma under the action of thermal energy. The aroma can be mixed with the aerosol to improve the taste of the aerosol. For example, the flavor carrier 20 can generate aroma under the action of thermal energy of the aerosol flowing through the flavor carrier 20. For another example, the flavor carrier 20 can generate aroma under the action of thermal energy of the aerosol and external auxiliary heating. The aerosol generating article 100 is inserted into a receiving cavity of an aerosol generating device in use. The aerosol generating device includes a heating element arranged upstream of the receiving cavity. The heating element heats the airflow entering the receiving cavity. The airflow can heat the smoking portion 10 and the flavor carrier 20 when flowing through the smoking portion 10 and the flavor carrier 20. Thus, the flavor carrier 20 can generate aroma under the action of thermal energy of the aerosol flowing through the flavor carrier 20. Alternatively, the aerosol generating device further includes an auxiliary heating element arranged on the periphery of the flavor carrier 20 and the smoking portion 10. The auxiliary heating element heats the flavor carrier 20 and the smoking portion 10 from the periphery of the flavor carrier 20 and the smoking portion 10. Thus, the flavor carrier 20 can generate aroma under the action of thermal energy of the aerosol and external auxiliary heating. The carrier 21 is used to carry the flavoring substances 22. The flavoring substances 22 are attached to the carrier 21. The flavoring substances 22 can be adsorbed on the carrier 21 or dispersed and fixed on the carrier 21, so that the flavoring substances 22 are not easy to fall off during production or use.

[0050] The aerosol generating article 100 provided in the present application has the flavoring substances 22 of the flavor carrier 20 in a powder form. The flavoring substances 22 are set to be in a solid state. Thus, the flavoring substances 22 have good stability and are not easy to volatilize at room temperature. In addition, the flavoring substances 22 volatilize slower than essential oil during heating, thereby delaying the attenuation of the taste of the aerosol and improving the taste consistency of the aerosol. In addition, the flavor carrier 20 is arranged adjacent to the smoking portion 10. The adjacent area of the smoking portion 10 has sufficient temperature to volatilize the flavoring substances. Thus, the flavoring substances 22 can continuously and stably release aroma under the action of thermal energy, thereby further improving the taste consistency of the aerosol.

[0051] In addition, the packaging of the aerosol generating article is mostly paper. Compared with essential oil, the flavoring substances 22 are set to be in a powder form. Thus, the flavoring substances 22 are not easy to soak the packaging. The user can not get dirty hands during use, thereby improving the user experience.

[0052] The smoking portion 10 and the flavor carrying portion 20 can be assembled into the device, or can be connected together by adhesion or clamping to facilitate use. In an embodiment, as shown in FIG. 1, the aerosol generating article 100 further includes a wrapping member 50, which is in a hollow cylindrical shape and wraps the smoking portion 10 and the flavor carrying portion 20. Wrapping the smoking portion 10 and the flavor carrying portion 20 in the wrapping member 50 allows the smoking portion 10 and the flavor carrying portion 20 to form a whole, which can facilitate use. When the aerosol generating article 100 includes the cooling portion 30 and the filter portion 40, the wrapping member 50 can further wrap the cooling portion 30 and the filter portion 40.

[0053] Some configurations of the carrier 21 are described below. In an embodiment, as shown in FIG. 1, the carrier 21 is a porous medium, and the flavoring substance 22 is dispersed and adsorbed in the pores of the carrier 21. The carrier 21 can be generally in a cylindrical shape or a hollow cylindrical shape in space to facilitate wrapping of the flavor carrying portion 20 by the wrapping member 50. The flavoring substance 22 can be uniformly dispersed in the pores of the carrier 21 to allow the flavor carrying portion 20 to continuously and stably release aroma in all directions. The carrier 21 is configured as a porous medium, which has a strong adsorption effect on the powder-like flavoring substance 22, and can increase the adsorption force between the flavoring substance 22 and the carrier 21 to prevent the flavoring substance 22 from falling off during production or use.

[0054] In an embodiment, the carrier 21 includes one of cotton, fiber, activated carbon, silicon dioxide, or a polymer resin. The porous medium of the above-mentioned materials can have a strong adsorption force on the flavoring substance 22 to prevent the flavoring substance 22 from falling off during production or use.

[0055] In an embodiment, as shown in FIGS. 4-7, the carrier 21 is a gel, and the carrier 21 is in a film shape or a sheet shape, and the flavoring substance 22 is dispersed and fixed on the gel. The gel has a certain viscosity, and can adhere and fix the flavoring substance 22. The flavoring substance 22 can be adhered and fixed on the surface of the gel, or can be embedded in the interior of the gel, to prevent the flavoring substance 22 from falling off during production or use. In addition, the gel in a film shape or a sheet shape has a certain flexibility, and allows the flavor carrying portion 20 to be easily processed into a predetermined shape in space, such as a cylindrical shape or a hollow cylindrical shape.

[0056] In an embodiment, the gel is wound into a rod shape, as shown in FIGS. 4-5, or the gel is folded and gathered into a rod shape, as shown in FIGS. 6-7. Processing the gel into a rod shape can facilitate wrapping of the flavor carrying portion 20 by the wrapping member 50, thereby enhancing the adaptability of the flavor carrying portion 20.

[0057] In an embodiment, as shown in FIG. 5 and FIG. 7, the carrier 20 has a gap therein, and the gap extends through the carrier 20 along the direction of the airflow in use. The gap in the carrier 20 is configured to allow the aerosol to flow in the gap, thereby increasing the contact area between the aerosol and the carrier 21 to facilitate the carrying of the fragrance.

[0058] The following describes some configurations of the flavoring substance 22. The flavoring substance 22 can be a powder flavoring made by grinding a mixture of multiple flavorings, for example. Alternatively, the flavoring substance 22 can be a powder flavoring made by absorbing a single flavoring into a powder of a single substance, for example. The flavoring substance 22 in the above forms is in a solid state, which can improve the stability of the flavoring substance 22 and prevent the flavoring substance 22 from being volatilized at room temperature, thereby improving the consistency of the taste of the aerosol.

[0059] In an embodiment, the flavoring substance 22 is a microcapsule flavoring. The microcapsule flavoring is configured to form a nested structure, and the flavoring substance 22 is less likely to be volatilized at room temperature, thereby improving the stability of the flavoring substance 22.

[0060] As shown in FIG. 3, in an embodiment, the microcapsule flavoring includes a capsule wall 221 and a flavoring core 222 embedded in the capsule wall 221. The capsule wall 221 is made of a heat-sensitive material, and the capsule wall 221 can be decomposed under the action of heat energy to allow the flavoring core 222 to generate fragrance. The embedding of the flavoring core 222 in the capsule wall 221 can prevent the flavoring core 222 from being volatilized, thereby improving the stability of the flavoring substance 22.

[0061] In an embodiment, the capsule wall 221 has micropores, and the flavoring core 222 embedded in the capsule wall 221 can be in a solid state, a liquid state, or a solid-liquid mixed state. The fragrance generated by the flavoring core 222 under the action of heat energy can be released from the micropores to the outside of the capsule wall 221.

[0062] In an embodiment, the particle size of the microcapsule flavoring is 1-1000 μm. If the particle size of the microcapsule flavoring is less than 1 μm, the particle size of the microcapsule flavoring is too small, the amount of the flavoring core 222 embedded in the capsule wall 221 is too small, and the fragrance generated by the flavoring core 222 after the decomposition of the capsule wall 221 is too small, which cannot improve the taste of the aerosol. If the particle size of the microcapsule flavoring is greater than 1000 μm, the particle size of the microcapsule flavoring is too large, which can reduce the interaction between the microcapsule flavoring and the carrier 21, and cause the microcapsule flavoring to be easily detached during the production or use. The particle size of the microcapsule flavoring can be 1 μm, 100 μm, 200 μm, 300 μm, 400 μm, 500 μm, 600 μm, 700 μm, 800 μm, 900 μm, or 1000 μm, which is not limited herein.

[0063] In an embodiment, the capsule wall 221 comprises one of a chitosan capsule wall, a pectin capsule wall, a gelatin capsule wall, or a cyclodextrin capsule wall. The capsule wall 221 can be any of the above-mentioned capsule walls, which can form a good embedding of the flavor core 222, so that the flavoring substance 22 has good stability. The flavor core 222 can be in a liquid state, a solid state, or a solid-liquid mixed state. For example, the flavor core 222 can be a water-soluble essence flavor, which can be one or more of a litchi extract, a blueberry extract, a green tea extract, a dried tangerine peel extract, and a phyllanthus emblica extract. The flavor core 222 can generate an aroma after the capsule wall 221 is decomposed and mixed into the aerosol, thereby improving the taste of the aerosol.

[0064] As mentioned above, the flavor-carrying portion 20 is arranged adjacent to the smoking portion 10, and the flavor-carrying portion 20 is located in the adjacent area of the smoking portion 10, so that the flavor-carrying portion 20 is close to the smoking portion 10. In an embodiment, the flavor-carrying portion 20 is located on the lower side or the upper side of the smoking portion 10. The flavor-carrying portion 20 is arranged on the lower side or the upper side of the smoking portion 10, so that the flavor-carrying portion 20 is arranged adjacent to the smoking portion 10 in the length direction, and the aroma can be continuously and stably released by the high temperature in the adjacent area of the smoking portion 10. In addition, the flavor-carrying portion 20 is arranged at one end of the smoking portion 10, so that the flavor-carrying portion 20 has the same extension direction as the smoking portion 10, and the flavor-carrying portion 20 and the smoking portion 10 form a rod-shaped structure, which can be conveniently wrapped by the wrapper 50.

[0065] In an embodiment, the aerosol-generating article 100 further comprises a blocking member 60, which is sealed at one end of the flavor-carrying portion 20 away from the proximal lip end. The blocking member 60 can be a sealing paper, which can limit the microcapsule essence in the flavor-carrying portion 20 when the microcapsule essence falls off the flavor-carrying portion 20, thereby preventing the flavor-carrying portion 20 from falling off. Understandably, the blocking member 60 has air permeability, and the blocking member 60 allows the aerosol to pass through. When the carrier 21 is a gel, the flavoring substance 22 is dispersed and fixed on the gel, and the blocking member 60 can be a mesh structure or a porous structure, which can support and block the carrier 21 from falling off.

[0066] The present application provides a preparation method of an aerosol-generating article. Referring to FIG. 8, the preparation method 300 can comprise steps S310-S320:

[0067] S310, attach the flavoring substance 22 to the carrier 21 to form the flavoring part 20, wherein the flavoring substance 22 is in a powder form. The flavoring substance 22 is attached to the carrier 21 so that the flavoring substance 22 is not easy to fall off during production or use. The flavoring substance 22 can generate aroma under the action of thermal energy, and the aroma can be mixed with the aerosol to improve the taste of the aerosol. For example, the flavoring part 20 can generate aroma under the action of thermal energy of the aerosol flowing through the flavoring part 20; for another example, the flavoring part 20 can generate aroma under the action of heating of an external auxiliary heating member. The flavoring substance 22 of the flavoring part 20 is in a powder form, and the flavoring substance 22 is set to be in a solid state, so that the flavoring substance 22 has good stability and is not easy to volatilize at room temperature, and compared with an essential oil type flavoring, the flavoring substance 22 volatilizes slowly during heating, thereby delaying the attenuation of the taste of the aerosol and improving the taste consistency of the aerosol.

[0068] S320, provide the smoking part 10, and place the flavoring part 20 in the vicinity of the smoking part 10 to process the aerosol generating article 100. The flavoring part 20 is arranged adjacent to the smoking part 10, and since the vicinity of the smoking part 10 has a sufficient temperature to volatilize the flavoring substance, the flavoring substance 22 can continuously and stably release aroma under the action of thermal energy, thereby further improving the taste consistency of the aerosol.

[0069] Some preparation methods of the flavoring part 20 are introduced below. In an embodiment, attaching the flavoring substance 22 to the carrier 21 to form the flavoring part 20 includes using a porous medium as the carrier 21, and spraying the flavoring substance 22 to the carrier 21 to disperse and adsorb the flavoring substance 22 in the pores of the carrier 21. Spraying the flavoring substance 22 to the carrier 21 can make the flavoring substance 22 more uniformly dispersed in the pores of the carrier 21.

[0070] Please refer to FIG. 9, in an embodiment, attaching the flavoring substance 22 to the carrier 21 to form the flavoring part 20 includes steps S311-S312:

[0071] S311, use a gel as the carrier 21, add the flavoring substance 22 to the gel, and stir to disperse the flavoring substance 22 in the gel. By stirring, the flavoring substance 22 can be more uniformly dispersed in the gel, and the gel can adhere and fix the flavoring substance 22, thereby making the flavoring substance 22 not easy to fall off during production or use.

[0072] S312, form the gel containing the flavoring substance 22 into a film or a sheet, and solidify and shape. The gel can be applied into a film or a sheet, or the gel can be formed into a film or a sheet by using a mold. Processing the carrier 21 into a film or a sheet can facilitate subsequent spatial processing of the flavoring part 20 into a preset shape, for example, into a columnar shape or a hollow cylindrical shape.

[0073] Referring to FIGS. 10-12, in an embodiment, the step of attaching the flavoring substance 22 to the carrier 21 to form the flavoring part 20 further comprises a step S313 of:

[0074] S313, the solidified and shaped gel is wound into a rod shape, or the solidified and shaped gel is folded and gathered into a rod shape. The gel is processed into a rod shape, which facilitates the wrapping of the wrapping part 50 around the flavoring part 20, thereby enhancing the adaptability of the flavoring part 20.

[0075] In an embodiment, a gap is left in the flavoring part 20, and the gap extends through the flavoring part 20 along the direction of the airflow in use. When the gel is processed into a rod shape, the gap is left in the flavoring part 20, so that the aerosol can flow in the gap, thereby increasing the contact area between the aerosol and the carrier 21, to facilitate the carrying of the aroma and the output.

[0076] Some preparation methods of the flavoring substance 22 are described below. The flavoring substance 22 can be a powder flavoring substance mixed by various spices, for example, the flavoring substance 22 is prepared by grinding various spices; or the flavoring substance 22 is a powder flavoring substance prepared by absorbing a single flavoring substance, for example, the flavoring substance 22 is prepared by adsorbing a single flavoring substance on a solid adsorbent. The flavoring substance 22 prepared by the above methods is in a solid state, so that the flavoring substance 22 has good stability and is not easy to volatilize at room temperature, which can improve the consistency of the taste of the aerosol.

[0077] In an embodiment, the flavoring substance 22 is a microcapsule flavoring substance. The flavoring substance 22 is arranged to be a microcapsule flavoring substance, so that the flavoring substance 22 forms a wrapped nested structure, and the flavoring substance 22 is not easy to volatilize at room temperature, which can improve the stability of the flavoring substance 22.

[0078] The preparation method of the microcapsule flavoring substance can include a physical method, a chemical method, or a physical-chemical method. The physical method is to prepare the microcapsule by using physical and mechanical principles, which can be a spray drying method, an air suspension method, or a complexation method, etc.; the chemical method mainly uses monomer small molecules to generate high molecular or film materials by polymerization reaction and embeds the core material, which can be an interfacial polymerization method or an in-situ polymerization method; the physical-chemical method is to change the conditions (such as temperature, pH, etc.) to make the dissolved state of the film-forming material precipitate out of the solution and embed the core material to form the microcapsule flavoring substance, which can be a coacervation method, an oil phase separation method, a dry bath method, or a melting dispersion condensation method, etc.

[0079] Referring to FIG. 13, in an embodiment, the microcapsule flavoring substance is prepared by using the complexation method in the physical method, and the preparation method of the microcapsule flavoring substance comprises steps S3111-S3113:

[0080] S3111, the capsule wall raw material and water are added to a container and stirred and heated. In an embodiment, the capsule wall raw material is at least one of chitosan, pectin, gelatin, or cyclodextrin.

[0081] S3112, adding flavor core material into the container, and stirring the mixture for a predetermined time period to allow the capsule wall material to fully contact and embed the flavor core material. In an embodiment, the flavor core material is in a liquid, solid or solid-liquid mixed state. By embedding the flavor core material in the capsule wall, the microcapsule fragrance has a slow-release property, which can prolong the release time of the fragrance.

[0082] S3113, obtaining a precipitate by refrigerating and standing the mixture, and then filtering, washing and drying the precipitate to obtain a flavor substance in the form of microcapsules.

[0083] A brief description of the preparation method of microcapsule fragrance is given, using leaf alcohol as the core material and β-cyclodextrin as the wall material. The container is cleaned, the temperature of the water bath is set to 38°C, and after warming, the container is placed in the water bath for heating. 10 parts of β-cyclodextrin are added to the container, together with 100 parts of deionized water, and the stirring instrument is installed, with the speed set to 350 r / min. The molecular weight of β-cyclodextrin is 1134.984, and the molecular weight of leaf alcohol is 100.16. The molar ratio of leaf alcohol to β-cyclodextrin is set to 2:1, and the corresponding proportion of leaf alcohol is weighed and added to the stirred β-cyclodextrin. The container is placed in a constant-temperature water bath pre-set to 38°C, the speed of the mechanical stirrer is adjusted to 580 r / min, and the mixture is stirred for 3 h to allow the β-cyclodextrin to fully contact with the leaf alcohol. After the β-cyclodextrin has completely embedded the leaf alcohol, the container is placed in a refrigerator for cold storage for 24 h to allow the mixture to separate into layers, and a white solid inclusion compound is obtained from the lower layer. The inclusion compound is filtered using a filtration instrument, washed with 90% ethanol for 3 times, and then dried in a freeze dryer to obtain a powder-like microcapsule fragrance.

[0084] The leaf alcohol, β-cyclodextrin and microcapsule fragrance are subjected to infrared testing, and the test results are shown in FIG. 14. As can be seen from the figure, in the infrared spectrum of the leaf alcohol, there are carbon-hydrogen vibration peaks in the fingerprint region of 500-1000 cm-1, hydroxyl stretching vibration peaks at about 3000 cm-1, and carbon-carbon double bond stretching vibration peaks at 1500 cm-1. By comparing the infrared spectrum curves of β-cyclodextrin, microcapsule fragrance and leaf alcohol, it can be found that part of the vibration peaks of the leaf alcohol disappear after being embedded in the β-cyclodextrin, and the vibration intensity of other vibration peaks also changes, and the vibration peaks of the microcapsule fragrance and the β-cyclodextrin are basically the same. It can be seen that the β-cyclodextrin has successfully embedded the leaf alcohol.

[0085] On the basis of the microcapsule perfume prepared by using leaf alcohol and β-cyclodextrin, a fragrance carrying part is further prepared. The fragrance carrying part and blank β-cyclodextrin (i.e. β-cyclodextrin raw material without embedding leaf alcohol) are subjected to thermogravimetric analysis, and the thermogravimetric curve is shown in FIG. 15. As can be seen from the figure, the weight of the blank β-cyclodextrin starts to rapidly decrease at 300°C, showing that the β-cyclodextrin decomposes in large quantities at 300°C. The thermogravimetric curve of the fragrance carrying part is gently decreased between about 100°C-280°C, while the thermogravimetric curve of the blank β-cyclodextrin is parallel to the temperature axis, showing that the leaf alcohol in the fragrance carrying part is slowly released between 100°C-280°C, and the microcapsule perfume in the fragrance carrying part has good stability. As can be further seen from the figure, after 280°C, the fragrance carrying part rapidly decreases due to the decomposition and release of the wall material, so that the fragrance carrying part generates persistent and stable aroma under the action of heat energy, and the taste consistency of the aerosol is improved.

[0086] In an embodiment, the aerosol generating article 100 is processed by placing the fragrance carrying part 20 in the vicinity of the smoking part 10, comprising:

[0087] A blocking piece 60 is provided, and the blocking piece 60 is blocked at one end of the fragrance carrying part 20. The blocking piece 60 can be a sealing paper, which can limit the flavoring substance 22 in the fragrance carrying part 20 when the flavoring substance 22 falls off, so as to prevent the fragrance carrying part 20 from falling off. Understandably, the blocking piece 60 can have air permeability, and the blocking piece 60 allows the aerosol to pass through. When the carrier 21 is a gel, the flavoring substance 22 is dispersed and fixed on the gel, and the blocking piece 60 can be a mesh structure or a porous structure, which can support and block the carrier 21 from falling off.

[0088] In an embodiment, the aerosol generating article 100 is processed by placing the fragrance carrying part 20 in the vicinity of the smoking part 10, comprising:

[0089] A wrapping piece 50 is provided, the fragrance carrying part 20 is placed close to the smoking part 10, and the wrapping piece 50 is wrapped around the outer periphery of the fragrance carrying part 20 and the smoking part 10. The fragrance carrying part 20 and the smoking part 10 are wrapped in the wrapping piece 50, so that the fragrance carrying part 20 and the smoking part 10 form an integral whole, which can be conveniently used.

[0090] In an embodiment, the aerosol generating article 100 is processed by placing the fragrance carrying part 20 in the vicinity of the smoking part 10, further comprising:

[0091] The aroma-carrying portion 20 is arranged on the downstream side of the smoking portion 10, or the aroma-carrying portion 20 is arranged on the upstream side of the smoking portion 10. The aroma-carrying portion 20 is arranged on the downstream side or the upstream side of the smoking portion 10, so that the aroma-carrying portion 20 is arranged adjacent to the smoking portion 10 in the length direction, and the aroma can be continuously and stably released by using the high temperature of the adjacent area of the smoking portion 10; in addition, the aroma-carrying portion 20 is arranged at one end of the smoking portion 10, so that the aroma-carrying portion 20 has the same extension direction as the smoking portion 10, and the aroma-carrying portion 20 and the smoking portion 10 form a rod-shaped structure, which can facilitate the wrapping member 50 to wrap the aroma-carrying portion 20 and the smoking portion 10.

[0092] In an embodiment, the aerosol generating article 100 further comprises:

[0093] The filtering portion 40 is arranged on the downstream side of the smoking portion 10 and the aroma-carrying portion 20. The filtering portion 40 is arranged on the downstream side of the smoking portion 10 and the aroma-carrying portion 20, and when the aerosol flows through the filtering portion 40, the filtering portion 40 can filter harmful substances in the aerosol, thereby reducing harmful substances in the aerosol.

[0094] In an embodiment, the aerosol generating article 100 further comprises the cooling portion 30 and the filtering portion 40, and the smoking portion 10, the aroma-carrying portion 20, the cooling portion 30 and the filtering portion 40 are arranged in the hollow wrapping member 50, thereby forming the aerosol generating article 100.

[0095] The present application provides an aerosol generating system. Referring to FIG. 16, the aerosol generating system 400 includes an aerosol generating device 200 and an aerosol generating article 100 as described above. The aerosol generating device 200 is provided with a receiving cavity 230 for inserting the aerosol generating article 100. The aerosol generating device 200 includes a heating element 220 and an auxiliary heating element 210. The heating element 220 and the auxiliary heating element 210 can be electrically resistive wires that generate heat when connected to a power source. The heating element 220 is disposed upstream of the receiving cavity 230 and is configured to heat the airflow entering the receiving cavity 230. When a user inhales, the heated airflow flows to the tobacco heating portion 10 and the flavor carrying portion 20 and heats the tobacco heating portion 10 and the flavor carrying portion 20 as it flows through the tobacco heating portion 10 and the flavor carrying portion 20. The auxiliary heating element 210 is disposed on the periphery of the tobacco heating portion 10 and the flavor carrying portion 20 and is configured to heat the tobacco heating portion 10 and the flavor carrying portion 20 from the periphery. The heating element 220 is configured to generate a hot airflow to heat the tobacco heating portion 10 and the flavor carrying portion 20, and the auxiliary heating element 210 is configured to heat the tobacco heating portion 10 and the flavor carrying portion 20 from the periphery, which can increase the heating temperature of the tobacco heating portion 10 and the flavor carrying portion 20, ensure that the tobacco heating portion 10 stably generates aerosol, and allow the flavor carrying portion 20 to continuously release flavor, thereby improving the consistency of the taste of the aerosol. The detailed structure of the aerosol generating device 200 is not described again.

Claims

1. A method of making an aerosol-generating article, characterized in that, The method comprises: attaching flavoring substances to a carrier to form a flavoring carrier, wherein the flavoring substances are in powder form; providing a smoking portion, and placing the flavoring carrier in a vicinity of the smoking portion to process the aerosol generating article.

2. The production method according to claim 1, characterized by, The method of attaching flavoring substances to a carrier to form a flavoring carrier comprises: using a porous medium as the carrier, and spraying the flavoring substances onto the carrier to disperse and adsorb the flavoring substances in the pores of the carrier.

3. The production method according to claim 1, characterized by, The method of attaching flavoring substances to a carrier to form a flavoring carrier comprises: using a gel as the carrier, adding the flavoring substances to the gel, and stirring to disperse the flavoring substances in the gel; forming the gel containing the flavoring substances into a film or a sheet, and curing and shaping the gel.

4. The production method according to claim 3, characterized by, The method of attaching flavoring substances to a carrier to form a flavoring carrier further comprises: winding the cured and shaped gel into a rod, or folding and gathering the cured and shaped gel into a rod.

5. The preparation method according to claim 4, characterized in that, The flavoring carrier has a gap, and the gap extends through the flavoring carrier along the direction of the airflow in use.

6. The method of claim 1, wherein, The method of preparing the flavoring substances comprises: adding a capsule wall raw material and water into a container, and stirring and heating; adding a flavoring core material into the container, and stirring the mixture for a preset time to allow the capsule wall raw material to fully contact and embed the flavoring core material; refrigerating and standing the mixture to obtain a precipitate, and filtering, washing, and drying the precipitate to obtain the flavoring substances in the form of microcapsules; wherein the capsule wall raw material comprises at least one of chitosan, pectin, gelatin, or cyclodextrin, and the flavoring core material is in a liquid state, a solid state, or a solid-liquid mixed state.

7. The method of any one of claims 1-6, wherein, The method of placing the flavoring carrier in a vicinity of the smoking portion to process the aerosol generating article comprises: providing a wrapping member, placing the flavoring carrier on a side close to the smoking portion, and wrapping the wrapping member around the outer periphery of the flavoring carrier and the smoking portion.

8. The preparation method according to claim 7, characterized in that, The method of attaching flavoring substances to a carrier to form a flavoring carrier further comprises: providing a blocking member, and blocking the blocking member at one end of the carrier; and / or, the method of placing the flavoring carrier in a vicinity of the smoking portion to process the aerosol generating article further comprises: arranging the flavoring carrier on a downstream side of the smoking portion, or arranging the flavoring carrier on an upstream side of the smoking portion; and / or, providing a filter portion, and arranging the filter portion downstream of the smoking portion and the flavoring carrier.

9. An aerosol-generating article, characterised in that, The aerosol generating article comprises a smoking portion, a flavoring carrier, and a wrapping member, wherein the wrapping member wraps the smoking portion and the flavoring carrier, and the flavoring carrier is arranged adjacent to the smoking portion. The flavoring carrier comprises flavoring substances and a carrier, wherein the flavoring substances are in powder form, and the flavoring substances are attached to the carrier.

10. An aerosol-generating article according to claim 9, wherein, The carrier is a porous medium, and the flavoring substances are dispersed and adsorbed in the pores of the carrier.

11. An aerosol-generating article according to claim 9, wherein, The carrier comprises one of cotton, fiber, activated carbon, silicon dioxide, or a polymer resin.

12. An aerosol-generating article according to claim 9, wherein, The carrier is a gel, the carrier is in the form of a film or a sheet, and the flavoring substances are dispersed and fixed on the gel.

13. An aerosol-generating article according to claim 12, wherein, The gel is wound into a rod, or the gel is folded and gathered into a rod; and / or, The carrier has a gap, which extends through the carrier along the direction of the airflow in use.

14. An aerosol-generating article according to claim 9, wherein, The flavoring substance is a microcapsule flavorant.

15. An aerosol-generating article according to claim 14, wherein, The microcapsule flavorant comprises a capsule wall and a flavor core embedded in the capsule wall. The microcapsule flavorant has a particle size of 1-1000 μm.

16. An aerosol-generating article according to claim 15, wherein, The capsule wall comprises one of a chitosan capsule wall, a pectin capsule wall, a gelatin capsule wall or a cyclodextrin capsule wall, and the flavor core is in a liquid, solid or solid-liquid mixed state.

17. An aerosol-generating article according to any one of claims 9 to 16, wherein, The aerosol generating article comprises a filter wrapped by the wrapper; The aerosol generating article has opposite proximal and distal lips, the carrier and the smoking portion are arranged at the distal lip, the carrier is arranged on the lower side or the upper side of the smoking portion, and the filter is arranged at the proximal lip; and / or The aerosol generating article further comprises a blocking member, which is arranged at one end of the carrier away from the proximal lip.

18. An aerosol-generating system comprising, The aerosol generating article comprises an aerosol generating device and an aerosol generating article according to any one of claims 9-17. The aerosol generating device is provided with a receiving cavity for inserting the aerosol generating article. The aerosol generating device comprises a heating member arranged upstream of the receiving cavity and configured to heat the airflow entering the receiving cavity, and a supplementary heating member arranged on the peripheral side of the carrier and the smoking portion and configured to heat the carrier and the smoking portion from the peripheral side of the carrier and the smoking portion.

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