KR20230156839A - Components for articles for use in aerosol delivery systems - Google Patents

Abstract

A component of an article for use in or as a non-flammable aerosol delivery system may include a longitudinally extending body of material, the body of material comprising a series of substantially parallel ridges and grooves. It includes a crimped sheet material formed to have a crimp pattern. The average spacing between adjacent ridges may be greater than about 0.3 mm, and the average density of the body of material may be from about 0.1 to about 0.25 mg/mm3. Additionally or alternatively, the crimp amplitude may be less than about 0.7 mm or from about 0.7 mm to about 1.2 mm. An article for use in or as a non-flammable aerosol delivery system is also provided, the article comprising an aerosol-generating material and a downstream portion downstream of the aerosol-generating material, the downstream portion having components. Non-flammable aerosol delivery systems and methods for forming components of articles for use in non-flammable aerosol delivery systems are also provided.

Description

Components for articles for use in aerosol delivery systems

The present disclosure provides components for articles for use in or as a non-flammable aerosol delivery system, articles for use in or as a non-flammable aerosol delivery system, and non-flammable aerosol delivery systems. It relates to a method for forming a component for an article for use in or as a non-flammable aerosol delivery system.

Certain tobacco industry products produce aerosols that are inhaled by the user during use. For example, tobacco heating devices heat an aerosol-generating substrate, such as a cigarette, to form an aerosol by heating but not burning the substrate. These tobacco industry products typically include mouthpieces through which the aerosol passes to reach the user's mouth.

According to embodiments described herein, according to a first aspect, there is provided a component for an article for use in or as a non-flammable aerosol delivery system, the component comprising a material extending longitudinally. comprising a body, the body of material comprising a crimped sheet material formed with a crimp pattern comprising a series of substantially parallel ridges and grooves, the average spacing between adjacent ridges being greater than about 0.3 mm, and The average density of the body of material is from about 0.1 to about 0.25 mg/mm3.

According to embodiments described herein, according to a second aspect, there is provided a component for an article for use in or as a non-flammable aerosol delivery system, the component comprising a material extending longitudinally. comprising a body, the body of material comprising a crimped sheet material formed with a crimp pattern comprising a series of substantially parallel ridges and grooves, the crimp amplitude being less than about 0.7 mm, and the body of material having an average density of is about 0.1 to about 0.25 mg/mm3.

According to embodiments described herein, according to a third aspect, there is provided an article for use in or as a non-flammable aerosol delivery system, the article comprising an aerosol-generating material and a downstream of the aerosol-generating material. and a portion, the downstream portion comprising an element according to the first or second aspect.

According to embodiments described herein, according to a fourth aspect, there is provided a non-flammable aerosol delivery system comprising an article according to the third aspect.

According to embodiments described herein, according to a fifth aspect, a method is provided for forming a component for an article for use in a non-flammable aerosol delivery system, the method comprising applying a crimp pattern to a sheet material. - a crimp pattern comprising a series of substantially parallel ridges and grooves, the average spacing between adjacent ridges being greater than about 0.3 mm, and forming the sheet material into a body of material, The average density of the body of material is from about 0.1 to about 0.25 mg/mm3.

According to embodiments described herein, according to a fifth aspect, a method is provided for forming a component for an article for use in a non-flammable aerosol delivery system, the method comprising applying a crimp pattern to a sheet material. - a crimp pattern comprising a series of substantially parallel ridges and grooves, the crimp amplitude being less than about 0.7 mm, and forming the sheet material into a body of material, wherein the average density of the body of material is: is about 0.1 to about 0.25 mg/mm3.

DETAILED DESCRIPTION Embodiments of the present invention will now be described by way of non-limiting example only with reference to the accompanying drawings.
1 is a cross-sectional side view of an article for use with a non-flammable aerosol delivery device, the article comprising a body of material formed from a sheet material.
Figure 2A is an end cross-sectional view of the material body of the article of Figure 1, taken along line AA in Figure 1;
Figure 2b is a side-on view of the sheet material forming the body of material of Figure 2a.
Figure 3 is a cross-sectional side view of an article for use with a non-flammable aerosol delivery device.
Figure 4 is a cross-sectional side view of an article for use with a non-flammable aerosol delivery device.
Figure 5 is a cross-sectional side view of an article for use with a non-flammable aerosol delivery device.
Figure 6 is a side cross-sectional view of a multiple length rod for manufacturing a material body of the article of Figure 5;
Figure 7 is a perspective view of a non-flammable aerosol delivery device.
Figure 8 illustrates the device of Figure 7 with the outer cover removed and no article present.
Figure 9 is a side view of a partial cross-section of the device of Figure 8;
Figure 10 is an exploded view of the device of Figure 8 with the outer cover omitted.
FIG. 11A is a cross-sectional view of a portion of the device of FIG. 8.
Figure 11b is an enlarged view of a section of the device of Figure 11a.

In accordance with this disclosure, “aerosol delivery system” includes both flammable aerosol delivery systems and non-flammable aerosol delivery systems.

According to the present disclosure, a “combustible” aerosol delivery system is one in which the constituent aerosol-generating materials of the aerosol delivery system (or components thereof) are combusted during use to facilitate delivery of at least one substance to a user. ) or burned system.

In some embodiments, the present disclosure provides components for use in a flammable aerosol delivery system, such as filters, filter rods, filter segments, tobacco rods, and spills. (spill), aerosol modifier release component, such as a capsule, thread, or bead, or paper, such as plug wrap, tipping paper or cigarette paper.

According to the present disclosure, a "non-combustible" aerosol delivery system comprises a component aerosol generating material of the aerosol delivery system (or a component thereof) to facilitate delivery of at least one substance to a user. It is a system that neither combusts nor burns.

In some embodiments, the delivery system is a non-flammable aerosol delivery system, such as a powered non-flammable aerosol delivery system.

In some embodiments, the non-flammable aerosol delivery system may be an electronic cigarette, also known as a vaping device or electronic nicotine delivery system (END), although the presence of nicotine in the aerosol-generating material is not a requirement. You should pay attention to this point.

In some embodiments, the non-flammable aerosol provision system is an aerosol generating material heating system, also known as a heat-not-burn system. One example of such a system is a tobacco heating system.

In some embodiments, the non-flammable aerosol delivery system is a hybrid system that generates an aerosol using a combination of aerosol generating materials, one or more of which may be heated. Each of the aerosol-generating materials may be in solid, liquid or gel form, for example, 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. Solid aerosol generating materials may include, for example, tobacco or non-tobacco products.

Typically, a non-flammable aerosol delivery system may include a non-flammable aerosol delivery device and consumables for use with the non-flammable aerosol delivery device.

In some embodiments, the present disclosure relates to consumables that include an aerosol generating material and are configured for use with non-flammable aerosol presentation devices. These consumables are sometimes referred to as articles throughout this disclosure.

In some embodiments, a non-flammable aerosol delivery system, such as a non-flammable aerosol delivery device, can include a power source and a controller. The power source may be, for example, an electric power source or an exothermic power source. In some embodiments, the heating power source includes a carbon substrate capable of supplying energy to distribute power in the form of heat to an aerosol generating material or heat transfer material proximate to the heating power source.

In some embodiments, a non-flammable aerosol delivery system may include a region for receiving consumables, an aerosol generator, an aerosol generation region, a housing, a mouthpiece, a filter, and/or an aerosol modifier.

In some embodiments, consumables for use with a non-flammable aerosol delivery device include an aerosol-generating material, an aerosol-generating material storage region, an aerosol-generating material delivery component, an aerosol generator, an aerosol-generating region, a housing, a wrapper, a filter, and a mouthpiece. and/or an aerosol modifier.

In some embodiments, the substance to be delivered includes an active substance.

As used herein, the active agent may be a physiologically active material, which is a material intended to achieve or enhance a physiological response. The active substances may be selected from, for example, nutraceuticals, nootropics, and psychoactives. The active substances may occur naturally or be obtained synthetically. The active substances are, for example, nicotine, caffeine, taurine, theine, vitamins such as B6 or B12 or C, melatonin, cannabinoids, or components, derivatives, or May include combinations. The active substance may include one or more components, derivatives or extracts of tobacco, cannabis or other botanicals.

In some embodiments, the active substance includes nicotine. In some embodiments, the active agent includes caffeine, melatonin, or vitamin B12.

As noted herein, the active substance may comprise or be derived from one or more herbal medicines or their constituents, derivatives or extracts. As used herein, the term "herbal medicine" means extracts, leaves, bark, fibers, stems, roots, seeds, flowers, fruits, pollen, husk. , shells, etc., and any material derived from plants. Alternatively, the material may contain active compounds naturally present in herbal medicines obtained synthetically. Examples of herbal medicines include tobacco, eucalyptus, star anise, hemp, cocoa, cannabis, fennel, lemongrass, peppermint, spearmint, rooibos, chamomile, and flax. ), ginger, ginkgo biloba, hazel, hibiscus, laurel, licorice (liquorice), matcha, mate, orange skin ), papaya, rose, sage, tea (e.g. green or black tea), thyme, clove, cinnamon, coffee, aniseed (anise), basil, bay leaf. (bay leaves), cardamom, coriander, cumin, nutmeg, oregano, paprika, rosemary, saffron, lavender, lemon peel, mint, juniper, elder. Elderflower, vanilla, wintergreen, beefsteak plant, curcuma, turmeric, sandalwood, cilantro, bergamot, orange blossom. blossom, myrtle, cassis, valerian, pimento, mace, damien, marjoram, olive, lemon balm ), lemon basil, chive, carvi, verbena, tarragon, geranium, mulberry, ginseng, theanine, theacrine ( theacrine, maca, ashwagandha, damiana, guarana, chlorophyll, baobab, or any combination thereof. Mint may be chosen from the following mint varieties: Mentha arvensis, Mentha c.v., Mentha niliaca, Mentha piperita, Mentha piperita citrata c.v. (Mentha piperita citrata c.v.), Mentha piperita c.v. (Mentha piperita c.v.), Mentha spicata crispa, Mentha cordifolia, Mentha longifolia, Mentha suablens Mentha suaveolens variegata, Mentha pulegium, Mentha spicata c.v. and Mentha suaveolens.

In some embodiments, the active agent comprises or is derived from one or more herbal medicines or their components, derivatives or extracts, and the herbal medicine is tobacco.

In some embodiments, the active substance comprises or is derived from one or more herbal medicines or their components, derivatives or extracts, and the herbal medicine is selected from eucalyptus, star anise, cocoa and hemp.

In some embodiments, the active agent comprises or is derived from one or more herbal medicines or their components, derivatives or extracts, and the herbal medicine is selected from rooibos and fennel.

In some embodiments, the substance to be delivered includes a flavor.

As used herein, the terms “flavour” and “flavourant” refer to the taste, aroma (or flavor) desired in a product for adult consumers, where local regulations allow. refers to materials that can be used to create aroma or other somatosensorial sensations. These include naturally occurring flavoring ingredients, plants, extracts of plants, synthetically obtained ingredients, or combinations thereof (e.g. tobacco, cannabis, licorice, hydrangea, eugenol, Japanese white bark magnolia leaf, chamomile, fenugreek, clove, maple, matcha, menthol, Japanese mint, aniseed, cinnamon, turmeric, Indian spices, Asian spices, herbs, wintergreen. , cherries, berries, red berries, cranberries, peaches, apples, oranges, mangoes, clementines, lemons, limes, tropical fruits, papaya, rhubarb, grapes, durian, dragon fruit, cucumbers, blueberries, mulberries, citrus fruits, Drambuie, bourbon, scotch, whiskey, gin, tequila, rum, spearmint, peppermint, lavender, aloe vera, cardamom, celery. , cascarilla, nutmeg, sandalwood oil, bergamot, geranium, khat, naswar, betel nut, hookah, pine, honey essence, rose oil, vanilla, lemon. Oil, orange oil, orange blossom, cherry blossom, cassia, caraway, cognac, jasmine, ylang-ylang, sage, fennel, wasabi, piment, ginger, coriander, Coffee, hemp, mint oil from any species of the genus Mentha, eucalyptus, star anise, cocoa, lemongrass, rooibos, flax, ginkgo, hazelnuts, hibiscus. , bay, mate, orange skin, rose, tea such as green or black tea, thyme, juniper, elderflower, basil, bay leaf, cumin, oregano. ), paprika, rosemary, saffron, lemon peel, mint, beefsteak plant, turmeric, coriander, myrtle, cassis, valerian. , pimento, mace, damien, marjoram, olive, lemon balm, lemon basil, chive, carvi, verbena. (verbena, tarragon, limonene, thymol, camphene), flavor enhancers, bitter receptor site blockers, sensory receptor site activators or irritants, sugars and/or Sugar substitutes (e.g., sucralose, acesulfame potassium, aspartame, saccharin, cyclamates, lactose, sucrose, glucose, fructose, sorbitol, or mannitol), and other additives , such as charcoal, chlorophyll, minerals, herbal medicines, or breath fresheners. These may be imitation, synthetic or natural components or blends thereof. These may be in any suitable form, for example liquids such as oils, solids such as powders or gases.

In some embodiments, the flavor includes menthol, spearmint, and/or peppermint. In some embodiments, the flavor includes flavor components of cucumber, blueberry, citrus, and/or red berry. In some embodiments, the flavor includes eugenol. In some embodiments, the flavor includes flavor components extracted from tobacco. In some embodiments, the flavor includes flavor components extracted from cannabis.

In some embodiments, flavor is a sensation intended to achieve a somatosensory sensation that is generally chemically induced and perceived by stimulation of the fifth cranial nerve (trigeminal nerve), in addition to or instead of the scent or taste nerves. These may include agents that provide heating, cooling, tingling, and numbing effects. A suitable thermogenic agent may be, but is not limited to, vanillyl ethyl ether, and a suitable cooling agent may be, but is not limited to, eucalyptol, WS-3.

An aerosol-generating material is a material that is capable of generating an aerosol, for example, when energized, irradiated or heated in any other way. Aerosol-generating materials may, for example, be in the form of solids, liquids or gels, which may or may not contain active substances and/or flavoring agents. 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 that can retain some fluid, such as a liquid, inside them. In some embodiments, the aerosol generating material may comprise, for example, about 50 wt%, 60 wt%, or 70 wt% amorphous solids to about 90 wt%, 95 wt%, or 100 wt% amorphous solids. there is.

The aerosol-generating material may include one or more active substances and/or flavors, one or more aerosol former materials, and optionally one or more other functional materials.

The aerosol former material may include one or more ingredients capable of forming an aerosol. In some embodiments, the aerosol former material is glycerin, glycerol, propylene glycol, diethylene glycol, triethylene glycol, tetraethylene glycol, 1,3-butylene glycol, erythritol, meso-erythritol, ethyl vanillatate. , ethyl laurate, diethyl subrate, triethyl citrate, triacetin, diacetin mixture, benzyl benzoate, benzyl phenyl acetate, tributyrin, lauryl acetate, lauric acid, myristic acid, and propylene carbonate. It may contain more than one.

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 within a support to form the substrate. The support may be or include, for example, paper, card, paperboard, cardboard, reconstituted material, plastic material, ceramic material, composite material, glass, metal, or metal alloy. You can. In some embodiments, the support includes a susceptor. In some embodiments, the susceptor is embedded within the material. In some alternative embodiments, the susceptor is on one or both sides of the material.

A consumable is an article that contains or consists of aerosol-generating materials, some or all of which are intended to be consumed during use by a user. The consumable may include one or more other components, such as an aerosol-generating material storage region, an aerosol-generating material delivery component, an aerosol-generating region, a housing, a wrapper, a mouthpiece, a filter, and/or an aerosol modifier. The consumable may also include an aerosol generator, such as a heater, which emits heat to cause the aerosol generating material to generate an aerosol upon use. The heater may comprise, for example, a combustible material, a material heatable by electrical conduction, or a susceptor.

A susceptor is a material that can be heated by penetration by a changing magnetic field, such as an alternating magnetic field. The susceptor may be an electrically conductive material, such that its penetration by a changing magnetic field causes inductive heating of the heating material. The heating material may be a magnetic material, such that its penetration by a changing magnetic field causes magnetic hysteresis heating of the heating material. The susceptor can be both electrically conductive and magnetic, so that the susceptor can be heated by both heating mechanisms. A device configured to generate a changing magnetic field is referred to herein as a magnetic field generator.

An aerosol modifier is a substance designed to modify the produced aerosol, for example by altering the taste, flavor, acidity or other properties of the aerosol. The aerosol modifier may be provided in an aerosol modifier release component operable to selectively release the aerosol modifier.

Aerosol modifiers may be, for example, additives or adsorbents. Aerosol modifiers may include, for example, one or more of flavorants, colorants, water, and carbon adsorbents. Aerosol modifiers may be solid, liquid or gel, for example. Aerosol modifiers may be in powder, thread or granular form. The aerosol modifier may be free of filtration material.

An aerosol generator is a device configured to produce an aerosol from an aerosol generating material. In some embodiments, the aerosol generator is a heater configured to apply thermal energy to the aerosol-generating material to release one or more volatile substances from the aerosol-generating material to form an aerosol. In some embodiments, the aerosol generator is configured to generate an aerosol from an aerosol generating material without heating. For example, an aerosol generator may be configured to apply one or more of vibration, increased pressure, or electrostatic energy to the aerosol generating material.

Articles, for example articles in the shape of rods, are often named according to product length: "regular" (typically in the range of 68 to 75 mm, for example in the range of about 68 mm to about 72 mm), "short" or “mini” (68 mm or less), “king-size” (typically in the range of 75 to 91 mm, for example, from about 79 mm to about 88 mm), “long” or “ “super-king” (typically ranging from 91 to 105 mm, for example from about 94 mm to about 101 mm) and “extra-long” (typically ranging from about 110 mm to about 121 mm).

They are also named according to the product circumference: “regular” (about 23 to 25 mm), “wide” (above 25 mm), “slim” (about 22 to 23 mm), “demi-slim”. “demi-slim” (about 19 to 22 mm), “super-slim” (about 16 to 19 mm), and “micro-slim” (less than about 16 mm).

Accordingly, an article in king-size, super-slim format would, for example, have a length of about 83 mm and a perimeter of about 17 mm.

Each type can be produced with mouthpieces of different lengths. The mouthpiece length will be approximately 30 mm to 50 mm. A tipping paper connects the mouthpiece to the aerosol generating material and will generally have a longer length than the mouthpiece, for example 3 mm to 10 mm longer, so that the tipping paper covers the mouthpiece, It then overlaps the aerosol-generating material, for example in the form of a rod of base material, and connects the mouthpiece to the rod.

The articles described herein and their aerosol-generating materials and mouthpieces may be manufactured in any of the above formats, but are not limited to this.

As used herein, the terms 'upstream' and 'downstream' are relative terms defined with respect to the direction of the mainstream aerosol being drawn through the article or device in use.

The filament tow materials described herein may include cellulose acetate fiber tow. In addition, filament tows include polyvinyl alcohol (PVOH), polylactic acid (PLA), polycaprolactone (PCL), and poly(1-4 butanediol succinate). 4 butanediol succinate) (PBS), poly(butylene adipate-co-terephthalate) (PBAT), starch-based materials, cotton, aliphatic polyester materials and polysaccharides. It can be formed using other materials used to form fibers, such as polymers or combinations thereof. The filament tow may be plasticized with a plasticizer suitable for the tow, such as triacetin if the material is a cellulose acetate tow, or the tow may be unplasticized. The tows can be of different cross sections such as 'Y' shape or 'X' shape, filamentary denier values of 2.5 to 15 denier per filament, for example 8.0 to 11.0 denier per filament and 5,000 to 50,000, e.g. It can have any suitable specification, such as fibers having total denier values from 10,000 to 40,000.

As used herein, the term “tobacco material” refers to any material including tobacco or derivatives or substitutes thereof. The term “tobacco material” may include one or more of tobacco, tobacco derivatives, puffed 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 lamina, reconstituted tobacco, and/or tobacco extract.

In the drawings described herein, like reference numbers are used to illustrate equivalent features, items or components.

1 is a cross-sectional side view of an article 1 for use as part of a non-flammable aerosol delivery system.

The article (1) consists of a cylindrical rod of aerosol-generating material (3) (in this case tobacco material) and a downstream part (in this case a mouse) which is connected to the aerosol-generating material (3) so as to be downstream of the aerosol-generating material (3). (referred to as piece 2). The aerosol-generating material 3 provides an aerosol, for example, when heated within a non-flammable aerosol-providing device as described herein, e.g., a non-flammable aerosol-providing device forming a system comprising a coil. In other embodiments, article 1 may comprise its own heat source, forming an aerosol presentation system without the need for a separate aerosol presentation device.

The aerosol-generating material 3, also referred to herein as the aerosol-generating substrate 3, comprises at least one aerosol former material. In this example, the aerosol former material is glycerol. In alternative examples, the aerosol former material may be another material or a combination thereof as described herein, such as propylene glycol.

In this example, the mouthpiece comprises a tubular portion 4a formed by a hollow tube, also referred to in this example as a cooling element. In this example, the mouthpiece 2 comprises a component comprising a body of material 6 downstream of the tubular portion 4a. In this example, the material body 6 is adjacent to the tubular portion 4a and is in abutting relationship with the tubular portion 4a. The material 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 component is formed from crimped sheet material. In this example, the body of material includes a crimped sheet material formed with a crimp pattern comprising a series of substantially parallel ridges and grooves, with an average spacing between adjacent ridges greater than about 0.3 mm. Additionally, in this example, the crimp amplitude is less than about 0.7 mm. In other examples, the sheet material may include an average spacing between adjacent ridges greater than about 0.3 mm or a crimp amplitude less than about 0.7 mm. Alternatively, the crimp amplitude may be between 0.7 mm and 1.2 mm. In any of these examples, the average density of the body of material may be from about 0.1 to about 0.25 mg/mm3.

Crimp amplitude (also known as “crimping factor”) refers to the depth of the grooves in the crimping forms of the sheet material forming the body. That is, crimping the sheet material creates a plurality of peaks and troughs in the sheet material when viewed from the first side of the sheet material, as shown in FIG. 2B, with a crimp depth 'A' ' is the depth of the valleys measured from these peaks. The crimping may form a 'zigzag' shape or other shapes. In some embodiments, adjacent grooves of the crimped sheet material are spaced apart by a distance in the range of 0.3 to 2 mm and preferably in the range of 0.4 to 1 mm or have a pitch 'P'. In some embodiments, adjacent grooves of the crimped sheet material are spaced apart by a distance of at least 0.4 mm or at least 0.5, 0.6, 0.7 or 0.8 mm. In some embodiments, adjacent grooves of the crimped sheet material 10 are spaced apart by a distance of at most 1.5 mm, preferably at most 1.4, 1.3, 1.2, 1.1 or 1.0 mm. For example, the sheet material may have crimps with a crimp amplitude of less than a distance of 500 μm and a spacing between peaks (or troughs) of at least 300 μm, at least 400 μm, or at least 500 μm.

In some embodiments, sheet material 10 is heated as it is crimped. For example, sheet material 10 may be passed between crimping rollers, with one or both of the crimping rollers being heated.

Advantageously, sheet materials, such as paper, having the above crimp pitch and/or amplitude have been found to exhibit improved performance when used in components of aerosol delivery systems. In particular, this relatively low level of crimp pitch and amplitude surprisingly causes the material body to have a lower pressure drop compared to bodies formed from sheet material with a higher level of crimping.

In this example, the density of the material body 6 is about 0.19 mg/mm3. In some embodiments, body 6 has a density of at least 0.1 mg/mm3, 0.12 mg/mm3, or 0.15 mg/mm3. Alternatively or additionally, the body of material 6 may have a density of less than about 0.3 mg/mm3, less than about 0.25 mg/mm3, or less than about 0.22 mg/mm3. Advantageously, the density of the body of material may be from about 0.15 mg/mm3 to about 0.25 mg/mm3. These values include any additives contained within the material body 6. Before being crimped and formed into a body of material, the sheet material may have a density of about 0.2 to 0.5 mg/mm3, such as about 0.25, 0.30 or 0.35 mg/mm3.

In some embodiments, the sheet material includes fibers having a length ranging from 2 mm to 6 mm. Such fibers have the advantage of resulting in a material that is not prone to absorbing and retaining aerosol formers (e.g. glycerol as in this example) and/or aerosol modifiers (e.g. menthol). Accordingly, a body of material comprising such fibers may allow greater amounts of aerosol former and/or aerosol modifier to pass through the body of material and into the user's mouth. In some embodiments, the body of material includes fibers having a length ranging from 2 mm to 5 mm, 2 mm to 4 mm, or 2 mm to 3 mm.

The body of material includes fibers having one or more of the following lengths: about 2 mm, about 2.5 mm, about 3 mm, about 3.5 mm, about 4 mm, about 4.5 mm, about 5 mm, about 5.5 mm, and about 6 mm. can do.

Fiber length can be measured according to a suitable standard, and the fiber lengths given above can be the length-weighted mean value of the fiber lengths.

(TM)에 의해 제조된 CU-20 필터 제조 기계를 사용하여 제조될 수 있다. 그러나, 당업자는 재료 본체(6)를 제조하기 위해 다른 기계가 사용될 수 있음을 이해할 것이다.The material body 6 may be formed from a continuous web of sheet material 6A. In this example, the sheet material 6A is gathered together to form the material body 6 in a manner similar to a 'crepe filter'. Sheet material (6A) is Decoufl

It can be manufactured using the CU-20 filter manufacturing machine manufactured by (TM). However, those skilled in the art will understand that other machines may be used to manufacture the material body 6.

In this example, sheet material 6A includes cellulose. In this example, sheet material 6A is paper.

In some embodiments, the continuous web of sheet material 6A has a width of at least 60 mm, at least 70 mm, at least 80 mm, at least 90 mm, at least 100 mm, at least 110 mm, or at least 120 mm.

In some embodiments, the continuous web of sheet material 6A has a width of at most 240 mm, at most 230 mm, at most 220 mm, at most 210 mm, at most 200 mm, or at most 190 mm.

In some embodiments, the sheet material has a width ranging from 120 mm to 200 mm, from 150 mm to 190 mm, from 160 mm to 190 mm, or from 160 mm to 180 mm.

The sheet material may have a thickness of about 50 to about 100 μm, or about 60 to about 90 μm. In one example, the sheet material is paper with a thickness of 60 to 70 μm and a basis weight of 30 to 40 grams/m2.

Sheet material 6A may additionally or alternatively comprise different materials. For example, in some embodiments, sheet material 6A includes a reconstituted tobacco formed from sheet material 6A arranged to form a body 6 of material. Reconstituted tobacco contains cellulose. In another embodiment (not shown), the reconstituted cigarette is made into a uniform plug of material forming the body 6. The reconstituted cigarette may optionally be a paper reconstituted cigarette.

In some embodiments, sheet material 6A includes paper having a basis weight in the range of 15 to 80 gsm or in the range of 20 to 50 gsm.

In some embodiments, sheet material 6A has a basis weight of at least 15 gsm, at least 20 gsm, at least 25 gsm, or at least 30 gsm.

In some embodiments, the sheet material has a basis weight of 100 gsm or less, 90 gsm or less, 80 gsm or less, or 70 gsm or less. Preferably, the sheet material has a basis weight of 60 gsm or less, 50 gsm or less, or 40 gsm or less.

In some embodiments, the sheet material has a basis weight in the range of 20 to 40 gsm, in the range of 24 to 36 gsm, or in the range of 30 to 40 gsm.

The material body 6 is wrapped in a first plug wrap 7 . In this example, the tubular portion 4a and the material body 6 are joined using a second plug wrap 9 wrapped around both sections. A tipping paper (5) is wrapped around the entire length of the mouthpiece (2) and over a portion of the rod of aerosol-generating material (3), therein to connect the mouthpiece (2) and the rod (3). Has adhesive on the surface.

In this example, the tubular portion 4a is formed from a plurality of paper layers wound in parallel, with butted seams, to form a hollow tube. In this example, the first and second paper layers are provided in a two-ply tube, but in other examples three, four or more paper layers may be used to form three, four or more ply tubes. . Other structures may be used, such as spirally wound paper layers, cardboard tubes, tubes formed using a papier mace type 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 up to about 2 mm, between 200 μm and 1.5 mm, or between 250 μm and 1 mm. In this example, the tubular portion has a wall thickness of approximately 300 μm. The “wall thickness” of the tubular section corresponds to the thickness of the wall of the tubular section in the radial direction. This can be measured using a caliper, for example.

The article 1 has a ventilation level of about 75% of the aerosols drawn through the article. In alternative embodiments, the article may have a ventilation level of 50% to 80%, such as 65% to 75%, of the aerosol drawn through the article. Ventilation at these levels helps to slow the flow of aerosol drawn through the mouthpiece 2, thereby allowing the aerosol to cool sufficiently before reaching the downstream end 2b of the mouthpiece 2. do. Ventilation is provided directly to the mouthpiece (2) of the article (1). In the present example, ventilation is provided in the tubular part 4a, which has been found to be particularly advantageous in assisting the aerosol generation process. The ventilation is provided by first and second parallel rows of ventilation holes 12, formed in this case with laser perforations, at positions 13.925 mm and 14.625 mm respectively from the downstream mouth-end 2b of the mouthpiece 2. ) is provided through. These ventilation holes 12 pass through the tipping paper 5, the second plug wrap 9 and the tubular part 4a. In alternative embodiments, ventilation may be provided to the mouthpiece at other locations. For example, ventilation can be provided in the material body 6.

Alternatively, ventilation may be provided through a single row of ventilation holes, for example laser perforations, into the part of the article where the tubular body 4a is located. This has been found to improve aerosol formation, which is believed to result in airflow through the vent holes being more uniform than multiple rows of vent holes for a given ventilation level.

In some examples, the aerosol-generating material 3 described herein is a first aerosol-generating material and the tubular portion 4a may include a second aerosol-generating material. In one example, the wall 4b of the tubular portion 4a includes a second aerosol-generating material. For example, the second aerosol-generating material may be disposed on the inner surface of the wall 4b of the tubular portion 4a.

The second aerosol-generating material includes at least one aerosol former material and may also include at least one aerosol modifier, or other sensory material. The aerosol former material and/or aerosol modifier may be any aerosol former material or aerosol modifier as described herein, or a combination thereof.

As the aerosol generated from the aerosol-generating material 3 (herein referred to as the first aerosol) is drawn through the tubular portion 4a of the mouthpiece, heat from the first aerosol forms an aerosol of the second aerosol-generating material. The material can be aerosolized to form a second aerosol. The second aerosol may include a flavoring agent, which may be any of the flavoring agents described herein and may be additional or complementary to the flavor of the first aerosol.

Providing a second aerosol generating material on the tubular body 4a may result in the creation of a second aerosol that boosts or complements the flavor or visual appearance of the first aerosol.

In this example, article 1 has a circumference of approximately 21 mm (i.e., the article is in demi-slim format). In some embodiments, article 1 has a rod of aerosol-generating material having a perimeter greater than 19 mm. This was found to provide sufficient circumference to produce an improved and sustained aerosol compared to the typical aerosol generation sessions preferred by consumers. As the article is heated, heat is transferred through the rod of aerosol-generating material 3 to volatilize its components, and perimeters greater than 19 mm have been found to be particularly effective in generating aerosols in this way. Because the article must be heated to release the aerosol, improved heating efficiency can be achieved using articles with perimeters of less than about 23 mm. To achieve improved aerosol through heating while maintaining appropriate product length, rod circumferences greater than 19 mm and less than 23 mm are suitable. In some examples, the rod circumference may be between 20 mm and 22 mm, which has been found to provide a good balance between providing effective aerosol delivery while allowing efficient heating.

The circumference of the mouthpiece 2 is substantially identical to the 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 approximately 20.8 mm.

In some examples, tipping paper 5 includes citrate, such as sodium citrate or potassium citrate. In these examples, the tipping paper 5 may have a citrate content of less than 2% by weight, or less than 1% by weight. 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 5 mm above the rod of aerosol generating material 3, but it could alternatively extend between 3 mm and 10 mm, or 4 mm and 6 mm above the rod 3, Provides a secure attachment between mouthpiece (2) and rod (3). The tipping paper 5 may have a higher basis weight than the basis weight of the plug wraps used in the article 1, for example the basis weight is 40 gsm to 80 gsm, or 50 gsm to 70 gsm, and In the example it is 58 gsm. These ranges of basis weights have been found to allow the tipping papers to have acceptable tensile strength while being flexible enough to wrap around the article 1 and adhere to itself along the longitudinal lap seam on the paper. Once wrapped around the mouthpiece 2, the outer circumference of the tipping paper 5 is approximately 21 mm.

In some embodiments, first plug wrap 7 has a basis weight of less than 50 gsm, such as about 20 gsm to 40 gsm. However, it should be appreciated that the basis weight of the first plug wrap 7 could be higher to increase the hardness of the mouthpiece. For example, the basis weight of the first plug wrap 7 may be at least 50 gsm, at least 60 gsm, at least 70 gsm, at least 80 gsm, at least 90 gsm, or at least 100 gsm. In some embodiments, the basis weight of first plug wrap 7 ranges from 50 gsm to 110 gsm, or from 60 gsm to 100 gsm.

In some embodiments, first plug wrap 7 has a basis weight of at least 20 gsm or at least 30 gsm. In some embodiments, first plug wrap 7 has a basis weight of up to 120 gsm, 110 gsm, or 100 gsm. In some embodiments, the first plug wrap 7 has a basis weight ranging from 20 gsm to 120 gsm, preferably ranging from 30 to 100 gsm.

In some embodiments, the first plug wrap 7 has a thickness of 30 μm to 60 μm, or 35 μm to 45 μm. However, it should be appreciated that the thickness weight of the first plug wrap 7 may be higher to increase the hardness of the mouthpiece. In some embodiments, for example, the thickness of first plug wrap 7 may be at least 40 microns, 50 microns, 60 microns, 70 microns, 80 microns, 90 microns or 100 microns. In some embodiments, the thickness of first plug wrap 7 ranges from 40 microns to 120 microns, or from 50 to 100 microns.

In some embodiments, the first plug wrap 7 is a non-porous plug wrap, such as having a permeability of less than 100 Coresta units, such as less than 50 Coresta units. However, in other embodiments, the first plug wrap 7 may be a porous plug wrap, for example with a permeability greater than 200 Coresta units.

In some embodiments, the length of the material body 6 is less than about 20 mm. In this example, the length of the material body 6 is approximately 12 mm.

In some embodiments, the axial length of the material body 6 ranges from 10 mm to 20 mm.

In some embodiments, an aerosol former material is applied to the material body 6. For example, an aerosol former material may be applied to sheet material 6A before sheet material 6A is folded to form body 6 of material. The aerosol former material can be applied by spraying or brushing the sheet material 6A or by dipping the sheet material 6A into the aerosol former material.

In some embodiments, the aerosol former material is glycerin, glycerol, propylene glycol, diethylene glycol, triethylene glycol, tetraethylene glycol, 1,3-butylene glycol, erythritol, meso-erythritol, ethyl vanillatate. , ethyl laurate, diethyl subrate, triethyl citrate, triacetin, diacetin mixture, benzyl benzoate, benzyl phenyl acetate, tributyrin, lauryl acetate, lauric acid, myristic acid, and propylene carbonate. It may contain more than one. For example, the aerosol former material may include triacetin and/or triethyl citrate.

In some embodiments, at least 0.02 mg of aerosol former material is applied to the body of material per 1 mm of axial length of the body of material. In some embodiments, at least 0.03 mg, at least 0.04 mg, or at least 0.05 mg of the aerosol former material is applied to the body of material per mm of the axial length of the body of material.

In some embodiments, no more than 0.5 mg of aerosol former material is applied to the body of material per mm of the axial length of the body of material. In some embodiments, no more than 0.4 mg or no more than 0.3 mg of aerosol former material is applied to the body of material per mm of the axial length of the body of material.

At least a portion of the aerosol former material binds with the aerosol as it passes through the body of material 6 and helps the aerosol feel less dry in the user's mouth.

In some embodiments, the material body 6 has an external volume of at least 115 mm3. In this example, the material body 6 is generally cylindrical and therefore has a generally cylindrical outer volume. It should be appreciated that in other embodiments, the material body 6 may have an external volume of less than 115 mm3.

In this example, the width W1 of the material body 6 (which in this example corresponds to the diameter of the material body 6) is about 6.36 mm and the axial length L1 of the material body 6 is 12 mm. . Accordingly, the external volume of the material body 6 is approximately 381 mm 3 .

The material body (6A) comprising cellulose and having a volume of at least 115 mm 3 is configured to remove moisture from the aerosol generated by the aerosol-generating material (3) as the aerosol passes through the material body (6A) of the mouthpiece (2). It has been found to be helpful. That is, the cellulose-retaining sheet material 6A absorbs water from the aerosol. Removing moisture from the aerosol makes the aerosol feel cooler in the user's mouth.

In some embodiments, the material body 6 has a volume of at least 19 mm3 per mm of axial length of the material body, of at least 25 mm3 per mm of axial length, or of at least 30 mm3 per mm of axial length of the material body. For example, if the material body 6 has a volume of 19 mm3 per mm of axial length and a length L1 of 10 mm, the volume of the material body may be 190 mm3.

A larger volume of material body 6A will generally be more effective in removing moisture from the aerosol. In some examples, the external volume of the material body 6 is at least 200 mm3, at least 300 mm3, at least 400 mm3, at least 500 mm3, at least 600 mm3, at least 700 mm3, at least 800 mm3, at least 900 mm3, or at least 1000 mm3.

In some embodiments, the axial length L1 of the material body 6 is at least 4 mm, at least 5 mm, at least 6 mm, at least 7 mm, at least 8 mm, at least 9 mm, or at least 10 mm.

In some embodiments, the axial length L1 of the material body 6 ranges from about 5 mm to 20 mm, 6 mm to 15 mm, or 8 mm to 14 mm.

In some embodiments, the width W1 of the material body 6 is at least 4 mm, at least 5 mm, at least 6 mm, at least 7 mm, at least 8 mm, or at least 9 mm.

In some embodiments, the perimeter of the material body 6 is at least 16 mm, at least 18 mm, at least 20 mm, at least 22 mm, at least 25 mm, or at least 26 mm.

In some embodiments, the pressure drop across the material body 6 is at least 2 mmH ₂ O, at least 3 mmH ₂ O, or at least 4 mmH ₂ O. The pressure drop across the material body may be at least 5 mmH ₂ O, at least 6 mmH ₂ O, at least 7 mmH ₂ O, at least 8 mmH ₂ O, at least 9 mmH ₂ O, at least 10 mmH ₂ O or at least 11 mmH ₂ O. there is.

In some embodiments, the pressure drop across the material body 6 is less than 30 mmH ₂ O, less than 28 mmH ₂ O, or less than 25 mmH ₂ O.

In some embodiments, the pressure drop across the material body 6 is about 20 mmH ₂ O, 23 mmH ₂ O or 28 mmH ₂ O.

In some embodiments, the pressure drop across the material body 6 is between 10 mmH ₂ O and 30 mmH ₂ O, or between 15 mmH ₂ O and 25 mmH ₂ O.

In some embodiments, the pressure drop across the material body 6 is at least 1.0 mmH ₂ O per mm of the axial length of the material body 6. In some embodiments, the pressure drop across the material body 6 is at least 1.2 mmH ₂ O, 1.5 mmH ₂ O, or 1.8 mmH ₂ O per mm of the axial length of the material body 6.

In some embodiments, the pressure drop across the material body 6 is 3.0 mmH ₂ O, 2.8 mmH ₂ O, or 2.6 mmH ₂ O per mm of the axial length of the material body 6. In some embodiments, the pressure drop across the material body 6 is 2.5 mmH ₂ O, 2.4 mmH ₂ O, or 2.3 mmH ₂ O per mm of the axial length of the material body 6.

In some embodiments, the pressure drop across the material body 6 ranges from 1.5 mmH ₂ O to 2.5 mmH ₂ O per mm axial length of the material body 6, It ranges from 1.6 to 2.4 mmWG.

In some embodiments, the mass of the material body 6 is at least 50 mg, at least 60 mg, or at least 70 mg. Advantageously, it has been found that providing a higher mass of the material body 6 increases the amount of moisture absorbed from the aerosol. In this example, the mass of the body of material is approximately 75 mg.

In some embodiments, the mass of the body of material 6 is less than 150 mg, less than 100 mg, less than 85 mg, or less than 80 mg.

In some embodiments, the material body 6 has a weight of at least 2 mg per mm of the axial length of the material body. In some embodiments, the material body 6 has a weight of at least 3 mg per mm of axial length or at least 4 mg per mm of axial length.

In this example, the material body 6 has a weight of approximately 6 mg per mm. That is, if the material body 6 has an axial length L1 of 12 mm as in this example, the total mass of the material body 6 will be about 74 mg.

In some embodiments, the material body 6 is a solid cylindrical material body.

In some embodiments, 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) is 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 can be measured according to the following protocol. When the hardness of a section is referred to herein, the hardness is as determined by the following measurement process. Any suitable device, such as a Borgwaldt Hardness Tester (H10), can be used to perform the measurements.

Hardness is defined as the ratio between the height of the body (h0) and the height of the body (h1) under a specified load, which is expressed as a percentage of h0. Hardness can be expressed as:

Hardness = (h1/h0) × 100

In the case of individual bodies or bodies held on multi-section rods, the hardness measurement is performed at the longitudinal center point of the body.

Load bars are used to apply specified loads to the body. The length of the load bar should be significantly longer than the length of the specimen to be measured. Before the hardness measurement, the body to be measured is conditioned according to ISO 3402 for at least 48 hours and maintained at environmental conditions according to ISO 3402 during the measurement.

To perform hardness measurements, the body is placed in the hardness tester H10, a pre-load of 2 g is applied to the body, and after 1 second, the initial height of the body under the preload of 2 g (h0) ) is recorded. The preload is then removed, a load bar carrying a load of 150 g is lowered onto the sample at a rate of 0.6 mm/s, and after 5 seconds, the height h1 of the body is measured under a load of 150 g.

The hardness of the mouthpiece is determined as the average hardness of at least 20 mouthpieces measured according to this protocol.

Additionally, the hardness of the material body 6 surrounded by the first plug wrap 7 (hereinafter together referred to as “components” for purposes of determining the hardness) is determined by determining the hardness of the material body 6 surrounded by the first plug wrap 7. (6) can be determined using the above protocol by carefully cutting the article to remove it. The hardness of the component is 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 It may be 91% or at least 92%.

The expression “roundness” refers to the percent correspondence of the cross-sectional shape of an article/component to a complete circle. Roundness is calculated according to Equation 1 below.

[Equation 1]

To determine the roundness of the article 1, the largest outer diameter "X" of the component is measured using a caliper and the smallest outer diameter "Y" of the article is measured using a caliper (diameters perpendicular to the axis). 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 article 1 is at least 90%, at least 91%, at least 92%, at least 93%, at least 94%, or at least 95%.

Additionally, the hardness of the material body 6 surrounded by the first plug wrap 7 (hereinafter together referred to as “components” for purposes of determining the roundness) depends on the hardness of the material body 6 surrounded by the first plug wrap 7. (6) can be determined using the above protocol by carefully cutting the article to remove it.

To determine the roundness of the material body 6 surrounded by the first plug wrap 7 (hereinafter together referred to as the "component" for the purpose of determining the roundness), the maximum outer diameter "X" of the component is determined by using a caliper. and the minimum outer diameter "Y" of the component is measured using a caliper (diameters are perpendicular to the central axis of the component). The smaller the deviation between the maximum outer diameter (X) and the minimum outer diameter (Y) of a 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 material body 6 surrounded by the first plug wrap 7) is at least 90%, at least 91%, at least 92%, at least 93%, at least 94%. % or at least 95%.

Increased roundness of the article/component helps ensure that downstream parts can be processed, as otherwise downstream parts that are too oval may become blocked or misaligned in the manufacturing machine.

The first and/or second plug wraps (7, 9) are attached to the component(s) of the article by adhesive applied to a lap seam extending longitudinally along the first and/or second plug wraps. Can be glued to surroundings. The first and/or second plug wraps 7, 9 may alternatively or additionally be glued directly to the underlying component(s) using adhesive. In both cases, the adhesive may be selected to be a water-soluble adhesive to aid in degradation of the component(s). Additionally or alternatively, the first and/or second plug wraps 7, 9 may themselves be made of paper or paper having improved degradability, e.g. improved dispersibility when exposed to water. Can be formed from different materials.

Biodegradability can be measured according to the procedures set out under ISO 14855. Components as described herein can achieve greater than 50% biodegradation within 30 days when exposed to fresh water or marine water.

In some embodiments, the length of tubular portion 4a is less than about 50 mm. In some embodiments, the length of tubular portion 4a is less than about 40 mm. In some embodiments, the length of tubular portion 4a is less than about 35 mm. Additionally, or alternatively, the length of tubular portion 4a is at least about 10 mm. In some embodiments, the length of tubular portion 4a is at least about 15 mm.

In some embodiments, the length of tubular portion 4a is about 15 mm to about 35 mm, about 20 mm to about 30 mm, about 23 mm to about 29 mm, or about 25 mm or about 29 mm. In this example, the length of the tubular portion 4a is 25 mm.

In some embodiments, the second plug wrap 9 has a basis weight of less than about 50 gsm. In some embodiments, the second plug wrap 9 has a basis weight of about 20 gsm and 45 gsm. However, it should be appreciated that the basis weight of the second plug wrap 9 may be higher to increase the hardness of the mouthpiece. For example, the basis weight of the second plug wrap 9 may be at least 50 gsm, at least 60 gsm, at least 70 gsm, at least 80 gsm, at least 90 gsm, or at least 100 gsm. In some embodiments, the basis weight of the second plug wrap 9 ranges from 50 gsm to 110 gsm, or from 60 gsm to 100 gsm.

In some embodiments, the second plug wrap 9 has a basis weight of at least 10 gsm, at least 15 gsm, at least 20 gsm, or at least 25 gsm.

In some embodiments, the second plug wrap 9 has a basis weight of less than 40 gsm, less than 35 gsm, or less than 30 gsm.

In some embodiments, the second plug wrap 9 has a basis weight in the range of 10 to 40 gsm, in the range of 15 to 35 gsm, in the range of 20 to 30 gsm, or in the range of 25 to 30 gsm. In some embodiments, the basis weight of the second plug wrap 9 is about 27 gsm.

In some embodiments, the second plug wrap 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 plug wrap 9 may be higher to increase the hardness of the mouthpiece. In some embodiments, for example, the thickness of the second plug wrap 9 may be at least 40 microns, at least 50 microns, at least 60 microns, at least 70 microns, at least 80 microns, at least 90 microns, or at least 100 microns. . In some embodiments, the thickness of the second plug wrap 9 ranges from 40 microns to 120 microns, or from 50 microns to 100 microns.

In some embodiments, the second plug wrap 9 is a non-porous plug wrap with a permeability of less than 100 Coresta units, such as less than 50 Coresta units. However, in alternative embodiments, the second plug wrap 9 may be a porous plug wrap, for example with a permeability greater than 200 Coresta units.

The tubular portion 4a is positioned around and defines an air gap in the mouthpiece 2, which acts as a cooling segment. The air gap provides a chamber in which the heated volatilized components generated by the aerosol generating material 3 flow. The tubular portion 4a is hollow to provide a chamber for aerosol accumulation, but is sufficiently rigid to withstand axial compressive forces and bending moments that may occur during manufacturing and while the article 1 is in use. The tubular portion (4a) provides a physical displacement between the aerosol-generating material (3) and the material body (6). The physical displacement provided by the tubular portion 4a will provide a thermal gradient over the length of the tubular portion 4a.

In some embodiments, mouthpiece 2 includes a cavity having an internal volume greater than 450 mm3. It has been found that providing a cavity of at least this volume allows for improved aerosol formation. This cavity size provides sufficient space within the mouthpiece to allow the heated volatilized components to cool and thus heat the aerosol-generating material to higher temperatures than would otherwise be possible, as these may generate an aerosol that is too warm. Allows exposure. In this example, the cavity is formed by the tubular portion 4a, but in alternative arrangements it could be formed in another part of the mouthpiece 2. In some embodiments, the mouthpiece 2 comprises a cavity formed, for example, in the tubular portion 4a, the cavity having an internal volume of greater than 500 mm3, such as greater than 550 mm3, allowing further refinement of the aerosol. In some embodiments, the internal cavity includes a volume of about 550 mm3 to about 850 mm3, or about 600 mm3 to about 800 mm3. In this example, the internal cavity of the tubular portion 4a has a volume of approximately 762 mm3.

The tubular portion 4a has a temperature difference of at least 40 degrees Celsius between the heated volatilized component entering the first upstream end of the tubular portion 4a and the heated volatilized component exiting the second downstream end of the tubular portion 4a. It can be configured to provide. In some embodiments, the tubular portion 4a is positioned between the heated volatilized component entering the first upstream end of the tubular portion 4a and the heated volatilized component exiting the second downstream end of the tubular portion 4a. and configured to provide a temperature difference of at least 60 degrees Celsius, at least 80 degrees Celsius, or at least 100 degrees Celsius. This temperature difference over the length of the tubular portion 4a protects the temperature-sensitive body material 6 from the high temperatures of the aerosol-generating material 3 when heated.

In alternative articles, the tubular part 4a can be replaced by an alternative cooling element, for example an element formed from a material body that allows the aerosol to pass through it in the longitudinal direction and also performs the function of cooling the aerosol.

The mouthpiece 2 of the article 1 includes an upstream end 3a adjacent the aerosol-generating substrate 3 and a downstream end 2b distal from the aerosol-generating substrate 3.

The pressure drop or difference (also called resistance to draw) across the mouthpiece, such as the portion of the article 1 downstream of the aerosol generating material 3, is less than about 40 mmH ₂ 0. It has been found that this pressure drop allows sufficient aerosol containing desirable compounds, such as flavor compounds, to be delivered to the consumer through the mouthpiece 2. In some embodiments, the pressure drop across mouthpiece 2 is less than about 20 mmH ₂ 0. In some embodiments, particularly improved aerosols have been achieved using a mouthpiece 2 with a pressure drop of less than 15 mmH ₂ 0, such as about 6 mmH ₂ 0, about 10 mmH ₂ 0 or about 14 mmH ₂ 0. . Alternatively or additionally, the mouthpiece pressure drop may be at least 3 mmH ₂ 0, at least 4 mmH ₂ 0, or at least 5 mmH ₂ 0. In some embodiments, the mouthpiece pressure drop can be between about 5 mmH ₂ 0 and 20 mmH ₂ 0 or between about 5 mmH ₂ 0 and 15 mmH ₂ 0. 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 it reaches the downstream end 2b of the mouthpiece 2. do.

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, wrapper 10 is substantially impermeable to air. In alternative embodiments, wrapper 10 has a permeability of less than 100 Coresta units, or less than 60 Coresta units. For example, low permeability wrappers having a permeability of less than 100 Coresta units, or less than 60 Coresta units, have been found to result in improved aerosol formation in the aerosol generating material 3. Without wishing to be bound by theory, it is assumed that this is due to reduced loss of aerosol compounds through the wrapper 10. The permeability of the wrapper 10 can be measured according to ISO 2965:2009 on determination of air permeability for materials used as cigarette papers, filter plug wraps and filter bonding papers.

In this embodiment, the wrapper 10 includes aluminum foil. Aluminum foil has been found to be particularly effective in enhancing the formation of aerosols in the aerosol generating material 3. In this example, the aluminum foil has a metal layer with a thickness of approximately 6 μm. In this example, the aluminum foil has a paper backing. However, in alternative arrangements, the aluminum foil may have other thicknesses, for example between 4 μm and 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 appropriate tensile strength to the foil, or it may have no backing material. Metal layers or foils other than aluminum may also be used. The total thickness of the wrapper is between 20 μm and 60 μm, more preferably between 30 μm and 50 μm, which can provide a wrapper with appropriate structural integrity and heat transfer properties. The tensile force that can be applied to the wrapper before it breaks can 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, such as greater than about 1000 Coresta units, or greater than about 1500 Coresta units, or greater than about 2000 Coresta units. has The permeability of the wrapper 10 can be measured according to ISO 2965:2009 on determination of air permeability for materials used as cigarette papers, filter plug wraps and filter bonding papers.

The wrapper 10 may be formed of a material having a high inherent level of permeability, an inherently porous material, or any inherent level of permeability if the final level of permeability is achieved by providing a permeable zone or region in the wrapper 10. It can be formed from a material having . Providing a permeable wrapper 10 provides a route for air to enter the article. The wrapper 10 may be provided with permeability 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 ventilation holes 12 of the mouthpiece. Articles with this arrangement may produce more flavorful aerosols that may be more pleasing to the user.

In this example, the aerosol former material added to the aerosol-generating substrate 3 comprises 14% by weight of the aerosol-generating substrate 3. In some embodiments, the aerosol former material comprises at least 5% by weight of the aerosol-generating substrate, or at least 10% by weight of the aerosol-generating substrate. In some embodiments, the aerosol former material comprises less than 25%, less than 20%, such as 10% to 20%, 12% to 18%, or 13% to 16%, by weight of the aerosol generating substrate.

In some embodiments, 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 10 mm to 100 mm. In some embodiments, the length of the aerosol-generating material ranges from about 25 mm to 50 mm, ranges from about 30 mm to 45 mm, or ranges from about 30 mm to 40 mm.

In some examples, the article 1 may be configured such that there is a gap (i.e., a minimum distance) between the heater of the non-flammable aerosol presentation device 100 and the tubular body 4a. This prevents the heat from the heater from damaging the material forming the tubular body 4a.

The minimum distance between the heater of the non-flammable aerosol delivery device 100 and the tubular body 4a may be at least 3 mm. In some examples, the minimum distance between the heater of the non-flammable aerosol delivery device 100 and the tubular body 4a ranges from 3 mm to 10 mm, such as 3 mm, 4 mm, 5 mm, 6 mm, 7 mm, 8 mm. mm, 9 mm or 10 mm.

The gap between the heater of the non-flammable aerosol providing device 100 and the tubular body 4a can be achieved, for example, by adjusting the length of the rod of aerosol generating material 3.

The volume of aerosol-generating material 3 provided may vary from about 200 mm3 to about 4300 mm3, from about 500 mm3 to 1500 mm3, and from about 1000 mm3 to about 1300 mm3. The provision of such volumes of aerosol generating material, for example from about 1000 mm3 to about 1300 mm3, has been shown to be advantageous in achieving superior aerosols with greater visibility and sensory performance compared to that achieved with volumes selected at the lower end of the range. .

The mass of provided aerosol-generating material may be greater than 200 mg, such as about 200 mg to 400 mg, about 230 mg to 360 mg, about 250 mg to 360 mg. Advantageously, it has been found that providing a higher mass of aerosol generating material 3 results in improved sensory performance compared to aerosols generated from lower mass tobacco material.

In some embodiments, the aerosol-generating material or substrate is formed from a tobacco material as described herein that includes a tobacco component.

In the tobacco materials described herein, the tobacco component preferably contains paper reconstituted tobacco. The tobacco component may also contain leaf tobacco, extruded tobacco, and/or bandcast tobacco.

Aerosol-generating material 3 may include reconstituted tobacco material having a density of less than about 700 milligrams per cubic centimeter (mg/cc). These tobacco materials have been found to be particularly effective in providing an aerosol-generating material that can be heated quickly to release an aerosol compared to more dense materials. For example, we tested the properties of various aerosol-generating materials such as bandcast reconstituted tobacco material and paper reconstituted tobacco material when heated. For each given aerosol-generating material, it has been found that there is a certain zero heat flow temperature, below which the net heat flow is endothermic, in other words, more heat is leaving the material than leaving it. Entering, and above a certain zero heat flow temperature, the net heat flow is exothermic; in other words, while heat is applied to the material, more heat leaves the material than enters it. Materials with densities less than 700 mg/cc have lower zero heat flow temperatures. Because a significant portion of the heat flow from the material is through the formation of aerosols, having a lower zero heat flow temperature has a beneficial effect on the time it takes to first release an aerosol from an aerosol-generating material. For example, aerosol-generating materials with a density of less than 700 mg/cc have a zero heat flow temperature of less than 164°C compared to materials with a density of more than 700 mg/cc that have a zero heat flow temperature of less than 164°C. It was found to have a temperature.

The density of the aerosol-generating material also affects the rate at which heat is conducted through the material, with lower densities, for example those below 700 mg/cc, conducting heat through the material more slowly and therefore more sustainably. This allows the release of aerosols.

Aerosol-generating material 3 may include reconstituted tobacco material, such as paper reconstituted tobacco material, having a density of less than about 700 mg/cc. In some embodiments, aerosol generating material 3 includes reconstituted tobacco material having a density of less than about 600 mg/cc. Alternatively or additionally, the aerosol-generating material 3 may comprise reconstituted tobacco material having a density of at least 350 mg/cc, which is considered to allow for a sufficient amount of heat conduction through the material.

Tobacco material may be provided in the form of cut rag tobacco. Cut lag tobacco can have a cut width of at least 15 cuts per inch (about 5.9 cuts per cm, corresponding to a cut width of about 1.7 mm). In some embodiments, the cut lag tobacco has a cut width of at least 18 cuts per inch (about 7.1 cuts per cm, corresponding to a cut width of about 1.4 mm), or a cut width of at least 20 cuts per inch (about 7.9 cuts per cm, corresponding to a cut width of about 1.4 mm). corresponds to a cut width of 1.27 mm). In one example, cut lag tobacco has a cut width of 22 cuts per inch (about 8.7 cuts per cm, corresponding to a cut width of about 1.15 mm). Cut lag tobacco has a cut width of 40 cuts per inch or less (about 15.7 cuts per cm, corresponding to a cut width of about 0.64 mm). Cut widths of 0.5 mm to 2.0 mm, such as 0.6 mm to 1.5 mm, or 0.6 mm to 1.7 mm, provide suitable tobacco material in terms of surface area to volume ratio and overall density and pressure drop of the substrate 3, especially when heated. It has been found to produce Cut lag tobacco may be formed from a mixture of forms of tobacco material, such as one or more of paper reconstituted tobacco, leaf tobacco, extruded tobacco, and bandcast tobacco. In some embodiments, the tobacco material includes paper reconstituted tobacco or a mixture of paper reconstituted tobacco and leaf tobacco.

In the tobacco materials described herein, the tobacco materials may contain filler components. Filler components are generally non-tobacco components, i.e. components that do not contain ingredients derived from tobacco. The filler component may be wood fibers or non-tobacco fibers such as pulp or wheat fibers. The filler component may also be an inorganic material such as chalk, perlite, vermiculite, diatomaceous earth, colloidal silica, magnesium oxide, magnesium sulfate, magnesium carbonate. The filler component may also be a 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, no filler component is present.

In the tobacco materials described herein, the tobacco material contains an aerosol former material. In this context, an “aerosol former material” is an agent that promotes the creation of an aerosol. Aerosol former materials can facilitate the creation of aerosols by promoting initial vaporization and/or condensation of gases into inhalable solid and/or liquid aerosols. In some embodiments, an aerosol former material can improve the delivery of flavor from the aerosol generating material. In general, any suitable aerosol former material or agent, including those described herein, may be included in the aerosol generating material of the present invention. Other suitable aerosol former materials include, but are not limited to: polyols such as sorbitol, glycerol, and glycols such as propylene glycol or triethylene glycol; Non-polyols such as monohydric alcohols, high boiling hydrocarbons, acids such as lactic acid, glycerol derivatives, esters such as diacetin, triacetin, triethylene glycol diacetate ( Myristates and aliphatic carboxylic acid esters, including triethylene glycol diacetate, triethyl citrate or ethyl myristate and isopropyl myristate, for example For example, methyl stearate, dimethyl dodecanedioate and dimethyl tetradecanedioate. In some embodiments, the aerosol former material can be glycerol, propylene glycol, or a mixture of glycerol and propylene glycol. Glycerol may be present in an amount of 10% to 20% by weight of the tobacco material, for example 13% to 16% by weight of the composition, or about 14% or 15% by weight of the composition. Propylene glycol, if present, may be present in an amount of 0.1% to 0.3% by weight of the composition.

The aerosol former material may be included in any component of the tobacco material, such as any tobacco component and/or filler component, if present. Alternatively or additionally, the aerosol former material may be added separately to the tobacco material. In either case, the total amount of aerosol former material in the tobacco material may be as defined herein.

The tobacco material may comprise from 10% to 90% tobacco leaves by weight, wherein the aerosol former material is provided in an amount of up to about 10% by weight of the leaf tobacco. It has advantageously been found that in order to achieve an overall level of aerosol former material of 10 to 20% by weight of the tobacco material, it can be added in higher weight percentages to other components of the tobacco material, such as reconstituted tobacco material. .

The tobacco materials described herein contain nicotine. The nicotine content may be between 0.5% and 1.75% by weight of the tobacco material, for example between 0.8% and 1.5% by weight of the tobacco material. Additionally or alternatively, the tobacco material has from 10% to 90% by weight of tobacco leaves with a nicotine content of greater than 1.5% by weight of the tobacco leaves. Advantageously, using tobacco leaves with a nicotine content greater than 1.5% in combination with a base material with a lower nicotine content, such as paper reconstituted cigarettes, provides an appropriate nicotine level in the tobacco material, but at a lower level than using paper reconstituted cigarettes alone. It has been found that it provides better sensory performance. For example, tobacco leaves such as cut rag tobacco may have a nicotine content of, for example, 1.5% to 5% by weight of the tobacco leaves.

The tobacco materials described herein may have an aerosol modifier such as any of the flavors described herein. In one embodiment, the tobacco material retains menthol, forming a menthol-containing article. The tobacco material may include 3 mg to 20 mg menthol, 5 mg to 18 mg, or 8 mg to 16 mg menthol. In this example, the tobacco material contains 16 mg of menthol. The tobacco material may have 2% to 8% menthol, 3% to 7% menthol, or 4% to 5.5% menthol by weight. In one embodiment, the tobacco material includes 4.7% menthol by weight. These high levels of menthol loading can 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, for example, when greater than about 500 mm3 or suitably greater than about 1000 mm3 of aerosol-generating material, such as tobacco material, is used. , may increase the level of menthol loading that can be achieved.

In compositions described herein where amounts are given in percent by weight, for the avoidance of doubt, unless specifically indicated otherwise, this is meant on a dry weight basis. Accordingly, any moisture that may be present in the tobacco material or any component thereof is completely ignored for purposes of determining weight percent. The moisture content of the tobacco materials described herein may vary, for example, from 5 to 15% by weight. The moisture content of the tobacco materials described herein may vary depending, for example, on the temperature, pressure and humidity conditions in which the compositions are maintained. Moisture content can be determined by Karl-Fisher analysis as known to those skilled in the art. Meanwhile, for the avoidance of doubt, any component other than water is included in the weight of the tobacco material, even if the aerosol former material is a liquid component such as glycerol or propylene glycol. However, if the aerosol former material is provided to the tobacco component of the tobacco material or to the filler component of the tobacco material (if present) instead of or in addition to being added separately to the tobacco material, then the aerosol former material is a component of the tobacco material. It is not included in the weight of the elements or filler components, but is included in the weight of the “aerosol former material” in weight percent as defined herein. All other ingredients present in the tobacco component are included in the weight of the tobacco component, even if they are of non-tobacco origin (e.g. non-tobacco fibers in the case of paper reconstituted tobacco).

In one embodiment, the tobacco material comprises a tobacco component as defined herein and an aerosol former material as defined herein. In one embodiment, the tobacco material consists essentially of a tobacco component as defined herein and an aerosol former material as defined herein. In one embodiment, the tobacco material consists of a tobacco component as defined herein and an aerosol former material as defined herein.

Paper reconstituted tobacco is present in the tobacco component of the tobacco material 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%, or 20% to 70%, by weight of the tobacco components. In a further embodiment, the tobacco component consists essentially of or consists of paper reconstituted tobacco. In some embodiments, leaf tobacco 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, leaf tobacco may be present in an amount of at least 10 wt% of the tobacco component, while the remainder of the tobacco component is in other forms such as paper reconstituted tobacco, bandcast reconstituted tobacco, or bandcast reconstituted tobacco and tobacco granules. Contains a combination of tobacco.

Paper reconstituted tobacco refers to tobacco material formed by a process that extracts tobacco feedstock with a solvent to provide a residue containing extracts of solubles and fibrous material, which is then subjected to extract (usually after concentration and, optionally, further processing). After), the extract is deposited on the fibrous material (usually after purification of the fibrous material, and optionally with the addition of a portion of non-tobacco fibers) and recombined with the fibrous material from the residue. The recombination process is similar to the papermaking process.

Paper reconstituted cigarettes can be any type of paper reconstituted cigarette known in the art. In certain embodiments, paper reconstituted tobacco is manufactured from a feedstock comprising one or more of tobacco strips, tobacco stems, and whole leaf tobacco. In a further embodiment, paper reconstituted tobacco is manufactured from a feedstock consisting of tobacco strips and/or whole leaf tobacco, and tobacco stems. However, in other embodiments, scraps, fines and winnowings may alternatively or additionally be used in the feedstock.

Paper reconstituted tobacco for use in the tobacco materials described herein can be made by methods known to those skilled in the art for making paper reconstituted tobacco.

In some embodiments, it may be particularly advantageous to use a hollow tubular element 8 having a length greater than about 10 mm, for example from about 10 mm to about 30 mm, or from about 12 mm to about 25 mm. The consumer's lips are likely to extend in some cases up to about 12 mm from the mouth end of the article 1 when drawing an aerosol through the article 1, so that the hollow tubular element 8 is at least 10 mm or at least It turns out that having a length of 12 mm means that most of the consumer's lips surround this element (8).

Figure 3 is a side cross-sectional view of a further article 1', comprising a mouthpiece 2' comprising a hollow tubular element 8. The mouthpiece 2' is similar to the mouthpiece 2 described above in relation to FIG. 1 except that at its downstream end 2b the mouthpiece 2' comprises a hollow tubular element 8 formed from a filament tow. ) is substantially the same as In this example, the tubular portion 4a, the material body 6 and the hollow tubular element 8 are combined using a second plug wrap 9 wrapped around all three sections.

The material body 6 of the article 1 ′ in FIG. 3 is similar to the material body 6 described above in connection with FIGS. 1 and 2 . As before, the material body 6 is made of a sheet material comprising cellulose, for example the sheet material can be paper. The sheet materials are gathered together to form a body of material (6).

In this example, the axial length L1 of the material body 6 is approximately 10 mm. However, those skilled in the art will recognize that the material body 6 may have different axial lengths L1. In some embodiments, the length L1 of the material body 6 is less than about 20 mm, or less than 15 mm. In some embodiments, the length L1 of the material body 6 is less than about 10 mm. Additionally, or alternatively, the length L1 of the material body 6 is at least about 5 mm. In some embodiments, the length L1 of the material body 6 is at least about 6 mm. In some embodiments, the length L1 of the material body 6 is about 5 mm to about 15 mm, about 6 mm to about 12 mm. In some embodiments, the length L1 of the material body 6 is 6 mm, 7 mm, 8 mm, 9 mm or 10 mm.

The portion of the mouthpiece that came into contact with the consumer's lips was typically hollow or a paper tube surrounding a cylindrical body of filter material. Providing a hollow tubular element (8) advantageously significantly reduces the temperature of the outer surface of the mouthpiece (2) at the downstream end (2b) of the mouthpiece, which comes into contact with the consumer's mouth when the article (1) is in use. has been found to decrease. Moreover, it has also been found that the use of the tubular portion 4a significantly reduces the temperature of the outer surface of the mouthpiece 2' even upstream of the tubular portion 4a. Without wishing to be bound by theory, this means that the tubular portion 4a channels the aerosol closer to the center of the mouthpiece 2', thus reducing the transfer of heat from the aerosol to the outer surface of the mouthpiece 2'. It is assumed that this is because it reduces. Furthermore, it has been found that the material body 6 removes moisture from the aerosol generated by the aerosol-generating material 3 as the aerosol passes through the material body 6A of the mouthpiece 2, which allows the aerosol to be absorbed by the user. Makes you feel cooler in your mouth.

In this example, the hollow tubular element 8 is formed from a filament tow. In alternative embodiments, the hollow tubular element may be formed using any configuration as described herein for tubular portion 4a.

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 part. The wall thickness is advantageously greater than 0.9 mm, more preferably greater than or equal to 1.0 mm. In some embodiments, the wall thickness is substantially constant around the entire wall of the hollow tubular element 8. However, if the wall thickness is not substantially constant, the wall thickness may be greater than 0.9 mm at any point around the hollow tubular element 8, for example greater than 1.0 mm.

The length of the hollow tubular element 8 is less than about 20 mm. In some embodiments, the length of hollow tubular element 8 is less than about 15 mm. In some embodiments, the length of hollow tubular element 8 is less than about 10 mm. Additionally, or alternatively, the length of the hollow tubular element 8 is at least about 5 mm. In some embodiments, the length of hollow tubular element 8 is at least about 6 mm. In some embodiments, the length of hollow tubular element 8 is about 5 mm to about 20 mm, about 6 mm to about 10 mm, or about 6 mm to about 8 mm. In some embodiments, the length of the hollow tubular element 8 is 6 mm, 7 mm or 8 mm. In this example, the length of the hollow tubular element 8 is 6 mm.

The density of the hollow tubular element 8 is at least about 0.25 grams per cubic centimeter (g/cc), such as at least about 0.3 g/cc. In some embodiments, the density of hollow tubular element 8 is less than about 0.75 grams per cubic centimeter (g/cc), such as less than 0.6 g/cc. In some embodiments, the density of hollow tubular element 8 is between 0.25 g/cc and 0.75 g/cc, between 0.3 g/cc and 0.6 g/cc, or between 0.4 g/cc and about 0.6 g/cc. In some embodiments, the density of hollow tubular element 8 is about 0.5 g/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, “density” of the hollow tubular element 8 refers to the density of the filament tows forming the element into which any plasticizer is incorporated. The density can be determined by dividing the total weight of the hollow tubular element 8 by the total volume of the hollow tubular element 8, where the total volume is determined using suitable measurements of the hollow tubular element 8, for example taken using a caliper. It can be calculated as: If necessary, appropriate dimensions can be measured using a microscope.

The filament tow forming the hollow tubular element 8 may have a total denier of less than 45,000, such as less than 42,000. It has been found that this total denier allows the formation of hollow tubular elements (8) that are not too dense. In some embodiments, the total denier is at least 20,000, such as at least 25,000. In some embodiments, the filament tow forming the hollow tubular element 8 has a total denier of 25,000 to 45,000, such as 35,000 to 45,000. In some embodiments, the cross-sectional shapes of the filaments of the tow are 'Y' shaped, although other cross-sectional shapes such as 'X' shaped filaments may be used in other embodiments.

The filament tow forming the hollow tubular element 8 may have a denier per filament greater than 3. It has been found that this denier per filament allows the formation of hollow tubular elements (8) that are not too dense. In some embodiments, the denier per filament is at least 4, such as at least 5. In some embodiments, the filament tow forming the hollow tubular element 8 has a denier per filament of 4 to 10, such as 4 to 9. In one example, the filament tow forming the hollow tubular element 8 has an 8Y40,000 tow formed of cellulose acetate and containing 18% plasticizer, such as triacetin.

The hollow tubular element 8 may have an inner diameter greater than 3.0 mm. Smaller diameters may increase the velocity of the aerosol passing through the mouthpiece 2' and into the consumer's mouth more than desired, so that the aerosol becomes too warm, for example at temperatures above 40°C or above 45°C. reach In some embodiments, the hollow tubular element 8 has an inner diameter greater than 3.1 mm, such as greater than 3.5 mm or 3.6 mm. In one embodiment, the internal diameter of the hollow tubular element 8 is about 3.9 mm.

In some embodiments, hollow tubular element 8 includes 15% to 22% by weight plasticizer. For cellulose acetate tow, the plasticizer is triacetin, but other plasticizers such as polyethylene glycol (PEG) may be used. In some embodiments, hollow tubular element 8 includes 16% to 20% by weight plasticizer, such as about 17%, about 18%, or about 19% by weight.

In this example, the tubular portion 4a is the first hollow tubular element and the hollow tubular element 8 is the second hollow tubular element.

In the present example, ventilation is provided in the tubular portion 4a as explained in relation to FIG. 1 . In alternative embodiments, ventilation may be provided into the mouthpiece at other locations, for example into the material body 6 or the hollow tubular element 8.

In the examples described above, the mouthpieces 2, 2' each comprise a single body of material 6. In other examples, mouthpiece 2, 2' may include multiple bodies of material. The mouthpieces 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 is a wrapper, such as first or second plug wraps 7, 9, or an aerosol modifier as described herein, or It may include a tipping paper 5 containing other sensory materials. The aerosol modifier may be disposed on the inward-facing or outward-facing surface of the mouthpiece wrapper. For example, an aerosol modifier or other sensory material may be provided on an area of the wrapper, such as the outward surface of the tipping paper 5 that comes into contact with the consumer's lips during use. By disposing the aerosol modifier or other sensory material on the outward-facing surface of the mouthpiece wrapper, the aerosol modifier or other sensory material may be delivered to the consumer's lips during use. Delivering an aerosol modifier or other sensory material to the consumer's lips during use of the article modifies the organoleptic properties (e.g., taste) of the aerosol produced by the aerosol-generating substrate 3 or otherwise provides the consumer with an alternative. It can provide a tangible sensory experience. For example, an aerosol modifier or other sensory material may impart flavor to the aerosol generated by the aerosol generating substrate 3. The aerosol modifier or other sensory material can be at least partially dissolved in water and delivered to the user through the consumer's saliva. The aerosol modifier or other sensory material may be volatilized by the heat generated by the aerosol delivery system. This can facilitate delivery of the aerosol modifier to the aerosol generated by the aerosol generating substrate 3. Suitable sensory materials may be flavors as described herein, cooling agents such as sucralose or menthol or the like.

In some embodiments (not shown), the mouthpiece 2, 2' may include an aerosol modifier releasing component operable to release the aerosol modifier. In some embodiments, the aerosol modifier release component may be operable to selectively release the aerosol modifier. As discussed above, the body of material 6 may include fibers having a length ranging from 2 mm to 6 mm, which allows the body of material 6 to produce a specific aerosol when the aerosol modifier is released from the aerosol modifier-releasing component. It leads to less absorption of the modifier.

Aerosol modifiers may be, for example, additives or adsorbents. Aerosol modifiers may include, for example, one or more of flavorants, colorants, water, and carbon adsorbents. Aerosol modifiers may be solid, liquid or gel, for example. Aerosol modifiers may be in powder, thread or granular form. The aerosol modifier may be free of filtration material.

The aerosol modifier release component may be, for example, a capsule, thread or bead. In some embodiments, a plurality of aerosol modifier releasing components are provided and may include a plurality of charcoal particles loaded with the aerosol modifier.

In some embodiments, the aerosol modifier releasing component includes a thread loaded with an additive. The yarn may be made from fibers of cellulose acetate or cotton, for example.

In some embodiments, the aerosol modified release component has in the range of 1 mg to 20 mg of aerosol modifier, such as in the range of 2 mg to 15 mg of aerosol modifier.

An aerosol modifier releasing component, such as a capsule, may be positioned in the body 6. The (or each) aerosol modifier releasing component may be combined with, for example glued to, the sheet material 6A before the sheet material 6A is formed into the body 6.

In some embodiments, a non-flammable aerosol presentation system is provided that includes an aerosol modifier releasing component and a heater operable to heat the aerosol-generating material (3) such that in use the aerosol-generating material (3) provides an aerosol.

The aerosol modifier release component may include a capsule. In some embodiments, the aerosol modifier release component includes a first capsule and a second capsule. The first capsule is disposed in the first portion of the aerosol modifier-releasing component and the second capsule is disposed in the second portion of the aerosol modifier-releasing component downstream of the first portion.

A first portion of the aerosol modifier releasing component is heated to a first temperature during operation of the heater to generate the aerosol, and the second portion is heated to a second temperature during operation of the heater to generate the aerosol, wherein the second temperature is At least 4 degrees Celsius below the first temperature. In some embodiments, the second temperature is at least 5, 6, 7, 8, 9, or 10 degrees Celsius lower than the first temperature.

The aerosol modifier releasing component may comprise one or more components of article 1. In some embodiments, the first capsule and the second capsule are disposed in the material body 6. In one embodiment, the aerosol modifier release component includes two bodies of material (not shown), with a first capsule and a second capsule disposed in the first body and the second body, respectively. In some embodiments, the aerosol modifier releasing component alternatively or additionally includes one or more tubular elements upstream and/or downstream of the material body or bodies. The aerosol generating component may include a mouthpiece 2, 2'.

In some embodiments, the second capsule is spaced apart from the first capsule by a distance of at least 7 mm, measured as the distance between the first capsule and the center of the second capsule. In some embodiments, the second capsule is spaced apart from the first capsule by a distance of at least 8 mm, 9 mm, 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 contains an aerosol modifier. The second capsule contains an aerosol modifier that may be the same or different from the aerosol modifier in the first capsule. In some embodiments, a user can selectively rupture the first and second capsules by applying an external force to the aerosol modifier release component to release the aerosol modifier from each capsule.

The aerosol modifier in the second capsule is heated to a lower temperature than the aerosol modifier in the first capsule due to the difference between the first and second temperatures.

The aerosol modifiers of the first and second capsules may be selected based on this temperature difference. For example, the first capsule can include a first aerosol modifier that has a lower vapor pressure than the second aerosol modifier in the second capsule. If the capsules were both heated to the same temperature, the higher vapor pressure of the aerosol modifier in the second capsule would mean that a greater amount of the second aerosol modifier would volatilize compared to the aerosol modifier in the first capsule. However, because the second capsule is heated to a lower temperature, this effect is less pronounced such that a more uniform amount of aerosol modifier from the first and second capsules is volatilized when they are respectively broken.

In some embodiments, the first and second capsules have identical aerosol modification profiles, meaning that both capsules have the same type of aerosol modifier and the same amount, so that both capsules are heated to the same temperature and break. This means that both capsules will cause the same modification of the aerosol. However, because the first capsule is heated to a higher temperature than the second capsule, a greater proportion of the aerosol modifier in the first capsule will volatilize, for example, compared to the modifier in the second capsule, and thus than in the second capsule. It will cause more noticeable modification of the aerosol. Thus, even though both capsules are identical, making the aerosol modification component easier and/or less expensive to manufacture, the user has to decide whether to destroy the first capsule to cause a more pronounced modification of the aerosol or the second capsule to cause a more pronounced modification of the aerosol. It can be determined whether breaking a capsule will cause a less significant modification of the aerosol, or breaking both capsules will cause the most significant modification of the aerosol.

In some embodiments, both the first and second capsules include first and second aerosol modifiers. The first aerosol modifier has a lower vapor pressure than the second aerosol modifier. Therefore, when the second capsule is broken, a greater proportion of the second aerosol modifier will vaporize compared to the first aerosol modifier compared to when the hotter first capsule is broken during aerosol generation using the system. . Accordingly, the same capsule can be used to create different modifications of the aerosol based on the position of the capsule in the first or second portion of the aerosol modifier releasing component.

In some embodiments, the (or each) capsule includes an outer shell and an inner core.

The shell of each capsule can be solid at room temperature. The shell may include, consist of, or consist essentially of alginate. However, it should be recognized that in alternative embodiments the shell is formed of a different material. For example, the shell may alternatively comprise, consist of, or consist essentially of gelatin, carrageenans or pectins. The shell may contain, consist of, or consist essentially of one or more of alginates, gelatin, carrageenans, or pectins.

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 agent in the core from being released from the capsule. When the user wishes to modify the aerosol, the shells of the capsules rupture and release the agent.

In some embodiments (not shown), the (or each) capsule further includes a carrier material. The carrier material may include, for example, gelatin.

In some embodiments, the (or each) capsule has a diameter ranging from 1 mm to 5 mm, or from 2 mm to 4 mm. In some embodiments, the (or each) capsule has a diameter of about 3 mm. The (or each) capsule may be generally spherical. In other examples, other shapes and sizes of capsules may be used.

The total weight of each capsule may range from about 5 mg to about 50 mg, or from about 10 mg to 30 mg. In some embodiments, each capsule weighs about 14 mg.

In some embodiments, one or more aerosol modifier releasing components are included in a body of material 6, which is formed of a sheet material having a basis weight of less than 40 gsm, such as less than 35 gsm or less than 30 gsm. This helps to reduce the density of the material body 6 to compensate for the presence of aerosol modifier emitting components within the body 6, which may otherwise increase the rigidity of the body 6.

In some embodiments, one or more aerosol modifier releasing components are included in a body of material 6, which is formed of a sheet material having a width of less than 100 mm, such as less than 90 mm or 80 mm. This helps to reduce the density of the material body 6 to compensate for the presence of aerosol modifier emitting components within the material body 6, which may otherwise increase the rigidity of the material body 6.

In some embodiments, the (or each) capsule is centered about the longitudinal axis of the mouthpiece 2.

As discussed above, the (or each) capsule may have a core-shell structure. That is, the encapsulation material or barrier material creates a shell around the core containing the aerosol modifier. The shell structure impedes migration of the aerosol modifier during storage of the article, but allows 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 brittle. The (or each) capsule is crushed or otherwise ruptured or destroyed by the user to release the encapsulated aerosol modifier. Typically, one or more of the capsules are destroyed just before heating begins, but the user can choose when to release the capsule's aerosol modifier. The user can then choose to destroy the other capsules at a later time, for example after heating has started. The user may choose to destroy another one of the capsules once a portion of the aerosol is released from the aerosol-generating material, such that the remaining aerosol-generating material is modified by the aerosol modifier of the other one of the capsules. Alternatively, the user may choose to destroy multiple capsules simultaneously.

The term "breakable capsule" refers to a capsule whose shell can be broken by pressure to release the core; More specifically, the shell may burst under the pressure exerted by the user's fingers when the user wishes to release the core of the capsule.

In some cases, the barrier material is heat resistant. That is, in some cases, the barrier will not rupture, melt, or otherwise fail at the temperatures reached at the capsule point during operation of the aerosol presentation device. Illustratively, the capsule positioned in the mouthpiece may be exposed to temperatures ranging, for example, from 30° C. to 100° C., and the barrier material may continue to maintain the liquid core until at least about 50° C. to 120° C.

In other cases, the or each capsule releases the core composition upon heating, for example by melting the barrier material or by expansion of the capsule causing rupture of the barrier material.

The total weight of each capsule is suitably about 1 mg to about 100 mg, suitably about 5 mg to about 60 mg, about 8 mg to about 50 mg, about 10 mg to about 20 mg, or about 12 mg to about 18 mg. It may be in the range of mg.

The total weight of the core formulation may be from about 2 mg to about 90 mg, suitably from about 3 mg to about 70 mg, from about 5 mg to about 25 mg, from about 8 mg to about 20 mg, or from about 10 mg to about 15 mg. It may be a range.

In some embodiments, the or each capsule includes a core and shell as described above. Each of the capsules may exhibit a crush strength of about 4.5 N to about 40 N, about 5 N to about 30 N, or about 5 N to about 28 N (e.g., about 9.8 N to about 24.5 N). . The capsule bursting strength of each capsule can be measured when the capsule is removed from the material body 6, using a force gauge to measure the force at which the capsule bursts when pressed between two flat metal plates. It can be measured. A suitable measuring device is a Sauter FK 50 force gauge with a flat head attachment, which can be used to crush the capsule against a flat, hard surface with a surface similar to the attachment.

The (or each) capsule may be substantially spherical and may have a diameter of at least about 0.4 mm, 0.6 mm, 0.8 mm, 1.0 mm, 2.0 mm, 2.5 mm, 2.8 mm, or 3.0 mm. The diameter of the (or each) capsule may be less than about 10.0 mm, 8.0 mm, 7.0 mm, 6.0 mm, 5.5 mm, 5.0 mm, 4.5 mm, 4.0 mm, 3.5 mm or 3.2 mm. By way of example, the capsule diameter may range from about 0.4 mm to about 10.0 mm, from about 0.8 mm to about 6.0 mm, from about 2.5 mm to about 5.5 mm, or from about 2.8 mm to about 3.2 mm. In some cases, the (or each) capsule may have a diameter of about 3.0 mm. These sizes are particularly suitable for incorporating capsules into articles as described herein.

The cross-sectional area of each capsule at its maximum cross-sectional area is, in some embodiments, less than 28%, such as less than 27%, or less than 25%, of the cross-sectional area of the portion of mouthpiece 2 on which the capsule is provided. For example, for a spherical capsule with a diameter of 3.0 mm, the maximum cross-sectional area of the capsule is 7.07 mm2. For a mouthpiece with a perimeter of approximately 21 mm as described herein, the material body 6 would have a circumference of 20.8 mm and the radius of this component would be 3.31 mm, corresponding to a cross-sectional area of 34.43 mm2. The capsule cross-sectional area is, in this example, 20.5% of the cross-sectional area of the mouthpiece 2. As another example, if the capsule has a diameter of 3.2 mm, its maximum cross-sectional area would be 8.04 mm2. In this case, the cross-sectional area of the capsule will be 23.4% of the cross-sectional area of the material body 6. Capsules with the largest cross-sectional area of less than 28% of the cross-sectional area of the portion of the mouthpiece 2 on which they are provided have a reduced pressure drop across the mouthpiece 2 compared to capsules with larger cross-sectional areas, and the aerosol This has the advantage that when passing through the mouthpiece 2 , adequate space is left around the capsule to allow the aerosol to pass without the material body 6 removing significant amounts of the aerosol mass. In some embodiments, first and second capsules are provided, which may be the same size or different sizes.

Figure 4 is a side cross-sectional view of an additional article 1" including a mouthpiece 2". The mouthpiece 2" is substantially the same as the mouthpiece 2 described above in connection with FIGS. 1 and 2. The difference is that the material body 6 of the article 1" is located at the center of the tubular portion 4a. The point is that it is located upstream.

In this example the tubular part 4a and the material body 6 are joined using a second plug wrap 9 wrapped around both sections.

The material body 6 of the article 1 "in Figure 4 is similar to the material body 6 described above in connection with Figures 1 to 3. As before, the material body 6 is a sheet comprising cellulose. It is manufactured from a material, for example the sheet material may be paper.The sheet material is gathered together to form the material body 6.

The material body 6 is disposed at the upstream end 2a of the mouthpiece 2'. The material body (6) is adjacent to the aerosol-generating material (3).

The tubular portion 4a is disposed at the downstream end 2b of the mouthpiece 2″ and thus forms a cavity at the downstream end 2b. The tubular portion 4a is located downstream of the material body 6. In this example, the tubular portion 4a is immediately adjacent to the material body 6.

The tubular portion 4a has an axial length L2 of at least 20 mm, such as at least 22 mm. In this example, the axial length L2 of the tubular portion 4a is approximately 25 mm.

It has been found that a tube with an axial length (L2) of at least 20 mm results in significant cooling of the aerosol when passing through the tubular portion (4a). Additionally, as previously explained, the cellulose-retaining sheet material of the material body 6 absorbs water from aerosols. Removing moisture from the aerosol makes the aerosol feel cooler in the user's mouth.

In some embodiments, the tubular portion 4a includes one or more ventilation holes that also contribute to the cooling of the aerosol.

In some embodiments, tubular portion 4a is made of paper.

Figure 5 is a side cross-sectional view of a further article 1''' comprising a mouthpiece 2'''. The mouthpiece 2''' is substantially identical to the mouthpiece 2 described above in relation to FIGS. 1 and 2 . The difference is that the mouthpiece 2''' additionally comprises a tubular element 20 positioned within the material body 6.

In this example, the tubular portion 4a and the material body 6 are joined using a second plug wrap 9 wrapped around both sections.

The material body 6 of the article 1''' in Figure 5 is similar to the material body 6 described above in connection with Figures 1 to 3. As before, the material body 6 is made of a sheet material comprising cellulose, for example the sheet material can be paper. The sheet materials are gathered together to form a body of material (6).

The tubular element 20 can be, for example, a plastic tube or paper disposed within the material body 6 . The tubular element 20 forms a cavity 21 within the material body 6 . Optionally, the tubular element 20 is positioned substantially radially centrally within the material body 6.

In this example, cavity 21 extends to the downstream end 2b of mouthpiece 2'''.

In this example, the axial length L1 of the material body 6 is approximately 10 mm. However, those skilled in the art will recognize that the material body 6 may have different axial lengths L1. In some embodiments, the length L1 of the material body 6 is less than about 15 mm. In some embodiments, the length L1 of the material body 6 is less than about 10 mm. Additionally, or alternatively, the length L1 of the material body 6 is at least about 5 mm. In some embodiments, the length L1 of the material body 6 is at least about 6 mm. In some embodiments, the length L1 of the material body 6 is between about 5 mm and about 15 mm, between about 6 mm and about 12 mm, or between about 6 mm and about 12 mm. In some embodiments, the length L1 of the material body 6 is 6 mm, 7 mm, 8 mm, 9 mm or 10 mm.

In some embodiments, tubular element 20 has an axial length L3 of at least 4 mm, such as about 5 mm.

Cavity 21 has been found to promote cooling of the aerosol. It has been found that the portion 6b of the material body 6 surrounding the tubular element 21 effectively thermally insulates the user's lips from the heat of the aerosol. For example, in embodiments where the material body 6 is made of sheet material arranged on the material body, it is believed that the multiple layers of sheet material in the material body 6 help insulate the user's lips from the heat of the aerosol. . In some embodiments, there may optionally be gaps, for example air gaps, between the layers of sheet material contributing to the insulating effect.

Additionally, the material body 6 may be more readily biodegradable than configurations in which a cellulose acetate tubular portion is instead provided at the downstream end 2b of the mouthpiece.

The material body 6 may be manufactured from a multi-length rod 22 as shown in Figure 6, which in this example is a 4-length rod. The rod is cut at lines C-C to form individual bodies of material 6 each comprising a tubular element 20 with a corresponding cavity 21.

The non-flammable aerosol-providing device is used to heat the aerosol-generating material 3 of any of the articles 1, 1', 1", 1''' described herein. Non-flammable aerosol-providing device may comprise a coil, which has been found to enable improved heat transfer to the article 1, 1', 1", 1''' compared to other arrangements.

In some examples, the coil is configured to heat the at least one electrically conductive heating element when in use, such that thermal energy can be conducted from the at least one electrically conductive heating element to the aerosol-generating material, thereby causing heating of the aerosol-generating material. .

In some examples, the coil is configured to generate a varying magnetic field for penetrating the at least one heating element when in use, thereby producing inductive heating and/or magnetic hysteresis heating of the at least one heating element. In this arrangement, the heating element or each heating element may be referred to as a “susceptor” as defined herein. A coil configured to generate a varying magnetic field for penetrating the at least one electrically conductive heating element during use, thereby producing inductive heating of the at least one electrically conductive heating element, is referred to as an “induction coil” or “inductor coil”. "You can call it

The device may comprise heating element(s), for example electrically conductive heating element(s), and the heating element(s) may be suitably positioned relative to the coil to enable such heating of the heating element(s). It may be present or locationable. The heating element(s) may be in a fixed position relative to the coil. Alternatively, at least one heating element, for example at least one electrically conductive heating element, may be included in the article (1, 1', 1", 1''') for insertion into the heating zone of the device, 1, 1', 1", 1''') also includes aerosol-generating material 3, which can be removed from the heating zone after use. Alternatively, both the device and such article (1, 1', 1", 1''') may comprise at least one individual heating element, for example at least one electrically conductive heating element, wherein the coil This may cause heating of the respective heating element(s) of the device and article when in the heating zone.

In some examples, the coil is helical. In some examples, the coil surrounds at least a portion of a heating zone of a device configured to receive an aerosol-generating material. In some examples, the coil is a helical coil surrounding at least a portion of the heating zone.

In some examples, the device includes an electrically conductive heating element at least partially surrounding a heating zone, and the coil is a helical coil surrounding at least a portion of the electrically conductive heating element. In some examples, the electrically conductive heating element is tubular. In some examples, the coil is an inductor coil.

In some examples, the use of a coil allows a non-flammable aerosol delivery device to reach operating temperature more quickly than a non-coiled aerosol delivery device. For example, a non-flammable aerosol delivery device comprising a coil as described above can reach an operating temperature such that the first puff can be delivered in less than 30 seconds, more preferably less than 25 seconds, from initiation of the device heating program. there is. In some examples, the device can reach operating temperature within about 20 seconds from initiation of the device heating program.

It has been found that using a coil as described herein in a device to generate heating of an aerosol generating material enhances the aerosol generated. For example, consumers may report that aerosols generated by devices containing coils such as those described herein are less effective in factory made cigarette (FMC) products than aerosols generated by other non-flammable aerosol delivery systems. reported to be sensory closer to that produced in . Without wishing to be bound by theory, this may be due to the reduced time to reach the required heating temperature when a coil is used, the higher heating temperatures that can be achieved when a coil is used, and/or the relatively large volume of these systems due to the coil. It is assumed that this is a result of the fact that the aerosol-generating material can be heated simultaneously, thereby generating aerosol temperatures similar to FMC aerosol temperatures. In FMC products, burning coal generates a hot aerosol that heats the tobacco in the tobacco rod behind the coal as the aerosol is drawn through the rod. It is understood that these hot aerosols release flavor compounds from the tobacco in the rod behind the burning coals. It is believed that devices comprising coils as described herein can also heat aerosol-generating materials, such as the tobacco materials described herein, releasing flavor compounds, generating an aerosol that has been reported to be more similar to FMC aerosols. . Certain improvements in aerosol can be achieved through the use of a device comprising a coil for heating an article comprising a rod of aerosol generating material having a circumference greater than 19 mm, for example between about 19 mm and about 23 mm. You can.

Using an aerosol delivery system comprising a coil as described herein, e.g., an induction coil that heats at least a portion of the aerosol generating material to at least 200° C., more preferably at least 220° C., may provide the characteristics of the FMC product. Aerosols can be generated from aerosol-generating materials with certain properties believed to be more similar to those of For example, when an aerosol-generating material containing nicotine is heated using an induction heater heated to at least 250° C. for a period of 2 seconds with an air flow of at least 1.50 L/m during this period, the following properties are obtained: One or more of the following was observed:

at least 10 μg of nicotine is aerosolized from the aerosol-generating material;

The weight ratio of aerosol former material to nicotine in the resulting aerosol is at least about 2.5:1, suitably at least 8.5:1;

At least 100 μg of aerosol former material can be aerosolized from the aerosol generating material;

The average particle or droplet size of the generated aerosol is less than about 1000 nm; and

Aerosol density is at least 0.1 μg/cc.

In some cases, at least 10 μg of nicotine, suitably at least 30 μg or 40 μg of nicotine, is aerosolized from the aerosol-generating material under an air flow of at least 1.50 L/m during this period. In some cases, less than about 200 μg, suitably less than about 150 μg or less than about 125 μg of nicotine is aerosolized from the aerosol-generating material under an air flow of at least 1.50 L/m during this period.

In some cases, the aerosol contains at least 100 μg of aerosol former material, suitably at least 200 μg, 500 μg or 1 mg of aerosol former material during which time the aerosol is released under an air flow of at least 1.50 L/m. It is aerosolized from the resulting material. Suitably, the aerosol former material may comprise or consist of glycerol.

As defined herein, the term “average particle or droplet size” refers to the average size of the solid or liquid components of an aerosol (i.e., components suspended in a gas). When an aerosol contains suspended liquid droplets and suspended solid particles, this term refers to the average size of all components.

In some cases, the average particle or droplet size within the generated aerosol may be less than about 900 nm, 800 nm, 700 nm, 600 nm, 500 nm, 450 nm, or 400 nm. In some cases, the average particle or droplet size may be greater than about 25 nm, 50 nm, or 100 nm.

In some cases, the aerosol density generated during this period is at least 0.1 μg/cc. In some cases, the aerosol density is at least 0.2 μg/cc, 0.3 μg/cc, or 0.4 μg/cc. In some cases, the aerosol density is less than about 2.5 μg/cc, 2.0 μg/cc, 1.5 μg/cc, or 1.0 μg/cc.

The non-flammable aerosol provision device may be arranged to heat the aerosol generating material 3 of the article 1, 1', 1", 1''' to a maximum temperature of at least 160° C. In some embodiments, The non-flammable aerosol-providing device applies the aerosol former material 3 of the article 1, 1', 1", 1''' at least once during the subsequent heating process by the non-flammable aerosol-providing device to at least about 200 °C, or at least about 220°C, at least about 240°C, or at least about 270°C.

Using an aerosol delivery system comprising a coil as described herein, such as an induction coil that heats at least a portion of the aerosol generating material to at least 200° C., or at least 220° C.

In some embodiments, the temperature of the aerosol leaving the mouth end of the mouthpiece 2, 2', 2'', 2''' is less than 50 degrees Celsius, such as less than 45 degrees Celsius.

7 shows a non-flammable aerosol for generating aerosol from an aerosol generating medium/material such as the aerosol generating material 3 of any of the articles 1, 1', 1", 1''' described herein. Shows an example of a provision device 100. Broadly speaking, device 100 is a replaceable article 110 comprising an aerosol-generating medium, such as articles 1, 1', 1 as described herein. ", 1''') can be used to generate an aerosol or other inhalable medium that is inhaled by a user of device 100. Device 100 and replaceable article 110 together form a system.

Device 100 includes a housing 102 (in the form of an external cover) that surrounds and houses various components of device 100. Device 100 has an opening 104 at one end through which an article 110 may be inserted for heating by the heating assembly. In use, article 110 may be fully or partially inserted into a heating assembly where it may be heated by one or more components of the heating assembly.

When the article 110 is inserted into the device 100, the minimum distance between one or more components of the heater assembly and the tubular body 4a of the article 110 is 3 mm to 10 mm, for example 3 mm, 4 mm, 5 mm, 6 mm, 7 mm, 8 mm, 9 mm or 10 mm.

Device 100 of this example includes a first end member 106 that is attached to the first end member 106 to close the opening 104 when the article 110 is not in place. It includes a cover 108 that can be moved relative to the other side. In Figure 8, lid 108 is shown in an open configuration, however lid 108 may be moved to a closed configuration. For example, the user may cause lid 108 to slide in the direction of arrow “B”.

Device 100 may also include user-operable control elements 112, such as buttons or switches that actuate device 100 when pressed. For example, the user may turn on the device 100 by operating the switch 112.

Additionally, device 100 may include electrical components, such as a socket/port 114, that may receive a cable for charging a battery of device 100. For example, socket 114 may be a charging port, such as a USB charging port.

FIG. 8 depicts the device 100 of FIG. 7 with the outer cover 102 removed and the article 110 not present. Device 100 defines a longitudinal axis 134.

As shown in FIG. 8 , first end member 106 is arranged at one end of device 100 and second end member 116 is arranged at the opposite end of device 100 . First and second end members 106, 116 together at least partially define the end surfaces of device 100. For example, the bottom surface of second end member 116 at least partially defines the bottom surface of device 100. The edges of outer cover 102 may also define some of the end surfaces. In this example, lid 108 also defines a portion of the top surface of device 100.

The end of the device closest to opening 104 may be known as the proximal end (or mouse end) of device 100 because it is closest to the user's mouth during use. In use, a user inserts article 110 into opening 104, operates user controls 112 to initiate heating of the aerosol generating material, and aspirates the aerosol generated by the device. This causes the aerosol to flow through device 100 along the flow path toward the proximal end of device 100.

The other end of the device furthest away from opening 104 may be known as the distal end of device 100 because it is the end furthest away from the user's mouth during use. As the user inhales the aerosol generated by the device, the aerosol flows away from the distal end of device 100.

Device 100 further includes a power source 118. Power source 118 may be, for example, a battery, such as a rechargeable battery or a non-rechargeable battery. Examples of suitable batteries include, for example, lithium batteries (e.g., lithium-ion batteries), nickel batteries (e.g., nickel-cadmium batteries), and alkaline batteries. The battery is electrically coupled to the heating assembly to provide electrical power when needed under the control of a controller (not shown) to heat the aerosol generating material. In this example, the battery is connected to a central support 120 that holds the battery 118 in place.

The device further includes at least one electronics module 122. The electronic module 122 may include, for example, a printed circuit board (PCB). PCB 122 may support at least one controller, such as a processor, and memory. PCB 122 may also include one or more electrical tracks to electrically connect the various electronic components of device 100 to each other. For example, battery terminals may be electrically connected to PCB 122 so that power may be distributed throughout device 100. Socket 114 may also be electrically coupled to the battery via electrical tracks.

In the example device 100, the heating assembly is an induction heating assembly and includes various components for heating the aerosol-generating material of the article 110 through an induction heating process. Induction heating is the process of heating an electrically conductive object (such as a susceptor) by electromagnetic induction. The induction heating assembly may include an inductive element, such as one or more inductor coils, and a device for delivering a variable current, such as an alternating current, through the inductive element. The variable current in the inductive element generates a changing magnetic field. The changing magnetic field penetrates the susceptor appropriately positioned relative to the inductive element and creates eddy currents inside the susceptor. The susceptor has an electrical resistance to eddy currents, so the susceptor is heated by Joule heating due to the flow of eddy currents against this resistance. In cases where the susceptor contains a ferromagnetic material, such as iron, nickel or cobalt, heat is also generated by magnetic hysteresis losses in the susceptor, i.e. in the magnetic material as a result of the alignment of magnetic dipoles with a changing magnetic field. It can be created by various orientations of magnetic dipoles. In induction heating, compared to heating by conduction, for example, heat is generated inside the susceptor, allowing rapid heating. Moreover, no physical contact is required between the induction heater and the susceptor, allowing enhanced freedom in construction and application.

The induction heating assembly of the example device 100 includes a susceptor arrangement 132 (referred to herein as a “susceptor”), a first inductor coil 124, and a second inductor coil 126. The first and second inductor coils 124, 126 are made of electrically conductive material. In this example, the first and second inductor coils 124 and 126 are made of Litz wire/cable wound in a helical manner to provide the helical inductor coils 124 and 126. Litz wire includes a plurality of individual wires that are individually insulated and twisted together to form a single wire. Litz wires are designed to reduce skin effect losses in the conductor. In the example of device 100, first and second inductor coils 124, 126 are made of copper Litz wire with a rectangular cross-section. In other examples, the Litz wire may have cross-sections of other shapes, such as circular.

The first inductor coil 124 is configured to generate a varying first magnetic field for heating the first section of the susceptor 132, and the second inductor coil 126 is configured to heat the second section of the susceptor 132. It is configured to generate a changing second magnetic field for heating. In this example, first inductor coil 124 is adjacent second inductor coil 126 in a direction along the longitudinal axis 134 of device 100 (i.e., first and second inductor coils 124 , 126) do not overlap). Susceptor arrangement 132 may include a single susceptor, or two or more separate susceptors. Ends 130 of the first and second inductor coils 124 and 126 may be connected to the PCB 122 .

It will be appreciated that the first and second inductor coils 124 and 126 may, in some examples, have at least one characteristic that is different from each other. For example, the first inductor coil 124 may have at least one characteristic different from the second inductor coil 126. More specifically, in one example, the first inductor coil 124 may have a different inductance value than the second inductor coil 126. 8, the first and second inductor coils 124, 126 have different lengths such that the first inductor coil 124 is wound over a smaller section of the susceptor 132 than the second inductor coil 126. . Accordingly, the first inductor coil 124 may include a different number of turns than the second inductor coil 126 (assuming that the spacing between individual turns is substantially the same). In another example, first inductor coil 124 may be made of a different material than second inductor coil 126. In some examples, the first and second inductor coils 124 and 126 may be substantially identical.

In this example, first inductor coil 124 and second inductor coil 126 are wound in opposite directions. This can be useful when inductor coils are activated at different times. For example, initially, the first inductor coil 124 may be operating to heat a first section/portion of the article 110 and later, the second inductor coil 126 may be operating to heat the first section/portion of the article 110. It may be operating to heat the second section/portion. Winding the coil in opposite directions helps reduce the current drawn in the inactive coil when used with certain types of control circuitry. In Figure 8, the first inductor coil 124 is a right-hand helix, and the second inductor coil 126 is a left-hand helix. However, in other embodiments, the inductor coils 124, 126 may be wound in the same direction, or the first inductor coil 124 may be a left-handed helix and the second inductor coil 126 may be a right-handed helix. .

The susceptor 132 in this example is hollow and thus defines a receptacle in which the aerosol generating material is received. For example, article 110 may be inserted into susceptor 132 . In this example, susceptor 120 is tubular with a circular cross-section.

Susceptor 132 may be manufactured from one or more materials. Preferably, susceptor 132 comprises carbon steel with a coating of nickel or cobalt.

In some examples, susceptor 132 may include at least two materials that can be heated at two different frequencies for selective aerosolization of the at least two materials. For example, a first section of susceptor 132 (heated by first inductor coil 124) may include a first material, and the susceptor (heated by second inductor coil 126) may include The second section of 132) may comprise a second different material. In another example, the first section may include first and second materials, where the first and second materials may be heated differently based on the operation of the first inductor coil 124. The first and second materials may be adjacent along the axis defined by susceptor 132, or may form different layers within susceptor 132. Similarly, the second section may include third and fourth materials, where the third and fourth materials may be heated differently based on the operation of the second inductor coil 126. The third and fourth materials may be adjacent along the axis defined by susceptor 132, or may form different layers within susceptor 132. For example, the third material may be the same as the first material, and the fourth material may be the same as the second material. Alternatively, each of the materials may be different. The susceptor may comprise carbon steel or aluminum, for example.

Device 100 of Figure 8 further includes an insulating member 128, which may be generally tubular and at least partially surrounds susceptor 132. The insulating member 128 may be composed of any insulating material, such as plastic, for example. In this particular example, the insulating member is comprised of polyether ether ketone (PEEK). Insulating member 128 may help insulate various components of device 100 from heat generated by susceptor 132.

The insulating member 128 may also fully or partially support the first and second inductor coils 124 and 126. For example, as shown in FIG. 9, first and second inductor coils 124, 126 are positioned about insulating member 128 and contact the radially outer surface of insulating member 128. . In some examples, the insulating member 128 does not contact the first and second inductor coils 124 and 126. For example, a small gap may exist between the outer surface of the insulating member 128 and the inner surface of the first and second inductor coils 124 and 126.

In a particular example, susceptor 132, insulation member 128, and first and second inductor coils 124, 126 are coaxial about a central longitudinal axis of susceptor 132.

Figure 10 shows a side view of device 100 in partial cross-section. An outer cover 102 is present in this example. The rectangular cross-sectional shape of the first and second inductor coils 124 and 126 is more clearly visible.

Device 100 further includes a support 136 that engages one end of susceptor 132 to hold susceptor 132 in place. Support 136 is connected to second end member 116 .

The device may also include a second printed circuit board 138 associated within control element 112 .

Device 100 further includes a spring 142 and a second cover/cap 140 arranged toward the distal end of device 100. Spring 142 allows second cover 140 to open to provide access to susceptor 132. A user may open the second cover 140 to clean the susceptor 132 and/or the support portion 136.

Device 100 further includes an expansion chamber 144 extending away from the proximal end of susceptor 132 toward opening 104 of the device. Located at least partially within the expansion chamber 144 is a retention clip 146 for retaining the article 110 against the article 110 when received within the device 100. Expansion chamber 144 is connected to end member 106.

FIG. 10 is an exploded view of the device 100 of FIG. 9 with the outer cover 102 omitted.

FIG. 11A depicts a cross-sectional view of a portion of device 100 of FIG. 9 . Figure 11b depicts an enlarged view of the area of Figure 11a. 11A and 11B show an article 110 housed within a susceptor 132, where the article 110 is dimensioned such that the exterior surface of the article 110 abuts the interior surface of the susceptor 132. This ensures that heating takes place most efficiently. Article 110 in this example includes aerosol generating material 110a. Aerosol generating material 110a is positioned within susceptor 132. Article 110 may also include other components, such as filters, wrapping materials, and/or cooling structures.

11B shows the outer surface of the susceptor 132 being spaced from the inner surface of the inductor coils 124, 126 by a distance 150 measured perpendicular to the longitudinal axis 158 of the susceptor 132. Shows what has happened. In one particular example, distance 150 is about 3 mm to 4 mm, about 3 to 3.5 mm, or about 3.25 mm.

11B shows the outer surface of the insulating member 128 being spaced from the inner surface of the inductor coils 124, 126 by a distance 152 measured perpendicular to the longitudinal axis 158 of the susceptor 132. Additionally, what has been done is shown. In one particular example, distance 152 is approximately 0.05 mm. In another example, distance 152 is substantially 0 mm, such that inductor coils 124, 126 abut and contact insulating member 128.

In one example, susceptor 132 has a wall thickness 154 of about 0.025 mm to 1 mm, or about 0.05 mm.

In one example, susceptor 132 has a length of about 40 mm to 60 mm, about 40 mm to 45 mm, or about 44.5 mm.

In one example, the insulating member 128 has a wall thickness 156 of about 0.25 mm to 2 mm, 0.25 mm to 1 mm, or about 0.5 mm.

In use, the articles 1, 1', 1", 1''' described herein may be inserted into a non-flammable aerosol delivery device, such as device 100 described with reference to FIGS. 7-11B. At least a portion of the mouthpiece 2, 2', 2", 2''' of the article 1, 1', 1", 1''' protrudes from the non-flammable aerosol delivery device 100, and It can be placed into the mouth of the user. An aerosol is generated by heating the aerosol-generating material 3 using the device 100. The aerosol generated by the aerosol-generating material 3 is directed to the user's mouth through the mouthpiece 2. It is passed on by mouth.

The various embodiments described herein are presented merely to aid understanding and teach the claimed features. These embodiments are provided merely as a representative sample of embodiments and are not exhaustive and/or exclusive. The advantages, embodiments, examples, functions, features, structures and/or other aspects described herein are not subject to limitations on the scope of the invention as defined by the claims or equivalents of the claims. It should be understood that other embodiments may be utilized and changes may be made without departing from the scope of the claimed invention. Various embodiments of the present invention suitably include, consist of, or appropriate combinations of other disclosed elements, components, features, parts, steps, means, etc., other than those specifically described herein. , or it may consist essentially of these as essential elements. Additionally, the present disclosure may include other inventions that are not currently claimed but may be claimed in the future.

Claims (40)

1. A component for an article for use in or as a non-combustible aerosol delivery system, comprising:
The component includes a body of material extending longitudinally,
The body of material includes a crimped sheet material formed with a crimp pattern comprising a series of substantially parallel ridges and grooves,
The average spacing between adjacent ridges is greater than about 0.3 mg, and
the average density of the body of material is from about 0.1 to about 0.25 mg/mm3,
A component for an article for use in or as a non-flammable aerosol delivery system. According to claim 1,
the crimp amplitude is less than about 0.7 mm or from about 0.7 mm to about 1.2 mm,
A component for an article for use in or as a non-flammable aerosol delivery system. 1. A component for an article for use in or as a non-flammable aerosol delivery system, comprising:
The component includes a body of material extending longitudinally,
the body of material comprising a crimped sheet material formed to have a crimp pattern comprising a series of substantially parallel ridges and grooves;
The crimp amplitude is less than about 0.7 mm,
the average density of the body of material is from about 0.1 to about 0.25 mg/mm3,
A component for an article for use in or as a non-flammable aerosol delivery system. According to any one of claims 1 to 3,
wherein the average spacing between adjacent ridges is greater than about 0.4 mm, greater than about 0.5 mm, or greater than about 0.6 mm.
A component for an article for use in or as a non-flammable aerosol delivery system. According to any one of claims 1 to 4,
The body of material comprises crimped fibers having a crimp amplitude of less than about 600 μm, less than about 500 μm, or less than about 400 μm.
A component for an article for use in or as a non-flammable aerosol delivery system. According to any one of claims 1 to 5,
The body of material has a density of about 0.15 mg/mm3 to about 0.2 mg/mm3, or about 0.17 mg/mm3 to about 0.2 mg/mm3,
A component for an article for use in or as a non-flammable aerosol delivery system. The method according to any one of claims 1 to 6,
The material body is at least 100 mm, at least 115 mm, at least 150 mm, at least 200 mm, at least 300 mm, at least 400 mm, at least 500 mm, at least 600 mm, at least 700 mm, at least 800 mm, at least 900 mm, or at least 1000 mm, respectively. Having a volume of ㎣,
A component for an article for use in or as a non-flammable aerosol delivery system. The method according to any one of claims 1 to 7,
The body of material has a volume of at least 19 mm3 per mm of the axial length of the body of material, a volume of at least 25 mm3 per mm of the axial length of the body of material, or at least 30 mm3 per mm of the axial length of the body of material. Having a volume of ㎣,
A component for an article for use in or as a non-flammable aerosol delivery system. The method according to any one of claims 1 to 8,
wherein the body of material has a weight of at least 4 mg per mm of the axial length of the body of material, at least 5 mg per mm of the axial length of the body of material, or at least 6 mg per mm of the axial length of the body of material,
A component for an article for use in or as a non-flammable aerosol delivery system. The method according to any one of claims 1 to 9,
wherein the material body is substantially cylindrical,
A component for an article for use in or as a non-flammable aerosol delivery system. The method according to any one of claims 1 to 9,
The material body is wrapped with a plug wrap having a Wet Tensile Strength of less than 1N/15 mm paper width,
A component for an article for use in or as a non-flammable aerosol delivery system. The method according to any one of claims 1 to 11,
the sheet material has a basis weight of at least 20 g/m2, or at least 22 g/m2, or at least 24 g/m2,
A component for an article for use in or as a non-flammable aerosol delivery system. According to claim 12,
The sheet material has a basis weight of at least less than 50 g/m2, less than 45 g/m2 or less than 40 g/m2,
A component for an article for use in or as a non-flammable aerosol delivery system. The method according to any one of claims 1 to 13,
the sheet material has an extended width of 120 mm to 200 mm, or 150 mm to 200 mm,
A component for an article for use in or as a non-flammable aerosol delivery system. The method according to any one of claims 1 to 14,
wherein the sheet material includes paper,
A component for an article for use in or as a non-flammable aerosol delivery system. The method according to any one of claims 1 to 14,
The sheet material comprises reconstituted tobacco,
A component for an article for use in or as a non-flammable aerosol delivery system. The method according to any one of claims 1 to 16,
The closed pressure drop across the material body is at least 1.0 mmH ₂ O per mm of longitudinal length, or at least 1.2 mmH ₂ O per mm of longitudinal length, or at least 1.5 mmH per mm of longitudinal length. ₂ O,
A component for an article for use in or as a non-flammable aerosol delivery system. The method according to any one of claims 1 to 17,
The closing pressure drop across the body of material is less than 3 mmH ₂ O per mm of the longitudinal length, or less than 2.8 mmH ₂ O per mm of the longitudinal length, or less than 2.5 mmH ₂ O per mm of the longitudinal length. less than,
A component for an article for use in or as a non-flammable aerosol delivery system. The method according to any one of claims 1 to 18,
The body of material has an axial length of at least 4 mm, at least 5 mm, at least 6 mm, at least 7 mm, at least 8 mm, at least 9 mm, at least 10 mm, or about 6 mm to about 15 mm.
A component for an article for use in or as a non-flammable aerosol delivery system. According to clause 19,
The material body has an axial length of about 12 mm,
A component for an article for use in or as a non-flammable aerosol delivery system. The method according to any one of claims 1 to 20,
wherein the body of material has a perimeter of at least 16 mm, at least 18 mm, or at least 20 mm,
A component for an article for use in or as a non-flammable aerosol delivery system. The method according to any one of claims 1 to 21,
further comprising an aerosol modifying agent disposed within the material body,
A component for an article for use in or as a non-flammable aerosol delivery system. According to clause 22,
further comprising an aerosol modifier release component comprising the aerosol modifier,
A component for an article for use in or as a non-flammable aerosol delivery system. According to clause 23,
The aerosol modifier release component comprises a capsule,
A component for an article for use in or as a non-flammable aerosol delivery system. According to clause 24,
The capsule includes a solid shell and a liquid core, wherein the liquid core includes the aerosol modifier.
A component for an article for use in or as a non-flammable aerosol delivery system. The method according to any one of claims 1 to 25,
further comprising an aerosol former material applied to the material body,
A component for an article for use in or as a non-flammable aerosol delivery system. According to clause 26,
The aerosol former material includes glycerine, glycerol, propylene glycol, diethylene glycol, triethylene glycol, tetraethylene glycol, 1, 3-butylene glycol, erythritol, meso-Erythritol, ethyl vanillate, ethyl laurate, diethyl suberate (diethyl suberate), triethyl citrate, triacetin, diacetin mixture, benzyl benzoate, benzyl phenyl acetate, tributyrin ), containing one or more of lauryl acetate, lauric acid, myristic acid, and propylene carbonate,
A component for an article for use in or as a non-flammable aerosol delivery system. According to clause 27,
The aerosol former material comprises triethyl citrate or triacetin,
A component for an article for use in or as a non-flammable aerosol delivery system. According to claim 27 or 28,
At least 0.02 mg, 0.03 mg, 0.04 mg, or 0.05 mg of aerosol former material is applied to the body of material per mm of the axial length of the body of material.
A component for an article for use in or as a non-flammable aerosol delivery system. The method according to any one of claims 27 to 29,
wherein no more than 0.5 mg, no more than 0.45 mg, no more than 0.4 mg, no more than 0.35 mg, or no more than 0.3 mg of aerosol former material is applied to the body of material per mm of the axial length of the body of material.
A component for an article for use in or as a non-flammable aerosol delivery system. The method according to any one of claims 1 to 30,
comprising a tubular element positioned within the material body, the tubular element comprising a cavity,
A component for an article for use in or as a non-flammable aerosol delivery system. According to claim 31,
wherein the tubular element comprises paper,
A component for an article for use in or as a non-flammable aerosol delivery system. The method according to any one of claims 1 to 32,
wherein the component is wrapped with a wrapper having a basis weight greater than 40 grams/m2 and/or a thickness greater than 35 μm.
A component for an article for use in or as a non-flammable aerosol delivery system. The method according to any one of claims 1 to 33,
The sheet material comprises fibers having an average length ranging from 2 mm to 6 mm, 2 mm to 5 mm, 2 mm to 4 mm, or 2 mm to 3 mm.
A component for an article for use in or as a non-flammable aerosol delivery system. The method according to any one of claims 1 to 34,
The sheet material comprises a thickness of about 50 to about 100 μm, or about 60 to about 90 μm.
A component for an article for use in or as a non-flammable aerosol delivery system. An article for use in or as a non-flammable aerosol delivery system, comprising:
The article comprises an aerosol-generating material and a downstream portion downstream of the aerosol-generating material, the downstream portion comprising a component according to any one of claims 1 to 35,
An article for use in or as a non-flammable aerosol delivery system. A non-flammable aerosol delivery system comprising the article according to claim 36. According to clause 37,
wherein the non-flammable aerosol delivery system is an aerosol-generating material heating system, and optionally the non-flammable aerosol delivery system is a tobacco heating system.
Non-flammable aerosol delivery system. 1. A method for forming a component for an article for use in a non-flammable aerosol delivery system, comprising:
The above method is,
Applying a crimp pattern to the sheet material, the crimp pattern comprising a series of substantially parallel ridges and grooves, the average spacing between adjacent ridges being greater than about 0.3 mm; and
forming the sheet material into a body of material, wherein the body of material has an average density of about 0.1 to about 0.25 mg/mm3.
A method for forming a component for an article for use in a non-flammable aerosol delivery system. 1. A method for forming a component for an article for use in a non-flammable aerosol delivery system, comprising:
The above method is,
Applying a crimp pattern to the sheet material, the crimp pattern comprising a series of substantially parallel ridges and grooves, the crimp amplitude being less than about 0.7 mm; and
forming the sheet material into a body of material, wherein the body of material has an average density of about 0.1 to about 0.25 mg/mm3.
A method for forming a component for an article for use in a non-flammable aerosol delivery system.