KR20220116532A - Articles for use in an aerosol delivery system - Google Patents

Abstract

An article for use with a non-flammable aerosol providing device comprising a heater, the article comprising: an aerosol generating material comprising at least one aerosol-forming material; and a first tubular body disposed downstream of the aerosol generating material, the first tubular body comprising: a filament tow; and a mouth end section disposed downstream of the first tubular body, wherein when the article is inserted into the non-combustible aerosol providing device, the minimum distance between the heater of the non-combustible aerosol providing device and the first tubular body is at least about It is configured to be 3mm. Also described are systems and methods of manufacture.

Description

Articles for use in an aerosol delivery system

The following relates to articles for use in a non-flammable aerosol-providing system, a non-flammable aerosol-providing system comprising the article, and methods of making the article for use with a non-flammable aerosol-providing device.

Certain tobacco industry products generate aerosols that are inhaled by users 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 generally include mouthpieces through which the aerosol passes to reach the user's mouth.

In some embodiments described herein, in a first aspect, there is provided an article for use with a non-flammable aerosol providing device comprising a heater, the article comprising:

an aerosol-generating material comprising at least one aerosol-forming material;

a first tubular body disposed downstream of the aerosol generating material and comprising a filament tow; and

a mouth end section disposed downstream of the first tubular body;

The article is configured such that, when the article is inserted into the non-combustible aerosol providing device, the minimum distance between the heater of the non-combustible aerosol providing device and the first tubular body is at least about 3 mm.

In some embodiments described herein, in a second aspect, a system is provided, the system comprising:

a non-flammable aerosol providing device comprising a heater; and

23. It comprises an article according to any one of claims 1-22.

In some embodiments described herein, in a third aspect, there is provided a method of making an article for use with a non-flammable aerosol providing device comprising a heater, the method comprising:

providing an aerosol-generating material comprising at least one aerosol-forming material;

disposing the tubular body downstream of the aerosol generating material, wherein the tubular body comprises a filament tow; and

placing the mouth end section downstream of the tubular body;

The article is configured such that when the article is inserted into the non-combustible aerosol providing device, the minimum distance between the heater of the non-combustible aerosol providing device and the tubular body is at least about 3 mm.

Hereinafter, embodiments will be described by way of non-limiting example only with reference to the accompanying drawings.
1 illustrates an article for use in a non-combustible aerosol delivery system, the article comprising a mouth end section, which includes a first hollow tubular body, a second hollow tubular body, and a first hollow tubular body and a second hollow tubular body; and a cylindrical body disposed between the bodies.
2 illustrates an article for use in a non-combustible aerosol providing system, the article comprising an aerosol generating section configured to extend a minimum distance away from a heater of the non-combustible aerosol providing system.
3 illustrates an article for use in a non-flammable aerosol providing system, the article comprising a cavity downstream of an aerosol generating material formed by a wrapper.
4 illustrates an article for use in a non-flammable aerosol delivery system, the article comprising an alternative first mouth end section.
4A illustrates an article for use in a non-flammable aerosol delivery system, the article comprising an alternative second mouth end section.
4B illustrates an article for use in a non-flammable aerosol delivery system, the article comprising an alternative third mouth end section.
5 illustrates an article for use in a non-combustible aerosol delivery system, the article comprising a mouth end section comprising a material body having a non-circular cross-section.
6 schematically illustrates the steps of a method of manufacturing an article.
7 is a perspective view of a non-flammable aerosol providing device for generating an aerosol from the aerosol generating material of the articles of FIGS. 1 , 2 , 3 , 4 , 4A, 4B and 5 ;
8 illustrates the device of FIG. 7 with the outer cover removed and no articles present.
9 is a side view in partial cross-section of the device of FIG. 7 ;
Fig. 10 is an exploded view of the device of Fig. 7 with the outer cover omitted;
11A is a cross-sectional view of a portion of the device of FIG. 7 ;
FIG. 11B is an enlarged view of a region of the device of FIG. 11A .

As used herein, the term “delivery system” is intended to include systems that deliver at least one substance to a user and includes:

Combustible aerosol delivery systems, for example, for cigarettes, cigarillos, cigars, and pipes, roll-your-own or homemade Tobacco for (make-your-own) cigarettes (whether based on tobacco, tobacco derivatives, puffed tobacco, reconstituted tobacco, tobacco substitutes or other smokeable materials);

Non-combustible aerosol delivery systems that release compounds from an aerosol-generating material without combusting the aerosol-generating material, such as electronic cigarettes, tobacco heating products, and hybrids for generating an aerosol using a combination of aerosol-generating materials hybrid systems; and

at least one substance without forming an aerosol, including but not limited to lozenges, gums, patches, and oral products such as, but not limited to, inhalable powders and oral tobacco containing snus or moist snuff. Aerosol-free delivery systems that deliver orally, nasally, transdermally or otherwise to a user, wherein the at least one substance may or may not include nicotine.

In accordance with the present disclosure, a “flammable” aerosol delivery system is one in which a component aerosol generating material of the aerosol delivery system (or a component thereof) is combusted during use to facilitate delivery of at least one substance to a user. ) or a burned system.

In accordance with the present disclosure, a “non-combustible” aerosol delivery system comprises a component aerosol generating material of an aerosol delivery system (or a component thereof) to facilitate delivery of at least one substance to a user. It is a system that is neither combusted nor burned.

In embodiments described herein, the delivery system is a non-combustible aerosol delivery system, such as a powered non-combustible 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 prerequisite. point should be noted.

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

In one embodiment, the non-flammable aerosol delivery system is a hybrid system that generates an aerosol using a combination of aerosolable materials, one or more of which can be heated. Each of the aerosolable materials may be, for example, in the form of a solid, liquid or gel, and may or may not retain nicotine. In one embodiment, the hybrid system comprises a liquid or gel aerosolable material and a solid aerosolable material. Solid aerosolable materials may include, for example, tobacco or non-tobacco products.

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

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

A consumable is an article comprising or constituting an aerosol generating material, some or all of which is 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 area, an aerosol generating material delivery component, an aerosol generating area, 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, that emits heat such that the aerosol generating material generates an aerosol in use. The heater may include, for example, a combustible material, a material heatable by electrical conduction, or a susceptor.

In some embodiments, a non-flammable aerosol providing system, such as its non-flammable aerosol providing device, may 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 exothermic power source comprises a carbon substrate capable of supplying energy to distribute power in the form of heat to an aerosol generating material or a heat transfer material proximate to the exothermic power source.

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

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

In some embodiments, the substance to be delivered may be an aerosol generating material or a material not intended to be aerosolized. Where appropriate, both materials may include one or more active ingredients, one or more flavors, one or more aerosol former materials, and/or one or more other functional materials.

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

An aerosol generating material is a material capable of generating an aerosol when energized, for example by heating, irradiating or otherwise. The aerosol generating material may be, for example, in the form of a solid, liquid or gel, which may or may not retain active substance 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” (ie, non-fibrous). In some embodiments, the amorphous solid may be a dried gel. An amorphous solid is a solid material capable of holding some fluid, such as a liquid, therein. In some embodiments, the aerosol generating material may comprise, for example, from about 50 wt %, 60 wt %, or 70 wt % amorphous solids to about 90 wt %, 95 wt % or 100 wt % amorphous solids.

The aerosol generating material may comprise 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 comprise one or more components 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 vanillate in ethyl laurate, diethyl subrate, triethyl citrate, triacetin, diacetin mixture, benzyl benzoate, benzyl phenyl acetate, tributyrine, lauryl acetate, lauric acid, myristic acid, and propylene carbonate It may include more than one.

The one or more other functional materials may include one or more of pH adjusters, colorants, preservatives, binders, fillers, stabilizers, and/or antioxidants.

A material may be present on or within a support to form a 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. can In some embodiments, the support comprises 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.

Aerosol modifiers are substances, typically located downstream of the aerosol generating region, configured to modify the aerosol generated, for example, by altering the taste, flavor, acidity or other properties of the aerosol. The aerosol modifier may be provided in an aerosol modifier releasing component that is operable to selectively release the aerosol modifier.

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

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. Since the heating material may be a magnetic material, 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 devices. A device configured to generate a changing magnetic field is referred to herein as a magnetic field generator.

Induction heating is a process in which an electrically conductive object is heated by impregnating the object with a changing magnetic field. This process is described by Faraday's law of induction and Ohm's law. An induction heater may include an electromagnet and a device for passing a changing current, such as alternating current, through the electromagnet. When the electromagnet and the heated object are relatively properly positioned so that the resulting changing magnetic field generated by the electromagnet penetrates the object, one or more eddy currents are created inside the object. An object has resistance to the flow of currents. Thus, when these eddy currents are created in an object, their flow against the object's electrical resistance causes the object to heat up. This process is called Joule, ohmic or resistance heating. An object that can be inductively heated is known as a susceptor.

In one embodiment, the susceptor is in the form of a closed circuit. It has been found that when the susceptor is in closed circuit form, the magnetic coupling between the susceptor in use and the electromagnet is improved, which results in greater or improved Joule heating.

Magnetic hysteresis heating is a process in which an object made of a magnetic material is heated by impregnating the object with a changing magnetic field. A magnetic material may be considered to include many atomic-scale magnets or magnetic dipoles. When a magnetic field penetrates these materials, the magnetic dipoles align with the magnetic field. Thus, when a changing magnetic field, for example an alternating magnetic field as generated by an electromagnet, penetrates a magnetic material, the orientation of the magnetic dipoles changes with the varying magnetic field applied. This magnetic dipole reorientation causes heat generation in the magnetic material.

When an object is both electrically conductive and magnetic, penetrating the object by a changing magnetic field can cause both Joule heating and hysteresis heating in the object. Moreover, the use of magnetic materials may intensify the magnetic field, which may aggravate Joule heating.

In each of the above processes, heat is generated inside the object itself rather than by an external heat source by heat conduction, so the rapid change of the object, particularly through the selection of suitable object materials and geometries, appropriate varying magnetic field magnitudes and orientations for the object, A temperature rise and a more uniform heat distribution can be achieved. Moreover, induction heating and magnetic hysteresis heating do not need to provide a physical connection between the source of the changing magnetic field and the object, so design freedom and control over the heating profile can be greater and the cost can be lowered.

Articles, e.g., rod-shaped articles, are often named according to product length: "regular" (typically in the range from 68 to 75 mm, e.g., in the range from about 68 mm to about 72 mm), "short" or "mini ( mini)" (68mm or less), "king-size" (typically in the range of 75-91mm, e.g., in the range of about 79mm to about 88mm), "long" or "super-king" )" (typically in the range of 91 to 105 mm, eg, in the range of about 94 mm to about 101 mm) and "very-long" (typically in the range of about 110 mm to about 121 mm).

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

Thus, a king-size, super-slim type article would, for example, have a length of about 83 mm and a circumference of about 17 mm.

Each type can be made with mouthpieces of different lengths. The mouthpiece length will be between about 30 mm and 50 mm. The 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, and yes It is overlapped with the aerosol generating material, for example in the form of a rod of base material, to connect the mouthpiece to the rod.

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

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

The filament tow or filter material described herein may comprise a cellulose acetate fiber tow. In addition, the filament tow is polyvinyl alcohol (PVOH), polylactic acid (PLA), polycaprolactone (PCL), poly(1-4 butanediol succinate) (poly(1- 4 butanediol succinate)) (PBS), poly(butylene adipate-co-terephthalate) (PBAT), starch based materials, cotton, aliphatic polyester materials and polysaccharides It may be formed using other materials used to form the 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 cellulose acetate tow, or the tow may not be plasticized. The tow may have any suitable specification, such as fibers having a cross-section that is a 'Y' shape, an 'X' shape or an 'O' shape. The fibers of the tow may have filamentary denier values of 2.5 to 15 denier per filament, such as 8.0 to 11.0 denier per filament, and total denier values of 5,000 to 50,000, such as 10,000 to 40,000. have. Viewed in cross-section, the fibers may have an isoperimetric ratio L2/A of 25 or less, preferably 20 or less, or more preferably 15 or less, where L is the length of the perimeter of the cross-section and A is the cross-sectional area . The filter materials described herein also include cellulosic materials such as paper. Such materials may have a relatively low density, such as from about 0.1 to about 0.45 grams per cubic centimeter, to allow air and/or aerosol to pass through the material. Although described as filter materials, these materials may have a primary purpose, such as increasing a component's resistance to suction, but per se are not relevant to filtration.

As used herein, the term “tobacco material” refers to any material, including tobacco or derivatives thereof 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 comprise one or more of ground tobacco, tobacco fiber, chopped tobacco, extruded tobacco, tobacco stem, tobacco lamina, reconstituted tobacco and/or tobacco extract.

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

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

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

As noted herein, an active substance may include or be derived from one or more herbal medicines or components, derivatives or extracts thereof. As used herein, the term "herbal herbal medicine" refers to extracts, leaves, bark, fibers, stems, roots, seeds, flowers, fruits, pollen, husk. , shells, and the like, including any material derived from plants. Alternatively, this material may contain an active compound naturally present in the synthetically obtained herbal medicine. This material may be in the form of liquid, gas, solid, powder, dust, pulverized particles, granules, pellets, shreds, strips, sheets, and the like. Examples of herbal medicines include tobacco, eucalyptus, star anise, hemp, cocoa, cannabis, fennel, lemongrass, peppermint, spearmint, rooibos, chamomile, flax ), ginger, ginkgo biloba, hazel, hibiscus, laurel, licorice (licorice), matcha, mate, orange skin ), papaya, rose, sage, tea (such as green or black tea), thyme, cloves, 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 yll), baobab, or any combination thereof. The mint may be selected from the following mint varieties. Mentha arvensis, Mentha c.v., Mentha niliaca, Mentha piperita, Mentha piperita citrata c.v. (Mentha piperita c.v.), Mentha spicata crispa, Mentha cordifolia, Mentha longifolia, Mentha suaveolens variegata, Mentha Mentha pulegium), Mentha spicata c.v. and Mentha suaveolens.

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

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

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

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

As used herein, the terms "flavour" and "flavourant" refer to a desired taste, aroma ( Refers to materials that can be used to produce aroma) or other somatosensorial sensations. These include naturally occurring flavoring materials, herbal medicinals, extracts of herbal medicinals, synthetically obtained materials or combinations thereof (eg, tobacco, cannabis, licorice (licorice candies), hydrangea). , eugenol, Japanese white bark magnolia leaf, chamomile, fenugreek, cloves, maple, matcha, menthol, Japanese mint, anise Anise, cinnamon, turmeric, Indian spices, Asian spices, herbs, hepatica, cherry, berry, red berry, cranberry, peach, apple, orange, Mango, Clementine, Lemon, Lime, Tropical Fruit, Papaya, Rhubarb, Grape, Durian, Dragon Fruit, Cucumber, Blueberry, Mulberry, Citrus fruits, Drambuie, Bourbon bourbon, scotch, whiskey, gin, tequila, rum, spearmint, peppermint, lavender, aloe vera, cardamom, celery, cascarilla ), nutmeg, sandalwood, bergamot, geranium, khat, naswar, betel, shisha, pine, honey essence, rose oil ( rose oil, vanilla, lemon oil, orange oil, orange blossom, cherry blossom, cassia, caraway, cognac, jasmine, ylang-ylang ), sage, fennel, wasabi, pepper, ginger, coriander, coffee, hemp, mint oil from any species of the genus Mentha, eucalyptus, octagonal, cocoa, lemongrass, rooibo sage, flax, ginkgo, hazel, hibiscus, laurel, mate, orange peel, rose, tea (such as green or black tea), thyme, juniper, elderflower, basil, bay leaf, cumin, oregano , paprika, rosemary, saffron, lemon peel, mint, perilla, turmeric, coriander, myrtle, cassis, valerian, pimento, mace, damian, marjoram, olive, lemon balm, lemon basil, chive, carbi , verbena, tarragon, limonene, thymol, camphene), flavor enhancers, bitterness receptor site blockers, sensorial receptor site activators or stimulators, sugars and/or sugar substitutes (eg sucralose, acesulfame potassium, aspartame, saccharine, cyclamates) (cyclamates), lactose, sucrose, glucose, fructose, sorbitol or mannitol), and other additives such as charcoal, chlorophyll, minerals, Herbal medicines or breath freshening agents may be included. These may be imitation, synthetic or natural ingredients or blends thereof. They may be in any suitable form, for example a liquid such as an oil, a solid such as a powder or a gas.

In some embodiments, the flavor comprises menthol, spearmint and/or peppermint. In some embodiments, the flavor includes flavoring ingredients of cucumber, blueberry, citrus and/or redberry. In some embodiments, the flavor comprises eugenol. In some embodiments, the flavor comprises flavor ingredients extracted from tobacco. In some embodiments, the flavor comprises flavor ingredients extracted from cannabis.

In some embodiments, flavor is a sensation intended to achieve a somatosensory sensation that is normally chemically induced and perceived by stimulation of the fifth cranial nerve (trigeminal nerve) in addition to or instead of smell or taste nerves. may include sensates, which may include agents that provide fever, cold, tingling, and numbing effects. A suitable exothermic agent may be, but is not limited to, vanillyl ethyl ether, and a suitable cooling agent may be, but is not limited to, eucolyptol, WS-3.

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

1-5 illustrate various articles 1a-1g used as part of a non-flammable aerosol delivery system. The article may be used, for example, with a non-flammable aerosol providing device 100 comprising a heater 101 according to embodiments (see FIGS. 7-11B )). In this example and other examples described herein, the article may be a tobacco heating product consumable.

Referring to FIG. 1 , article 1a comprises: a rod of aerosol-generating material 2 comprising at least one aerosol-forming material; a first tubular body (3) disposed downstream of the aerosol generating material (2) and comprising a filament tow; and a mouth end section 20 disposed downstream of the first tubular body 3 . The article 1a has a minimum distance d between the heater 101 of the non-combustible aerosol providing device 100 and the tubular body 3 when the article 1a is inserted into the non-combustible aerosol providing device 100 . It is configured to be at least about 3 mm. In this example, the aerosol generating material is a tobacco material as described herein.

The minimum distance d between the heater 101 and the first tubular body 3 of the non-flammable aerosol providing device 100 is such that the heat from the heater 101 breaks the filament tow of the first tubular body 3 . prevent it from doing In particular, the filament tow may be a cellulose acetate tow reinforced with a plasticizer as is known in the art. Heat from the heater 101 may cause the first tubular body 3 to shrink. This is avoided by providing a gap between the first tubular body 3 and the heater 101 .

The minimum distance d may be 3 mm upward. Preferably, the minimum distance d is from about 3 mm to about 18 mm, more preferably from about 3 mm to about 15 mm, such as from about 3 mm to about 12 mm, such as from about 3 mm to about 10 mm and anything in between. . The illustrated minimum distances d include 3mm, 4mm, 5mm, 6mm, 7mm, 8mm, 9mm and 10mm.

The article 1a includes a mouthpiece section 20 at the mouth end of the article 1a.

In each embodiment, the article comprises a wrapper (6) at least partially surrounding the aerosol-generating material (2) and the first tubular body (3) for connecting the aerosol-generating material (2) to the first tubular body (3) further includes The wrapper may extend along the entire length of the article 1a to attach the mouth end section 20 . Although illustrated as extending the entire length of the article 1a , the wrapper may alternatively extend only partially along the length of the aerosol-generating material 2 , for example from 3 mm above the aerosol-generating material 2 to It can be extended by 10mm. The aerosol generating material may be a wrapper of the wrapper 10 , also referred to herein as a further wrapper 10 .

The wrapper 6 may be a paper material comprising a citrate such as sodium nitrate or potassium nitrate. In these examples, the wrapper 6 may have a citrate content of 2% by weight or less, or 1% by weight or less. This reduces carbonization of the wrapper 6 when the article 1a is heated in the non-flammable aerosol providing device 100 .

The first tubular body 3 is configured to act as a heat dissipator to reduce the 'hot puff' phenomenon. A 'hot puff' is defined as an aerosol delivered to a user at uncomfortably high temperatures. The hot puff may be exacerbated if the user inhales the aerosol through the heated article 1a at a high rate, reducing the time for heat within the aerosol to dissipate. When inserted into the non-flammable aerosol providing device 100 , the first tubular body 3 moves from the heater 101 to the mouth end section to provide space to dissipate heat before the aerosol reaches the mouth end section 20 . separate Moreover, it should be understood that heat will be conducted away from the aerosol and into the first tubular body 3 as it is drawn through the aerosol. As such, the first tubular body 3 acts as a heat sink.

The first tubular body 3 preferably has a wall thickness of at least about 325 μm and at most about 2 mm, preferably between 500 μm and 1.5 mm, more preferably between 750 μm and 1 mm. In this example, the first tubular body 3 has a wall thickness of about 1 mm. In alternative examples, the wall thickness may be from about 0.5 mm to about 3 mm, such as from about 1 mm to about 2.5 mm, or about 2 mm. The “wall thickness” of the first tubular body 3 corresponds to the thickness of the wall of the first tubular tube 3 in the radial direction. This can be measured using, for example, a caliper. In some examples where the wall thickness is non-uniform, the wall thickness is the minimum wall thickness of the tubular body 3 .

In some embodiments, the thickness of the wall of the first tubular body 3 is at least 325 microns, and preferably at least 400, 500, 600, 700, 800, 900 or 1000 microns. In some embodiments, the thickness of the wall of the first tubular body 3 is at least 1250 or 1500 microns.

In some embodiments, the thickness of the wall of the first tubular body 3 is less than 2000 microns, preferably less than 1500 microns.

The increased wall thickness of the first tubular body 3 means that it has a greater thermal mass, which reduces the temperature of the aerosol passing through the first tubular body 3 and It has been found to help reduce the surface temperature of the mouth end section 20 at locations downstream of 3). This is because the larger thermal mass of the first tubular body 3 allows the first tubular body 3 to absorb more heat from the aerosol compared to the first tubular body 3 having a thinner wall thickness. It is thought to be Also, the increased thickness of the first tubular body 3 allows the aerosol to flow centrally inside the mouth end section 20 , such that less heat from the aerosol is transferred to the outer portions of the mouth end section 20 . .

In some embodiments, the permeability of the wall material of the first tubular body 3 is at least 100 Coresta units, and preferably at least 500 or 1000 Coresta units.

It has been found that the relatively high permeability of the first tubular body 3 increases the amount of heat transferred from the aerosol to the first tubular body 3 and thus reduces the temperature of the aerosol. The permeability of the first tubular body 3 has also been found to increase the amount of moisture transferred from the aerosol to the first tubular body 3 , which has been found to improve the feel of the aerosol in the user's mouth. The high transmittance of the first tubular body 3 also makes it easier to cut the vent holes into the first tubular body 3 using a laser, meaning that a lower power laser can be used.

The first tubular body 3 may comprise a filament tow, wherein the filament tow may have a cross-section having an isoperimetric ratio L2/A of 25 or less, 20 or less, or 15 or less, where L is the cross-section. The length of the perimeter and A is the cross-sectional area. In other words, the filaments may comprise a substantially '0' shaped cross-section or at least be configured as close as achievable. For a given denier per filament, filaments having a substantially '0' shaped cross-section have a lower surface area than other cross-sectional shapes, such as 'Y' or 'X' shaped filaments. Thus, the delivery of the aerosol to the user is improved.

It should be understood that the aerosol drawn through the first tubular body 3 passes through the central cavity 3a of the first tubular body 3 and also partly the filaments of the first tubular body 3 itself. By providing filaments with a substantially 'o' shaped cross-section, a greater proportion of the aerosol will pass through the filaments of the first tubular body 3 itself, further increasing heat transfer to the first tubular body 3 .

In some embodiments, the aerosol generating material 2 described herein is a first aerosol generating material 2 and the first tubular body 3 may comprise a second aerosol generating material. For example, the second aerosol generating material may be disposed on the inner surface of the first tubular body 3 .

The second aerosol generating material comprises at least one aerosol former material, and may also comprise at least one aerosol modifier, or other sensate 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.

In use, as the aerosol generated from the first aerosol-generating material 2 is drawn through the first tubular body 3 , the heat from the first aerosol aerosolizes the aerosol-forming material of the second aerosol-generating material to a second It can form an aerosol. The second aerosol may comprise a flavoring agent that may be additional or complementary to the flavor of the first aerosol.

Providing a second aerosol generating material on the first tubular body 3 may result in the generation of a second aerosol that boosts or complements the flavor or visual appearance of the first aerosol.

The article 1a may further comprise at least one venting region 12 arranged to allow external air to flow into the article. In the illustrated embodiments, the ventilation area 12 includes a row of ventilation apertures or perforations cut into the wrapper 6 and any other wrappers provided in place of the ventilation area 12 . The ventilation apertures may extend in line around the circumference of article 1a. Ventilation region 12 may include two or more rows of vent apertures. By providing the ventilation region 12, ambient air can be drawn into the article during use to further cool the aerosol.

In the illustrated embodiments, the at least one ventilation area 12 is arranged to provide outside air into the cavity 3a of the first tubular body 3 . To achieve this, one or more rows of ventilation apertures extend around the circumference of the article over the first tubular body 3 .

In one example, vent area 12 includes first and second parallel rows of perforations formed as laser perforations at positions 17.925 mm and 18.625 mm, respectively, from the mouth end. These perforations pass through the wrapper 6 and other wrappers provided around the first tubular body and the first tubular body 3 . In alternative embodiments, ventilation may be provided at other locations.

Alternatively, ventilation may be provided through a single row of perforations, for example laser perforations, into the portion of the article 1a in which the first tubular body 3 is located. This has been found to improve aerosol formation, which is thought to be the result of airflow through more uniform perforations than multiple rows of perforations for a given level of ventilation.

It should be understood that the exact location of the at least one ventilation area 12 is not essential. In another embodiment, the at least one ventilation area 12 is arranged to provide outside air into the aerosol generating material 2 . To achieve this, one or more rows of ventilation apertures extend around the circumference of the article over the rod of aerosol generating material 2 .

The level of ventilation provided by the at least one ventilation region 12 is generated by the aerosol generating material 2 passing through the article 1a when the article 1a is heated in the non-combustible aerosol providing device 100 . It is within the range of 40% to 70% of the volume of the aerosol produced.

It has been found that aerosol temperature generally increases with lower aeration levels. However, the relationship between aerosol temperature and aeration level does not appear to be linear and has little effect on lower target aeration levels due to, for example, variations in ventilation due to manufacturing tolerances. For example, if the ventilation tolerance is ±15% and the target aeration level is 75%, the aerosol temperature may increase by about 6°C at the lower aeration limit (60% ventilation). However, if the target aeration level is 60%, the aerosol temperature may increase by only about 3.5°C at the lower aeration limit (45% aeration). Accordingly, the target ventilation level of the article may be in the range of 40% to 70%, such as 45% to 65%. For example, the average ventilation level of the at least 20 articles may be between 40% and 70%, such as between 45% and 70% or between 51% and 59%.

In some embodiments, the further wrapper 10 at least partially surrounds the aerosol generating material 2 between the aerosol generating material 2 and the wrapper 6 . In particular, during manufacture of the article, the aerosol generating material is first wrapped by a further wrapper 10 before being attached in combination with the other components of the article 1a by way of the wrapper 6 .

In some embodiments, the additional wrapper 10 surrounding the aerosol generating material has a high level of permeability, such as, for example, 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 additional wrapper 10 can be measured according to ISO 2965:2009 for the determination of air permeability to materials used as cigarette papers, filter plug wraps and filter binding papers.

The additional wrapper 10 may be formed of a material having a high intrinsic level of permeability, an essentially porous material, or any intrinsic level of permeability provided that the final level of permeability is achieved by providing a permeable zone or region to the additional wrapper 10 . It can be formed of a material having a permeability of Providing the permeable additional wrapper 10 provides a route for air to enter the smoking article. The additional wrapper 10 is provided with permeability such that the amount of air entering through the rod of the aerosol generating material 2 is relatively greater than the amount of air entering the article 1a through the venting area 12 of the mouthpiece. can be An article 1a with this arrangement can generate a more palatable aerosol that is more pleasing to the user.

In the embodiment illustrated by FIG. 1 , the article 1a further comprises a second tubular body 5 disposed between the aerosol generating material 2 and the first tubular body 3 . The length of the second tubular body 5 is such that it is away from the heater 101 of the non-combustible aerosol providing device 100 by at least a minimum distance d to provide the necessary separation between the first tubular body 3 and the heater. is to be extended.

The second tubular body 5 defines a cavity 5a between the aerosol generating material 2 and the first tubular body 3 , the length of the cavity 5a being such that the article enters the non-combustible aerosol providing device 100 . It is adapted to extend at least about 3 mm away from the heater 101 of the non-combustible aerosol providing device 100 when inserted.

The second tubular body 5 is formed of paper. Specifically, the second tubular body 5 comprises a paper tube 5 under the wrapper 6 . The paper tube provides additional rigidity to the article 1a around the cavity 5a.

Preferably, the second tubular body 5 has a wall thickness of at least 200 microns, at least 300 microns and/or a permeability of at least 100 Coresta units. By configuring the second tubular body 5 to have a permeability of at least 100 Coresta units, the second tubular body 5 is formed of an aerosol generating material ( 2) absorbs moisture from the aerosol produced by Moreover, papers with permeability greater than 100 Coresta units are generally lighter in weight and easier to work with during manufacture.

In the embodiment illustrated by FIG. 2 , the length of the rod of aerosol generating material 2 is the heater ( 101) from the minimum distance d. Thus, the rod of aerosol-generating material 2 provides the necessary separation between the first tubular body 3 and the heater without the need to space the first tubular body 3 from the rod of aerosol-generating material.

In the embodiment illustrated by FIG. 3 , the first tubular body is separated from the aerosol generating material 2 , such that when the article 1c is inserted into the non-flammable aerosol providing device 100 , the non-combustible aerosol providing device A minimum distance d between the heater 101 of 100 and the first tubular body 3 is maintained. The space between the aerosol generating material 2 and the first tubular body 3 defines a cavity 6a.

1-3 , the mouth end section 20 comprises a third tubular body 22 . The third tubular body 22 defines the mouth end of the articles 1a - 1c. The third tubular body 22 may comprise a tube of cellulose acetate reinforced with a plasticizer. The third tubular body 22 defines a cavity 22a in the mouth end section 20 that opens at the mouth end.

In some embodiments, it may be particularly advantageous to use a tubular body 22 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 up to about 12 mm from the mouth end of the article 1 in some cases when aspirating the aerosol through the article 1 , so that the tubular body 22 is at least 10 mm or at least 12 mm long. has been found to mean that most of the consumer's lips surround this element.

The articles 1a - 1c comprise a body of material 21 . The material body 21 is wrapped in an additional wrapping material, such as the first plug wrap 23 . Preferably, the first plug wrap 23 has a basis weight of less than 50 gsm, more preferably between about 20 gsm and 40 gsm. Preferably, the first plug wrap 23 has a thickness of 30 μm to 60 μm, more preferably 35 μm to 45 μm. Preferably, the first plug wrap 23 is a non-porous plug wrap having a permeability of, for example, less than 100 Coresta units, for example less than 50 Coresta units. However, in other embodiments, the first plug wrap 23 may be a porous plug wrap having a permeability of, for example, greater than 200 Coresta units.

Preferably, the length of the material body 21 is less than about 15 mm. More preferably, the length of the material body 21 is less than about 10 mm. Additionally or alternatively, the length of the material body 21 is at least about 5 mm. Preferably, the length of the material body 21 is at least about 6 mm. In some preferred embodiments, the length of the body of material 21 is from about 5 mm to about 15 mm, more preferably from about 6 mm to about 12 mm, even more preferably from about 8 mm to about 12 mm, most preferably from about 8 mm to about 9 mm. , is 10 mm. In this example, the length of the material body 21 is 10 mm.

In this example, the material body 21 is formed from a filament tow. In this example, the tow used in the material body 21 has a denier per filament (d.p.f.) of 8.4 and a total denier of 21,000. Alternatively, for example, the tow may have a denier per filament (d.p.f.) of 9.5 and a total denier of 12,000. Alternatively, for example, the tow may have a denier per filament (d.p.f.) of 8 and a total denier of 15,000. In this example, the tow comprises plasticized cellulose acetate tow. The plasticizer used in the tow comprises about 7% by weight of the tow. In this example, the plasticizer is triacetin. In other examples, other materials may be used to form the body of material 21 . For example, rather than a tow, the body 21 may be formed of paper, for example, in a manner similar to paper filters known for use in cigarettes. Alternatively, body 21 may be formed of tows other than cellulose acetate, such as polylactic acid (PLA), other materials described herein for filamentary tows, or similar materials. The tow is preferably formed of cellulose acetate. The tow, whether formed of cellulose acetate or of other materials, preferably has a d.p.f. of at least 5, more preferably at least 6, even more preferably at least 7. These denier per filament values provide a tow with relatively coarse and thick fibers with a low surface area, which results in a lower d.p.f. It results in a pressure drop across the material body 21 that is lower than tows with values. Preferably, to achieve a sufficiently uniform body of material 21, the tow has a denier per filament of 12 d.p.f. Hereinafter, preferably 11 d.p.f. Hereinafter, more preferably, it is 10 d.p.f or less.

The total denier of the tow forming the body of material 21 is preferably at most 30,000, more preferably at most 28,000, even more preferably at most 25,000. These total denier values provide a tow that occupies a reduced proportion of the cross-sectional area of the article 1 , which results in a lower pressure drop across the article 1 than tows with higher total denier values. For adequate rigidity of the material body 21, the tow preferably has a total denier of at least 8,000, more preferably of at least 10,000. Preferably, the denier per filament is between 5 and 12 and the total denier is between 10,000 and 25,000. More preferably, the denier per filament is between 6 and 10, and the total denier is between 11,000 and 22,000. Preferably the cross-sectional shape of the filaments of the tow is the same d.p.f. and total denier values. The tow may comprise filaments having a cross-section having an isometric ratio of 25 or less, preferably 20 or less, more preferably 15 or less. In some examples, the material body 21 may include an adsorbent material (eg, charcoal) dispersed within the tow.

In some examples, the material body 21 may include a capsule. Capsules may include breakable capsules, eg, capsules having a hard, brittle shell surrounding a liquid payload. In some examples, a single capsule is used. The capsule is completely embedded within the material body 21 . In other words, the capsule is completely surrounded by the material forming the body. In other examples, a plurality of breakable capsules may be disposed within the body 21 of material, for example two, three or more breakable capsules may be disposed. The length of the body 21 of material may be increased to accommodate the required number of capsules. In examples where multiple capsules are used, the individual capsules may be identical to each other, or may differ from each other in size and/or capsule payload. In other examples, multiple material bodies may be provided, each body holding one or more capsules.

In some embodiments, a non-combustible aerosol providing system is provided comprising a heater 101 and an aerosol modifying component operable to heat the aerosol generating material such that, in use, the aerosol generating material provides an aerosol. The aerosol modifying component includes first and second capsules. The first capsule is disposed in the first portion of the aerosol modifying component and the second capsule is disposed in the second portion of the aerosol modifying component downstream of the first portion.

A first portion of the aerosol modifying component is heated to a first temperature during operation of the heater 101 to produce an aerosol, and a second portion is heated to a second temperature during operation of the heater to produce an aerosol, wherein the second portion The second temperature is at least 4 degrees Celsius lower than the first temperature. Preferably, the second temperature is at least 5, 6, 7, 8, 9 or 10 degrees Celsius lower than the first temperature.

An aerosol modifying component may comprise one or more components of an article. In some embodiments, the aerosol modifying component comprises a material body 21 , and the first and second capsules are disposed in the material body 21 . The material body may comprise cellulose acetate or paper. In another embodiment, the aerosol modifying component comprises two material bodies, the first and second capsules being disposed in the first and second bodies, respectively. In some embodiments, the aerosol modifying component alternatively or additionally comprises one or more tubular elements upstream and/or downstream of the material body or bodies. The aerosol generating component may include a mouthpiece.

In some embodiments, the second capsule is spaced from the first capsule by a distance of at least 7 mm measured as the distance between the center of the first capsule and the second capsule. Preferably, the second capsule is spaced apart from the first capsule by a distance of at least 8, 9 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 comprises an aerosol modifier, which may be the same as or different from the aerosol modifier of the first capsule. In some embodiments, the user may selectively rupture the first and second capsules by applying an external force to the aerosol modifying component to release the aerosol modifying agent from the respective 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 temperature and the second temperature.

The aerosol modifiers of the first and second capsules may be selected based on this temperature difference. For example, a first capsule may comprise a first aerosol modifier having a lower vapor pressure than a second aerosol modifier in the second capsule. If the capsules were both heated to the same temperature, a 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, since the second capsule is heated to a lower temperature, this effect is less pronounced so that a more uniform amount of aerosol modifiers in the first and second capsules are volatilized when the first and second capsules are respectively broken.

In some embodiments, the first and second capsules have the same aerosol modification profiles, which means that both capsules hold the same type of aerosol modifier and the same amount, so that both capsules are heated to the same temperature and break If so, it means that both capsules will result in the same modification of the aerosol. However, since the first capsule is heated to a higher temperature than the second capsule, a greater portion of the aerosol modifier in the first capsule will volatilize relative to, for example, the modifier in the second capsule, and thus more than the second capsule. More aerosols will result in significant modification. Thus, despite the fact that both capsules are the same, making it easier and/or less expensive to manufacture an aerosol modifying component, the user will determine whether the user will destroy the first capsule resulting in a more pronounced modification of the aerosol, the second It can be determined whether breaking the capsules will cause a less pronounced modification of the aerosol or breaking both capsules will result in the greatest 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. Thus, when the second capsule is broken, a greater proportion of the second aerosol modifier will be vaporized compared to the first aerosol modifier compared to when the hotter first capsule is broken while using the system to generate an aerosol. . Thus, the same capsule may be used to generate different modifications of the aerosol based on the position of the capsule in the first or second portion of the aerosol modification component.

The capsule has a core-shell structure. In other words, the capsule comprises a shell encapsulating a liquid formulation, for example a flavoring agent or other agent, which may be any of the flavoring agents or aerosol modifiers described herein. The shell of the capsule may be ruptured by the user to release the flavor or other agent into the body 21 of the material. The first plug wrap 23' may include a barrier coating that renders the material of the plug wrap substantially impermeable to the liquid payload of the capsule. Alternatively or additionally, the second plug wrap 23 and/or the wrapping material 6 may substantially insulate the material of the corresponding plug wrap 23 and/or the wrapping material 6 against the liquid payload of the capsule. It may include a barrier coating to render it permeable.

In some examples, the capsule is spherical and has a diameter of about 3 mm. In other examples, other shapes and sizes of the capsule may be used. The total weight of the capsules may range from about 10 mg to about 50 mg.

For a given tow specification (eg, 8.4Y21000), it is known to generate a tow capability curve representing the pressure drop through the rod length formed using the tow for each tow weight range. Parameters such as rod length and circumference, wrapper thickness and tow plasticizer level are specified, which are combined with the tow specification to produce a tow capability curve, which is the minimum and maximum weights achievable using a standard filter rod forming machine. An indication of the pressure drop that would be provided by different tow weights between These tow capability curves may be calculated using, for example, software provided by tow suppliers. It has been found particularly advantageous to use a body of material 21 comprising a filament tow, which is between about 10% and about 30% of the range between the minimum and maximum weights of the generated tow capability curve for the filamentary tow. phosphorus, a filament tow having a weight per millimeter of length of the material body 21 . This allows between providing sufficient tow weight to avoid shrinkage after body 21 is formed, and assisting in capsule placement within the tow, for capsules of the sizes described herein while providing an acceptable pressure drop. It can provide a possible balance.

The third tubular body 22 is separated from the first tubular body 3 by a material body 21 . The plug wrap 23 attaches the third tubular body 22 to the material body 21 . In particular, during manufacture of the article, the third tubular body 22 is first attached to the material body 21 by the plug wrap 23 before being attached in combination with the other components of the article 1 by the wrapper 6 . is attached

It should be understood that the third tubular body 22 is not essential and may be omitted. For example, in the article 1d illustrated in FIG. 4 , the mouth end of the mouth end section 20 ′ comprises a material body 21 adjacent the first tubular body 3 .

In another embodiment illustrated by FIG. 4A , the mouth end section 20 ″ of the article 1e has a material body 21 separated from the first tubular body 3 by a fourth tubular body 24 . include

In another embodiment illustrated by FIG. 4B , the mouth end section 20 ″ of the article 1f comprises a material body 21 comprising an inner body 21a and an outer body 21b . The outer body 21b is a tube surrounding the inner body 21a. The resistance to gas flow through the length of the inner body 21a is less than the resistance to gas flow through the length of the outer body 21b. This can be achieved by providing the inner body 21a with an outer body 21b having a greater fiber density.

In another embodiment illustrated in the cross-sectional view of FIG. 5 , the mouth end section 20 ″″ of the article 1 g includes a material body 21 having a non-circular cross-section. In this embodiment, the sheet of additional lapping material 23 extending between the body 21 of material and the wrapper 6 comprises a pattern of strength discontinuities. The strength discontinuities result in non-uniformities in the curvature of at least a portion of the further lapping material 23 to provide a non-circular cross-section of the material body 21 . In the illustrated embodiment, the further lapping material 23 and the material body 21 in the further lapping material 23 present a star-shaped cross section.

In the tobacco material described herein, the tobacco material has an aerosol-forming material. In this context, an “aerosol-forming material” is an agent that promotes the generation of an aerosol. The aerosol-forming material may promote the generation of an aerosol by facilitating initial vaporization and/or condensation of the gas into an inhalable solid and/or liquid aerosol. In some embodiments, the aerosol-forming material may improve delivery of flavor from the aerosol-generating material. In general, any suitable aerosol-forming material or agents, including those described herein, may be included in the aerosol-generating material of the present invention. Other suitable aerosol-forming materials include, but are not limited to: sorbitol, glycerol, and polyols such as 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 ( Examples of myristates and aliphatic carboxylic acid esters including triethylene glycol diacetate, triethyl citrate or ethyl myristate and isopropyl myristate For example, methyl stearate, dimethyl dodecanedioate and dimethyl tetradecanedioate. In some embodiments, the aerosol-forming material may be glycerol, propylene glycol, or a mixture of glycerol and propylene glycol. The total amount of glycerol, propylene glycol, or a mixture of glycerol and propylene glycol used may range from 10% to 30%, for example from 15% to 25%, of the tobacco material measured on a dry weight basis. 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 from 0.1% to 0.3% by weight of the composition.

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

A method of making an article for use with a non-flammable aerosol providing device 100 comprising a heater 101 will now be described with reference to FIG. 6 . This way,

providing (S1) an aerosol-generating material (2) comprising at least one aerosol-forming material;

disposing (S2) a first tubular body 3 downstream of the aerosol generating material, wherein the tubular body 3 comprises a filament tow; and

and disposing the mouth end section 20 downstream of the tubular body (S3). The article may be configured such that when the article is inserted into the non-combustible aerosol providing device, the minimum distance between the heater of the non-combustible aerosol providing device and the tubular body is at least about 3 mm.

7 shows an example of a non-flammable aerosol providing device 100 comprising a heater 101 for generating an aerosol from an aerosol generating medium/material, such as the aerosol generating material 2 of the articles described herein. Broadly speaking, the device 100 heats a replaceable article 110 comprising an aerosol generating medium, for example any of the articles described herein, such that an aerosol inhaled by a user of the device 100 . or other inhalable media. Device 100 and replaceable article 110 together form a system.

Device 100 includes a housing 102 (in the form of an outer cover) that surrounds and houses various components of device 100 . The device 100 has an opening 104 at one end through which an article 110 can be inserted for heating by a heater 101 , hereafter referred to as a heating assembly. In use, article 110 may be fully or partially inserted into a heating assembly that may be heated by one or more components of the heating assembly.

The device 100 of this example includes a first end member 106 that attaches to the first end member 106 to close the opening 104 when the article 110 is not in place. and a lid 108 that can be moved with respect to the In FIG. 7 , the lid 108 is shown in an open configuration, however, the lid 108 can be moved to a closed configuration. For example, the user may cause the lid 108 to slide in the direction of arrow “B”.

Device 100 may also include a user-operable control element 112 , such as a button or switch, that when pressed, activates device 100 . For example, a user may turn on device 100 by actuating switch 112 .

Device 100 may also include electrical components, such as 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.

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

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

The other end of the device furthest from the opening 104 may be known as the distal end of the device 100 as it is the end furthest 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 the 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 (eg, lithium-ion batteries), nickel batteries (eg, nickel-cadmium batteries), and alkaline batteries. The battery is electrically coupled to the heating assembly to supply 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 comprises 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. The PCB 122 may also include one or more electrical tracks to electrically connect the various electronic components of the device 100 to each other. For example, battery terminals may be electrically connected to PCB 122 such 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. An induction heating assembly may include an inductive element, eg, one or more inductor coils, and a device for passing a variable current, such as an alternating current, through the inductive element. A variable current in an inductive element generates a changing magnetic field. The changing magnetic field penetrates the susceptor properly positioned relative to the inductive element and creates eddy currents inside the susceptor. The susceptor has an electrical resistance to eddy currents, so the flow of eddy currents to this resistance causes the susceptor to heat up by Joule heating. In cases where the susceptor comprises a ferromagnetic material, such as iron, nickel or cobalt, heat is also removed from the magnetic material by magnetic hysteresis losses in the susceptor, ie as a result of alignment of the magnetic dipoles with a changing magnetic field. can be created by various orientations of the magnetic dipoles of In induction heating, compared to heating by conduction, for example, heat is generated inside the susceptor to allow rapid heating. Moreover, no physical contact is required between the induction heater and the susceptor, allowing for increased freedom in construction and application.

The induction heating assembly of the exemplary 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 and 126 are made of an electrically conductive material. In this example, the first and second inductor coils 124 , 126 are made of a Litz wire/cable that is wound in a helical configuration to provide the helical inductor coils 124 , 126 . Litz wires include 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 having a rectangular cross-section. In other examples, the litz wire may have other shaped cross-sections, such as circular.

The first inductor coil 124 is configured to generate a first varying magnetic field for heating the first section of the susceptor 132 , and the second inductor coil 126 energizes the second section of the susceptor 132 . and generate a changing second magnetic field for heating. In this example, first inductor coil 124 is adjacent to second inductor coil 126 in a direction along longitudinal axis 134 of device 100 (ie, first and second inductor coils 124 ). , 126) do not overlap). The 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 , 126 may, in some examples, have at least one characteristic different from each other. For example, the first inductor coil 124 may have at least one characteristic different from that of 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 . In FIG. 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 the spacing between the individual turns is substantially the same). In another example, the first inductor coil 124 may be made of a different material than the second inductor coil 126 . In some examples, the first and second inductor coils 124 , 126 may be substantially the same.

In this example, the first inductor coil 124 and the second inductor coil 126 are wound in opposite directions. This can be useful when the inductor coils are activated at different times. For example, initially, the first inductor coil 124 may operate to heat a first section/portion of the article 110 , and later, the second inductor coil 126 may operate a second inductor coil 126 of the article 110 . It can operate to heat the section/part. Winding the coils in opposite directions helps to reduce the current induced in the inactive coil when used with certain types of control circuitry. In FIG. 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 and 126 may be wound in the same direction, or the first inductor coil 124 may be a left hand spiral and the second inductor coil 126 may be a right hand spiral. .

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

The susceptor 132 may be made of one or more materials. Preferably, the susceptor 132 comprises carbon steel with a coating of nickel or cobalt.

In some examples, the susceptor 132 can 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 a susceptor (heated by second inductor coil 126 ) ( The second section of 132 may include a second different material. In another example, the first section may include first and second materials, wherein the first and second materials may be heated differently based on operation of the first inductor coil 124 . The first and second materials may be adjacent along an axis defined by the susceptor 132 , or may form different layers within the susceptor 132 . Similarly, the second section may include third and fourth materials, wherein 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 an axis defined by the susceptor 132 , or may form different layers within the 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, for example, carbon steel or aluminum.

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

The insulating member 128 may also fully or partially support the first and second inductor coils 124 , 126 . For example, as shown in FIG. 8 , first and second inductor coils 124 , 126 are positioned around insulating member 128 and in contact with a radially outer surface of insulating member 128 . . In some examples, the insulating member 128 does not abut the first and second inductor coils 124 , 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, the susceptor 132 , the insulating member 128 , and the first and second inductor coils 124 , 126 are coaxial about a central longitudinal axis of the susceptor 132 .

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

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

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

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

The device 100 further includes an expansion chamber 144 extending away from the proximal end of the susceptor 132 towards the opening 104 of the device. Positioned at least in part within the expansion chamber 144 is a retention clip 146 for retaining the article against and against the article 110 when received within the device 100 . The expansion chamber 144 is connected to the end member 106 .

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

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

11B shows that the outer surface of the susceptor 132 is spaced apart from the inner surface of the inductor coils 124 , 126 by a distance 150 measured in a direction perpendicular to the longitudinal axis 158 of the susceptor 132 . show what has been In one specific example, the distance 150 is about 3 mm to 4 mm, about 3 to 3.5 mm, or about 3.25 mm.

11B shows that the outer surface of the insulating member 128 is spaced apart from the inner surface of the inductor coils 124 , 126 by a distance 152 measured in a direction perpendicular to the longitudinal axis 158 of the susceptor 132 . additionally shown. In one particular example, distance 152 is about 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, the susceptor 132 has a wall thickness 154 of about 0.025 mm to 1 mm, or about 0.05 mm.

In one example, the susceptor 132 has a length of between about 40 mm and 60 mm, between about 40 mm and 45 mm, or between 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, any of the articles described herein may be inserted into a non-flammable aerosol providing device, such as the device 100 described with reference to FIGS. 7-11 . At least a portion of the mouthpiece 20, 20', 20'', 20''', 20'''' of the article protrudes from the non-flammable aerosol providing device 100 and can be placed into the user's mouth. An aerosol is generated by heating the aerosol generating material 2 using the device 100 . The aerosol generated by the aerosol generating material 2 is delivered to the mouth of the user through the mouthpieces 20, 20', 20'', 20''', 20''''.

The various embodiments described herein are presented merely to aid understanding, and to teach the claimed features. These examples are provided merely as representative samples of the examples and are not exhaustive and/or exclusive. Advantages, embodiments, examples, functions, features, structures and/or other aspects described herein are equivalent to the claims or limitations on the scope of the invention as defined by the claims. It is not to be considered as limitations on the invention, and it is to be understood that other embodiments may be utilized and that modifications may be made without departing from the scope of the claimed invention. Various embodiments of the present invention suitably include or consist of suitable combinations of elements, components, features, parts, steps, means, etc. other than those specifically described herein. or consist essentially of these elements. Moreover, this disclosure may include other inventions that are not currently claimed but may be claimed in the future.

Claims (27)

An article for use with a non-flammable aerosol providing device comprising a heater, the article comprising:
The article is
an aerosol-generating material comprising at least one aerosol-forming material;
a first tubular body disposed downstream of the aerosol generating material and comprising a filament tow; and
a mouth end section disposed downstream of the first tubular body;
wherein the article is configured such that, when the article is inserted into the non-combustible aerosol providing device, the minimum distance between the heater of the non-combustible aerosol providing device and the first tubular body is at least about 3 mm.
An article for use with a non-flammable aerosol providing device comprising a heater. The method of claim 1,
further comprising a second tubular body disposed between the aerosol generating material and the first tubular body, the length of the second tubular body being such that, when the article is inserted into the non-combustible aerosol providing device, the non-combustible aerosol adapted to extend at least about 3 mm away from the heater of the providing device;
An article for use with a non-flammable aerosol providing device comprising a heater. 3. The method of claim 2,
wherein the second tubular body is formed of paper,
An article for use with a non-flammable aerosol providing device comprising a heater. 4. The method of claim 2 or 3,
wherein the second tubular body has a wall thickness of at least 300 microns and/or a permeability of at least 100 Coresta units;
An article for use with a non-flammable aerosol providing device comprising a heater. The method of claim 1,
the length of the aerosol generating material is adapted to extend at least about 3 mm away from the heater of the non-combustible aerosol providing device when the article is inserted into the non-combustible aerosol providing device.
An article for use with a non-flammable aerosol providing device comprising a heater. The method of claim 1,
a wrapper at least partially surrounding the aerosol generating material and the first tubular body;
An article for use with a non-flammable aerosol providing device comprising a heater. 7. The method of claim 6,
The wrapper defines a cavity between the aerosol generating material and the first tubular body, the length of the cavity being, when the article is inserted into the non-combustible aerosol providing device, from a heater of the non-combustible aerosol providing device. adapted to extend as far as at least about 3 mm;
An article for use with a non-flammable aerosol providing device comprising a heater. 8. The method according to claim 6 or 7,
wherein the wrapper has a citrate content of 1% by weight or less;
An article for use with a non-flammable aerosol providing device comprising a heater. 9. The method according to any one of claims 1 to 8,
wherein the first tubular body has a wall thickness of 0.5 mm to 2.5 mm;
An article for use with a non-flammable aerosol providing device comprising a heater. 10. The method according to any one of claims 1 to 9,
wherein the first tubular body has a length of at least 12 mm;
An article for use with a non-flammable aerosol providing device comprising a heater. 11. The method according to any one of claims 1 to 10,
wherein the filament tow of the first tubular body comprises filaments having a cross-section having an isoperimetric ratio of 25 or less.
An article for use with a non-flammable aerosol providing device comprising a heater. 12. The method according to any one of claims 1 to 11,
at least one ventilation area arranged to allow outside air to flow into the article;
An article for use with a non-flammable aerosol providing device comprising a heater. 13. The method of claim 12,
wherein the at least one venting area is arranged to provide external air into the aerosol generating material;
An article for use with a non-flammable aerosol providing device comprising a heater. 14. The method according to claim 12 or 13,
wherein the at least one vent area is arranged to provide external air into the cavity of the first tubular body;
An article for use with a non-flammable aerosol providing device comprising a heater. 15. The method according to any one of claims 12 to 14,
wherein the at least one ventilation area comprises a single row of ventilation apertures;
An article for use with a non-flammable aerosol providing device comprising a heater. 16. The method according to any one of claims 12 to 15,
wherein the at least one ventilation area comprises two or more rows of ventilation apertures.
An article for use with a non-flammable aerosol providing device comprising a heater. 17. The method according to any one of claims 12 to 16,
The level of ventilation provided by the at least one ventilation region is between 45% and 65% of the volume of aerosol generated by the non-combustible aerosol-providing device passing through the article, or the non-combustible aerosol-providing device passing through the article. within 40% to 60% of the aerosol volume produced by
An article for use with a non-flammable aerosol providing device comprising a heater. 18. The method according to any one of claims 1 to 17,
wherein the mouth end section comprises a third tubular body;
An article for use with a non-flammable aerosol providing device comprising a heater. 19. The method of claim 18,
wherein the third tubular body defines a mouth end of the article;
An article for use with a non-flammable aerosol providing device comprising a heater. 20. The method of claim 18 or 19,
wherein the third tubular body comprises a length greater than about 10 mm or greater than about 12 mm;
An article for use with a non-flammable aerosol providing device comprising a heater. 21. The method according to any one of claims 1 to 20,
wherein the mouth end section includes an inner body and an outer body, wherein the resistance to gas flow through the length of the inner body is less than the resistance to gas flow through the length of the outer body;
An article for use with a non-flammable aerosol providing device comprising a heater. 22. The method according to any one of claims 1 to 21,
further comprising a sheet material, wherein the sheet material has a pattern of strength discontinuities causing non-uniformities in curvature of at least a portion of the sheet material;
An article for use with a non-flammable aerosol providing device comprising a heater. 23. The method according to any one of claims 1 to 22,
wherein the first tubular body comprises a second aerosol generating material;
An article for use with a non-flammable aerosol providing device comprising a heater. 24. The method according to any one of claims 1 to 23,
wherein the aerosol-generating material is wrapped by a wrapper having a permeability level greater than about 2000 Coresta units, and wherein the article comprises a downstream portion downstream of the aerosol-generating material comprising at least one ventilating region.
An article for use with a non-flammable aerosol providing device comprising a heater. 25. The method according to any one of claims 1 to 24,
wherein the mouth end section comprises a body of a filament tow, wherein the filament tow of the body of the filament tow is about 10% of a range between a minimum weight and a maximum weight of a tow capability curve generated for the filamentary tow. to about 30%, including weight per mm length of body,
An article for use with a non-flammable aerosol providing device comprising a heater. As a system,
a non-flammable aerosol providing device comprising a heater, and
26. comprising an article according to any one of claims 1 to 25,
system. A method of making an article for use with a non-flammable aerosol providing device comprising a heater, the method comprising:
The method is
providing an aerosol-generating material comprising at least one aerosol-forming material;
disposing a tubular body downstream of the aerosol generating material, the tubular body comprising a filament tow; and
placing the mouth end section downstream of the tubular body;
the article is configured such that when the article is inserted into the non-combustible aerosol providing device, the minimum distance between the heater of the non-combustible aerosol providing device and the tubular body is at least about 3 mm;
A method of making an article for use with a non-flammable aerosol providing device comprising a heater.

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