Article for use in non-combustible aerosol provision system

Abstract

To provide an article (and a method of manufacturing an article) for use with a non-combustible aerosol provision system.SOLUTION: An article 1 may comprise a rod 10 of aerosol generating material and a hollow tube 12 in axial alignment with the rod of aerosol generating material. The hollow tube may have a weight less than 8.5 mg / mm in an axial direction. The hollow tube may comprise a plurality of layers of a sheet material. The hollow tube may be provided adjacent to and in abutment with the rod of aerosol generating material, wherein the hollow tube has a length in an axial direction of 5 mm or less.SELECTED DRAWING: Figure 1a

Description

[Technical Field]

[0001] The present invention relates to articles for use in non-combustion aerosol delivery systems, non-combustion aerosol delivery systems including the articles, and methods of making articles for use in non-combustion aerosol delivery systems. [Background technology]

[0002] Some tobacco industry products generate aerosols during use, which are inhaled by the user. For example, tobacco heating devices heat an aerosol-generating substrate, such as tobacco, to form an aerosol, but do so by heating the substrate rather than burning it. Such tobacco industry products typically include one or more hollow tubes, for example within a mouthpiece, through which the aerosol passes to reach the user's mouth. Summary of the Invention

[0003] According to a first aspect, the present disclosure provides an article for use with a non-combustible aerosol delivery system, comprising a rod of aerosol-forming material and a hollow tube axially aligned with the rod of aerosol-forming material, wherein the hollow tube has a weight of less than 8.5 mg / mm in the axial direction.

[0004] According to a second aspect, the present disclosure provides an article for use with an aerosol delivery system, comprising: a rod of aerosol-generating material; and a hollow tube axially aligned with the rod of aerosol-generating material, the hollow tube comprising multiple layers of sheet material having a basis weight of less than 90 GSM.

[0005] According to a third aspect, the present disclosure provides an article for use with a non-combustible aerosol delivery system, comprising: a rod of aerosol-forming material; and a hollow tube axially aligned with the rod of aerosol-forming material, the hollow tube comprising multiple layers of sheet material, and wherein the weight per unit length of the hollow tube in the axial direction is less than 4 mg / mm.

[0006] According to a fourth aspect, the present disclosure provides an article for use with a non-combustible aerosol delivery system, comprising: a rod of aerosol-generating material configured to generate an aerosol when heated during use; and a hollow tube axially aligned with the rod of aerosol-generating material and disposed adjacent to and abutting the rod of aerosol-generating material, wherein the axial length of the hollow tube is 5 mm or less.

[0007] According to a fifth aspect, the present disclosure provides an article for use in a non-combustible aerosol delivery system, comprising: a mouthpiece including a filter plug and a hollow tube at an oral end of the mouthpiece, and a tubular cooling section upstream of the filter segment, wherein the filter plug is surrounded by a layer of sheet material to form a covered cylinder, the layer of sheet material extending longitudinally beyond a downstream edge of the filter plug to form the hollow tube at the oral end of the mouthpiece, and the sheet material extending longitudinally beyond an upstream edge of the filter plug to form the tubular cooling section upstream of the filter segment; and a rod of aerosol-forming material connected to the mouthpiece by tipping paper that surrounds the cooling section and the rod of aerosol-forming material.

[0008] According to a sixth aspect, the present specification provides a method of manufacturing an article for use in a non-combustion aerosol delivery system, comprising the steps of: forming a mouthpiece by covering a filter plug with a layer of sheet material to form a covered cylinder, the layer of sheet material extending longitudinally beyond the downstream edge of the filter plug to form a first hollow tube at the oral end of the mouthpiece, and the layer of sheet material extending longitudinally beyond the upstream edge of the filter segment to form a tubular cooling section upstream of the filter segment; and connecting the mouthpiece to a rod of aerosol-forming material with tipping paper that surrounds the cooling section and the rod of aerosol-forming material.

[0009] Embodiments will now be described, by way of example only, with reference to the accompanying drawings, in which: [Brief explanation of the drawings]

[0010] [Figure 1a] FIG. 1 is a side cross-sectional view of an article for use with a non-combustible aerosol delivery system according to an embodiment of the present disclosure, the article including a hollow tube at a mouth end of the article and a cooling section. [Figure 1b] FIG. 1b shows the article of FIG. 1a additionally including a capsule. [Figure 2] FIG. 1 is a side cross-sectional view of an article for use with a non-combustible aerosol delivery system according to an embodiment of the present disclosure, the article including a cellulose acetate tube within a cooling section. [Figure 3] FIG. 1 is a cross-sectional side view of an article for use with a non-combustible aerosol delivery system according to an embodiment of the present disclosure, the article including a cooling section including a hollow tube. [Figure 4a] FIG. 1 is a side cross-sectional view of an article for use with a non-combustible aerosol delivery system according to an embodiment of the present disclosure, the article including a concave mouthpiece and a cooling section formed with a plug wrap. [Figure 4b] FIG. 1 is a side cross-sectional view of an article for use with a non-combustible aerosol delivery system according to an embodiment of the present disclosure, the article including a concave mouthpiece formed with a plug jacket and a hollow tube positioned within a cooling section. [Figure 4c] FIG. 1 is a side cross-sectional view of an article for use with a non-combustible aerosol delivery system according to an embodiment of the present disclosure, the article including a concave mouthpiece formed with a plug jacket and a hollow tube positioned within a cooling section. [Figure 5a] 4b is a schematic illustration of a manufacturing method for producing the article according to FIG. 4a. [Figure 5b] 4b is a schematic illustration of a manufacturing method for producing the article according to FIG. 4b. [Figure 6]1 is a flowchart illustrating steps in a method for manufacturing an article for use with a non-combustible aerosol delivery system. [Figure 7a] FIG. 1 is a schematic diagram for manufacturing an article for use with a non-combustible aerosol delivery system. [Figure 7b] FIG. 1 is a schematic diagram for manufacturing an article for use with a non-combustible aerosol delivery system. [Figure 8] 4 is a table showing properties of tubing suitable for use in the article of FIG. 1, FIG. 2, or FIG. 3. DETAILED DESCRIPTION OF THE INVENTION

[0011] As used herein, the term "delivery system" is intended to encompass systems that deliver at least one substance to a user, including: Combustible aerosol delivery systems, such as cigarettes, cigarillos, cigars, and tobacco for pipes or for hand-rolled or handmade cigarettes, whether based on tobacco, tobacco derivatives, expanded tobacco, reconstituted tobacco, tobacco substitutes, or other smoking materials; Non-combustion aerosol delivery systems that release compounds from aerosol-forming materials without burning the aerosol-forming materials, such as hybrid systems for generating aerosols using a combination of e-cigarettes, tobacco heating products, and aerosol-forming materials; and Aerosol-free delivery systems that deliver at least one substance orally, nasally, transdermally, or otherwise to a user without forming an aerosol, including, but not limited to, oral products such as lozenges, gums, patches, articles containing inhalable powders, and oral tobacco products including snus or moist snuff, where the at least one substance may or may not contain nicotine.

[0012] According to this disclosure, a "non-combustible" aerosol delivery system is one in which the aerosol-forming materials that are components of the aerosol delivery system (or its components) are not combusted or burned to facilitate delivery of at least one substance to a user.

[0013] In some embodiments, the delivery system is a non-combustion aerosol delivery system, such as an electrically powered non-combustion aerosol delivery system.

[0014] In some embodiments, the non-combustible aerosol delivery system is an e-cigarette, also known as a vaping device or electronic nicotine delivery system (END), although it is noted that the presence of nicotine in the aerosol-generating material is not a requirement.

[0015] In some embodiments, the non-combustion aerosol delivery system is an aerosol-generating material heating system, also known as a non-combustion heating system. An example of a system is a tobacco heating system.

[0016] In some embodiments, the non-combustion aerosol delivery system is a hybrid system for generating aerosol using a combination of multiple aerosol-generating materials, one or more of which may be heated. Each of the aerosol-generating materials may be, for example, in solid, liquid, or gel form, and may or may not contain nicotine. In some embodiments, the hybrid system includes a liquid or gel aerosol-generating material and a solid aerosol-generating material. The solid aerosol-generating material may include, for example, tobacco or a non-tobacco product.

[0017] Generally, a non-combustible aerosol delivery system may include a non-combustible aerosol delivery device and a consumable item for use with the non-combustible aerosol delivery device.

[0018] In some embodiments, the present disclosure relates to consumables, sometimes referred to as articles throughout this disclosure, that comprise aerosol-generating materials and are configured for use with non-combustible aerosol delivery devices.

[0019] As used herein, the terms "upstream" and "downstream" are relative terms defined in relation to the direction of the mainstream aerosol being drawn through the article or device in use.

[0020] In some embodiments, the non-combustion aerosol delivery system, e.g., the non-combustion aerosol delivery device, may include a power source and a controller. The power source may be, for example, an electrical power source or a heat-generating power source. In some embodiments, the heat-generating power source includes a carbon substrate that can be energized to deliver power in the form of heat to the aerosol-generating material or to a heat transfer material in proximity to the heat-generating power source.

[0021] In some embodiments, the non-combustible aerosol delivery system comprises a consumable receiving area, an aerosol generator, an aerosol generating area, a housing, a mouthpiece, a filter, and / or an aerosol modifier.

[0022] In some embodiments, consumables used with the non-combustible aerosol delivery device may include an aerosol-generating material, an aerosol-generating material storage area, an aerosol-generating material transfer component, an aerosol generator, an aerosol-generating area, a housing, a wrapper, a filter, a mouthpiece, and / or an aerosol modifier.

[0023] In some embodiments, the consumable product includes a substance to be delivered. The substance to be delivered may be an aerosol-generating material or a material not intended to be aerosolized. Optionally, either material may include one or more active ingredients, one or more flavorings, one or more aerosol-former materials, and / or one or more other functional materials.

[0024] In some embodiments, the substance to be delivered comprises an active agent.

[0025] As used herein, an active substance may be a physiologically active substance, which is a substance intended to achieve or enhance a physiological response. The active substance may be selected from, for example, functional foods, nootropics, and psychotropic drugs. The active substance may be naturally occurring or synthetically obtained. The active substance may include, for example, nicotine, caffeine, taurine, theine, vitamins such as B6, B12, or C, melatonin, cannabinoids, or components, derivatives, or combinations thereof. The active substance may include one or more components, derivatives, or extracts of tobacco, cannabis, or another botanical material.

[0026] In some embodiments, the active agent comprises nicotine, hi some embodiments, the active agent comprises caffeine, melatonin, or vitamin B12.

[0027] As noted herein, the active substance may include or be derived from one or more botanical substances, or components, derivatives, or extracts thereof. As used herein, the term "botanical substance" includes any material derived from a plant, including, but not limited to, extracts, leaves, bark, fiber, stems, roots, seeds, flowers, fruits, pollen, husks, pods, and the like. Alternatively, the material may include active compounds naturally occurring in plants or obtained synthetically. The material may be in the form of a liquid, gas, solid, powder, dust, comminuted particles, granules, pellets, chips, strips, sheets, and the like. For example, botanical substances include tobacco, eucalyptus, star anise, hemp, cocoa, cannabis, fennel, lemongrass, peppermint, spearmint, rooibos, chamomile, flax, ginger, ginkgo, hazel, hibiscus, laurel, licorice, matcha, yerba mate, orange peel, papaya, rose, sage, tea such as green tea or black tea, thyme, cloves, cinnamon, coffee, aniseed, basil, bay leaf, cardamom, coriander, cumin, nutmeg, oregano, paprika, rosemary, and saffron. , lavender, lemon peel, mint, juniper, elderflower, vanilla, wintergreen, shiso, curcuma, turmeric, sandalwood, cilantro, bergamot, orange blossom, myrtle, blackcurrant, valerian, pimento, mace, damien, marjoram, olive, lemon balm, lemon basil, chives, carvi, verbena, tarragon, geranium, mulberry, ginseng, theanine, theacrine, maca, ashwagandha, damiana, guarana, chlorophyll, baobab, or any combination thereof.Mint can be selected from the following mint varieties: Mentha arventis, Mentha cv, Mentha niliaca, Mentha piperita, Mentha piperita citrata cv, Mentha piperita cv, Mentha spicata crispa, Mentha cardifolia, Mentha longifolia, Mentha suaveolens variegata, Mentha pulegium, Mentha spicata cv, and Mentha suaveolens.

[0028] In some embodiments, the active agent comprises or is derived from one or more botanical substances, or components, derivatives, or extracts thereof, and the botanical substance is tobacco.

[0029] In some embodiments, the active agent comprises or is derived from one or more botanical substances, or components, derivatives, or extracts thereof, and the botanical substances are selected from eucalyptus, star anise, cocoa, and hemp.

[0030] In some embodiments, the active agent comprises or is derived from one or more botanical substances, or components, derivatives, or extracts thereof, and the botanical substances are selected from rooibos and fennel.

[0031] In some embodiments, the substance to be delivered comprises a fragrance.

[0032] As used herein, the terms "flavor," "flavoring," and "flavoring agent" refer to materials that can be used to produce a desired taste, odor, or other somatic sensation in products for adult consumers, to the extent permitted by local regulations.These include naturally occurring flavoring materials, botanicals, extracts of botanicals, synthetically derived materials, or combinations thereof (e.g., tobacco, cannabis, licorice, hydrangea, eugenol, magnolia leaf, chamomile, fenugreek, clove, maple, matcha, menthol, Japanese mint, aniseed (aniseed), cinnamon, turmeric, Indian spices, Asian spices, herbs, wintergreen, cherry, berry, red berry, cranberry, peach, apple, orange, mango, clementine, lemon, lime, tropical, etc.). Fruits, papaya, rhubarb, grapes, durian, dragon fruit, cucumber, blueberry, mulberry, citrus fruits, Drambuie, bourbon, scotch, whiskey, gin, tequila, rum, spearmint, peppermint, lavender, aloe vera, cardamom, celery, cascarilla, nutmeg, sandalwood, bergamot, geranium, khat, naswar, betel nut, shisha, pine, honey essence, rose oil, vanilla, lemon oil, orange oil, orange blossom, cherry blossom, cassia, caraway, cognac, jasmine, Ylang-ylang, sage, fennel, wasabi, bell pepper, ginger, coriander, coffee, hemp, peppermint oil from any species of the genus Mentha, eucalyptus, star anise, cocoa, lemongrass, rooibos, flax, ginkgo, hazel, hibiscus, laurel, yerba mate, orange peel, rose, tea such as green tea or black tea, thyme, juniper, elderflower, basil, bay leaf, cumin, oregano, paprika, rosemary, saffron, lemon peel, mint, shiso, curcuma, cilantro, myrtle, black currant, valerian, pimento, mace, da The additives may include other additives such as spices, spice blends, flavor enhancers, bitter taste receptor site blockers, sensory receptor site activators or stimulants, sugars and / or sugar substitutes (e.g., sucralose, acesulfame potassium, aspartame, saccharin, cyclamate, lactose, sucrose, glucose, fructose, sorbitol, or mannitol), and other additives such as charcoal, chlorophyll, minerals, botanicals, or breath fresheners.They may be of imitation, synthetic or natural origin, or mixtures thereof. They may be in any suitable form, for example a liquid such as an oil, a solid such as a powder, or a gas.

[0033] In some embodiments, the flavoring comprises menthol, spearmint, and / or peppermint. In some embodiments, the flavoring comprises cucumber, blueberry, citrus, and / or red berry flavoring ingredients. In some embodiments, the flavoring comprises eugenol. In some embodiments, the flavoring comprises flavoring ingredients extracted from tobacco. In some embodiments, the flavoring comprises flavoring ingredients extracted from cannabis.

[0034] In some embodiments, the fragrance may include sensates intended to produce somatic sensations typically chemically induced and perceived by stimulation of the fifth cranial nerve (trigeminal nerve) in addition to or instead of the aroma or gustatory nerves, and these may include agents that provide a warming, cooling, tingling, or numbing effect. Suitable heating agents may be, but are not limited to, vanillyl ethyl ether, and suitable cooling agents may be, but are not limited to, eucalyptol, WS-3.

[0035] An aerosol-generating material is a material that can generate an aerosol when subjected to energy, for example, by heating, radiation, or some other means. The aerosol-generating material can be in the form of a solid, liquid, or gel, which may or may not contain active substances and / or flavorings. The aerosol-generating material can be incorporated into an article for use in an aerosol-generating system.

[0036] As used herein, the term "tobacco material" refers to any material containing tobacco or its derivatives or substitutes. The tobacco material may be in any suitable form. The term "tobacco material" may include one or more of tobacco, tobacco derivatives, expanded tobacco, reconstituted tobacco, or tobacco substitutes. The tobacco material may include one or more of ground tobacco, tobacco fiber, cut tobacco, extruded tobacco, tobacco stem, tobacco blade, reconstituted tobacco, and / or tobacco extract.

[0037] A consumable is an article containing or consisting of an aerosol-forming material, intended to be consumed, in part or in whole, by a user during use. A consumable may include one or more other components, such as an aerosol-forming material storage area, an aerosol-forming material transfer component, an aerosol-generating area, a housing, a wrapper, a mouthpiece, a filter, and / or an aerosol modifier. A consumable may also include an aerosol generator, e.g., a heater, that generates heat to cause the aerosol-generating material to generate an aerosol upon use. A heater may include, for example, a combustible material, a material heatable by electrical conduction, or a susceptor.

[0038] A susceptor is a material that can be heated by the penetration of a changing magnetic field, such as an alternating magnetic field. The susceptor may be a conductive material, in which case the penetration of the changing magnetic field into the susceptor causes inductive heating of the heating material. The heating material may be a magnetic material, in which case the penetration of the changing magnetic field into the susceptor causes magnetic hysteresis heating of the heating material. The susceptor may be both conductive and magnetic, in which case the susceptor can be heated by either heating mechanism. As used herein, a device configured to generate a changing magnetic field is referred to as a magnetic field generator.

[0039] An aerosol modifier is a substance, typically positioned downstream of the aerosol-generation area, configured to modify the generated aerosol, for example, by changing the taste, flavor, acidity, or another characteristic of the aerosol. The aerosol modifier may be provided in an aerosol modifier-releasing component operable to selectively release the aerosol modifier.

[0040] The aerosol modifier may be, for example, an additive or an adsorbent. The aerosol modifier may include, for example, one or more of a flavoring agent, a colorant, water, and a carbon adsorbent. The aerosol modifier may be, for example, a solid, a liquid, or a gel. The aerosol modifier may be in the form of a powder, string, or granules. The aerosol modifier may not include a filtration material.

[0041] An aerosol generator is a device configured to generate an aerosol from an aerosol-generating material. In some embodiments, the aerosol generator is a heater configured to subject the aerosol-generating material to thermal energy to release one or more volatiles from the aerosol-generating material and form an aerosol. In some embodiments, the aerosol generator is configured to generate an aerosol from the aerosol-generating material without heating. For example, the aerosol generator may be configured to subject the aerosol-generating material to one or more of vibration, high pressure, and electrostatic energy.

[0042] The filament tow materials described herein can include cellulose acetate fiber tow. The filament tow can also be formed using other materials used to form fibers, such as polyvinyl alcohol (PVOH), polylactic acid (PLA), polycaprolactone (PCL), poly(1-4 butanediol succinate) (PBS), poly(butylene adipate-co-terephthalate) (PBAT), starch-based materials, cotton, aliphatic polyester materials, polysaccharide polymers, or combinations thereof. The filament tow can be plasticized with a plasticizer appropriate for the tow, such as triacetin if the material is cellulose acetate tow, or the tow can be unplasticized. The tow can have any suitable specifications, such as fibers having a "Y" or other, e.g., "X" shaped cross section, a filamentary denier value of 2.5 to 15 denier per filament, e.g., 8.0 to 11.0 denier per filament, and a total denier value of 5,000 to 50,000, e.g., 10,000 to 40,000.

[0043] In the figures described herein, like reference numerals are used to describe equivalent features, items or components.

[0044] According to embodiments herein, Figures 1-4 illustrate articles for use in systems such as non-combustion aerosol delivery systems, the articles including components that have reduced weight compared to conventional articles for use in non-combustion aerosol delivery systems. Reducing the weight of the components can reduce the overall waste remaining after use of the article. Reducing the amount of waste material remaining after use of the article can result in improved biodegradability of the article.

[0045] Certain embodiments herein relate to an article for use with a non-combustible aerosol delivery device, the article comprising a rod of aerosol-forming material and a hollow tube axially aligned with the rod of aerosol-forming material, the hollow tube having a weight of less than 8.5 mg / mm in the axial direction. Certain other embodiments herein relate to a hollow tube having a weight of less than 8.5 mg / mm in the axial direction for use in an article for use with a non-combustible aerosol delivery system. Certain other embodiments herein relate to the use of a hollow tube having a weight of less than 8.5 mg / mm in an article for use with a non-combustible aerosol delivery system.

[0046] Certain other aspects of the present specification relate to an article for use with a non-combustible aerosol delivery system, the article comprising: a rod of aerosol-generating material; and a hollow tube axially aligned with the rod of aerosol-generating material. The hollow tube comprises multiple layers of sheet material having a basis weight of less than 90 GSM. Certain other aspects of the present specification relate to a hollow tube comprising multiple layers of sheet material having a basis weight of less than 90 GSM for use in an article for use with a non-combustible aerosol delivery system.

[0047] Certain other aspects of the present disclosure relate to an article for use with an aerosol delivery system, the article comprising: a rod of aerosol-forming material; and a hollow tube axially aligned with the rod of aerosol-forming material. The hollow tube has a weight of less than 4 mg / mm in the axial direction. Certain other aspects of the present disclosure relate to a hollow tube comprising multiple layers of sheet material for use in an article for use with a non-combustible aerosol delivery system.

[0048] Certain other aspects of the present disclosure relate to an article for use in a non-combustible aerosol delivery system, comprising: a mouthpiece including a filter plug and a hollow tube at an oral end of the mouthpiece, and a tubular cooling section upstream of the filter segment, wherein the filter plug is surrounded by a layer of sheet material to form a covered cylinder, the layer of sheet material extending longitudinally beyond a downstream edge of the filter plug to form the hollow tube at the oral end of the mouthpiece, and the sheet material extending longitudinally beyond an upstream edge of the filter plug to form the tubular cooling section upstream of the filter segment; and a rod of aerosol-forming material connected to the mouthpiece by tipping paper that surrounds the cooling section and the rod of aerosol-forming material.

[0049] Certain other aspects of the present specification relate to the use of any of the articles described herein in a non-combustible aerosol delivery system.

[0050] Certain other aspects of the present specification relate to methods of generating an aerosol using a system comprising any article as described herein and a non-combustible aerosol delivery device.

[0051] Certain other aspects of the present specification relate to a mouthpiece comprising a filter plug, a hollow tube at an oral end of the mouthpiece, and a tubular cooling section upstream of the filter segment, the filter plug being surrounded by a layer of sheet material that extends longitudinally beyond the downstream edge of the filter plug to form the hollow tube at the oral end of the mouthpiece, and the sheet material extending longitudinally beyond the upstream edge of the filter plug to form the tubular cooling section upstream of the filter segment. Certain other aspects of the present specification relate to the use of the above-described mouthpiece in an article for use with a non-combustible aerosol delivery system.

[0052] Certain other aspects of the present disclosure relate to methods of manufacturing articles for use in non-combustion aerosol delivery systems. The method includes forming a mouthpiece by covering a filter plug with a layer of sheet material to form a covered cylinder, the layer of sheet material extending longitudinally beyond the downstream edge of the filter plug to form a first hollow tube at the mouth end of the mouthpiece, and the layer of sheet material extending longitudinally beyond the upstream edge of the filter segment to form a tubular cooling section upstream of the filter segment. The method further includes connecting the mouthpiece to a rod of aerosol-forming material with tipping paper that surrounds the cooling section and the rod of aerosol-forming material. Certain other aspects of the present disclosure relate to articles manufactured according to the above-described methods.

[0053] Examples of articles for use with non-combustion aerosol delivery systems according to the above aspects of the present specification are described in more detail below. A system such as a non-combustion aerosol delivery system as described herein may include an article and an aerosol delivery device. The aerosol delivery device may be a heater for heating the aerosol.

[0054] FIG. 1a is a cross-sectional side view of an article 1 for use in an aerosol delivery system according to embodiments of the present disclosure. The example in FIG. 1a is an article 1 for use in a system with an aerosol generator, such as a heater. The article 1 includes a mouthpiece 14 connected to an aerosol-generation section. In the example of FIG. 1a, the aerosol-generation section is a rod 10 of aerosol-generating material. However, in alternative examples, the article 1 may include an aerosol-generation section connected to the mouthpiece 14, the aerosol-generation section including a cavity for receiving a source of aerosol-generating material.

[0055] The article 1 shown in FIG. 1a includes a rod 10 of aerosol-generating material and one or more hollow tubes axially aligned with the rod of aerosol-generating material. In the example of FIG. 1a, a mouthpiece 14 includes a hollow tube 12 at its mouth end. The hollow tube 12 provides a recessed mouthpiece filter segment configured to be inserted into a user's mouth to receive aerosol generated by the aerosol-generating material during use. However, a hollow tube may additionally or alternatively be provided at any other location. In the example of FIG. 1a, the mouthpiece 14 also includes a hollow tube 16 at the downstream end of the rod 10 of aerosol-generating material, adjacent to and abutting the rod 10 of aerosol-generating material. The hollow tube 16 in the example of FIG. 1a is a cooling section 16 configured to cool the aerosol generated when the rod 10 of aerosol-generating material is heated during use.

[0056] The hollow tube 12 and / or hollow tube 16 as described herein may be provided for use with any suitable article for use with a non-combustion aerosol delivery system. For example, the outer diameter of the hollow tube may substantially correspond to the outer diameter of the rod of aerosol-forming material of an article for use with a non-combustion aerosol delivery system. In some examples, the outer diameter of the hollow tube may substantially correspond to the outer diameter of a filter plug segment of an article for use with a non-combustion aerosol delivery system. The inner diameter of the hollow tube may be configured to receive aerosol generated during heating of the rod of aerosol-forming material during use of the article for use with a non-combustion aerosol delivery system.

[0057] In the example of Figure 1a, hollow tube 12 has a length of approximately 6 mm, filter segment 18 has a length of approximately 10 mm, and cooling section has a length of approximately 25 mm. Those skilled in the art will recognize other suitable lengths for the segments. For example, hollow tube 12 may have a length of 5 to 15 mm. Filter segment 18 may have a length of 5 to 20 mm. Cooling section 16 may have a length of 5 to 30 mm.

[0058] The mouthpiece 1 shown in Figure 1a may also include a filter segment 18, which may be, for example, a filter plug of cellulose acetate tow. In another example, the filter segment may be formed from paper (also referred to as "paper"). Alternatively, the filter segment may be formed from polylactic acid (PLA) or other filament tow or similar material.

[0059] A filter segment 18 may be provided between the hollow tube 12 at the mouth end of the article 1 and the cooling section 16. In some examples, the filter plug 18 may include an aerosol-modifying material that modifies the aerosol as it passes through it. FIG. 1b illustrates the article 1 of FIG. 1a, where the filter plug 18 additionally includes a capsule 18a. The remaining features of the article 1 of FIG. 1b correspond to those of the article 1 of FIG. 1a. In the example of FIG. 1b, the capsule is a breakable capsule comprising a shell and an aerosol-modifying agent encapsulated within the shell. For example, the aerosol-modifying agent may be a flavoring agent for imparting flavor to the aerosol as it passes through the mouthpiece. Examples of aerosol-modifying agents and flavoring agents are described in more detail above. The capsule may be any suitable size. For example, the capsule may be 2-5 mm, more preferably 2.5-4.5 mm, and even more preferably 3-4 mm, e.g., 3.5 mm.

[0060] The rod 10 of aerosol-generating material may comprise strands or strips of aerosol-generating material. In some examples, the aerosol-generating material comprises tobacco. However, the rod 10 may comprise any suitable aerosol-generating material, including, but not limited to, any of the examples listed above. The rod 10 of aerosol-generating material may also be a cylindrical rod.

[0061] The rod of aerosol-forming material 10 may be surrounded by a wrapper 11. The wrapper 11 may be a moisture-impermeable wrapper.

[0062] The rod 10 of aerosol-forming material in the example of Figure 1a has a circumference of about 20.5 mm, or more specifically, 20.45 mm, although in other examples, the rod 10 of aerosol-forming material may have any suitable circumference, for example, from about 20 mm to about 26 mm.

[0063] The hollow tube 12 can be lightweight. For example, the hollow tube 12 can have a reduced weight compared to standard tubing segments used in aerosol delivery systems. In the aerosol delivery system 1 according to the present disclosure, the hollow tube 12 weighs less than 8.5 mg / mm in the axial direction. The reduced weight has been found to improve the biodegradability of consumables and reduce waste generated by use of the aerosol delivery system.

[0064] The hollow tube may be made from any suitable material, provided that the axial weight is less than 8.5 mg / mm in the axial direction.

[0065] For example, hollow tube 12 may comprise a cellulose acetate tube, which may be formed from cellulose acetate tow.

[0066] In particular, the cellulose acetate tube may be formed from cellulose acetate tow having a total fiber denier of 25,000 to 40,000. The total fiber denier is more preferably 28,000 to 36,000. The fiber denier per filament (dpf) of the cellulose acetate tow forming the cellulose acetate tube may be 3 to 10 dpf, more preferably 5 to 8 dpf.

[0067] The hollow tube 12 in the example of FIG. 1a may have a circumference of about 20.5 mm, a wall thickness of about 1.3 mm, and an inner diameter of about 3.9 mm. The hollow tube may include cellulose acetate tow having a denier per filament value of 7.3 and a total fiber denier of 36,000. Alternatively, the cellulose acetate tube may include cellulose acetate tow having a denier per filament value of 5.8 and a total fiber denier of 28,000. These examples have been found to have a weight of less than 8.5 mg / mm, thus providing a reduced-weight tube that helps reduce the overall weight of the consumable. However, one skilled in the art will recognize that any suitable combination of total fiber denier and denier per filament having a weight of less than 8.5 mm / mg may be used.

[0068] It is desirable to maintain a relatively high level of hardness for hollow tube 12 so that the tube can withstand axial compressive forces and bending moments that may occur during manufacture and use of article 1. For example, it is desirable for a cellulose acetate tube provided at the oral end of the mouthpiece to be inserted into the user's mouth to retain its shape and not easily deform due to pressure exerted on the tube by the user's mouth.

[0069] It has been found that cellulose acetate tubes having the parameters described herein can maintain a high level of hardness. Hollow tubes according to embodiments herein have a hardness of at least 70%. Preferably, the hollow tube has a hardness of at least 80%. More preferably, the hollow tube has a hardness of at least 90%.

[0070] The hardness of any of the tubes as described throughout this specification may be measured according to the following protocol: When referring to the hardness of a tube or tubular section herein, the hardness is the hardness determined by the following measurement steps: Any suitable device may be used to perform the measurement, for example, a Borgwaldt Hardness Tester H 10 etc. can be used.

[0071] Hardness is defined as the ratio of the height h0 of a body to the height h1 of that body under a specified load, expressed as a percentage of h0. Hardness can be expressed as: Hardness=(h1 / h0)×100

[0072] For individual tubes or tubes included in multi-section articles, the hardness measurement is taken at the longitudinal center point of the body.

[0073] A load bar is used to apply a defined load to the tube. The length of the load bar is significantly longer than the length of the test specimen. The tube to be tested is conditioned for a minimum of 48 hours according to ISO 3402 before hardness testing and maintained at environmental conditions according to ISO 3402 during the test.

[0074] To perform the hardness test, place the tube in the Hardness Tester H 10 A preload of 2g is applied to the tube, and the initial height h0 of the tube under the 2g preload is recorded after 1 second. The preload is then removed, and a load bar with a 150g load is lowered onto the test piece at a speed of 0.6mm / s, and the height h1 of the tube under the 150g load is measured after 5 seconds.

[0075] Hardness is determined as the average hardness of at least 20 tube sections measured according to this protocol.

[0076] According to other examples according to the present disclosure, the circumference of hollow tube 12 may be any suitable value, for example, between about 20 mm and 26 mm. In particular, the circumference of hollow tube 12 may be 20.45 mm.

[0077] The wall thickness of the hollow tube 12 may be about 1.0 mm to 1.5 mm, preferably 1.25 mm to 1.4 mm, and the inner diameter may be about 3.5 mm to 4.2 mm.

[0078] The hollow tube 12 may include less than 15% by weight of a plasticizer, such as triacetin, although any suitable plasticizer may be used.

[0079] The example mouthpiece according to Figure 1a includes a cooling section. The cooling section is located downstream of and directly adjacent to the rod of aerosol-forming material 10. The cooling section 16 in this example is also in abutting relationship with the rod of aerosol-forming material 10. The cooling section 16 comprises a hollow channel. The hollow channel may provide space for expansion and cooling of aerosol drawn into the cooling section 16.

[0080] It is desirable for the cooling section 16 to be sufficiently rigid to withstand the axial compressive forces and bending moments that may occur during manufacturing and use of the article, however, it is also desirable to reduce the weight of the cooling section in order to improve the overall biodegradability of the article 1 and reduce the overall waste of the article remaining after use.

[0081] The cooling section 16 may include a hollow tube 161 formed from multiple layers of sheet material. The hollow tube 161 may be formed by parallel winding multiple layers of paper with the seams butted together to form the hollow tube. In this example, the first and second paper layers are provided as a two-ply tube, but in other examples, three, four, or more paper layers may be used to form a three-ply, four-ply, or more ply tube. Other configurations may be used, such as spirally wound paper layers, cardboard tubes, tubes formed using a composite paper die process, molded or extruded plastic tubes, or the like.

[0082] The paper may be plug wrap paper and / or tipping paper. In some examples, the plug wrap paper forming the hollow tube 161 of the cooling section 16 is an impermeable or substantially non-porous plug wrap.

[0083] The sheet material making up the hollow tubes 161 of the cooling section 16 preferably has a basis weight of less than 90 GSM. In some examples, the basis weight of the sheet material forming the cooling section 16 has a basis weight of less than 80 GSM. In some examples, the basis weight of the sheet material forming the hollow tubes 161 of the cooling section 16 has a basis weight of less than 70 GSM. In the example of FIG. 1a, the sheet material is a plug jacket having a basis weight of 82 GSM.

[0084] Preferably, the weight of the hollow tubes 161 forming the cooling section 16 is 4 mg / mm or less. In other examples, the weight of the cooling section 16 is 3.5 mg / mm or less. In still other examples, the weight of the cooling section 16 is 3.0 mg / mm or less, or 2.5 mg / mm or less. In the example of Figure 1a, the cooling section has a weight of 3.2 mg / mm.

[0085] The layers of sheet material forming the hollow tube of cooling section 16 are held together by adhesive. In the example of Figure 1a, adhesive is applied to the seams between the layers of sheet material, and additional adhesive is applied as anchorage lines to further secure the layers together.

[0086] The hardness of the hollow tubes 161 forming the cooling section 16 is preferably at least 70%. In some instances, the hardness of the cooling section 16 is at least 80%. In still other instances, the hardness of the cooling section 16 is at least 90%. In the example of FIG. 1a, the hardness of the cooling section is 94%.

[0087] In some examples, cooling section 16 can alternatively be formed using layers of sheet material, such as a rigid plug wrap and / or tipping paper, meaning that separate tubular elements are not required. The rigid plug wrap is manufactured to be sufficiently rigid to withstand axial compressive forces and bending moments that may occur during manufacturing and use of article 1. The rigid plug wrap and / or tipping paper may have a basis weight of 70 GSM to 120 GSM, more preferably 80 GSM to 110 GSM. Additionally or alternatively, the rigid plug wrap and / or tipping paper may have a thickness of 80 μm to 200 μm, more preferably 100 μm to 160 μm, or 120 μm to 150 μm. It may be desirable for both the plug wrap and tipping paper to have values ​​within these ranges to achieve an acceptable overall level of stiffness for the hollow tube of cooling section 16.

[0088] Cooling section 16 may be formed by covering hollow tube 12 and filter segment 18 with plug wrap 13, where the plug wrap extends axially beyond the upstream end of filter plug 18 to form a hollow tube adjacent to and axially aligned with filter segment 18. The hollow tube may be joined to rod 10 of aerosol-forming material by tipping paper 11, for example, with a cavity formed between filter plug 18 and rod 10 of aerosol-forming material, thereby forming cooling section 16. By forming cooling section 16 from a rigid plug wrap 13 that also covers the remaining segments of the mouthpiece, the need for an additional tubular segment for cooling section 16 is eliminated.

[0089] In another example, the cooling section may comprise a cellulose acetate tube, which may be a reduced weight cellulose acetate tube having properties substantially similar to those described in connection with hollow tube 12, and an article including such a cooling section will now be described in more detail with respect to FIG.

[0090] Figure 2 is a cross-sectional side view of an alternative embodiment of an aerosol delivery system according to the present disclosure, article 2, in which the cooling section comprises a cellulose acetate tube. Article 2 largely corresponds to article 1 of Figure 1, and includes a rod of aerosol-generating material 10, a hollow cellulose acetate tube 12, and a mouthpiece 24 comprising a filter material segment 18, as described in connection with Figure 1a. Filter material segment 18 may additionally include an aerosol-modifying material, such as a breakable capsule, as described in connection with Figure 1b.

[0091] The mouthpiece 24 further includes a cooling section 26 disposed adjacent to and abutting the rod 10 of aerosol-generating material. Similar to the example of FIG. 1a, the cooling section 26 may be configured to cool the aerosol generated when the rod 10 of aerosol-generating material is heated during use. In the example of FIG. 2, the cooling section includes a cellulose acetate tube 261. The cellulose acetate tube may be substantially similar to the cellulose acetate tube 12 described in connection with FIG. 1a. For example, the hollow tube 261 may have a low weight to improve the biodegradability of the article 2 and to reduce waste generated by use of the aerosol delivery system. In particular, the hollow tube 261 may have a weight per unit length of less than 8.5 mg / mm in the axial direction.

[0092] The hollow tube 261 may be made from any suitable material, provided that the axial weight is less than 8.5 mg / mm in the axial direction.

[0093] The length of hollow tube 12 may be approximately 6 mm. The length of filter segment 18 may be 10 mm. The length of hollow tube 261 may be approximately 6 mm.

[0094] The hollow tube 261 may be formed from cellulose acetate tow. In particular, the hollow tube 261 may be formed from cellulose acetate tow having a total fiber denier of 28,000 to 36,000. The cellulose acetate tow forming the cellulose acetate tube may have a fiber denier per filament of 5.8 to 7.3. For example, the hollow tube may include cellulose acetate tow having a denier per filament of 7.3 and a total fiber denier of 36,000. Alternatively, the cellulose acetate tube may include cellulose acetate tow having a denier per filament of 5.8 and a total fiber denier of 28,000. However, one skilled in the art will recognize that any suitable combination of total fiber denier and denier per filament having a weight of less than 8.5 mm / mg may be used.

[0095] The circumference, wall thickness, and inner diameter of hollow tube 261 may be substantially the same as hollow tube 12, although any suitable values ​​may be used. In some examples, the circumference of hollow tube 261 may be approximately 20 mm to 26 mm. The wall thickness of hollow tube 261 may be approximately 1.0 mm to 1.5 mm, preferably 1.3 mm to 1.4 mm. The inner diameter may be approximately 3.5 mm to 4.0 mm.

[0096] It is desirable to maintain a relatively high level of hardness for hollow tube 261 so that the tube can withstand axial compressive forces and bending moments that may occur during manufacturing and use of article 2. Hollow tube 261 according to embodiments herein has a hardness of at least 70%. Preferably, the hollow tube has a hardness of at least 80%. More preferably, the hollow tube has a hardness of at least 90%.

[0097] The hollow tube 261 may include less than 15% by weight of a plasticizer, such as triacetin, although any suitable plasticizer may be used.

[0098] Cooling section 26 may additionally or alternatively include at least one hollow tubular section formed from sheet material. In the example of FIG. 2, cooling section 26 further includes hollow tubular sections 262, 263 at each end of cellulose acetate tube 261. Hollow tubular sections 262, 263 are positioned adjacent to and abutting cellulose acetate tube 261. Hollow tubular section 262 may be positioned adjacent to and abutting the upstream end of filter segment 18. Hollow tubular section 263 may be positioned adjacent to and abutting the downstream end of rod 10 of aerosol-forming material. Hollow tubular section 262 may be between 6 mm and 15 mm, e.g., 13 mm. Hollow tubular section 263 may be between 4 mm and 10 mm, e.g., 6 mm.

[0099] The hollow tubular sections 262, 263 may be formed by at least one layer of sheet material, such as paper. The paper may be plug cover and / or tipping paper. In the example of FIG. 2, the hollow tubular sections 262, 263 are formed from plug cover paper. The plug cover paper may be, for example, an impermeable plug cover. In one example according to the present specification, the plug cover paper may be a tube formed from a single layer of rigid plug cover or tipping paper joined by a butt seam. In the example of FIG. 2, the mouthpiece of the article is covered with plug cover paper having a basis weight of approximately 100 GSM. Forming the mouthpiece using rigid plug cover and / or tipping paper means that separate tubular elements for the hollow tubular sections 262, 263 are not required; the hollow tubular sections 262, 263 are cavities formed between the filter plug 18 and the hollow tubular section 261, defined by the outer plug cover. The rigid plug wrap and / or tipping paper may have a basis weight of 70 GSM to 120 GSM, more preferably 80 GSM to 110 GSM. Additionally or alternatively, the rigid plug wrap and / or tipping paper may have a thickness of 80 μm to 200 μm, more preferably 100 μm to 160 μm, or 120 μm to 150 μm. It may be desirable for both the plug wrap and tipping paper to have values ​​within these ranges to achieve an acceptable overall level of stiffness for the hollow tubes in cooling section 16.

[0100] In other examples according to this disclosure, the hollow tubular section may be formed from a paper tube formed from multiple layers of sheet material. Weight reduction may be achieved by reducing the basis weight of the sheet material. For example, the cooling section 26 may include one or more hollow tubes 262, 263 formed from multiple layers of paper having a basis weight of 90 GSM or less. In some examples, the basis weight of the sheet material is less than 80 GSM. In some examples, the basis weight of the sheet material is less than 70 GSM.

[0101] In some examples, the weight per unit length of hollow tubular sections 262, 263 is 4 mg / mm or less. In other examples, the weight of hollow tubular sections 262, 263 is 3.5 mg / mm or less. In still other examples, the weight of hollow tubular sections 262, 263 is 3.0 mg / mm or less, or 2.5 mg / mm or less.

[0102] The sheets of material forming the hollow tubular sections 262, 263 are adhesively secured at the seams. If multiple layers of sheet material are used, the layers are adhesively secured together at the seams and additional adhesive may be provided as tie lines to secure the sheets together.

[0103] In the example of Figure 2, cooling section 26 may be formed by covering cellulose acetate tube 261 with a plug covering, where the plug covering extends axially beyond the end of cellulose acetate tube 261. Plug coverings forming hollow tubular sections 262, 263 may also be provided around each of the segments in mouthpiece 24, including, for example, cellulose acetate tube 12 and filter segment 18, with a gap provided between filter segment 18 and cellulose acetate tube 261 to form hollow tubular section 262. Thus, hollow tubular sections 262, 263 are formed by the plug covering, and no separate tubular sections are required. A tip wrapper may join rod 10 of aerosol-forming material to mouthpiece 24.

[0104] The hardness of hollow tubular sections 262, 263 is preferably at least 70%. In some instances, the hardness of hollow tubular sections 262, 263 is at least 80%. In yet other instances, the hardness of hollow tubular sections 262, 263 is at least 90%.

[0105] The hollow tubes 261, 262, 263 described herein may be provided for use with any suitable article for use with a non-combustion aerosol delivery system. For example, the outer diameter of the hollow tube may substantially correspond to the outer diameter of the rod of aerosol-generating material of the article for use with a non-combustion aerosol delivery system. In some examples, the outer diameter of the hollow tube may substantially correspond to the outer diameter of a filter plug segment of the article for use with a non-combustion aerosol delivery system. The inner diameter of the hollow tube may be configured to receive aerosol generated during heating of the rod of aerosol-generating material during use of the article for use with a non-combustion aerosol delivery system.

[0106] FIG. 3 is a cross-sectional side view of an alternative example of an article 3 for use with an aerosol delivery system according to embodiments of the present disclosure. Article 3 largely corresponds to article 1 of FIG. 1 and includes a rod of aerosol-forming material 10 and a mouthpiece 34 including a hollow cellulose acetate tube 12 and a filter material segment 18, as described in connection with FIG. 1a. The filter material segment 18 may additionally include a breakable capsule containing an aerosol-modifying material, such as the aerosol-modifying material described in connection with FIG. 1b. The mouthpiece 34 further includes a cooling section 36 disposed adjacent to and abutting the rod of aerosol-forming material 10. Similar to the example of FIG. 1a, the cooling section 36 may be configured to cool the aerosol generated when the rod of aerosol-forming material 10 is heated during use.

[0107] In the example of FIG. 3, the cooling section includes a hollow tube 361 formed from multiple layers of sheet material. The sheet material forming the hollow tube 361 may be plug wrap and / or tipping paper. For example, the hollow tube may be formed from two or more layers of plug wrap wound in parallel, seam-to-seam fashion. As described above with respect to the cooling section 16, other constructions may be used, such as spirally wound layers of paper, cardboard tubes, tubes formed using a composite paper-molding process, molded or extruded plastic tubes, or the like. To reduce the weight of the hollow tube 361 to reduce waste from the end-of-life product, the hollow tube 361 may be formed from plug wrap or other sheet material having a basis weight of 90 GSM or less, similar to the cooling section 16 of FIG. 1. In some examples, the basis weight of the sheet material is less than 80 GSM. In some examples, the basis weight of the sheet material is less than 70 GSM. In the example of FIG. 3, the hollow tube 361 is shorter than the hollow tube forming the cooling section 16 of the example of FIG. 1a. Providing shorter tubes reduces the weight of the tubes and therefore the weight of the cooling section 36. The tubes 361 in the example of Figure 3 may be 5mm or less.

[0108] In some examples, the hollow tube 361 may be axially aligned with but spaced apart from the filter segment 18. The tube 361 may be connected to the filter segment 18 and the hollow tube 12 by a rigid plug sheath 13, thereby providing a cavity between the hollow tube 361 and the filter segment 18. The cavity enclosed by the plug sheath 13 then provides the hollow tubular segment 362 without requiring the use of a separate hollow tubular element. The hollow tubular segment 362 may have a length of 20 mm. The rigid plug sheath 13 and / or the tipping paper 11 may have a basis weight of 70 GSM to 120 GSM, more preferably 80 GSM to 110 GSM. Additionally or alternatively, the rigid plug sheath 13 and / or the tipping paper 11 may have a thickness of 80 μm to 200 μm, more preferably 100 μm to 160 μm, or 120 μm to 150 μm. To achieve an acceptable overall level of stiffness for the hollow tube of cooling section 36, it may be desirable for both plug jacket 13 and tipping paper 11 to have values ​​within these ranges.

[0109] Providing hollow tube 362 between hollow tube 361 and filter segment 18 allows for an increased distance in the cooling section, which is useful when hollow segment 361 is substantially shorter than cooling section 16 in the example of FIG. 1a. This provides the mouthpiece with a larger volume within which the aerosol generated during heating of the aerosol-generating material can expand and cool as it passes through cooling section 36, while keeping the weight of the cooling section lower. The overall weight of article 3 can be lower than that of the article of FIG. 1a, thereby reducing overall waste from the article after use and thereby improving the biodegradability of the article.

[0110] Alternatively, the cooling section 36 may be fabricated from only a single layer of rigid plug jacket 13 without the tubular segment 361. However, the rigidity of the cooling section 36 may be improved by including a tubular section 361 formed from multiple layers of sheet material.

[0111] The hollow tubes 361, 362 as described herein may be provided for use with any suitable article for use with a non-combustion aerosol delivery system. For example, the outer diameter of the hollow tube may substantially correspond to the outer diameter of the rod of aerosol-generating material of the article for use with a non-combustion aerosol delivery system. In some examples, the outer diameter of the hollow tube may substantially correspond to the outer diameter of a filter plug segment of the article for use with a non-combustion aerosol delivery system. The inner diameter of the hollow tube may be configured to receive aerosol generated during heating of the rod of aerosol-generating material during use of the article for use with a non-combustion aerosol delivery system.

[0112] 4a is a cross-sectional side view of an alternative embodiment of an article 4 for use with an aerosol delivery system according to an embodiment of the present disclosure. The article 4 includes a rod 10 of aerosol-forming material and a mouthpiece 44. The mouthpiece includes a cooling section 46 at the downstream end of the rod 10 of aerosol-forming material. The cooling section 46 is disposed adjacent to and abuts the rod of aerosol-forming material. A filter plug 18 is disposed downstream of the cooling section. The filter plug 18 is disposed adjacent to and abuts the cooling section 46. Additionally, the downstream end of the mouthpiece 44 includes a recessed mouth end segment 42.

[0113] The mouth end segment may, for example, be 5 to 15 mm long, for example 12 mm long. The filter segment 18 may be 5 to 15 mm long, for example 13 mm long. The cooling section may be 5 to 30 mm long, for example 25 mm long.

[0114] 1, 2, and 3, a cooling section 46 is provided to receive aerosol from the rod 10 of aerosol-generating material as the rod 10 heats up during use. The generated aerosols expand within the cooling section 46 and are cooled as they pass through the cooling section 46 before being delivered to the user through the filter plug and recessed mouth end segment 42.

[0115] In the example of FIG. 4a, the cooling section 46 is a hollow tube 461a formed by layers of sheet material. In particular, the cooling section may comprise a channel having an inner surface defined by layers of sheet material. For example, the cooling section may comprise a rigid plug jacket 13 formed in a tubular shape. The rigid plug jacket 13 forming the cooling section 46 may have a basis weight of 70 GSM to 120 GSM, more preferably 80 GSM to 110 GSM. Additionally or alternatively, the rigid plug jacket 13 may have a thickness of 80 μm to 200 μm, more preferably 100 μm to 160 μm, or 120 μm to 150 μm. It may be desirable for the plug jacket to have a value within these ranges to achieve an acceptable overall level of stiffness for the hollow tube of the cooling section 46.

[0116] In the example of FIG. 4a, the concave mouthpiece 42 is also a hollow tube formed by layers of sheet material, such as a rigid plug sheath 13 formed into a tubular shape. In particular, the concave mouthpiece may include a channel having an inner surface defined by layers of sheet material. In a similar manner to the cooling section 46, the rigid plug sheath 13 forming the concave mouthpiece 42 may have a basis weight of 70 GSM to 120 GSM, more preferably 80 GSM to 110 GSM. Additionally or alternatively, the rigid plug sheath 13 may have a thickness of 80 μm to 200 μm, more preferably 100 μm to 160 μm, or 120 μm to 150 μm. It may be desirable for the plug sheath 13 to have a value within these ranges to achieve an acceptable overall level of stiffness for the hollow tube of the cooling section 46.

[0117] In the example of Figure 4a, both the cooling section 46 and the recessed mouthpiece 42 are formed by wrapping a single piece of rigid plug wrap 13 around the filter plug 18. The plug wrap 13 extends longitudinally beyond the edges of the filter plug 18 to form hollow tubes 42, 461a on each side of the filter plug 18. In this manner, the mouthpiece 44 can be simply formed without the need for any additional tubes.

[0118] However, additional tubes within cooling section 46 may improve the overall stiffness of article 4.

[0119] In the example of FIG. 4b, the cooling section 46 additionally includes a hollow tubular segment 461b disposed adjacent to and abutting the rod 10 of aerosol-generating material. For example, the hollow tube 461a formed by the plug jacket 13 may be disposed around the hollow tubular segment 461b. The hollow tubular segment 461b may extend the entire length of the cooling section 46 or may be a shorter section, as shown in the example of FIG. 4c. The hollow tubular segment 461c of FIG. 4c may be similar to the hollow tubular segment 361 shown in FIG. 3.

[0120] Providing an additional hollow tubular segment 461 within the cooling section 46 may increase the overall stiffness of the article 4, however, this may increase the overall weight and waste generated after use of the article 4. In this case, providing a shortened tubular segment 461c that does not extend along the entire length of the cooling section 46 may provide some additional stiffness compared to the example of Figure 4a while keeping the weight of the article low. In this case, the waste generated after use of the article 4 and the overall biodegradability of the article 4 may be improved.

[0121] In the example of Figure 4c, hollow tubular segment 461c is 5mm or less. In some examples, hollow tubular segment 461c may be between 2.5mm and 5mm. In some examples, hollow tubular segment 461c may be 4mm or less, 3mm or less, or 2.5mm.

[0122] The hollow tubular segments 461b, 461c may be formed from multiple layers of sheet material. The sheet material forming the hollow tubular segments 461b, 461c may have any suitable basis weight. For the shortened length tubular segment 461c, the basis weight may be between 60 GSM and 120 GSM. In some examples, the basis weight may be between 90 GSM and 110 GSM. In some examples, the basis weight may be 100 GSM. In some examples, such as when the hollow tubular segment 461b extends over at least half the length of the cooling section 46, the hollow tubular segment 461b is formed from sheet material having a basis weight of 90 GSM or less. In some examples, the basis weight of the sheet material is less than 80 GSM. In some examples, the basis weight of the sheet material is less than 70 GSM. In this case, a lighter plug jacket may be used to compensate for the longer length of the hollow tubular segment 461b, in which case the basis weight of the sheet material forming the hollow tubular segment 461b may be reduced to keep the overall weight of the cooling section 46 low.

[0123] The hollow tubes 461 a, 461 b as described herein may be provided for use with any suitable article for use with a non-combustion aerosol delivery system. For example, the outer diameter of the hollow tube may substantially correspond to the outer diameter of the rod of aerosol-generating material of the article for use with a non-combustion aerosol delivery system. In some examples, the outer diameter of the hollow tube may substantially correspond to the outer diameter of a filter plug segment of the article for use with a non-combustion aerosol delivery system. The inner diameter of the hollow tube may be configured to receive aerosol generated during heating of the rod of aerosol-generating material during use of the article for use with a non-combustion aerosol delivery system.

[0124] The filter plug 18 in any of the examples of Figures 4a, 4b, and 4c may additionally comprise a breakable capsule, which may comprise a shell containing the aerosol-modifying material, as described above with reference to Figure 1b.

[0125] In the examples of Figures 4a, 4b, and 4c, filter plug 18 is preferably formed from paper. Those skilled in the art will recognize suitable paper filter plugs for use in article 4 for use with a non-combustible aerosol delivery system. Alternatively, filter plug 18 may be formed from cellulose acetate, such as cellulose acetate tow. Those skilled in the art will recognize that any suitable filter material may be used to form filter plug 18.

[0126] According to embodiments herein, any of the articles described above with respect to Figures 1-4c may alternatively be provided without the oral end recessed segment. Thus, mouthpieces 14, 23, 34, 44 may further reduce in weight by shortening the overall length of the mouthpiece by omitting the oral end tube formed from either the cellulose acetate layer or the sheet material layer.

[0127] For example, the filter plug segment 18 may be provided with a length of approximately 12 mm, which can be combined with any of the cooling sections 16, 26, 36, 46 described above, which have a length of approximately 25 mm. The overall length of the mouthpiece may then be approximately 37 mm, as opposed to a mouthpiece including a mouth-end recess having a length of approximately 41 mm. The overall amount of material forming the mouthpiece may be reduced as a result, which may improve the biodegradability of the article. The sensation experienced by the user may differ depending on whether the article includes a mouth-end recessed segment. For example, an article without a mouth-end recess may provide a warmer sensation to the user's lips during use compared to a corresponding article including a mouth-end recess. Therefore, mouth-end recesses may be provided or omitted to accommodate various user preferences. The filter 18 may or may not include capsules containing an aerosol-modifying material.

[0128] In another example, an article provided without a mouth-end filter segment may include a filter segment 18 having a length of approximately 20 mm and cooling sections 16, 26, 36, 46 having a length of approximately 17 mm. Thus, the corresponding reduction in length and omission of the mouth-end tube may result in a reduction in the overall weight of the article. The resulting reduction in the overall amount of material forming the mouthpiece may improve the overall biodegradability of the article. A filter segment 18 having a length of approximately 20 mm may be provided with two or more capsules containing the aerosol-modifying material. In other examples, a 20 mm long filter segment 18 may be provided with no capsules, a single capsule, or three or more capsules.

[0129] FIG. 5a illustrates a method of manufacturing an article 4 as shown in FIG. 4a according to an embodiment of the present disclosure, and FIG. 6 is a flowchart illustrating the steps of the method. FIG. 5a illustrates the components of article 4 before coating. In step S601, filter plug 18 is coated with a layer of sheet material to form a coated cylinder. The layer of sheet material extends longitudinally beyond the downstream edge of filter plug 18 to form first hollow tube 42 at the mouth end of the mouthpiece. Additionally, a layer of sheet material extends longitudinally beyond the upstream edge of the filter plug to form tubular cooling section 46 upstream of the filter segment. The coated cylinder, including filter plug 18, hollow tube 42, and hollow tube 461a, forms mouthpiece 44 of the article.

[0130] The sheet material used to cover the filter plug 18 may be, for example, a rigid plug cover as described in connection with the article of Figure 4a.

[0131] Therefore, the concave mouthpiece can be manufactured at low cost with a simple manufacturing process since the mouthpiece does not require an additional tube.

[0132] The filter plug 18 may be formed from paper. Alternatively, the filter plug 18 may be formed using cellulose acetate, PLA, or any other suitable filter material.

[0133] In step S602, the method further includes connecting the mouthpiece 44 to the rod of aerosol-forming material with tipping paper surrounding the cooling section 46 and the rod of aerosol-forming material 10.

[0134] In some examples, the method also includes coating a layer of sheet material around hollow tubular segment 461b or 461c in step S601. In example Figure 5b, hollow tubular segment 461c is longitudinally spaced from filter plug 18, and the layer of sheet material coats filter plug 18 and hollow tubular segment 461c such that a gap is formed between filter plug 18 and hollow tubular segment 461c. The filter plug may comprise a breakable capsule comprising a shell containing the aerosol-modifying material.

[0135] In another embodiment, the method includes, in step S601, coating a layer of sheet material around tubular segment 461b such that hollow tubular segment 461b abuts the upstream end of filter plug 18. The filter plug 18 and hollow tubular segment 461b are coated with the layer of sheet material to form article 4b, as shown in FIG.

[0136] FIG. 7 shows an example of forming a two-cavity (2-up) mouthpiece rod that is cut to form two mouthpieces that are then combined with a rod of aerosol-generating material.

[0137] In the example of FIG. 7 , filter plugs 18 are separated by approximately 50 mm gaps and covered by plug wraps 11 approximately 100 mm long. For filter segments approximately 13 mm long, the plug wraps extend approximately 12 mm beyond each edge of the filter segment. The filter plugs 18 are covered by the plug wraps 11 to form a hollow tube with approximately 12 mm hollow cavities at each end and approximately 50 mm cavities between the filter plugs 18. This hollow tube is then cut down the center with a cutter to form two mouthpieces. Each mouthpiece includes a 12 mm mouth-end cavity, a 13 mm filter plug, and a 25 mm upstream cavity that forms the cooling section. The mouthpiece can then be combined with the rod of aerosol-forming material to form an article for use with an aerosol delivery system by surrounding the cooling section and rod of aerosol-forming material with tipping paper to secure them together.

[0138] In some examples, a hollow tube can be inserted into the cooling section, as shown in Figure 7b. Hollow tubing segments can be provided between the filter plugs 18. The hollow tubing segments can be, for example, 10 mm long. Each filter plug 18 can be separated from the hollow tubing segment by a gap of 15 mm. The filter plugs 18 and hollow tubing segments can be covered with a plug cover to form a covered rod. Two mouthpieces can be formed by cutting the covered rod along its center, i.e., through the hollow tubing segments, with a cutter. Each mouthpiece includes a 12 mm mouth-end cavity, a 13 mm filter plug, a 15 mm cavity, and a 5 mm hollow tubing segment. The hollow tubing segments can provide additional rigidity to the mouthpiece. For example, the hollow tubing segments can help improve the roundness of the mouthpiece.

[0139] The hollow tube may be of any suitable length. In some instances, the hollow tube may extend between filter plugs 18. However, weight savings may be obtained by shortening the length of the hollow tube. Preferably, the hollow tube in the final mouthpiece is 5 mm or less to keep the overall weight of the article low and reduce waste remaining after use of the article.

[0140] Those skilled in the art will recognize that this manufacturing method can be further adapted to include an oral end tube, such as cellulose acetate tube 12 of Figures 1, 2, and 3, or cellulose acetate tube 261 shown in Figure 2. Alternatively or additionally, the mouthpiece can include additional filter segments or components by wrapping the filter segment 18 and cooling sections 16, 26, 36, 46 together with a sheet of material.

[0141] The following examples provide more detailed descriptions of hollow tubes that may be used in the mouthpieces 14, 24, 34, 44 of the articles 1, 2, 3, 4 described above in accordance with embodiments herein. [Example]

[0142] Figure 8 is a table showing several example hollow tubes for use in articles according to embodiments herein, such as Articles 1, 2, and 3. The example shown in Figure 8 is a hollow tube formed from cellulose acetate tow. In this example, the tube is approximately 96.6 mm in length. The tube is intended to be cut to the desired length prior to introduction into the aerosol product article during manufacturing.

[0143] The parameters shown include the initial values ​​of the parameters after manufacture (i.e., the "Operation" column in Figure 8) and the subsequent values ​​for the tube after a 5-day aging period from manufacture.

[0144] A comparative example of a cellulose acetate tube currently used in some aerosol delivery systems is shown. The comparative example has an initial tube length of 96.6 mm, an initial weight of 1028.4 mg, an initial wall thickness of 1.3 mm, and a circumference of 20.53 mm. The initial hardness of the comparative example tube is 96.1%. After an aging period, the tube length is 96.4 mm, the weight is 1020.7 mg, the wall thickness is 1.3 mm, and the circumference is 20.50 mm. After the aging period, the hardness increased to 96.7%.

[0145] In Example 1, which relates to a hollow tube 12 according to an embodiment of the present specification, the tube is formed from cellulose acetate tow with a denier per filament of 7.3, for a total denier of 36,000. The tube has an initial length of 96.44 mm, an initial weight of 933.18 mg, an initial wall thickness of 1.27 mm, and a circumference of 20.52 mm. The initial hardness is 95.68%.

[0146] After aging, the hollow tube had a circumference of 20.45 mm and a wall thickness of 1.3 mm. The length of tube 12 was 96.35 mm. The tube weighed 925.72 mg, which was less than the weight of the comparative cellulose acetate tube, representing a weight reduction of 9.3%. Therefore, it can be seen that by reducing the denier per filament and total denier of the cellulose acetate tube, a substantial weight reduction can be achieved while still maintaining substantially the same physical size characteristics. Thus, the length, circumference, and wall thickness are substantially the same as those of the comparative example, yet the weight reduction described is achieved.

[0147] Furthermore, it was found that the hardness of the hollow tube of Example 1 was not substantially lower than that of the hollow tube of the Comparative Example. As can be seen from Figure 8, the hardness of the tube after the aging treatment increased to 96.40%. Therefore, the hardness of the weight-reduced tube of Example 1 was substantially similar to that of the Comparative Example.

[0148] In Example 2, the tube is formed from cellulose acetate tow with a denier per filament of 5.8 and a total denier of 28,000. The tube has an initial length of 96.43 mm, an initial weight of 839.6 mg, an initial wall thickness of 1.37 mm, and a circumference of 20.48 mm. The initial hardness is 95.51%.

[0149] After aging, the hollow tube had a circumference of 20.39 mm and a wall thickness of 1.3 mm. The length of tube 12 was 96.5 mm. The tube weighed 834.76 mg, which was less than the weight of the comparative cellulose acetate tube, representing a weight reduction of 17.7%. Therefore, it can be seen that by reducing the denier per filament and total denier of the cellulose acetate tube, a substantial weight reduction can be achieved while still maintaining substantially the same physical size characteristics. Thus, the length, circumference, and wall thickness are substantially the same as those of the comparative example, yet the weight reduction described is achieved.

[0150] Furthermore, it was found that the hardness of the hollow tube of Example 1 was not substantially lower than that of the hollow tube of the Comparative Example. As can be seen from Figure 8, the hardness of the tube after the aging treatment increased to 96.66%. Therefore, the hardness of the weight-reduced tube of Example 2 was substantially similar to that of the Comparative Example.

[0151] Therefore, it can be seen that by reducing the fiber denier per filament and the total denier of the cellulose acetate tow that makes up the hollow tube, a substantial weight reduction in the article can be achieved while maintaining the tube hardness at greater than 90%.

[0152] Thus, the tubes of Examples 1 and 2 can provide a base rod that is cut into a plurality of hollow tubes 12 that will be included in the aerosol product article.

[0153] Hollow tubes, such as hollow tubes 161, 362, 461b, 461c, are formed from multiple layers of sheet material, such as plug jackets, as described in connection with Figures 1, 3, and 4. Such hollow tubes are described in more detail hereinafter. In the example described below, the hollow tubes are approximately 100 mm in length and can be cut to size before inclusion in the mouthpiece of the article.

[0154] Example 3 In Example 3, a hollow tube is formed from multiple layers of plug-coated paper. The plug-coated paper has a basis weight of 82 GSM. The circumference of the tube is approximately 20.15 mm to 20.51 mm, preferably approximately 20.33 mm. The inner diameter of the hollow tube is approximately 19.56 mm.

[0155] The plug wrap paper used to form a 100 mm tube as described above weighs approximately 304 mg. The layers of plug wrap are adhesively secured together at the seams, and adjacent layers are secured together by adhesive locks, so that the plug wrap forms a hollow tube. The seams are secured using adhesive applied at a rate of approximately 0.08 mg / mm. Adhesive is applied to the seams of the 100 mm tube such that the total adhesive weight at each seam is approximately 6.4 mg to 9.6 mg, e.g., 8 mg. The adhesive locks are applied at a rate of approximately 0.2 mg / mm. The adhesive is applied to the locks so that the total adhesive weight at each lock is 16 mg to 24 mg, e.g., 18 mg to 22 mg, preferably 20 mg.

[0156] After the adhesive is applied to the plug cover to form the tube, the tube is allowed to cure for approximately one hour, after which the total weight of the tube is between 300 mg and 340 mg, preferably between 310 mg and 330 mg, and more preferably about 320 mg.

[0157] The tube has a hardness of at least 70% to maintain adequate rigidity to withstand axial compressive forces during the manufacture of articles using the tube. Preferably, the tube has a hardness of at least 80% or at least 90%. More preferably, the tube has a hardness of about 94%.

[0158] The tube has a circularity of at least 92%. Preferably, the tube has a circularity of 94%.

[0159] Example 4 In Example 4, a hollow tube is formed from multiple layers of plug coated paper in the same manner as described in Example 3, except that the plug coated paper has a basis weight of 60 GSM. The circumference of the tube is about 20.15 mm to 20.51 mm, preferably about 20.33 mm. The inner diameter of the hollow tube is about 19.56 mm.

[0160] The plug wrap paper used to form a 100 mm tube as described above weighs approximately 324 mg. The layers of plug wrap are adhesively secured together at the seams, and adjacent layers are secured together by adhesive locks, so that the plug wrap forms a hollow tube. The seams are secured using adhesive applied at a rate of approximately 0.08 mg / mm. Adhesive is applied to the seams of the 100 mm tube such that the total adhesive weight at each seam is approximately 6.4 mg to 9.6 mg, e.g., 8 mg. The adhesive locks are applied at a rate of approximately 0.2 mg / mm. Adhesive is applied to the locks so that the total adhesive weight at each lock is 16 mg to 24 mg, e.g., 18 mg to 22 mg, preferably 20 mg.

[0161] After the adhesive is applied to the plug cover to form the tube, the tube is allowed to cure for approximately one hour, and the total weight of the cured tube is between 226 mg and 266 mg, preferably between 236 mg and 256 mg, and more preferably about 246 mg.

[0162] The tube has a hardness of at least 70% as measured using the H10 hardness method to maintain adequate rigidity to withstand axial compressive forces during the manufacture of articles using the tube. Preferably, the tube has a hardness of at least 80% or at least 90%. More preferably, the tube has a hardness of about 94%.

[0163] The tube has a circularity of at least 92%. Preferably, the tube has a circularity of 94%.

[0164] The tubing of Examples 3 and 4 can be cut to the appropriate length and introduced, as described above, into the cooling section and / or mouth end of any of Articles 1, 2, 3, and 4. The weight of the tubing can be less than traditional paper tubing used in the cooling section of articles for use with non-combustible aerosol delivery systems.

[0165] The various embodiments described herein are presented solely to aid in the understanding and teaching of the claimed features. These embodiments are provided only as a representative sample of embodiments and are not intended to be exhaustive and / or exclusive. It should be understood that the advantages, embodiments, examples, functions, features, structures, and / or other aspects described herein should not be construed as limiting the scope of the invention as defined by the claims or the equivalents of the claims, and that other embodiments may be utilized and changes may be made without departing from the scope of the claimed invention. Various embodiments of the invention may, where appropriate, comprise, consist of, or consist essentially of any suitable combination 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 currently claimed but which may be claimed in the future.

Claims

1. 1. An article for use with a non-combustible aerosol delivery system, comprising: a rod of aerosol-forming material and a hollow tube axially aligned with the rod of aerosol-forming material; The article, wherein the hollow tube has a weight of less than 8.5 mg / mm in the axial direction.

2. The article of claim 1 , wherein the hollow tube comprises a cellulose acetate tube or tube formed from multiple layers of sheet material.

3. 10. The article of claim 1, wherein the hollow tube is a cellulose acetate tube formed from cellulose acetate tow.

4. 4. The article of claim 3, wherein the cellulose acetate tow forming the cellulose acetate tube has a total fiber denier of 25,000 to 40,000.

5. 5. The article according to claim 3, wherein the cellulose acetate tow forming the cellulose acetate tube has a fiber denier per filament of 3 to 10 dpf or 5 to 8 dpf.

6. The article of any one of claims 1 to 5, wherein the hollow tube comprises no more than 15% by weight of a plasticizer.

7. 1. An article for use with a non-combustible aerosol delivery system, comprising: a rod of aerosol-generating material; and a hollow tube axially aligned with the rod of aerosol-forming material; Equipped with The article, wherein the hollow tube comprises multiple layers of sheet material having a basis weight of less than 90 GSM.

8. 1. An article for use with a non-combustible aerosol delivery system, comprising: a rod of aerosol-generating material; and a hollow tube axially aligned with the rod of aerosol-forming material; Equipped with The article, wherein the hollow tube comprises multiple layers of sheet material, and the weight per unit length of the hollow tube is less than 4 mg / mm in the axial direction.

9. 9. The article of claim 7 or 8, wherein the sheet material has a basis weight of less than 80 GSM or less than 70 GSM.

10. The article of any one of claims 1 to 9, wherein the hollow tube is disposed in adjacent abutting contact with the rod of aerosol-forming material.

11. The article of any one of claims 1 to 9, wherein the hollow tube is located at the mouth end of the article.

12. 1. An article for use with a non-combustible aerosol delivery system, comprising: a rod of aerosol-generating material configured to generate an aerosol when heated in use; a hollow tube axially aligned with the rod of aerosol-forming material and positioned adjacent to and abutting the rod of aerosol-forming material; Equipped with The article, wherein the hollow tube has an axial length of 5 mm or less.

13. 13. The article of claim 12, wherein the hollow tube is located within a cooling section of the article configured to cool an aerosol generated from the rod of aerosol-forming material when the rod of aerosol-forming material is heated during use.

14. The article of claim 13 , wherein the cooling section further comprises a cavity between the hollow tube and a downstream filter plug.

15. The article of any one of claims 12 to 14, wherein the hollow tube comprises multiple layers of sheet material.

16. 16. The article of claim 15, wherein the sheet material has a basis weight of less than 90 GSM, less than 80 GSM, or less than 70 GSM.

17. 1. An article for use in a non-combustible aerosol delivery system, comprising: a mouthpiece and a rod of aerosol-forming material; the mouthpiece comprising a filter plug, a hollow tube at an oral end of the mouthpiece, and a tubular cooling section upstream of a filter segment, the filter plug being surrounded by a layer of sheet material that extends longitudinally beyond a downstream edge of the filter plug to form the hollow tube at the oral end of the mouthpiece, and the sheet material extending longitudinally beyond an upstream edge of the filter plug to form the tubular cooling section upstream of the filter segment; The rod of aerosol-forming material is connected to the mouthpiece by tipping paper that surrounds the cooling section and the rod of aerosol-forming material, and the cooling section is positioned adjacent to and abuts the rod of aerosol-forming material.

18. 18. The article of claim 17, wherein the hollow tube at the mouth end comprises a channel having an interior surface defined by the layer of sheet material.

19. 19. The article of claim 17 or 18, wherein the cooling section comprises a channel having an inner surface defined by a layer of the sheet material.

20. 20. The article of any one of claims 17-19, wherein the cooling section further comprises a hollow tubular segment surrounded by the layer of sheet material, the hollow tubular segment defining an inner surface of a channel extending through the cooling section.

21. 20. The article of claim 19, wherein the hollow tubular segment is longitudinally spaced from the filter plug such that the cooling section comprises a cavity between the hollow tubular segment and the filter plug.

22. The article of any one of claims 1 to 21, wherein the aerosol-forming material comprises tobacco material.

23. Use of an article according to any one of claims 1 to 22 in a non-combustible aerosol delivery system.

24. A system comprising the article of any one of claims 1 to 22 and a non-combustion aerosol delivery device for heating the aerosol-forming material of the article.

25. 1. A method of manufacturing an article for use in a non-combustible aerosol delivery system, comprising: forming a mouthpiece by covering a filter plug with a layer of sheet material that extends longitudinally beyond a downstream edge of the filter plug to form a first hollow tube at a mouth end of the mouthpiece and that extends longitudinally beyond an upstream edge of a filter segment to form a tubular cooling section upstream of the filter segment; connecting the mouthpiece to a rod of aerosol-forming material with tipping paper surrounding the cooling section and the rod of aerosol-forming material, the cooling section being disposed adjacent to and abutting the rod of aerosol-forming material; A method comprising:

26. 26. The method of claim 25, wherein forming the mouthpiece further comprises coating the layer of sheet material around a hollow tubular segment upstream of the filter plug such that a portion of the layer of sheet material surrounding the hollow tubular segment is included in the cooling section.

27. 27. The method of claim 26, wherein the hollow tubular segment is longitudinally spaced from the filter plug such that the cooling section further comprises a channel having an inner surface defined by the layer of sheet material.

28. An article for use in a non-combustible aerosol delivery system, made by the method of any one of claims 25 to 27.

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