Aerosol generating product and aerosol generating system

Abstract

The utility model provides an aerosol generating product and an aerosol generating system. The aerosol generating product comprises an aerosol generating substrate which is configured to be in a columnar shape arranged in the axial direction of the aerosol generating product; the aerosol-generating substrate includes a plurality of substrate units arranged in a circumferential direction, the substrate units configured to generate an aerosol when heated. According to the aerosol-generating product, the aerosol-generating substrate is composed of a plurality of circumferential substrate units, which is beneficial to reduction of draw resistance.

Description

Technical Field

[0001] This application relates to the field of heated non-combustible aerosol generation technology, and in particular to an aerosol generation product and an aerosol. Background Technology

[0002] 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.

[0003] Examples of such products are heating devices that release compounds by heating rather than burning materials. For example, the material could be tobacco or other non-tobacco products, which may or may not contain nicotine. Known tobacco or other non-tobacco products are produced by doping or mixing aerosol-forming agents such as glycerin, flavorings, and binders into tobacco or non-tobacco materials, which generate an aerosol for the user to inhale when heated. Known tobacco or other non-tobacco products are produced by preparing tobacco materials or other non-tobacco plant tissues into granules or sheets, loading aerosol-forming agents, flavorings, and binders onto these granules or sheets, and then pressing and winding them into a cylindrical shape using a cigarette-making machine; tobacco or other non-tobacco products prepared in the above manner are disadvantageous in maintaining low draw resistance. Utility Model Content

[0004] One embodiment of this application provides an aerosol generating article, comprising:

[0005] The aerosol generating matrix is ​​configured as a columnar structure arranged along the axial direction of the aerosol generating article; the aerosol generating matrix includes a plurality of matrix units arranged circumferentially, the matrix units being configured to generate aerosols when heated.

[0006] In some embodiments, the aerosol generating matrix is ​​formed by winding a continuous slurry precursor.

[0007] In some embodiments, the slurry precursor includes a plurality of slurry units arranged in succession, and the slurry units define or form the matrix unit after winding.

[0008] In some embodiments, the matrix unit has a trapezoidal, sectoral, conical, U-shaped, V-shaped, or irregular polygonal cross-sectional shape.

[0009] In some embodiments, the aerosol generating matrix further includes:

[0010] A first air channel extends axially through the aerosol-generating matrix; the first air channel is substantially along the central axis of the aerosol-generating matrix.

[0011] In some embodiments, the plurality of matrix units surround or define the first air channel.

[0012] In some embodiments, the first air channel has a non-circular cross-sectional shape;

[0013] And / or, the first air passage has a quadrilateral, hexagonal, polygonal, or star-shaped cross-sectional shape.

[0014] In some embodiments, the maximum width of the cross-section of the first air channel is smaller than the radius of the aerosol generating matrix.

[0015] In some embodiments, the aerosol generating matrix further includes:

[0016] Multiple slits are formed between two adjacent matrix units; the slits are arranged substantially radially along the aerosol-generating matrix.

[0017] In some embodiments, the slit extends axially through the aerosol-generating matrix.

[0018] In some embodiments, the plurality of slits are arranged substantially radially within the aerosol-generating matrix.

[0019] In some embodiments, the aerosol generating matrix further includes:

[0020] At least one or more second air channels extend axially through the aerosol generating matrix; the second air channels are arranged off-center from the central axis of the aerosol generating matrix.

[0021] In some embodiments, the second air channel is formed or located between two adjacent matrix units.

[0022] In some embodiments, the aerosol generating matrix and / or matrix unit is a porous structure with internal micropores.

[0023] In some embodiments, the porosity of the aerosol generating matrix and / or matrix units is between 40% and 75%.

[0024] In some embodiments, the micropores within the aerosol generating matrix and / or matrix units are disordered.

[0025] In some embodiments, the aerosol generating matrix includes: plant tissue, fiber, aerosol forming agent, adhesive, fragrance, and water.

[0026] In some embodiments, it also includes:

[0027] A tubular matrix surrounds and encapsulates the aerosol generating matrix from the outside.

[0028] In some embodiments, the aerosol generating matrix further includes:

[0029] Multiple slits are formed between two adjacent matrix units; the slits are arranged to extend radially outward from the first air channel along the aerosol-generating matrix.

[0030] In some embodiments, the aerosol generating matrix further includes:

[0031] At least one second air channel extends axially through the aerosol-generating matrix;

[0032] The slit passes through at least one of the second air channels, or the slit is at least partially located between the first air channel and the second air channel.

[0033] In some embodiments, the first air passage is further provided with:

[0034] Flavor-modifying elements are configured to release flavor modifiers to alter the flavor characteristics of aerosols.

[0035] Another embodiment of this application also provides an aerosol-generating article, comprising:

[0036] An aerosol generating matrix is ​​configured to generate aerosols upon heating; the aerosol generating matrix is ​​configured as a columnar structure arranged along the axial direction of the aerosol generating article; the aerosol generating matrix contains or defines:

[0037] The first air channel is arranged along the central axis of the aerosol generating matrix and axially penetrates the aerosol generating matrix;

[0038] Multiple slits are arranged radially outward from the first air channel along the aerosol generating matrix.

[0039] Another embodiment of this application also provides an aerosol-generating article, comprising:

[0040] An aerosol generating matrix is ​​configured to generate aerosols upon heating; the aerosol generating matrix is ​​configured as a columnar structure arranged along the axial direction of the aerosol generating article; the aerosol generating matrix contains or defines:

[0041] Multiple slits are arranged, basically along the radial extension of the aerosol generating matrix;

[0042] At least one second air channel extends axially through the aerosol-generating matrix;

[0043] The at least one second air channel is formed or arranged in the slit along the radial extension path of the aerosol generating matrix.

[0044] Another embodiment of this application also proposes a method for preparing an aerosol generating matrix for aerosol generating articles, the method comprising:

[0045] Obtain the sheet material and the raw materials for preparing the aerosol generating matrix, and then form the raw materials into a slurry and form a slurry precursor of a predetermined thickness on the sheet material;

[0046] The slurry precursor is rolled to form multiple continuous slurry units on the sheet.

[0047] The plurality of continuous slurry units are wound into a column shape, and the sheet is used to wrap the wound slurry units from the outside.

[0048] In some embodiments, the slurry unit has a trapezoidal, fan-shaped, conical, convex, or irregular polygonal cross-sectional shape.

[0049] Another embodiment of this application also proposes an aerosol generation system, comprising:

[0050] The aerosol-generating products described above; and,

[0051] Heating device, including:

[0052] A chamber for receiving the aerosol-generated product;

[0053] A heater is configured to at least heat the aerosol generating matrix of the aerosol generating article.

[0054] In this context, "first air passage" and "second air passage" are used only to distinguish different air passages and do not have any other limiting function; or more specifically, "first air passage" and "second air passage" are only used to distinguish air passages with different formation methods or structures for ease of understanding and description, and do not have a limiting function that they must be present simultaneously. Based on the above description, in implementation, "first air passage" and "second air passage" do not necessarily need to be present simultaneously; for example, in some embodiments, only the first air passage may be present without the second air passage, and in some other embodiments, only the second air passage may be present without the first air passage.

[0055] The above aerosol generating products have an aerosol generating matrix composed of multiple circumferential matrix units, which is beneficial for reducing absorption resistance. Attached Figure Description

[0056] 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.

[0057] Figure 1 This is a schematic diagram of an aerosol-generated article provided in one embodiment;

[0058] Figure 2 yes Figure 1 Another structural schematic diagram of aerosol-generated products;

[0059] Figure 3 This is a schematic diagram of a slurry precursor bonded to a sheet being rolled using a rolling device in one embodiment;

[0060] Figure 4 yes Figure 3 A schematic diagram of the continuous slurry units formed on the surface of the sheet after intermediate roll pressing;

[0061] Figure 5 This is a schematic diagram of a continuous slurry unit for winding and preparing an aerosol generating element, according to yet another embodiment.

[0062] Figure 6 yes Figure 5 A schematic diagram of an aerosol-generating matrix prepared by winding continuous slurry units in a medium.

[0063] Figure 7 This is a schematic diagram of a continuous slurry unit for winding and preparing an aerosol generating element, according to yet another embodiment.

[0064] Figure 8 yes Figure 7 A schematic diagram of an aerosol generating element prepared by continuous slurry unit winding;

[0065] Figure 9 This is a schematic diagram of an aerosol generating element prepared by winding in yet another embodiment;

[0066] Figure 10 yes Figure 1 A schematic diagram of aerosol-generated products being heated in a heating device;

[0067] Figure 11 This is a schematic diagram of an aerosol-generated article provided in yet another embodiment. Detailed Implementation

[0068] 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.

[0069] 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.

[0070] For example Figure 1 This is a schematic diagram of an aerosol-generating article 1000 according to one embodiment. Figure 1 As shown, 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, while upstream is correspondingly 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, for example... Figure 1 The direction is indicated by the middle arrow R12. During 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, the user can suction from the downstream end 1200 to inhale the aerosol.

[0071] Among them Figure 1 In the illustrated embodiment, for ease of use by typical 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.

[0072] 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 also 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.

[0073] according to Figure 1 As shown, the aerosol generating article 1000 includes multiple components arranged from the upstream end 1100 to the downstream end 1200:

[0074] Aerosol generating element 1130, cooling element 1120, and filter element 1110. These elements are arranged sequentially and constrained by an external enclosure 1160 to form an aerosol generating article 1000.

[0075] In this embodiment, the aerosol generating element 1130 is located near and defines the upstream end 1100. The aerosol generating element 1130 is described as capable of releasing volatile compounds upon heating, which can form aerosols. The aerosols described herein can be visible or invisible and can include 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.

[0076] In an embodiment, the cooling element 1120 may be arranged immediately downstream of and adjacent to the aerosol generating element 1130. The cooling element 1120 serves two purposes: firstly, to provide downstream support for the aerosol generating element 1130; secondly, during use, volatile substances released by the aerosol generating element 1130 after heating pass downstream of the aerosol generating article 1000 along the cooling element 1120, and the volatile substances can be cooled within the cooling element 1120 to form an aerosol inhaled by the user. Figure 1 In an alternative embodiment shown, the cooling element 1120 includes a cooling cavity 1121 extending along the length of the cooling element 1120. The axially extending cooling cavity 1121 ensures that the airflow through the cooling element 1120 is longitudinally directed without significant radial deviation. The cooling element 1120 can cool the temperature of the aerosol stream drawn through it by means of heat transfer. The components of the aerosol will interact with the space within the cooling element 1120 and lose thermal energy. The cooling element 1120 may comprise ceramic, metal, or organic polymer plastic, etc. In some embodiments, the temperature of the aerosol stream may decrease by more than 10 degrees Celsius as it is drawn through the cooling element 1120. In some embodiments, the temperature of the aerosol stream may decrease by more than 25 degrees Celsius or more than 30 degrees Celsius as it is drawn through the cooling element 1120.

[0077] Filter element 1110 is arranged immediately downstream of cooling element 1120 and defines downstream end 1200, and is adjacent to cooling element 1120 for filtering aerosols before delivery to the user. Figure 1 In the embodiments shown, the filter element 1110 comprises a conventional cellulose acetate or polypropylene tow filter core with low filtration efficiency.

[0078] Alternatively, in some other embodiments, the aerosol generating article 1000 may not include the cooling element 1120, and a cooling effect may be achieved by making the filter element 1110 longer, thereby providing heat exchange during the downstream delivery of the aerosol.

[0079] To assemble the aerosol-generating article 1000, the multiple components described above are aligned and tightly enclosed within the outer enclosure 1160. Figure 1 In the illustrated embodiment, the outer wrapping 1160 may be conventional cigarette paper, fibrous material, organic polymer, etc.

[0080] In some embodiments, the thickness of the outer wrapping 1160 is 0.2 to 0.5 mm; more preferably, the thickness of the outer wrapping 1160 is 0.35 to 0.45 mm.

[0081] In some embodiments, the length of the aerosol generating element 1130 is between 5 and 20 mm.

[0082] according to Figures 1 to 2 As shown, the aerosol generating element 1130 includes:

[0083] The basic tubular substrate 1131 and the aerosol generating matrix 1132 formed or arranged within the substrate 1131.

[0084] In some embodiments, the substrate 1131 is formed by winding a sheet. In some embodiments, the sheet may be at least one of paper tubes, such as cellulose paper tubes, metal tubes, such as aluminum foil paper tubes or tin foil tubes, or nonwoven fiber tubes, ceramic tubes, or organic polymer plastic tubes that can withstand temperatures of at least 150°C. For example, in one specific embodiment, the sheet used to wind and form the substrate 1131 is cigarette paper or leak-proof cigarette paper.

[0085] In some embodiments, the thickness of the sheet used to form the substrate 1131 is 0.01 to 0.50 mm. In some embodiments, the areal density of the sheet used to form the substrate 1131 is 15 to 150 g / m². 2 .

[0086] In some embodiments, the surface of the sheet used to form the substrate 1131 is rough, which is advantageous for promoting the loading or bonding of the aerosol-generating matrix 1132 to the inner surface of the substrate 1131. In some specific embodiments, the surface of the sheet used to form the substrate 1131 is roughened by forming indentations or textures through processes such as hydroentangling or embossing. Alternatively, the surface of the sheet used to form the substrate 1131 may be roughened by forming structures such as protrusions or burrs. In embodiments, the inner surface of the substrate 1131 is roughened; the inner surface of the substrate 1131 may have structures such as indentations, textures, protrusions, or burrs.

[0087] In some embodiments, the aerosol generating matrix 1132 is a porous structure with internal micropores. In some embodiments, the porosity of the aerosol generating matrix 1132 is between 40% and 75%. In some embodiments, the micropores inside the aerosol generating matrix 1132 are randomly or disordered.

[0088] In some embodiments, the aerosol generating matrix 1132 includes:

[0089] Plant tissues, fibers, aerosol forming agents, adhesives, fragrances and flavors, and water.

[0090] In some embodiments, plant tissues include or are derived from one or more plant products or components thereof; for example, in some specific embodiments, plant tissues include leaves, bark, fibrous tissue, stems, roots, petals, fruits, etc. In the aerosol generating matrix 1132, plant tissues primarily function as active ingredients in one aspect, and in another aspect serve as carriers to provide loading for other components such as aerosol forming agents and fragrances.

[0091] For example, in some embodiments, the plant tissue includes at least tobacco or tobacco-containing material that provides an active ingredient such as nicotine; in this embodiment, the plant tissue including tobacco or tobacco-containing material is used to provide an active ingredient such as nicotine in an aerosol delivered to a user. In some embodiments, the 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. Or in yet other embodiments, the plant tissue includes other plant tissues that provide other active ingredients as alternatives to nicotine. For example, in some embodiments, the other plant tissues of these alternative tobaccos may be derived from common Chinese herbal medicines or herbaceous crops; Chinese herbal medicines include one or more of the following: dandelion, apocynum venetum, jujube, wolfberry, fritillaria cirrhosa, notoginseng, malva nut, borneol, menthol, saffron, poria cocos, kudzu root, sandalwood, agastache rugosa, perilla leaf, bupleurum, isatis root, astragalus, prunella vulgaris, ginseng, white peony root, gastrodia elata, schisandra chinensis, chrysanthemum, and plantain; herbaceous crops include one or more of the following: tea, lotus leaf, mint, licorice, clove, gynostemma pentaphyllum, ginkgo leaf, mulberry leaf, perilla, jasmine, buckwheat tea, dandelion tea, honeysuckle, tartary buckwheat tea, coffee, and areca nut.

[0092] In some embodiments, to prepare the aerosol generation matrix 1132, for example, by post-injection curing of a slurry, the plant tissue is added primarily in powder form. This is advantageous for mixing the plant tissue powder with other materials to form a slurry with good flowability during preparation. In some preferred embodiments, the particle size of the plant tissue powder is between 40 and 800 mesh.

[0093] In some embodiments, the fibers in the aerosol generating matrix 1132 can provide loading capacity to load functional ingredients such as fragrances or adhesives. In some preferred embodiments, the fibers include plant fibers such as softwood pulp fibers, hardwood pulp fibers, hemp fibers, tobacco fibers, or one or more combinations of non-plant fibers such as metal fibers and synthetic fibers.

[0094] In some embodiments, the aerosol forming agent is used to generate an aerosol mist upon heating. In embodiments, the aerosol forming agent is one or more combinations of propylene glycol, glycerol, triacetin, triethyl citrate, isopropyl myristate, methyl stearate, glyceryl monocaprylate, polyols, and ammonium salts.

[0095] In some embodiments, flavorings are used to enhance or provide aroma to the aerosol. In some embodiments, 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 use, when the aerosol generating matrix 1132 is heated, the flavorings form volatile aroma components and are carried downstream in the aerosol.

[0096] In some embodiments, the adhesive promotes the bonding of the components in the aerosol generation matrix 1132. In some embodiments, the adhesive is selected from one or more combinations of methylcellulose, hydroxypropyl methylcellulose, carboxymethylcellulose, guar gum, ethylcellulose, corn starch, carrageenan, konjac gum, gellan gum, xanthan gum, gum arabic, locust bean gum, and sodium alginate.

[0097] In some embodiments, the aerosol generating matrix 1132 comprises: 10-80 parts by weight of plant tissue powder, 1-10 parts by weight of fiber, 1-10 parts by weight of adhesive, 10-50 parts by weight of aerosol forming agent, and 10-30 parts by weight of fragrance. In some embodiments, the water content in the aerosol generating matrix 1132 is less than 12 wt%; for example, in some optional embodiments, the water content of the aerosol generating matrix 1132 is approximately between 5 and 12 wt%.

[0098] In some embodiments, the aerosol generating matrix 1132 is formed by solidifying a slurry precursor prepared from the above-mentioned materials as raw materials.

[0099] In some embodiments, the slurry precursor forming the aerosol generating matrix 1132 comprises: 10 to 80 parts by weight of plant tissue powder, 1 to 10 parts by weight of fiber, 1 to 10 parts by weight of adhesive, 10 to 50 parts by weight of smoke generator, 10 to 30 parts by weight of fragrance and flavoring, and 50 to 500 parts by weight of water.

[0100] Alternatively, in some other variations, the aerosol generating matrix 1132 may further include a sensing material, such as a sensitive metal or alloy powder, strip, sheet, or tube; the sensing material can be penetrated by a changing magnetic field and generate heat, thereby heating the aerosol generating matrix 1132.

[0101] according to Figure 10 As shown, in use, the aerosol generating article 1000 is received by a heating device to form an aerosol generating system, and the aerosol generating element 1130 of the aerosol generating article 1000 is heated by the heating device to generate aerosol. According to Figure 10 In the illustrated embodiment, the heating device includes:

[0102] The chamber has an opening 40; in use, the aerosol-generating article 1000 can be removably received in the chamber through the opening 40.

[0103] A heater 30, which extends at least partially within the chamber, is inserted into the aerosol generating element 1130 of the aerosol generating article 1000 when the aerosol generating article 1000 is received in the chamber, and heats the aerosol generating article 1000 to release a variety of volatile compounds, which are formed solely by heat treatment.

[0104] Cell 10 is used for power supply;

[0105] Circuit 20 is used to guide current between cell 10 and heater 30.

[0106] exist Figure 10 In the illustrated embodiment, 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.

[0107] In this embodiment, when the aerosol generating article 1000 is received in the heating device, the heater 30 extends into the aerosol generating element 1130. In use, the aerosol generating element 1130 is heated to generate aerosol, which is then output downstream.

[0108] In an embodiment, when the aerosol generating article 1000 is received in a heating device, the air passage 1133 in the aerosol generating element 1130 is advantageous for reducing the resistance to insertion of the pin or needle-shaped heater 30.

[0109] 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, and is then heated from the outside by the heater 30 surrounding and heating the aerosol generating element 1130 of the aerosol generating article 1000, 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.

[0110] In some embodiments, heater 30 includes at least one of a resistance heater, induction heater, infrared heater, microwave heater, or light heater such as a laser heater.

[0111] In some embodiments, the process of preparing an aerosol generating element 1130 comprising a tubular substrate 1131 and an aerosol generating matrix 1132 may include:

[0112] S10, Obtain the raw materials required for preparing the aerosol generating element 1130:

[0113] Obtain a sheet for forming the matrix 1131; and obtain raw materials for forming the aerosol generating matrix 1132, such as 10 to 80 parts by weight of plant tissue powder, 1 to 10 parts by weight of fiber, 1 to 10 parts by weight of adhesive, 10 to 50 parts by weight of smoke generator, 10 to 30 parts by weight of fragrance and flavoring and 50 to 500 parts by weight of water, and mix them to form a slurry.

[0114] S20, the slurry is bonded to the surface of the sheet through at least one or more coating processes such as blade coating or casting to form... Figure 3 The sheet 1131a shown has a slurry precursor 1132a with a predetermined thickness on its surface; the slurry precursor 1132a bonded to the surface of the sheet 1131a is dried until the moisture content of the slurry precursor 1132a is controlled at 5 to 12 wt%; the sheet with the slurry precursor bonded to its surface is cut, for example, by using a cutter to cut it into a width suitable for winding by a cigarette rolling device, such as a cigarette rolling machine.

[0115] In step S20, the drying of the slurry precursor 1132a can be carried out in multiple steps to gradually reduce the moisture content to the required range of 5-12 wt%. For example, during the process of forming a predetermined thickness of slurry precursor 1132a through multiple coatings, the coated slurry precursor 1132a is pre-dried after each coating until the moisture content is controlled at approximately 10-20%. When the slurry precursor 1132a reaches the required predetermined thickness after multiple coatings, it is dried as a whole until the moisture content reaches the required range of 5-12 wt%.

[0116] according to Figure 3 As shown, the slurry precursor 1132a formed on the surface of sheet 1131a by a coating process such as scraping or casting has a substantially uniform thickness.

[0117] In some embodiments, the total thickness of the slurry precursor 1132a and sheet 1131a prepared in step S20 can be controlled to be 2.0–5.0 mm; and in some embodiments, the quantitative or areal density of the sheet-like material comprising the slurry precursor 1132a and sheet 1131a prepared in step S20 is controlled to be 400–1200 g / m³. 2 Among them, "quantity" is a term in the cigarette industry, referring to the mass per unit area of ​​thin or sheet-like materials; "quantity" has the same meaning as the material science term "area density".

[0118] S30, according to Figure 3 As shown, a slurry precursor 1132a of a predetermined thickness bonded to the surface of sheet 1131a is rolled using a rolling press to form... Figure 4 The multiple consecutive slurry units 1132b shown are bonded to the surface of sheet 1131b.

[0119] In step S30, according to Figure 3 As shown, the roll forming equipment may include two pressure rollers, namely a first pressure roller 210 and a second pressure roller 220; wherein, the surface of the first pressure roller 210 has a structure of alternating axially arranged protrusions and recesses, the protrusions and recesses surrounding the first pressure roller 210 in the circumferential direction; the surface of the second pressure roller 220 is smooth. During the roll forming process, a sheet 1131a, bonded with a slurry precursor 1132a, is first placed between the first pressure roller 210 and the second pressure roller 220, with the sheet 1131a bonded to the second pressure roller 220 and the slurry precursor 1132a bonded to the first pressure roller 210 as shown. Figure 3 As indicated by the middle arrow P11; then, by driving the first pressure roller 210 and / or the second pressure roller 220 to rotate about their central axis, as shown... Figure 3As indicated by the middle arrow P12, the sheet 1131a, which is attached to the slurry precursor 1132a, is rotated and moved. After the roll forming is completed, the slurry precursor 1132a with a basically uniform thickness can be formed into a series of convex slurry units 1132b.

[0120] S40, Figure 4 A sheet 1131b incorporating a slurry unit 1132b is wound into a cylindrical shape in a cigarette-making device, during which the sheet 1131b wraps around the slurry unit 1132b on the outside. After winding, the slurry unit 1132b is cured to obtain a basic columnar aerosol generating element 1130.

[0121] In the prepared aerosol generating element 1130, the substrate 1131 is formed by winding a sheet 1131b, and the aerosol generating matrix 1132 is formed by curing a slurry unit 1132b.

[0122] according to Figures 1 to 4 As shown, the aerosol generating matrix 1132 has an axially penetrating air channel 1133; the air channel 1133 is a through-hole form penetrating the aerosol generating matrix 1132. In an embodiment, the air channel 1133 is arranged along the central axis of the aerosol generating matrix 1132. In an embodiment, the air channel 1133 has a non-circular cross-sectional shape. According to... Figures 1 to 4 As shown, the air channels 1133 of the aerosol generation matrix 1132 are formed by multiple convex slurry units 1132b being wound around each other. Specifically, according to Figure 4 As shown, the convex end of the slurry unit 1132b formed by the first pressure roller 210 has a flat end face 1133b; during the winding process of the plurality of convex slurry units 1132b, the flat end faces 1133b of the plurality of convex slurry units 1132b surround and define the air channel 1133 forming the aerosol generating matrix 1132. In use, the air channel 1133 can reduce the suction resistance of the aerosol generating element 1130 during suction.

[0123] according to Figures 1 to 4 As shown, the aerosol generating matrix 1132 also has a plurality of slits 1134. In an embodiment, the plurality of slits 1134 are arranged circumferentially around the air channel 1133. The plurality of slits 1134 are arranged radially. The slits 1134 extend radially from the air channel 1133 to the matrix 1131 along the aerosol generating element 1130.

[0124] In an embodiment, the slit 1134 is formed by the overlapping interfaces of adjacent slurry units 1132b during the winding process of multiple convex slurry units 1132b. For example, in Figure 4During the winding process, the side surfaces of two adjacent slurry units 1132b overlap to form an interface between them. After the slurry units 1132b are cured after winding, the size of the interface will expand to form a slit 1134. In some embodiments, the slit 1134 is less than 2 mm; more preferably, the slit 1134 is less than 1 mm; or in the commonly prepared aerosol generating matrix 1132, the slit 1134 is less than 0.5 mm.

[0125] In one embodiment, the wound aerosol generating matrix 1132 may include a plurality of matrix units located between slits 1134; the plurality of matrix units are arranged sequentially in a circumferential direction. Each of the plurality of matrix units is formed by curing slurry unit 1132b.

[0126] In some embodiments, the protrusion height of the plurality of convex slurry units 1132b is slightly smaller than the radius of the aerosol generating matrix 1132; therefore, the maximum radial dimension of the matrix unit of the aerosol generating matrix 1132 formed by the slurry units 1132b is also slightly smaller than the radius of the aerosol generating matrix 1132. In some optional embodiments, the protrusion height of the slurry units 1132b may be between 2.0 and 5.0 mm. For example, in some specific embodiments, the diameter of the aerosol generating matrix 1132 is 7.4 mm and the radius is approximately 3.7 mm, then the protrusion height of the convex slurry units 1132b may be approximately 2.8 to 3.5 mm. The maximum width of the cross-section of the air channel 1133 defined after winding may be approximately 0.5 to 2.0 mm. In some embodiments, the maximum width of the cross-section of the air channel 1133 is smaller than the radius of the aerosol generating matrix 1132. The maximum radial dimension of the matrix unit of the prepared aerosol generation matrix 1132 is approximately limited by the protrusion height of the slurry unit 1132b. Therefore, the maximum radial dimension of the matrix unit of the aerosol generation matrix 1132 is also smaller than the radius of the aerosol generation matrix 1132.

[0127] exist Figures 1 to 4 As shown, the air channel 1133 defined by the flat end faces 1133b of four slurry units 1132b has a square or quadrilateral cross-sectional shape. Alternatively, in more embodiments, the air channel 1133 defined by more convex slurry units 1132b has an approximately pentagonal, hexagonal, or polygonal shape.

[0128] For example Figure 5 and Figure 6 A schematic diagram is shown in yet another embodiment of a plurality of slurry units 1132c rolled on a sheet 1131c, and an aerosol generating element 1130c formed by winding them. Figure 5 and Figure 6In the illustrated embodiment, the protruding ends of the plurality of slurry units 1132c are rounded, and the cross-section surrounding the formed air channel 1133c is star-shaped. And in Figure 6 As shown, the aerosol generating matrix 1132c formed after winding also has a plurality of slits 1134c that extend radially from the air channel 1133c to the substrate 1131c.

[0129] or Figure 7 and Figure 8 A schematic diagram of a further plurality of slurry units 1132d rolled on a sheet 1131d and an aerosol generating element 1130e formed by winding them is shown in yet another embodiment. In this embodiment, the aerosol generating matrix 1132e of the wound aerosol generating element 1130e has:

[0130] The first air channel 1133e is defined by multiple wound slurry units 1132d; the first air channel 1133e is basically arranged along the central axis of the aerosol generation matrix 1132e;

[0131] Multiple slits 1134e extend radially from air channel 1133e to substrate 1131e; slits 1134e are formed by the overlapping interface of the side surfaces of adjacent slurry units 1132d during the winding process.

[0132] The second air channel 1135e is offset from the central axis of the aerosol generating matrix 1132e; and the second air channel 1135e penetrates the aerosol generating matrix 1132e axially.

[0133] In an embodiment, the second air channel 1135e is located between two adjacent matrix units of a plurality of matrix units within the aerosol generating matrix 1132e.

[0134] In one embodiment, the second air channel 1135e is defined by a groove 1135d on the side surface of the slurry unit 1132d. According to... Figure 7 As shown, the side surface of the slurry unit 1132d has a groove 1135d, which, after winding, forms and defines the second air passage 1135e. In an embodiment, the second air passage 1135e is located on the extension path of the slit 1134e; or, the slit 1134e passes through the second air passage 1135e; or, the slit 1134e is at least partially located between the first air passage 1133e and the second air passage 1135e.

[0135] In one embodiment, the cross-sectional shape of the second air channel 1135e may be defined by the shape of the groove 1135d on the side surface of the slurry unit 1132d. In some alternative embodiments, the cross-sectional shape of the second air channel 1135e may be a semi-circle, a circle, an ellipse, a triangle, a quadrilateral, a polygon, or other irregular shapes.

[0136] Alternatively, in more embodiments, the slurry unit 1132d may have more shapes, such as trapezoidal, fan-shaped, conical, U-shaped, V-shaped, or irregular polygonal cross-sectional structures; the protruding ends of the slurry unit 1132d may be pointed, arc-shaped, or flat, etc. Correspondingly, the first air channel 1133e and / or slit 1134e formed by winding may have more shapes.

[0137] For example in Figure 9 A schematic diagram of a wound aerosol generating element 1130f according to another embodiment is shown; in this embodiment, the width dimension of the slit 1134f of the aerosol generating matrix 1132f is varied. Figure 9 In the illustrated embodiment, the width of at least a portion of the slit 1134f gradually increases or decreases radially along the aerosol generating matrix 1132f.

[0138] Alternatively, in some other embodiments, the aerosol generating matrix 1132 / 1132c / 1132e / 1132f of the above-mentioned aerosol generating article can be formed from a slurry precursor by molding. Specifically, the molding preparation method includes:

[0139] S100, Obtain the raw materials required for preparing aerosol generation matrix 1132 / 1132c / 1132e / 1132f, and mix them to form a slurry precursor;

[0140] S200 involves injecting the slurry precursor into the mold cavity via injection or casting, and then demolding it after drying and curing to prepare the aerosol generation matrix 1132 / 1132c / 1132e / 1132f.

[0141] or Figure 11 This is a schematic diagram of an aerosol-generated article provided in yet another embodiment. Figure 11 In the illustrated embodiment, 1000g of aerosol-generating product comprises:

[0142] The aerosol generating element 1130g, the cooling element 1120g, and the filter element 1110g are enclosed by an external package 1160g.

[0143] exist Figure 11In this embodiment, the aerosol generating element 1130g includes a generally tubular substrate 1131g and an aerosol generating matrix 1132g formed or disposed within the substrate 1131g. An air channel 1133g with an axially penetrating structure is disposed within the aerosol generating matrix 1132g; the air channel 1133g is a through-hole extending through the aerosol generating matrix 1132g. In an embodiment, the air channel 1133g is arranged along the central axis of the aerosol generating matrix 1132g.

[0144] exist Figure 11 Within the air channel 1133g, a flavor modifying element 1180g is also arranged; the flavor modifying element 1180g is, for example, a flavor bar. The flavor modifying element 1180g can release a flavor modifier. In some embodiments, the flavor modifier released by the flavor modifying element 1180g is configured to modify the flavor of the generated aerosol, for example, by altering the taste, flavor, acidity, or olfactory or gustatory or biometabolic properties of the aerosol.

[0145] In some embodiments, the flavor modifier released by the flavor modifying element 1180g may include one or more of flavoring agents, coloring agents, and adsorbents. In some embodiments, the aerosol flavor of the aerosol includes flavor characteristics of the aerosol that are different from aroma, such as sweetness or pH. For example, in some embodiments, the flavor modifier released by the flavor modifying element 1180g is a sweet flavoring agent that adds sweetness to the aerosol delivered downstream to the user during use. As another example, in some embodiments, the flavor modifier released by the flavor modifying element 1180g is a pH-sensitive flavoring agent, such as dried lemon or mint, which can be used to lower or raise the pH to change the pH characteristics of the aerosol. As yet another example, in some embodiments, an adsorbent with partial component adsorption properties, 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.

[0146] In some embodiments, the flavor-modifying element 1180g, such as a flavor bar, penetrates the aerosol-generating matrix 1132g. In some embodiments, the flavor-modifying element 1180g, such as a flavor bar, does not completely fill or occupy the air channel 1133g. For example, in some embodiments, the length of the flavor-modifying element 1180g, such as a flavor bar, is less than the length of the air channel 1133g; or, for example, in some embodiments, a gap is maintained between the flavor-modifying element 1180g, such as a flavor bar, and the aerosol-generating matrix 1132g surrounding the air channel 1133g.

[0147] 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: The aerosol generating matrix is ​​configured as a columnar structure arranged along the axial direction of the aerosol generating article; the aerosol generating matrix includes a plurality of matrix units arranged circumferentially, the matrix units being configured to generate aerosols when heated.

2. The aerosol-generating product as described in claim 1, characterized in that, The matrix unit has a cross-sectional shape that is trapezoidal, sector-shaped, conical, U-shaped, V-shaped, or an irregular polygon.

3. The aerosol-generating product as described in claim 1 or 2, characterized in that, The aerosol generation matrix also includes: A first air channel extends axially through the aerosol-generating matrix; the first air channel is substantially along the central axis of the aerosol-generating matrix.

4. The aerosol-generating product as described in claim 3, characterized in that, The plurality of matrix units surround or define the first air channel.

5. The aerosol-generating product as described in claim 3, characterized in that, The first air channel has a non-circular cross-sectional shape; And / or, the first air passage has a quadrilateral, hexagonal, polygonal, or star-shaped cross-sectional shape.

6. The aerosol-generating product as described in claim 3, characterized in that, The maximum width of the cross-section of the first air channel is smaller than the radius of the aerosol-generating matrix; And / or, the maximum radial dimension of the matrix unit along the radial direction of the aerosol generating matrix is ​​smaller than the radius dimension of the aerosol generating matrix.

7. The aerosol-generating article as described in claim 1 or 2, characterized in that, The aerosol generation matrix also includes: Multiple slits are formed between two adjacent matrix units; the slits are arranged substantially radially along the aerosol-generating matrix.

8. The aerosol-generating article as described in claim 7, characterized in that, The slit extends axially through the aerosol-generating matrix.

9. The aerosol-generating article as described in claim 7, characterized in that, The multiple slits are arranged in a substantially radial pattern within the aerosol-generating matrix.

10. The aerosol-generating article as described in claim 1 or 2, characterized in that, The aerosol generation matrix also includes: At least one or more second air channels extend axially through the aerosol generating matrix; the second air channels are arranged off-center from the central axis of the aerosol generating matrix.

11. The aerosol-generating article as described in claim 10, characterized in that, The second air channel is formed or located between two adjacent matrix units.

12. The aerosol-generating article as described in claim 1 or 2, characterized in that, The aerosol generating matrix and / or matrix unit is a porous structure with micropores inside.

13. The aerosol-generating article as described in claim 12, characterized in that, The porosity of the aerosol generating matrix and / or matrix units is between 40% and 75%.

14. The aerosol-generating article as described in claim 12, characterized in that, The micropores within the aerosol generating matrix and / or matrix units are disordered.

15. The aerosol-generating article as described in claim 1 or 2, characterized in that, Also includes: A tubular matrix surrounds and encapsulates the aerosol generating matrix from the outside.

16. The aerosol-generating article as described in claim 3, characterized in that, The aerosol generation matrix further includes: Multiple slits are formed between two adjacent matrix units; the slits are arranged to extend radially outward from the first air channel along the aerosol-generating matrix.

17. The aerosol-generating article as described in claim 16, characterized in that, The aerosol generation matrix also includes: At least one second air channel extends axially through the aerosol-generating matrix; The slit passes through at least one of the second air channels, or the slit is at least partially located between the first air channel and the second air channel.

18. The aerosol-generating article as described in claim 3, characterized in that, The first air passage is also equipped with: Flavor-modifying elements are configured to release flavor modifiers to alter the flavor characteristics of aerosols.

19. An aerosol-generating product, characterized in that, include: Aerosol generating matrix is ​​configured to generate aerosols when heated; The aerosol generating matrix is ​​configured as a columnar shape arranged along the axial direction of the aerosol generating article; the aerosol generating matrix contains or defines the following: The first air channel is arranged along the central axis of the aerosol generating matrix and axially penetrates the aerosol generating matrix; Multiple slits are arranged radially outward from the first air channel along the aerosol generating matrix.

20. An aerosol-generating product, characterized in that, include: Aerosol generating matrix is ​​configured to generate aerosols when heated; The aerosol generating matrix is ​​configured as a columnar shape arranged along the axial direction of the aerosol generating article; the aerosol generating matrix contains or defines the following: Multiple slits are arranged, basically along the radial extension of the aerosol generating matrix; At least one second air channel extends axially through the aerosol-generating matrix; The at least one second air channel is formed or arranged in the slit along the radial extension path of the aerosol generating matrix.

21. An aerosol generation system, characterized in that, include: Aerosol-generating articles according to any one of claims 1 to 20; as well as, Heating device, including: A chamber for receiving the aerosol-generated product; A heater is configured to at least heat the aerosol generating matrix of the aerosol generating article.

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