JP2023507157A - Components for articles for use in aerosol delivery systems - Google Patents

Abstract

A component for an article for use in an aerosol delivery system includes a fibrous material body, the fibrous material body including first and second additional release components embedded within the fibrous material body. . The first and second additional release components each have a maximum diameter of about 1.5 mm to about 2.5 mm, and the first and second additional release components are distanced less than about 2.5 mm. are separated by Also provided are articles that include this component, and systems that include an article and a non-combustible aerosol delivery device for heating the aerosol-generating material of the article. A method of manufacture is also provided. [Selection drawing] Fig. 1a

Description

The present invention provides components for articles for use in aerosol delivery systems, articles for use in aerosol delivery systems, aerosol delivery systems comprising articles, and components for articles for use in aerosol delivery systems. It relates to a method of manufacturing.

Certain tobacco industry products generate an aerosol during use, which is inhaled by the user. For example, tobacco heating devices heat an aerosol-generating substrate, such as tobacco, to form an aerosol by non-combustion heating of the substrate. Such tobacco industry products generally include a mouthpiece through which the aerosol reaches the user's mouth.

According to an embodiment of the present invention, in a first aspect there is provided a component for an article for use in an aerosol delivery system, the component comprising a fibrous material body, includes first and second additional release components embedded within the body of fibrous material, each of the first and second additional release components having a maximum length of about 1.5 mm to about 2.5 mm. diameter and the first and second additional release components are separated by a distance of less than about 2.5 mm.

According to an embodiment of the present invention, in a second aspect there is provided an article for use in an aerosol delivery system, the article comprising an aerosol-generating material and a component according to the first aspect.

According to an embodiment of the present invention, in a third aspect there is provided a system comprising an article according to the second aspect and a non-combustible aerosol delivery device for heating the aerosol-generating material of the article.

According to an embodiment of the present invention, in a fourth aspect there is provided a method of manufacturing a component for an article for use in an aerosol delivery system, the method comprising first and second additional release configurations inserting an element into a fibrous material stream; and shaping said fibrous material stream into a fibrous material body, said fibrous material body being embedded within said first and second additions. the first and second additional release components each having a maximum diameter of about 1.5 mm to about 2.5 mm, the first and second additional release components comprising: separated by a distance of less than about 2.5 mm.

Embodiments of the invention will now be described, by way of example only, with reference to the accompanying drawings.

1 is a side cross-sectional view of an article including a mouthpiece; FIG. 1b is a cross-sectional view of the mouthpiece shown in FIG. 1a; FIG. FIG. 1 is a perspective view of a non-combustible aerosol delivery device suitable for generating an aerosol from the aerosol-generating material of the article of FIGS. 1a and 1b; Fig. 3 shows the device of Fig. 2 with the outer cover removed and without an item; Figure 3 is a partial cross-sectional side view of the device of Figure 2; Figure 3 is an exploded view of the device of Figure 2 with the outer cover omitted; Figure 3 is a cross-sectional view of a portion of the device of Figure 2; 6B is an enlarged view of a region of the device of FIG. 6A; FIG. 1 is a flow diagram illustrating a method of manufacturing an article with a mouthpiece;

[Detailed description]
As used herein, the term "delivery system" is intended to encompass systems that deliver at least one substance to a user, including
Combustible aerosol delivery systems, such as cigarettes, cigarillos, cigars, and tobacco for pipes or for hand-rolled or handmade cigarettes (whether based on tobacco, tobacco derivatives, expanded tobacco, reconstituted tobacco, tobacco substitutes, or other smoking materials) no matter what),
non-combustible aerosol delivery systems that release compounds from aerosol-generating materials without burning the aerosol-generating materials, such as electronic cigarettes, tobacco heating products, and mixing systems for generating aerosols using combinations of aerosol-generating materials; delivering at least one substance to a user orally, nasally, transdermally, or otherwise without forming an aerosol, whether or not the at least one substance contains nicotine; Aerosol-free delivery systems include, but are not limited to, lozenges, gums, patches, articles containing inhalable powders, and oral products such as oral tobacco, including snus or moist snuff.

According to this disclosure, a “flammable” aerosol delivery system is one in which the aerosol-generating constituent material (or component thereof) of the aerosol delivery system combusts during use to facilitate delivery of at least one substance to a user. It is a system that is destroyed or burned.

In some embodiments, the delivery system is a combustible aerosol delivery system, such as a system selected from the group consisting of cigarettes, cigarillos, and cigars.

In some embodiments, the present disclosure provides filters, filter rods, filter segments, tobacco rods, spills, aerosol modifier releasing components such as capsules, threads or beads, or plug wraps, tipping papers, or cigarette papers. It relates to components, such as paper, for use in combustible aerosol delivery systems.

According to this disclosure, a "non-combustible" aerosol delivery system is one in which the aerosol-generating constituent materials (or components thereof) of the aerosol delivery system are not combustible or combustible to facilitate delivery of at least one substance to a user. It's a system that doesn't work.

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

In some embodiments, the non-combustible aerosol delivery system is an electronic cigarette, also known as a vaping device or electronic nicotine delivery system (END), but the presence of nicotine in the aerosol-generating material is not a requirement. Please note.

In some embodiments, the non-combustible aerosol delivery system is an aerosol-generating material heating system, also known as a non-combustible heated system. One example of such a system is a tobacco heating system.

In some embodiments, the non-combustible aerosol delivery system is a mixing system that uses a combination of aerosol-generating materials to generate an aerosol, and one or more of the aerosol-generating materials can be heated. Each of the aerosol-generating materials can be, for example, in solid, liquid, or gel form, and may or may not contain nicotine. In some embodiments, the mixing system includes a liquid or gel aerosol-generating material and a solid aerosol-generating material. Solid aerosol-generating materials can include, for example, tobacco or non-tobacco products.

Typically, a non-combustible aerosol delivery system can comprise a non-combustible aerosol delivery device and consumables for use with the non-combustible aerosol delivery device.

In some embodiments, the present disclosure relates to consumables comprising aerosol-generating materials configured for use with non-combustible aerosol delivery devices. These consumables are sometimes referred to as articles throughout this disclosure.

In some embodiments, the non-combustible aerosol delivery system, such as the non-combustible aerosol delivery device, can comprise a power source and a controller. The power source can be, for example, a power source or a heat source. In some embodiments, the heat source comprises a carbon substrate that can be excited to dissipate power in the form of heat to an aerosol-generating or heat transfer material proximate the heat source.

In some embodiments, a non-combustible aerosol delivery system can comprise an area for receiving consumables, an aerosol generator, an aerosol generating area, a housing, a mouthpiece, a filter, and/or an aerosol modifier.

In some embodiments, consumables for use with non-combustible aerosol delivery devices include aerosol-generating materials, aerosol-generating material storage areas, aerosol-generating material delivery components, aerosol generators, aerosol-generating areas, housings, webs, A filter, mouthpiece, and/or aerosol modifier may be provided.

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

As used herein, an active agent can be a bioactive material, ie, a material intended to achieve or promote a physiological response. Active substances can be selected, for example, from functional foods, nootropics, psychotropics. The active substance may be naturally occurring or synthetically obtained. Active substances can include, for example, nicotine, caffeine, taurine, theine, vitamins such as B6 or B12 or C, melatonin, cannabinoids, or constituents, derivatives, or combinations thereof. The active substance can include one or more components, derivatives, or extracts of tobacco extract, cannabis, or another botanical material.

In some embodiments, the active agent comprises nicotine. In some embodiments, active agents include caffeine, melatonin, or vitamin B12.

An aerosol-generating material is, for example, a material capable of generating an aerosol when heated, irradiated, or excited in any other way. Aerosol-generating materials can be in the form of, for example, solids, liquids, or gels, and may or may not contain active agents and/or flavorants. In some embodiments, an aerosol-generating material can comprise an "amorphous solid," which alternatively can be referred to as a "monolithic solid" (ie, non-fibrous). In some embodiments, the amorphous solid can be a dry gel. Amorphous solids are solid materials that can hold fluids, such as liquids, within them. In some embodiments, the aerosol-generating material comprises, for example, about 50%, 60%, or 70% by weight of amorphous solids to about 90%, 95%, or 100% by weight of amorphous solids. % can be included.

Aerosol-generating materials can include one or more active agents and/or fragrances, one or more aerosol-forming materials, and optionally one or more other functional materials.

Aerosol-forming materials can include one or more components capable of forming an aerosol. In some embodiments, the aerosol-forming material is glycerin, glycerol, propylene glycol, diethylene glycol, triethylene glycol, tetraethylene glycol, 1,3-butylene glycol, erythritol, mesoerythritol, ethyl vanillate, ethyl laurate, suberin One or more of diethyl acid, triethyl citrate, triacetin, diacetin mixtures, benzyl benzoate, benzyl phenylacetate, tributyrin, lauryl acetate, lauric acid, myristic acid, and propylene carbonate.

The one or more other functional ingredients can include one or more of pH modifiers, colorants, preservatives, adhesives, fillers, stabilizers, and/or antioxidants.

The materials described herein can be present on or within a support to form a matrix. The support can be or include, for example, paper, card, cardboard, cardboard, recycled material, plastic material, ceramic material, composite material, glass, metal, or metal alloy. In some embodiments the support comprises a susceptor. In some embodiments, the susceptor is embedded within the material. In some alternative embodiments, susceptors are present on one or both sides of the material.

A consumable is an article that contains or consists of an aerosol-generating material, some or all of which is intended to be consumed by a user during use. The consumable may comprise 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 web, a mouthpiece, a filter, and/or an aerosol modifier. can be done. The consumable can also include an aerosol generator, such as a heater, that releases heat during use to cause the aerosol-generating material to generate an aerosol. The heater can comprise, for example, a combustible material, a material heatable by electrical conduction, or a susceptor.

Aerosol modifiers are substances configured to modify the produced aerosol, for example by altering the taste, flavor, acidity, or other properties of the aerosol, typically downstream of the aerosol-generating zone. To position. The aerosol modifier can be provided within an aerosol modifier release component operable to selectively release the aerosol modifier.

Aerosol modifiers can be, for example, additives or adsorbents. Aerosol modifiers can include, for example, one or more of flavorants, colorants, water, and carbon adsorbents. Aerosol modifiers can be, for example, solids, liquids, or gels. Aerosol modifiers can be in the form of powders, threads, or granules. The aerosol modifier may be free of filtration material.

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

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 expose the aerosol-generating material to thermal energy to release one or more volatiles from the aerosol-generating material to form an aerosol. be. In some embodiments, the aerosol generator is configured to generate an aerosol from the aerosol-generating material without heating. For example, the aerosol generator can be configured to subject the aerosol-generating material to one or more of vibration, increased pressure, or electrostatic energy.

Induction heating is the process by which an electrically conductive object is heated by penetrating a varying magnetic field into the object. This process is described by Faraday's Law of Electromagnetic Induction and Ohm's Law. An induction heater can comprise an electromagnet and a device for passing a varying current, such as an alternating current, through the electromagnet. One or more eddy currents are generated in the object when the electromagnet and the object to be heated are suitably positioned relative to each other such that the resulting varying magnetic field caused by the electromagnet penetrates the object. Objects have resistance to the flow of electric current. Therefore, when such eddy currents are generated in an object, the object heats up due to the flow against the object's electrical resistance. This process is called Joule, Ohm, or resistance heating. An object that can be heated by induction 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 the form of a closed circuit, magnetic coupling between the susceptor and the electromagnet during use is enhanced, resulting in greater or improved Joule heating.

Magnetic hysteresis heating is the process by which an object made of magnetic material is heated by a varying magnetic field penetrating the object. Magnetic materials can be thought of as including many atomic scale magnets or magnetic dipoles. When a magnetic field penetrates such a material, the magnetic dipoles align with the magnetic field. Thus, when a varying magnetic field, such as an alternating magnetic field provided by an electromagnet, penetrates a magnetic material, the orientation of the magnetic dipole changes with the variation of the applied magnetic field. Such reorientation of the magnetic dipoles generates heat within the magnetic material.

When an object is both electrically conductive and magnetic, the penetration of a varying magnetic field into the object can cause both Joule heating and magnetic hysteresis heating in the object. Additionally, the use of magnetic materials can reinforce the magnetic field, thereby enhancing Joule heating.

Since in each of the above processes heat is generated in the object itself rather than an external heat source through heat conduction, selecting particularly suitable object materials and geometry and suitable varying magnetic field magnitudes and orientations for the object. can achieve rapid temperature rise and more uniform heat distribution in the object. In addition, induction heating and magnetic hysteresis heating do not require providing a physical connection between the varying magnetic field source and the object, allowing greater design freedom and control compared to heating profiles. , the cost can be lowered.

Articles such as consumables described herein, such as rod-shaped articles, may be classified according to the length of the product as "regular" (typically in the range of 68-75 mm, such as about 68 mm to about 72 mm), " short" or "mini" (68 mm or less), "king size" (typically in the range of 75-91 mm, such as about 79 mm to about 88 mm), "long" or "super king" (typically 91-105 mm, eg, in the range of about 94 mm to about 101 mm), and "ultralong" (typically in the range of about 110 mm to about 121 mm).

Articles can also be classified as "regular" (approximately 23-25 mm), "wide" (greater than 25 mm), "slim" (approximately 22-23 mm), "demi-slim" (approximately 19-22 mm), "super are termed "slim" (about 16-19 mm), and "micro-slim" (less than about 16 mm).

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

The article can include an aerosol-generating material and a downstream portion downstream of the aerosol-generating material, and each type can be made with different lengths of the downstream portion. The length of the downstream portion is typically about 30mm to 50mm. A tipping paper connects the downstream portion to the aerosol-generating material, the tipping paper typically having a greater length than the downstream portion, for example 3-10 mm longer, so that the tipping paper covers the downstream portion, for example in the form of a rod. aerosol-generating material and connect the downstream portion to the rod.

The articles described herein, as well as the aerosol-generating materials and downstream portions thereof, can be made in, but not limited to, any of the forms described above.

As used herein, the terms "upstream" and "downstream" are relative terms defined in relation to the direction in which the mainstream aerosol is drawn through the article or device in use.

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

A cross-section of the fiber can have an isoperimetric ratio L ² /A of 25 or less, 20 or less, or 15 or less, where L is the perimeter of the cross-section and A is the area of the cross-section. Such fibers have a relatively low surface area for a given value of denier per filament, thereby improving delivery of the aerosol to the consumer.

As used herein, the term "tobacco material" refers to any material containing tobacco or derivatives or substitutes thereof. The term "tobacco material" can include one or more of tobacco, tobacco derivatives, expanded tobacco, reconstituted tobacco, or tobacco substitutes. The tobacco material may comprise one or more of ground tobacco, tobacco fibers, cut tobacco, extruded tobacco, tobacco stems, tobacco leaves, reconstituted tobacco, and/or tobacco extract.

As described herein, the active substance may comprise or be derived from one or more botanical substances or constituents, derivatives or extracts thereof. As used herein, the term "plant material" includes, but is not limited to, extracts, leaves, bark, fibers, stems, roots, seeds, flowers, fruits, pollen, pods, husks, and the like. , including any material derived from plants. Alternatively, the material can include active compounds naturally occurring in plant matter, synthetically obtained active compounds. Materials can be in the form of liquids, gases, solids, powders, dusts, crushed particles, granules, pellets, strips, strips, sheets, and the like. Exemplary botanicals include tobacco, eucalyptus, star anise, cannabis, cocoa, cannabis, fennel, lemongrass, peppermint, spearmint, rooibos, chamomile, linseed, ginger, ginkgo, hazel, hibiscus, bay leaves, liquorice, matcha. , mate, orange peel, papaya, rose, sage, green or black tea, thyme, cloves, cinnamon, coffee, aniseed, basil, bay leaf, cardamom, coriander, cumin, nutmeg, oregano, paprika, rose Marie, saffron, lavender, lemon peel, mint, juniper, elderflower, vanilla, wintergreen, perilla, turmeric, turmeric, sandalwood, cilantro, bergamot, orange blossom, myrtle, black currant, valerian, pimento, mace, damian, marjoram, olive, lemon balm, lemon basil, chives, caraway, verbena, tarragon, geranium, mulberry, ginseng, theanine, theacrine, maca, ashwagandha, damiana, guarana, chlorophyll, baobab, or any combination thereof . Mint is Mentha Arvensis, Mentha c. v. , Mentha niliaca, Mentha piperita, Mentha piperita citrata c. v. , Mentha piperita c. v, Mentha spicata crispa, Mentha cardifolia, Memtha longifolia, Mentha suaveolens variegata, Mentha pulegium, Mentha spicata c. v. , and Mentha suaveolens mint varieties.

In some embodiments, the active substance comprises or is derived from one or more botanical substances or constituents, derivatives, or extracts thereof, and the botanical substance is tobacco.

In some embodiments, the active substance comprises or is derived from one or more botanical substances or constituents, derivatives, or extracts thereof, wherein the botanical substances include eucalyptus, star anise, selected from cocoa and hemp.

In some embodiments, the active substance comprises or is derived from one or more botanical substances or constituents, derivatives, or extracts thereof, wherein the botanical substance is selected from rooibos and fennel. be done.

In some embodiments, the substance to be delivered comprises perfume.

As used herein, the terms "perfume" and "flavourant" are used to produce a desired taste, aroma, or other somatosensory sensation in products intended for adult consumers where local regulations permit. refers to materials that can Flavoring agents include naturally occurring flavoring materials, botanical substances, extracts of botanical substances, synthetically obtained materials, or combinations thereof (e.g., tobacco, cannabis, licorice, hydrangea, eugenol, magnolia leaf, chamomile). , Fenugreek, Clove, Maple, Matcha, Menthol, Mint, Aniseed (Aniseed), Cinnamon, Turmeric, Indian Spices, Asian Spices, Herbs, Wintergreen, Cherry, Berries, Red Berries, Cranberries, Peach, Apple, Orange, Mango, Clementine, Lemon, Lime, Tropical Fruits, Papaya, Rhubarb, Grape, Durian, Dragonfruit, Cucumber, Blueberry, Mulberry, Citrus, Dranbuie, Bourbon, Scotch, Whiskey, Gin, Tequila, Rum, Spearmint, Peppermint, Lavender , aloe vera, cardamom, celery, cascara, nutmeg, sandalwood, bergamot, geranium, kart, naswar, betel, shisha, pine, honey essence, rose oil, vanilla, lemon oil, orange oil, orange blossom, cherry, Cassia, caraway, cognac, jasmine, ylang ylang, sage, fennel, wasabi, pimento, ginger, coriander, coffee, cannabis, mint oil from any species of the genus Mentha, eucalyptus, star anise, cocoa, lemongrass, rooibos , linseed, ginkgo, hazel, hibiscus, bay leaf, mate, orange peel, rose, teas such as green or black tea, thyme, juniper, elderflower, basil, bay leaf, cumin, oregano, paprika, rosemary, saffron, lemon peel, mint, perilla, turmeric, cilantro, myrtle, black currant, valerian, green pepper, mace, damian, marjoram, olive, lemon balm, lemon basil, chives, caraway, verbena, tarragon, limonene, thymol, camphene), flavor enhancer , bitter taste receptor site blockers, sensory receptor site activators or stimulants, sugars and/or sugar substitutes (e.g., sucralose, acesulfame potassium, aspartame, saccharin, cyclamate, lactose, sucrose, glucose, fructose, sorbitol, or mannitol ), as well as other additives such as charcoal, chlorophyll, minerals, botanicals, or breath fresheners. Perfumes can be imitations, synthetic or natural ingredients, or mixtures thereof. Perfumes can be in any suitable form, for example liquids such as oils, solids such as powders, or gases.

In some embodiments, flavorants include menthol, spearmint, and/or peppermint. In some embodiments, the flavorant comprises cucumber, blueberry, citrus fruit, and/or redberry flavoring ingredients. In some embodiments, the perfume comprises eugenol. In some embodiments, the flavoring agent comprises flavoring ingredients extracted from tobacco. In some embodiments, the flavoring agent comprises flavoring ingredients extracted from cannabis.

In some embodiments, the flavorant provides a somatosensory sensation chemically induced and perceived, typically by stimulation of the 5th cranial nerve (trigeminal nerve) in addition to or instead of the olfactory or gustatory nerves. may include sensates intended for use, which may include agents that provide heating, cooling, stinging, numbing effects. A suitable thermal agent may be, but is not limited to, vanillyl ethyl ether, and suitable cooling agents include, but are not limited to, eucalyptol, WS-3. be able to.

The figures described herein use the same reference numerals to describe equivalent features, items, or components.

Figure Ia is a side cross-sectional view of an article 1 including a component 2, in this example a mouthpiece 2, for use in an aerosol delivery system, at least a portion of the mouthpiece 2 being adapted to be received in the mouth of a user. are placed in FIG. 1b is a cross-sectional view of the mouthpiece shown in FIG. 1a, taken along line A-A' in FIG. 1a. Alternatively, component 2 may constitute a portion of article 1 that is not arranged to be received in the user's mouth.

The article 1 comprises a cylindrical rod of aerosol-generating material 3 connected to a mouthpiece 2, where the aerosol-generating material 3 is tobacco material. Mouthpiece 2 includes a longitudinal axis "X" and a section 6 having a cross-sectional area measured perpendicular to the longitudinal axis. As used herein, the terms "longitudinal" and "longitudinally" refer to directions along the longitudinal axis X of the article 1, and the terms "transversely" and "transversely" refer to the It refers to a direction substantially perpendicular to the longitudinal axis X of 1 .

Section 6 comprises a body of material in this example. The body of material is in this example cylindrical in shape. A first breakable capsule 11a and a second breakable capsule 11b are positioned within the body of material. The body of material preferably has a substantially uniform density throughout the cylinder. The length of the body of material 6 is preferably less than about 15 mm. More preferably, the length of the body of material 6 is less than about 10 mm. Additionally or alternatively, the length of the body of material 6 is at least about 5 mm. The length of the body of material 6 is preferably at least about 6 mm. In some preferred embodiments, the length of the body of material 6 is about 5 mm to about 15 mm, more preferably about 6 mm to about 12 mm, still more preferably about 6 mm to about 10 mm, most preferably about 6 mm, 7 mm, 8 mm. , 9 mm, or 10 mm. In this example, the length of the body of material 6 is 10 mm.

In this example, the body of material 6 is formed from filament tows. In this example, the tow used in the body of material 6 has a denier per filament of 8.4 and a total denier of 21,000. Alternatively, the tow can have a denier per filament (dpf) of, for example, 9.5 and a total denier of 12,000. As a further alternative, the tow is 6 d. p. f. and 17,000 total denier, or 8.0 d. p. f. and a total denier of 15,000. In this example, the tow comprises a plasticized cellulose acetate tow. The plasticizer used in the tow comprises about 8% by weight of the tow, but can be from about 5% to about 12%. In this example the plasticizer is triacetin. In other examples, body 6 can be formed from tows other than cellulose acetate, such as polylactic acid (PLA), other materials described herein for filament tows, or similar materials. The tow is preferably formed from cellulose acetate.

For a given tow specification (such as 8.4Y21000), it is known to generate a tow performance curve representing the pressure drop over the length of the rod formed using the tow for each of a wide range of tow weights. It is Parameters such as rod length and circumference, web thickness, and tow plasticizer level are specified and combined with the tow specifications to generate a tow performance curve, which can be compared to standard filters. Figure 2 shows the pressure drop that should be provided by different tow weights between the minimum and maximum weights achievable using the rod forming machine. Such tow performance curves can be calculated, for example, using software available from the tow supplier. A body of material 6 comprising a filament tow having a weight per mm of length of the body of material 6 of about 10% to about 30% of the range between the minimum weight and maximum weight of a tow performance curve generated for the filament tow. It has been found to be particularly advantageous to use This provides sufficient tow weight to avoid shrinkage after the body 6 is formed, and provides an acceptable pressure drop while still allowing the capsules within the tow, for example for the sizes of capsules described herein, to be kept within the tow. An acceptable balance can be provided that also aids placement.

In other examples, different materials can be used to form the material body 6 . For example, rather than a tow, the body 6 can be formed from paper, in a manner similar to paper filters known for use in cigarettes, for example. Alternatively, body 6 may be formed from tows other than cellulose acetate, such as polylactic acid (PLA), other materials described herein for filament tows, or similar materials. The tow, whether formed from cellulose acetate or from other materials, preferably has a d.d. of at least 5, more preferably at least 6, even more preferably at least 7. p. f. have These denier per filament values provide a tow having relatively coarse and thick fibers with less surface area, resulting in a lower d. p. f. smaller than the tow with value. To achieve a sufficiently uniform body of material, the tow is 12d. p. f. Below, preferably 11d. p. f. 10d. p. f. It is preferred to have a denier per filament of:

The total denier of the tows forming the body of material 6 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 toe that occupies a smaller percentage of the cross-sectional area of the mouthpiece 2, resulting in a higher draw resistance, and therefore pressure drop, at the mouthpiece 2 than toes with higher total denier values. become smaller. For a body of material 6 of suitable stiffness, the tow preferably has a total denier of at least 8,000, more preferably at least 10,000. Preferably the denier per filament is 5-12 and the total denier is 10,000-20,000. More preferably, the denier per filament is 6-10 and the total denier is 11,000-22,000. The cross-sectional shape of the filaments of the tow is preferably "Y" shaped, although in other embodiments the same d. p. f. and other shapes such as "X" shaped filaments with total denier values can also be used.

Within the body of material 6 an aerosol modifier is provided, in this example in the form of capsules 11a, 11b, and an oil-resistant first plug wrap 7 surrounds the body of material 6 . The body of material 6 is in the form of a cylinder with a longitudinal axis and the capsules 11a, 11b are embedded within the body of material 6 so that the capsules 11a, 11b are surrounded by the material forming the body 6 . Capsules 11a, 11b have shells enclosing liquid aerosol modifiers. The maximum cross-sectional area of the capsule measured perpendicular to the longitudinal axis is less than about 28% of the cross-sectional area of the body of material 6 measured perpendicular to the longitudinal axis.

Providing a plurality of capsules, wherein the cross-sectional area of each capsule is less than about 28% of the cross-sectional area of the portion of the mouthpiece 2 provided with the capsules 11a, 11b, a single capsule having a larger cross-sectional area. The pressure drop in the mouthpiece 2 can be reduced compared to the capsule of It has the advantage of not removing a large aerosol mass.

the maximum cross-sectional area of each of the capsules 11a, 11b at its maximum cross-sectional area location is less than 35%, more preferably less than about 28% of the cross-sectional area of the portion of the mouthpiece 2 provided with the capsules 11a, 11b; Even more preferably less than about 25%. For example, the maximum cross-sectional area of each of the capsules 11a, 11b within the body 6 at the location of its maximum cross-sectional area is from about 5% to about 24%, or from about 9% to about 22%, or from about 14% to about 21%. %. For example, for a spherical capsule with a diameter of 2.5 mm, the maximum cross-sectional area of the capsule is 4.91 mm ² . For the mouthpiece 2 described here with a circumference of about 17 mm, the body of material 6 has a circumference of about 16.8 mm and the radius of this component is 2.67 mm, which is 22.46 mm ² corresponds to the cross-sectional area of The maximum cross-sectional area of the capsule is approximately 21% of the cross-sectional area of the mouthpiece 2 in this example. For the mouthpiece 2 described here with a circumference of 21 mm, the body of material 6 has a circumference of 20.8 mm, the radius of this component is 3.31 mm, and the cross-sectional area is 34.43 mm ² . corresponds to The cross-sectional area of the capsule is 14.3% of the cross-sectional area of the mouthpiece 2 in this example. As another example, if the capsule had a diameter of 2 mm, its maximum cross-sectional area would be 3.14 mm ² . In this case, the cross-sectional area of the capsule should be about 14% of the cross-sectional area of the body of material 6 if it has a circumference of about 16.8 mm, and of the body of material 6 if it has a circumference of about 20.8 mm. It should be about 9% of the cross-sectional area. In this example, each of the capsules 11a, 11b has a diameter of 2.5 mm.

Each of the capsules 11a, 11b may constitute a breakable capsule, eg a capsule having a solid frangible shell surrounding a liquid payload. In this example two capsules 11a, 11b are used. The capsules 11 a , 11 b are wholly embedded within the material body 6 . In other words, the capsules 11a, 11b are completely surrounded by the material forming the body 6. In other examples, more than two breakable capsules, such as 3, 4, 5 or more breakable capsules can be arranged in the body of material 6 . The length of the body of material 6 can be increased to accommodate the number of capsules required. In terms of size and/or capsule payload, the individual capsules 11a, 11b can be identical to each other or can be different from each other. Alternatively, multiple bodies of material 6 can be provided, each containing two or more capsules.

Capsules 11a, 11b have a core-shell structure. In other words, each capsule comprises a shell enclosing a liquid agent, such as a flavorant or other agent, the liquid agent being any one of the flavorants or aerosol modifiers described herein. be able to. The capsule shell can be ruptured by the user to release flavorants or other agents into the body of material 6 . The mouthpiece further comprises a second plug wrap 9 and tipping paper 5 . The first plug wrap 7 may constitute a barrier coating to render the plug wrap material substantially impermeable to the liquid payload of the capsule 11 . In this example, the first plug wrap 7 is an oil resistant plug wrap. Alternatively or additionally, for the second plug wrap 9 and/or tip paper 5 to render the material of the plug wrap and/or tip paper substantially impermeable to the liquid payload of the capsules 11a, 11b. of barrier coatings.

In this example the capsules 11a, 11b are spherical and each have a diameter of about 2.5 mm. In other examples, capsules of other shapes and sizes can also be used. The total weight of the combined capsules 11a, 11b can range from about 10 mg to about 50 mg.

In this example, the capsules 11a, 11b are arranged in the body of material 6 at a central longitudinal position. In this case, capsule 11a is arranged such that its center is 2.75 mm away from the upstream end of material body 6 and capsule 11b is arranged so that its center is 2.75 mm away from the downstream end of material body 6. Axially aligned and positioned adjacent to capsule 11a in abutting relationship. Thus, the point just between the 2.5 mm diameter capsules 11a, 11b is 4 mm from each end of the body of material 6. FIG. In other examples, each of the capsules 11a, 11b can be arranged at a position other than the longitudinal center position within the body of material 6, i.e. closer to the downstream end than the upstream end of the body of material 6, or can be located closer to the upstream end than the downstream end of the . Alternatively, the capsules 11a and 11b may not be laterally aligned and may be aligned with each other in a direction along line AA' in FIG. can be deviated. The mouthpiece 2 is preferably configured such that the capsules 11a, 11b and the vent 12 are longitudinally offset from each other within the mouthpiece 2 .

A cross-sectional view of the mouthpiece 2 is shown in FIG. 1b, taken along line A-A' in FIG. 1a. FIG. 1b shows capsule 11b, body of material 6, first plug wrap 7 and second plug wrap 9, and tipping paper 5. FIG. In this example, the capsule 11b is centered on the longitudinal axis of the mouthpiece 2 (not shown). The first and second plug wraps 7 and 9 as well as the tipping paper 5 are arranged concentrically around the material body 6 .

In this case, capsule 11a is substantially the same as capsule 11b. However, in other embodiments, capsules 11a and 11b may differ with respect to structure, shell composition, additional composition, diameter, or any of the other characteristics described herein.

The breakable capsules 11a, 11b have a core-shell structure. That is, the encapsulating or barrier material creates a shell around the core containing the aerosol modifier. The shell structure prevents migration of the aerosol modifier during storage of the article 1, but allows controlled release of the aerosol modifier, also called an aerosol modifier, during use.

In some cases, the barrier material (also referred to herein as encapsulating material) is brittle. The capsule is crushed or otherwise broken or destroyed by the user to release the encapsulated aerosol modifier. Typically, the capsule is ruptured just before heating begins, but the user can choose when to release the aerosol modifier. The term "breakable capsule" refers to a capsule whose shell can be broken by pressure to release the core, and more specifically, when the user desires to release the core of the capsule, use The shell can be ruptured under pressure exerted by one's fingers.

In some cases, the barrier material is heat resistant. That is, in some cases, the barrier will not rupture, melt, or otherwise collapse at temperatures reached at the capsule site during operation of the aerosol delivery device. Illustratively, a capsule positioned within the mouthpiece can be exposed to temperatures in the range of, for example, 30°C to 100°C, with the barrier material continuing to hold the liquid core up to at least about 50°C to 120°C. can hold.

In other cases, the capsule releases the core composition when heated, for example by melting the barrier material or by expanding the capsule and rupturing the barrier material.

The total weight of the capsule can range from about 1 mg to about 100 mg, preferably from about 5 mg to about 60 mg, from about 8 mg to about 50 mg, from about 10 mg to about 20 mg, or from about 12 mg to about 18 mg.

The total weight of the core formulation can range from about 2 mg to about 90 mg, preferably 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.

A capsule according to the invention comprises a core as described above and a shell. The capsule can exhibit a crush strength of about 4.5N to about 40N, more preferably about 5N to about 30N or about 28N (eg, about 9.8N to about 24.5N). Capsule bursting strength can be measured when the capsule is removed from the body of material 6, using a force gauge to measure the force when the capsule is pressed between two flat metal plates and bursts. A suitable measuring device is a Sauter FK50 force gauge with a flat-headed fitting, which can be used to press the capsule against a flat, hard surface with a surface similar to the fitting.

The capsule can be substantially spherical and 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. can have The capsule diameter is 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, 3.2 mm, or 2.5 mm. can be less than Illustratively, the capsule diameter is 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. can be within the range. In some cases, the capsule can have a diameter of about 2.5 mm. These sizes are particularly suitable for incorporating capsules into the articles described herein.

When both capsules are ruptured, the pressure drop or differential pressure (also called draw resistance) within the article, measured as the opening pressure drop (i.e., with the vent opening open), drops by less than about 15 mm _H2O . is preferred. More preferably, the opening pressure drop is reduced by less than about 10 _mmH2O , more preferably less than about 8 _mmH2O or less than about 6 _mmH2O . These values are measured as an average achieved by at least 80 articles made of the same design. Such small changes in pressure drop influence other aspects of product design, such as setting the correct venting level for a given product pressure drop, whether the consumer chooses to break the capsule or not. It means that it can be realized.

The barrier material can include one or more of gelling agents, bulking agents, buffering agents, colorants, and plasticizers.

Suitably, the gelling agent may be, for example, a polysaccharide or cellulose gelling agent, gelatin, gums, gels, waxes, or mixtures thereof. Suitable polysaccharides include alginate, dextran, maltodextrin, cyclodextrin, and pectin. Suitable alginic acids include, for example, alginates, alginic acid esters, or glyceryl alginate. Alginates include ammonium alginate, triethanolamine alginate, and Group I or Group II alginate metal ions such as sodium, potassium, calcium, and magnesium alginate. Ester-type alginic acid includes propylene glycol alginate and glyceryl alginate. In one embodiment, barrier materials include sodium alginate and/or calcium alginate. Suitable cellulosic materials include methylcellulose, ethylcellulose, hydroxyethylcellulose, hydroxypropylcellulose, carboxymethylcellulose, cellulose acetate, and cellulose ethers. The gelling agent can include one or more modified starches. Gelling agents can include carrageenan. Suitable gums include agar, gellan gum, gum arabic, pullulan gum, mannan gum, ghatti gum, tragacanth gum, karaya, locust bean, acacia gum, guar, quince seed and xanthan gum. Suitable gels include agar, agarose, carrageenan, fucoidan, and furcelleran. Suitable waxes include carnauba wax. In some cases, the gelling agent may include carrageenan and/or gellan gum, and these gelling agents are used such that the pressure required to break the resulting capsule is particularly suitable. It is particularly suitable for inclusion as a gelling agent.

The barrier material can include one or more bulking agents such as starches, modified starches (such as oxidized starches), and sugar alcohols such as maltitol.

The barrier material can include a colorant that makes it easier to locate the capsules within the aerosol-generating device during the manufacturing process of the aerosol-generating device. Colorants are preferably selected from among dyes and pigments.

The barrier material can further comprise at least one buffer such as a citrate or phosphate compound.

The barrier material may further comprise at least one plasticizer, which may be glycerol, sorbitol, maltitol, triacetin, polyethylene glycol, propylene glycol, or another polyalcohol with plasticizing properties, and optionally It can be mono-, di-, or tri-acid-type acids, especially citric acid, fumaric acid, malic acid, and the like. The amount of plasticizer ranges from 1 to 30%, preferably from 2 to 15%, even more preferably from 3 to 10% by weight of the total dry weight of the shell.

The barrier material can also include one or more filler materials. Suitable filler materials include starch derivatives such as dextrins, maltodextrins, cyclodextrins (α, β, or γ), or hydroxypropylmethylcellulose (HPMC), hydroxypropylcellulose (HPC), methylcellulose (MC), carboxymethylcellulose ( CMC), polyvinyl alcohol, polyols, or mixtures thereof. Dextrin is a preferred filler. The amount of filler in the shell is at most 98.5 wt%, preferably 25-95 wt%, more preferably 40-80 wt%, even more preferably 50-60 wt% of the total dry weight of the shell. be.

The capsule shell may further comprise a hydrophobic outer layer that reduces the susceptibility of the capsule to moisture-induced deterioration. The hydrophobic outer layer comprises waxes, especially carnauba wax, candelilla wax, or beeswax, carbowax, shellac (in alcoholic or aqueous solutions), ethylcellulose, hydroxypropylmethylcellulose, hydroxylpropylcellulose, latex compositions, polyvinyl alcohol, or combinations thereof. It is preferred that it is selected from the group comprising: More preferably, the at least one moisture barrier is ethyl cellulose or a mixture of ethyl cellulose and shellac.

The capsule core contains an aerosol modifier. The aerosol modifier can be any volatile substance that modifies at least one property of the aerosol. For example, an aerosol material can modify pH, sensory properties, moisture content, delivery characteristics, or fragrance. In some cases, aerosol modifiers can be selected from acids, bases, water, or flavorants. In some embodiments, the aerosol modifier comprises one or more flavorants.

Flavoring agents include mint flavors from any species of the genus Mentha such as licorice, rose oil, vanilla, lemon oil, orange oil, peppermint oil and/or spearmint oil, preferably menthol and/or mint oil, or lavender. , fennel or anise.

In some cases, the flavoring agent includes menthol.

In some cases, the capsule contains at least about 25% w/w flavoring agent (based on the total weight of the capsule), preferably at least about 30% w/w flavoring agent, 35% w/w flavoring agent, It can contain 40% w/w flavor, 45% w/w flavor, or 50% w/w flavor.

In some cases, the core comprises at least about 25% w/w flavorant (based on the total weight of the core), preferably at least about 30% w/w flavorant, 35% w/w flavorant; It can contain 40% w/w flavor, 45% w/w flavor, or 50% w/w flavor. In some cases, the core is about 75% w/w or less flavorant (based on the total weight of the core), preferably about 65% w/w or less flavorant, 55% w/w or less flavorant. , or up to 50% w/w flavoring agents. Illustratively, the capsule contains a flavorant in an amount within the range of 25-75% w/w (based on the total weight of the core), about 35-60% w/w, or about 40-55% w/w. can include

Capsules contain at least about 2 mg, 3 mg, or 4 mg aerosol modifier, preferably at least about 4.5 mg aerosol modifier, 5 mg aerosol modifier, 5.5 mg aerosol modifier, or 6 mg aerosol modifier. can contain.

In some cases, the consumable comprises at least about 7 mg aerosol modifier, preferably at least about 8 mg aerosol modifier, 10 mg aerosol modifier, 12 mg aerosol modifier, or 15 mg aerosol modifier. The core can also contain a solvent that dissolves the aerosol modifier.

Any suitable solvent can be used.

Suitably, when the aerosol modifier includes a flavorant, the solvent can include short or medium chain fats and oils. For example, solvents can include C2-C12 triglycerides, preferably C6-C10 triglycerides, or glycerol triesters such as Cs-C12 triglycerides. For example, solvents can include medium chain triglycerides (MCT-C8-C12), which can be derived from palm oil and/or coconut oil.

Esters can be formed with caprylic acid and/or capric acid. For example, the solvent can include medium chain triglycerides of glyceryl tricaprylate and/or glyceryl tricaprate. For example, solvents can include compounds identified by CAS Registry Numbers 73398-61-5, 65381-09-1, 85409-09-2. Such medium chain triglycerides are odorless and tasteless.

The hydrophilic-lipophilic balance (HLB) of the solvent can be in the range of 9-13, preferably 10-12. A method of making capsules comprises co-extrusion, optionally followed by centrifugation and curing and/or drying. The content of WO2007/010407 is incorporated by reference in its entirety.

In some embodiments, when the aerosol-generating material 3 is heated to deliver an aerosol, such as in the non-combustible aerosol delivery devices described herein, the portion of the mouthpiece 2 in which the capsule is placed is a system reach a temperature of 58-70 degrees Celsius during use to generate an aerosol. As a result of this temperature, the capsule contents are sufficiently warmed to facilitate volatilization of the capsule contents, eg aerosol modifiers, into the aerosol formed by the system as the aerosol passes through the mouthpiece 2 . Warming the contents of the capsules 11a, 11b can be done, for example, before the capsules 11a, 11b are broken, so that when the capsules 11a, 11b are broken, the capsules are released into the aerosol passing through the mouthpiece 2. Contents are released more easily. Alternatively, the contents of the capsules 11a, 11b can be warmed to this temperature after the capsules 11a, 11b are broken, again increasing the release of the contents into the aerosol. The mouthpiece temperature in the range of 58-70 degrees Celsius is high enough to allow the capsule contents to be released more easily, but the outer surface of the portion of the mouthpiece 2 where the capsule is placed is more sensitive to the mouthpiece. Advantageously, it has been found to be low enough so that it does not reach a temperature uncomfortable for the consumer to rupture the capsules 11a, 11b by tightening 2.

The temperature of the portion of the mouthpiece 2 where the capsules 11a, 11b are located can be measured using a digital thermometer with an immersion probe, the digital thermometer measuring the temperature at which the probe passes through the wall of the mouthpiece 2. enters the mouthpiece 2 (forming a seal to limit the amount of ambient air that can leak into the mouthpiece from around the probe) and is positioned proximate to the location of the capsules 11a, 11b, e.g., between the capsules 11a, 11b are arranged to Similarly, a temperature probe can be placed on the outer surface of the mouthpiece 2 to measure the temperature of the outer surface.

Table 2.0 below shows the temperature at the capsule in the mouthpiece 2 of the article used in the aerosol delivery system during the first five puffs. Data are for articles heated using a "standard" heating profile using the coil heating device described herein with reference to FIGS. 2-6, and "boost" heating using the same device. provided for the same article heated using the profile. A "boost" heating profile is selectable by the user and allows higher heating temperatures to be achieved.

As shown in Table 2.0, the temperature of the mouthpiece 2 at the location of the capsule 11b reached a maximum temperature of 61.5°C under the "standard" heating profile and 63.8°C under the "boost" heating profile. reaches the maximum temperature of A maximum temperature within the range of 58° C.-70° C., preferably within the range of 59° C.-65° C., more preferably within the range of 60° C.-65° C. is maintained while maintaining a suitable outer surface temperature of the mouthpiece 2. , 11b has been found to be particularly advantageous with respect to aiding the volatilization of the contents.

The capsules 11a, 11b are rupturable by an external force applied to the mouthpiece 2, for example by the consumer squeezing the mouthpiece 2 using a finger or other mechanism. As mentioned above, the portion of the mouthpiece where the capsule is located is arranged to reach a temperature greater than 58° C. during use of the aerosol delivery system to generate an aerosol. The bursting strength of the capsules 11a, 11b placed in the mouthpiece 2 before heating the aerosol-generating material 3 is preferably between 1500 and 4000 grams force. Preferably, the bursting strength of the capsules 11a, 11b placed in the mouthpiece 2 within 30 seconds of using the aerosol delivery system for generating an aerosol is between 1000 and 4000 grams force. Therefore, the capsules 11a, 11b are able to maintain their bursting strength regardless of whether they are exposed to temperatures above 58°C, for example between 58°C and 70°C, and within this bursting strength range, the capsules It has been found that it allows the capsule to be easily crushable by the consumer while providing sufficient tactile feedback to the consumer that 11a, 11b have been broken. Maintaining such burst strength, as described herein, is suitable for capsules such as polysaccharides, including gum arabic, gellan gum, acacia gum, xanthan gum, or carrageenan, alone or in combination with gelatin. This is achieved by selecting a suitable gelling agent. In addition, a suitable wall thickness should be chosen for the capsule shell.

The burst strength of the capsule placed in the mouthpiece prior to heating of the aerosol-generating material is preferably between 2000 and 3500 grams force or between 2500 and 3500 grams force. Preferably, the burst strength of the capsule placed in the mouthpiece within 30 seconds of use of the system for generating an aerosol is between 1500 and 4000 grams force or between 1750 and 3000 grams force. In one example, the average burst strength of capsules placed in the mouthpiece before heating the aerosol-generating material is about 3175 grams force and placed in the mouthpiece within 30 seconds of using the system to generate the aerosol. The capsules obtained have an average burst strength of about 2345 grams force.

The burst strength of capsules can be tested using a force measuring instrument such as a texture analyzer. Type TA. Using the XTPlus Texture Analyzer, a 6 mm diameter circular metal probe can be placed in the center of the capsule site (ie, 12 mm from the mouth end of mouthpiece 2). The test speed of the probe may be 0.3 mm/sec, and a pre-test speed of 5.00 mm/sec and a post-test speed of 10 mm/sec may be used. The force used can be 5000g. Articles tested were carried using standard test equipment according to the well-known Health Canada smoking formula (55 ml smoke volume applied over 2 seconds every 30 seconds) using a Borgwaldt A14 syringe drive unit. can be inhaled. Three puffs can be performed using this puff scheme and the capsule burst strength within 30 seconds of the third puff can be measured.

The aerosol-generating material 3 delivers an aerosol when heated, for example in a non-combustible aerosol delivery device as described herein forming a system, for example a non-combustible aerosol delivery device comprising a coil. In other embodiments, the article 1 can contain its own heat source without requiring a separate aerosol delivery device, forming an aerosol delivery system.

Aerosol-generating material 3, also referred to herein as aerosol-generating substrate 3, comprises at least one aerosol-forming material. In this example, the aerosol-forming material is glycerol. Alternatively, the aerosol-forming material can be another material or combination thereof as described herein. Aerosol-forming materials have been found to improve the sensory performance of articles by aiding in the transfer of compounds, such as perfume compounds, from the aerosol-forming material to the consumer. However, a problem with adding such aerosol-forming materials to the aerosol-forming material within an article for use in a non-combustible aerosol delivery system is that the aerosol-forming material is delivered by the article when it is aerosolized upon heating. It is possible to increase the mass of the aerosol so that the increased mass allows the aerosol to maintain a higher temperature as it passes through the mouthpiece. As the aerosol passes through the mouthpiece, it transfers heat into the mouthpiece, thereby warming the outer surface of the mouthpiece, including the area that contacts the consumer's lips during use. Mouthpiece temperatures can be significantly higher than the temperature a consumer can be accustomed to when smoking, for example, a conventional cigarette, and the use of such aerosol-forming materials can cause undesirable effects.

Usually, the part of the mouthpiece that contacts the consumer's lips is a paper tube, which is hollow or surrounds a cylinder of filter material.

The mouthpiece 2 of the article 1 comprises an upstream end 2a adjacent to the aerosol-generating substrate 3 and a downstream end 2b remote from the aerosol-generating substrate 3, as shown in FIG. 1a. Mouthpiece 2 has at its downstream end 2b a hollow tubular element 4 formed from filament tows. Advantageously, this has been found to significantly reduce the temperature of the outer surface of the mouthpiece 2 at the downstream end 2b of the mouthpiece which contacts the consumer's mouth when the article 1 is in use. In addition, it has been found that the use of tubular element 4 also significantly reduces the temperature of the outer surface of mouthpiece 2 further upstream of tubular element 4 . Without wishing to be bound by theory, it is believed that the tubular element 4 causes the aerosol to pass closer to the center of the mouthpiece 2, thus reducing heat transfer from the aerosol to the outer surface of the mouthpiece 2. is assumed to be due to

The body of material 6 and the hollow tubular element 4 each define a substantially cylindrical overall outer shape and share a common longitudinal axis. A body of material 6 is wrapped in a first plug wrap 7 . The first plug wrap 7 preferably has a basis weight of less than 50 gsm, more preferably between about 20 gsm and 40 gsm. The first plug wrap 7 preferably has a thickness of 30 μm to 60 μm, more preferably 35 μm to 45 μm. The first plug wrap 7 is a non-porous plug wrap and preferably has a permeability of, for example, less than 100 Coresta units, such as less than 50 Coresta units. However, in other embodiments, the first plug wrap 7 can be a porous plug wrap, eg, having a permeability greater than 200 Coresta units.

In this example, the article 1 has a circumference of about 21 mm (ie the article is super slim). In other examples, the article can be provided in any of the formats described herein and have a perimeter of, for example, 15mm to 25mm.

The circumference of the mouthpiece 2 is substantially the same as the circumference of the aerosol-generating material rod 3, so the transition between these components is smooth. In this example, the circumference of the mouthpiece 2 is approximately 16.8 mm. A piece of tipping paper 5 is wrapped over part of the aerosol-generating material rod 3 over the entire length of the mouthpiece 2 , the tipping paper 5 having adhesive on its inner surface to connect the mouthpiece 2 and the rod 3 . have. In this example, the tipping paper 5 extends 5 mm above the aerosol-generating material rod 3, but alternatively, a 3 mm to 10 mm, or more preferably 4 mm to 6 mm. The tipping paper 5 may have a basis weight greater than that of the plug wrap used in the article 1, for example between 40 gsm and 80 gsm, more preferably between 50 gsm and 70 gsm, in this example 58 gsm. These ranges of basis weights result in a tipping paper that has acceptable tensile strength, yet is flexible enough to wrap the article 1 and adhere to itself along the paper's longitudinal wrap seam. It turned out to be obtained. After being wrapped around the mouthpiece 2, the circumference of the tipping paper 5 is about 21 mm.

The “wall thickness” of the hollow tubular element 4 corresponds to the wall thickness of the tube 4 in radial direction. This can be measured using calipers, for example. Advantageously, the wall thickness is greater than 0.9 mm, more preferably greater than or equal to 1.0 mm. The wall thickness is preferably substantially constant over the wall of the hollow tubular element 4 . However, if the wall thickness is not substantially constant, the wall thickness at any point around the hollow tubular element 4 is preferably greater than 0.9 mm, more preferably 1.0 mm or greater.

The length of hollow tubular element 4 is preferably less than about 20 mm. More preferably, the length of hollow tubular element 4 is less than about 15 mm. Even more preferably, the length of the hollow tubular element 4 is less than about 10 mm. Additionally or alternatively, the length of hollow tubular element 4 is at least about 5 mm. The length of hollow tubular element 4 is preferably at least about 6 mm. In some preferred embodiments, the length of hollow tubular element 4 is from about 5 mm to about 20 mm, more preferably from about 6 mm to about 10 mm, even more preferably from about 6 mm to about 8 mm, most preferably about 6 mm, 7 mm. , or about 8 mm. In this example, the hollow tubular element 4 has a length of 6 mm.

In some embodiments it may be particularly advantageous to use a hollow tubular element 4 having a length of greater than about 10 mm, eg from about 10 mm to about 30 mm or from about 12 mm to about 25 mm. It has been found that the consumer's lips, in some cases, are likely to extend about 12 mm from the mouth end of the article 1 when inhaling an aerosol from the article 1, so that the hollow tubular element 4 is at least 10 mm or at least Having a length of 12 mm means that most of the consumer's lips surround this element 4 .

The density of hollow tubular element 4 is preferably at least about 0.25 grams per cubic centimeter (g/cc), more preferably at least about 0.3 g/cc. The density of hollow tubular element 4 is preferably less than about 0.75 grams per cubic centimeter (g/cc), more preferably less than 0.6 g/cc. In some embodiments, the hollow tubular element 4 has a density between 0.25 and 0.75 g/cc, more preferably between 0.3 and 0.6 g/cc, more preferably between 0.4 g/cc and 0.4 g/cc. 6 g/cc or about 0.5 g/cc. These densities have been found to provide a good balance between the improved stiffness provided by the higher density materials and the lower heat transfer properties of the lower density materials. For the purposes of the present invention, the "density" of the hollow tubular element 4 refers to the density of the filament tows forming the element incorporating any plasticizer. Density can be determined by dividing the total weight of the hollow tubular element 4 by the total volume of the hollow tubular element 4, the total volume being a suitable volume of the hollow tubular element 4 obtained using, for example, calipers. Can be calculated using measurements. If necessary, suitable dimensions can be measured using a microscope.

The filament tows forming the hollow tubular element 4 preferably have a total denier of less than 45,000, more preferably less than 42,000. It has been found that this total denier allows the formation of a tubular element 4 that is not too dense. The total denier is preferably at least 20,000, more preferably at least 25,000. In a preferred embodiment, the filament tows forming the hollow tubular element 4 have a total denier of 25,000 to 45,000, more preferably 35,000 to 45,000. The cross-sectional shape of the tow filaments is preferably "Y" shaped, although other shapes, such as "X" shaped filaments, may be used in other embodiments.

The filament tow forming the hollow tubular element 4 preferably has a denier per filament of greater than three. It has been found that this denier per filament allows the formation of a tubular element 4 that is not too dense. The denier per filament is preferably at least 4, more preferably at least 5. In a preferred embodiment, the filament tow forming the hollow tubular element 4 has a denier per filament of 4-10, more preferably 4-9. In one example, the filament tows forming the hollow tubular element 4 have 8Y40,000 tows formed from cellulose acetate and contain 18% plasticizer, such as triacetin.

The hollow tubular element 4 preferably has an inner diameter of greater than 3.0 mm. A diameter smaller than this may increase the velocity of the aerosol reaching the consumer's mouth through the mouthpiece 2 more than desired, resulting in the aerosol becoming too warm, e.g. A temperature of greater than 45°C is reached. The hollow tubular element 4 more preferably has an inner diameter greater than 3.1 mm, even more preferably greater than 3.5 mm or 3.6 mm. In one embodiment, the inner diameter of hollow tubular element 4 is about 3.9 mm.

The hollow tubular element 4 preferably contains 15% to 22% by weight of plasticizer. For cellulose acetate tow, the plasticizer is preferably triacetin, although other plasticizers such as polyethylene glycol (PEG) can be used. More preferably, tubular element 4 comprises 16% to 20% plasticizer by weight, such as about 17%, about 18%, or about 19% plasticizer.

The pressure drop or differential pressure across the mouthpiece (also called draw resistance), eg, the portion of the article 1 downstream of the aerosol-generating material 3, is preferably less than about _{40 mmH2O} . It has been found that such a pressure drop allows sufficient aerosol containing desirable compounds, such as fragrance compounds, to reach the consumer through the mouthpiece 2 . More preferably, the pressure drop across mouthpiece 2 is less than about 32 _mmH2O . In some embodiments, using a mouthpiece 2 having a pressure drop of less than 31 mm _H2O , such as about 29 mm _H2O , about 28 mm _H2O , or about _27.5 mm H2O results in a particularly improved aerosol. Realized. Alternatively or additionally, the mouthpiece pressure drop may be at least 10 _mmH2O , preferably at least 15 _mmH2O , more preferably at least 20 _mmH2O . In some embodiments, the mouthpiece pressure drop can be between about 15 mm _{H 2} O and 40 mm H ₂ O. These values allow the mouthpiece 2 to decelerate the aerosol as it passes through the mouthpiece 2, so that the time it takes for the temperature of the aerosol to drop by the time it reaches the downstream end 2b of the mouthpiece 2 is can get.

In this example the hollow tubular element 4 is a first hollow tubular element 4 and the mouthpiece comprises a second hollow tubular element 8, also called a cooling element, upstream of the first hollow tubular element 4. include. In this example, the second hollow tubular element 8 is located upstream of the body of material 6 and is adjacent to and in abutting relationship with the body of material 6 . The body of material 6 and the second hollow tubular element 8 each define a substantially cylindrical overall outer shape and share a common longitudinal axis. The second hollow tubular element 8 is formed from a plurality of layers of paper that are wound in parallel and abutted at seams to form the tubular element 8 . In this example, the first and second paper layers are provided as double tubes, but other examples use three, four, or more paper layers to provide triple, quadruple Heavy or larger tubes can also be formed. Other constructions can also be used, such as layers of spirally wound paper, cardboard tubes, tubes formed using paper mache type processes, molded or extruded plastic tubes, and the like. The second hollow tubular element 8 can also be formed using rigid plug wrap and/or tipping paper as the second plug wrap 9 and/or tipping paper 5 described herein, which means that no separate tubular element is required. The rigid plug wrap and/or tipping paper is manufactured to have sufficient stiffness to withstand axial compressive forces and bending moments that may occur during manufacture and use of the article 1 . For example, stiff plug wrap and/or tipping paper can have a basis weight of 70 gsm to 120 gsm, more preferably 80 gsm to 110 gsm. Additionally or alternatively, the rigid plug wrap and/or tipping paper may have a thickness of 80 μm to 200 μm, more preferably 100 μm to 160 μm, or 120 μm to 150 μm. In order to achieve an acceptable overall stiffness level for the second hollow tubular element 8, it is desirable to have values within these ranges for both the second plug wrap 9 and the tipping paper 5. can be

The second hollow tubular element 8 preferably has a wall thickness that can be measured similarly to the first hollow tubular element 4, the wall thickness of the second hollow tubular element 8 being at least about 100 μm up to about 1.5 mm, preferably 100 μm to 1 mm, more preferably 150 μm to 500 μm, or about 300 μm. In this example the second hollow tubular element 8 has a wall thickness of about 290 μm.

In other embodiments, the second hollow tubular element 8 has a wall thickness of at least about 325 μm to about 2 mm, preferably 500 μm to 1.5 mm, more preferably 750 μm to 1 mm. For example, the second hollow tubular element 8 can have a wall thickness of approximately 1 mm.

In some embodiments, the wall thickness of the second hollow tubular element 8 is at least 325 microns, preferably at least 400, 500, 600, 700, 800, 900 or 1000 microns. In some embodiments, the wall thickness of the second hollow tubular element 8 is at least 1250 or 1500 microns.

In some embodiments, the wall thickness of the second hollow tubular element 8 is less than 2000 microns, preferably less than 1500 microns.

Increasing the wall thickness of the second hollow tubular element 8 means that the second hollow tubular element 8 has a greater thermal mass, which means that the second hollow tubular element 8 has a greater thermal mass. It has been found to reduce the temperature of the aerosol passing through 8 and help reduce the surface temperature of the mouthpiece at a point downstream of the second hollow tubular element 8 .

This is because the greater thermal mass of the second hollow tubular element 8 allows the second hollow tubular element 8 to extract more from the aerosol compared to a second hollow tubular element 8 having a thinner wall thickness. It is thought that it is because it becomes possible to absorb much heat. Also, increasing the thickness of the second hollow tubular element 8 allows the aerosol to pass centrally within the mouthpiece, thus transferring heat from the aerosol to the outer portion of the mouthpiece, such as the outer portion of the body of material. becomes less.

In some embodiments, the permeability of the second hollow tubular element 8 is at least 100 Coresta units, preferably at least 150 or 200 Coresta units.

It has been found that the relatively high permeability of the second hollow tubular element 8 increases the amount of heat transferred from the aerosol to the tubular portion and thus reduces the temperature of the aerosol. The permeability of the second hollow tubular element 8 has also been found to increase the amount of moisture transferred from the aerosol to the second hollow tubular element 8, thereby increasing the aerosol in the mouth of the user. It was found that the feeling of the Also, the high permeability of the second hollow tubular element 8 makes it easier to cut the vent holes using a laser, which means that a lower power laser can be used. means.

In some examples, the article 1 can be configured such that there is a separation distance (i.e., minimum distance) between the heater of the non-combustible aerosol delivery device 100 and the second hollow tubular element 8. . This prevents the heat from the heater from damaging the material forming the second hollow tubular element 8 .

The minimum distance between the heater of the non-combustible aerosol delivery device 100 and the second hollow tubular element 8 can be 3 mm or more. In some examples, the minimum distance between the heater of the non-combustible aerosol delivery device 100 and the second hollow tubular element 8 is in the range of 3 mm to 10 mm, such as 3 mm, 4 mm, 5 mm, 6 mm, 7 mm, It can be 8mm, 9mm or 10mm.

The separation distance between the heating element of the non-combustible aerosol-delivery device 100 and the second hollow tubular element 8 can be achieved by adjusting the length of the aerosol-generating material 21, for example.

The length of the second hollow tubular element 8 is preferably less than about 50mm. More preferably, the length of the second hollow tubular element 8 is less than about 40mm. Even more preferably, the length of the second hollow tubular element 8 is less than about 30 mm. Additionally or alternatively, the length of the second hollow tubular element 8 is preferably at least about 10 mm. The length of the second hollow tubular element 8 is preferably at least about 15mm. In some preferred embodiments, the length of the second hollow tubular element 8 is from about 20 mm to about 30 mm, more preferably from about 22 mm to about 28 mm, even more preferably from about 24 mm to about 26 mm, most preferably from about 24 mm to about 26 mm. 25 mm. In this example the length of the second hollow tubular element 8 is 25 mm.

A second hollow tubular element 8 is positioned around and defines a void within the mouthpiece 2 acting as a cooling segment. The void provides a chamber through which the heated volatiles produced by the aerosol-generating material 3 flow. The second hollow tubular element 8 is hollow and provides a chamber for the aerosol deposit that is still sufficiently rigid to withstand axial compressive forces and bending moments that may occur during manufacture and use of the article 1. offer. A second hollow tubular element 8 provides a physical displacement between the aerosol-generating material 3 and the material body 6 . A physical displacement provided by the second hollow tubular element 8 provides a temperature gradient over the length of the second hollow tubular element 8 .

Mouthpiece 2 preferably comprises a cavity with an internal volume greater than 450 mm ³ . It has been found that providing a cavity of at least this volume allows improved aerosol formation. Such a cavity size provides sufficient space within the mouthpiece 2 to allow the heated volatiles to cool, as an aerosol that is too warm may result, and thus should otherwise be possible. allows exposure of the aerosol-generating material 3 to temperatures above the temperature of . In this example the cavity is formed by the second hollow tubular element 8, but in alternative arrangements it could be formed in a different part of the mouthpiece 2. More preferably, the mouthpiece 2 comprises a cavity formed, for example, in the second hollow tubular element 8, which cavity has an internal volume greater than 500 ^mm3 , even more preferably greater than 550 ^mm3 , Allows further refinement of the aerosol. In some examples, the internal cavity includes a volume of about 550 mm ³ to about 750 mm ³ , such as about 600 mm ³ or 700 mm ³ .

The second hollow tubular element 8 has a heated volatile component entering a first upstream end of the second hollow tubular element 8 and a heated volatile component exiting a second downstream end of the second hollow tubular element 8 . can be configured to provide a temperature difference of at least 40 degrees Celsius between The second hollow tubular element 8 has a heated volatile component entering a first upstream end of the second hollow tubular element 8 and a heated volatile component exiting a second downstream end of the second hollow tubular element 8 . and preferably at least 60 degrees Celsius, preferably at least 80 degrees Celsius, more preferably at least 100 degrees Celsius. This temperature difference over the length of the second hollow tubular element 8 protects the temperature-sensitive material body 6 from the high temperature of the aerosol-generating material 3 when heated.

In an alternative article, the second hollow tubular element 8 is replaced by an alternative cooling element, for example an element formed from a body of material that performs the function of cooling the aerosol while allowing it to pass longitudinally. be able to.

In some examples, the aerosol-generating material described herein is the first aerosol-generating material and the second hollow tubular element 8 can include the second aerosol-generating material. A second hollow tubular element 8 may comprise a wall comprising a second aerosol-generating material. For example, on the inner wall of the second hollow tubular element 8 the second aerosol-generating material 4b can be arranged.

The second aerosol-generating material comprises at least one aerosol-forming material and may also comprise at least one aerosol modifier or other sensate material. The aerosol-forming material and/or aerosol-modifying agent can be any aerosol-forming material or aerosol-modifying agent described herein, or a combination thereof.

As the aerosol generated from the aerosol-generating material 3, referred to herein as the first aerosol, is drawn through the second hollow tubular element 8 of the mouthpiece, heat from the first aerosol The aerosol-forming material of the two aerosol-generating materials can be aerosolized to form a second aerosol. The second aerosol can contain a flavorant that can be additional or complementary to the flavor of the first aerosol.

Providing the second hollow tubular element 8 with a second aerosol-generating material can result in the generation of a second aerosol that enhances or complements the scent or appearance of the first aerosol.

In this example, a first hollow tubular element 4, a body of material 6 and a second hollow tubular element 8 are combined using a second plug wrap 9 wrapped around all three sections. be done. The second plug wrap 9 preferably has a basis weight of less than 50 gsm, more preferably between about 20 gsm and 45 gsm. The second plug wrap 9 preferably has a thickness of 30 μm to 60 μm, more preferably 35 μm to 45 μm. The second plug wrap 9 is preferably a non-porous plug wrap having 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 having a permeability greater than, for example, 200 Coresta units.

In this example, the aerosol-generating material 3 is entrained within the web 10 . The web 10 can be, for example, a web of paper or paper-backed foil. In this example, web 10 is substantially impermeable to air. In alternative embodiments, web 10 preferably has a permeability of less than 100 Coresta units, more preferably less than 60 Coresta units. It has been found that low permeability webs, for example having a permeability of less than 100 Coresta units, more preferably less than 60 Coresta units, provide improved aerosol formation within the aerosol-generating material 3 . While not wishing to be bound by theory, it is hypothesized that this is due to reduced loss of aerosol compounds on web 10 . The permeability of the web 10 can be measured according to ISO 2965:2009 for Determining the Air Permeability of Materials Used as Cigarette Paper, Filter Plug Wrap, and Filter Bonding Paper.

In this embodiment, web 10 comprises aluminum foil. Aluminum foil has been found to be particularly effective in promoting aerosol formation within the aerosol-generating material 3 . In this example the aluminum foil has a metal layer with a thickness of about 6 μm. In this example, the aluminum foil has a paper backing. However, in alternative arrangements the aluminum foil may be of other thicknesses, for example between 4 μm and 16 μm thick. The aluminum foil also need not have a paper backing, but can have a backing made from other materials, e.g. to help provide adequate tensile strength to the foil, or have a backing material. It doesn't have to be. Metal layers or foils other than aluminum can also be used. The total thickness of the web is preferably between 20 μm and 60 μm, more preferably between 30 μm and 50 μm, to provide the web with adequate structural integrity and heat transfer properties. The tensile force that can be applied to the web before it breaks can be greater than 3,000 grams force, such as from 3,000 to 10,000 grams force, or from 3,000 to 4,500 grams force. be able to.

In some examples, the web surrounding the aerosol-generating material comprises a citrate, such as sodium citrate and/or potassium citrate. In such examples, the web can have a citrate content of 2% or less, or 1% or less by weight. Reducing the citrate content of the web can help reduce any visible discoloration of the web during use.

The article has a ventilation level of about 75% of the aerosol breathed 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 breathed through the article. These levels of ventilation help slow down the flow of the aerosol drawn through the mouthpiece 2, thus allowing the aerosol to cool sufficiently before reaching the downstream end 2b of the mouthpiece 2. Ventilation is provided directly into mouthpiece 2 of article 1 . In this example, ventilation is provided into the second hollow tubular element 8, which has been found to be particularly beneficial in assisting the aerosol generation process. Ventilation is provided through first and second parallel rows of perforations 12, which in this case are located 17.925 mm and 18.625 mm respectively from the downstream mouth end 2b of the mouthpiece 2. , are formed as laser perforations. These perforations pass through the tipping paper 5 , the second plug wrap 9 and the second hollow tubular element 8 . In alternative embodiments, ventilation may be provided elsewhere into the mouthpiece, eg into the body of material 6 or into the first tubular element 4 .

Alternatively, ventilation can be provided via a single row of perforations, eg laser perforations, into the portion of the article where the hollow tubular element is located. This has been found to result in improved aerosol formation, which is attributed to more uniform airflow through the perforations than for multiple rows of perforations for a given ventilation level. be done.

Aerosol temperature was found to generally increase with decreasing ventilation levels. However, the relationship between aerosol temperature and ventilation level does not appear to be linear, eg, at lower target ventilation levels, variations in ventilation due to manufacturing tolerances have less effect. For example, given a ventilation tolerance of ±15%, if the target ventilation level is 75%, the aerosol temperature may increase by about 6° C. at the lower ventilation limit (60% ventilation). However, if the target ventilation level is 60%, the aerosol temperature increases only about 3.5° C. at the lower ventilation limit (45% ventilation). Accordingly, the target ventilation level of the article may be in the range of 40%-70%, such as 45%-65%. The average ventilation level of at least 20 articles can be 40% to 70%, such as 45% to 70% or 51% to 59%.

In some examples, the web 10 surrounding the aerosol-generating material has a high level of permeability, eg, greater than about 1000 Coresta units, or about 1500 Coresta units, or greater than about 2000 Coresta units. The permeability of the web 10 can be measured according to ISO 2965:2009 for Determining the Air Permeability of Materials Used as Cigarette Paper, Filter Plug Wrap, and Filter Bonding Paper.

The web 10 may be made of a high intrinsic permeability level material, an inherently porous material, or any intrinsic permeability in which the ultimate permeability level is achieved by providing the web 10 with a permeable section or areas. It can be formed from a material having levels. Providing a permeable web 10 provides a pathway for air to enter the smoking article. The web can be provided with permeability such that the amount of air entering the article through the rod of aerosol-generating material is relatively greater than the amount of air entering the article through the ventilation zone 12 in the mouthpiece. . Articles with this configuration can produce a more flavorful aerosol and can be more satisfying to the user.

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

The aerosol-generating material 3 is preferably provided as a cylindrical rod of aerosol-generating material. Regardless of the aerosol-generating material formation, the aerosol-generating material 3 preferably has a length of about 10 mm to 100 mm. In some embodiments, the length of the aerosol-generating material is preferably within the range of about 25mm-50mm, more preferably within the range of about 30mm-45mm, still more preferably within the range of about 30mm-40mm.

The volume of aerosol-generating material 3 provided can vary from about 200 mm ³ to about 4300 mm ³ , preferably from about 500 mm ³ to 1500 mm ³ , more preferably from about 1000 mm ³ to about 1300 mm ³ . By providing these volumes of aerosol-generating material ^{, e.g.} Advantageously, it has been shown to achieve an aerosol.

The mass of the aerosol-generating material 3 provided can be greater than 200 mg, for example about 200 mg to 400 mg, preferably about 230 mg to 360 mg, more preferably about 250 mg to 360 mg. Advantageously, it has been found that providing a greater mass of aerosol-generating material results in improved sensory performance when compared to aerosols generated from lesser masses of tobacco material.

The aerosol-generating material or substrate is preferably formed from the tobacco materials described herein that contain tobacco components.

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

Aerosol-generating material 3 may comprise reconstituted tobacco material having a density of less than about 700 milligrams per cubic centimeter (mg/cc). Such tobacco materials have been found to be particularly effective in providing an aerosol-generating material that can be rapidly heated to release an aerosol when compared to higher density materials. For example, the inventors tested the properties of various aerosol-generating materials when heated, such as bandcast reconstituted tobacco materials and paper reconstituted tobacco materials. For each given aerosol-generating material, a certain zero heat flow temperature is found to exist, below which, while heat is being applied to the material, the net heat flow is endothermic, In other words, more heat enters the material than it leaves, and above this zero heat flow temperature, the net heat flow is accompanied by heat generation, in other words, more heat leaves the material than it enters. Materials with densities less than 700 mg/cc had lower zero heat flow temperatures. Having a lower zero heat flow temperature has a beneficial impact on the time it takes for the aerosol to initially release from the aerosol-generating material, since most of the heat flow exiting the material is due to aerosol formation. For example, an aerosol-generating material with a density of less than 700 mg/cc will have a zero heat flow temperature of less than 164°C compared to a material with a density greater than 700 mg/cc will have a zero heat flow temperature of greater than 164°C. There was found.

The density of the aerosol-forming material also affects the rate at which heat conducts through the material, with lower densities, e.g. can be released.

The aerosol-generating material 3 preferably comprises recycled tobacco material, such as recycled paper tobacco material, having a density of less than about 700 mg/cc. More preferably, aerosol-generating material 3 comprises reconstituted tobacco material having a density of less than about 600 mg/cc. Alternatively or additionally, the aerosol-generating material 3 preferably comprises reconstituted tobacco material having a density of at least 350 mg/cc, which is believed to allow a sufficient amount of heat transfer in the material.

The tobacco material can be provided in the form of cut rag tobacco. The cut rag tobacco can have a cut width of at least 15 cuts per inch (about 5.9 cuts per cm, equivalent to a cut width of about 1.7 mm). The cut rag tobacco preferably has at least 18 cuts per inch (about 7.1 cuts per cm, equivalent to a cut width of about 1.4 mm), more preferably at least 20 cuts per inch (about 7.9 cuts per cm, (equivalent to a step width of about 1.27 mm). In one example, the cut rag tobacco has a cut width of 22 cuts per inch (about 8.7 cuts per cm, equivalent to a cut width of about 1.15 mm). The cut rag tobacco preferably has a cut width of no more than 40 cuts per inch (about 15.7 cuts per cm, equivalent to a cut width of about 0.64 mm). A step size 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 results in a surface area to volume ratio, especially when heated, as well as the overall substrate 3 It has been found that a preferred tobacco material is obtained with respect to reasonable density and pressure drop. Cut rag tobacco can be formed from a mixture of forms of tobacco material, such as a mixture of one or more of recycled tobacco, leaf tobacco, extruded tobacco, and bandcast tobacco. Preferably, the tobacco material comprises recycled tobacco or a mixture of recycled tobacco and leaf tobacco.

In the tobacco material described herein, the tobacco material can contain a filler component. The filler component is generally a non-tobacco component, ie, a component that does not contain tobacco-derived materials. The filler component can be wood fibers or pulp or non-tobacco fibers such as wheat fibers. The filler component can also be an inorganic material such as chalk, perlite, vermiculite, diatomaceous earth, colloidal silica, magnesium oxide, magnesium sulfate, magnesium carbonate, and the like. The filler component can also be a non-tobacco cast material or non-tobacco extruded material. The filler component can be present in an amount of 0-20% by weight of the tobacco material, or in an amount of 1-10% by weight of the composition. In some embodiments, no filler component is present.

In the tobacco material described herein, the tobacco material contains an aerosol-forming material. In this context, an "aerosol-forming material" is an agent that facilitates the production of an aerosol. Aerosol-forming materials can facilitate the formation of an aerosol by facilitating initial vaporization and/or condensation of a gas into an inhalable solid and/or liquid aerosol. In some embodiments, the aerosol-forming material can improve the delivery of perfume from the aerosol-generating material. Generally, any suitable aerosol-forming material or agent can be included within the aerosol-generating materials of the present invention, including those described herein. Other suitable aerosol-forming 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, triethyl citrate, or myristic acid, including ethyl myristate and isopropyl myristate, as well as methyl stearate, dimethyl dodecanedioate, and aliphatic carboxylic acid esters such as dimethyl tetradecanedioate. In some embodiments, the aerosol-forming material can be glycerol, propylene glycol, or a mixture of glycerol and propylene glycol. Glycerol may be present in an amount of 10-20% by weight of the tobacco material, such as 13-16% 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 0.1-0.3% by weight of the composition.

The aerosol-forming material can 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-forming material can be added separately to the tobacco material. In either case, the total amount of aerosol-forming material within the tobacco material can be as defined herein.

The tobacco material can contain 10% to 90% tobacco by weight, and the aerosol-forming material is provided in an amount up to about 10% by weight of the leaf tobacco. It has been found that it can be added at a weight percentage greater than another component of the tobacco material, such as reconstituted tobacco material, to achieve an overall level of aerosol-forming material of 10% to 20% by weight of the tobacco material. is advantageous.

The tobacco material described herein contains nicotine. The nicotine content is between 0.5 and 1.75% by weight of the tobacco material, and can be, for example, between 0.8 and 1.5% by weight of the tobacco material. Additionally or alternatively, the tobacco material contains 10% to 90% tobacco by weight and has a nicotine content of greater than 1.5% by weight of the tobacco. Using tobacco leaves with nicotine content higher than 1.5% in combination with a lesser nicotine matrix, such as recycled paper tobacco, used recycled paper tobacco alone while still having adequate nicotine levels. Advantageously, it has been found to provide a tobacco material with better perceptual performance. Tobacco leaves, such as cut rag tobacco, can have a nicotine content of, for example, 1.5% to 5% by weight of the tobacco leaf.

The tobacco materials described herein may contain an aerosol modifier such as any of the flavoring agents described herein. In one embodiment, the tobacco material contains menthol to form a mentholated article. The tobacco material may contain 3 mg to 20 mg menthol, preferably 5 mg to 18 mg, more preferably 8 mg to 16 mg menthol. In this example, the tobacco material contains 16 mg of menthol. The tobacco material may contain from 2% to 8% by weight menthol, preferably from 3% to 7% by weight menthol, more preferably from 4% to 5.5% by weight menthol. In one embodiment, the tobacco material comprises 4.7% by weight menthol. Such high levels of menthol loading can be achieved using a high proportion of reconstituted tobacco material, for example greater than 50% by weight of the tobacco material. Alternatively or additionally, the use of large amounts of aerosol-generating material, such as tobacco material, can increase the menthol loading levels that can be achieved, for example greater than about 500 mm ³ , or preferably about 1000 mm ³ . Aerosol-generating materials such as more tobacco materials are used.

In the compositions described herein, when amounts are given in weight percent, for the avoidance of doubt this refers to dry basis weight unless specifically indicated to the contrary. Therefore, for the purposes of weight percent determination, any water that may be present in the tobacco material or any component thereof is completely ignored. The moisture content of the tobacco materials described herein can vary and can be, for example, 5-15% by weight. The moisture content of the tobacco materials described herein may vary according to, for example, the temperature, pressure and humidity conditions under which the composition is maintained. Moisture content can be determined by Karl Fischer analysis, as known to those skilled in the art. On the other hand, for the avoidance of doubt, all ingredients other than water are included in the weight of the tobacco material, even when the aerosol-forming material is a liquid phase ingredient such as glycerol or propylene glycol. However, when the aerosol-forming material is provided within the tobacco component of the tobacco material or within the filler component (if present) of the tobacco material, instead of or in addition to being separately added to the tobacco material, the aerosol-forming material is included in the weight of the "aerosol-forming material" in weight percent as defined herein, rather than being included in the weight of the tobacco component or filler component. All other ingredients present in the tobacco component are included in the weight of the tobacco component, even if derived from non-tobacco (eg, non-tobacco fibers in the case of recycled tobacco).

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

Recycled tobacco is present within the tobacco component of the tobacco materials described herein in an amount of 10% to 100% by weight of the tobacco component. In embodiments, the recycled tobacco is present in an amount of 10% to 80% or 20% to 70% by weight of the tobacco component. In a further embodiment, the tobacco component consists essentially of recycled tobacco or consists of recycled tobacco. In preferred embodiments, the leaf tobacco is present within the tobacco component of the tobacco material in an amount of at least 10% by weight of the tobacco component. For example, leaf tobacco can be present in an amount of at least 10% by weight of the tobacco component, with the remainder of the tobacco component being in another form such as paper reconstituted tobacco, bandcast reconstituted tobacco, or bandcast reconstituted tobacco and tobacco granules. tobacco combinations.

Recycled tobacco refers to tobacco material formed by a process in which tobacco raw materials are extracted with a solvent to give an extract of residues containing solubles and fibrous material, and then the extract (usually after concentration and optionally After further processing) is recombined with the fibrous material from the residue by depositing the extract on the fibrous material (usually after purification of the fibrous material and optionally with a portion of the non-tobacco fibers added). The recombination process is similar to the papermaking process.

Recycled tobacco can be any type of recycled tobacco known in the art. In certain embodiments, recycled tobacco is made from raw materials including one or more of tobacco strips, tobacco stems, and whole leaf tobacco. In a further embodiment, recycled tobacco is made from raw materials consisting of tobacco strips and/or whole leaf tobacco and tobacco stems. However, shreds, granules, and shells may alternatively or additionally be used in raw materials in other embodiments.

Recycled tobacco for use in the tobacco materials described herein can be prepared by methods known to those skilled in the art for preparing recycled tobacco.

In the example described above, the mouthpiece 2 comprises a single body of material 6 . In other examples, the mouthpiece of FIG. 1a can include multiple bodies of material. Mouthpiece 2 may comprise a cavity between the bodies of material.

In some examples, the mouthpiece 2 downstream of the aerosol-generating material 3 can comprise a web of paper, such as a first plug wrap 7 or a second plug wrap 9 or a tip paper 5, the web of which is herein referred to as aerosol modifiers described in . The aerosol modifier can be placed on the inwardly or outwardly facing surface of the mouthpiece web. For example, an aerosol modifier can be provided on the area of the web that contacts the lips of the consumer during use, such as the outwardly facing surface of tipping paper 5 . By placing the aerosol modifier on the outwardly facing surface of the mouthpiece web, the aerosol modifier can be delivered to the consumer's lips during use. Delivery of the aerosol modifier to the consumer's lips during use of the article can modify the organoleptic properties (e.g., taste) of the aerosol produced by the aerosol-generating substrate 3, or otherwise alter the A perceptual experience can be provided to the consumer. For example, an aerosol modifier can impart a scent to the aerosol produced by the aerosol-generating substrate 3 . The aerosol modifier can be at least partially water soluble so that it is delivered to the user by the consumer's saliva. The aerosol modifier can be volatilized by heat generated by the aerosol delivery system. This can facilitate the transfer of the aerosol modifier to the aerosol produced by the aerosol-generating substrate 3 . Suitable sensate materials can be perfumes, sucralose, or cooling agents such as menthol, as described herein.

A non-combustible aerosol delivery device is used to heat the aerosol-generating material 3 of the article 1 described herein. The non-combustible aerosol delivery device preferably comprises a coil as it has been found to allow improved heat transfer to the article 1 compared to other configurations.

In some examples, the coil is configured to cause heating of the at least one electrically conductive heating element during use, thus allowing thermal energy to be conducted from the at least one electrically conductive heating element to the aerosol-generating material, thereby generating an aerosol. Causes heating of the product material.

In some examples, the coil is configured to generate a varying magnetic field that penetrates the at least one heating element during use, thereby causing inductive heating and/or magnetic hysteresis heating of the at least one heating element. In such a configuration, the or each heating element may be referred to as a "susceptor," as defined herein. Coils configured to produce a varying magnetic field that penetrates at least one electrically conductive heating element during use, thereby causing induction heating of the at least one electrically conductive heating element, are referred to as "induction coils" or "inductor coils." be able to.

The device may include a heating element(s), such as an electrically conductive heating element(s), wherein the heating element(s) are: It is preferably positionable or positionable relative to the coil. The heating element(s) may be in a fixed position relative to the coil. Alternatively, at least one heating element, such as at least one electrically conductive heating element, may be included within the article 1 for insertion into the heating section of the device, the article 1 also comprising the aerosol-generating material 3. and is removable from the heating section after use. Alternatively, both the device and such article 1 may comprise at least one respective heating element, for example at least one electrically conductive heating element, the coil heating the device and such article 1 when the article is in the heating zone. It may be for causing heating of the heating element(s) of each of the articles.

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

In some examples, the device comprises an electrically conductive heating element that at least partially surrounds the heating section, and the coil is a helical coil that surrounds 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 coils allows non-combustible aerosol delivery devices to reach operating temperature more quickly than non-coil aerosol delivery devices. For example, a non-combustible aerosol delivery device comprising a coil as described above reaches operating temperature in less than 30 seconds, more preferably less than 25 seconds from initiation of the device heating program, so as to be able to provide the first puff. can do. In some examples, the device can reach operating temperature in about 20 seconds from the start of the device heating program.

It has been found that using the coils described herein in the device to cause heating of the aerosol-generating material enhances the resulting aerosol. For example, consumers find that aerosols produced by coil-containing devices such as those described herein are more desirable in factory-made cigarette (FMC) products than aerosols produced by other non-combustible aerosol delivery systems. It is reported that it is intuitively close to what is generated. While not wishing to be bound by theory, this suggests that the time to reach the required heating temperature is reduced when the coil is used, the heating achievable when the coil is used. higher temperatures and/or the coils allow such systems to heat relatively large volumes of aerosol-generating material simultaneously, so that the aerosol temperature is similar to the FMC aerosol temperature. It is assumed that In the FMC product, the burning coal produces a hot aerosol that heats the tobacco within the tobacco rod behind the coal as the aerosol is drawn through the rod. This hot aerosol is understood to release flavor compounds from the tobacco within the rod behind the burning coal. A device comprising the coils described herein is also believed to be capable of heating an aerosol-generating material, such as a tobacco material described herein, to release flavoring compounds, such that the aerosol is Reported to be more similar to FMC aerosol.

Properties of FMC products can be more closely resembled by using an aerosol delivery system comprising a coil as described herein, for example 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. It can be possible to generate aerosols from aerosol-generating materials that have specific properties that are believed to be desirable. For example, when using an induction heater to heat an aerosol-generating material containing nicotine heated to at least 250° C. under an air flow of at least 1.50 L/m during this period of time over a period of 2 seconds, the following properties is observed.

At least 10 μg of nicotine is aerosolized from the aerosol-generating material.

The weight ratio of the generated aerosol of the aerosol-forming material to nicotine will be at least about 2.5:1, preferably at least 8.5:1.

At least 100 μg of aerosol-forming material can be aerosolized from the aerosol-generating material.

The average particle or droplet size within the generated aerosol is less than about 1000 nm.

Aerosol density is at least 0.1 μg/cc.

In some cases, at least 10 μg nicotine, preferably at least 30 μg or 40 μg nicotine, is aerosolized from the aerosol-generating material under an air flow of at least 1.50 L/m over a period of time. In some cases, less than about 200 μg, preferably 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 over a period of time.

In some cases, at least 100 μg of the aerosol-forming material, preferably at least 200 μg, 500 μg, or 1 mg of the aerosol-forming material is aerosolized from the aerosol-forming material under an air flow of at least 1.50 L/m over a period of time. Suitably, the aerosol-forming 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 component of an aerosol (ie, components suspended in a gas). When the aerosol contains suspended liquid droplets and suspended solid particles, the term refers to the average size of all the components combined.

In some cases, the average particle or droplet size within the generated aerosol can 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 can be greater than about 25 nm, 50 nm, or 100 nm.

In some cases, the aerosol density produced during the 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-combustible aerosol delivery device is preferably arranged to heat the aerosol-generating material 3 of the article 1 to a maximum temperature of at least 160°C. The non-combustible aerosol-delivery device heats the aerosol-forming material 3 of the article 1 to at least about 200°C, or at least about 220°C, or at least about 240°C, more preferably at least about 240°C, at least once during the heating process by the non-combustible aerosol-delivery device. It is preferably arranged to heat up to a maximum temperature of 270°C.

By using an aerosol delivery system comprising a coil as described herein, for example 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, the aerosol is It can enable the generation of aerosols from the aerosol-generating material in the article 1 described herein that has a higher temperature when leaving the edge than previous devices, which is considered closer to the FMC product. It can contribute to generation. For example, the maximum aerosol temperature measured at the mouth end of the article 1 can preferably be greater than 50°C, more preferably greater than 55°C, even more preferably greater than 56°C or 57°C. Additionally or alternatively, the maximum aerosol temperature measured at the mouth end of the article 1 may be less than 62°C, more preferably less than 60°C, more preferably less than 59°C. In some embodiments, the maximum aerosol temperature measured at the mouth end of the article 1 can preferably be between 50°C and 62°C, more preferably between 56°C and 60°C.

FIG. 2 illustrates an example non-combustible aerosol delivery device 100 for generating an aerosol from an aerosol-generating medium/material, such as the aerosol-generating material 3 of the article 1 described herein. In overview, the device 100 is used to heat a replaceable article 110 comprising an aerosol-generating medium, such as the article 1 described herein, to produce an aerosol or other respirable material that is inhaled by a user of the device 100. A medium can be generated. Together, device 100 and replaceable item 110 form a system.

Device 100 comprises a housing 102 (in the form of an outer cover) that surrounds and encloses the various components of device 100 . Device 100 has an opening 104 at one end through which an item 110 can be inserted for heating by the heating assembly. In use, the article 110 can be fully or partially inserted into the heating assembly and heated within the heating assembly by one or more components of the heater assembly.

The device 100 of this example includes a first end member 106 that is tilted relative to the first end member 106 to close the opening 104 when the item 110 is not in place. A movable lid 108 is provided. Although lid 108 is shown in an open configuration in FIG. 2, lid 108 can also be moved to a closed configuration. For example, the user can slide lid 108 in the direction of arrow "B".

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

Device 100 can also include electrical components such as sockets/ports 114 that can receive cables to charge the battery of device 100 . For example, socket 114 can be a charging port, such as a USB charging port.

FIG. 3 shows device 100 of FIG. 2 with outer cover 102 removed and article 110 absent. Device 100 defines a longitudinal axis 134 .

As shown in FIG. 3, the first end member 106 is positioned at one end of the device 100 and the second end member 116 is positioned at the opposite end of the device 100 . First end member 106 and second end member 116 together at least partially define an end surface of device 100 . For example, the bottom surface of second end member 116 at least partially defines the bottom surface of device 100 . The edge of the outer cover 102 can also define a portion of the end face. 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 can be referred to as the proximal end (or oral end) of device 100, as it will be closest to the user's mouth in use. In use, a user inserts article 110 into opening 104 and operates user controls 112 to initiate heating of the aerosol-generating material and inhale the aerosol generated within the device. This causes the aerosol to flow along the flow path through device 100 toward the proximal end of device 100 .

The other end of the device furthest from opening 104 can be referred to as the distal end of device 100, as it is the end furthest from the user's mouth in use. As the user inhales the aerosol generated within the device, the aerosol flows away from the distal end of device 100 .

Device 100 further comprises 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 (such as lithium-ion batteries), nickel batteries (such as nickel-cadmium batteries), and alkaline batteries. A battery is electrically coupled to the heating assembly to provide power for heating the aerosol-generating material when required under the control of a controller (not shown). In this example, the batteries are connected to a central support 120, which holds the batteries 118 in place.

The device further comprises at least one electronics module 122 . Electronic module 122 may comprise, 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 for electrically connecting the various electronic components of device 100 together. For example, battery terminals can be electrically connected to PCB 122 so that power can be distributed throughout device 100 . Socket 114 may also be electrically coupled to the battery via electrical tracks.

In exemplary device 100, the heating assembly is an induction heating assembly and includes various components for heating the aerosol-generating material of article 110 by an induction heating process. Induction heating is the process of heating an electrical conductor (such as a susceptor) by electromagnetic induction. An induction heating assembly may comprise an inductive element, such as one or more inductor coils, and a device for passing a varying current, such as alternating current, through the inductive element. A varying current in the inductive element produces a varying magnetic field. The fluctuating magnetic field penetrates the susceptor, which is suitably positioned with respect to the inductive element, and creates eddy currents in the susceptor. The susceptor has an electrical resistance to eddy currents, and therefore the flow of eddy currents against this resistance causes the susceptor to be heated by Joule heating. If the susceptor comprises a ferromagnetic material such as iron, nickel, or cobalt, the magnetic hysteresis losses in the susceptor, i.e. the varying orientation of the magnetic dipoles in the magnetic material as a result of alignment with the varying magnetic field, It can also generate heat. Induction heating produces heat within the susceptor, which allows for rapid heating, as compared to heating by conduction, for example. Moreover, no physical contact between the induction heater and the susceptor is required, allowing more freedom with respect to construction and application.

The induction heating assembly of exemplary device 100 comprises a susceptor structure 132 (referred to herein as the “susceptor”), first inductor coil 124 and second inductor coil 126 . First inductor coil 124 and second inductor coil 126 are made from an electrically conductive material. In this example, the first inductor coil 124 and the second inductor coil 126 are made from litz wire/cable that is helically wound to provide the helical inductor coils 124,126. Litz wire includes a plurality of individual wires, which are individually insulated and which are twisted together to form a single wire. Litz wire is designed to reduce skin effect losses in conductors. In the exemplary device 100, the first inductor coil 124 and the second inductor coil 126 are made from copper litz wire with a square cross-section. In other examples, litz wires can also have cross-sections of other shapes, such as circular.

First inductor coil 124 is configured to generate a first varying magnetic field for heating a first section of susceptor 132 and second inductor coil 126 heats a second section of susceptor 132 . configured to generate a second varying magnetic field for In this example, the first inductor coil 124 is adjacent to the second inductor coil 126 in the direction of the longitudinal axis 134 of the device 100 (i.e., the first inductor coil 124 and the second inductor coil 126 are not overlapping). Susceptor structure 132 may comprise a single susceptor or two or more separate susceptors. Ends 130 of first inductor coil 124 and second inductor coil 126 may be connected to PCB 122 .

It will be appreciated that in some examples, the first inductor coil 124 and the second inductor coil 126 can have at least one characteristic that differs from each other. For example, first inductor coil 124 can have at least one characteristic that is different than second inductor coil 126 . More specifically, in one example, first inductor coil 124 can have a different inductance value than second inductor coil 126 . In FIG. 3, the first inductor coil 124 and the second inductor coil 126 are of different lengths, so the first inductor coil 124 is wound on a smaller section of the susceptor 132 than the second inductor coil 126. . Accordingly, the first inductor coil 124 can include a different number of turns than the second inductor coil 126 (assuming the spacing between individual turns is substantially the same). In yet another example, first inductor coil 124 can be made from a different material than second inductor coil 126 . In some examples, the first inductor coil 124 and the second inductor coil 126 can be substantially identical.

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 active at different times. For example, first inductor coil 124 may operate first to heat a first section/portion of article 110 , and later second inductor coil 126 may operate to heat a second section of article 110 . / part can be heated. Winding the coils in opposite directions helps reduce currents induced in inactive coils when used with certain types of control circuits. In FIG. 3, the first inductor coil 124 is a right-handed helix and the second inductor coil 126 is a left-handed helix. However, in other embodiments, the inductor coils 124, 126 can be wound in the same direction, or the first inductor coil 124 can be a left-hand helix and the second inductor coil 126 can be a right-hand helix. can also be

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 can be inserted into susceptor 132 . In this example, the susceptor 120 is tubular and has a circular cross-section.

Susceptor 132 can be made from one or more materials. Susceptor 132 preferably comprises carbon steel and has a nickel or cobalt coating.

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. be. For example, a first section of the susceptor 132 (heated by the first inductor coil 124) may comprise a first material, and a second section of the susceptor 132 heated by the second inductor coil 126. can include a second, different material. In another example, the first section can include first and second materials, which heat differently based on the operation of the first inductor coil 124. be able to. The first and second materials can be adjacent along an axis defined by the susceptor 132 or can form different layers within the susceptor 132 . Similarly, the second section can include third and fourth materials, which can heat differently based on the operation of the second inductor coil 126. can. The third and fourth materials can be adjacent along an axis defined by susceptor 132 or can form different layers within susceptor 132 . For example, the third material can be the same as the first material and the fourth material can be the same as the second material. Alternatively, each of these materials may be different. The susceptor can comprise carbon steel or aluminum, for example.

Device 100 of FIG. 3 further comprises insulating member 128 , which may be generally tubular and may at least partially surround susceptor 132 . Insulating member 128 may be constructed from any insulating material, such as, for example, plastic. In this particular example, the insulating member is constructed from polyetheretherketone (PEEK). Insulating member 128 can help insulate the various components of device 100 from heat generated within susceptor 132 .

Insulation member 128 may also fully or partially support first inductor coil 124 and second inductor coil 126 . For example, as shown in FIG. 3, a first inductor coil 124 and a second inductor coil 126 are disposed about insulating member 128 and contact a radially outwardly facing surface of insulating member 128 . In some examples, insulating member 128 does not abut first inductor coil 124 and second inductor coil 126 . For example, a slight gap may exist between the outer surface of insulating member 128 and the inner surfaces of first inductor coil 124 and second inductor coil 126 .

In a specific example, susceptor 132 , insulating member 128 , and first inductor coil 124 and second inductor coil 126 are coaxial about a central longitudinal axis of susceptor 132 .

FIG. 4 shows a partial cross-sectional side view of device 100 . In this example, an outer cover 102 is present. The rectangular cross-sectional shapes of the first inductor coil 124 and the second inductor coil 126 can be seen more clearly.

Device 100 further comprises a support 136 for engaging one end of susceptor 132 to hold susceptor 132 in place. A support 136 is connected to the second end member 116 .

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

Device 100 further comprises a second lid/cap 140 and spring 142 located at the distal end of device 100 . Spring 142 allows second lid 140 to open to provide access to susceptor 132 . A user can open the second lid 140 to clean the susceptor 132 and/or the support 136 .

Device 100 further comprises an expansion chamber 144 that extends away from the proximal end of susceptor 132 and toward opening 104 of the device. A retaining clip 146 is at least partially disposed within expansion chamber 144 to abut and retain item 110 when received within device 100 . Expansion chamber 144 is connected to end member 106 .

FIG. 5 is an exploded view of the device 100 of FIG. 4 with the outer cover 102 omitted.

FIG. 6A shows a cross-sectional view of a portion of device 100 of FIG. FIG. 6B shows an enlarged view of a region of FIG. 6A. 6A and 6B show an article 110 received within a susceptor 132 , the article 110 being sized such that the outer surface of the article 110 abuts the inner surface of the susceptor 132 . This ensures that the heating is most efficient. The article 110 of this example comprises an aerosol-generating material 110a. Aerosol-generating material 110 a is disposed within susceptor 132 . Article 110 may also include other components such as filters, packaging materials, and/or cooling structures.

FIG. 6B shows that the outer surface of susceptor 132 is spaced from the inner surfaces of inductor coils 124 , 126 by a distance 150 measured in a direction perpendicular to longitudinal axis 158 of susceptor 132 . In one particular example, distance 150 is about 3-4 mm, about 3-3.5 mm, or about 3.25 mm.

FIG. 6B further illustrates that the outer surface of insulating member 128 is spaced from the inner surfaces of inductor coils 124 , 126 by a distance 152 measured in a direction perpendicular to longitudinal axis 158 of susceptor 132 . In one particular example, distance 152 is approximately 0.05 mm. In another example, distance 152 is substantially 0 mm so inductor coils 124 , 126 are in abutting contact with 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, the susceptor 132 has a length of approximately 40 mm to 60 mm, approximately 40 mm to 45 mm, or approximately 44.5 mm.

In one example, 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 article 1 described herein can be inserted into a non-flammable aerosol delivery device such as the device 100 described with reference to Figures 3-7. At least a portion of the mouthpiece 2 of the article 1 protrudes from the non-flammable aerosol delivery device 100 and can be placed in the user's mouth. Aerosol is generated by heating the aerosol-generating material 3 using device 100 . The aerosol generated by the aerosol-generating material 3 reaches the user's mouth through the mouthpiece 2 .

When the article 1 is inserted into the device 100, the minimum distance between one or more components of the heater assembly and the tubular element of the article 1 is in the range of 3 mm to 10 mm, such as 3 mm, 4 mm, 5 mm, It can be 6mm, 7mm, 8mm, 9mm or 10mm.

The article 1 described herein has particular advantages when used with a non-combustible aerosol delivery device, such as the device 100 described with reference to Figures 2-6. In particular, it has surprisingly been found that the first tubular element 4 formed from filament tows significantly influences the temperature of the outer surface of the mouthpiece 2 of the article 1 . For example, if a hollow tubular element 4 formed from filament tows is wound into an outer web, eg tipping paper 5, the outer surface of the outer web at a longitudinal position corresponding to the location of the hollow tubular element 4 is in use. It has been found that a maximum temperature of less than 42°C, preferably less than 40°C, more preferably less than 38°C or less than 36°C is reached at a minimum.

Table 3.0 below lists the article described herein with reference to FIGS. 1a and 1b when heated using the device 100 described herein with reference to FIGS. 2-6. 1 shows the temperature of the outer surface. First, second and third temperature measurement probes were used at corresponding first, second and third positions along mouthpiece 2 of article 1 . The first position (designated Position 1 in Table 2.0) is 4 mm from the downstream end 2b of the mouthpiece 2 and the second position (designated Position 2 in Table 2.0) 8 mm from the downstream end 2b of the mouthpiece 2, and a third position (designated position 3 in Table 2.0) is 12 mm from the downstream end 2b of the mouthpiece 2.

Thus, the first position is on the outer surface of the portion of the mouthpiece 2 on which the first tubular element 4 is arranged, and the second and third positions are on the outer surface of the mouthpiece 2 on which the body of material 6 is arranged. on the outer surface of the part.

The control article was tested in comparison to the filament tow tubular element 4 described herein, replacing the filament tow tubular element 4 with the same structure as the second hollow tubular element 8 described herein. A well-known spiral wound paper tube of 6 mm length was used instead of 25 mm.

Since the fifth puff typically peaks the temperature and begins to decline, the test was performed on the first five puffs on the article so that an approximate maximum temperature could be observed. Each sample was tested 5 times and the temperature provided is the average of these 5 tests. Using standard test equipment, the well-known Health Canada smoking regime was applied (55 ml smoke volume applied over 2 seconds every 30 seconds).

As shown in the table below, surprisingly, using a tubular element 4 formed from filament tows, compared to the control article at all puffs and all test positions in the mouthpiece 2, the It was found that the outer surface temperature decreased. The tubular element 4 formed from filament tow was particularly effective in reducing the temperature at the first probe location where the consumer's lips are placed when using the article 1 . In particular, the temperature of the outer surface of the mouthpiece 2 at the first probe position decreased by more than 7°C in the first three puffs and by more than 5°C in the fourth and fifth puffs.

FIG. 7 illustrates a method of manufacturing the articles described herein.

At step S101, at least two additional release components are received within a delivery mechanism configured to dose the additional release components into the fibrous tow material stream at predetermined longitudinal intervals. In this example, the fibrous tow material comprises a cellulose acetate tow and the additional release components comprise breakable capsules 11a, 11b. In this example, the delivery mechanism comprises a horizontally oriented disc assembly for receiving the breakable capsules and a vertically oriented rotating delivery wheel for delivering the capsules to the fibrous tow stream.

Known machines for inserting capsules into fibrous tow material streams can be modified to achieve the insertion of at least two breakable capsules of the present invention.

At step S102, at least two additional release components are administered from the delivery mechanism to the fibrous tow material stream. At step S103, the fibrous tow, now containing at least two additional release components, is passed through the upholstery and wound onto paper to form a rod. In this case, the rolled paper includes an oil-resistant plugwrap 7 .

At step S104, the rod is cut to form a mouthpiece rod containing at least two additional release components. In optional further steps, the formed mouthpiece rod can be combined with additional mouthpiece segments and/or aerosol-generating material sources to form an article.

The various embodiments described herein are presented only to assist in understanding and teaching the claimed features. These embodiments are provided only as a representative sample of embodiments and are not exhaustive and/or exclusive. None of the advantages, embodiments, examples, functions, features, structures, and/or other aspects described herein should be considered limitations on the equivalents of the claims and It is to be understood that other embodiments may be utilized and modifications may be made without departing from the scope of the present invention. Various embodiments of the invention may include any suitable combination of the disclosed elements, components, features, parts, steps, means, etc. other than those specifically described herein, and such Suitably it can consist of a combination or consist essentially of such a combination. Additionally, the present disclosure may include other inventions not claimed herein but which may be claimed in the future.

Claims (32)

A component for an article for use in an aerosol delivery system comprising a fibrous material body, said fibrous material body embedded within said fibrous material body first and second additions said first and second additional release components each having a maximum diameter of from about 1.5mm to about 2.5mm, said first and second additional release components are separated by a distance of less than about 2.5 mm. 3. The component of claim 1, wherein the first and second additional release components are separated by a distance of less than about 2.0 mm, less than about 1.5 mm, or less than about 1.0 mm. . The longitudinal separation between the centers of said first and second additional release components is at least about 0.75 mm, at least about 1.0 mm, at least about 1.5 mm, at least about 2.0 mm, or at least about 3. A component according to claim 1 or 2, which is 2.5 mm. 4. A component according to claim 1, 2 or 3, wherein the first and second additional release components are each arranged along the longitudinal axis of the component. 4. The component of claim 1, 2, or 3, wherein at least one of the first and second additional release components has a center offset from the longitudinal axis of the component by at least about 2 mm. the maximum separation distance between the centers of each of the first and second additional release components is less than about 2.5 mm, less than about 2.0 mm, less than about 1.5 mm, less than about 1.0 mm, or about 0 A component according to any one of claims 1 to 5, which is less than 0.8 mm. each of said first and second additional release components containing an additive, wherein the total mass of additives contained within said first and second additional release components is between 10 and 14 mg; A component according to any one of claims 1-6. A component according to any one of the preceding claims, wherein the total volume of said first and second additional release components is between about 2 mm ³ and about 12 mm ³ . A component according to any one of the preceding claims, wherein the diameter of said first additional release component is different from the diameter of said second additional release component. A component according to any preceding claim, wherein each of said first and second additional release components comprises a capsule. 11. The component of Claim 10, wherein each of said first and second additional release components comprises a shell and an additive enclosed within said shell. 12. The component of claim 11, wherein said shell is breakable to release said additive enclosed within said shell. A component according to any preceding claim, wherein the first and second additional release components are substantially spherical. A component according to any preceding claim, wherein the additive contained within the first and second additional release components comprises an aerosol modifier. 15. Any of claims 1-14, wherein the first additional release component contains a first aerosol modifier and the second additional release component contains a second aerosol modifier. A component according to item 1. A component according to any preceding claim, further comprising a third additional release component. A component according to any preceding claim, wherein the fibrous material comprises filament tows. said filament tow comprising a weight per mm length of said body of material of about 10% to about 30% of the range between the minimum weight and maximum weight of a tow performance curve generated for said filament tow; 18. Component according to claim 17. An article for use in an aerosol delivery system comprising
an aerosol-generating material;
An article comprising a component according to any one of claims 1-18. 20. The article of claim 19, wherein the aerosol-generating material comprises tobacco material. 21. The article of claim 19 or 20, wherein the article is substantially cylindrical in shape. 22. The article of claim 21, wherein the article has a circumference within the range of 15mm to 23mm. The article of any one of claims 19-22, further comprising an aerosol cooling section. 24. The article of claim 23, wherein the aerosol cooling section comprises walls comprising an aerosol-generating material. 24. The article of claim 23, wherein said aerosol cooling section comprises a cavity surrounded by a paper tube, said paper tube having a wall thickness of at least 325 microns and/or a permeability of at least 100 Coresta units. . further comprising a hollow tubular element, said hollow tubular element positioned at an end of said article distal to said aerosol-generating material, said hollow tubular element being greater than about 10 mm or greater than about 12 mm; An article according to any one of claims 19-24, comprising a length. 27. The aerosol-generating material of any one of claims 19-26, wherein the aerosol-generating material is wrapped by a web having a permeability level of greater than about 2000 Coresta units, and wherein the component comprises at least one ventilation zone. Goods. The component is positioned downstream of the aerosol-generating material, the component comprising at least one vent zone, through which air drawn through the article at its downstream end passes through the aerosol-generating material. one air flow path is defined and a second air flow path through which air drawn through the article at its downstream end is drawn through the at least one ventilation zone in the component and into the article; 28. The article according to any one of claims 19 to 27, wherein the resistance to draw of said second air flow path is greater than the resistance of draw of said first air flow path. The component comprises at least one ventilation zone, and the level of ventilation provided by the at least one ventilation zone is between 45% and 65% of the volume of the aerosol passing through the component, or passing through the component. Article according to any one of claims 19 to 27, which is in the range of 40% to 60% of the volume of the aerosol. A system comprising an article according to any one of claims 19-29 and a non-combustible aerosol delivery device for heating the aerosol-generating material of the article. 25. An article according to claim 23 or 24, wherein when the article is inserted into the non-combustible aerosol delivery device, the minimum distance between the heater of the non-combustible aerosol delivery device and the aerosol cooling section 31. The system of Claim 30, wherein the distance is configured to be at least about 3mm. A method of manufacturing a component for an article for use in an aerosol delivery system comprising:
inserting first and second additional release components into the fibrous material stream;
shaping said stream of fibrous material into a body of fibrous material, said body of fibrous material comprising said first and second additional release components embedded within said body; each of the second additional release components having a maximum diameter of about 1.5 mm to about 2.5 mm, wherein the first and second additional release components are spaced apart by less than about 2.5 mm; are separated by a method.

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