Aerosol generating product and aerosol generating system

Abstract

The utility model provides an aerosol generating product and an aerosol generating system. Wherein the aerosol-generating article comprises: an atomizing element comprising an aerosol-forming agent configured to generate an aerosol when heated; the active functional element is arranged at the downstream of the atomizing element; the active functional element comprises an active particulate matter, and the active particulate matter comprises a coating layer and an active matrix wrapped by the coating layer; in use, an aerosol generated by the atomizing element flows downstream through the active functional element, entraining one or more volatile components released by the active matrix and then being delivered downstream. When the aerosol generating product is used, on one hand, the active matrix of the active particulate matters is gradually released to form slow release, which is beneficial for keeping the uniformity of active ingredients of different suction; and on the other hand, the aerosol forming agent and the active functional components are arranged in different elements, so that the additive amount is larger than that of the mode that the aerosol forming agent and the active functional components are completely loaded on the plant tissues, and the smoke amount and the aroma amount are increased.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of heat-not-burn aerosol generation, and in particular to an aerosol-generating article and an aerosol-generating system. BACKGROUND

[0002] Tobacco products, such as cigarettes, cigars, and the like, burn tobacco during use to produce tobacco smoke. Attempts have been made to provide alternatives to these burning tobacco products by creating products that release compounds without burning.

[0003] Examples of such products are heat-not-burn devices that release compounds by heating, rather than burning, a material. For example, the material can be tobacco or other non-tobacco products, which can or can not contain nicotine. Known tobacco or other non-tobacco products use aerosol-forming agents such as glycerol, flavourants, and binders, etc. to generate aerosol and active ingredient nicotine, as well as volatile flavouring components, simultaneously when the tobacco or non-tobacco material is heated in use, to alter or increase the flavour of the aerosol. However, due to the limited loading capacity of the tobacco or non-tobacco material, the amount of smoke and aroma of the aerosol-generating article is limited when the aerosol-forming agents such as glycerol, flavourants, and binders, etc. are loaded in the tobacco or non-tobacco material. Furthermore, when all the aerosol-forming agents and flavourants, etc. are loaded in the tobacco or non-tobacco material, they are released rapidly and non-uniformly in the initial stage of heating, which reduces the uniformity between different puffs. SUMMARY

[0004] One embodiment of the present application provides an aerosol-generating article, comprising:

[0005] An atomising element comprising an aerosol-forming agent configured to generate an aerosol when heated;

[0006] An active functional element arranged downstream of the atomising element; the active functional element comprising active particulate matter, the active particulate matter comprising a coating layer and an active substrate encapsulated by the coating layer; in use, the aerosol generated by the atomising element flows downstream through the active functional element, entraining one or more volatile components released by the active substrate for downstream delivery.

[0007] In some embodiments, the active substrate comprises plant tissue.

[0008] In some embodiments, the plant tissue comprises tobacco material.

[0009] In some embodiments, the active substrate further comprises a flavourant.

[0010] In some embodiments, the flavorant includes at least one of gamma octalactone, ethyl maltol, methyl cyclopentenolone, 2-acetylpyrazine, 2,3,3-trimethylpyrazine.

[0011] In some embodiments, the active substrate further includes a solid-liquid phase change polymer having a phase change temperature of 40°C to 100°C.

[0012] In some embodiments, further comprising:

[0013] a first cavity located between the atomization element and the active functional element.

[0014] In some embodiments, further comprising:

[0015] a second cavity located downstream of the active functional element for mixing of aerosol and entrained one or more volatile components of the active substrate released in the second cavity.

[0016] In some embodiments, the second cavity has a length in an axial direction of the aerosol generating article of 1 to 5 mm.

[0017] In some embodiments, further comprising:

[0018] a first partition element located between the atomization element and the active functional element;

[0019] a second partition element located downstream of the active functional element;

[0020] active particulate matter of the active functional element is confined or retained between the first partition element and the second partition element.

[0021] In some embodiments, the first partition element and the second partition element are spaced apart in an axial direction of the aerosol generating article.

[0022] Alternatively, the first partition element and the second partition element are combined in an axial direction of the aerosol generating article.

[0023] In some embodiments, further comprising:

[0024] a tubular substrate containing and enclosing the active particulate matter of the first partition element, the second partition element, and the active functional element.

[0025] In some embodiments, further comprising:

[0026] a first tubular substrate;

[0027] a second tubular base located within the first tubular base and having a length less than the first tubular base; the active particulate being contained or confined within the second tubular base;

[0028] the first isolating element being located at the first tubular base and abutting against an upstream end of the second tubular base; the second isolating element being located at the first tubular base and abutting against a downstream end of the second tubular base.

[0029] In some embodiments, the first isolating element and / or the second isolating element is permeable to airflow.

[0030] In some embodiments, the coating layer comprises one or more of sodium carboxymethylcellulose, hydroxypropyl cellulose, styrene-ethylene vinyl copolymer, polyvinyl pyrrolidone, soluble starch, chitosan, carrageenan, xanthan gum, sodium alginate, gelatin, guar gum, acrylic resin, hypromellose phthalate, cellulose acetate phthalate.

[0031] In some embodiments, the aerosol forming agent comprises one or more of glycerol, propylene glycol, triacetin, triethyl citrate, isopropyl myristate, methyl stearate, glycerol monocaprylate.

[0032] In some embodiments, the active functional element has a length of 10-50mm.

[0033] In some embodiments, the atomizing element has a length of 5-20mm.

[0034] In some embodiments, the atomizing element is free of tobacco material and / or flavoring.

[0035] In some embodiments, the atomizing element further comprises:

[0036] a carrier for loading the aerosol forming agent.

[0037] In some embodiments, the carrier is formed by spirally winding or reciprocally folding a sheet material.

[0038] In some embodiments, the surface of the sheet material is roughened;

[0039] and / or, the surface of the sheet material is formed with indentations or grooves or protrusions or burrs.

[0040] In some embodiments, the sheet material has perforations.

[0041] In some embodiments, the carrier has an air passage defined therein and extending axially.

[0042] In some embodiments, the sheet material has an areal density of 25-80g / m2 .

[0043] In some embodiments, the sheet has a thickness of 30 pm to 120 pm.

[0044] In some embodiments, the atomisation element further comprises:

[0045] a shaping layer for wrapping and confining the carrier from the outside to prevent the wrapped or folded carrier from unwinding.

[0046] In some embodiments, further comprising:

[0047] an aerosol modifier release component downstream of the active functional element for releasing an aerosol modifier; the aerosol modifier being configured to modify the generated aerosol by changing an olfactory or gustatory or biological metabolic property of the aerosol.

[0048] Yet another embodiment of the present application also proposes an aerosol-generating article comprising:

[0049] an atomisation element comprising an aerosol-forming agent configured to generate an aerosol when heated;

[0050] an active functional element arranged downstream of the atomisation element; the active functional element comprising active particulate matter; in use, the aerosol generated by the atomisation element downstream of the active functional element entrains one or more volatile components released by the active particulate matter for downstream delivery;

[0051] a first cavity between the atomisation element and the active functional element; and / or, a second cavity downstream of the active functional element for mixing of the aerosol and the one or more volatile components released by the active particulate matter within the second cavity.

[0052] Yet another embodiment of the present application also proposes an aerosol-generating system comprising:

[0053] the aerosol-generating article as described above; and,

[0054] a heating device comprising:

[0055] a chamber for receiving the aerosol-generating article;

[0056] a heater configured to heat at least the atomisation element of the aerosol-generating article.

[0057] The above aerosol generating article in use on one hand the active matrix of active particulate matter is gradually released to form a slow release, which is advantageous for maintaining the uniformity of active ingredients in different puffs; on the other hand, the aerosol forming agent and active functional ingredients are in different elements, which can have a greater additive amount compared to the way of loading them all on plant tissues, which is advantageous for improving the amount of smoke and aroma. BRIEF DESCRIPTION OF DRAWINGS

[0058] One or more embodiments are illustrated by way of example in the figures that form a part of this patent document, these example are not to be considered as limiting the embodiments, elements having the same reference numerals in the figures denote like elements unless otherwise specifically indicated, the figures in the drawings are not to scale.

[0059] Figure 1 is a schematic view of an aerosol generating article according to an embodiment;

[0060] Figure 2 is Figure 1 is a schematic view of the active particulate matter of the first isolation element, the second isolation element and the active functional element being pre-wrapped in the tubular substrate in the aerosol generating article;

[0061] Figure 3 is Figure 1 is a schematic view of the aerosol generating article of

[0062] Figure 4 is a schematic view of the aerosol generating article of another embodiment in which the first isolation element and the second isolation element are longitudinally combined;

[0063] Figure 5 is Figure 4 is a schematic view of the aerosol generating article of

[0064] Figure 6 is a schematic view of the aerosol generating article of another embodiment;

[0065] Figure 7 is Figure 6 is a schematic view of the aerosol generating article of

[0066] Figure 8 is Figure 7 is a schematic view of the aerosol generating article of

[0067] Figure 9 is a schematic view of the aerosol generating article of another embodiment;

[0068] Figure 10 is Figure 9 is a schematic view of the aerosol generating article of DETAILED DESCRIPTION

[0069] For the purposes of the present application, the present application will be described in more detail, below, with reference to the attached drawings and specific embodiments.

[0070] One embodiment of the present application proposes a heated aerosol-generating article comprising a plurality of elements assembled in the form of a rod, capable of generating an aerosol when heated.

[0071] For example Figure 1 is a schematic illustration of an aerosol-generating article 1000 of one embodiment, according to Figure 1 As shown, the aerosol-generating article 1000 comprises an upstream end 1100 and a downstream end 1200, opposite one another; 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 on the aerosol-generating article 1000 during use thereof. Downstream can be the direction towards which a user draws, and correspondingly, upstream is the 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 aerosol-containing air flow exits the aerosol-generating article 1000, for example Figure 1 indicated by arrow R12. In use, aerosol generated within the aerosol-generating article 1000 passes through the downstream end 1200 and is delivered to a user after exiting the aerosol-generating article 1000 from the downstream end 1200. In use, a user can draw on the downstream end 1200 in order to inhale the aerosol.

[0072] In the embodiment shown in Figure 1 In the embodiment shown in

[0073] In some embodiments, the aerosol-generating article 1000 can mimic the appearance of a conventional, lightable, smokeable cigarette. The aerosol-generating article 1000 can have an outer diameter of between approximately 5 millimetres and 12 millimetres, for example between approximately 5 millimetres and 10 millimetres. The aerosol-generating article 1000 can have a total length of between approximately 40 millimetres and 100 millimetres, and in alternative embodiments, the aerosol-generating article 1000 can have a total length of approximately 45 millimetres to 55 millimetres.

[0074] As shown in Figure 1 As shown in

[0075] atomizing element 1130, active functional element 1120, and filter element 1110. These elements are sequentially arranged and confined by an outer wrapper 1160 to form the aerosol generating article 1000.

[0076] To assemble the aerosol generating article 1000, the above-described elements are aligned and tightly wrapped within the outer wrapper 1160. In Figure 1 In the illustrated embodiment, the outer wrapper 1160 can be conventional cigarette paper, fibrous material, organic polymer, etc. In some embodiments, the outer wrapper 1160 has a thickness of 0.2 mm to 0.5 mm; more preferably, the outer wrapper 1160 has a thickness of 0.35 mm to 0.45 mm.

[0077] In embodiments, the filter element 1110 is arranged proximate to or defining the downstream end 1200 for filtering before the aerosol is delivered to the user. In Figure 1 In the illustrated embodiment, the filter element 1110 includes a low filtration efficiency conventional cellulose acetate or polypropylene tow filter plug.

[0078] In embodiments, the atomizing element 1130 is used to describe an element capable of being atomized to generate an aerosol, i.e., an air mist, when heated. The aerosol described herein can be visible or invisible, and can include vapor (e.g., fine particles of a substance in a gaseous state, which are typically liquids or solids at room temperature), as well as gas and condensation of vapor droplets. In embodiments, the atomizing element 1130 primarily includes an aerosol forming agent for generating an aerosol, i.e., an air mist, when heated. In embodiments, the aerosol forming agent includes one or more of, for example, glycerin, propylene glycol, triacetin, triethyl citrate, isopropyl myristate, methyl stearate, glycerol monocaprylate.

[0079] In this embodiment, the atomizing element 1130 is used only to generate an aerosol, i.e., an air mist, without providing nicotine, etc.; or in this embodiment, the atomizing element 1130 does not include tobacco material and / or flavoring, etc.

[0080] In some embodiments, the atomizing element 1130 has a length of about 5 to 20 mm.

[0081] In some embodiments, the aerosol forming agent of the atomizing element 1130 generally needs to be loaded; see further Figure 9 to Figure 10 As shown, the atomizing element 1130 includes:

[0082] a carrier 1131 for loading the aerosol forming agent 1132; the aerosol forming agent 1132 is loaded or combined on the carrier 1131.

[0083] In some embodiments, for example Figure 9 andFigure 10 As shown, the carrier 1131 is a cylindrical body formed by spirally winding the sheet. Alternatively in yet other embodiments, the carrier 1131 is a cylindrical body formed by first treating the sheet with an embossing process to form embossing on the surface of the sheet, and then folding the sheet along the embossing path and gathering the sheet together.

[0084] In some embodiments, the sheet forming the carrier 1131 is a sheet prepared by a papermaking process, an air-laid process, a melt-blowing process, a hydro-entangling process, etc. using one or more of natural fibers, synthetic fibers as the main raw material. In some alternative embodiments, the areal density of the sheet is 25-80 g / m 2 ; and the thickness is 30-120 μm. In a specific embodiment, the sheet forming the carrier 1131 is paper; more specifically, for example, cardboard commonly used in the art. In embodiments, the aerosol-forming agent 1132, for example, glycerol or vegetable glycerin, is loaded or bonded to one or both side surfaces of the sheet forming the carrier 1131 by dip coating or the like.

[0085] In some embodiments, the surface of the sheet forming the carrier 1131 is rough, which is advantageous for facilitating loading or bonding of the aerosol-forming agent 1132 to the surface of the sheet. In some specific embodiments, the surface of the sheet forming the carrier 1131 is roughened by forming indentations or lines on the surface of the sheet by a hydro-entangling process or an embossing process or the like. Alternatively, the surface of the sheet forming the carrier 1131 is roughened by forming protrusions or burrs or the like on the surface of the sheet.

[0086] Alternatively in yet other embodiments, the sheet forming the carrier 1131 is formed with a plurality of perforations 1134 by needling or punching or the like; so that the sheet forming the carrier 1131 has a substantially grid-like shape. Alternatively, the perforations 1134 also perforate the aerosol-forming agent 1132 loaded or bonded to the carrier 1131.

[0087] In some embodiments, the carrier 1131 is air-permeable. For example, the carrier 1131 wound or folded from the sheet can have slits therein to form air passages axially through the carrier 1131. For example Figure 9 and Figure 10 As shown, the carrier 1131 includes at least two or more wound layers spirally wound from the sheet. In embodiments, the adjacent wound layers have gaps or spaces therebetween, thereby defining air passages axially through the atomizing element 1130, so that the atomizing element 1130 is air-permeable. In embodiments, the size of the air resistance of the atomizing element 1130 can be adjusted to an acceptable range by controlling or adjusting the size of the gaps between the adjacent wound layers. Alternatively in the carrier 1131 folded from the sheet, slits between the adjacent folded layers form air passages axially through the carrier 1131.

[0088] In some embodiments, referring to Figure 9 to Figure 10 The atomizing element 1130 further comprises, as shown:

[0089] A shaping layer 1133, which can typically comprise a metal foil, such as a metal aluminum foil; the shaping layer 1133 is used to wrap and limit the carrier 1131 and the aerosol forming agent 1132 from the outside, so as to prevent the cylindrical carrier 1131 formed by winding or folding from spreading apart. For example, the shaping layer 1133 is formed by winding a shaping paper containing metal aluminum.

[0090] The term "shaping paper" is a standard technical term in the field of cigarettes.

[0091] In embodiments, the active ingredient and / or flavoring ingredient in the aerosol output by the aerosol generating article 1000 can be mainly provided by the active functional element 1120 separate from the atomizing element 1130. In some embodiments, the active functional element 1120 is arranged downstream of the atomizing element 1130 and spaced apart from the atomizing element 1130. In addition, the active functional element 1120 is arranged upstream of the filter element 1110 and spaced apart from the filter element 1110.

[0092] In embodiments, the active functional element 1120 comprises active particulates. In embodiments, the active particulates of the active functional element 1120 are longitudinally limited or held or filled between a first isolation element 1121 upstream thereof and a second isolation element 1122 downstream thereof. In some embodiments, the active particulates are filled between the first isolation element 1121 and the second isolation element 1122, thereby forming the active functional element 1120.

[0093] In some embodiments, the length of the active functional element 1120 is between 10 mm and 50 mm.

[0094] In some embodiments, the active particulates are spherical, ellipsoidal or other regular / irregular shaped particles. In some embodiments, the active particulates have a particle size of about 0.2 mm to 3.0 mm.

[0095] In some embodiments, the active particulates are core-shell structures having a coating layer and an active matrix as a core; the active matrix is wrapped by the coating layer. In use, on the one hand, the coating layer can prevent the core of the active matrix from absorbing moisture and prevent mutual adhesion between the particles, ensuring the stability of the resistance of the active functional element 1120; on the other hand, the wrapping by the coating layer can make the active matrix gradually release to form a sustained release, which is beneficial to maintaining the uniformity of the active ingredient at different puffing times.

[0096] In some embodiments, the coating layer of the active particulate is typically a film prepared from a polymeric material; in embodiments, the coating layer comprises one or more of sodium carboxymethylcellulose, hydroxypropylcellulose, styrene-ethylene pyridine copolymer, polyvinylpyrrolidone, soluble starch, chitosan, carrageenan, xanthan gum, sodium alginate, gelatin, guar gum, acrylic resin, hypromellose phthalate, cellulose acetate phthalate. When the aerosol having a temperature generated by the atomising element 1130 flows downstream through the active functional element 1120, the coating layer can be heated by the aerosol and thereby volatilised or broken down to allow the active substrate to contact the aerosol and thereby release the active ingredient.

[0097] In some embodiments, the coating layer has a thickness of 0.001 to 0.1 mm; this is advantageous for facilitating release of the active substrate within in use.

[0098] In some embodiments, the active substrate comprises a tobacco material providing an active ingredient, such as nicotine. In such embodiments, the active substrate is used to provide the active ingredient, such as nicotine, for delivery in the aerosol to the user; the active substrate comprises or is derived from one or more plant products or components thereof; for example, in some particular embodiments, the active substrate comprises leaves, bark, fibrous tissue, stems, roots, petals, fruits, etc. of a plant; for example, in one particular embodiment, the active substrate comprises or is derived from one or more plant species or components thereof, and the plant species is tobacco. For example, in one particular embodiment, the active substrate comprises a mixture of plants, such as tobacco and Chinese herbs. The active substrate can comprise tobacco or tobacco-containing material; for example, the tobacco or tobacco-containing material can comprise any of tobacco leaf, tobacco rib fragments, cured tobacco leaf, sun-cured tobacco leaf, burley tobacco leaf, Oriental tobacco leaf, tobacco stem, reconstituted tobacco leaf, homogenised tobacco, extruded tobacco, tobacco pulp, cast leaf tobacco, and expanded tobacco.

[0099] Alternatively, in yet other embodiments, the active substrate comprises other plant tissue providing other active ingredients to replace nicotine. For example, in some embodiments, these other plant tissue to replace tobacco can be derived from common Chinese herbal crops or floral crops; Chinese herbal crops such as one or more of angelica, cassia seed, dandelion, lamiaceae, jujube, medlar, fritillaria, panax notoginseng, fat, borneol, peppermint oil, saffron, honeysuckle, poria cocos, radix puerariae, radix salviae miltiorrhizae, lignum, perilla leaf, radix bupleuri, radix isatidis, radix astragali, radix prunellae, radix ginseng, radix paeoniae alba, radix gastrodiae, schisandra chinensis, etc.; floral crops such as one or more of tea leaf, lotus leaf, liquorice, clove, chrysanthemum, star anise, mulberry leaf, rosmarinus officinalis, perilla, cardamom, dried tangerine or orange peel, gynostemma pentaphyllum, lavender, rose, jasmine, bitter buckwheat tea, hibiscus, lily, thyme, mace, ecklonia radiata, costus, etc.

[0100] In some embodiments, the active substrate includes a flavourant for increasing or providing a flavour of the aerosol; in some embodiments, the flavourant typically includes at least one of a liquid organic alcohol or oil or fat having a flavour such as gamma octalactone, ethyl maltol, methyl chavicol (MCP), 2-acetylpyrazine, 2,3,3-trimethylpyrazine. In embodiments, the flavourant typically has a volatilisation temperature or boiling point in the range of 50°C to 200°C, similar to the temperature of the aerosol generated by the aerosolisation element 1130 as it passes downstream through the active functional element 1120; then in use, as the aerosol generated by the aerosolisation element 1130 passes downstream through the active functional element 1120, the flavourant forms volatile flavour components and entrains them in the aerosol for downstream delivery.

[0101] In this embodiment, the plant material and / or flavourant for providing the active ingredient is arranged separately from the aerosolisation element 1130; in which the flavourant is included in the active functional element 1120 and is supported by the tobacco material or plant material.

[0102] In some embodiments, the active substrate includes: 65 to 90 wt% of the tobacco material or plant material, 5 to 25 wt% of the flavourant.

[0103] In yet other alternative embodiments, the active substrate further includes: a solid-liquid phase change polymer. In some embodiments, the solid-liquid phase change polymer is polyethylene glycol (PEG), which can be one or more of PEG 800, PEG 1000, PEG 1500, PEG 2000, PEG 4000, PEG 6000, PEG 8000. In embodiments, the polyethylene glycol (PEG) has a phase transition temperature in the range of 40°C to 100°C; when the aerosol generated by the aerosolisation element 1130 passes downstream through the active particulate, the solid-liquid phase change polymer can be heated by the aerosol and thereby transition from a solid state at ambient temperature to a liquid state. In one beneficial effect, the solid-liquid phase change polymer absorbs heat from the aerosol during the solid-liquid phase transition, which can significantly lower the temperature of the aerosol delivered downstream, preventing the aerosol from burning the mouth.

[0104] In embodiments, the solid-liquid phase change polymer is not necessarily included in the active substrate.

[0105] In embodiments, the filter element 1110 further includes:

[0106] an aerosol modifier release component 1150 including an aerosol modifier. In some embodiments, the aerosol modifier release component 1150 is a capsule or burstlet; in particular, for example, a flavour capsule. In some embodiments, the aerosol modifier release component 1150 configured as a capsule has a diameter in the range of 2.0 mm to 5.0 mm.

[0107] In some embodiments, the aerosol modifier is configured to modify the generated aerosol, for example, by changing the taste, flavor, acidity, or olfactory or gustatory or biological metabolic properties of the aerosol. The aerosol modifier can be provided in an aerosol modifier release component 1150, such as a capsule, which is capable of releasing the aerosol modifier as the aerosol flows through.

[0108] In some embodiments, the aerosol modifier can include one or more of a flavorant, a colorant, and a sorbent. In some embodiments, the partial property of the aerosol includes a property of the aerosol other than a flavor, such as a sweetness or an acidity. For example, in some embodiments, a flavorant having a sweetness, in use, causes an increase in the sweetness of the aerosol delivered downstream to a user. For another example, in some embodiments, a flavorant having an acidity, such as lemon dry or mint, is used to lower or raise the pH to change the acidity property of the aerosol. For yet another example, in some embodiments, a sorbent having a partial constituent sorption, such as a carbon sorbent that sorbs water vapor, is used to sorb a partial amount of water vapor in the aerosol delivered to a user, thereby preventing a burnt mouth feel of the aerosol.

[0109] According to Figure 1 to Figure 3 The aerosol-generating article 1000 further includes, as shown in

[0110] A tubular base 1129 for wrapping and confining the first spacer element 1121, the second spacer element 1122, and the active functional element 1120. In manufacture, the active particles of the first spacer element 1121, the second spacer element 1122, and the active functional element 1120 are wrapped and confined by the tubular base 1129 to be assembled as a whole, and then wrapped by the outer wrapper 1160 together with other elements of the aerosol-generating article 1000, which is advantageous for the manufacture of the aerosol-generating article 1000. In some embodiments, the tubular base 1129 can be made of paper, metal, ceramic, or organic polymer plastic that can withstand a temperature of at least 150°C.

[0111] According to Figure 1 to Figure 3 The base 1129 is located between the atomizing element 1130 and the filter element 1110, as shown in

[0112] According to Figure 1 to Figure 2In the illustrated embodiment, the first isolation element 1121 and / or the second isolation element 1122 is substantially annular. The first isolation element 1121 and the second isolation element 1122 are spaced within the aerosol generating article 1000 and / or the substrate 1129, and in turn, the active particulate matter of the active functional element 1120 is at least partially enclosed by the substrate 1129. In some embodiments, the first isolation element 1121 and / or the second isolation element 1122 is made of paper, metal, ceramic, or organic polymer plastic that can withstand a temperature of at least 150°C. The annular sidewall of the first isolation element 1121 and / or the second isolation element 1122 is bonded to the substrate 1129, and in turn, is enclosed by the substrate 1129. A first baffle wall 1125 is arranged within the first isolation element 1121 and is arranged perpendicular to the axial direction, for blocking the active particulate matter of the active functional element 1120 from leaking upstream. A second baffle wall 1126 is arranged within the second isolation element 1122 and is arranged perpendicular to the axial direction, for blocking the active particulate matter of the active functional element 1120 from leaking downstream.

[0113] In embodiments, a plurality of first air holes 1123 is arranged on the first baffle wall 1125, and in turn, the first baffle wall 1125 is permeable to airflow. Also, a plurality of second air holes 1124 is arranged on the second baffle wall 1126, and in turn, the second baffle wall 1126 is permeable to airflow. In some embodiments, the diameter of the first air holes 1123 and / or the second air holes 1124 is in the range of 0.01mm to 1.5mm, and in turn, air flows smoothly therethrough. In use, the aerosol generated by the heated atomization element 1130 upstream enters the active functional element 1120 from the first air holes 1123, and in turn, carries or entrains one or more components produced by the active particulate matter downstream from the second air holes 1124.

[0114] According to Figure 1 to Figure 2 In the illustrated embodiment, the aerosol generating article 1000 further comprises:

[0115] A first cavity 1141 is formed or defined between the first isolation element 1121 and the atomization element 1130; more specifically, the first cavity 1141 is located between the first baffle wall 1125 and the atomization element 1130; or more specifically, the first cavity 1141 is substantially located within the first isolation element 1121. In use, the aerosol generated by the heated atomization element 1130 enters the active functional element 1120 after passing through the first cavity 1141.

[0116] In use, the first cavity 1141 can provide storage and buffering on the downstream transmission path of the aerosol, on the one hand; and on the other hand, the first cavity 1141 can help to reduce the draw resistance of the aerosol generating article 1000 in use.

[0117] According to Figure 1 to Figure 2In the illustrated embodiment, the aerosol generating article 1000 further comprises:

[0118] a second cavity 1144 formed or defined between the second partition element 1122 and the filter element 1110; more specifically, the second cavity 1144 is located between the second baffle 1126 and the filter element 1110; or more specifically, the second cavity 1144 is substantially located within the second partition element 1122. In use, the aerosol carrying or entraining the one or more components of the active particulate matter passes through the second cavity 1144 before entering the filter element 1110; the second cavity 1144 can be used to facilitate further mixing of the aerosol with the components of the active particulate matter carried or entrained thereby, resulting in a more uniform mouthfeel of the aerosol output downstream. Likewise, the second cavity 1144 can also further assist in reducing the draw resistance of the aerosol generating article 1000 in use.

[0119] In some embodiments, the first cavity 1141 and the second cavity 1144 can have a length in the axial direction of the aerosol generating article 1000 of between about 1 mm and about 5 mm.

[0120] According to Figure 1 to Figure 3 In some embodiments, the first cavity 1141 and the second cavity 1144 are located within the tubular substrate 1129.

[0121] According to Figure 3 In use, the aerosol generating article 1000 is received in a heating device to form an aerosol generating system, and the aerosol generating article 1000 is heated by the heating device to generate an aerosol. In embodiments, the heating device comprises:

[0122] a chamber having an open mouth 40; in use, the aerosol generating article 1000 is removably received within the chamber through the open mouth 40 of the chamber;

[0123] a heater 30 extending at least partially within the chamber and inserted into the aerosol generating article 1000 when the aerosol generating article 1000 is received within the chamber to heat the aerosol generating article 1000 to release a plurality of volatile compounds from the aerosol generating article 1000, and the volatile compounds are formed by the heating process only;

[0124] a power source 10 for supplying power;

[0125] circuitry 20 for directing an electrical current between the power source 10 and the heater 30.

[0126] In Figure 3In the illustrated embodiment, the heater 30 is generally in the shape of a pin or needle or rod or bar or column or sheet or plate. When the aerosol generating article 1000 is received in the chamber, the heater 30 extends into the atomizing element 1130 from the upstream end 1100 of the aerosol generating article 1000 for heating to generate an aerosol. In some embodiments, the heater 30 can have a length of about 10-18 mm and an outer diameter of about 2-4 mm.

[0127] In embodiments, when the aerosol generating article 1000 is received in the heating device, the heater 30 extends into the atomizing element 1130 and away from the first cavity 1141 and / or the active functional element 1120. In use, the aerosol generated by the atomizing element 1130 is heated downstream through the active functional element 1120 to entrain at least one volatile component of the active substrate 1122 and is then output downstream.

[0128] Alternatively, in yet other embodiments, when the aerosol generating article 1000 is received in the heating device, the heating device can simultaneously heat the atomizing element 1130 and the active functional element 1120. This is advantageous for facilitating faster release of volatile components from the active functional element 1120.

[0129] In some embodiments, the heater 30 can also be configured to be at least partially disposed around or circumscribe the chamber; for example, the heater 30 is configured in a tubular shape to at least partially circumscribe the chamber. When the aerosol generating article 1000 is received in the chamber, the heater 30 at least partially circumscribes or surrounds the aerosol generating article 1000 and heats from the outer periphery of the aerosol generating article 1000. Also, when the aerosol generating article 1000 is received in the heating device, the aerosol generating article 1000 is at least partially contained and held within the heater 30, and is thereby heated from the outside by the heater 30 to release volatile compounds from the aerosol generating article 1000, which are formed only by the heating process. In some embodiments, the tubular heater 30 can have an inner diameter of about 5.8-10 mm.

[0130] Alternatively, Figure 4 and Figure 5 A schematic view of the first spacer element 1121a and the second spacer element 1122a axially combined is shown in yet another embodiment; in this embodiment, the annular sidewall of the first spacer element 1121a and the annular sidewall of the second spacer element 1122a are longitudinally combined to circumferentially surround and confine the active particulate of the active functional element 1120a, which is more convenient for industrial mass production of the aerosol generating article 1000.

[0131] In particular in the embodiment, the annular sidewall of the first spacer element 1121a has a section 1127a with a reduced outer diameter, and the annular sidewall of the second spacer element 1122a has a section 1128a with an increased inner diameter. Thus in assembly as shown by arrow P11, the first spacer element 1121a and the second spacer element 1122a can be axially assembled by inserting the section 1127a with the reduced outer diameter of the first spacer element 1121a into the section 1128a with the increased inner diameter of the second spacer element 1122a. Figure 5 In particular in the embodiment, the annular sidewall of the first spacer element 1121a has a section 1127a with a reduced outer diameter, and the annular sidewall of the second spacer element 1122a has a section 1128a with an increased inner diameter. Thus in assembly as shown by arrow P11, the first spacer element 1121a and the second spacer element 1122a can be axially assembled by inserting the section 1127a with the reduced outer diameter of the first spacer element 1121a into the section 1128a with the increased inner diameter of the second spacer element 1122a.

[0132] Alternatively Figure 6 to Figure 8 A schematic view of yet another aerosol generating article 1000b of a more convenient embodiment is shown. In this embodiment, the manufacturing process is according to Figure 7 In particular in the embodiment, the annular sidewall of the first spacer element 1121a has a section 1127a with a reduced outer diameter, and the annular sidewall of the second spacer element 1122a has a section 1128a with an increased inner diameter. Thus in assembly as shown by arrow P11, the first spacer element 1121a and the second spacer element 1122a can be axially assembled by inserting the section 1127a with the reduced outer diameter of the first spacer element 1121a into the section 1128a with the increased inner diameter of the second spacer element 1122a. Figure 7 In particular in the embodiment, the annular sidewall of the first spacer element 1121a has a section 1127a with a reduced outer diameter, and the annular sidewall of the second spacer element 1122a has a section 1128a with an increased inner diameter. Thus in assembly as shown by arrow P11, the first spacer element 1121a and the second spacer element 1122a can be axially assembled by inserting the section 1127a with the reduced outer diameter of the first spacer element 1121a into the section 1128a with the increased inner diameter of the second spacer element 1122a. Figure 8 In particular in the embodiment, the annular sidewall of the first spacer element 1121a has a section 1127a with a reduced outer diameter, and the annular sidewall of the second spacer element 1122a has a section 1128a with an increased inner diameter. Thus in assembly as shown by arrow P11, the first spacer element 1121a and the second spacer element 1122a can be axially assembled by inserting the section 1127a with the reduced outer diameter of the first spacer element 1121a into the section 1128a with the increased inner diameter of the second spacer element 1122a. Figure 8 In particular in the embodiment, the annular sidewall of the first spacer element 1121a has a section 1127a with a reduced outer diameter, and the annular sidewall of the second spacer element 1122a has a section 1128a with an increased inner diameter. Thus in assembly as shown by arrow P11, the first spacer element 1121a and the second spacer element 1122a can be axially assembled by inserting the section 1127a with the reduced outer diameter of the first spacer element 1121a into the section 1128a with the increased inner diameter of the second spacer element 1122a.

[0133] In the embodiment shown in Figure 6 to Figure 8 In the embodiment shown in

[0134] In some embodiments, the first isolation element 1125b and / or the second isolation element 1126b is substantially sheet-like. The first isolation element 1125b and / or the second isolation element 1126b is gas flow permeable. Specifically, a plurality of first gas holes 1123b is arranged on the first isolation element 1125b; a plurality of second gas holes 1124b is arranged on the second isolation element 1126b.

[0135] In embodiments, a first cavity 1141b is defined between the first isolation element 1125b and the upstream end of the first tubular base 1121b; and a second cavity 1142b is defined between the second isolation element 1126b and the downstream end of the first tubular base 1121b.

[0136] It should be noted that the preferred embodiments of the present application are shown in the description and drawings of the present application, but are not limited to the embodiments described in the specification, and further, those of ordinary skill in the art can make improvements or changes according to the above description, and all these improvements and changes shall belong to the protection scope of the claims of the present application.

Claims

1. An aerosol-generating article, characterized in that, Comprising: an atomization element comprising aerosol-forming agent configured to generate aerosol when heated; an active functional element arranged downstream of the atomization element; the active functional element comprising active particulate matter comprising a coating layer and an active substrate wrapped by the coating layer; in use, the aerosol generated by the atomization element entrains one or more volatile components released by the active substrate as it flows downstream through the active functional element for downstream delivery.

2. An aerosol-generating article according to claim 1, wherein, Further comprising: a first cavity between the atomization element and the active functional element.

3. An aerosol-generating article according to claim 1 or 2, wherein, Further comprising: a second cavity downstream of the active functional element for mixing of aerosol and entrained one or more volatile components released by the active substrate within the second cavity.

4. An aerosol-generating article according to claim 3, wherein, The second cavity can have a length in an axial direction of the aerosol-generating article of between 1 and 5 mm.

5. An aerosol-generating article according to claim 1 or 2, wherein Further comprising: a first spacer element between the atomization element and the active functional element; a second spacer element downstream of the active functional element; The active particulate matter of the active functional element is confined or retained between the first spacer element and the second spacer element.

6. An aerosol-generating article according to claim 5, wherein, The first spacer element and the second spacer element are arranged spaced apart in an axial direction of the aerosol-generating article; Alternatively, the first spacer element and the second spacer element are axially combined.

7. An aerosol-generating article according to claim 5, wherein, Further comprising: a tubular base body housing and enclosing the first and second spacer elements and the active particulate matter of the active functional element.

8. An aerosol-generating article according to claim 5, wherein, Further comprising: a first tubular base body; a second tubular base body within the first tubular base body and having a length less than the first tubular base body; the active particulate matter being housed or confined within the second tubular base body; The first spacer element is located within the first tubular base body and abuts an upstream end of the second tubular base body; the second spacer element is located within the first tubular base body and abuts a downstream end of the second tubular base body.

9. The aerosol-generating article of claim 5, wherein, The first and / or second spacer element is air flow permeable.

10. An aerosol-generating article according to claim 1 or 2, wherein, The active functional element has a length of between 10 and 50 mm; and / or, the atomization element has a length of between 5 and 20 mm.

11. An aerosol-generating article according to claim 1 or 2, wherein, The atomization element further comprises: a carrier for loading the aerosol-forming agent.

12. An aerosol-generating article according to claim 11, wherein, The carrier is formed by spiral winding or reciprocating folding of a sheet.

13. An aerosol-generating article according to claim 12, wherein, The sheet surface is rough; and / or, the sheet surface is formed with indentations or grooves or protrusions or burrs.

14. An aerosol-generating article according to claim 12, wherein, The sheet has perforations.

15. An aerosol-generating article according to claim 12, wherein, The carrier has an air passage defined therethrough in an axial direction.

16. An aerosol-generating article according to claim 12, wherein, The areal density of the sheet is 25-80 g / m 2 .

17. An aerosol-generating article according to claim 12, wherein, The sheet has a thickness of between 30 and 120 μm.

18. The aerosol-generating article of claim 11, wherein, The atomization element further comprises: a shaped layer for wrapping and confining the carrier from the outside to prevent the carrier formed by winding or folding from unwinding.

19. An aerosol-generating article according to claim 1 or 2, wherein, Further comprising: an aerosol modifier release component downstream of the active functional element for releasing aerosol modifier; The aerosol modifier is configured to modify the generated aerosol by changing the olfactory or gustatory or biological metabolic properties of the aerosol.

20. An aerosol-generating article comprising, Comprising: an atomization element comprising aerosol-forming agent configured to generate aerosol when heated; an active functional element arranged downstream of the atomization element; an active functional element arranged downstream of the atomisation element; the active functional element comprising active particulate matter; in use, the aerosol generated by the atomisation element being delivered downstream with entrained one or more volatile components released by the active particulate matter as the aerosol flows downstream through the active functional element; a first cavity between the atomisation element and the active functional element; and / or, a second cavity downstream of the active functional element for mixing of the aerosol and the one or more volatile components released by the active particulate matter entrained therein within the second cavity.

21. An aerosol-generating system comprising: comprising: an aerosol-generating article according to any of claims 1 to 20; and, a heating device comprising: a chamber for receiving the aerosol-generating article; a heater configured to heat at least an atomisation element of the aerosol-generating article.

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