Aerosol-generating article and aerosol-generating system

Abstract

The present application provides an aerosol-generating article and an aerosol-generating system. The aerosol-generating article comprises: an atomization element, which comprises an aerosol forming agent, and is configured to generate an aerosol when being heated; and an active functional element, which is arranged downstream of the atomization element, wherein the active functional element comprises active particles, and the active particles each comprises a coating layer and an active matrix encapsulated by the coating layer. During use, when the aerosol generated by the atomization element flows downstream through the active functional element, one or more volatile components released from the active matrix are entrained and then delivered downstream. During use of the described aerosol-generating article, on the one hand, the active matrix of the active particles is gradually released to achieve a sustained release effect, which is beneficial for maintaining the uniformity of active components of different puffs; and on the other hand, the aerosol forming agent and the active functional components are provided in different elements, which, compared with the manner of loading same all onto plant tissues, allows for greater loading amounts, thus helping to increase the aerosol yield and flavor volume.

Description

Aerosol generating products and aerosol generating systems

[0001] Cross-reference to related applications

[0002] This application claims priority to Chinese Patent Application No. 202411818451.6, filed on December 10, 2024, entitled "Aerosol Generating Article and Aerosol Generating System", the entire contents of which are incorporated herein by reference. Technical Field

[0003] This application relates to the field of heated non-combustible aerosol generation technology, and in particular to an aerosol generation product and an aerosol generation system. Background Technology

[0004] Tobacco products (such as cigarettes, cigars, etc.) produce tobacco smoke by burning tobacco during use. Efforts are being made to replace these tobacco-burning products by creating products that release compounds without combustion.

[0005] Examples of such products are heating devices that release compounds by heating rather than burning materials. For example, the material can be tobacco or other non-tobacco products, which may or may not contain nicotine. Known tobacco or other non-tobacco products, by incorporating or mixing aerosol-forming agents such as glycerin, flavorings, and binders into the tobacco or non-tobacco material, generate volatile flavor components while the tobacco or non-tobacco material is heated to produce an aerosol and the active ingredient nicotine, thereby altering or enhancing the aroma of the aerosol. When aerosol-forming agents such as glycerin, flavorings, and binders are simultaneously loaded onto tobacco or non-tobacco materials, the limited loading capacity of the tobacco or non-tobacco material restricts the amount of smoke and aroma produced in the aerosol-generated product. Furthermore, when all aerosol-forming agents and flavorings are loaded into the tobacco or non-tobacco material, the release is rapid rather than uniform and continuous during the initial heating phase, reducing the uniformity between different puffs.

[0006] Application content

[0007] One embodiment of this application provides an aerosol generating article, comprising:

[0008] Atomizing elements, including aerosol forming agents, are configured to generate aerosols when heated;

[0009] An active functional element is disposed downstream of the atomizing element; the active functional element includes active particles, the active particles include a coating layer and an active matrix wrapped by the coating layer; in use, when the aerosol generated by the atomizing element flows downstream through the active functional element, it carries one or more volatile components released by the active matrix and delivers them downstream.

[0010] In some embodiments, the active matrix comprises plant tissue.

[0011] In some embodiments, the plant tissue includes tobacco material.

[0012] In some embodiments, the active matrix further includes: fragrance and flavoring.

[0013] In some embodiments, the flavorings include at least one of peppermint flavoring, apple flavoring, rose flavoring, peach flavoring, orange flavoring, dried tangerine peel flavoring, cocoa flavoring, peppermint oil, menthol, rose oil, vanilla extract, cocoa butter, cinnamon ester, star anise oil, octyl lactone, white lemon oil, agarwood oil, ethyl maltol, methylcyclopentenolone, 2-acetylpyrazine, 2,3,3-trimethylpyrazine, and cinnamon leaf oil.

[0014] In some embodiments, the active matrix further includes a solid-liquid phase change polymer with a phase change temperature of 40°C to 100°C.

[0015] In some embodiments, it also includes:

[0016] The first cavity is located between the atomizing element and the active functional element.

[0017] In some embodiments, it also includes:

[0018] A second cavity, located downstream of the active functional element, is used to mix one or more volatile components released by the aerosol and the entrained active matrix within the second cavity.

[0019] In some embodiments, the length of the second cavity in the axial direction of the aerosol-generating article may be between 1 and 5 mm.

[0020] In some embodiments, it also includes:

[0021] A first isolation element is located between the atomizing element and the active functional element;

[0022] The second isolation element is located downstream of the active functional element;

[0023] The active particulate matter of the active functional element is confined or retained between the first isolation element and the second isolation element.

[0024] In some embodiments, the first isolation element and the second isolation element are arranged at an axial distance from each other in the aerosol-generating article;

[0025] Alternatively, the first isolation element and the second isolation element are axially combined in the aerosol-generating article.

[0026] In some embodiments, it also includes:

[0027] A tubular matrix that contains and encapsulates the active particles of the first isolation element, the second isolation element, and the active functional element.

[0028] In some embodiments, it also includes:

[0029] First tubular matrix;

[0030] A second tubular matrix is ​​located within the first tubular matrix and has a length less than that of the first tubular matrix; the active particulate matter is contained or confined within the second tubular matrix;

[0031] The first isolation element is located in the first tubular substrate and abuts against the upstream end of the second tubular substrate; the second isolation element is located in the first tubular substrate and abuts against the downstream end of the second tubular substrate.

[0032] In some embodiments, the first isolation element and / or the second isolation element are airflow permeable.

[0033] In some embodiments, the coating layer comprises one or more of sodium carboxymethyl cellulose, hydroxypropyl cellulose, styrene-vinylpyridine copolymer, polyvinylpyrrolidone, soluble starch, chitosan, carrageenan, xanthan gum, sodium alginate, gelatin, guar gum, acrylic resin, hydroxypropyl methylcellulose phthalate, and cellulose acetate phthalate.

[0034] In some embodiments, the aerosol forming agent includes one or more combinations of glycerol, propylene glycol, triacetin, triethyl citrate, isopropyl myristate, methyl stearate, and glyceryl monocaprylate.

[0035] In some embodiments, the length of the active functional element is between 10 and 50 mm.

[0036] In some embodiments, the length of the atomizing element is 5 to 20 mm.

[0037] In some embodiments, the atomizing element does not contain tobacco material and / or flavorings.

[0038] In some embodiments, the atomizing element further includes:

[0039] A carrier for loading the aerosol forming agent.

[0040] In some embodiments, the carrier is formed by spirally winding or repeatedly folding a sheet and then gathering it together.

[0041] In some embodiments, the surface of the sheet is rough;

[0042] And / or, the surface of the sheet is formed with indentations, textures, protrusions or burrs.

[0043] In some embodiments, the sheet has perforations.

[0044] In some embodiments, an axially penetrating air channel is defined within the carrier.

[0045] In some embodiments, the areal density of the sheet is 25–80 g / m². 2 .

[0046] In some embodiments, the thickness of the sheet is 30 μm to 120 μm.

[0047] In some embodiments, the atomizing element further includes:

[0048] A forming layer is used to wrap and confine the carrier from the outside to prevent the carrier formed by winding or folding from unraveling.

[0049] In some embodiments, it also includes:

[0050] An aerosol modifier release component, located downstream of the active functional element, is used to release an aerosol modifier; the aerosol modifier is configured to modify the resulting aerosol by altering the olfactory or gustatory or biometabolic properties of the aerosol.

[0051] Another embodiment of this application also provides an aerosol-generating article, comprising:

[0052] Atomizing elements, including aerosol forming agents, are configured to generate aerosols when heated;

[0053] An active functional element is disposed downstream of the atomizing element; the active functional element includes active particulate matter; during use, when the aerosol generated by the atomizing element flows downstream through the active functional element, it carries one or more volatile components released by the active particulate matter and delivers them downstream.

[0054] A first cavity is located between the atomizing element and the active functional element; and / or a second cavity is located downstream of the active functional element for mixing one or more volatile components released by the aerosol and the entrained active particles within the second cavity.

[0055] Another embodiment of this application also proposes an aerosol generation system, comprising:

[0056] The aerosol-generating products described above; and,

[0057] Heating device, including:

[0058] A chamber for receiving the aerosol-generated product;

[0059] A heater is configured to at least heat the atomizing element of the aerosol-generating article.

[0060] In the use of the above aerosol-generating products, on the one hand, the active matrix of the active particles is gradually released to form a slow release, which is beneficial for maintaining the uniformity of active ingredients in different inhalations; on the other hand, the aerosol forming agent and active functional ingredients are in different components, which can have a larger amount added compared to loading them all into plant tissue, which is beneficial for increasing the amount of smoke and aroma. Attached Figure Description

[0061] One or more embodiments are illustrated by way of example with reference numerals in the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings are denoted as similar elements. Unless otherwise stated, the figures in the drawings are not to be limited by scale.

[0062] Figure 1 is a schematic diagram of an aerosol-generated article provided in an embodiment;

[0063] Figure 2 is a schematic diagram of the active particles of the first isolation element, the second isolation element, and the active functional element in Figure 1 being pre-encapsulated in a tubular matrix.

[0064] Figure 3 is a schematic diagram of the aerosol generation system in Figure 1, in which the aerosol-generated product is received in the heating device to form an aerosol generation system.

[0065] Figure 4 is a schematic diagram of the longitudinal combination of the first isolation element and the second isolation element in an aerosol generating article according to another embodiment;

[0066] Figure 5 is a schematic diagram of the first and second isolation elements in Figure 4 before assembly;

[0067] Figure 6 is a schematic diagram of an aerosol-generated article according to yet another embodiment;

[0068] Figure 7 is a schematic diagram of filling active particles into a tubular matrix during the preparation of aerosol-generated products as shown in Figure 6.

[0069] Figure 8 is a schematic diagram of the tubular matrix in Figure 7 after being filled with active particles;

[0070] Figure 9 is a schematic diagram of an atomizing element according to an embodiment;

[0071] Figure 10 is an exploded view of the atomizing element in Figure 9. Embodiments of the present invention

[0072] To facilitate understanding of this application, a more detailed description of this application will be provided below in conjunction with the accompanying drawings and specific embodiments.

[0073] One embodiment of this application proposes a heated aerosol generating article comprising multiple elements assembled in the form of strips, capable of generating aerosols when heated.

[0074] For example, Figure 1 is a schematic diagram of an aerosol generating article 1000 according to one embodiment. As shown in Figure 1, the aerosol generating article 1000 includes an upstream end 1100 and a downstream end 1200 facing away from each other. As used herein, the terms 'upstream' and 'downstream' are used to describe the relative positions of elements or portions of elements of the aerosol generating article 1000 with respect to the direction in which a user draws air from the aerosol generating article 1000 during its use. Downstream can be a direction closer to the user's drawing direction, and correspondingly upstream is a direction away from the user; and the upstream direction can be the direction in which external air enters the aerosol generating article 1000, and the downstream direction can be the direction in which an airflow containing aerosol exits from the aerosol generating article 1000, such as the direction indicated by arrow R12 in Figure 1. In use, the aerosol generated by heating within the aerosol generating article 1000 passes through the downstream end 1200 and exits from the downstream end 1200 before being delivered to the user. During use, users can perform a suction at the downstream end of 1200 to draw in aerosols.

[0075] In the embodiment shown in Figure 1, for ease of use by ordinary users, the aerosol generating article 1000 has an overall elongated cylindrical structure. Alternatively, in some other variations, the aerosol generating article 1000 may be an elongated elliptical cylinder, a square prism, a polygonal prism, etc.

[0076] In some embodiments, the aerosol generating article 1000 may mimic the appearance of a conventional, lit, and smokeable cigarette. The aerosol generating article 1000 may have an outer diameter between approximately 5 mm and 12 mm (e.g., between approximately 5 mm and 10 mm). The aerosol generating article 1000 has an overall length between approximately 40 mm and 100 mm; in alternative embodiments, the aerosol generating article 1000 has an overall length between approximately 45 mm and 55 mm.

[0077] As shown in Figure 1, the aerosol generating article 1000 includes multiple components arranged from the upstream end 1100 to the downstream end 1200:

[0078] Atomizing element 1130, active functional element 1120, and filter element 1110. These elements are arranged sequentially and constrained by an outer enclosure 1160 to form an aerosol generating article 1000.

[0079] To assemble the aerosol-generating article 1000, the plurality of components described above are aligned and tightly wrapped within an outer wrapping 1160. In the embodiment shown in FIG. 1, the outer wrapping 1160 may be conventional cigarette paper, fibrous material, organic polymer, etc. In some embodiments, the thickness of the outer wrapping 1160 is 0.2 mm to 0.5 mm; more preferably, the thickness of the outer wrapping 1160 is 0.35 mm to 0.45 mm.

[0080] In an embodiment, filter element 1110 is arranged near or defines downstream end 1200 for filtration before aerosol delivery to the user. In the embodiment shown in FIG1, filter element 1110 comprises a conventional cellulose acetate or polypropylene tow filter element with low filtration efficiency.

[0081] In embodiments, atomizing element 1130 is used to describe atomization upon heating to produce an aerosol. The aerosol described herein can be visible or invisible and can comprise vapors (e.g., fine particles of matter in a gaseous state, which are typically liquid or solid at room temperature) as well as droplets of gas and condensed vapor. In embodiments, atomizing element 1130 primarily comprises an aerosol forming agent for producing an aerosol upon heating. In embodiments, the aerosol forming agent is one or more combinations of glycerol, propylene glycol, triacetin, triethyl citrate, isopropyl myristate, methyl stearate, and glyceryl monocaprylate.

[0082] In this embodiment, the atomizing element 1130 is only used to generate aerosol and does not provide nicotine or the like; or in this embodiment, the atomizing element 1130 does not include tobacco materials and / or flavorings or fragrances.

[0083] In some embodiments, the atomizing element 1130 has a length of approximately 5 to 20 mm.

[0084] In some embodiments, the aerosol forming agent of the atomizing element 1130 typically needs to be loaded; further referring to Figures 9 and 10, the atomizing element 1130 includes:

[0085] The carrier 1131 is used to load the aerosol forming agent 1132; the aerosol forming agent 1132 is loaded or bound to the carrier 1131.

[0086] In some embodiments, such as those shown in Figures 9 and 10, the carrier 1131 is a columnar body formed by spirally winding a sheet. Alternatively, in some other variations, the carrier 1131 is a columnar body formed by first embossing the sheet surface using an embossing process, and then repeatedly folding the sheet along the embossing path and gathering it together.

[0087] In some embodiments, the sheet forming the carrier 1131 is a sheet made primarily from one or more of natural fibers and synthetic fibers through papermaking, air-flow forming, melt-blowing, or hydroentangling processes. In some optional embodiments, the areal density of the sheet is 25–80 g / m². 2 The thickness is 30 μm to 120 μm. In one specific embodiment, the sheet forming the carrier 1131 is paper; more specifically, for example, cardboard commonly used in the art. In an embodiment, an aerosol forming agent 1132, such as glycerol or vegetable glycerin, is loaded or bonded to one or both side surfaces of the sheet forming the carrier 1131 by means of dip coating or the like.

[0088] In some embodiments, the sheet surface forming the carrier 1131 is rough, which is advantageous for promoting the loading or bonding of the aerosol forming agent 1132 to the sheet surface. In some specific embodiments, the sheet surface forming the carrier 1131 is roughened by forming indentations or textures through processes such as hydroentangling or embossing. Alternatively, the sheet surface forming the carrier 1131 may be roughened by forming structures such as protrusions or burrs.

[0089] Alternatively, in some other embodiments, a plurality of perforations 1134 are formed on the sheet forming the carrier 1131 by means of needle punching or perforation, thereby giving the sheet forming the carrier 1131 a generally grid-like shape. Alternatively, the perforations 1134 may also pass through the aerosol forming agent 1132 loaded or bonded to the carrier 1131.

[0090] In some embodiments, the carrier 1131 is air-permeable. For example, the carrier 1131, formed by winding or folding a sheet, may have gaps to form an air passage axially through the carrier 1131. For example, as shown in Figures 9 and 10, the carrier 1131 includes at least two or more wound layers spirally wound from a sheet. In embodiments, gaps or spacings are present between adjacent wound layers to define an air passage axially through the atomizing element 1130, making the atomizing element 1130 air-permeable. In embodiments, the draw resistance of the atomizing element 1130 can be adjusted to an acceptable range by controlling or adjusting the size of the gaps between adjacent wound layers. Alternatively, in a carrier 1131 formed by folding a sheet, gaps between adjacent folded layers form an air passage axially through the carrier 1131.

[0091] In some embodiments, as shown in Figures 9 and 10, the atomizing element 1130 further includes:

[0092] The forming layer 1133 may typically include a metal foil, such as aluminum foil; the forming layer 1133 is used to wrap and confine the carrier 1131 and the aerosol forming agent 1132 from the outside to prevent the columnar carrier 1131 formed by winding or folding from unraveling. For example, the forming layer 1133 is formed by winding forming paper containing aluminum.

[0093] Among them, the term "forming paper" is a standard technical term in the cigarette industry; forming paper was proposed by the State Tobacco Monopoly Administration and standardized in the "Tobacco Industry Standard of the People's Republic of China (YC / T208-2006)" and is under the jurisdiction of the National Tobacco Standardization Technical Committee (TC144).

[0094] In embodiments, the active ingredients and / or flavor components in the aerosol output by the aerosol generating article 1000 may be primarily provided by an active functional element 1120 separate from the atomizing element 1130. In some embodiments, the active functional element 1120 is arranged downstream of and spaced from the atomizing element 1130. Additionally, the active functional element 1120 is arranged upstream of and spaced from the filter element 1110.

[0095] In an embodiment, the active functional element 1120 includes active particles. In an embodiment, the active particles of the active functional element 1120 are longitudinally confined, held, or filled between a first insulating element 1121 upstream of it and a second insulating element 1122 downstream of it. In some embodiments, the active particles are filled between the first insulating element 1121 and the second insulating element 1122 to form the active functional element 1120.

[0096] In some embodiments, the length of the active functional element 1120 is between 10 mm and 50 mm.

[0097] In some embodiments, the active particles are spherical, ellipsoidal, or other regular / irregular shaped particles. In some embodiments, the active particles have a particle size of approximately 0.2 mm to 3.0 mm.

[0098] In some embodiments, the active particles are a core-shell structure with a coating layer and an active matrix as the core; the active matrix is ​​encapsulated by the coating layer. In use, the coating layer can prevent the core of the active matrix from absorbing moisture and prevent the particles from sticking together, ensuring the stability of the draw resistance of the active functional element 1120; on the other hand, the coating layer allows the active matrix to be gradually released, forming a sustained release, which is beneficial for maintaining the uniformity of the active ingredient after different draw cycles.

[0099] In some embodiments, the coating layer of the active particles is typically a film made of polymeric materials; in embodiments, the coating layer includes one or more of sodium carboxymethyl cellulose, hydroxypropyl cellulose, styrene-vinylpyridine copolymer, polyvinylpyrrolidone, soluble starch, chitosan, carrageenan, xanthan gum, sodium alginate, gelatin, guar gum, acrylic resin, hydroxypropyl methylcellulose phthalate, and cellulose acetate phthalate. When the aerosol with temperature generated by the atomizing element 1130 flows downstream through the active functional element 1120, the coating layer can be heated by the aerosol and thus volatilize or decompose, so that the active matrix contacts the aerosol and releases the active ingredients.

[0100] In some embodiments, the coating layer has a thickness of 0.001 to 0.1 mm; this is advantageous for promoting the release of the internal active matrix during use.

[0101] In some embodiments, the active matrix includes tobacco material that provides an active ingredient such as nicotine. In this embodiment, the active matrix is ​​used to provide an active ingredient such as nicotine in an aerosol delivered to a user; the active matrix includes or is derived from one or more plant products or components thereof; for example, in some specific embodiments, the active matrix includes leaves, bark, fibrous tissue, stems, roots, petals, fruits, etc. of a plant; for example, in one specific embodiment, the active matrix includes or is derived from one or more plant varieties or components thereof, and the plant variety is tobacco. For example, in one specific embodiment, the active matrix includes a mixture of tobacco and plants such as traditional Chinese medicine. The active matrix may include tobacco or tobacco-containing material; for example, tobacco or tobacco-containing material may include any of the following: tobacco leaves, tobacco vein fragments, flue-cured tobacco leaves, sun-cured tobacco leaves, burley tobacco leaves, aromatic tobacco leaves, tobacco stems, reconstituted tobacco leaves, homogenized tobacco, extruded tobacco, tobacco pulp, cast tobacco, and expanded tobacco.

[0102] Alternatively, in some embodiments, the active matrix may include other plant tissues that provide other active ingredients to replace nicotine. For example, in some embodiments, these other plant tissues that replace tobacco may be derived from common Chinese herbal medicines or herbal crops; Chinese herbal medicines may include one or more of the following: Angelica sinensis, Cassia tora, Taraxacum mongolicum, Apocynum venetum, Ziziphus jujuba, Lycium barbarum, Fritillaria cirrhosa, Panax notoginseng, Sterculia lychnophora, Borneol, Menthol, Saffron, Lonicera japonica, Poria cocos, Pueraria lobata, Dalbergia odorifera, Aristolochia debilis, Perilla frutescens, Bupleurum chinense, Isatis indigotica, Astragalus membranaceus, Prunella vulgaris, Ginseng, Paeonia lactiflora, Gastrodia elata, Schisandra chinensis, etc.; herbal crops may include one or more of the following: tea leaves, lotus leaves, licorice, cloves, chrysanthemum, star anise, mulberry leaves, bay leaves, Perilla frutescens, Amomum villosum, Citrus reticulata peel, Gynostemma pentaphyllum, lavender, rose, jasmine, buckwheat tea, Roselle, Lily, Leonurus japonicus, Nardostachys jatamansi, Abrus precatorius, Saussurea costus, etc.

[0103] In some embodiments, the active matrix includes fragrances and flavorings for enhancing or providing aroma to the aerosol; in some embodiments, the fragrances and flavorings typically include flavoring substances such as peppermint, apple, rose, peach, orange, tangerine peel, and cocoa, or fragrant liquid organic alcohols, organic oils, or organic lipids such as peppermint oil, menthol, rose oil, vanilla extract, cocoa butter, cinnamon ester, star anise oil, octyl lactone, lemon oil, agarwood oil, ethyl maltol, methylcyclopentenolone (MCP), 2-acetylpyrazine, 2,3,3-trimethylpyrazine, and cinnamon leaf oil. In this embodiment, the volatilization temperature or boiling point of the fragrance is typically between 50°C and 200°C, which is close to the temperature at which the aerosol generated by the atomizing element 1130 flows downstream through the active functional element 1120. Therefore, during use, when the aerosol generated by the atomizing element 1130 flows downstream through the active functional element 1120, the fragrance forms volatile aroma components and is carried downstream in the aerosol.

[0104] In this embodiment, the plant tissue and / or flavoring for providing the active ingredient are separately arranged from the atomizing element 1130; wherein the flavoring is included in the active functional element 1120 and is loaded with tobacco material or plant tissue.

[0105] In some embodiments, the active matrix comprises: 65-90 wt% tobacco material or plant tissue and 5-25 wt% flavorings.

[0106] In some alternative embodiments, the active matrix further includes a solid-liquid phase change polymer. In some embodiments, the solid-liquid phase change polymer is polyethylene glycol (PEG), which may be one or more of PEG800, PEG1000, PEG1500, PEG2000, PEG4000, PEG6000, and PEG8000. In embodiments, the phase change temperature of polyethylene glycol (PEG) is 40°C to 100°C; when the aerosol generated by the atomizing element 1130 flows downstream through the active particles, the solid-liquid phase change polymer can be heated by the aerosol and thus change from a solid state at room temperature to a liquid state. One beneficial effect is that the solid-liquid phase change polymer absorbs heat from the aerosol during the solid-liquid phase change process, significantly increasing the aerosol temperature delivered downstream and preventing burns from the aerosol.

[0107] In the embodiments, the solid-liquid phase change polymer in the active matrix is ​​not essential.

[0108] In this embodiment, the filter element 1110 is further provided with:

[0109] An aerosol modifier release component 1150 includes an aerosol modifier. In some embodiments, the aerosol modifier release component 1150 is a capsule or a bursting bead; particularly, for example, a flavored capsule. In some embodiments, the aerosol modifier release component 1150 configured as a capsule has a diameter of 2.0 mm to 5.0 mm.

[0110] In some embodiments, the aerosol modifier is configured to modify the resulting aerosol, for example, by altering the taste, flavor, acidity, or olfactory or gustatory or biometabolic properties of the aerosol. The aerosol modifier may be disposed in an aerosol modifier release component 1150, such as a capsule, which releases the aerosol modifier as the aerosol flows through it.

[0111] In some embodiments, the aerosol modifier may include one or more of flavoring agents, coloring agents, and adsorbents. In some embodiments, certain characteristics of the aerosol include properties different from those of a flavored aerosol, such as sweetness or pH. For example, in some embodiments, a sweet flavoring agent imparts an increased sweetness to the aerosol delivered downstream to the user during use. As another example, in some embodiments, a pH-sensitive flavoring agent, such as dried lemon or mint, may be used to lower or raise the pH to alter the pH characteristics of the aerosol. As yet another example, in some embodiments, an adsorbent with partial component adsorption capabilities, such as a carbon adsorbent that adsorbs water vapor, is used to adsorb some of the water vapor in the aerosol delivered to the user, thereby preventing the aerosol from burning the mouth.

[0112] As shown in Figures 1 to 3, the aerosol generating article 1000 also includes:

[0113] A tubular substrate 1129 is used to encapsulate and confine the first isolating element 1121, the second isolating element 1122, and the active functional element 1120. In preparation, the active particles of the first isolating element 1121, the second isolating element 1122, and the active functional element 1120 are encapsulated and confined by the tubular substrate 1129 and then assembled into a single unit, which is then encapsulated together with other components of the aerosol generating article 1000 by an external encapsulation 1160. This is advantageous for the preparation of the aerosol generating article 1000. In some embodiments, the tubular substrate 1129 may be made of paper, metal, ceramic, or an organic polymer plastic capable of withstanding temperatures of at least 150°C.

[0114] As shown in Figures 1 to 3, the substrate 1129 is located between the atomizing element 1130 and the filter element 1110. Furthermore, the upstream end of the substrate 1129 abuts against the atomizing element 1130, and the downstream end abuts against the filter element 1110. Thus, the substrate 1129 is longitudinally held between the atomizing element 1130 and the filter element 1110.

[0115] As shown in Figures 1 and 2, the first isolation element 1121 and / or the second isolation element 1122 are substantially annular. The first isolation element 1121 and the second isolation element 1122 are spaced apart within the aerosol-generating article 1000 and / or the substrate 1129, such that the active particles of the active functional element 1120 are at least partially encapsulated by the substrate 1129. In some embodiments, the first isolation element 1121 and / or the second isolation element 1122 are made of paper, metal, ceramic, or an organic polymer plastic capable of withstanding temperatures of at least 150°C. The annular sidewalls of the first isolation element 1121 and / or the second isolation element 1122 are bonded to and thus encapsulated by the substrate 1129. A first baffle 1125, arranged perpendicular to the axial direction, is disposed within the first isolation element 1121 to prevent upstream leakage of the active particles of the active functional element 1120. The second isolation element 1122 has a second baffle 1126 arranged perpendicular to the axial direction to prevent the active particles of the active functional element 1120 from leaking downstream.

[0116] In one embodiment, a plurality of first air holes 1123 are arranged on the first baffle 1125, thereby allowing airflow to pass through the first baffle 1125. Similarly, a plurality of second air holes 1124 are arranged on the second baffle 1126, thereby allowing airflow to pass through the second baffle 1126. In some embodiments, the diameters of the first air holes 1123 and / or the second air holes 1124 are in the range of 0.01 mm to 1.5 mm, thereby allowing air to flow smoothly. During suction, the aerosol generated by the heating of the upstream atomizing element 1130 enters the active functional element 1120 through the first air holes 1123, and then, carrying or entraining one or more components generated by the active particulate matter, is output downstream through the second air holes 1124.

[0117] As shown in Figures 1 and 2, the aerosol generating article 1000 also includes:

[0118] A first cavity 1141 is formed or defined between the first insulating element 1121 and the atomizing element 1130; more specifically, the first cavity 1141 is located between the first baffle 1125 and the atomizing element 1130; or more specifically, the first cavity 1141 is substantially located within the first insulating element 1121. During inhalation, the aerosol generated by the heating of the atomizing element 1130 passes through the first cavity 1141 and enters the active functional element 1120.

[0119] In the suction process, the first cavity 1141 can provide storage and buffering for the aerosol in the downstream transfer path; in another aspect, the first cavity 1141 can help reduce the suction resistance of the aerosol-generated product 1000 during suction.

[0120] As shown in Figures 1 and 2, the aerosol generating article 1000 also includes:

[0121] The second cavity 1142 is formed or defined between the second isolation element 1122 and the filter element 1110; more specifically, the second cavity 1142 is located between the second baffle 1126 and the filter element 1110; or more specifically, the second cavity 1142 is substantially located within the second isolation element 1122. During suction, the aerosol carrying or entraining one or more components generated by the active particulate matter passes through the second cavity 1142 and enters the filter element 1110; the second cavity 1142 can be used to promote further mixing of the aerosol with the components generated by the active particulate matter, resulting in a more uniform taste of the aerosol output downstream. Similarly, the second cavity 1142 can further help reduce the suction resistance of the aerosol-generating article 1000 during suction.

[0122] In some embodiments, the lengths of the first cavity 1141 and the second cavity 1142 in the axial direction of the aerosol generating article 1000 may be approximately between 1 and 5 mm.

[0123] As shown in Figures 1 to 3, the first cavity 1141 and the second cavity 1142 are located within the tubular substrate 1129.

[0124] As shown in Figure 3, in use, the aerosol generating article 1000 is received by a heating device to form an aerosol generating system, and the aerosol generating article 1000 is heated by the heating device to generate aerosol. In an embodiment, the heating device includes:

[0125] The chamber has an opening 40; in use, the aerosol-generating article 1000 can be removably received in the chamber through the opening 40.

[0126] A heater 30, which extends at least partially within the chamber, is inserted into the aerosol generating article 1000 when it is received in the chamber to heat it, thereby causing the aerosol generating article 1000 to release a variety of volatile compounds, which are formed solely by heat treatment.

[0127] Cell 10 is used for power supply;

[0128] Circuit 20 is used to guide current between cell 10 and heater 30.

[0129] In the embodiment shown in Figure 3, the heater 30 is generally shaped like a pin, needle, rod, column, sheet, or plate. When the aerosol generating article 1000 is received in the chamber, the heater 30 extends from the upstream end 1100 of the aerosol generating article 1000 into the atomizing element 1130 to heat it and generate an aerosol. In some embodiments, the heater 30 may have a length of approximately 10 to 18 mm and an outer diameter of approximately 2 to 4 mm.

[0130] In an embodiment, when the aerosol-generating article 1000 is received in the heating device, the heater 30 extends into the atomizing element 1130, avoiding the first cavity 1141 and / or the active functional element 1120. In use, the aerosol generated by the heating of the atomizing element 1130 flows downstream through the active functional element 1120, carrying at least one volatile component of the active matrix 1122, before being output downstream.

[0131] Alternatively, in some other embodiments, when the aerosol generating article 1000 is received in a heating device, the heating device can simultaneously heat the atomizing element 1130 and the active functional element 1120. This is advantageous for promoting a faster release of volatile components from the active functional element 1120.

[0132] In some embodiments, the heater 30 may also be configured to at least partially surround or define a chamber arrangement; for example, the heater 30 may be configured as a tubular shape that at least partially surrounds the chamber. When the aerosol generating article 1000 is received in the chamber, the heater 30 at least partially surrounds or encloses the aerosol generating article 1000 and heats it from the outer periphery of the aerosol generating article 1000. Furthermore, when the aerosol generating article 1000 is received within a heating device, it is at least partially contained and held within the heater 30, which then surrounds and heats the aerosol generating article 1000 from the outside, thereby causing the aerosol generating article 1000 to release a variety of volatile compounds, which are formed solely by heat treatment. In some embodiments, the tubular heater 30 may have an inner diameter of approximately 5.8 mm to 10 mm.

[0133] Alternatively, Figures 4 and 5 show a schematic diagram of a first isolation element 1121a and a second isolation element 1122a axially combined in another embodiment; in this embodiment, the annular sidewalls of the first isolation element 1121a and the annular sidewalls of the second isolation element 1122a are longitudinally combined, thereby surrounding and confining the active particulate matter of the active functional element 1120a in the circumferential direction, which is more convenient for the industrial-scale mass production of aerosol-generated articles 1000.

[0134] Specifically, in the embodiment, the annular sidewall of the first isolation element 1121a has a section 1127a with a reduced outer diameter, and the annular sidewall of the second isolation element 1122a has a section 1128a with an increased inner diameter. Thus, during assembly, as shown by arrow P11 in FIG5, the first isolation element 1121a and the second isolation element 1122a can be axially assembled and joined by inserting the reduced outer diameter section 1127a of the first isolation element 1121a into the increased inner diameter section 1128a of the second isolation element 1122a.

[0135] Alternatively, Figures 6 to 8 show schematic diagrams of another embodiment of aerosol-generated article 1000b, which is easier to prepare. In this embodiment, the preparation process, as shown by arrow P21 in Figure 7, involves first inserting the first insulating element 1125b into the first tubular substrate 1121b from one end and mounting it against the second tubular substrate 1122b; then, as shown by arrow P22 in Figure 7, filling the second tubular substrate 1122b with the active particles of the active functional element 1120b from the other end; and finally, inserting the second insulating element 1126b into the first tubular substrate 1121b from the other end and mounting it against the second tubular substrate 1122b, thus obtaining the pre-assembled state shown in Figure 8. Then, the first isolation element 1125b, the second isolation element 1126b, the active functional element 1120b, the first tubular substrate 1121b, and the second tubular substrate 1122b, which are in the pre-assembled state shown in Figure 8, are encapsulated together with the atomizing element 1130b and the filter element 1100b by the outer encapsulation component 1160b to prepare the aerosol generating product 1000b. The first tubular substrate 1121b and the second tubular substrate 1122b can be made of paper, metal, ceramic, or organic polymer plastic that can withstand temperatures of at least 150°C.

[0136] In the embodiments shown in Figures 6 to 8, the second tubular substrate 1122b is located within the first tubular substrate 1121b, and the length of the second tubular substrate 1122b is less than the length of the first tubular substrate 1121b. In some embodiments, the first tubular substrate 1121b and the second tubular substrate 1122b can be formed simultaneously by winding a stacked first sheet substrate and a second sheet substrate.

[0137] In some embodiments, the first isolation element 1125b and / or the second isolation element 1126b are substantially sheet-like. The first isolation element 1125b and / or the second isolation element 1126b are permeable to airflow. Specifically, the first isolation element 1125b is provided with a plurality of first vents 1123b; and the second isolation element 1126b is provided with a plurality of second vents 1124b.

[0138] In an embodiment, a first cavity 1141b is defined between the upstream end of the first isolation element 1125b and the first tubular substrate 1121b; and a second cavity 1142b is defined between the second isolation element 1126b and the downstream end of the first tubular substrate 1121b.

[0139] It should be noted that the preferred embodiments of this application are given in the specification and accompanying drawings, but are not limited to the embodiments described in this specification. Furthermore, those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. An aerosol-generating product, characterized in that, include: Atomizing elements, including aerosol forming agents, are configured to generate aerosols when heated; An active functional element is disposed downstream of the atomizing element; the active functional element includes active particles, the active particles include a coating layer and an active matrix wrapped by the coating layer; in use, when the aerosol generated by the atomizing element flows downstream through the active functional element, it carries one or more volatile components released by the active matrix and delivers them downstream.

2. The aerosol-generating product as described in claim 1, characterized in that, The active matrix includes plant tissue.

3. The aerosol-generating product as described in claim 2, characterized in that, The plant tissues include tobacco material.

4. The aerosol-generating article according to any one of claims 1 to 3, characterized in that, The active matrix also includes: fragrances and flavorings.

5. The aerosol-generating product as described in claim 4, characterized in that, The flavorings and fragrances include at least one of the following: peppermint flavoring, apple flavoring, rose flavoring, peach flavoring, orange flavoring, dried tangerine peel flavoring, cocoa flavoring, peppermint oil, menthol, rose oil, vanilla extract, cocoa butter, cinnamon ester, star anise oil, octyl lactone, white lemon oil, agarwood oil, ethyl maltol, methylcyclopentenolone, 2-acetylpyrazine, 2,3,3-trimethylpyrazine, and cinnamon leaf oil.

6. The aerosol-generating article according to any one of claims 1 to 3, characterized in that, The active matrix further includes a solid-liquid phase change polymer with a phase change temperature of 40℃ to 100℃.

7. The aerosol-generating article according to any one of claims 1 to 3, characterized in that, Also includes: The first cavity is located between the atomizing element and the active functional element.

8. The aerosol-generating article according to any one of claims 1 to 3, characterized in that, Also includes: A second cavity, located downstream of the active functional element, is used to mix one or more volatile components released by the aerosol and the entrained active matrix within the second cavity.

9. The aerosol-generating article as described in claim 8, characterized in that, The length of the second cavity in the axial direction of the aerosol-generated product can be between 1 and 5 mm.

10. The aerosol-generating article according to any one of claims 1 to 3, characterized in that, Also includes: A first isolation element is located between the atomizing element and the active functional element; The second isolation element is located downstream of the active functional element; The active particulate matter of the active functional element is confined or retained between the first isolation element and the second isolation element.

11. The aerosol-generating article as described in claim 10, characterized in that, The first isolation element and the second isolation element are arranged at intervals along the axial direction of the aerosol-generating article; Alternatively, the first isolation element and the second isolation element are axially combined in the aerosol-generating article.

12. The aerosol-generating article as described in claim 10, characterized in that, Also includes: A tubular matrix that contains and encapsulates the active particles of the first isolation element, the second isolation element, and the active functional element.

13. The aerosol-generating article as described in claim 10, characterized in that, Also includes: First tubular matrix; A second tubular matrix is ​​located within the first tubular matrix and has a length less than that of the first tubular matrix; the active particulate matter is contained or confined within the second tubular matrix; The first isolation element is located in the first tubular substrate and abuts against the upstream end of the second tubular substrate; the second isolation element is located in the first tubular substrate and abuts against the downstream end of the second tubular substrate.

14. The aerosol-generating article as described in claim 10, characterized in that, The first isolation element and / or the second isolation element are permeable to airflow.

15. The aerosol-generating article according to any one of claims 1 to 3, characterized in that, The coating layer comprises one or more of the following: sodium carboxymethyl cellulose, hydroxypropyl cellulose, styrene-vinylpyridine copolymer, polyvinylpyrrolidone, soluble starch, chitosan, carrageenan, xanthan gum, sodium alginate, gelatin, guar gum, acrylic resin, hydroxypropyl methylcellulose phthalate, and cellulose acetate phthalate.

16. The aerosol-generating article according to any one of claims 1 to 3, characterized in that, The aerosol forming agent includes one or more combinations of glycerol, propylene glycol, triacetin, triethyl citrate, isopropyl myristate, methyl stearate, and glyceryl monocaprylate.

17. The aerosol-generating article according to any one of claims 1 to 3, characterized in that, The length of the active functional element is between 10 and 50 mm.

18. The aerosol-generating article according to any one of claims 1 to 3, characterized in that, The length of the atomizing element is 5–20 mm.

19. The aerosol-generating article according to any one of claims 1 to 3, characterized in that, The atomizing element contains no tobacco material and / or flavorings.

20. The aerosol-generating article according to any one of claims 1 to 3, characterized in that, The atomizing element also includes: A carrier for loading the aerosol forming agent.

21. The aerosol-generating article as described in claim 20, characterized in that, The carrier is formed by spirally winding or repeatedly folding a sheet and then gathering it together.

22. The aerosol-generating article as described in claim 21, characterized in that, The surface of the sheet is rough; And / or, the surface of the sheet is formed with indentations, textures, protrusions or burrs.

23. The aerosol-generating article as described in claim 21, characterized in that, The sheet has perforations.

24. The aerosol-generating article as described in claim 21, characterized in that, The carrier has an axially extending air channel defined within it.

25. The aerosol-generating article as described in claim 21, characterized in that, The areal density of the sheet is 25–80 g / m³. 2 .

26. The aerosol-generating article as described in claim 21, characterized in that, The thickness of the sheet is 30μm to 120μm.

27. The aerosol-generating article as described in claim 20, characterized in that, The atomizing element also includes: A forming layer is used to wrap and confine the carrier from the outside to prevent the carrier formed by winding or folding from unraveling.

28. The aerosol-generating article according to any one of claims 1 to 3, characterized in that, Also includes: An aerosol modifier release component, located downstream of the active functional element, is used to release the aerosol modifier; The aerosol modifier is configured to modify the resulting aerosol by altering its olfactory, gustatory, or biometabolic properties.

29. An aerosol-generating product, characterized in that, include: Atomizing elements, including aerosol forming agents, are configured to generate aerosols when heated; An active functional element is disposed downstream of the atomizing element; the active functional element includes active particulate matter; during use, when the aerosol generated by the atomizing element flows downstream through the active functional element, it carries one or more volatile components released by the active particulate matter and delivers them downstream. A first cavity is located between the atomizing element and the active functional element; and / or a second cavity is located downstream of the active functional element for mixing one or more volatile components released by the aerosol and the entrained active particles within the second cavity.

30. An aerosol generation system, characterized in that, include: Aerosol-generating articles according to any one of claims 1 to 29; as well as, Heating device, including: A chamber for receiving the aerosol-generated product; A heater is configured to at least heat the atomizing element of the aerosol-generating article.

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