CN117098469A - Assembly for an article for use in an aerosol provision system - Google Patents

Assembly for an article for use in an aerosol provision system Download PDF

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Publication number
CN117098469A
CN117098469A CN202280024708.3A CN202280024708A CN117098469A CN 117098469 A CN117098469 A CN 117098469A CN 202280024708 A CN202280024708 A CN 202280024708A CN 117098469 A CN117098469 A CN 117098469A
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China
Prior art keywords
assembly
aerosol
less
tobacco
sheet
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CN202280024708.3A
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Chinese (zh)
Inventor
安德烈·格里先科
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Nicoventures Trading Ltd
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Nicoventures Trading Ltd
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Publication date
Priority claimed from GBGB2109120.2A external-priority patent/GB202109120D0/en
Application filed by Nicoventures Trading Ltd filed Critical Nicoventures Trading Ltd
Priority claimed from PCT/GB2022/050663 external-priority patent/WO2022195274A1/en
Publication of CN117098469A publication Critical patent/CN117098469A/en
Pending legal-status Critical Current

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Abstract

An assembly for use in or as an article for a combustible sol supply system may include a body of material extending in a longitudinal direction, wherein the body of material includes a curled sheet formed with a curl pattern including a series of substantially parallel ridges and grooves. The average spacing between adjacent ridges may be greater than about 0.3mm, and the average density of the body of material may be about 0.1 to about 0.25mg/mm 3 . Additionally or alternatively, the crimp amplitude may be less than about 0.7mm or about 0.7mm to about 1.2mm. There is also provided a system for supplying a combustible solAn article for use in or as a combustible aerosol supply system, the article comprising an aerosol generating material and a downstream portion downstream of the aerosol generating material, the downstream portion having an assembly. A combustible sol supply system and a method for forming an assembly of articles for use in a combustible sol supply system are also provided.

Description

Assembly for an article for use in an aerosol provision system
Technical Field
The present disclosure relates to an assembly of articles for use in or as a combustible sol supply system, an article for use in or as an aerosol supply system, and a method for forming an assembly of articles for use in or as a combustible sol supply system.
Background
Some tobacco industry products produce aerosols that are inhaled by the user during use. For example, cigarettes form aerosols through the consumption of tobacco material. Such tobacco industry products typically include a mouthpiece through which the aerosol passes into the mouth of the user.
Disclosure of Invention
According to an embodiment described herein, according to a first aspect, there is provided an assembly for use in or as an article for a combustible sol supply system, the assembly comprising a body of material extending in a longitudinal direction, wherein the body of material comprises a curled sheet formed with a curl pattern comprising a series of substantially parallel ridges and grooves, wherein an average spacing between adjacent ridges is greater than about 0.3mm, and wherein an average density of the body of material is from about 0.1 to about 0.25mg/mm 3 。
According to a second aspect there is provided an assembly for use in or as an article for a combustible sol supply system, the assembly comprising a body of material extending in a longitudinal direction, wherein the body of material comprises a curled sheet formed with a curl pattern comprising a series of substantially parallel ridges and grooves, wherein the curl amplitude is less than about 0.7mm, and wherein the average density of the body of material is from about 0.1 to about 0.25mg/mm 3 。
According to an embodiment described herein, according to a third aspect, there is provided an article for use in or as a combustible sol supply system, the article comprising an aerosol generating material and a downstream portion downstream of the aerosol generating material, the downstream portion comprising an assembly according to the first or second aspects above.
According to an embodiment described herein, according to a fourth aspect, there is provided a combustible sol supply system comprising an article according to the above third aspect.
According to a fifth aspect there is provided a method for forming an assembly of articles for use in a combustible sol supply system, the method comprising applying a curl pattern to a sheet, the curl pattern comprising a series of substantially parallel ridges and grooves, wherein the average spacing between adjacent ridges is greater than about 0.3mm, and forming the sheet into a body of material, wherein the body of material has an average density of from about 0.1 to about 0.25mg/mm 3 。
According to a sixth aspect, there is provided a method for forming an assembly of articles for use in a combustible sol supply system, the method comprising applying a curl pattern to a sheet, the curl pattern comprising a series of substantially parallel ridges and grooves, wherein the curl amplitude is less than about 0.7mm and forming the sheet into a body of material, wherein the body of material has an average density of from about 0.1 to about 0.25mg/mm 3 。
Drawings
Embodiments of the invention will now be described, by way of non-limiting example only, with reference to the accompanying drawings, in which:
FIG. 1 is a side cross-sectional view of an article for use with an aerosol supply device, the article comprising a body of material formed from a sheet of material;
FIG. 2A is a cross-sectional end view of the body of material of the article of FIG. 1, taken along line A-A of FIG. 1;
FIG. 2B is a side view of a sheet of material forming the body of material of FIG. 2A;
FIG. 3 is a side cross-sectional view of an article for use with an aerosol supply device;
FIG. 4 is a side cross-sectional view of an article for use with an aerosol supply device;
FIG. 5 is a side cross-sectional view of an article for use with an aerosol supply device; and
fig. 6 is a side cross-sectional view of a multi-length rod for use in making the material body of the article of fig. 5.
Detailed Description
According to the present disclosure, an "aerosol supply system" includes both a combustible aerosol supply system and a non-combustible aerosol supply system.
In accordance with the present disclosure, a "combustible" aerosol supply system is a system in which the constituent aerosol-generating materials of the aerosol supply system (or components thereof) are consumed or burned during use to facilitate delivery of at least one substance to a user.
In some embodiments, the delivery system is a combustible sol supply system, such as a system selected from the group consisting of cigarettes, cigarillos, and cigars.
In some embodiments, the present disclosure relates to a component for use in a combustible sol supply system, such as a filter, a filter rod, a filter segment, a tobacco rod, a paper twist (spiral), an aerosol modifier release component (e.g., a capsule, a thread, or a bead, or a paper (e.g., a forming paper, tipping paper, or cigarette paper)).
According to the present disclosure, a "non-combustible" aerosol-supply system is a system in which the constituent aerosol-generating materials of the aerosol-supply system (or components thereof) are not consumed or combusted to facilitate delivery of at least one substance to a user.
In some embodiments, the substance to be delivered comprises an active substance.
An active substance as used herein may be a physiologically active material, which is a material intended to achieve or enhance a physiological response. For example, the active substance may be selected from the group consisting of health products, nootropic agents, psychoactive agents. The active substance may be naturally occurring or synthetically obtained. For example, the active may include nicotine, caffeine, taurine, caffeine, vitamins (e.g., B6 or B12 or C), melatonin, cannabinoids, or components, derivatives, or combinations thereof. The active substance may comprise one or more ingredients, derivatives or extracts of tobacco, hemp or another plant material (botanical).
In some embodiments, the active comprises nicotine. In some embodiments, the active comprises caffeine, melatonin, or vitamin B12.
As described herein, the active substance may comprise or be derived from one or more plant materials or components, derivatives or extracts thereof. As used herein, the term "plant material" includes any material derived from plants including, but not limited to: extracts, leaves, bark, fibers, stems, roots, seeds, flowers, fruits, pollen, bark, hulls, and the like. Alternatively, the material may comprise a synthetically derived active compound naturally occurring in plant material. Exemplary plant materials are tobacco, eucalyptus, star anise (star anise), hemp, cocoa, hemp, fennel, lemon grass, peppermint, spearmint, juniper berry (rooibos), chamomile (chamomile), flax, ginger, ginkgo, hazelnut, hibiscus, bay, licorice (licorice), green tea, mate tea (mate), orange peel, papaya, rose, sage, tea (e.g., green tea or black tea), thyme, clove, cinnamon, coffee, fennel seed (fennel), basil, bay leaf, cardamom (caramom), coriander, fennel seed (cumin), nutmeg, oregano, red pepper powder, rosemary, saffron, lavender lemon peel, peppermint, juniper (juniper), elder flower, vanilla, wintergreen, perilla, turmeric root powder, sandalwood oil, coriander leaf, bergamot, orange flower, myrtle, blackcurrant liqueur (cassis), valerian, spanish sweet pepper (pimto), nutmeg seed coating, damien (damien), marjoram (marjoram), olive, lemon mint, lemon basil, leek, caraway (carvi), verbena, tarragon, geranium, mulberry, ginseng, theanine, matrine, maca, south africa, damiana (damiana), guarana (guarana), chlorophyll, monkey tree, or any combination thereof. Peppermint may be selected from the following mint varieties: wild mint (Mentha arvensis), mentha piperita cultivars (Mentha arvensis), egyptian mint (Mentha nilaca), mentha piperita (Mentha piperita), mentha piperita cultivars (Mentha piperita citrata c.v.), mentha piperita cultivars (Mentha piperita c.v.), mentha pulegium (Mentha spicata crispa), mentha piperita (Mentha cordifolia), mentha piperita (Mentha longifolia), mentha arvensis (Mentha suaveolens variegata), mentha piperita (Mentha pulegium), mentha piperita cultivars (Mentha spicata c.v.), and Mentha piperita (Mentha suaveolens).
In some embodiments, the active comprises or is derived from one or more plant materials or components, derivatives or extracts thereof, and the plant material is tobacco.
In some embodiments, the active comprises or is derived from one or more plant materials or ingredients, derivatives or extracts thereof, and the plant materials are selected from eucalyptus, star anise, cocoa and hemp.
In some embodiments, the active comprises or is derived from one or more plant materials or ingredients, derivatives or extracts thereof, and the plant materials are selected from the group consisting of loyi Bai Si and fennel.
In some embodiments, the substance to be delivered comprises a flavoring (flavour).
As used herein, the terms "flavor" and "flavor" refer to materials that can be used to produce a desired taste, aroma, or other body sensation (somatosensorial sensation) in an adult consumer product, as permitted by local regulations. They may include naturally occurring flavor materials, plant material extracts, synthetically obtained materials, or combinations thereof (e.g., tobacco, hemp, licorice (licorice), hydrangea, eugenol, white bark magnolia leaf, chamomile, fenugreek, clove, maple, matcha, menthol, japanese mint, fennel seed (fennel), cinnamon bark, turmeric root powder, indian spice (Indian spice), asian spice (Asian spice), herb (hereb), wintergreen, cherry, berry, red berry, cranberry, peach, apple, orange, mango, citrus (clementine), lemon, lime, tropical fruit, papaya, rhubarb, grape, durian, dragon fruit, cucumber, blueberry, mulberry, citrus fruit, honey whiskey (Drambue), bouillon, scotch whiskey, juniper wine agave, rum, spearmint, peppermint, lavender, aloe vera juice, cardamom, celery, bitter skin (cascarilla), nutmeg, sandalwood oil, bergamot, geranium, arabian tea leaf, naswal (naswar), betel nut leaf, shisha, pine tree, honey essence (honey), rose oil, vanilla, lemon oil, orange flower, cherry blossom, cinnamon (cassia), caraway dried seeds, colpitis brandy (cognac), jasmine, ylang-ylang, sage, fennel, behens, multi-spice, ginger, coriander, coffee, hemp, peppermint oil from any of the genus Mentha, eucalyptus, star anise, cocoa, lemon grass, loyi Bai Si, flax, ginkgo, hazelnut, hibiscus, bay tree, mate tea, orange peel, rose, tea (e.g., green tea or black tea), thyme, juniper, elder flower, basil, bay leaf, fennel seed, oregano, red pepper powder, rosemary, saffron, lemon peel, peppermint, perilla, turmeric, coriander leaf, myrtle, blackcurrant liqueur, valerian, spanish sweet pepper, nutmeg seed coating, dami, marjoram, olive, lemon mint, lemon basil, leek, caraway, verbenan, tarragon, limonene, thymol, camphene), flavor enhancers, bitter taste receptor site blockers, sensory receptor site activators or stimulators, sugar and/or sugar substitutes (e.g., sucralose, honey (acesulfame potassium), aspartame, saccharin, cyclamate, lactose, sucrose, glucose, fructose, sorbitol, or mannitol), and other additives (e.g., plant, charcoal, mineral, or fresh air-freshening materials). They may be analog, synthetic or natural components or blends thereof. They may be in any suitable form, for example, liquid (e.g. oil), solid (e.g. powder) or gas.
In some embodiments, the flavoring agent comprises menthol, spearmint, and/or peppermint. In some embodiments, the flavor comprises flavor components of cucumber, blueberry, citrus fruit, and/or raspberry. In some embodiments, the flavoring agent comprises eugenol. In some embodiments, the flavoring agent comprises a flavor component extracted from tobacco. In some embodiments, the flavoring agent comprises a flavor component extracted from cannabis.
In some embodiments, the flavoring agents may comprise a sensate (sensite) intended to achieve a somatosensory that is typically chemically induced and perceived by stimulation of the fifth cranial nerve (trigeminal nerve) (in addition to or in lieu of the flavor or gustatory nerve), and these may include agents that provide thermal, cold, tingling, paralytic effects. Suitable heat-influencing agents may be, but are not limited to, vanillyl ether, and suitable coolants may be, but are not limited to, eucalyptol, WS-3.
For example, an aerosol-generating material is a material capable of generating an aerosol when heated, irradiated, or otherwise energized in any other manner. For example, the aerosol-generating material may be in the form of a solid, liquid or gel, which may or may not contain active substances and/or flavours. In some embodiments, the aerosol-generating material may comprise an "amorphous solid," which may alternatively be referred to as a "monolithic solid" (i.e., non-fibrous). In some embodiments, the amorphous solid may be a dried gel. Amorphous solids are solid materials in which some fluid (such as a liquid) may be retained. In some embodiments, the aerosol-generating material may comprise, for example, from about 50wt%, 60wt%, or 70wt% amorphous solids to about 90wt%, 95wt%, or 100wt% amorphous solids.
The aerosol-generating material may comprise one or more active substances and/or flavours, one or more aerosol-forming materials and optionally one or more other functional materials.
The aerosol-forming material may comprise one or more components capable of forming an aerosol. In some embodiments, the aerosol-forming material may comprise one or more of the following: glycerol, propylene glycol, diethylene glycol, triethylene glycol, tetraethylene glycol, 1, 3-butanediol, erythritol, meso-erythritol, ethyl vanillin, ethyl laurate, diethyl suberate, triethyl citrate, triacetin, diacetin mixtures, benzyl benzoate, tributyl, lauryl acetate, lauric acid, myristic acid, and propylene carbonate (propylene carbonate ).
The one or more other functional materials may include one or more of pH adjusters, colorants, preservatives, binders, fillers, stabilizers, and/or antioxidants.
The material may be present on or in a support (carrier) to form the substrate. The support may for example be or comprise paper, cardboard, paperboard, recycled material, plastics material, ceramic material, composite material, glass, metal or metal alloy. In some embodiments, the support comprises a base. In some embodiments, the base is embedded within the material. In some alternative embodiments, the base is on one or either side of the material.
A consumable is an article comprising or consisting of an aerosol-generating material, part or all of which is intended to be consumed by a user during use. The consumable may include one or more other components, such as an aerosol-generating material storage area, an aerosol-generating material delivery component, an aerosol-generating area, a housing, a wrapper, a mouthpiece, a filter, and/or an aerosol modifier.
An aerosol modifier is a substance configured to modify the aerosol produced, for example by changing the taste, flavor, acidity or other characteristics of the aerosol. The aerosol modifier may be provided in an aerosol modifier release assembly operable to selectively release the aerosol modifier.
The aerosol modifier may be, for example, an additive or an adsorbent. The aerosol modifiers may, for example, include one or more of flavors, colorants, water, and carbon adsorbents. The aerosol modifier may be, for example, a solid, a liquid or a gel. The aerosol modifier may be in powder, wire or particulate form. The aerosol modifier may be free of filter material.
Articles, such as rod-shaped articles, are generally named according to the product length: "conventional" (typically in the range of 68-75mm, e.g., about 68mm to about 72 mm), "short" or "miniature" (68 mm or less), "king size" (typically in the range of 75-91mm, e.g., about 79mm to about 88 mm), "long" or "super-king" (typically in the range of 91-105mm, e.g., about 94mm to about 101 mm), and "super-long" (typically in the range of about 110mm to about 121 mm).
They are also named according to the product perimeter: "conventional" (about 23-25 mm), "wide" (greater than 25 mm), "elongated (slim)," semi-elongated "(about 19-22 mm)," ultra-fine-long "(about 16-19 mm), and" micro-fine-long "(less than about 16 mm).
Thus, for example, an oversized, ultra-long gauge article will have a length of about 83mm and a circumference of about 17 mm.
Each specification may be produced with different length mouthpieces. The mouthpiece length will be about 30mm to 50mm. The tipping paper connects the mouthpiece to the aerosol-generating material and is typically longer than the length of the mouthpiece, for example 3 to 10mm, such that the tipping paper covers the mouthpiece and overlaps the aerosol-generating material, for example in the form of a rod of substrate material, to connect the mouthpiece to the rod.
The articles described herein and their aerosol-generating materials and mouthpieces may be made of, but are not limited to, any of the above specifications.
The terms "upstream" and "downstream" as used herein are relative terms defined in relation to the direction of inhalation of the primary stream aerosol through the article or device when in use.
The filamentary tow material described herein may comprise cellulose acetate tow. The filament tows can also be formed using other materials for forming fibers, such as polyvinyl alcohol (PVOH), polylactic acid (PLA), polycaprolactone (PCL), poly (1-4 butylene succinate) (PBS), poly (butylene adipate-co-terephthalate) (PBAT), starch-based materials, cotton, aliphatic polyester materials, and polysaccharide polymers, or combinations thereof. The filament bundles may be plasticized with a plasticizer suitable for the bundles, such as triacetin, wherein the material is cellulose acetate bundles, or the bundles may be non-plasticized. The tows may have any suitable gauge, such as fibers having a "Y" shaped cross-section or other cross-section (e.g., an "X" shape), a filament denier of 2.5 to 15 denier per filament (e.g., 8.0 to 11.0 denier per filament), and a total denier of 5,000 to 50,000 (e.g., 10,000 to 40,000).
As used herein, the term "tobacco material" refers to any material that includes tobacco or derivatives or substitutes thereof. The term "tobacco material" may include one or more of the following: tobacco, tobacco derivatives, expanded tobacco, reconstituted tobacco or tobacco substitutes. The tobacco material may comprise one or more of the following: ground tobacco, tobacco fibers, cut filler, extruded tobacco, tobacco stems, tobacco flakes, reconstituted tobacco and/or tobacco extracts.
In the drawings described herein, like reference numerals are used to designate equivalent features, articles, or components.
Fig. 1 is a side cross-sectional view of an article 1 for use as a combustible sol supply system (e.g., a cigarette).
The article 1 comprises a cylindrical rod of aerosol-generating material 3 (in this case tobacco material) and a downstream portion (in this case referred to as mouthpiece 2) connected to the aerosol-generating material 3 such that the downstream portion is downstream of the aerosol-generating material 3. The aerosol-generating material 3 provides an aerosol when consumed.
The aerosol-generating material 3, also referred to herein as aerosol-generating substrate 3, comprises at least one aerosol-forming material. In this example, the aerosol-forming material is glycerol. In alternative examples, the aerosol-forming material may be other materials as described herein or a combination thereof, such as propylene glycol.
In this example, the mouthpiece comprises a tubular portion 4a, in this example formed by a hollow tube, also called cooling element. In this example, the mouthpiece 2 comprises an assembly comprising a body of material 6 downstream of the tubular portion 4 a. In this example, the body of material 6 is adjacent to the tubular portion 4a and in abutting relationship with the tubular portion 4 a. The body 6 and the tubular portion 4a each define a substantially cylindrical overall external shape and share a common longitudinal axis.
In this example, the material body 6 of the assembly is formed from a curled sheet. In this example, the body of material comprises a curled sheet formed with a curl pattern comprising a series ofThe rows are substantially parallel ridges and grooves, and the average spacing between adjacent ridges is greater than about 0.3mm. Further, in this example, the crimp amplitude is less than about 0.7mm. In other examples, the sheet may include an average spacing between adjacent ridges of greater than about 0.3mm or a curl amplitude of less than about 0.7mm. Alternatively or additionally, the crimp amplitude may be about 0.7mm to about 1.2mm. In any of these examples, the average density of the body of material may be from about 0.1 to about 0.25mg/mm 3 。
The curl amplitude (also referred to as "curl coefficient") refers to the depth of a groove formed by curling in a sheet forming the body. That is, the curled sheet produces a plurality of peaks and valleys in the sheet when viewed from the first side of the sheet, as shown in fig. 2B, where the curl amplitude "a" is the depth of the valley (measured from its peaks). The crimping may form a "zig-zag" structure or other shape. In some embodiments, adjacent grooves of the curled sheet are spaced apart a distance or have a pitch "P" in the range of 0.3 to 2mm, and preferably in the range of 0.4 to 1 mm. In some embodiments, adjacent grooves of the curled sheet are spaced apart by a distance of at least 0.4mm or at least 0.5, 0.6, 0.7 or 0.8 mm. In some embodiments, adjacent grooves of the curled sheet 10 are spaced apart by a distance of at most 1.5mm, and preferably at most 1.4, 1.3, 1.2, 1.1 or 1.0 mm. For example, the sheet may have a curl: a curl amplitude of less than 500 μm and a spacing between peaks (or valleys) of at least 300 μm, at least 400 μm, or at least 500 μm.
In some embodiments, the sheet 10 is heated as it curls. For example, the sheet 10 may be passed between crimping rollers, wherein one or both of the crimping rollers are heated.
Advantageously, sheets (e.g., paper) having the above curl pitch and/or amplitude have been found to exhibit improved performance when used in components of aerosol supply systems. In particular, these relatively low levels of crimp pitch and amplitude surprisingly produce a body of material having a lower pressure drop than a body formed from a sheet having a higher level of crimp.
In this example, the density of the body of material 6 is about 0.19mg/mm 3 . In one placeIn some embodiments, the body 6 has at least 0.1mg/mm 3 、0.12mg/mm 3 Or 0.15mg/mm 3 Is a density of (3). Alternatively or additionally, the body of material 6 may have a content of less than about 0.3mg/mm 3 Less than about 0.25mg/mm 3 Or less than about 0.22mg/mm 3 Is a density of (3). Advantageously, the density of the body of material may be about 0.15mg/mm 3 To about 0.25mg/mm 3 . These values include any additives contained within the body of material 6. The sheet may have about 0.2 to 0.5mg/mm prior to crimping and forming into a body of material 3 For example, about 0.25, 0.30 or 0.35mg/mm 3 。
In some embodiments, the sheet comprises fibers having a length in the range of 2mm to 6 mm. Such fibers have the advantage that they produce a material that is less likely to absorb and retain aerosol formers (e.g., glycerol in this example) and/or aerosol modifiers (e.g., menthol). Thus, a body of material comprising such fibers may allow a greater amount of aerosol former and/or aerosol modifier to pass through the body of material into the user's mouth. In some embodiments, the body of material comprises fibers having a length in the range of 2mm to 5mm, 2mm to 4mm, or 2mm to 3 mm.
The body of material may comprise fibres having one or more of the following lengths: about 2mm, about 2.5mm, about 3mm, about 3.5mm, about 4mm, about 4.5mm, about 5mm, about 5.5mm, and about 6mm.
The fiber length may be measured according to suitable criteria, and the fiber length described above may be a length weighted average of the fiber lengths. For example, the appropriate fiber length may be selected based on the source of the material (e.g., the type of wood used to provide pulp for the sheet paper production process). For example, the fiber length may be selected based on the form of the cellulosic material used to form the sheet. For example, the category of pine typically produces wood pulp having an average fiber length in the range of about 3.5mm to 4.4mm, while the category of ash (ash) may produce wood pulp having an average fiber length of about 1.05mm to 1.20 mm. The average fiber length in the sheet may be determined, for example, by scanning electron microscopy or other techniques known to those skilled in the art. For example, at least 70% of the fibers may have a length in the range of 2mm to 6mm, or at least 80% or 90%.
In alternative embodiments, the article 1 may be adjusted, for example by removing the tubular portion 4a and/or adjusting the level of aerosol-forming material.
The body of material 6 may be formed from a continuous web of sheet material 6A. In this example, the sheet 6A is gathered to form the material body 6 in a manner similar to a "crepe filter". The sheet 6A may be manufactured using a CU-20 Filter manufacturing machine manufactured by Decoufle (TM). However, those skilled in the art will appreciate that other machines may be used to manufacture the body 6.
In this example, the sheet 6A includes cellulose. In this example, the sheet 6A is paper.
In some embodiments, the continuous web of sheet 6A has a width of at least 60mm, at least 70mm, at least 80mm, at least 90mm, at least 100mm, at least 110mm, or at least 120 mm.
In some embodiments, the continuous web of sheet 6A has a width of at most 240mm, at most 230mm, at most 220mm, at most 210mm, at most 200mm, or at most 190 mm.
In some embodiments, the sheet has a width in the range of 120mm to 200mm, in the range of 150mm to 190mm, in the range of 160mm to 190mm, or in the range of 160mm to 180 mm.
The sheet may have a thickness of about 50 to about 100 μm or about 60 to about 90 μm. In one example, the sheet is a sheet having a thickness of 60 to 70 μm and 30 to 40g/m 2 Is a paper of a basis weight of (a).
The sheet 6A may additionally or alternatively comprise a different material. For example, in some embodiments, the sheet 6A comprises reconstituted tobacco formed into a sheet 6A, the sheet 6A being arranged to form the body of material 6. Reconstituted tobacco comprises cellulose. In another embodiment (not shown), reconstituted tobacco is manufactured into a uniform plug of material forming the body 6. The reconstituted tobacco may optionally be paper reconstituted tobacco.
In some embodiments, sheet 6A comprises paper having a basis weight in the range of 15gsm to 80gsm or in the range of 20gsm to 50 gsm.
In some embodiments, sheet 6A has a basis weight of at least 15gsm, at least 20gsm, at least 25gsm, or at least 30 gsm.
In some embodiments, the sheet has a basis weight of 100gsm or less, 90gsm or less, 80gsm or less, or 70gsm or less. Preferably, the sheet has a basis weight of 60gsm or less, 50gsm or less, or 40gsm or less.
In some embodiments, the sheet has a basis weight in the range of 20gsm to 40gsm, in the range of 24gsm to 36gsm, or in the range of 30gsm to 40 gsm.
The first forming paper 7 is wrapped with the material 6. In this example, the tubular portion 4a and the material body 6 are combined using a second forming paper 9 wrapped around both portions. The tipping paper 5 is wrapped around the entire length of the mouthpiece 2 and a portion of the rod of aerosol-generating material 3, and an adhesive is provided on the inner surface of the tipping paper 5 to connect the mouthpiece 2 and the rod 3.
In this example, the tubular portion 4a is formed of a plurality of layers of paper wound in parallel in a flat seam (flattened seam) to form a hollow tube. In this example, the first and second paper layers are disposed in a double pipe, but in other examples 3, 4 or more paper layers may be used to form 3, 4 or more pipes. Other constructions may be used, such as helically wound paper layers, paperboard tubes, tubes formed using a paper-based process, molded or extruded plastic tubes, or the like.
In some embodiments, the tubular portion has a wall thickness of at least about 150 μm and at most about 2mm, 200 μm to 1.5mm, or 250 μm to 1 mm. In this example, the tubular portion has a wall thickness of about 300 μm. The "wall thickness" of the tubular portion corresponds to the thickness of the wall of the tubular portion in the radial direction. This may be measured, for example, using calipers.
Article 1 has a ventilation level of about 75% of inhaled aerosol through the article. In alternative embodiments, the article may have a ventilation level of 50% to 80% of inhaled aerosol through the article, for example 65% to 75%. These levels of ventilation help to slow the flow of inhaled aerosol through the mouthpiece 2, enabling the aerosol to cool sufficiently before it reaches the downstream end 2b of the mouthpiece 2. Ventilation is provided directly to the mouthpiece 2 of the article 1. In the present example ventilation is provided to the tubular portion 4a, which has been found to be particularly beneficial in assisting the aerosol generation process. Ventilation is provided by first and second parallel rows of ventilation holes 12 (formed in this example as laser perforations) at positions of 13.925mm and 14.625mm respectively from the mouth end 2b downstream of the mouthpiece 2. These ventilation holes 12 pass through the tipping paper 5, the second forming paper 9 and the tubular portion 4a. In alternative embodiments, ventilation may be provided to the mouthpiece at other locations. For example, ventilation may be provided to the body of material 6.
Alternatively, ventilation may be provided to the portion of the article where the tubular body 4a is located by a single row of ventilation holes (e.g. laser perforation). It has been found that this improves aerosol formation, which is believed to be due to the fact that at a given level of ventilation, the airflow through the ventilation holes is more uniform than if multiple rows of ventilation holes were used.
In some examples, the aerosol-generating material 3 described herein is a first aerosol-generating material, and the tubular portion 4a may comprise a second aerosol-generating material. In one example, the wall 4b of the tubular portion 4a comprises a second aerosol generating material. For example, the second aerosol-generating material may be provided on the inner surface of the wall 4b of the tubular portion 4 a.
The second aerosol-generating material comprises at least one aerosol-forming material and may further comprise at least one aerosol-modifying agent or other sensory material. The aerosol-forming material and/or aerosol-modifying agent may be any aerosol-forming material or aerosol-modifying agent as described herein or a combination thereof.
When the aerosol generated by the aerosol-generating material 3 (referred to herein as the first aerosol) is inhaled through the tubular portion 4a of the mouthpiece, heat from the first aerosol may aerosolize the aerosol-forming material of the second aerosol-generating material to form the second aerosol. The second aerosol may include a flavor, which may be any of the flavors described herein, and which may be in addition to or complementary to the flavor of the first aerosol.
Providing the second aerosol-generating material on the tubular body 4a may result in the generation of a second aerosol that enhances or supplements the flavor or visual appearance of the first aerosol.
In this example, the article 1 has an outer perimeter of about 21mm (i.e., the article is of semi-elongate gauge). In some embodiments, the article 1 has a stem of aerosol-generating material greater than 19mm in circumference.
The outer circumference of the mouthpiece 2 is substantially the same as the outer circumference of the rod of aerosol-generating material 3 so that there is a smooth transition between these components. In this example, the outer circumference of the mouthpiece 2 is about 20.8mm.
In some examples, the tipping paper 5 includes a citrate salt, such as sodium citrate or potassium citrate. In such an example, the tipping paper 5 may have a citrate content of 2% by weight or less or 1% by weight or less. Reducing the citrate content of the tipping paper 5 is believed to help reduce charring effects that may occur during use.
In this example, the tipping paper 5 extends 5mm over the rod of aerosol-generating material 3, but alternatively it may extend 3mm to 10mm or 4mm to 6mm over the rod 3 to provide a secure connection between the mouthpiece 2 and the rod 3. The tipping paper 5 may have a basis weight that is higher than the basis weight of the forming paper used in the article 1, for example a basis weight of 40gsm to 80gsm or 50gsm to 70gsm, and in this example 58gsm. It has been found that these ranges of basis weights produce tipping papers that have acceptable tensile strength while being flexible enough to wrap around the article 1 and adhere to themselves along the longitudinal lap seam on the paper. Once wrapped around the mouthpiece 2, the outer circumference of the tipping paper 5 is about 21mm.
In some embodiments, the first forming paper 7 has a basis weight of less than 50gsm, for example about 20gsm to 40gsm. However, it should be appreciated that the basis weight of the first plug wrap 7 may be higher to increase the stiffness of the mouthpiece. For example, the basis weight of the first forming paper 7 may be at least 50gsm, at least 60gsm, at least 70gsm, at least 80gsm, at least 90gsm, or at least 100gsm. In some embodiments, the basis weight of the first forming paper 7 is in the range of 50gsm to 110gsm or in the range of 60gsm to 100gsm.
In some embodiments, the first forming paper 7 has a basis weight of at least 20gsm or at least 30 gsm. In some embodiments, the first forming paper 7 has a basis weight of at most 120gsm, 110gsm, or 100gsm. In some embodiments, the first forming paper 7 has a basis weight in the range of 20gsm to 120gsm or in the range of 30gsm to 100gsm.
In some embodiments, the first forming paper 7 has a thickness of 30 μm to 60 μm or 35 μm to 45 μm. It should be appreciated, however, that the thickness weight of the first forming paper 7 may be higher to increase the stiffness of the mouthpiece. In some embodiments, for example, the thickness of the first forming paper 7 may be at least 40 μm, 50 μm, 60 μm, 70 μm, 80 μm, 90 μm, or 100 μm. In some embodiments, the thickness of the first forming paper 7 is in the range of 40 μm to 120 μm or in the range of 50 μm to 100 μm.
In some embodiments, the first forming paper 7 is a non-porous forming paper, e.g., having a permeability of less than 100Coresta units, e.g., less than 50Coresta units. However, in other embodiments, the first forming paper 7 may be a porous forming paper, for example having a permeability of more than 200Coresta units.
In some embodiments, the length of the body of material 6 is less than about 20mm. In this example, the length of the body of material 6 is about 12mm.
In some embodiments, the axial length of the body of material 6 is in the range of 10mm to 20mm.
In some embodiments, the aerosol-forming material is applied to the body of material 6. For example, the aerosol-forming material may be applied to the sheet 6A before the sheet 6A is folded to form the body of material 6. The aerosol-forming material may be sprayed onto the sheet 6A or applied by a brush or by dipping the sheet 6A into the aerosol-forming material.
In some embodiments, the aerosol-forming material may comprise one or more of the following: glycerol, propylene glycol, diethylene glycol, triethylene glycol, tetraethylene glycol, 1, 3-butanediol, erythritol, meso-erythritol, ethyl vanillic acid, ethyl laurate, diethyl suberate, triethyl citrate, triacetin, diacetin mixtures, benzyl benzoate, tributyl essence, lauryl acetate, lauric acid, myristic acid, and propylene carbonate. For example, the aerosol-forming material may comprise triacetin and/or triethyl citrate.
In some embodiments, at least 0.02mg of aerosol-forming material per 1mm of the axial length of the body of material is applied to the body of material. In some embodiments, at least 0.03mg, at least 0.04mg, or at least 0.05mg of aerosol-forming material per 1mm of the axial length of the body of material is applied to the body of material.
In some embodiments, 0.5mg or less of aerosol-forming material per 1mm of the axial length of the body of material is applied to the body of material. In some embodiments, 0.4mg or less or 0.3mg or less of aerosol-forming material per 1mm of the axial length of the body of material is applied to the body of material.
At least some of the aerosol-forming material combines with the aerosol as it passes through the body of material 6 and helps to make the aerosol feel less dry in the mouth of the user.
In some embodiments, the body of material 6 has a thickness of at least 115mm 3 Is provided. In the present example, the body of material 6 is substantially cylindrical and thus has a substantially cylindrical outer volume. It should be appreciated that in other embodiments, the body of material 6 may have a thickness of less than 115mm 3 Is provided.
In the present example, the width W1 of the material body 6 (corresponding to the diameter of the material body 6 in the present example) is about 6.36mm, and the axial length L1 of the material body 6 is 12mm. Thus, the outer volume of the body 6 is approximately 381mm 3 。
It has been found that when the aerosol passes through the body of material 6A of the mouthpiece 2, it comprises cellulose and has a thickness of at least 115mm 3 The volume of material 6A of (c) assists in removing moisture from the aerosol generated by the aerosol-generating material 3. That is, the cellulose-containing sheet 6A absorbs moisture from the aerosol. Removing moisture from the aerosol may make the aerosol feel cooler in the user's mouth.
In some embodiments, the body of material 6 has an axial length of at least 19mm per millimeter of body of material 3 At least 25mm per mm axial length 3 Or alternativelyAt least 30mm per mm axial length 3 Is a volume of (c). For example, if the body 6 has an axial length of 19mm per mm 3 And a length L1 of 10mm, the volume of the body of material will be 190mm 3 。
The larger volume of material 6A is generally more effective in removing moisture from the aerosol. In some examples, the external volume of the body of material 6 is at least 200mm 3 At least 300mm 3 At least 400mm 3 At least 500mm 3 At least 600mm 3 At least 700mm 3 At least 800mm 3 At least 900mm 3 Or at least 1000mm 3 。
In some embodiments, the axial length L1 of the body of material 6 is at least 4mm, at least 5mm, at least 6mm, at least 7mm, at least 8mm, at least 9mm, or at least 10mm.
In some embodiments, the axial length L1 of the body of material 6 is in the range 5mm to 20mm, 6mm to 15mm, or 8mm to 14 mm.
In some embodiments, the width W1 of the body of material 6 is at least 4mm, at least 5mm, at least 6mm, at least 7mm, at least 8mm, or at least 9mm.
In some embodiments, the perimeter of the body of material 6 is at least 16mm, at least 18mm, at least 20mm, at least 22mm, at least 25mm, or at least 26mm.
In some embodiments, the pressure drop across the body of material 6 is at least 2mm H 2 O, at least 3mm H 2 O or at least 4mm H 2 O. The pressure drop across the body of material may be at least 5mm H 2 O, at least 6mm H 2 O, at least 7mm H 2 O, at least 8mm H 2 O, at least 9mm H 2 O, at least 10mm H 2 O or at least 11mm H 2 O。
In some embodiments, the pressure drop across the body of material 6 is less than 30mm H 2 O, less than 28mm H 2 O or less than 25mm H 2 O。
In some embodiments, the pressure drop across the body of material 6 is about 20mm H 2 O、23mm H 2 O or 28mm H 2 O。
In some embodiments, the penetrating materialThe pressure drop of the material body 6 is 10mm H 2 O to 30mm H 2 O in the range of or 15mm H 2 O to 25mm H 2 O range.
In some embodiments, the pressure drop across the body of material 6 is at least 1.0mm H per millimeter of axial length of the body of material 6 2 O. In some embodiments, the pressure drop across the body of material 6 is at least 1.2mm H per millimeter of axial length of material 6 2 O、1.5mm H 2 O or 1.8mm H 2 O。
In some embodiments, the pressure drop across the body of material 6 is such that the axial length of the body of material 6 is less than 3.0mm H 2 O、2.8mm H 2 O or 2.6mm H 2 O. In some embodiments, the pressure drop across the body of material 6 is less than 2.5mm H per millimetre of axial length of the body of material 6 2 O、2.4mm H 2 O or 2.3mm H 2 O。
In some embodiments, the pressure drop across the body of material 6 is 1.5mm H per mm of axial length of the body of material 6 2 O to 2.5mm H 2 O, or in the range of 1.6 to 2.4mmWG per millimetre of axial length of the body 6 of material.
In some embodiments, the mass of the body of material 6 is at least 50mg, at least 60mg, or at least 70mg. Advantageously, it has been found that providing a greater mass of the body of material 6 increases the amount of moisture absorbed from the aerosol. In this example, the mass of the body of material is about 75mg.
In some embodiments, the mass of the body of material 6 is less than 150mg, less than 100mg, less than 85mg, or less than 80mg.
In some embodiments, the body of material 6 has a weight of at least 2mg per millimetre of axial length of the body of material. In some embodiments, the body of material 6 has a weight of at least 3mg per millimeter of axial length or at least 4mg per millimeter of axial length.
In this example, the body of material 6 has a weight of about 6 mg/mm. That is, if the body of material 6 has an axial length L1 of 12mm (as in this example), the total mass of the body of material 6 will be about 74mg.
In some embodiments, the body of material 6 is a solid cylindrical body of material.
In some embodiments, the mouthpiece 2 has a hardness in the range of about 80% to 95% or in the range of about 85% to 90%. The hardness of the mouthpiece 2 may be at least 80%, at least 81%, at least 82%, at least 83%, at least 84%, at least 85%, at least 86%, at least 87%, at least 88%, at least 89%, at least 90%, at least 91% or at least 92%.
The hardness of the mouthpiece 2 may be measured according to the following protocol. When referring to the hardness of a part herein, the hardness is determined by the following measurement procedure. The measurement may be made using any suitable device, such as a Borgwaldt durometer H10.
Hardness is defined as the ratio between the body height h0 and the body height h1 under a defined load, expressed as a percentage of h 0. The hardness can be expressed as:
hardness= (h 1/h 0) ×100
For a body contained in a single body or a multipart rod, the hardness measurement is made at the longitudinal center point of the body.
The load bar is for applying a defined load to the body. The length of the load bar should be significantly greater than the length of the sample to be tested. The subject to be tested is conditioned according to ISO 3402 for at least 48 hours prior to hardness measurement and is maintained in an environmental condition according to ISO 3402 during measurement.
For hardness measurement, the body was put into a durometer H10, a preload of 2g was applied to the body, and an initial height H0 of the body under the preload of 2g was recorded after 1 s. The preload was then removed and the load bar bearing 150g load was lowered onto the sample at a rate of 0.6mm/s, and the height h1 of the body at 150g load was measured after 5 seconds.
The hardness of the mouthpiece is determined as the average hardness of at least 20 mouthpieces measured according to the present protocol.
The hardness of the body 6 of material (hereinafter collectively referred to as "component" for the purpose of determining the hardness) limited by the first forming paper 7 can also be determined using the above scheme by carefully cutting the article to remove the body 6 of material surrounded by the first forming paper 7. The hardness of the component may be at least 80%, at least 81%, at least 82%, at least 83%, at least 84%, at least 85%, at least 86%, at least 87%, at least 88%, at least 89%, at least 90%, at least 91%, or at least 92%.
The expression "roundness" refers to the percent of conformity of the cross-sectional shape of an article/component to a perfect circle. Roundness is calculated according to the following equation 1:
to determine the roundness of the article 1, the maximum outer diameter "X" of the assembly was measured using calipers, and the minimum outer diameter "Y" of the article (diameter perpendicular to the central axis of the article 1) was measured using calipers. The smaller the deviation between the maximum outer diameter X and the minimum outer diameter Y of the article 1, the higher the roundness, which indicates that the cross-sectional shape of the article 1 is closer to a perfect circle.
In some embodiments, the roundness of the article 1 is at least 90%, at least 91%, at least 92%, at least 93%, at least 94%, or at least 95%.
The hardness of the material body 6 (hereinafter collectively referred to as "component" for the purpose of determining roundness) limited by the first forming paper 7 can also be determined using the above scheme by carefully cutting the article to remove the material body 6 surrounded by the first forming paper 7.
In order to determine the roundness of the body of material 6 (hereinafter collectively referred to as "component" for the purpose of determining roundness) limited by the first forming paper 7, the maximum outer diameter "X" of the component is measured using a caliper, and the minimum outer diameter "Y" of the component (diameter perpendicular to the central axis of the component) is measured using a caliper. The smaller the deviation between the maximum outer diameter X and the minimum outer diameter Y of the component, the higher the roundness, which indicates that the cross-sectional shape of the component is closer to a perfect circle.
In some embodiments, the roundness of the component (i.e., the roundness of the body of material 6 bound by the first forming paper 7) is at least 90%, at least 91%, at least 92%, at least 93%, at least 94%, or at least 95%.
The increased roundness of the article/component helps ensure that the downstream portion can be machined, otherwise the too oval downstream portion may become stuck or offset in the manufacturing machine.
The first and/or second forming papers 7, 9 may be adhered around the components of the article by an adhesive applied to the lap seam extending longitudinally along the first and/or second forming papers. Alternatively or additionally, the first and/or second forming papers 7, 9 may be adhered directly to the underlying components using an adhesive. In both cases, the binder may be selected to be a water-soluble binder to aid in the degradation of the components. Additionally or alternatively, the first and/or second forming papers 7, 9 themselves may be formed of paper or other materials having improved degradability (e.g., improved dispersibility when exposed to water).
Biodegradability can be measured according to the procedure specified in ISO 14855. The components described herein can achieve greater than 50% biodegradation in 30 days when exposed to fresh or seawater.
In some embodiments, the length of the tubular portion 4a is less than about 50mm. In some embodiments, the length of the tubular portion 4a is less than about 40mm. In some embodiments, the length of the tubular portion 4a is less than about 35mm. Additionally or alternatively, the tubular portion 4a has a length of at least about 10mm. In some embodiments, the length of the tubular portion 4a is at least about 15mm.
In some embodiments, the tubular portion 4a has a length of about 15mm to about 35mm, about 20mm to about 30mm, about 23 to about 29mm, or about 25mm, or about 29mm. In this example, the tubular portion 4a has a length of 25mm.
In some embodiments, the second forming paper 9 has a basis weight of less than 50 gsm. In some embodiments, the second forming paper 9 has a basis weight of about 20gsm to 45 gsm. However, it should be appreciated that the basis weight of the second forming paper 9 may be higher to increase the hardness of the mouthpiece. For example, the basis weight of the second forming paper 9 may be at least 50gsm, at least 60gsm, at least 70gsm, at least 80gsm, at least 90gsm, or at least 100gsm. In some embodiments, the basis weight of the second forming paper 9 is in the range of 50gsm to 110gsm or in the range of 60gsm to 100gsm.
In some embodiments, the second forming paper 9 has a basis weight of at least 10gsm, at least 15gsm, at least 20gsm, or at least 25 gsm.
In some embodiments, the second forming paper 9 has a basis weight of less than 40gsm, less than 35gsm, or less than 30 gsm.
In some embodiments, the second forming paper 9 has a basis weight in the range of 10 to 40gsm, in the range of 15 to 35gsm, in the range of 20 to 30gsm, or in the range of 25 to 30 gsm. In some embodiments, the basis weight of the second forming paper 9 is about 27gsm.
In some embodiments, the second forming paper 9 has a thickness of 30 μm to 60 μm or 35 μm to 45 μm. However, it should be appreciated that the thickness of the second forming paper 9 may be higher to increase the hardness of the mouthpiece. In some embodiments, for example, the thickness of the second forming paper 9 may be at least 40 μm, at least 50 μm, at least 60 μm, at least 70 μm, at least 80 μm, at least 90 μm, or at least 100 μm. In some embodiments, the thickness of the second forming paper 9 is in the range of 40 μm to 120 μm or in the range of 50 μm to 100 μm.
In some embodiments, the second forming paper 9 is a non-porous forming paper having a permeability of less than 100Coresta units, such as less than 50Coresta units. However, in alternative embodiments, the second forming paper 9 may be a porous forming paper, for example having a permeability of more than 200Coresta units.
The mouthpiece 2 of the article 1 comprises an upstream end 3a adjacent the aerosol-generating substrate 3 and a downstream end 2b remote from the aerosol-generating substrate 3.
The pressure drop or pressure differential (also referred to as resistance to draw) across the mouthpiece (e.g., the portion of the article 1 downstream of the aerosol-generating material 3) is less than about 40mm H 2 O. It has been found that this pressure drop allows sufficient aerosol, including the desired compounds (e.g. flavour compounds), to pass through the mouthpiece 2 to the consumer. In some embodiments, the pressure drop across the mouthpiece 2 is less than about 20mm H 2 O. In some embodiments, a material having a H of less than 15mm is used 2 O (e.g. about 6mm H 2 O, about 10mm H 2 O or about 14mm H 2 O) a particularly improved aerosol is achieved by the mouthpiece 2. Alternatively or additionally, the mouthpiece pressure drop may be at least 3mm H 2 O, at least 4mm H 2 O or at least 5mm H 2 O。In some embodiments, the mouthpiece pressure drop may be about 5mm H 2 O to 20mm H 2 O or 5mm H 2 O to 15mm H 2 O. These values enable the mouthpiece 2 to slow down the aerosol as it passes through the mouthpiece 2, so that the temperature of the aerosol has time to decrease before reaching the downstream end 2b of the mouthpiece 2.
In this example, the aerosol-generating material 3 is wrapped in a wrapper 10. The wrapper 10 may be, for example, paper or a paper-backed foil wrapper. In this example, the wrapper 10 is substantially air impermeable. In alternative embodiments, the wrapper 10 has a permeability of less than 100Coresta units or less than 60Coresta units. It has been found that the use of a low permeability wrapper (e.g. having a permeability of less than 100Coresta units or less than 60Coresta units) results in an improvement of aerosol formation in the aerosol generating material 3. Without wishing to be bound by theory, it is hypothesized that this is due to the reduced loss of aerosol compounds through the wrapper 10. The permeability of the wrapper 10 may be measured according to ISO 2965:2009 with respect to determining the air permeability of the materials used as cigarette paper, filter plug wrap (filter plug paper) and filter tie paper (filter joining paper).
In this embodiment, the wrapper 10 comprises aluminum foil. Aluminum foil has been found to be particularly effective in enhancing aerosol formation within the aerosol-generating material 3. In this example, the aluminum foil has a metal layer with a thickness of about 6 μm. In this example, the aluminum foil has a paper backing. However, in alternative arrangements, the aluminium foil may be of other thickness, for example 4 μm to 16 μm thick. The aluminum foil also need not have a paper backing, but may have a backing formed of other materials, for example, to help provide the foil with proper tensile strength, or it may be free of backing material. Metal layers or foils other than aluminum may also be used. The total thickness of the wrapper is from 20 μm to 60 μm or from 30 μm to 50 μm, which can provide a wrapper with suitable structural integrity and heat transfer characteristics. The pulling force that may be applied to the wrapper before the wrapper breaks may be greater than 3,000 grams force, for example 3,000 to 10,000 grams force or 3,000 to 4,500 grams force.
In some examples, the wrapper 10 surrounding the aerosol-generating material 3 has a high level of permeability, for example greater than about 1000Coresta units, or greater than about 1500Coresta units, or greater than about 2000Coresta units. The permeability of the wrapper 10 may be measured according to ISO 2965:2009 with respect to determining the air permeability of the materials used as cigarette paper, filter plug wrap and filter tie paper.
The wrapper 10 may be formed of a material having a high inherent permeability level, an inherently porous material, or may be formed of a material having any inherent permeability level wherein the final permeability level is achieved by providing the wrapper 10 with permeable regions or zones. Providing a permeable wrapper 10 provides a path for air to enter the article. The wrapper 10 may be permeable such that the amount of air entering through the rod of aerosol-generating material is relatively greater than the amount of air entering the article through the vent 12 in the mouthpiece. Articles with this arrangement can produce a more flavored aerosol, which can be more pleasing to the user.
In some embodiments, the aerosol-generating material 3 is provided as a cylindrical rod of aerosol-generating material. Regardless of the form of the aerosol-generating material, it may have a length of about 10mm to 100 mm. In some embodiments, the length of the aerosol-generating material is in the range of about 25mm to 50mm, in the range of about 30mm to 45mm, or in the range of about 30mm to 40 mm.
The volume of aerosol-generating material 3 provided may be in the order of 200mm 3 To about 4300mm 3 About 500mm 3 Up to 1500mm 3 Or about 1000mm 3 To about 1300mm 3 And (3) a change.
The mass of aerosol-generating material 3 provided may be greater than 200mg, for example from about 200mg to 400mg, from about 230mg to 360mg or from about 250mg to 360mg.
In some embodiments, the aerosol-generating material or substrate is formed from the tobacco materials (including tobacco components) described herein.
In the tobacco materials described herein, the tobacco component can include paper reconstituted tobacco. The tobacco component may also contain tobacco leaf, extruded tobacco and/or belted tobacco (bandcast tabacco).
The aerosol-generating material 3 may comprise reconstituted tobacco material having a density of less than about 700 milligrams per cubic centimeter (mg/cc).
The tobacco material may be provided in the form of cut tobacco (cut tobacco). The cut tobacco can have a cut width of at least 15 cuts per inch (about 5.9 cuts per cm, equivalent to a cut width of about 1.7 mm). In some embodiments, the cut tobacco has a cut width of at least 18 cuts per inch (about 7.1 cuts per cm, equivalent to a cut width of about 1.4 mm) or at least 20 cuts per inch (about 7.9 cuts per cm, equivalent to a cut width of about 1.27 mm). In one example, cut tobacco has a cut width of 22 cuts/inch (about 8.7 cuts/cm, equivalent to a cut width of about 1.15 mm). The cut tobacco can have a cut width equal to or less than 40 cuts per inch (about 15.7 cuts per cm, equivalent to a cut width of about 0.64 mm). It has been found that a kerf width of 0.5mm to 2.0mm (e.g. 0.6mm to 1.5mm or 0.6mm to 1.7 mm) results in a suitable tobacco material in terms of surface area to volume ratio of the substrate 3 (especially when heated) as well as total density and pressure drop. Shredded tobacco may be formed from a mixture of various forms of tobacco material, such as a mixture of one or more of paper reconstituted tobacco, tobacco leaf, extruded tobacco, and belted tobacco. In some embodiments, the tobacco material comprises paper reconstituted tobacco or a mixture of paper reconstituted tobacco and tobacco.
In the tobacco materials described herein, the tobacco material can contain a filler component. The filler component is typically a non-tobacco component, i.e., a component that does not include tobacco-derived ingredients. The filler component may be non-tobacco fibers, such as wood fibers or pulp or wheat fibers. The filler component may also be an inorganic material such as chalk, perlite, vermiculite, diatomaceous earth, colloidal silica, magnesia, magnesium sulfate, magnesium carbonate. The filler component may also be a non-tobacco cast material (non-tobacco cast material) or a non-tobacco extruded material. The filler component may be present in an amount of 0 to 20% by weight of the tobacco material, or in an amount of 1 to 10% by weight of the composition. In some embodiments, the filler component is absent.
In the tobacco materials described herein, the tobacco material contains an aerosol-forming material. In this context, an "aerosol-forming material" is an agent that facilitates aerosol generation. The aerosol-forming material may facilitate aerosol generation by facilitating initial evaporation and/or condensation of a gas into an inhalable solid and/or liquid aerosol. In some embodiments, the aerosol-forming material may improve the delivery of flavor from the aerosol-generating material. In general, any suitable aerosol-forming material or agent may be included in the aerosol-generating material of the invention, including those described herein. Other suitable aerosol-forming materials include, but are not limited to: polyols (e.g., sorbitol, glycerol) and glycols (e.g., propylene glycol or triethylene glycol); non-polyhydric alcohols such as monohydric alcohols, high boiling hydrocarbons, acids (e.g., lactic acid), glycerol derivatives, esters (e.g., diacetin, triacetin, triethylene glycol diacetate, triethyl citrate, or myristates (including ethyl myristate and isopropyl myristate)), and aliphatic carboxylic acid esters (e.g., methyl stearate, dimethyl dodecanedioate, and dimethyl tetradecanedioate).
The aerosol-forming material may be included in any component of the tobacco material (e.g., any tobacco component) and/or in the filler component (if present). Alternatively or additionally, the aerosol-forming material may be added separately to the tobacco material. In either case, the total amount of aerosol-forming material in the tobacco material may be as defined herein.
The tobacco material may contain 10% to 90% by weight of tobacco leaf.
The tobacco materials described herein contain nicotine. The nicotine content is 0.5 to 1.75% by weight of the tobacco material and may be, for example, 0.8 to 1.5% by weight of the tobacco material. Additionally or alternatively, the tobacco material contains 10% to 90% by weight tobacco leaf (having a nicotine content of greater than 1.5% by weight tobacco leaf). Advantageously, it has been found that using tobacco leaves having a nicotine content of greater than 1.5% in combination with a lower nicotine base material (e.g., paper reconstituted tobacco) provides a tobacco material having an appropriate level of nicotine but having better organoleptic properties than paper reconstituted tobacco alone. Tobacco leaves (e.g., cut tobacco) may, for example, have a nicotine content of 1.5% to 5% by weight of the tobacco leaves.
The tobacco materials described herein may contain aerosol modifiers, such as any of the flavors described herein. In one embodiment, the tobacco material contains menthol, forming a menthol-containing article. The tobacco material may comprise 3mg to 20mg menthol, 5mg to 18mg, or 8mg to 16mg menthol. In this example, the tobacco material comprises 16mg menthol. The tobacco material may contain 2% to 8% menthol by weight, 3% to 7% menthol by weight, or 4% to 5.5% menthol by weight. In one embodiment, the tobacco material comprises 4.7% menthol by weight. Such high levels of menthol loading may be achieved using a high percentage of reconstituted tobacco material, such as greater than 50% by weight of tobacco material. Alternatively or additionally, the use of high volumes of aerosol-generating material (e.g., tobacco material) may increase achievable menthol loading levels, for example, at greater than about 500mm 3 Or suitably greater than about 1000mm 3 In the case of aerosol-generating materials of (a) aerosol-generating material (e.g. tobacco material) is used.
In the compositions described herein, when equivalent weight is given in% by weight, for the avoidance of doubt, this refers to a dry weight basis unless specifically indicated to the contrary. Thus, any water that may be present in the tobacco material or any component thereof is completely ignored for the purpose of determining weight percent. The moisture content of the tobacco materials described herein may vary and may be, for example, 5 to 15% by weight. The moisture content of the tobacco materials described herein may vary depending on, for example, the temperature, pressure, and humidity conditions maintained by the composition. The water content may be determined by Karl-Fisher analysis, as known to those skilled in the art. On the other hand, for the avoidance of doubt, even when the aerosol-forming material is a component in the liquid phase (e.g. glycerol or propylene glycol), any component other than water is included in the weight of the tobacco material. However, when the aerosol-forming material is provided in the tobacco component of the tobacco material or in the filler component of the tobacco material (if present), rather than being added to the tobacco material alone or in addition to being added to the tobacco material alone, the aerosol-forming material is not included in the weight of the tobacco component or filler component, but is included in the weight (in wt%) of the "aerosol-forming material" as defined herein. All other ingredients present in the tobacco component are included in the weight of the tobacco component, even if not of tobacco origin (e.g., non-tobacco fibers in the case of paper reconstituted tobacco).
In an embodiment, the tobacco material comprises a tobacco component as defined herein and an aerosol-forming material as defined herein. In an embodiment, the tobacco material consists essentially of a tobacco component as defined herein and an aerosol-forming material as defined herein. In an embodiment, the tobacco material consists of a tobacco component as defined herein and an aerosol-forming material as defined herein.
The paper reconstituted tobacco is present in the tobacco component of the tobacco materials described herein in an amount of 10% to 100% by weight of the tobacco component. In embodiments, the paper reconstituted tobacco is present in an amount of 10% to 80% by weight or 20% to 70% by weight of the tobacco component. In another embodiment, the tobacco component consists essentially of or consists of paper reconstituted tobacco. In some embodiments, the tobacco leaf is present in the tobacco component of the tobacco material in an amount of at least 10% by weight of the tobacco component. For example, tobacco can be present in an amount of at least 10% by weight of the tobacco component, while the remainder of the tobacco component includes paper reconstituted tobacco, tape reconstituted tobacco, or a combination of tape reconstituted tobacco and another form of tobacco (e.g., tobacco particles).
"paper reconstituted tobacco" refers to tobacco material formed by a process in which tobacco raw material is extracted with a solvent to provide a soluble extract and a residue comprising fibrous material, and then the extract (typically after concentration, and optionally after further processing) is recombined with fibrous material from the residue (typically after refining of the fibrous material, and optionally adding a portion of non-tobacco fibers) by depositing the extract onto the fibrous material. The process of recombination is similar to that of paper making.
The paper reconstituted tobacco may be any type of paper reconstituted tobacco known in the art. In certain embodiments, the paper reconstituted tobacco is made from a raw material comprising one or more of tobacco rod, and whole leaf tobacco (whole leaf tobacco). In another embodiment, the paper reconstituted tobacco is made from a tobacco rod and/or a raw material consisting of whole leaf tobacco and tobacco rod. However, in other embodiments, chaff, fines, and air may alternatively or additionally be used in the feedstock.
The paper reconstituted tobacco used in the tobacco materials described herein may be prepared by methods known to those skilled in the art for preparing paper reconstituted tobacco.
Fig. 3 is a side cross-sectional view of another article 1 'comprising a mouthpiece 2' comprising a hollow tubular element 8. The mouthpiece 2 'is substantially identical to the mouthpiece 2 described above in connection with fig. 1, except that at the downstream end 2b the mouthpiece 2' comprises a hollow tubular element 8 formed of a filiform tow. In the present example, the tubular portion 4a, the body of material 6 and the hollow tubular element 8 are combined using a second forming paper 9 wrapped around all three portions. Another article 1' may be used as a combustible sol supply system, such as a cigarette.
The material body 6 of the article 1' of fig. 3 is similar to the material body 6 described above in relation to fig. 1 and 2. As before, the body 6 is manufactured from a sheet comprising cellulose, which may be paper, for example. The sheets are gathered to form a body 6 of material.
In the present example, the axial length L1 of the body 6 is about 10mm. However, one skilled in the art will recognize that the body of material 6 may have different axial lengths L1. In some embodiments, the length L1 of the body of material 6 is less than about 20mm or less than 15mm. In some embodiments, the length L1 of the body of material 6 is less than about 10mm. Additionally or alternatively, the length L1 of the body of material 6 may be at least about 5mm. In some embodiments, the length L1 of the body of material 6 is at least about 6mm. In some embodiments, the length L1 of the body of material 6 is about 5mm to about 15mm, about 6mm to about 12mm. In some embodiments, the length L1 of the body of material is 6mm, 7mm, 8mm, 9mm, or 10mm.
The portion of the mouthpiece that contacts the consumer's lips is typically a paper tube that is hollow or a cylindrical body that surrounds the filter material. Advantageously, it has been found that providing a hollow tubular element 8 significantly reduces the temperature of the outer surface of the mouthpiece 2 'at the downstream end 2b of the mouthpiece that is in contact with the mouth of the consumer when the article 1' is in use. Furthermore, it was found that the use of the tubular portion 4a significantly reduced the temperature of the outer surface of the mouthpiece 2' even upstream of the tubular portion 4 a. Without wishing to be bound by theory, it is assumed that this is due to the tubular portion 4a guiding the aerosol closer to the centre of the mouthpiece 2 'and thus reducing the heat transfer from the aerosol to the outer surface of the mouthpiece 2'. Furthermore, it has been found that as the aerosol passes through the body of material 6A of the mouthpiece 2, the body of material 6 removes moisture from the aerosol produced by the aerosol-generating material 3, which makes the aerosol feel cooler in the mouth of the user.
In this example, the hollow tubular element 8 is formed from a filiform tow. In alternative embodiments, the hollow tubular element may be formed using any of the configurations described herein for tubular portion 4 a.
The "wall thickness" of the hollow tubular element 8 corresponds to the thickness of the wall of the tube 8 in the radial direction. This can be measured in the same way as the tubular portion. Advantageously, the wall thickness is greater than 0.9mm and may be 1.0mm or greater. In some embodiments, the wall thickness is substantially constant around the entire wall of the hollow tubular element 8. However, in case the wall thickness is not substantially constant, the wall thickness may be greater than 0.9mm, for example 1.0mm or more, at any point around the hollow tubular element 8.
The hollow tubular member 8 has a length of less than about 20mm. In some embodiments, the hollow tubular element 8 has a length of less than about 15mm. In some embodiments, the hollow tubular element 8 has a length of less than about 10mm. Additionally or alternatively, the hollow tubular element 8 may be at least about 5mm in length. In some embodiments, the hollow tubular element 8 has a length of at least about 6mm. In some embodiments, the hollow tubular element 8 has a length of about 5mm to about 20mm, about 6mm to about 10mm, or about 6mm to about 8mm. In some embodiments, the hollow tubular element 8 has a length of 6mm, 7mm or 8mm. In this example, the hollow tubular element 8 has a length of 6mm.
The hollow tubular member 8 has a density of at least about 0.25 grams per cubic centimeter (g/cc), such as at least about 0.3g/cc. In some embodiments, the hollow tubular element 8 has a density of less than about 0.75 grams per cubic centimeter (g/cc), such as less than 0.6g/cc. In some embodiments, the hollow tubular element 8 has a density of 0.25g/cc to 0.75g/cc, 0.3g/cc to 0.6g/cc, or 0.4g/cc to 0.6g/cc. In some embodiments, the hollow tubular element 8 has a density of about 0.5g/cc. These densities have been found to provide a good balance between the improved robustness provided by denser materials and the lower heat transfer properties of lower density materials. For the purposes of the present invention, the "density" of the hollow tubular element 8 refers to the density of the filiform strands forming the element with any plasticizer incorporated. The density may be determined by dividing the total weight of the hollow tubular element 8 by the total volume of the hollow tubular element 8, wherein the total volume may be calculated using appropriate measurements (e.g. using calipers) of the hollow tubular element 8. If necessary, a microscope may be used to measure the appropriate dimensions.
The filament bundles forming the hollow tubular member 8 may have a total denier of less than 45,000 (e.g., less than 42,000). This total denier has been found to allow the formation of a less dense hollow tubular element 8. In some embodiments, the total denier is at least 20,000, such as at least 25,000. In some embodiments, the filiform filament bundles forming the hollow tubular member 8 have a total denier of 25,000 to 45,000 (e.g., 35,000 to 45,000). In some embodiments, the cross-sectional shape of the filaments of the tow is "Y" shaped, although other cross-sectional shapes (e.g., an "X" shape) of the filaments may be used in other embodiments.
The filament bundles forming the hollow tubular member 8 may have a denier per filament of greater than 3. It has been found that this per filament denier allows the formation of a less dense hollow tubular element 8. In some embodiments, each filament has a denier of at least 4, such as at least 5. In some embodiments, the filament bundles forming the hollow tubular member 8 have a denier per filament of from 4 to 10 (e.g., from 4 to 9). In one example, the filiform strands forming the hollow tubular element 8 have 8Y40,000 strands formed from cellulose acetate and comprise 18% of a plasticizer (e.g., triacetin).
The hollow tubular element 8 may have an inner diameter of more than 3.0 mm. A diameter smaller than this may cause the rate of aerosol penetration through the mouthpiece 2 'into the consumer's mouth to increase beyond that required so that the aerosol becomes too hot, for example to a temperature of greater than 40 ℃ or greater than 45 ℃. In some embodiments, the hollow tubular element 8 has an inner diameter greater than 3.1mm, for example greater than 3.5mm or 3.6mm. In one embodiment, the inner diameter of the hollow tubular element 8 is about 3.9mm.
In some embodiments, the hollow tubular element 8 comprises 15% to 22% by weight of plasticizer. For cellulose acetate tow, the plasticizer may be triacetin, but other plasticizers, such as polyethylene glycol (PEG), may also be used. In some embodiments, the hollow tubular element 8 comprises 16% to 20% by weight of plasticizer, for example about 17%, about 18% or about 19% plasticizer.
In the present example, the tubular portion 4a is a first hollow tubular element and the hollow tubular element 8 is a second hollow tubular element.
In this example ventilation is provided to the tubular portion 4a, as described in relation to fig. 1. In alternative embodiments ventilation may be provided to the mouthpiece at other locations, for example to the body of material 6 or the hollow tubular element 8.
In the above example, the mouthpieces 2, 2' each comprise a single body 6 of material. In other examples, the mouthpiece 2, 2' may comprise a plurality of bodies of material. The mouthpiece 2, 2' may comprise a cavity between the bodies of material.
In some examples, the mouthpiece 2, 2' downstream of the aerosol-generating material 3 may comprise a wrapper, such as a first or second forming paper 7, 9, or tipping paper 5, which comprises an aerosol modifier or other sensory material as described herein.
In some embodiments (not shown), the mouthpiece 2, 2' may include an aerosol modifier release component operable to release an aerosol modifier. In some embodiments, the aerosol modifier release component is operable to selectively release the aerosol modifier. As mentioned above, the body of material 6 may comprise fibres having a length in the range of 2mm to 6mm, which results in the body of material 6 absorbing less of some aerosol modifier when the aerosol modifier is released from the aerosol modifier release assembly.
The aerosol modifier may be, for example, an additive or an adsorbent. The aerosol modifiers may, for example, include one or more of flavors, colorants, water, and carbon adsorbents. The aerosol modifier may be, for example, a solid, a liquid or a gel. The aerosol modifier may be in powder, wire or particulate form. The aerosol modifier may be free of filter material.
The aerosol modifier release component may be, for example, a capsule, a wire or a bead. In some embodiments, a plurality of aerosol modifier release members are provided and may include a plurality of aerosol modifier loaded carbon particles.
In some embodiments, the aerosol modifier release component comprises a wire loaded with an additive. The thread may be made of fibres such as cellulose acetate or cotton.
In some embodiments, the aerosol modified release assembly has an aerosol modifier in the range of 1mg to 20mg, for example in the range of 2mg to 15 mg.
An aerosol modifier release component, such as a capsule, may be located in the body 6. The (or each) aerosol modifier release component may be combined with, for example, the sheet 6A adhered thereto, prior to the sheet 6A being formed into the body 6.
The aerosol modifier release assembly may comprise a capsule. In some embodiments, the aerosol modifier release assembly comprises first and second capsules. The first capsule is disposed in a first portion of the aerosol-modifier-release assembly and the second capsule is disposed in a second portion of the aerosol-modifier-release assembly downstream of the first portion.
The aerosol modifier release component may comprise one or more components of the article 1. In some embodiments, the first and second capsules are disposed in the body of material 6. In one embodiment, the aerosol modifier release assembly comprises two bodies of material (not shown), wherein the first and second capsules are disposed in the first and second bodies, respectively. In some embodiments, alternatively or additionally, the aerosol modifier release assembly comprises one or more tubular elements upstream and/or downstream of the one or more bodies of material. The aerosol-generating assembly may comprise a mouthpiece 2, 2'.
In some embodiments, the second capsule is spaced apart from the first capsule by a distance of at least 7mm, measured as the distance between the centers of the first and second capsules. In some embodiments, the second capsule is spaced apart from the first capsule by a distance of at least 8mm, 9mm, or 10 mm. It has been found that increasing the distance between the first and second capsules increases the difference between the first and second temperatures.
The first capsule comprises an aerosol modifier. The second capsule contains an aerosol modifier (which may be the same as or different from the aerosol modifier of the first capsule). In some embodiments, the user may selectively rupture the first and second capsules by applying an external force to the aerosol-modifier-release assembly to release the aerosol modifier from each capsule.
Due to the difference between the first and second temperatures, the aerosol-modifying agent of the second capsule is heated to a lower temperature than the aerosol-modifying agent of the first capsule.
The aerosol modifiers of the first and second capsules may be selected based on the temperature difference. For example, the first capsule may include a first aerosol modifier having a lower vapor pressure than a second aerosol modifier of the second capsule. If both capsules are heated to the same temperature, the higher vapor pressure of the aerosol modifier of the second capsule will mean that a greater amount of the second aerosol modifier will volatilize relative to the aerosol modifier of the first capsule. However, since the second capsule is heated to a lower temperature, this effect is less pronounced, such that a more uniform amount of the aerosol modifier of the first and second capsules is volatilized when the first and second capsules respectively break.
In some embodiments, the first and second capsules have the same aerosol modification profile, which means that both capsules contain the same type and amount of aerosol modifier, such that if both capsules are heated to the same temperature and ruptured, both capsules will cause the same modification of the aerosol. However, since the first capsule is heated to a higher temperature than the second capsule, for example more aerosol modifier of the first capsule will volatilize than the modifier of the second capsule and thus will cause a significantly more modified aerosol than the second capsule. Thus, while the two capsules are identical, which may make manufacture of the aerosol modifier release assembly easier and/or cheaper, the user may decide to rupture the first capsule to cause a more significantly modified aerosol, or to rupture the second capsule to cause a less significantly modified aerosol, or to rupture both capsules to cause a maximally modified aerosol.
In some embodiments, the first and second capsules each comprise first and second aerosol modifiers. The first aerosol modifier has a lower vapor pressure than the second aerosol modifier. Thus, during use of the system for generating an aerosol, a greater proportion of the second aerosol modifier will volatilize relative to the first aerosol modifier when the second capsule breaks than when the hotter first capsule breaks. Thus, the same capsule may be used to produce a differently modified aerosol based on the position of the capsule in the first or second portion of the aerosol modifier release assembly.
In some embodiments, the (or each) capsule comprises an outer shell and an inner core.
The shell of each capsule may be solid at room temperature. The shell may comprise, consist of, or consist essentially of: alginate. However, it should be appreciated that in alternative embodiments, the shell is formed of a different material. For example, alternatively, the shell may comprise, consist of, or consist essentially of: gelatin, carrageenan or pectin. The shell may comprise, consist of, or consist essentially of: one or more of alginate, gelatin, carrageenan or pectin.
The shell of each additive capsule may be impermeable or substantially impermeable to the aerosol modifier of the core. Thus, the shell initially prevents the core reagent from escaping from the capsule. When the user wants to modify the aerosol, the shell of the capsule breaks, releasing the agent.
In some embodiments (not shown), the (or each) capsule further comprises a carrier material. The carrier material may comprise, for example, gelatin.
In some embodiments, the (or each) capsule has a diameter in the range of 1mm to 5mm or in the range of 2mm to 4 mm. In some embodiments, the (or each) capsule is about 3mm in diameter. The (or each) capsule may be substantially spherical. In other examples, other shapes and sizes of capsules may be used.
The total weight of each capsule may be in the range of about 5mg to about 50mg or in the range of about 10mg to about 30 mg. In some embodiments, each capsule has a weight of about 14 mg.
In some embodiments, one or more aerosol modifier release components are included in the body of material 6, wherein the body of material 6 is formed from a sheet having a basis weight of less than 40gsm (e.g., less than 35gsm or 30 gsm). This helps to reduce the density of the body 6 of material to compensate for the presence of the aerosol modifier release component within the body 6, which may otherwise result in an increase in the hardness of the body 6.
In some embodiments, one or more aerosol modifier release components are included in the body of material 6, wherein the body of material 6 is formed from a sheet having a width of less than 100mm (e.g., less than 90mm or 80 mm). This helps to reduce the density of the body 6 of material to compensate for the presence of the aerosol modifier release component within the body 6, which may otherwise result in an increase in the hardness of the body 6.
In some embodiments, the (or each) capsule is centered on the longitudinal axis of the mouthpiece 2.
As described above, the (or each) capsule may have a core-shell structure. That is, the encapsulation material or barrier material surrounds the core containing the aerosol modifier to form the shell. The shell structure prevents migration of the aerosol modifier during storage of the article, but allows for controlled release of the aerosol modifier (also referred to as an aerosol modifier) during use.
In some cases, the barrier material (also referred to herein as the encapsulation material) is frangible. The (or each) capsule is crushed or otherwise ruptured or ruptured by a user to release the encapsulated aerosol modification. Typically, one or more capsules are ruptured immediately prior to the initiation of heating, but the user can select when to release the aerosol modification of the capsules. The user may then choose to rupture the other capsules later (e.g. after starting heating). Once some aerosol has been released from the aerosol-generating material, the user may choose to rupture the other one of the capsules such that the remaining aerosol-generating material is modified by the aerosol-modifying agent of the other capsule. Alternatively, the user may choose to rupture multiple capsules simultaneously.
The term "rupturable capsule" refers to a capsule in which the shell can be ruptured by pressure to release the core; more specifically, when the user wants to release the core of the capsule, the shell can rupture under the pressure exerted by the user's finger.
In some cases, the barrier material is heat resistant. That is, in some cases, the barrier does not rupture, melt or otherwise fail at the temperatures reached at the capsule site during operation of the aerosol supply device. Illustratively, the capsule located at the mouthpiece may be exposed to temperatures, for example, in the range of 30 ℃ to 100 ℃, and the barrier material may continue to hold the liquid core up to at least about 50 ℃ to 120 ℃.
In other cases, the (or each) capsule releases the core composition upon heating, for example by melting the barrier material or by capsule expansion causing the barrier material to rupture.
The total weight of each capsule may range from about 1mg to about 100mg, from about 5mg to about 60mg, from about 8mg to about 50mg, from about 10mg to about 20mg, or from about 12mg to about 18 mg.
The total weight of the core formulation may range from about 2mg to about 90mg, from about 3mg to about 70mg, from about 5mg to about 25mg, from about 8mg to about 20mg, or from about 10mg to about 15 mg.
In some embodiments, the (or each) capsule comprises a core and a shell as described above. The capsules may each exhibit a crush strength of about 4.5N to about 40N, about 5N to about 30N, or about 5N to about 28N (e.g., about 9.8N to about 24.5N). When the capsules are removed from the body of material 6, the capsule fracture strength of each capsule can be measured, and the force of the capsule fracture when the capsule is pressed between two flat metal plates is measured using a load cell. A suitable measuring device is a SauterFK50 load cell with a flat head accessory that can be used to crush the capsule against a flat hard surface having a similar surface to the accessory.
The (or each) capsule may be substantially spherical and have a diameter of at least about 0.4mm, 0.6mm, 0.8mm, 1.0mm, 2.0mm, 2.5mm, 2.8mm or 3.0 mm. The (or each) capsule may be less than about 10.0mm, 8.0mm, 7.0mm, 6.0mm, 5.5mm, 5.0mm, 4.5mm, 4.0mm, 3.5mm or 3.2mm in diameter. Illustratively, the capsule diameter may range from about 0.4mm to about 10.0mm, about 0.8mm to about 6.0mm, about 2.5mm to about 5.5mm, or about 2.8mm to about 3.2mm. In some cases, the (or each) capsule may have a diameter of about 3.0 mm. These dimensions are particularly suitable for incorporating the capsules into the articles described herein.
In some embodiments, each capsule has a cross-sectional area at its maximum cross-sectional area that is less than 28%, such as less than 27% or less than 25%, of the cross-sectional area of the portion of the mouthpiece 2 in which the capsule is disposed. For example, for a spherical capsule having a diameter of 3.0mm, the maximum cross-sectional area of the capsule is 7.07mm 2 . For a mouthpiece having a circumference of 21mm as described herein, the body of material 6 has an outer circumference of 20.8mm, and the radius of the assembly will be 3.31mm (corresponding to 34.43mm 2 Cross-sectional area of (c) of the material. In this example, the capsule cross-sectional area is 20.5% of the cross-sectional area of the mouthpiece 2. As another example, if the capsule had a diameter of 3.2mm, its maximum cross-sectional area would be 8.04mm 2 . In this case the cross-sectional area of the capsule will be 23.4% of the cross-sectional area of the body of material 6. An advantage of having a capsule with a maximum cross-sectional area of less than 28% of the cross-sectional area of the portion of the mouthpiece 2 in which the capsule is disposed is that the pressure drop across the mouthpiece 2 is reduced compared to a capsule with a larger cross-sectional area and sufficient space is reserved around the capsule for the aerosol to pass without the body 6 of material being significantly removed as the aerosol passes through the mouthpiece 2Aerosol mass in amount. In some embodiments, first and second capsules are provided, which may be the same size or different sizes.
Fig. 4 is a side cross-sectional view of another article 1 "comprising a mouthpiece 2". The mouthpiece 2 "is substantially the same as the mouthpiece 2 described above with respect to figures 1 and 2. The difference is that the body 6 of material of the article 1 "is located upstream of the tubular portion 4 a. Another article 1 "may be used as a combustible sol supply system, such as a cigarette.
In this example, the tubular portion 4a and the body of material 6 are combined using a second forming paper 9 wrapped around both portions.
The material body 6 of the article 1 "of fig. 4 is similar to the material body 6 described above in relation to fig. 1-3. As before, the body 6 is manufactured from a sheet comprising cellulose (for example the sheet may be paper). The sheets are gathered to form a body 6 of material.
A body of material 6 is provided at the upstream end 2a of the mouthpiece 2'. The body of material 6 is adjacent to the aerosol-generating material 3.
The tubular portion 4a is provided at the downstream end 2b of the mouthpiece 2", so that a cavity is formed at the downstream end 2 b. The tubular portion 4a is located downstream of the body 6. In this example, the tubular portion 4a is immediately adjacent to the body of material 6.
The tubular portion 4a has an axial length L2 of at least 20mm (e.g. at least 22 mm). In the present example, the axial length L2 of the tubular portion 4a is about 25mm.
It has been found that a tube having an axial length L2 of at least 20mm results in significant cooling of the aerosol as it passes through the tubular portion 4 a. Further, as described above, the cellulose-containing sheet of the material body 6 absorbs moisture from the aerosol. Removing the moisture from the aerosol may make the aerosol feel cooler in the user's mouth.
In some embodiments, the tubular portion 4a includes one or more vents that also aid in cooling of the aerosol.
In some embodiments, the tubular portion 4a is made of paper.
Fig. 5 is a side cross-sectional view of another article 1 '"comprising a mouthpiece 2'". The mouthpiece 2' "is substantially identical to the mouthpiece 2 described above with respect to figures 1 and 2. Except that the mouthpiece 2' "further comprises a tubular element 20 within the body of material 6. Another article 1' "may be used as a combustible sol supply system, such as a cigarette.
In this example, the tubular portion 4a and the body of material 6 are combined using a second forming paper 9 wrapped around both portions.
The material body 6 of the article 1' "of fig. 5 is similar to the material body 6 described above with respect to fig. 1-3. As before, the body 6 is manufactured from a sheet comprising cellulose (for example the sheet may be paper). The sheets are gathered to form a body 6 of material.
The tubular element 20 may be, for example, a paper or plastic tube arranged within the body 6. The tubular element 20 forms a cavity 21 within the body of material 6. Optionally, the tubular element 20 is positioned substantially radially centred within the body of material 6.
In this example, the cavity 21 extends to the downstream end 2b of the mouthpiece 2' ".
In the present example, the axial length L1 of the body 6 is about 10mm. However, one skilled in the art will recognize that the body of material 6 may have different axial lengths L1. In some embodiments, the length L1 of the body of material 6 is less than about 15mm. In some embodiments, the length L1 of the body of material 6 is less than about 10mm. Additionally or alternatively, the length L1 of the body of material 6 may be at least about 5mm. In some embodiments, the length L1 of the body of material 6 is at least about 6mm. In some embodiments, the length L1 of the body of material 6 is about 5mm to about 15mm, about 6mm to about 12mm, or about 6mm to about 12mm. In some embodiments, the length L1 of the body of material 6 is 6mm, 7mm, 8mm, 9mm or 10mm.
In some embodiments, the tubular element 20 has an axial length L3 of at least 4mm (e.g., a length of about 5 mm).
The cavity 21 has been found to promote cooling of the aerosol. It has been found that the portion 6b of the body of material 6 surrounding the tubular element 21 effectively insulates the lips of the user from the heat of the aerosol. For example, in embodiments in which the body of material 6 is made from sheets disposed in the body of material, it is believed that the multi-layered sheets of the body of material 6 help to isolate the lips of the user from the heat of the aerosol. In some embodiments, there may optionally be gaps, such as air gaps, between the sheet layers that contribute to the insulating effect.
Moreover, the body 6 may be more readily biodegradable than a construction in which a cellulose acetate tubular portion is provided at the downstream end 2b of the mouthpiece.
The body of material 6 may be manufactured from a multi-length rod 22, which in this example is a four-length rod, as shown in fig. 6. The rod is cut along line C-C to form individual bodies 6 of material, each comprising a tubular element 20 with a respective cavity 21.
The various embodiments described herein are presented solely to aid in the understanding and teaching of the claimed features. These embodiments are provided as representative examples of embodiments only, and are not exhaustive and/or exclusive. It is to be understood that the advantages, embodiments, examples, functions, features, structures and/or other aspects described herein are not to be taken as limiting the scope of the invention, which is defined by the claims, or the equivalents of the claims, and that other embodiments may be utilized and modifications may be made without departing from the scope of the claimed invention. Various embodiments of the invention may suitably comprise, consist of, or consist essentially of: suitable combinations of the disclosed elements, components, features, parts, steps, means, etc. other than those specifically described herein. Furthermore, the present disclosure may include other inventions not presently claimed but that may be claimed in the future.

Claims (40)

1. An assembly for use in or as an article for use in a combustible sol supply system, the assembly comprising:
a body of material extending in a longitudinal direction, wherein the body of material comprises a curled sheet formed with a curl pattern comprising a series of substantially parallel ridges and grooves, wherein an average spacing between adjacent ridges is greater than about 0.3mm, and wherein the body of material has an average density of about 0.1 to about 0.25mg/mm 3 。
2. The assembly of claim 1, wherein the crimp amplitude is less than about 0.7mm.
3. An assembly for use in or as an article for use in a combustible sol supply system, the assembly comprising:
a body of material extending in a longitudinal direction, wherein the body of material comprises a curled sheet formed with a curl pattern comprising a series of substantially parallel ridges and grooves, wherein the curl amplitude is less than about 0.7mm, and wherein the body of material has an average density of about 0.1 to about 0.25mg/mm 3 。
4. The assembly of any one of claims 1 to 3, wherein an average spacing between adjacent ridges is greater than about 0.4mm, greater than about 0.5mm, or greater than about 0.6mm.
5. The assembly of any one of claims 1-4, wherein the body of material comprises crimped fibers having a crimp amplitude of less than about 600 μιη, less than about 500 μιη, or less than about 400 μιη.
6. The assembly of any one of claims 1 to 5, wherein the body of material has about 0.15mg/mm 3 To about 0.2mg/mm 3 Or about 0.17mg/mm 3 To about 0.2mg/mm 3 Is a density of (3).
7. The assembly of any one of claims 1 to 6, wherein the body of material has a thickness of at least 100mm 3 At least 115mm 3 At least 150mm 3 At least 200mm 3 At least 300mm 3 At least 400mm 3 At least 500mm 3 At least 600mm 3 At least 700mm 3 At least 800mm 3 At least 900mm 3 Or at least 1000mm 3 Is a volume of (c).
8. The assembly of any one of claims 1 to 7, wherein the body of material has the body of material per millimeterIs at least 19mm in axial length 3 At least 25mm of axial length of the body per mm 3 Or at least 30mm per mm of axial length of the body of material 3 Is a volume of (c).
9. The assembly of any one of claims 1 to 8, wherein the body of material has a weight of at least 4mg per millimeter of the axial length of the body of material, at least 5mg per millimeter of the axial length of the body of material, or at least 6mg per millimeter of the axial length of the body of material.
10. The assembly of any one of claims 1 to 9, wherein the body of material is substantially cylindrical.
11. The assembly of any one of claims 1 to 10, wherein the body of material is wrapped in a forming paper having a wet tensile strength of less than 1N/15mm paper width.
12. The assembly of any one of claims 1 to 11, wherein the sheet has at least 20g/m 2 Or at least 22g/m 2 Or at least 24g/m 2 Is based on the weight of the substrate.
13. The assembly of claim 12, wherein the sheet has less than 50g/m 2 Less than 45g/m 2 Or less than 40g/m 2 Is based on the weight of the substrate.
14. The assembly of any one of claims 1 to 13, wherein the sheet has an extension width of 120mm to 200mm or 150mm to 200 mm.
15. The assembly of any one of claims 1 to 14, wherein the sheet comprises paper.
16. The assembly of any one of claims 1 to 14, wherein the sheet comprises reconstituted tobacco.
17. The assembly of any one of claims 1 to 16, wherein the closed pressure drop across the body of material is at least 1.0mm H per millimeter of longitudinal length 2 O, or at least 1.2mm H per mm longitudinal length 2 O, or at least 1.5mm H per mm longitudinal length 2 O。
18. The assembly of any one of claims 1 to 17, wherein the closed pressure drop across the body of material is less than 3mm H per millimeter of longitudinal length 2 O, or a longitudinal length per mm of less than 2.8mm H 2 O, or a longitudinal length per mm of less than 2.5mm H 2 O。
19. The assembly of any one of claims 1 to 18, wherein the body of material has an axial length of at least 4mm, at least 5mm, at least 6mm, at least 7mm, at least 8mm, at least 9mm, at least 10mm, or about 6mm to about 15 mm.
20. The assembly of claim 19, wherein the body of material has an axial length of about 12 mm.
21. The assembly of any one of claims 1 to 20, wherein the body of material has a perimeter of at least 16mm, at least 18mm, or at least 20 mm.
22. The assembly of any one of claims 1 to 21, further comprising an aerosol modifier disposed within the body of material.
23. The assembly of claim 22, further comprising an aerosol modifier release assembly comprising the aerosol modifier.
24. The assembly of claim 23, wherein the aerosol modifier release assembly comprises a capsule.
25. The assembly of claim 24, wherein the capsule comprises a solid shell and a liquid core, the liquid core comprising the aerosol modifier.
26. The assembly of any one of claims 1 to 25, further comprising applying an aerosol-forming material to the body of material.
27. The assembly of claim 26, wherein the aerosol-forming material comprises one or more of: glycerol, propylene glycol, diethylene glycol, triethylene glycol, tetraethylene glycol, 1, 3-butanediol, erythritol, meso-erythritol, ethyl vanillic acid, ethyl laurate, diethyl suberate, triethyl citrate, triacetin, diacetin mixtures, benzyl benzoate, tributyl essence, lauryl acetate, lauric acid, myristic acid, and propylene carbonate.
28. The assembly of claim 27, wherein the aerosol-forming material comprises triethyl citrate or triacetin.
29. An assembly according to claim 27 or 28, wherein at least 0.02mg, 0.03mg, 0.04mg or 0.05mg of the aerosol-forming material is applied to the body of material per 1mm of the axial length of the body of material.
30. The assembly of any one of claims 27 to 29, wherein 0.5mg or less, 0.45mg or less, 0.4mg or less, 0.35mg or less, or 0.3mg or less of the aerosol-forming material is applied to the body of material per 1mm of the axial length of the body of material.
31. The assembly of any one of claims 1 to 30, comprising a tubular element within the body of material, the tubular element comprising a cavity.
32. The assembly of claim 31, wherein the tubular element comprises paper.
33. The assembly of any one of claims 1 to 32, wherein the assembly is wrapped with a material having a weight of greater than 40g/m 2 And/or a thickness of greater than 35 μm.
34. The assembly of any one of claims 1 to 33, wherein the sheet comprises fibers having an average length in the range of 2mm to 6mm, 2mm to 5mm, 2mm to 4mm, or 2mm to 3 mm.
35. The assembly of any one of claims 1 to 34, wherein the sheet comprises a thickness of about 50 to about 100 μιη or about 60 to about 90 μιη.
36. An article for use in or as a combustible sol supply system, the article comprising an aerosol generating material and a downstream portion downstream of the aerosol generating material, the downstream portion comprising an assembly according to any one of claims 1 to 35.
37. A combustible sol supply system comprising the article of claim 36.
38. The combustible sol supply system of claim 37, wherein the combustible sol supply system is a cigarette.
39. A method for forming an assembly of articles for use in a combustible sol supply system, the method comprising:
applying a curl pattern to the sheet, the curl pattern comprising a series of substantially parallel ridges and grooves, wherein the average spacing between adjacent ridges is greater than about 0.3mm; and
forming the sheet into a body of material, wherein the body of material has an average density of about 0.1 to about 0.25mg/mm 3 。
40. A method for forming an assembly of articles for use in a combustible sol supply system, the method comprising:
applying a curl pattern to the sheet, the curl pattern comprising a series of substantially parallel ridges and grooves, wherein the curl amplitude is less than about 0.7mm; and
forming the sheet into a body of material, wherein the body of material has an average density of about 0.1 to about 0.25mg/mm 3 。
CN202280024708.3A 2021-03-15 2022-03-15 Assembly for an article for use in an aerosol provision system Pending CN117098469A (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GB2103576.1 2021-03-15
GB2109120.2 2021-06-24
GBGB2109120.2A GB202109120D0 (en) 2021-03-15 2021-06-24 A component for an article for use in an aerosol provision system
PCT/GB2022/050663 WO2022195274A1 (en) 2021-03-15 2022-03-15 A component for an article for use in an aerosol provision system

Publications (1)

Publication Number Publication Date
CN117098469A true CN117098469A (en) 2023-11-21

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202280024708.3A Pending CN117098469A (en) 2021-03-15 2022-03-15 Assembly for an article for use in an aerosol provision system

Country Status (1)

Country Link
CN (1) CN117098469A (en)

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