Aerosol generating medium particle, preparation method thereof and aerosol generating product

Abstract

The embodiment of the invention provides an aerosol generating medium particle, a preparation method thereof and an aerosol generating product. The aerosol-generating medium particles include a substrate, a fuming medium and / or a fragrance enhancing substrate, and a hydrophobic structure. The base material is provided with a plurality of containing holes, at least part of the containing holes form openings in the outer surface of the base material, the fuming media and / or the aroma enhancement media are / is arranged in the containing holes, and the hydrophobic structure is arranged on the outer side of the base material and at least partially covers the openings of the containing holes. According to the aerosol generating medium particle, the preparation method thereof and the aerosol generating product, the loading capacity of the fuming medium and / or the aroma enhancing medium can be improved, the probability that the fuming medium is affected with damp and mildews during storage is reduced, and / or the aroma enhancing medium is limited to volatilize to the outside during storage, and gradual release of smoke and / or aroma can be achieved; and good suction experience is achieved.

Description

Aerosol generating medium particles and their preparation methods, aerosol generating products Technical Field

[0001] The embodiments of this application relate to the field of aerosol generation technology, and in particular to an aerosol generation medium particle, a method for preparing the same, and an aerosol generation product. Background Technology

[0002] Aerosol generating matrix can form aerosols by ignition or by heating without combustion. In the heated but non-combustible aerosol generating matrix, the aerosol generating matrix is ​​heated by an external heat source to a level sufficient to release aerosols. The aerosol generating matrix does not burn; instead, it is loaded with a smoke-generating agent, and aerosols are released by heating the aerosol generating matrix during use.

[0003] There may be a shelf-life period between the aerosol generating matrix leaving the factory and its actual use. During the storage period, the aerosol generating matrix provided in the relevant technology may experience problems such as the smoke-generating medium becoming damp and moldy and / or the aroma-enhancing medium volatilizing, resulting in a poor suction experience when the aerosol generating matrix is ​​actually used. Summary of the Invention

[0004] In view of this, the embodiments of this application aim to provide aerosol generating medium particles, a method for preparing the same, and aerosol generating articles.

[0005] The first aspect of this application provides an aerosol generating medium particle, the aerosol generating medium particle comprising: a substrate having a plurality of receiving holes, at least a portion of the receiving holes forming openings on the outer surface of the substrate; a smoke-generating medium and / or an aroma-enhancing medium disposed within the receiving holes; and a hydrophobic structure disposed on the outer side of the substrate and at least partially covering the openings of the receiving holes.

[0006] In some embodiments, the maximum diameter of the substrate is 1-5 mm; and / or the substrate is formed by cutting a porous material.

[0007] In some embodiments, the porous material includes at least one of the following: rush pith, bamboo fungus, freeze-dried plants, and plants that have undergone foaming treatment.

[0008] In some embodiments, the hydrophobic structure comprises: a hydrophobic powder adhered to the outer surface of the substrate; or, the hydrophobic structure comprises: a hydrophobic coating applied to the outer surface of the substrate.

[0009] In some embodiments, the hydrophobic powder is formed by pulverizing hydrophobic herbal materials; and / or, the hydrophobic powder adsorbs a smoke-generating medium and / or a fragrance-enhancing medium; and / or the hydrophobic coating includes hydrophobic plant powder and broad-leaved plant fibers; and / or the thickness of the hydrophobic coating is 0.3-1.2 mm; and / or, the hydrophobic coating includes a smoke-generating medium and / or a fragrance-enhancing medium.

[0010] A second aspect of this application provides a method for preparing aerosol generating medium particles. The method includes: preparing a substrate having a plurality of accommodating pores, the accommodating pores forming openings on the outer surface of the substrate; introducing a smoke-generating medium and / or an aroma-enhancing medium into the accommodating pores to obtain an adsorbent; and disposing a hydrophobic structure on the outside of the adsorbent, such that the hydrophobic structure at least partially covers the openings of the accommodating pores, thereby obtaining aerosol generating medium particles.

[0011] In some embodiments, the preparation of the substrate includes cutting a porous material to form the substrate, wherein the porous material includes at least one of the following: rush pith, bamboo fungus, freeze-dried plants, and plants that have undergone foaming treatment; and / or the preparation of the substrate further includes: deodorizing the porous material; and / or the preparation of the substrate further includes: sieving the cut porous material; and / or the preparation of the substrate further includes: foaming the porous material.

[0012] In some embodiments, the step of introducing the smoke-generating medium and / or the aroma-enhancing medium into the receiving hole to form an adsorbent includes: mixing the substrate with the smoke-generating medium and / or the aroma-enhancing medium, and stirring under vacuum or pressure conditions to introduce the smoke-generating medium and / or the aroma-enhancing medium into the receiving hole; and / or the step of introducing the smoke-generating medium and / or the aroma-enhancing medium into the receiving hole to form an adsorbent includes: spraying the smoke-generating medium and / or the aroma-enhancing medium onto the surface of the substrate in the form of a spray.

[0013] In some embodiments, mixing the substrate with the smoke-generating medium and / or the flavoring medium and stirring under vacuum or pressure conditions includes: first mixing the substrate with the smoke-generating medium and stirring under vacuum or pressure conditions, and then mixing the flavoring medium with the substrate and stirring under vacuum or pressure conditions; and / or stirring under vacuum conditions includes: stirring at a vacuum degree of less than or equal to 0.1 MPa, and breaking the vacuum once every set time interval during stirring.

[0014] In some embodiments, the smoke-generating medium includes glycerin, the flavoring medium includes flavoring, and nicotine preparations and / or cooling agents, and the mixing of the substrate with the smoke-generating medium and / or flavoring medium includes: mixing 10-15 parts by weight of the substrate with 40-60 parts of glycerin, 3-5 parts of flavoring, and 1-2 parts of nicotine preparations and / or cooling agents.

[0015] In some embodiments, the step of setting the hydrophobic structure on the outside of the adsorbent includes: preparing a hydrophobic powder, mixing the hydrophobic powder with the adsorbent, and causing the hydrophobic powder to adhere to the outer surface of the adsorbent to form the hydrophobic structure.

[0016] In some embodiments, before mixing the hydrophobic powder with the adsorbent, the method further includes: causing the hydrophobic powder to adsorb a smoke-generating medium and / or a fragrance-enhancing medium.

[0017] A third aspect of this application provides aerosol generating medium particles, which are prepared by the aerosol generating medium particle preparation method described in the second aspect of this application.

[0018] A fourth aspect of the present application provides an aerosol generating article, the aerosol generating article comprising the aerosol generating medium particles described in the first or third aspect of the present application.

[0019] In some embodiments, the aerosol generating article includes an aerosol generating medium segment, the aerosol generating medium segment including a sheet-like matrix, the sheet-like matrix having a granular layer, and the aerosol generating medium particles disposed on the granular layer.

[0020] In some embodiments, the aerosol generating medium segment is configured as a wound structure formed by winding the sheet-like matrix.

[0021] The aerosol generating medium particles and their preparation method, as well as the aerosol generating products of the present application embodiments, can increase the loading of the smoke-generating medium and / or the aroma-enhancing medium, reduce the probability of the smoke-generating medium becoming damp and moldy during storage and / or limit the volatilization of the aroma-enhancing medium to the outside world during storage, and can achieve the gradual release of smoke and / or aroma, resulting in a better smoking experience. Attached Figure Description

[0022] Figure 1 is a schematic cross-sectional view of the aerosol generating medium particles according to an embodiment of this application;

[0023] Figure 2 is a cross-sectional structural diagram of aerosol generating medium particles according to another embodiment of this application;

[0024] Figure 3 is a flowchart of the method for preparing aerosol generating medium particles according to an embodiment of this application;

[0025] Figure 4 is a schematic diagram of the structure of the sheet-like matrix according to an embodiment of this application;

[0026] Figure 5 is a schematic diagram of the aerosol generating medium section in an embodiment of this application;

[0027] Figure 6 is a schematic diagram of the structure of the aerosol-generated article according to an embodiment of this application.

[0028] Explanation of reference numerals in the attached figures

[0029] 10. Aerosol generating medium particles; 1. Substrate; 11. Receiving hole; 11a. Opening; 2. Smoke generating medium; 3. Flavor enhancing medium; 4. Hydrophobic structure; 41. Hydrophobic powder; 42. Hydrophobic coating; 20. Sheet matrix; 21. Particle layer; 22. Base layer; 100. Aerosol generating medium section; 200. Filtration section; 300. Cooling section; 400. Pre-plug section; 500. Sealing component; 600. Outer coating layer; 1000. Aerosol generating product. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0031] The specific technical features described in the specific embodiments can be combined in any suitable manner without contradiction. For example, different combinations of specific technical features can form different embodiments and technical solutions. To avoid unnecessary repetition, the various possible combinations of the specific technical features in this invention will not be described separately.

[0032] In the following description, the terms "first," "second," etc., are used merely to distinguish different objects and do not indicate that the objects have the sameness or relationship. It should be understood that the directional descriptions "above," "below," "outside," and "inside" refer to the orientation under normal use conditions, while "left" and "right" refer to the left and right directions shown in the corresponding diagrams, which may or may not be the left and right directions under normal use conditions.

[0033] It should be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. "A plurality of" means two or more.

[0034] Unless otherwise specified, the numerical ranges in this application include the endpoint values.

[0035] The embodiments of this application first provide an aerosol generating medium particle. Referring to Figures 1 and 2, the aerosol generating medium particle includes a substrate 1, a smoke generating medium 2 and / or an aroma enhancing medium 3, and a hydrophobic structure 4.

[0036] The substrate 1 has a plurality of receiving holes 11, at least some of which form openings 11a on the outer surface of the substrate 1. The receiving holes 11 can be through holes, blind holes, or a combination of through holes and blind holes, and there is no limitation thereto.

[0037] As an example, substrate 1 can be obtained from a porous material through processes such as cutting, shaping, and sieving. The porous material here can be a natural porous material, that is, a structure with multiple pores that has not undergone artificial processing or has minimal artificial processing, such as rush pith or bamboo fungus. Alternatively, the porous material can be a material formed from natural materials through processes such as foaming, such as foamed bamboo. Or, the porous material can be a synthetic material. This embodiment does not impose any limitations on this.

[0038] The specific shape and size of the substrate 1 are not limited. For example, the substrate 1 can be spherical particles, strip particles, polyhedral particles, irregular particles, etc.

[0039] Smoke-generating medium 2 and / or flavor-enhancing medium 3 are disposed within the receiving hole 11. The smoke-generating medium 2 here includes, but is not limited to, glycerin, and the flavor-enhancing medium 3 here includes, but is not limited to, flavorings, nicotine preparations, cooling agents, etc.

[0040] In this embodiment, the receiving hole 11 may contain only the smoke-generating medium 2. In this case, the aerosol-generating medium particles can be used in conjunction with other aerosol-generating matrices or other structures (such as popping beads) that have aroma-enhancing functions. Alternatively, the receiving hole 11 may contain only the aroma-enhancing medium 3. In this case, the aerosol-generating medium particles can be used in conjunction with other aerosol-generating matrices or other structures that have smoke-generating functions. Of course, the receiving hole 11 often contains both the smoke-generating medium 2 and the aroma-enhancing medium 3 simultaneously.

[0041] The hydrophobic structure 4 is disposed on the outer side of the substrate 1 and at least partially covers the opening 11a of the receiving hole 11. The hydrophobic structure 4 here specifically refers to a structure formed by a hydrophobic material. A hydrophobic material is a type of material that repels water. The hydrophobic material can be a natural hydrophobic material or an artificially synthesized hydrophobic material, and there is no limitation on this.

[0042] In this embodiment, the hydrophobic structure 4 may cover only a portion of the opening 11a of the receiving hole 11, or it may cover all the openings 11a of the receiving hole 11. Furthermore, for a single receiving hole 11, the shielding structure may completely cover the opening 11a of the receiving hole 11, or it may only cover a portion of the opening 11a of the receiving hole 11.

[0043] The specific structural form of the hydrophobic structure 4 is not limited. For example, the hydrophobic structure 4 can be a relatively dense coating structure or a relatively sparse granular structure. The hydrophobic structure 4 can adhere to the outer surface of the substrate 1 by its own physical properties or by means of an adhesive, etc.

[0044] As mentioned above, in related technologies, problems such as dampness and mold growth of the smoke-generating medium and / or volatilization of the aroma-enhancing medium may occur during the storage of the aerosol generating matrix, resulting in a poor suction experience when the aerosol generating matrix is ​​actually used.

[0045] In this embodiment, the smoke-generating medium 2 and / or the flavoring medium 3 are disposed in the receiving hole 11 of the substrate 1, and a hydrophobic structure 4 is used to at least partially cover the opening 11a of the receiving hole 11. The hydrophobic structure 4 can restrict the movement of water vapor between the external environment and the receiving hole 11, thereby reducing the probability that water vapor in the external environment will enter the receiving hole 11 and cause the smoke-generating medium 2 to become damp and moldy, and / or restricting the flavoring medium 3 in the receiving hole 11 from evaporating into the external environment, thereby improving the smoking experience.

[0046] On the other hand, in this embodiment, the porous structure of the substrate 1 enables it to have a high loading capacity for the smoke-generating medium 2 and / or the aroma-enhancing medium 3 (taking rush as an example, it can adsorb 3-15 times its own weight of the smoke-generating medium 2 and / or the aroma-enhancing medium 3), thereby increasing the amount of smoke and / or the aroma during the inhalation process, thus improving the inhalation experience.

[0047] On the other hand, in this embodiment, the receiving hole 11 of the substrate 1 has a certain adsorption force for the smoke-generating medium 2 and / or the aroma-enhancing medium 3, and the hydrophobic structure 4 also has a certain blocking force. When the aerosol generating medium particles are actually heated, as the substrate 1 heats up, the smoke-generating medium 2 and / or the aroma-enhancing medium 3 will continuously migrate towards the opening 11a of the receiving hole 11. The traction force of heat conduction competes with the adsorption force of the substrate 1 itself and the blocking force of the hydrophobic structure 4. By controlling this competitive relationship, the gradual release of smoke and aroma can be achieved, thereby increasing the number of puffs and the consistency of each puff, and thus improving the vaping experience. As an example, this competitive relationship can be adjusted by adjusting the material of the substrate 1 (different materials of substrate 1 have different adsorption capacities), the structural form and number of the hydrophobic structure 4, and the heating intensity during actual use.

[0048] In summary, the aerosol generating medium particles of this embodiment can increase the loading of smoke-generating medium 2 and / or aroma-enhancing medium 3, reduce the probability of smoke-generating medium 2 becoming damp and moldy during storage and / or limit the volatilization of aroma-enhancing medium 3 to the outside during storage, and can achieve the gradual release of smoke and / or aroma, resulting in a better smoking experience.

[0049] The aerosol generating medium particles of this embodiment can be applied to any suitable aerosol generating article. In some embodiments, the aerosol generating article refers to the aerosol generating medium segment. In some embodiments, the aerosol generating article refers to a cigarette structure including an aerosol generating medium segment and a functional segment.

[0050] Taking the application of aerosol generating medium particles in aerosol generating medium segments as an example, aerosol generating medium particles can be directly filled into packaging paper to form an aerosol generating medium segment. Alternatively, aerosol generating medium particles can be filled into packaging paper together with other structural forms of aerosol generating matrices (such as aerosol generating matrix fragments or aerosol generating matrix strips) to form an aerosol generating medium segment. Or, aerosol generating medium particles can be adsorbed onto one or both surfaces of an aerosol generating sheet, and then rolled up to form an aerosol generating medium segment.

[0051] In some embodiments, the maximum diameter of the substrate 1 is 1-5 mm, such as 1 mm, 1.5 mm, 2 mm, 2.5 mm, 3 mm, 3.5 mm, 4 mm, 4.5 mm, 5 mm, etc. Specifically, the maximum diameter refers to the maximum straight-line distance between any two points on the outer surface of the substrate 1; in other words, the maximum diameter refers to the diameter of the circumscribed sphere of the substrate 1. For example, if the substrate 1 is a spherical particle, the maximum diameter is the maximum diameter of the substrate 1; if the substrate 1 is a cylindrical particle, the maximum diameter is the axial length of the cylindrical particle or the maximum diameter of its radial cross-section.

[0052] In this embodiment, the aerosol generating medium particles have a small volume, which helps to increase the filling amount when the aerosol generating medium particles are actually applied to aerosol generating products, thereby improving the suction experience of aerosol generating products.

[0053] In some embodiments, the substrate 1 is formed by cutting a porous material. This reduces the difficulty of preparing the substrate 1, thereby reducing the preparation cost of the aerosol generating medium particles.

[0054] In some embodiments, the porous materials include rush pith, bamboo fungus, freeze-dried plants, and foamed plants. For example, freeze-dried plants can be freeze-dried fruits, vegetables, etc., and foamed plants can be foamed bamboo. It should be noted that since the aerosol generating medium particles need to be heated during actual use, to minimize the generation of unpleasant odors during heating, when selecting vegetables and fruits as porous materials, varieties with lower sugar content should be chosen whenever possible. It should also be noted that the aroma carried by some plants (such as bamboo) may be unnecessary for the actual aerosol generating medium particles during absorption; therefore, when selecting such varieties of plants as porous materials, deodorization treatment can be performed on them.

[0055] In this embodiment, the porous material is selected from natural plants. Compared with artificially synthesized porous materials, it can further reduce the preparation cost of aerosol generating medium particles and reduce the possibility that aerosol generating medium particles will produce unpleasant odors and / or harmful gases when heated.

[0056] In some embodiments, referring to FIG1, the hydrophobic structure 4 includes hydrophobic powder 41, which is attached to the outer surface of the substrate 1. The hydrophobic powder 41 here may be formed by crushing the hydrophobic material mentioned above. More specifically, the hydrophobic material may be crushed and sieved through a sieve with a mesh size greater than or equal to 100 to obtain the hydrophobic powder 41, such as by sieving through a sieve with a mesh size of 100-160.

[0057] In this embodiment, during the actual preparation process, the substrate 1, which adsorbs the smoke-generating medium 2 and / or the aroma-enhancing medium 3, can be directly placed into the hydrophobic powder 41 and stirred, so that the hydrophobic powder 41 adheres to the outer surface of the substrate 1 to form a powder-coated hydrophobic structure 4. In this way, the preparation cost of aerosol generating medium particles can be further reduced.

[0058] In some embodiments, the hydrophobic powder 41 is formed by pulverizing hydrophobic herbal materials. These hydrophobic herbal materials include, but are not limited to, rush, lemongrass, rosemary, and corn silk.

[0059] In this embodiment, natural hydrophobic herbal materials are used to prepare hydrophobic powder 41. Compared with using artificially synthesized hydrophobic materials, this can further reduce the preparation cost of aerosol generating medium particles and further reduce the possibility that aerosol generating medium particles will produce unpleasant odors and / or harmful gases when heated. Similarly, in some embodiments, the hydrophobic herbal materials can also be deodorized to reduce the occurrence of unwanted fragrances.

[0060] In some embodiments, the hydrophobic powder 41 is coated with a smoke-generating medium 2 and / or a fragrance-enhancing medium 3. The coating of the hydrophobic powder 41 with the smoke-generating medium 2 and / or the fragrance-enhancing medium 3 helps to further increase the loading of aerosol-generating medium particles, and the smoke-generating medium 2 and / or the fragrance-enhancing medium 3 typically contain surface-active ingredients, thus helping to improve the adhesion between the hydrophobic powder 41 and the substrate 1.

[0061] In some embodiments, referring to FIG2, the hydrophobic structure 4 includes a hydrophobic coating 42 coated on the outer surface of the substrate 1. Compared with the hydrophobic powder 41 mentioned above, the structure of the hydrophobic coating 42 is relatively more dense. As an example, in the actual preparation process, the hydrophobic material can be prepared into a slurry, the slurry can be coated on the outer surface of the substrate 1 and dried to form the hydrophobic coating 42.

[0062] In this embodiment, a hydrophobic coating 42 is used to form a hydrophobic structure 4, which can further improve the water vapor isolation effect of the hydrophobic coating 42, thereby improving the suction experience.

[0063] In some embodiments, the hydrophobic coating 42 includes hydrophobic plant powder and broadleaf plant fiber. The water-carrying plant powder mainly provides a hydrophobic effect, while the broadleaf plant fiber can provide some support for the water-carrying herbaceous material powder, so that the two can form a relatively dense hydrophobic coating 42 when combined.

[0064] The types of hydrophobic plants mentioned above can include the hydrophobic herbaceous materials mentioned above, or other types of hydrophobic plants, such as honeysuckle, mulberry leaves, chrysanthemum, dandelion, kudzu root, ophiopogon japonicus, almond, hyacinth bean, and lycium bark.

[0065] The particle size of the hydrophobic plant powder here can be the same as or different from that of the hydrophobic powder 41 mentioned above. For example, the hydrophobic powder 41 mentioned above can be a powder obtained by crushing hydrophobic herbaceous material and sieving it through a sieve with a mesh size of 100 or larger, such as powder sieved through a 100-160 mesh sieve. The hydrophobic plant powder here can be a powder obtained by crushing hydrophobic plants and sieving them through a sieve with a mesh size of 160 or larger, such as powder sieved through a 160-200 mesh sieve.

[0066] The broad-leaved plants here include, but are not limited to, poplar, eucalyptus, and mulberry branches.

[0067] In this embodiment, hydrophobic plant powder and broad-leaved plant fiber are used to form the hydrophobic coating 42. That is, natural plant materials are selected as the whole to form the hydrophobic coating 42. In this way, the preparation cost of aerosol generating medium particles can be further reduced, and the possibility of aerosol generating medium particles producing unpleasant odors and / or harmful gases when heated can be further reduced.

[0068] In some embodiments, the thickness of the hydrophobic coating 42 is 0.3-1.2 mm. More specifically, the thickness of the hydrophobic coating 42 can be 0.5-1 mm, such as 0.5 mm, 0.55 mm, 0.6 mm, 0.65 mm, 0.7 mm, 0.75 mm, 0.8 mm, 0.85 mm, 0.9 mm, 0.95 mm, 1 mm, etc. In some embodiments, the ratio of the maximum diameter of the substrate 1 to the thickness of the hydrophobic coating 2 is 1:10-1:2.

[0069] The hydrophobic coating 42 of the above thickness can achieve a better effect of blocking water vapor, and can also make the smoke-generating medium and / or aroma-enhancing medium volatilize better from the receiving hole when heated.

[0070] In some embodiments, the hydrophobic coating 42 includes a smoke-generating medium 2 and / or a fragrance-enhancing medium 3, which helps to further increase the loading of aerosol-generating medium particles. In this embodiment, the inclusion of a smoke-generating medium 2 and / or a fragrance-enhancing medium 3 in the hydrophobic coating 42 can be achieved by adding a smoke-generating medium 2 and / or a fragrance-enhancing medium 3 to the slurry used to form the hydrophobic coating 42.

[0071] An embodiment of this application also provides a method for preparing aerosol generating medium particles. Referring to FIG3, the method includes the following steps.

[0072] Step S301: Prepare a substrate. The substrate has multiple receiving holes, which form openings on the outer surface of the substrate.

[0073] Step S302: Allow the smoke-generating medium and / or aroma-enhancing medium to enter the accommodating pores of the substrate to obtain an adsorbent.

[0074] Step S303: The hydrophobic structure is disposed on the outside of the adsorbent, such that the hydrophobic structure at least partially covers the opening of the accommodating pore, thereby obtaining aerosol generating medium particles.

[0075] In the preparation method of aerosol generating medium particles in this embodiment, a smoke-generating medium and / or a flavoring medium are placed in the receiving pores of the substrate, and a hydrophobic structure is used to at least partially cover the opening of the receiving pores. The hydrophobic structure can restrict the movement of water vapor between the external environment and the receiving pores, thereby reducing the probability of water vapor in the external environment entering the receiving pores and causing the smoke-generating medium to become damp and moldy, and / or restricting the flavoring medium in the receiving pores from evaporating into the external environment, thereby improving the inhalation experience of the prepared aerosol generating medium particles.

[0076] On the other hand, in this embodiment, the porous structure of the substrate allows it to have a high loading capacity for smoke-generating media and / or aroma-enhancing media, thereby increasing the amount of smoke and / or the aroma during the inhalation process, thus improving the inhalation experience of aerosol-generating media particles.

[0077] On the other hand, in this embodiment, the accommodating pores of the substrate have a certain adsorption force for the smoke-generating medium and / or the aroma-enhancing medium, and the hydrophobic structure also has a certain blocking force. When the aerosol generating medium particles are actually heated, as the substrate heats up, the smoke-generating medium and / or the aroma-enhancing medium will continuously migrate towards the opening of the accommodating pores. The traction force of heat conduction competes with the adsorption force of the substrate itself and the blocking force of the hydrophobic structure. By controlling this competition, the gradual release of smoke and aroma can be achieved, thereby increasing the number of puffs and the consistency of each puff, and thus improving the puffing experience of the aerosol generating medium particles.

[0078] In summary, the aerosol generating medium particles prepared by the method of this embodiment can increase the loading of smoke-generating medium and / or aroma-enhancing medium, reduce the probability of smoke-generating medium becoming damp and moldy during storage and / or limit the volatilization of aroma-enhancing medium to the outside during storage, and can achieve the gradual release of smoke and / or aroma, resulting in a better inhalation experience.

[0079] In this embodiment, in step S301, the substrate can be obtained by processing the porous material through methods such as cutting, shaping, and sieving. The porous material here can be a natural porous material, that is, a structure with multiple pores that has not undergone artificial processing or has minimal artificial processing, such as rush pith or bamboo fungus. Alternatively, the porous material can be a material formed from natural materials through foaming processes, such as foamed bamboo. Or, the porous material can be a synthetic material. This embodiment does not impose any limitations on this.

[0080] In step S302, the smoke-generating medium and / or flavoring medium can be mixed with the substrate to allow it to enter the pores and form an adsorbent. The smoke-generating medium here includes, but is not limited to, glycerin, and the flavoring medium here includes, but is not limited to, fragrances, nicotine preparations, cooling agents, etc.

[0081] In step S303, the adsorbent can be placed in hydrophobic powder, so that the hydrophobic powder adheres to the outer surface of the adsorbent to form a powder-coated hydrophobic structure. Alternatively, a hydrophobic coating can be applied to the surface of the adsorbent to form a coated hydrophobic structure. Or, any other suitable method can be used to form a hydrophobic structure, without limitation.

[0082] In some embodiments, the preparation of the substrate in step S301 specifically includes: cutting a porous material to form a substrate. In this embodiment, the maximum diameter of the substrate can be 1-5 mm, such as 1 mm, 1.5 mm, 2 mm, 2.5 mm, 3 mm, 3.5 mm, 4 mm, 4.5 mm, 5 mm, etc. The aerosol generating medium particles actually prepared in this embodiment have a small volume. When the aerosol generating medium particles are actually applied to aerosol generating products, it helps to increase the filling amount, thereby improving the suction experience of the aerosol generating products.

[0083] It should be noted that in this embodiment, the maximum diameters of the multiple substrates formed by cutting the porous material can be substantially the same, such as the difference in maximum diameter not exceeding 0.1mm, 0.2mm, 0.3mm, 0.4mm, 0.5mm, 0.8mm, 0.7mm, etc. Various different types of porous materials can be selected to cut and form the substrates. The maximum diameter range of the substrates formed by cutting different porous materials can be the same or different (for example, the maximum diameter of the substrate formed by cutting one porous material is 1-2mm, and the maximum diameter of the substrate formed by cutting another porous material is 2-4mm), and there is no limitation in this regard.

[0084] In some embodiments, the porous material includes at least one of the following: rush pith, bamboo fungus, freeze-dried plants, and foamed plants. As an example, the freeze-dried plants can be freeze-dried fruits, vegetables, etc., and the foamed plants can be foamed bamboo. It should be noted that since the aerosol generating medium particles need to be heated during actual use, in order to minimize the generation of unpleasant odors during heating, when selecting vegetables and fruits as porous materials, varieties with lower sugar content should be chosen whenever possible.

[0085] In this embodiment, the porous material is selected from natural plants. Compared with artificially synthesized porous materials, it can further reduce the preparation cost of aerosol generating medium particles and reduce the possibility that aerosol generating medium particles will produce unpleasant odors and / or harmful gases when heated.

[0086] In some embodiments, the preparation of the substrate in step S301 further includes: deodorizing the porous material. In this embodiment, the specific means of deodorizing the porous material are not limited, such as steaming, baking, washing, or using chemical methods to remove the fragrance. The deodorization treatment can be performed before or after cutting the porous material; there is no limitation on this.

[0087] In this embodiment, deodorizing the porous material can remove some of the fragrance carried by the porous material itself (such as bamboo), reducing the occurrence of fragrances that users do not want.

[0088] In some embodiments, the preparation of the substrate in step S301 further includes: sieving the cut porous material.

[0089] In this embodiment, sieving the cut porous material helps improve the consistency of the prepared aerosol generating medium particles, which helps improve the suction experience when the aerosol generating medium particles are actually applied to aerosol generating products.

[0090] It should be noted that, as mentioned above, in step S301, a variety of different porous materials can be used to cut and form the substrate. In this embodiment, different pore sizes of filter screens can be used to screen the materials after cutting different porous materials, or filter screens with the same pore size can be used.

[0091] In some embodiments, the preparation of the substrate in step S301 further includes foaming the porous material. This can further increase the number and / or size of the pores in the porous material, thereby improving the substrate's load-bearing capacity for smoke-generating media and / or aroma-enhancing media.

[0092] In this embodiment, the specific process of foaming is not limited. As mentioned above, the porous material may include foamed plants. In this case, the foamed plants can be subjected to a second foaming process.

[0093] In some embodiments, step S302, which involves introducing the smoke-generating medium and / or the aroma-enhancing medium into the receiving pore to form an adsorbent, includes: mixing the substrate with the smoke-generating medium and / or the aroma-enhancing medium, and stirring under vacuum or pressure conditions to introduce the smoke-generating medium and / or the aroma-enhancing medium into the receiving pore.

[0094] In this embodiment, the mixture of the substrate and the smoke-generating medium and / or aroma-enhancing medium is stirred under vacuum or pressurized conditions. It can be understood that under vacuum or pressurized conditions, there is a pressure difference between the internal pressure of the accommodating pore and the external pressure. This helps to increase the amount of smoke-generating medium and / or aroma-enhancing medium adsorbed by the substrate, thereby helping to increase the amount of smoke and / or aroma intensity during the inhalation process.

[0095] In some embodiments, mixing the substrate with a smoke-generating medium and / or a flavoring medium and stirring under vacuum or pressure conditions includes: first mixing the substrate with the smoke-generating medium and stirring under vacuum conditions; and then mixing the flavoring medium with the substrate and stirring under vacuum or pressure conditions.

[0096] In this embodiment, the substrate is first made to adsorb the smoke-generating medium, and then the substrate is made to adsorb the aroma-enhancing medium. The advantage of this secondary adsorption method is that most of the aroma-enhancing medium will be located near the outlet of the receiving hole, forming another barrier between the smoke-generating medium and the moisture in the external environment. This can further reduce the possibility of the smoke-generating medium getting damp and moldy during storage and improve the smoking experience.

[0097] In some embodiments, step S302, which involves introducing the smoke-generating medium and / or aroma-enhancing medium into the accommodating pores to form an adsorbent, includes spraying the smoke-generating medium and / or aroma-enhancing medium onto the surface of the substrate in the form of a spray. This method helps to save on the amount of smoke-generating medium and / or aroma-enhancing medium used, thereby reducing preparation costs. Furthermore, it helps to ensure that each accommodating pore of the substrate has relatively sufficient contact with the smoke-generating medium and / or aroma-enhancing medium, further increasing the adsorption capacity.

[0098] In some embodiments, in step S302, the smoke-generating medium includes glycerin, the flavoring medium includes flavoring, and nicotine preparation and / or cooling agent, and mixing the substrate with the smoke-generating medium and / or flavoring medium includes: mixing 10-15 parts of the substrate with 40-60 parts of glycerin, 3-5 parts of flavoring, and 1-2 parts of nicotine preparation and / or cooling agent by weight.

[0099] The medium and ratio used in this embodiment help to further improve the suction effect of aerosol generating medium particles.

[0100] As mentioned above, in some embodiments, the substrate can first adsorb the smoke-generating medium and then adsorb the flavoring medium. In this embodiment, 10-15 parts of the substrate can be mixed with 40-60 parts of glycerin for the first adsorption. After the adsorption is completed, the material is mixed with 3-5 parts of flavoring and 1-2 parts of nicotine preparation and / or cooling agent for the second adsorption.

[0101] In some embodiments, stirring under vacuum conditions in step S302 includes stirring at a vacuum level of less than 0.1 MPa, with the vacuum being broken once every set time interval during stirring. For example, stirring can be performed at a vacuum level of 0.085-0.095 MPa. In this embodiment, there are no limitations on the stirring duration and the set time interval. For example, the stirring duration can be 20-30 minutes, the set time interval can be 2-10 minutes, and the vacuum is broken 2-15 times during stirring.

[0102] In this embodiment, the vacuum is broken once at set intervals during stirring. In this way, the pressure difference when the vacuum is broken can be used to force the fuming medium and / or the aroma-enhancing medium into the receiving hole, thereby further increasing the adsorption capacity.

[0103] As mentioned above, in some embodiments, the substrate can first adsorb the smoke-generating medium and then adsorb the aroma-enhancing medium. Each adsorption is performed under vacuum conditions. In this embodiment, each stirring can be carried out in the manner described above. The stirring time and / or the number of vacuum breaks during the two adsorptions can be the same or different.

[0104] In some embodiments, step S303, setting the hydrophobic structure on the outside of the adsorbent, includes: preparing hydrophobic powder, mixing the hydrophobic powder with the adsorbent, and making the hydrophobic powder adhere to the outer surface of the adsorbent to form a hydrophobic structure.

[0105] It is understood that the pores contain the fuming medium and / or the aroma-enhancing medium, and there may be residual fuming medium and / or aroma-enhancing medium on the outer surface of the adsorbent. Therefore, when the hydrophobic powder is mixed with the adsorbent, it can come into contact with the fuming medium and / or the aroma-enhancing medium and generate interaction forces. These forces enable the hydrophobic powder to adhere to the outer surface of the adsorbent, thereby forming a hydrophobic structure.

[0106] In this embodiment, a hydrophobic structure is formed by attaching hydrophobic powder to the outer surface of the adsorbent. This method has the advantages of being simple to operate and low in cost. Furthermore, it eliminates the need for heat treatment to fix the hydrophobic structure relative to the adsorbent, thereby reducing the volatilization of the aroma-enhancing and / or smoke-generating media during operation. Of course, in some other embodiments, a hydrophobic slurry can also be prepared and coated onto the outer surface of the adsorbent to form a hydrophobic coating.

[0107] In some embodiments, the preparation of hydrophobic powder in step S303 includes: pulverizing hydrophobic herbal materials and sieving them through a sieve with a mesh size of 100 or larger to obtain hydrophobic powder.

[0108] The hydrophobic herbaceous materials used here include, but are not limited to, rush, lemongrass, rosemary, and corn silk.

[0109] In this embodiment, natural hydrophobic herbal materials are used to prepare hydrophobic powder. Compared with using artificially synthesized hydrophobic materials, this can further reduce the preparation cost of aerosol generating medium particles and further reduce the possibility of unpleasant odors and / or harmful gases being generated by aerosol generating medium particles when heated. Furthermore, in this embodiment, the hydrophobic powder is obtained by sieving through a sieve with a mesh size of 100 or larger, which helps to improve the uniformity of the hydrophobic powder particle size and the overall thickness of its hydrophobic structure is more uniform.

[0110] In some embodiments, mixing the hydrophobic powder with the adsorbent comprises mixing 1 part by weight of the adsorbent with 3-5 parts by weight of the hydrophobic powder. This ratio helps to ensure that the hydrophobic powder adheres relatively uniformly to the surface of the adsorbent, improving its isolation effect and thus enhancing the suction experience of aerosol-generating media particles.

[0111] In some embodiments, before mixing the hydrophobic powder with the adsorbent, the method further includes: adsorbing the hydrophobic powder with a smoke-generating medium and / or a fragrance-enhancing medium. This helps to further increase the loading of aerosol-generating medium particles, and the smoke-generating medium and / or fragrance-enhancing medium typically contain surface-active ingredients, thus helping to improve the adhesion between the hydrophobic powder and the substrate.

[0112] In this embodiment, the hydrophobic powder can be made to adsorb the smoke-generating medium and / or the aroma-enhancing medium by immersing the hydrophobic powder in the smoke-generating medium and / or the aroma-enhancing medium, or by spraying the smoke-generating medium and / or the aroma-enhancing medium onto the outer surface of the hydrophobic powder.

[0113] The preparation method of aerosol generating medium particles mentioned above will be described in more detail below with reference to a specific embodiment.

[0114] To prepare the substrate, the porous material is cut and sieved to obtain a substrate with a maximum diameter of 1-5 mm. The porous material includes one or more of the following: rush pith, bamboo fungus, low-sugar freeze-dried fruit, low-sugar freeze-dried vegetables, and bamboo that has undergone foaming and deodorization treatment.

[0115] By weight, take 10-15 parts of granules and 40-60 parts of glycerin, spray the glycerin onto the surface of the substrate, and stir under a vacuum of 0.085-0.095 MPa for 20-30 minutes. During stirring, break the vacuum every 2-10 minutes to obtain the material adsorbed once.

[0116] The material adsorbed in the first stage is mixed with 3-5 parts of fragrance (the solvent is mainly propylene glycol and a small amount of alcohol), 1-2 parts of nicotine preparation and / or cooling agent, and sprayed onto the surface of the substrate. The mixture is stirred under a vacuum of 0.085-0.095 MPa for 20-30 minutes, with the vacuum being broken every 2-10 minutes during stirring, to obtain the adsorbate for secondary adsorption.

[0117] Hydrophobic herbal materials are pulverized and sieved through a sieve with a mesh size of 100 or larger to obtain hydrophobic powder. Hydrophobic herbal materials include rush, lemongrass, rosemary, corn silk, etc.

[0118] By weight, 1 part of adsorbent is mixed with 3-5 parts of hydrophobic powder, so that the hydrophobic powder adheres to the surface of the adsorbent to obtain aerosol generating medium particles.

[0119] Experiments show that the aerosol generating medium particles prepared using the method described in this application have a glycerol loading of over 70% (dry basis), a moisture gain of less than 8% during the shelf life, and a cost that is more than 35% lower than that of aerosol generating matrix sheets or particles in related technologies. Aerosol generating products prepared using these particles have more than 20 puffs, an average smoke volume of more than 5.5 mg / puff, and a puff-by-puff consistency RSD of less than 20%.

[0120] Embodiments of this application also provide aerosol generating medium particles, which are prepared by the aerosol generating medium particle preparation method described in any of the above embodiments. The aerosol generating medium particles of this application embodiment possess all the advantages of the aerosol generating medium particle preparation methods described above, and will not be repeated here.

[0121] Embodiments of this application also provide an aerosol generating article, comprising aerosol generating medium particles as described in any of the foregoing embodiments. The specific structure of the aerosol generating article can be referred to the description in the relevant sections above, and will not be repeated here.

[0122] The aerosol generating articles of the present application have all the advantages of the aerosol generating medium particles described above, and will not be repeated here.

[0123] In some embodiments, referring to Figures 4-6, the aerosol generating article includes an aerosol generating medium segment 100, the aerosol generating medium segment 100 includes a sheet matrix 10, the sheet matrix 10 has a particle layer 21, and aerosol generating medium particles 10 are disposed on the particle layer 21.

[0124] In this embodiment, aerosol generating medium particles are disposed on the particle layer 21 of the sheet matrix 20. This allows for control over the distribution of aerosol generating medium particles 10, which helps reduce displacement caused by factors such as vibration during transportation, storage, or use, thereby improving the stability of the aerosol generating product's suction resistance.

[0125] In this embodiment, the particle layer 21 can be a single layer or multiple layers, and there is no limitation on this.

[0126] In some embodiments, the sheet-like matrix includes a base layer 22 stacked on top of the particle layer 21. The specific type of the base layer 22 is not limited, but it can provide support for the particle layer 21 and further improve the orderly distribution of the aerosol generating medium particles 10.

[0127] In some embodiments, the base layer 22 includes a substrate layer, which includes plant fiber fabric, nonwoven fabric and / or metal foil.

[0128] In other words, the substrate layer can be non-woven fabric, metal foil, or both.

[0129] Here, the metal foil not only provides support but also facilitates heat transfer, thereby improving atomization efficiency and rapid smoke output, and ultimately enhancing the vaping experience.

[0130] Non-woven fabric can carry fragrance and increase breathability; in addition, non-woven fabric also has the functions of cushioning and elasticity, which is beneficial to the cooperation between the heating component and the aerosol generating medium section 100.

[0131] In other embodiments, the base layer includes a cast layer constructed from a cast slurry through casting, and the cast layer can be heated and atomized to generate an aerosol.

[0132] Both the cast layer and the granular layer can be heated to generate aerosols, which is conducive to the rapid explosion of smoke and a large amount of smoke. Furthermore, the aerosols generated by the cast layer and the granular layer 21 can mix and interact with each other, which can increase the comfort of the aerosols and improve the inhalation quality.

[0133] In some embodiments, the sheet matrix 20 further includes a covering layer, wherein at least one of the granular layers 21 is provided with a covering layer on the side away from the base layer 10, and the covering layer includes nonwoven fabric and / or metal foil.

[0134] When the particle layer 21 is multi-layered, one of the particle layers 21 may have a coating layer on the side away from the base layer 10, or the outermost two particle layers 21 may have a coating layer on the side away from the base layer 10.

[0135] In this embodiment, by providing a coating layer on the surface of the particle layer 21, it is further beneficial to improve the problem of aerosol generating medium particles 22 falling off the particle layer 21. In addition, during the winding process of the sheet matrix 1, the coating layer can also provide a certain support, thereby improving the roundness and production efficiency of the aerosol generating medium segment 100.

[0136] The specific type of covering layer is not limited here. For example, the covering layer includes nonwoven fabric and / or metal foil. That is, the covering layer can be nonwoven fabric, metal foil, or both.

[0137] The specific type of metal foil is not limited here; for example, it could be aluminum foil.

[0138] In some embodiments, the coating layer comprises a metal foil. The metal foil facilitates heat transfer, thereby improving atomization efficiency and rapid vapor production, and thus enhancing the vaping experience.

[0139] For example, the thickness of the metal foil is 0.01mm-0.015mm.

[0140] In some embodiments, the covering layer comprises a nonwoven fabric. The nonwoven fabric can carry fragrance and increase breathability; in addition, the nonwoven fabric also has a cushioning and elastic effect, which is beneficial to the cooperation between the heating component and the aerosol generating medium segment 100.

[0141] For example, the weight of the nonwoven fabric is 5g-20g.

[0142] Specifically, the nonwoven fabric is pre-treated under a closed system and a positive pressure of 0.1MPa-0.2MPa to absorb 0.5-1.5 times its own weight in fragrance, and the covering layer is fixed to the base layer 10 with quick-drying tobacco adhesive or degreased cotton thread.

[0143] In some embodiments, the covering layer includes a cotton layer.

[0144] In some embodiments, the sheet matrix 20 includes a coating layer configured to be formed by coating a cast slurry onto the surface of the granular layer 21, and the coating layer can be heated and atomized to generate an aerosol.

[0145] In this embodiment, by providing a coating layer on the surface of the particle layer 21, it is further beneficial to improve the problem of the aerosol generation medium particles 22 falling off the particle layer 21. In addition, the coating layer is formed by coating the surface of the particle layer 21 with cast slurry. The coating layer can be heated and atomized to generate aerosol. This is beneficial to increase the amount of smoke in large-aperture smoke, and make the smoke burst fast, the amount of smoke large and the consistency good throughout the entire smoking process.

[0146] For example, the coating layer has a thickness of 0.2 mm to 0.4 mm. After the cast paste is coated on the surface of the particle layer 21, the coating layer is dried in hot air at 60°C to 80°C for 30 min to 60 min to obtain the coating layer.

[0147] In some embodiments, referring to FIG5, the aerosol generating medium segment 100 is configured as a wound structure formed by winding the sheet-like matrix 20. This further enhances the ordered distribution of the aerosol generating medium particles 10.

[0148] In this embodiment, the specific direction in which the sheet-like matrix 20 is wound is not limited. For example, the sheet-like matrix 20 can be wound in the forward direction so that, in the radial cross-section of the aerosol generating medium segment 100, the particle layer 21 is located inside the base layer 22 (towards the center of the cross-section). Alternatively, the sheet-like matrix 20 can be wound in the reverse direction so that, in the radial cross-section of the aerosol generating medium segment 100, the particle layer 21 is located outside the base layer 22 (away from the center of the cross-section). It should be noted that "forward" and "reverse" here refer to any direction that can achieve the corresponding winding effect.

[0149] There is no limit to the specific number of layers of the sheet-like matrix.

[0150] For example, the sheet-like matrix 20 can be wound into a single layer, meaning that there is no overlapping area of ​​the sheet-like matrix 20 along the radial direction of the aerosol generating medium section 100. Of course, there can be an overlapping area at the connection between the first and last ends of the sheet-like matrix 20 to improve the reliability of the connection between the first and last ends. By setting the number of winding layers of the sheet-like matrix 20 to a single layer, it is beneficial to improve the heating efficiency, thereby improving the mist output efficiency and ensuring good mist output consistency.

[0151] For example, in an embodiment where the sheet matrix 20 has a single winding layer, the thickness of the base layer 22 can be increased, and the particle size of the aerosol generating medium particles 10 can be enlarged. This allows for circumferential heating to improve heating efficiency. Furthermore, it enables the formation of stable air channels within the sheet matrix 20, thereby improving the stability of the suction resistance.

[0152] Alternatively, the sheet-like matrix 20 may have multiple winding layers. In this embodiment, "multiple layers" refers to two or more layers. Here, the number of winding layers of the sheet-like matrix 20 can be, for example, 2, 3, 4, 5, 6, 7, 8, or more. Exemplarily, in an embodiment where the sheet-like matrix 1 has multiple winding layers, the thickness of the base layer 22 can be reduced, and the particle size of the aerosol generating medium particles 10 can be decreased, making it suitable for different heating methods. In this embodiment, by setting the number of winding layers of the sheet-like matrix 1 to multiple layers, stable air channels can be formed between adjacent layers, thereby improving the stability of the suction resistance.

[0153] In some embodiments, referring to FIG6, the aerosol generating article includes a functional segment and an outer coating layer (not shown), and the aerosol generating medium segment 100 extends along a first direction. Exemplarily, the first direction is the direction shown as L in FIG6.

[0154] It should be noted that the aerosol generating article extends in the same direction as the aerosol generating medium section 100. That is, the aerosol generating article also extends along the first direction.

[0155] A functional section is located at one end of the aerosol generating medium section 100 along a first direction. The functional section includes a cooling section 300 and a filtration section 200, with the cooling section 300 located between the filtration section 200 and the aerosol generating medium section 100. An outer wrapping layer is wrapped around the outer periphery of the functional section and the aerosol generating medium section 100.

[0156] The aerosol generating product is used in conjunction with an aerosol generating device having a heating component. Specifically, the heating component heats and atomizes the aerosol generating medium section 100 to generate aerosol, and the user draws the filtered aerosol through the filter section 200.

[0157] There are various heating methods for the heating components. For example, heating methods include center heating and peripheral heating. Center heating refers to the heating component being inserted into the aerosol generating medium section 100 to bake and heat the aerosol generating medium section 100 from the inside out. Peripheral heating refers to the heating component being positioned around the aerosol generating product to bake and heat the aerosol generating medium section 100 from the outside in. These heating methods can specifically include resistance heating, electromagnetic induction heating, infrared heating, microwave heating, laser heating, air heating, electric field heating, carbon source heating, plasma heating, etc., and are not specifically limited here.

[0158] The cooling section 300 is located between the filtration section 200 and the aerosol generating medium section 100 to cool the aerosol before the filtration section 200 filters it, thereby reducing the temperature of the aerosol and alleviating the "burning" sensation when users inhale the aerosol.

[0159] It should be noted that the aerosol generating product relies on the aerosol generating medium section 100 to generate aerosols, while the functional section does not generate aerosols.

[0160] The material of the outer wrapping layer is not limited, for example, including but not limited to one or more combinations of materials such as fiber paper, metal foil, infrared radiation layer, metal foil composite fiber paper, polyethylene composite fiber paper, PE, PBAT, etc.

[0161] The outer wrapping layer can be in the form of a hollow tube. The aerosol generating medium segment 100 and the functional segment can be arranged sequentially in the hollow tube-shaped outer wrapping layer. The outer wrapping layer can also be a splicing paper. The aerosol generating medium segment 100 and the functional segment are combined into an integrated structure through the splicing paper.

[0162] The first direction is the arrangement direction of the aerosol generating medium section 100, the cooling section 300 and the filtration section 200. The aerosol generating product is inserted into the aerosol generating device along the first direction, and the aerosol generating product is also taken out of the aerosol generating device along the first direction. The length of the aerosol generating medium section 100 along the first direction can be longer, shorter or the same as the length in other directions.

[0163] For example, when the outer contour of the aerosol generating medium segment 100 is cylindrical, the first direction is the axial direction of the aerosol generating medium segment 100. It should be noted that the axial length of the aerosol generating medium segment 100 can be less than its diameter.

[0164] For example, when the aerosol generating medium section 100 has a rectangular outline, the first direction is still the direction defined above, that is, the arrangement direction of the aerosol generating medium section 100, the cooling section 300 and the filtration section 200, or the direction in which the aerosol generating product is placed or removed on the aerosol generating device. The first direction of the aerosol generating medium section 100 can be any of the length, width and height of the rectangular prism.

[0165] In the description of this application, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the embodiments of this application. In this application, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Furthermore, without contradiction, those skilled in the art can combine different embodiments or examples described in this application, as well as features of different embodiments or examples.

[0166] The above description is merely a preferred embodiment of this application and is not intended to limit the application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application.

Claims

1. An aerosol generating medium particle, characterized in that, The aerosol generating medium particles include: a substrate having a plurality of accommodating pores, at least some of which form openings on the outer surface of the substrate; a smoke-generating medium and / or an aroma-enhancing medium disposed within the accommodating pores; and a hydrophobic structure disposed on the outer side of the substrate and at least partially covering the openings of the accommodating pores.

2. The aerosol generating medium particles according to claim 1, characterized in that, The maximum diameter of the substrate is 1-5 mm; and / or the substrate is formed by cutting a porous material.

3. The aerosol generating medium particles according to claim 2, characterized in that, The porous material includes at least one of the following: rush pith, bamboo fungus, freeze-dried plants, and plants that have undergone foaming treatment.

4. The aerosol generating medium particles according to claim 1, characterized in that, The hydrophobic structure includes: hydrophobic powder, which is attached to the outer surface of the substrate; or, the hydrophobic structure includes: a hydrophobic coating, which is coated on the outer surface of the substrate.

5. The aerosol generating medium particles according to claim 4, characterized in that, The hydrophobic powder is formed by pulverizing hydrophobic herbal materials; and / or, the hydrophobic powder adsorbs a smoke-generating medium and / or a fragrance-enhancing medium; and / or the hydrophobic coating includes hydrophobic plant powder and broad-leaved plant fibers; and / or the thickness of the hydrophobic coating is 0.3-1.2 mm; and / or, the hydrophobic coating includes a smoke-generating medium and / or a fragrance-enhancing medium.

6. A method for preparing aerosol generating medium particles, characterized in that, The method includes: preparing a substrate having a plurality of accommodating pores, at least a portion of which form openings on the outer surface of the substrate; allowing a smoke-generating medium and / or an aroma-enhancing medium to enter the accommodating pores to obtain an adsorbent; and disposing a hydrophobic structure on the outside of the adsorbent, such that the hydrophobic structure at least partially covers the openings of the accommodating pores, thereby obtaining aerosol-generating medium particles.

7. The method according to claim 6, characterized in that, The preparation of the substrate includes cutting a porous material to form the substrate, wherein the porous material includes at least one of the following: rush pith, bamboo fungus, freeze-dried plants, and plants that have undergone foaming treatment; and / or the preparation of the substrate further includes: deodorizing the porous material; and / or the preparation of the substrate further includes: sieving the cut porous material; and / or the preparation of the substrate further includes: foaming the porous material.

8. The method according to claim 7, characterized in that, The step of introducing the smoke-generating medium and / or the aroma-enhancing medium into the receiving hole to form an adsorbent includes: mixing the substrate with the smoke-generating medium and / or the aroma-enhancing medium, and stirring under vacuum or pressure conditions to introduce the smoke-generating medium and / or the aroma-enhancing medium into the receiving hole; and / or the step of introducing the smoke-generating medium and / or the aroma-enhancing medium into the receiving hole to form an adsorbent includes: spraying the smoke-generating medium and / or the aroma-enhancing medium onto the surface of the substrate in the form of a spray.

9. The method according to claim 8, characterized in that, The step of mixing the substrate with the smoke-generating medium and / or the aroma-enhancing medium and stirring under vacuum or pressure conditions includes: first mixing the substrate with the smoke-generating medium and stirring under vacuum or pressure conditions, and then mixing the aroma-enhancing medium with the substrate and stirring under vacuum or pressure conditions; and / or the stirring under vacuum conditions includes: stirring under a vacuum degree of less than or equal to 0.1 MPa, and breaking the vacuum once every set time interval during stirring.

10. The method according to any one of claims 6-9, characterized in that, The smoke-generating medium includes glycerin, the flavoring medium includes flavoring, and nicotine preparation and / or cooling agent, and the mixing of the substrate with the smoke-generating medium and / or flavoring medium includes: mixing 10-15 parts of the substrate with 40-60 parts of glycerin, 3-5 parts of flavoring, and 1-2 parts of nicotine preparation and / or cooling agent by weight.

11. The method according to claim 6, characterized in that, The step of setting the hydrophobic structure on the outside of the adsorbent includes: preparing a hydrophobic powder, mixing the hydrophobic powder with the adsorbent, and making the hydrophobic powder adhere to the outer surface of the adsorbent to form the hydrophobic structure.

12. The method according to claim 11, characterized in that, Before mixing the hydrophobic powder with the adsorbent, the method further includes: causing the hydrophobic powder to adsorb a smoke-generating medium and / or a fragrance-enhancing medium.

13. An aerosol generating medium particle, characterized in that, The aerosol generating medium particles are prepared by the aerosol generating medium particle preparation method according to any one of claims 6-12.

14. An aerosol-generating product, characterized in that, The aerosol-generating article comprises aerosol-generating medium particles according to any one of claims 1-5 or 13.

15. The aerosol-generating article according to claim 14, characterized in that, The aerosol generating product includes an aerosol generating medium segment, the aerosol generating medium segment includes a sheet-like matrix, the sheet-like matrix has a granular layer, and the aerosol generating medium particles are disposed in the granular layer.

16. The aerosol-generating article according to claim 15, characterized in that, The aerosol generating medium segment is constructed as a wound structure formed by winding the sheet-like matrix.

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