Aerosol-generating article
Patent Information
- Application Number
- CN202521993858.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-16
- Publication Date
- 2026-09-08
- Estimated Expiration
- 2035-09-16
Smart Images
Figure CN224722670U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of heated non-combustible aerosol generation technology, and more particularly to an aerosol generation product. 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 methods of heating tobacco or other non-tobacco products involve arranging sensing sensors, such as sheet-like metal sensors, internally to induce eddy currents and generate heat. Utility Model Content
[0004] One embodiment of this application provides an aerosol generating article, comprising:
[0005] The aerosol generation matrix is configured to generate aerosols when heated;
[0006] A receptor is located outside the aerosol generating matrix and surrounds or encloses the aerosol generating matrix; the receptor is configured as a cylindrical shape with mesh and can be penetrated by a changing magnetic field to generate heat, thereby heating the aerosol generating matrix.
[0007] At least a portion of the material of the aerosol generating matrix permeates or embeds within the mesh of the sensor.
[0008] In some embodiments, the area of the mesh on the receptor is 0.000078 mm². 2 ~0.20mm 2 ;
[0009] And / or, the diameter of the mesh on the sensor is 0.01 to 0.5 mm.
[0010] In some embodiments, the inner surface of the receptor is rough rather than smooth.
[0011] In some embodiments, the inner surface of the receptor has a surface roughness of 0.2 to 3.0 μm.
[0012] In some embodiments, it also includes:
[0013] The outer packaging defines the outer surface of the aerosol-generated article;
[0014] A confinement layer is located between the outer wrapper and the receptor, and wraps around and confines the receptor and the aerosol-generating matrix from the outside.
[0015] In some embodiments, the thermal conductivity of the confinement layer is less than 1 W / (m·k) to provide insulation at least partially between the sensor and the outer wrapping.
[0016] In some embodiments, the air permeability of the confinement layer is less than 100 CU.
[0017] In some embodiments, the thickness or strength of the limiting layer is greater than the thickness or strength of the outer wrapping.
[0018] In some embodiments, the receptor and the aerosol generating matrix are formed by winding together a mesh sheet with a matrix layer bonded to its surface, wherein the mesh sheet is positioned on the outside and wraps the matrix layer during winding, so that the receptor is formed by the mesh sheet and the aerosol generating matrix is formed by the matrix layer after winding.
[0019] In some embodiments, the receptor and the aerosol generating matrix are not closed in the circumferential direction; the receptor and / or the aerosol generating matrix have slits with a width of less than 2 mm.
[0020] In some embodiments, the aerosol generating matrix is further surrounded and defined by air channels that pass through the aerosol generating matrix axially.
[0021] Another embodiment of this application also provides an aerosol-generating article, comprising:
[0022] The outer packaging defines the outer surface of the aerosol-generated article;
[0023] The aerosol generation matrix is configured to generate aerosols when heated;
[0024] A receptor is located outside the aerosol generating matrix and surrounds or encloses the aerosol generating matrix; the receptor is configured as a cylindrical shape with mesh and can be penetrated by a changing magnetic field to generate heat, thereby heating the aerosol generating matrix.
[0025] A confinement layer is located between the outer wrapper and the receptor, and wraps and confines the receptor and the aerosol-generating matrix from the outside; the thermal conductivity of the confinement layer is less than 1 W / (m·K) to provide insulation at least partially between the receptor and the outer wrapper.
[0026] In the above aerosol generation products, the aerosol generation matrix can be connected to the receptor through a mortise and tenon structure, thereby enhancing the bonding force between the receptor and the aerosol generation matrix. Attached Figure Description
[0027] 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.
[0028] Figure 1 This is a schematic diagram of an aerosol-generated article provided in one embodiment;
[0029] Figure 2 yes Figure 1 A schematic diagram of a cross-section of an aerosol-generated product;
[0030] Figure 3 yes Figure 1 A schematic diagram of the sheet before the cylindrical receptor is wound up;
[0031] Figure 4 This is a schematic diagram of preparing a matrix layer of predetermined thickness on a sheet in one embodiment;
[0032] Figure 5 yes Figure 4 A schematic diagram of the preparation of a sheet with a matrix layer of predetermined thickness;
[0033] Figure 6 This is a schematic diagram of a sheet material according to yet another embodiment;
[0034] Figure 7 yes Figure 1 A schematic diagram of an aerosol-generated article being heated in a heating device according to one embodiment. Detailed Implementation
[0035] 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.
[0036] 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.
[0037] For example Figure 1 This is a schematic diagram of an aerosol-generating article 1000 according to one embodiment. Figure 1As 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.
[0038] 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.
[0039] 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.
[0040] according to Figure 1 As shown, the aerosol generating article 1000 includes multiple components arranged coaxially from the upstream end 1100 to the downstream end 1200:
[0041] The plug 1140, the aerosol generating matrix 1130, the cooling element 1120, and the filter element 1110.
[0042] The plug 1140, aerosol generating matrix 1130, cooling element 1120 and filter element 1110 are arranged sequentially and constrained by an external enclosure 1160 to form an aerosol generating article 1000.
[0043] In one embodiment, the plug 1140 is located upstream of the aerosol generating matrix 1130. In another embodiment, the plug 1140 is adjacent to and defines the upstream end 1100, and is used to block or seal the upstream end 1100 of the aerosol generating article 1000, thereby preventing material of the aerosol generating matrix 1130 or generated aerosol / aerosol condensate from flowing out from the upstream end 1100. In some examples, the plug 1140 is immediately upstream of the aerosol generating matrix 1130. In another embodiment, the plug 1140 is airflow permeable, allowing air to enter from the upstream end 1100 during suction and flow through the plug 1140 to the downstream aerosol generating matrix 1130.
[0044] In some embodiments, the plug 1140 is made of a porous material, thereby allowing airflow to pass through. In some embodiments, the plug 1140 is made of porous cellulose acetate bundles, polyacrylic acid fiber bundles, polyethylene terephthalate fiber bundles, or polylactic acid fiber bundles.
[0045] exist Figure 1 In the illustrated embodiment, the cooling element 1120 is arranged immediately downstream of and adjacent to the aerosol generating matrix 1130. In use, the cooling element 1120 serves two purposes: firstly, to provide downstream support for the aerosol generating matrix 1130; secondly, volatile substances released from the heated aerosol generating matrix 1130 pass along the cooling element 1120 toward the proximal end 11 of the aerosol generating article, and these 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 axially along the cooling element 1120. This 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 plastics such as polylactic acid. 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.
[0046] exist Figure 1In the illustrated embodiment, filter element 1110 is arranged immediately downstream of cooling element 1120 and defines a downstream end 1200, and is adjacent to cooling element 1120 for filtering aerosols before delivery to the user. Figure 2 In the embodiments shown, the filter element 1110 includes a conventional cellulose acetate or polypropylene tow filter tip with low filtration efficiency.
[0047] 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 is a conventional cigarette paper, fibrous material, organic polymer, etc.
[0048] In some embodiments, the thickness of the outer wrapping 1160 is 0.2 mm to 0.5 mm; more preferably, the thickness of the outer wrapping 1160 is 0.35 mm to 0.45 mm.
[0049] according to Figures 1 to 2 As shown, the aerosol generating product 1000 also includes:
[0050] A receptor 1150 is located outside and surrounds or encloses the aerosol generating matrix 1130. The receptor 1150 may be made of a sensitive ferromagnetic metal or alloy that can be penetrated by a changing magnetic field during use and generate heat. In some embodiments, the sensitive metal or alloy is at least one of iron or an iron alloy, nickel or a nickel alloy, cobalt or a cobalt alloy, graphite, ordinary carbon steel, stainless steel, ferritic stainless steel, permalloy, etc.
[0051] according to Figures 1 to 2 As shown, the receptor 1150 is configured to extend longitudinally along the aerosol generating article 1000. The extension length of the receptor 1150 is not less than 70% of the extension length of the aerosol generating matrix 1130. In some embodiments, the extension length of the aerosol generating matrix 1130 is approximately 10 to 18 mm, specifically approximately 12 mm; correspondingly, the extension length of the receptor 1150 is approximately 8 to 15 mm, specifically approximately 11 to 12 mm.
[0052] exist Figure 1In the illustrated embodiment, the extension length of the receptor 1150 is equal to the extension length of the aerosol generating matrix 1130, so that the receptor 1150 can extend to or penetrate into the longitudinal ends opposite to the aerosol generating matrix 1130. This can help provide more complete heating of the aerosol generating matrix 1130 during use to avoid waste of matrix material. Alternatively, in some embodiments, the length of the receptor 1150 is less than the length of the aerosol generating matrix 1130, and the receptor 1150 avoids the two longitudinal ends opposite to the aerosol generating matrix 1130; or in some embodiments, the receptor 1150 may not extend to either of the two longitudinal ends opposite to the aerosol generating matrix 1130, or may extend only to one of the two longitudinal ends of the aerosol generating matrix 1130 and be spaced apart from the other.
[0053] according to Figures 1 to 5 As shown, the cylindrical receptor 1150 is formed by winding a mesh sheet 1150a. In Figure 3 In this design, the cylindrical receptor 1150, formed by winding a mesh sheet 1150a, has a cylindrical shape. Figures 1 to 5 In the illustrated embodiment, the wound cylindrical receptor 1150 completely surrounds the aerosol generating matrix 1130, such that the aerosol generating matrix 1130 is surrounded by the receptor 1150.
[0054] according to Figures 1 to 5 As shown, the sensor 1150 is formed by winding a mesh sheet 1150a with mesh openings 1152a. The presence of mesh openings 1152a is advantageous for making the winding operation of the mesh sheet 1150a easier. Simultaneously, by reducing the mass of the sensor 1150 through the mesh openings 1152a, it helps to increase the heating rate of the sensor 1150. Furthermore, the reduced volume of the sensor 1150 through the mesh openings 1152a allows for the adjustment of the electrical characteristics of the sensor 1150 coupled to the circuit, such as the Q value, equivalent impedance, or equivalent inductance, so that these electrical characteristics remain within a suitable range.
[0055] exist Figures 1 to 5 In the illustrated embodiment, the cylindrical receptor 1150, formed by winding a mesh sheet 1150a, is continuous. In this embodiment, the perforations of the wound cylindrical receptor 1150 are defined by the mesh openings 1152a of the mesh sheet 1150a. According to... Figures 1 to 5 As shown, the mesh sheet 1150a is formed by punching holes in a dense sheet. In some embodiments, punching holes in the dense sheet may include at least one of mechanical punching, laser punching, or chemical etching punching.
[0056] In some embodiments, the mesh sheet 1150a comprises only a single layer of sensitive metal or alloy, rather than multiple layers laminated or pressed together; therefore, the wound sensor 1150 also comprises only a single layer of material. For example, in some embodiments, the mesh sheet 1150a is made of a sensitive metal or alloy, such as at least one of iron or iron alloy, nickel or nickel alloy, cobalt or cobalt alloy, graphite, ordinary carbon steel, stainless steel, ferritic stainless steel, permalloy, etc. Accordingly, the wound sensor 1150 also comprises the above-mentioned sensitive metal or alloy, thereby being able to be penetrated by a changing magnetic field and generate heat.
[0057] In some embodiments, the receptor 1150 has a single-layer structure.
[0058] In some embodiments, the thickness of the receptor 1150 is 0.001 mm to 0.5 mm; more preferably, the thickness of the receptor 1150 is 0.01 mm to 0.2 mm; and even more preferably, the thickness of the receptor 1150 is 0.03 mm to 0.1 mm.
[0059] In some embodiments, the Curie temperature of the receptor 1150 is 200–400°C; more preferably, the Curie temperature of the receptor 1150 is 250–360°C.
[0060] In some embodiments, the mesh on the receptor 1150 can be circular, square, elliptical, semi-circular, polygonal, star-shaped, heart-shaped, petal-shaped, cross-shaped, teardrop-shaped, etc. For example Figure 6 The diagram shows a schematic of a sheet 1150b used for winding to form a sensor 1150 in yet another embodiment. Figure 6 The mesh 1152b on the sheet 1150b is hexagonal; therefore, the mesh on the sensor 1150 formed after winding is also hexagonal.
[0061] In some embodiments, the area of the mesh on the receptor 1150 is 0.000078 mm². 2 ~0.20mm 2 In some embodiments, the diameter of the mesh on the receptor 1150 is 0.01 to 0.5 mm.
[0062] In the embodiment, the inner surface of the sensor 1150 is rough; specifically, the surface of the sheet 1150a before winding can be formed by surface treatment processes such as corona, electrochemical etching, indentation, and sanding, which is beneficial for promoting the bonding of the slurry for preparing the aerosol generation matrix 1130 on the inner surface of the sensor 1150.
[0063] In some optional embodiments, the inner surface of the receptor 1150 has a surface roughness Ra of 0.2–3.0 μm. In some more preferred embodiments, the surface roughness Ra of the inner surface of the receptor 1150 is between 0.6 and 1.2 μm. In one specific embodiment, the surface roughness Ra of the inner surface of the receptor 1150 is approximately 0.8 μm. Here, "surface roughness" is a term in the field of materials processing, referring to the unevenness of a processed surface with small spacing and minute peaks and valleys. In practical specifications and use, surface roughness has multiple characterization parameters. For example, the national standard GB / T 1031-2009 "Surface Roughness Parameters and Their Values by Surface Structure Profile Method" details and describes the terminology and evaluation parameter standards related to surface roughness; among these, height characteristic parameters, spacing characteristic parameters, and shape characteristic parameters can all be used to measure surface roughness. The above "Ra, i.e., the arithmetic mean deviation of the profile" is one of the highly characteristic parameters of surface roughness. In the national standard GB / T 1031-2009 "Surface Roughness Parameters and Their Values by Surface Structure Profile Method", it is obtained by detecting and calculating the arithmetic mean of the absolute values of the profile offset within the sampling length lr.
[0064] In some embodiments, the receptor 1150 and the aerosol generating matrix 1130 are integrally wound together. Specifically Figure 4 and Figure 5 A schematic diagram is shown in one embodiment of the sensor 1150 and the aerosol generation matrix 1130 being jointly prepared from sheet 1150a and slurry 300a for preparing aerosol generation matrix 1130.
[0065] according to Figure 4 and Figure 5 As shown, the preparation process may include:
[0066] S10, obtain the raw materials for aerosol generation matrix 1130 and prepare it into a fluid slurry 300a;
[0067] S20, the sheet 1150a is arranged on the flat support platform 420, and the slurry 300a is formed on the sheet 1150a with a predetermined thickness by the equipment 410.
[0068] S30, a sheet 1150a with a matrix layer 1130a formed on its surface is wound, and during the winding, the sheet 1150a is positioned on the outside and wraps the matrix layer 1130a, thereby forming an integrally wound sensor 1150 and an aerosol generating matrix 1130.
[0069] In some embodiments, the slurry 300a is homogenized. Therefore, the prepared aerosol-generating matrix 1130 is also homogenized. In some embodiments, the dynamic viscosity of the slurry 300a is 150–500 Pa·s; this is advantageous for forming the matrix layer 1130a on the surface of the sheet 1150a using the slurry 300a.
[0070] In some embodiments, slurry 300a is prepared from raw materials of aerosol generating matrix 1130. In some embodiments, slurry 300a comprises:
[0071] Plant tissue powder, fiber, aerosol forming agent, adhesive, fragrance and water.
[0072] In some embodiments, the plant tissue powder includes or is derived from one or more plant products or components thereof; for example, in some specific embodiments, plant tissue includes plant leaves, bark, fibrous tissue, stems, roots, petals, fruits, etc. In the aerosol generating matrix 1130, plant tissue primarily serves as a functional active ingredient in one aspect, and in another aspect, it acts as a carrier to provide loading for other components such as aerosol forming agents and fragrances.
[0073] 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.
[0074] In some embodiments, to prepare the aerosol-generating matrix 1130, 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 during preparation to form a slurry with good flowability. In some preferred embodiments, the particle size of the plant tissue powder is between 40 and 800 mesh.
[0075] In some embodiments, the fibers in the aerosol generating matrix 1130 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.
[0076] 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.
[0077] 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 1130 is heated, the flavorings form volatile aroma components and are carried downstream in the aerosol.
[0078] In some embodiments, the adhesive promotes the bonding of the components in the aerosol-generating matrix 1130. 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.
[0079] In some embodiments, the slurry 300a forming the aerosol generating matrix 1130 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 aerosol forming agent, 10 to 30 parts by weight of fragrance, and 50 to 500 parts by weight of water.
[0080] In some embodiments, the thickness of the substrate layer 1130a may be between 1.0 mm and 5.0 mm. In some embodiments, the thickness of the substrate layer 1130a is greater than the thickness of the sheet 1150a.
[0081] In some embodiments, the basis weight or areal density of the matrix layer 1130a formed on the sheet 1150a is 400 g / m². 2 ~3000g / m 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".
[0082] In some embodiments, the apparatus 410 for forming a matrix layer 1130a on a sheet 1150a in step S20 may include a doctor blade, a casting machine, etc.
[0083] In some embodiments, at least a portion of the material of the matrix layer 1130a formed by means of scraping or casting penetrates or embeds into the mesh 1152a of the sheet 1150a, and at least a portion of the material of the wound aerosol generating matrix 1130 penetrates or embeds into the mesh of the receptor 1150, thereby enabling the aerosol generating matrix 1130 to be connected to the receptor 1150 in a tenon-and-mortise structure, thereby improving the bonding force between the receptor 1150 and the aerosol generating matrix 1130.
[0084] In some embodiments, the formation of the matrix layer 1130a on the sheet 1150a by means of scraping or casting in step S20 can be achieved by a single scraping or casting process.
[0085] Alternatively, in some embodiments, in step S20, the slurry 300a is applied to the sheet 1150a to form a matrix layer 1130a, which can be achieved through multiple coats or castings. For example, a certain thickness is formed in each coat or casting, and the desired predetermined thickness is reached after multiple coats or castings. For example, in some embodiments, in the preparation of multiple coats or castings, drying can be performed at 60–120°C after each coat or casting until the moisture content is controlled at 10–20%, which is advantageous for the next coat or casting preparation.
[0086] In some embodiments, before or after winding the matrix layer 1130a, the matrix layer 1130a before winding or the aerosol generating matrix 1130 after winding may be dried to reduce the moisture content in the aerosol generating matrix 1130 and promote the curing of the aerosol generating matrix 1130.
[0087] In some embodiments, the process of winding the sheet 1150a with the matrix layer 1130a on its surface in step S30 can be achieved by first pre-rolling the sheet 1150a with the matrix layer 1130a on its surface into a ring shape using a conical jig, and then performing a second roll into a ring shape. This is advantageous for accurately controlling the size and shape of the winding.
[0088] In some embodiments, the aerosol generating matrix 1130 is a porous structure with internal micropores. In embodiments, the micropores within the aerosol generating matrix 1130 are defined by moisture evaporation during drying, as well as by the pores of plant tissue powder and fibers in the raw materials. In embodiments, the micropores within the aerosol generating matrix 1130 are randomly or disordered. In some embodiments, the porosity of the aerosol generating matrix 1130 is between 40% and 75%.
[0089] according to Figure 1 and Figure 2 As shown, the aerosol-generating matrix 1130 formed by winding is annular. And in Figure 1 and Figure 2 As shown, the aerosol generating matrix 1130 formed by winding has an axially penetrating air channel 1131. The air channel 1131 is a through-hole that penetrates the aerosol generating matrix 1130. In an embodiment, the air channel 1131 is arranged along the central axis of the aerosol generating matrix 1130. In an embodiment, the cross-section of the wound air channel 1131 is substantially circular.
[0090] according to Figure 1 and Figure 2 As shown, the aerosol-generating matrix 1130 and / or receptor 1150 formed by winding are not closed in the circumferential direction. Specifically in Figure 2 In the illustrated embodiment, a slit 1132 is arranged on the wound aerosol generating matrix 1130; the slit 1132 extends radially from the air channel 1133 to the outer surface of the aerosol generating matrix 1130. Correspondingly, the wound receptor 1150 also has a slit extending longitudinally from one end to the other, thereby making the receptor 1150 non-closed in the circumferential direction.
[0091] In some embodiments, the width of the slit 1132 on the wound aerosol generating matrix 1130 and / or receptor 1150 is less than 2 mm. In a more preferred embodiment, the width of the slit 1132 on the aerosol generating matrix 1130 and / or receptor 1150 is less than 1 mm; in a more preferred embodiment, the width of the slit 1132 on the aerosol generating matrix 1130 and / or receptor 1150 is less than 0.5 mm. In some embodiments, the wound aerosol generating matrix 1130 has only one radially extending slit 1132. By having the slit 1132 in a partially closed circumferential direction, the wound aerosol generating matrix 1130 is advantageous for reducing suction resistance and aerosol release during suction.
[0092] according to Figure 1 and Figure 2 As shown, the aerosol generating product 1000 also includes:
[0093] A tubular confinement layer 1170 wraps around and confines the coiled aerosol generating matrix 1130 and / or receptor 1150 from the outside to prevent the coiled aerosol generating matrix 1130 and / or receptor 1150 from spreading out.
[0094] In some embodiments, the thickness and / or hardness of the confining layer 1170 is greater than the thickness and / or hardness of the outer wrapping 1160. In some embodiments, the wall thickness of the confining layer 1170 is between 0.5 and 1.5 mm. In some embodiments, the tensile strength of the confining layer 1170 may be greater than 4 kN / m; more preferably, the tensile strength of the confining layer 1170 is between 6.3 and 6.93 kN / m. In some embodiments, the tensile strength of the outer wrapping 1160 of ordinary cigarette paper is less than 1 kN / m; more preferably, the tensile strength of the outer wrapping 1160 is between 0.17 and 0.2 kN / m.
[0095] In some embodiments, the thermal conductivity of the confinement layer 1170 is less than 1 W / (m·K), which is advantageous for preventing the outer wrapping 1160 from heating and gelatinizing or smoldering when the sensor 1150 heats the aerosol-generating matrix 1130 at temperatures exceeding 250°C. In a more preferred embodiment, the thermal conductivity of the confinement layer 1170 is less than 0.1 W / (m·K).
[0096] In the embodiments, the limiting layer 1170 is prepared from at least one of high-temperature resistant ceramic fiber paper, calcium silicate paper, mica paper, polyaramid fiber paper or polyimide paper.
[0097] In this embodiment, the air permeability of the confinement layer 1170 is <100 CU; the low air permeability of the confinement layer 1170 is advantageous in preventing odors generated by the gelatinization or heating of the outer wrapping 1160 from passing through the ingress sensor 1150 and entering the aerosol generating matrix 1130. Furthermore, the low air permeability of the confinement layer 1170 is advantageous in preventing aerosols generated by the aerosol generating matrix 1130 from escaping through the ingress sensor 1150.
[0098] Figure 7 An embodiment is shown including Figure 1 A schematic diagram of an aerosol generation system for an aerosol-generating product 1000. Figure 7 As shown, the aerosol generation system includes:
[0099] 1000 aerosol-generated products;
[0100] A heating device 100 is used to receive and heat the aerosol generating article 1000, thereby causing the aerosol generating matrix 1130 in the aerosol generating article 1000 to generate aerosols for the user to inhale. According to Figure 7 As shown, when the aerosol generating article 1000 is received within the heating device 100, the filter element 1110 of the aerosol generating article 1000 is exposed outside the heating device 100, which is advantageous for the user to inhale. Furthermore, when the aerosol generating matrix 1130 of the aerosol generating article 1000 is consumed, the user can remove the aerosol generating article 1000 from the heating device 100 for replacement.
[0101] according to Figure 7 In the embodiment shown, the heating device 100 is generally constructed in a flat cylindrical shape, and the structure of the heating device 100 includes:
[0102] The housing 10 has a hollow interior structure, which forms an assembly space for necessary functional components such as electronic devices; the housing 10 has a proximal end 110 and a distal end 120 that are opposite each other along the length direction.
[0103] The receiving port 111 is located at the proximal end 110; in use, the aerosol generating article 1000 can be received at least partially into the housing 10 through the receiving port 111, or removed from the housing 10 through the receiving port 111.
[0104] The support 20 at least partially surrounds or defines a chamber; the chamber is for receiving at least a portion of the aerosol-generating article 1000 that extends into the housing 10 through the receiving port 111.
[0105] Air passage 150 is located between the chamber and air inlet 121; thus, in use, air passage 150 provides a pathway for air to enter the chamber / aerosol generation article 1000 from air inlet 121, such as... Figure 7 As indicated by the middle arrow R11.
[0106] In some alternative embodiments, the support 20 is tubular. Furthermore, the support 20 is non-removable, non-fixed, and non-movable within the housing 10.
[0107] according to Figure 7 As shown, the heating device 100 also includes:
[0108] Battery cell 130 used for power supply;
[0109] Circuit board 140, with circuitry arranged on it;
[0110] An induction coil 40 is arranged around the support 20; the induction coil 40 is electrically connected to the circuit board 140, which can then provide alternating current to generate a changing magnetic field, thereby inducing the sensor 1150 of the aerosol generation article 1000 to form eddy current heating, thereby heating the aerosol generation matrix 1130 to generate aerosol.
[0111] according to Figure 7 As shown, when the aerosol generating article 1000 is received within the chamber and / or support 20, the sensor 1150 is located within the induction coil 40. Furthermore, when the aerosol generating article 1000 is received within the chamber and / or support 20, the sensor 1150 is inductively coupled to the induction coil 40. Thus, when the aerosol generating article 1000 is received within the chamber and / or support 20, the sensor 1150 can be induced by the magnetic field generated by the induction coil 40 to form eddy currents, thereby heating the aerosol generating matrix 1130.
[0112] 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 generation matrix is configured to generate aerosols when heated; The receptor is located outside the aerosol generating matrix and surrounds or encloses the aerosol generating matrix; The receptor is configured as a cylindrical shape with mesh and can be penetrated by a changing magnetic field to generate heat, thereby heating the aerosol to form a matrix. At least a portion of the material of the aerosol generating matrix permeates or embeds within the mesh of the sensor.
2. The aerosol-generating product as described in claim 1, characterized in that, The area of the mesh on the sensor is 0.000078 mm². 2 ~0.20mm 2 ; And / or, the diameter of the mesh on the sensor is 0.01 to 0.5 mm.
3. The aerosol-generating product as described in claim 1 or 2, characterized in that, The inner surface of the receptor is rough rather than smooth.
4. The aerosol-generating product as described in claim 3, characterized in that, The inner surface of the receptor has a surface roughness of 0.2 to 3.0 μm.
5. The aerosol-generating article as described in claim 1 or 2, characterized in that, Also includes: The outer packaging defines the outer surface of the aerosol-generated article; A confinement layer is located between the outer wrapper and the receptor, and wraps around and confines the receptor and the aerosol-generating matrix from the outside.
6. The aerosol-generating article as described in claim 5, characterized in that, The thermal conductivity of the confinement layer is less than 1 W / (m·k), so as to provide insulation at least partially between the sensor and the outer wrapping.
7. The aerosol-generating article as described in claim 5, characterized in that, The air permeability of the limiting layer is less than 100 CU.
8. The aerosol-generating article as described in claim 5, characterized in that, The thickness or strength of the limiting layer is greater than the thickness or strength of the outer wrapping.
9. The aerosol-generating article as described in claim 1 or 2, characterized in that, The receptor and the aerosol generating matrix are formed by winding together a mesh sheet with a matrix layer bonded to its surface. During winding, the mesh sheet is positioned on the outside and wraps around the matrix layer, so that after winding, the mesh sheet forms the receptor and the matrix layer forms the aerosol generating matrix.
10. The aerosol-generating article as described in claim 9, characterized in that, The receptor and the aerosol generating matrix are not closed in the circumferential direction; the receptor and / or the aerosol generating matrix have slits with a width of less than 2 mm.
11. The aerosol-generating article according to any one of claims 1 to 3, characterized in that, The aerosol generating matrix is also surrounded and defined by air channels that pass through the aerosol generating matrix axially.
12. An aerosol-generating product, characterized in that, include: The outer packaging defines the outer surface of the aerosol-generated article; The aerosol generation matrix is configured to generate aerosols when heated; The receptor is located outside the aerosol generating matrix and surrounds or encloses the aerosol generating matrix; The receptor is configured as a cylindrical shape with mesh and can be penetrated by a changing magnetic field to generate heat, thereby heating the aerosol to form a matrix. A confinement layer is located between the outer wrapper and the receptor, and wraps and confines the receptor and the aerosol-generating matrix from the outside; the thermal conductivity of the confinement layer is less than 1 W / (m·K) to provide insulation at least partially between the receptor and the outer wrapper.