Tobacco composition containing tobacco components and aerosol-forming material

Abstract

The present disclosure relates to a tobacco composition comprising a tobacco component and an aerosol-forming material, wherein the tobacco component comprises tobacco material in an amount of about 10% to about 90% by weight of the tobacco composition, and the tobacco material has a nicotine content of greater than 1.5% by weight of the tobacco material, and to a method for producing the tobacco composition. The present disclosure also relates to an article comprising the tobacco composition for use in an aerosol delivery system, and a system including a device configured to heat the tobacco composition and generate an aerosol from the tobacco composition.

Description

Technical Field

[0001] The present invention relates to a tobacco composition containing an aerosol-forming material, a method for producing the tobacco composition, and an article for use in an aerosol-generating device, and the article for use in the aerosol-generating device contains the tobacco composition.

Background Art

[0002] Many tobacco industry products include aerosol-generating articles such as tobacco compositions. Articles such as cigarettes and cigars burn an aerosolizable material to produce tobacco smoke during use. Attempts have been made to provide alternatives to these types of articles that burn tobacco by creating products that generate compounds without burning. Examples of such products are so-called non-combustion heating products, known as tobacco heating products or tobacco heating devices, that heat an aerosolizable material without burning it to release compounds.

Summary of the Invention

[0003] In some embodiments of the present invention, in a first aspect, there is provided a tobacco composition comprising a tobacco component and an aerosol-forming material, the tobacco component comprising leaf tobacco material in an amount of about 10% to about 90% by weight of the tobacco composition, and the nicotine content of the leaf tobacco material being more than 1.5% by weight of the leaf tobacco material.

[0004] In some embodiments of the present invention, in a second aspect, there is provided a tobacco composition comprising a tobacco component and an aerosol-forming material, the tobacco component comprising leaf tobacco material in an amount of about 10% to about 90% by weight of the tobacco composition, the leaf tobacco material comprising the aerosol-forming material in an amount of about 10% or less by weight of the leaf tobacco material, and the tobacco composition comprising the aerosol-forming material in an amount of about 10% to about 30% by weight of the tobacco composition.

[0005] In some embodiments of the present invention, in a third aspect, a tobacco composition is provided that includes a tobacco component and an aerosol-forming material. The tobacco component includes leaf tobacco material in an amount of about 10% to about 90% by weight of the tobacco composition, and the tobacco component includes menthol in an amount of about 3 mg to about 16 mg.

[0006] In some embodiments of the present invention, in a fourth aspect, a method for manufacturing the tobacco compositions of the first and second aspects is provided, the method including applying the aerosol-forming material to the leaf tobacco material.

[0007] In some embodiments of the present invention, in a fifth aspect, a tobacco composition manufactured using the method of the fourth aspect is provided.

[0008] In some embodiments of the present invention, in a sixth aspect, use in an article for use in an aerosol supply device of a tobacco composition according to the first, second, third, or fourth aspect is provided.

[0009] In some embodiments of the present invention, in a seventh aspect, an article for use in an aerosol supply system including the tobacco composition described in the first, second, third, or fourth aspect is provided.

[0010] In some embodiments of the present invention, in an eighth aspect, a system is provided that includes the tobacco composition described in the first, second, third, or fourth aspect and a device arranged to heat the tobacco composition to generate an aerosol from the tobacco composition.

[0011] Embodiments of the present invention will be described by way of example only with reference to the accompanying drawings.

Brief Description of the Drawings

[0012]

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Mode for Carrying Out the Invention

[0013] In this specification, the term "supply system" is intended to encompass a system that supplies a substance to a user, a non-combustion aerosol supply system that releases a compound from an aerosolizable material without burning the aerosolizable material, such as an e-cigarette, a tobacco heating product, a hybrid system that generates an aerosol using a combination of an aerosolizable material, an article containing an aerosolizable material and configured to be used inside one of these non-combustion aerosol supply systems, and It includes non-aerosol supply systems such as troches, gums, patches, articles containing powders that can be inhaled through patches, etc., and smokeless tobacco products such as smooth and sniffable tobacco that supply materials to users without forming aerosols.

[0014] In the present disclosure, a "non-combustion" aerosol supply system is a system that does not burn or ignite the aerosolizable materials that make up the aerosol supply system (or its components) in order to facilitate the supply of the aerosolizable materials to the user.

[0015] In one embodiment, the supply system is a non-combustion aerosol supply system such as an electric non-combustion aerosol supply system.

[0016] In one embodiment, the non-combustion aerosol supply system is an electronic cigarette, also known as a vaping device or an electronic nicotine delivery system (ENDS).

[0017] In one embodiment, the non-combustion aerosol supply system is a tobacco heating system, also known as a non-combustion heating system.

[0018] In one embodiment, the non-combustion aerosol supply system is a hybrid system that uses a combination of aerosolizable materials and generates an aerosol by heating one or more of them. Each of these aerosolizable materials may be in the form of, for example, a solid, liquid or gel. In one embodiment, the hybrid system includes a liquid or gel aerosolizable material and a solid aerosolizable material. The solid aerosolizable material may include, for example, tobacco materials or non-tobacco products.

[0019] Typically, a non-combustion aerosol supply system may include a non-combustion aerosol supply device, also referred to herein as an aerosol generating device, and articles used in the non-combustion aerosol supply system. However, an article that itself includes means for supplying power to an aerosol generating member is also envisioned as itself forming a non-combustion aerosol supply system.

[0020] In one embodiment, the non-combustion aerosol supply device may include a power source and a controller. The power source may be a power source or a heat generating power source. In one embodiment, the heat generating power source includes a carbon base material to which energy may be applied so as to distribute power in the form of heat to an aerosolizable material or a heat transfer material adjacent thereto. In one embodiment, a power source such as a heat generating power source is provided to an article to form a non-combustion aerosol supply.

[0021] In one embodiment, articles for use in a non-combustion aerosol sharing device may include an aerosolizable material, an aerosol generating member, an aerosol generating region, a mouthpiece and / or a region for containing the aerosolizable material.

[0022] In one embodiment, the aerosol generating member is a heater capable of interacting with the aerosolizable material to release one or more volatile substances from the aerosolizable material to form an aerosol. In one embodiment, the aerosol can be generated from the aerosolizable material without heating. For example, the aerosol generating member can generate an aerosol from the aerosolizable material without applying heat thereto, for example, by vibration, mechanical, pressurization or electrostatic means.

[0023] In one embodiment, the aerosolizable material may include an active material, an aerosol-forming material, and any one or more functional materials. The active material may include nicotine (optionally contained in tobacco or tobacco derivatives) and one or more other odorless physiologically active materials. The odorless physiologically active material is a material contained in the aerosolizable material to achieve a physiological reaction other than the sense of smell.

[0024] The aerosol-forming material may include one or more of glycerin, glycerol, propylene glycol, diethylene glycol, triethylene glycol, tetraethylene glycol, 1,3-butylene glycol, erythritol, meso-erythritol, ethyl vanillate, ethyl laurate, diethyl substrate, triethyl citrate, triacetin, diacetin mixture, benzyl benzoate, benzyl phenylacetate, tributyrin, lauryl acetate, lauric acid, myristic acid, and propylene carbonate.

[0025] The one or more functional materials may include one or more of flavorings, carriers, pH regulators, stabilizers, and / or antioxidants.

[0026] In one embodiment, an article for use in a non-combustion aerosol supply device may include an aerosolizable material or a region for containing the aerosolizable material. In one embodiment, an article for use in a non-combustion aerosol supply device may include a mouthpiece. The region for containing the aerosolizable material may be a storage region for storing the aerosolizable material. In one embodiment, the region for containing the aerosolizable material may be separated from or combined with the aerosol generation region.

[0027] In this specification, the aerosolizable material, also referred to as the aerosol - generating material and the aerosol - generating base material, is a material that can generate an aerosol when activated by, for example, heating, irradiation, or some other method. The aerosolizable material may be in the form of a solid, liquid, or gel, with or without, for example, nicotine and / or flavoring agents. In some embodiments, the aerosolizable material may include an "amorphous solid", which is also sometimes referred to as a "monolithic solid" (i.e., non - fibrous) separately. In some embodiments, the amorphous solid may be a dry gel. An amorphous solid is a solid material that holds a fluid such as a liquid inside it. In some embodiments, the aerosolizable material may contain, for example, from about 50 wt%, 60 wt%, or 70 wt% amorphous solid to about 90 wt%, 95 wt%, or 100 wt% amorphous solid.

[0028] The aerosolizable material may be present on a substrate. The substrate may be or may include, for example, paper, cardboard, paperboard, thick paper, recycled aerosolizable material, plastic material, ceramic material, composite material, glass, metal, or metal alloy.

[0029] An aerosol modifier is a substance that can modify an aerosol during use. The modifier may modify the aerosol in such a way as to have a physiological or sensory effect on the human body. Examples of aerosol modifiers include flavoring agents and sensory stimulants. A sensory stimulant produces a sensory - stimulating sensation that is perceived through a sensation such as cold or sour.

[0030] A susceptor is a material that can be heated by the penetration of a fluctuating magnetic field such as an alternating magnetic field. The heating material may be a conductive material, and the penetration of the fluctuating magnetic field may cause induction heating of the heating material. The heating material may be a conductive material, and the penetration of the fluctuating magnetic field may cause magnetic hysteresis heating of the heating material. The heating material may be due to both conductivity and magnetic force, whereby the heating material can be heated by both heating mechanisms.

[0031] Induction heating is a process of heating a conductive object by introducing a fluctuating magnetic field into the object. This process is explained by Faraday's law of electromagnetic induction and Ohm's law. An induction heater can include an electromagnet and a device for passing a fluctuating current, such as an alternating current, through the electromagnet. When the object to be heated and the electromagnet are arranged in an appropriate relative position such that the fluctuating magnetic field generated by the electromagnet penetrates the object, one or more eddy currents are generated within the object. The object has a resistance to the flow of current. Therefore, when such eddy currents are generated within the object, the eddy currents flow against the electrical resistance of the object, thereby heating the object. This process is called Joule heating, Ohmic heating, or resistive heating. An object that can be induction heated is known as a susceptor.

[0032] In one embodiment, the susceptor is in the form of a closed circuit. When the susceptor is in the form of a closed circuit, it has been found that the magnetic coupling between the susceptor and the electromagnet during use is strengthened, and as a result, Joule heating is increased or improved.

[0033] Magnetic hysteresis heating is a process of heating an object by introducing a fluctuating magnetic field into an object made of a magnetic material. A magnetic material can be considered to contain many atomic-scale magnets, i.e., magnetic dipoles. When a magnetic field penetrates such a material, the magnetic dipoles align along the magnetic field. Therefore, when a fluctuating magnetic field, such as an alternating magnetic field generated by an electromagnet, penetrates a magnetic material, the orientation of the magnetic dipoles changes in response to the applied fluctuating magnetic field. Heat is generated within the magnetic material due to such reorientation of the magnetic dipoles.

[0034] When an object has both conductivity and magnetism, introducing a fluctuating magnetic field into the object can cause both Joule heating and magnetic hysteresis heating in the object. Further, using a magnetic material can strengthen the fluctuating magnetic field, thereby strengthening Joule heating.

[0035] In each of the above processes, heat is generated not by heat conduction from an external heat source, but inside the object itself, so that a rapid temperature rise within the object and a more uniform heat distribution can be achieved. This can be achieved, in particular, by appropriately selecting the material and geometric shape of the object and appropriately selecting the magnitude and direction of the alternating magnetic field with respect to the object. Furthermore, in induction heating and magnetic hysteresis heating, there is no need to provide a physical connection between the source of the alternating magnetic field and the object, so that the design freedom and the controllability of the heating profile can be enhanced while reducing the cost.

[0036] Articles such as rod-shaped articles are often named as follows according to the length of the product. "Standard" (usually 68 - 75 mm, for example in the range of about 68 mm to about 72 mm), "Short" or "Mini" (68 mm or less), "King Size" (usually 75 - 91 mm, for example in the range of about 79 mm to about 88 mm), "Long" or "Super King" (usually 91 - 105 mm, for example in the range of about 94 mm to about 101 mm), and "Extra Long" (usually in the range of about 110 mm to about 121 mm).

[0037] They are also named as follows according to the circumference of the tobacco. "Standard" (about 23 - 25 mm), "Wide" (more than 25 mm), "Slim" (about 22 - 23 mm), "Slim Slim" (about 19 - 22 mm), "Super Slim" (about 16 - 19 mm), "Micro Slim" (less than about 16 mm).

[0038] Therefore, a king-size ultra-slim paper-wrapped cigarette, for example, has a length of about 83 mm and a circumference of about 17 mm.

[0039] Each format may be provided with a mouthpiece of a different length. The length of the mouthpiece is about 30 mm to 50 mm. The tipping paper connects the mouthpiece to the aerosol-generating material and is usually longer than the mouthpiece, for example, 3 - 10 mm in length, so that the tipping paper covers the mouthpiece and overlaps the aerosol-generating material in the form of a rod made of, for example, a base material, connecting the mouthpiece to the rod.

[0040] The articles, aerosol generating materials, and mouthpieces described in this specification can be made in any of the above formats, but are not limited thereto.

[0041] As used herein, the terms "upstream" and "downstream" are relative terms defined with respect to the direction of the mainstream smoke aerosol generating material drawn through the article or device during use.

[0042] The filamentous tow materials described in this specification may include cellulose acetate fiber tow. The filamentous tow materials may be formed using other materials used to form fibers such as polyvinyl alcohol (PVOH), polylactic acid (PLA), polycaprolactone (PCL), poly(1,4-butanediol succinate) (PBS), poly(butylene adipate-co-terephthalate) (PBAT), starch-based materials, paper, cotton, aliphatic polyester materials, and polysaccharide polymers or combinations thereof. The filamentous tow materials may or may not be plasticized with a plasticizer suitable for the filter material, such as triacetin, when the filter material is cellulose acetate tow. The tow can use any suitable specifications such as other cross-sections such as "Y" or "X" shapes, a fiber denier value of 2.5 to 15 denier per filament, for example 8.0 to 11.0 denier per filament, and a total denier value of 5,000 to 50,000, for example 10,000 to 40,000.

[0043] As used herein, the term "tobacco material" means any material including tobacco or its derivatives or substitutes. The term "tobacco material" may include one or more of tobacco, tobacco derivatives, expanded tobacco, reconstituted tobacco, or tobacco substitutes. The tobacco material may include one or more of ground tobacco, tobacco fiber, cut tobacco, extruded tobacco, leaf tobacco, tobacco stalk, reconstituted tobacco, and / or tobacco extract. As used herein, "leaf tobacco" means cut leaf tobacco.

[0044] As used herein, the terms "flavorant" and "flavoring agent" are permitted by local regulations and refer to materials that can be used to add desired tastes and scents to products for adult consumers.

[0045] As used herein, the terms "flavorant" and "flavoring agent" are permitted by local regulations and refer to materials that can be used to add desired tastes and scents to products for adult consumers. Such materials include extracts (e.g., licorice, hydrangea, phoebe leaf, chamomile, fenugreek, clove, menthol, Japanese mint, aniseed, cinnamon, herbs, kojic acid, cherry, berry, peach, apple, damson, bourbon, scotch, whiskey, spearmint, peppermint, lavender, cardamom, celery, cascarilla, nutmeg, sandalwood, bergamot, geranium, honey extract, rose oil, vanilla, lemon oil, orange oil, cassia, caraway, cognac, jasmine, ylang-ylang, sage, perilla, pimento, ginger, anise, coriander, coffee, peppermint oil from any species of the genus Mentha, etc.), seasonings, bitter 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, mannitol, etc.), and other additives such as charcoal, chlorophyll, minerals, plant-based deodorants. These materials may be imitation, synthetic or natural ingredients, or blends thereof. These materials may be in any suitable form, such as, for example, oils, liquids, powders, etc.

[0046] Preferably, the aerosol generating material or substrate 3 is formed from a tobacco material as described herein that contains tobacco components. The tobacco components include leaf tobacco. In some embodiments, the tobacco components include a tobacco material selected from the group consisting of extruded tobacco, bandcast tobacco, and mixtures thereof.

[0047] The flue-cured tobacco that may be used in the tobacco composition described herein may be any suitable tobacco, including Virginia (flue-cured and / or air-cured) and / or Burley and / or Oriental, as a single grade or blend, shredded scraps or whole leaves. The tobacco composition may include a mixture of any of these flue-cured tobacco materials.

[0048] The flue-cured tobacco is present in an amount of about 10% to about 90% by weight of the tobacco components. In some embodiments, the flue-cured tobacco may be present in an amount of about 11% to about 48%, about 12% to about 46%, about 13% to about 44%, about 14% to about 42%, about 15% to about 40%, about 16% to about 38%, about 17% to about 36%, about 18% to about 34% or about 19% to about 32% by weight of the tobacco components. In preferred embodiments, the tobacco components include flue-cured tobacco in an amount of about 15% to about 25%, about 35% to about 45% or about 55% to 65% by weight of the tobacco components. In preferred embodiments, the tobacco components may include flue-cured tobacco in an amount of about 15%, about 16%, about 17%, about 18%, about 19%, about 20%, about 21%, about 22%, about 23%, about 24%, about 25%, about 26%, about 27%, about 28%, about 29% or about 30% by weight of the tobacco components.

[0049] In some embodiments, the tobacco components include flue-cured tobacco in an amount of about 31%, 32%, 33%, 34%, 35%, 36%, 37%, 38%, 39%, 40%, 41%, 42%, 43%, 44%, 45%, 46%, 47%, 48%, 49% or 50%, 51%, 52%, 53%, 54%, 55%, 56%, 57%, 58%, 59%, 60%, 61%, 62%, 63%, 64%, 65%, 66%, 67%, 68%, 69% or 70%.

[0050] In the compositions described herein, when amounts are expressed as weight %, this means on a dry weight basis unless otherwise indicated, in order to avoid misunderstanding. Accordingly, all water present in the tobacco composition or any of its components is completely ignored for the purpose of measuring weight %. The moisture content of the tobacco compositions described herein may vary, for example, from 5 to 15 wt%. The moisture content of the tobacco compositions described herein may vary, for example, depending on the temperature, pressure, and humidity conditions under which the composition is maintained. The moisture content may be measured by Karl-Fisher analysis as described herein.

[0051] On the other hand, to avoid misunderstanding, all components other than water are included in the weight of the tobacco composition even in the case where the aerosol-forming material is a component in a liquid phase such as glycerin or propylene glycol. However, when the aerosol-forming material is provided to the tobacco component of the tobacco composition or the filling member (if any) of the tobacco composition instead of or in addition to being separately added to the tobacco composition, the aerosol-forming material is not included in the weight of the tobacco composition or the filling member, but is included in the weight of the "aerosol-forming material" at the weight % defined herein. All other components present in the tobacco composition are included in the weight of the tobacco component even if they are non-tobacco-derived (e.g., non-tobacco fibers in the case of paper-reconstituted tobacco).

[0052] The tobacco component described herein contains nicotine. The nicotine content is from 0.5 to 2% by weight of the tobacco component, and may be, for example, from 0.5 to 1.75% by weight of the tobacco component, from 0.8 to 1.2% by weight of the tobacco component, or from about 0.8 to about 1.75% by weight of the tobacco component. In some embodiments, the nicotine content may be from 0.8 to 1.0% by weight of the tobacco component.

[0053] In one aspect of the present disclosure, a tobacco composition is provided that includes a tobacco component and an aerosol-forming material, the tobacco component including leaf tobacco in an amount of from about 10% to about 90% by weight of the tobacco component, the leaf tobacco having a nicotine content of greater than 1.5% by weight of the leaf tobacco.

[0054] It may be important to adjust the nicotine content of the composition. In conventional tobacco heating products, the tobacco composition contains reconstituted tobacco material. The nicotine content of the reconstituted tobacco material is generally relatively low. For example, the reconstituted tobacco material contains nicotine in an amount of less than about 1.5% by weight of the reconstituted tobacco material. Increasing the nicotine content of such a composition is a challenge.

[0055] The inventors have discovered that the nicotine content of the tobacco composition can be carefully adjusted by incorporating cut tobacco into the composition in addition to the reconstituted tobacco material. In particular, it has been discovered that it is particularly advantageous to incorporate cut tobacco having a nicotine content of more than 1.5% (by weight of the composition) into the composition. Incorporating cut tobacco having a nicotine content of more than about 1.5% by weight has been found to enhance the sensory stimulation characteristics (e.g., taste) of the tobacco composition when heated.

[0056] Without wishing to be bound by any theory, incorporating a cut tobacco material having a nicotine content of more than 1.5% by weight of the cut tobacco material into the composition makes it easier to release components from the tobacco composition, which is thought to have a beneficial effect on the sensory properties of the tobacco composition when it is heated by an aerosol generating device. The amount of nicotine supplied to the user when the tobacco composition containing a cut tobacco material having a nicotine content of more than 1.5% by weight of the cut tobacco material is heated by an aerosol generating device is close to the amount of nicotine supplied to the user of a conventional combustion-type smoking product.

[0057] 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.

[0058] The tobacco composition contains a tobacco component and an aerosol-forming material. The tobacco component may contain leaf tobacco material in an amount of about 10% to about 90% by weight of the tobacco component, and the leaf tobacco material may contain the aerosol-forming material in an amount of about 10% or less by weight of the leaf tobacco material. The tobacco composition may contain the aerosol-forming material in an amount of about 10% to about 30% by weight of the tobacco composition. Preferably, the tobacco composition contains the aerosol-forming material in an amount of about 10% to about 20% by weight of the tobacco composition.

[0059] It has been found that incorporating the aerosol-forming material in an amount of about 10% to about 30% by weight of the tobacco composition further improves the sensory properties of the tobacco composition when heated in an aerosol-generating device. Filling the aerosol-generating material in an amount of about 10% to about 30% by weight of the composition is advantageous because it makes the sensory properties of the composition similar to those of conventional combustible tobacco products.

[0060] The tobacco composition may contain a tobacco component and an aerosol-forming material. The tobacco component contains leaf tobacco material in an amount of about 10% to about 90% by weight of the tobacco component and contains menthol in an amount of about 3 mg to about 16 mg. Filling menthol in an amount of about 3 mg to 16 mg by weight of the tobacco component is advantageous because it improves the sensory properties of the tobacco composition when heated by an aerosol-generating device.

[0061] The tobacco leaf has a nicotine content of more than 1.5% by weight of the tobacco leaf. In some embodiments, the tobacco leaf has a nicotine content of 1.5% to about 5%, preferably about 1.5% to about 4% by weight of the tobacco leaf. The tobacco leaf may have a nicotine content of 1.5%, 1.6%, 1.7%, 1.8%, 1.9%, 2%, 2.1%, 2.2%, 2.3%, 2.4%, 2.5%, 2.6%, 2.7%, 2.8%, 2.9%, 3%, 3.1%, 3.2%, 3.3%, 3.4%, 3.5%, 3.6%, 3.7%, 3.8%, 3.9%, 4%, 4.1%, 4.2%, 4.3%, 4.4%, 4.5%, 4.6%, 4.7%, 4.8%, 4.9% or 5% by weight of the tobacco leaf. In some embodiments, the tobacco leaf has a nicotine content of more than about 1.5% and up to about 4% by weight of the tobacco leaf material.

[0062] The remainder of the tobacco component may include reconstituted tobacco paper, extruded tobacco, bandcast reconstituted tobacco or a combination of another form of tobacco such as bandcast reconstituted tobacco and tobacco granules. Preferably, the tobacco component includes reconstituted tobacco paper material.

[0063] Reconstituted tobacco paper means a tobacco material formed by a process in which tobacco raw material is extracted with a solvent so that the tobacco raw material becomes an extract of soluble components and a residue containing fibrous material, and then the extract (usually after concentration and optionally after further treatment) is recombined with the fibrous material from the residue (usually after removing impurities from the fibrous material and optionally adding a small amount of non-tobacco fiber) by depositing the extract on the fibrous material. The recombination process is similar to the papermaking process.

[0064] The reconstituted tobacco paper may be any type of reconstituted tobacco paper known in the art. In certain embodiments, the reconstituted tobacco paper is manufactured from a raw material including one or more of tobacco strips, tobacco stalks, and whole tobacco leaves. In another embodiment, the reconstituted tobacco paper is manufactured from a raw material consisting of tobacco strips and / or whole tobacco leaves and tobacco stalks. However, in other embodiments, scraps, fines and husks may be employed in the raw material separately or in addition thereto.

[0065] The paper-recycled tobacco for use in the tobacco material described in this specification may be prepared by methods known to those skilled in the art for the preparation of paper-recycled tobacco.

[0066] Referring to FIG. 1, tobacco raw materials such as leaves, strips, stems, scraps, fine powders and / or husks (in some embodiments, leaves, strips and stems) are first mixed with an aqueous solvent (e.g., a water-miscible solvent such as water and ethanol). Distilled water, deionized water or tap water may be employed. The suspension of tobacco in the solvent is stirred by stirring or vibration, for example, to increase the rate of extraction of the soluble portion from the fibrous portion of the tobacco. Stirring is usually carried out for 30 minutes to 6 hours or less. Stirring is carried out with a stirrer including a container and a blade for stirring. The amount of the solvent in the suspension may vary within a wide range of about 75% to 99% by weight of the suspension depending on the tobacco raw material, the type of the solvent and the stirring device (especially the type of the blade) and the temperature of the suspension. A typical temperature range of the suspension is from about 10°C to about 100°C.

[0067] The soluble portion of the tobacco material is separated from the insoluble fibrous portion of the tobacco, for example, by air pressure, water pressure, or mechanical pressing or filtration. After separation, the fibrous portion of the tobacco is typically subjected to mechanical refining to produce fiber pulp. Suitable refiners are typically disk or conical refiners. The fiber pulp is formed on a Fourdrinier type paper machine into a base web containing tobacco fiber pulp. The base web is placed on a flat wire belt from which excess water is removed by gravity drainage or suction drainage. Non-tobacco fibers such as cellulose, wheat fiber, or wood fiber may be included in the fibrous portion derived from tobacco at this stage. The soluble portion of the tobacco material is concentrated using a conventional type of concentrator such as a film evaporator or a vacuum evaporator. After concentration, components such as aerosol forming materials (as defined herein), casings, for example, acids such as cocoa, licorice, and malic acid, or flavorants (as defined herein) are added and the concentrated tobacco solubles are mixed. Next, the concentrated tobacco solubles potentially containing aerosol forming materials and / or casings and / or flavorants are combined with the dried tobacco fiber sheet to form reconstituted tobacco. The concentrated solubles can be returned to the fiber web by various methods such as spraying, coating, saturation, sizing, etc.

[0068] Finally, the reconstituted tobacco is dried. Optionally, the reconstituted tobacco may be cut into strips, wound into rolls, slit into bobbins or cut into shredded waste. As used herein, the terms "flavor" and "flavorant" are permitted by local regulations and refer to materials that can be used to add flavors and scents desired by adult consumers to the product. Such materials include extracts (e.g., licorice, hydrangea, phoebe leaf, chamomile, fenugreek, clove, menthol, Japanese mint, aniseed, cinnamon, herb, kojic acid, cherry, berry, peach, apple, drambuie, bourbon, scotch, whiskey, spearmint, peppermint, lavender, cardamom, celery, cascarilla, nutmeg, sandalwood, bergamot, geranium, honey extract, rose oil, vanilla, lemon oil, orange oil, cassia, caraway, cognac, jasmine, ylang-ylang, sage, perilla, pimento, ginger, anise, coriander, coffee, peppermint oil from any species of the genus Mentha, etc.), seasonings, bitter 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, mannitol, etc.), and other additives such as charcoal, chlorophyll, minerals, plants, odor suppressants, etc. These materials may be imitation, synthetic or natural ingredients, or blends thereof. These materials may be in any suitable form, such as oils, liquids, powders, etc. Examples of paper reconstituted tobacco that can be used in the present invention are shown in the examples.

[0069] The tobacco components may include a mixture of leaf tobacco and paper reconstituted tobacco material. The paper reconstituted tobacco material may have a nicotine content that is less than the nicotine content of an equal weight of leaf tobacco. For example, the reconstituted tobacco material may have a nicotine content of less than 1.5% by weight of the reconstituted tobacco material.

[0070] By using tobacco leaves with a nicotine content of more than 1.5% in combination with low-nicotine base materials such as recycled paper tobacco, a tobacco material containing an appropriate amount of nicotine can be obtained, which has better sensory performance than using recycled paper tobacco alone. This has been found to be an advantageous fact.

[0071] The tobacco component may contain recycled paper tobacco in an amount of about 10% to about 90% by weight of the tobacco component. In some embodiments, the recycled paper tobacco is present in an amount of 10% to 80% or 20% to 70% by weight of the tobacco component. In some embodiments, the tobacco component contains recycled paper tobacco material in an amount of about 50% to about 90% of the tobacco component.

[0072] In some embodiments, the recycled tobacco may be present in an amount of about 10% to about 89%, about 20% to about 88%, about 30% to about 87%, about 40% to about 86%, about 50% to about 85%, about 60% to about 84%, about 70% to about 83% by weight of the tobacco component. In some embodiments, the tobacco component may contain recycled tobacco in an amount of about 75% to about 85% by weight of the tobacco component.

[0073] In a preferred embodiment, the tobacco component may contain recycled tobacco in an amount of about 70%, about 71%, about 72%, about 73%, about 74%, about 75%, about 76%, about 77%, about 78%, about 79%, about 80%, about 81%, about 82%, about 83%, about 84% or about 85% by weight of the tobacco component.

[0074] In one embodiment, the leaf tobacco may be present in an amount of at least 10% by weight of the tobacco component, and the remainder of the tobacco component includes a combination of recycled paper tobacco, band-cast recycled tobacco or other forms of tobacco such as band-cast recycled tobacco and tobacco granules.

[0075] The recycled tobacco material may have a density of about 700 milligrams per cubic centimeter (mg / cc).

[0076] Such tobacco materials have been found to be particularly effective in providing an aerosol - generating material that can be heated quickly to release an aerosol compared to denser materials. For example, the inventor has tested the properties of various aerosol - generating materials when heated, such as band - cast recycled tobacco materials and paper - recycled tobacco materials. For each given aerosol - generating material, there is a specific zero - heat - flux temperature while heat is being applied to the material. Below this temperature, the net heat flux is endothermic, i.e., more heat enters the material than exits it. Above this temperature, the net heat flux is exothermic, i.e., more heat exits the material than enters it. Materials with a density of less than 700 mg / cc had a low zero - heat - flux temperature. Having a low zero - heat - flux temperature has a beneficial effect over the time it takes for the aerosol - generating material to first release an aerosol, since a significant portion of the heat flux exiting the material is through the formation of the aerosol. For example, it was found that an aerosol - generating material with a density of less than 700 mg / cc had a zero - heat - flux temperature of less than 164°C, compared to a material with a density greater than 700 mg / cc and a zero - heat - flux temperature above 164°C.

[0077] The density of the aerosol - generating material also affects the rate of heat transfer through the material. At low densities, such as less than 700 mg / cc, the rate of heat transfer through the material is slower, thus enabling a more sustained release of the aerosol.

[0078] The weight ratio of tobacco leaves to the paper-recycled tobacco material may be 10:90, 11:89, 12:88, 13:87, 14:86, 15:85, 16:84, 17:83, 18:82, 19:81, 20:80, 21:79, 22:78, 23:77, 24:76, 25:75, 26:74, 27:73, 28:72, 29:71, 30:70, 31:69, 32:68, 33:67, 34:66, 35:65, 36:64, 37:63, 38:62, 39:61, 40:60, 41:59, 42:58, 43:57, 44:56, 45:55, 46:54, 47:53, 48:52, 49:51, 50:50, 51:49, 52:48, 53:47, 54:46, 55:45, 56:44, 57:43, 58:42, 59:41, 60:40, 61:39, 62:38, 63:37, 64:36, 65:35, 66:34, 67:33, 68:32, 69:31, 70:30, 71:29, 72:28, 73:27, 74:26, 75:25, 76:24, 77:23, 78:22, 79:21, 80:20, 81:19, 82:18, 83:17, 84:16, 85:15, 86:14, 87:13, 88:12, 89:11 or 90:10 (weight of tobacco leaves: weight of paper-recycled tobacco material).

[0079] Preferably, the aerosol-generating material 3 comprises a recycled tobacco material having a density of less than about 700 mg / cc, such as a paper-recycled tobacco material. More preferably, the aerosol-generating material 3 comprises a recycled tobacco material having a density of less than about 600 mg / cc. Separately or in addition thereto, the aerosol-generating material 3 preferably comprises a recycled tobacco material having a density of at least 350 mg / cc that allows for sufficient heat conduction through the material.

[0080] The tobacco composition contains an aerosol-forming material. In this context, an "aerosol-forming material" is a chemical substance that promotes the generation of an aerosol. The aerosol-forming material may promote the generation of an aerosol by promoting the initial vaporization of the gas and / or the aggregation into inhalable solid and / or liquid aerosols. In some embodiments, the aerosol-forming material may improve the supply of flavor from the aerosol-generating material.

[0081] Generally, any suitable aerosol forming material or forming agent may be included in the aerosol generating material of the present invention. Suitable aerosol forming materials include polyols such as sorbitol, glycerin and glycols such as propylene glycol or triethylene glycol, non-polyols such as monohydric alcohols, high boiling point hydrocarbons, acids such as lactic acid, glycerin derivatives, diacetin, triacetin, triethylene glycol diacetate, esters such as triethyl citrate or ethyl myristate and isopropyl myristate including myristic acid esters, and aliphatic carboxylic acid esters such as methyl stearate, dimethyl dodecanedioate and dimethyl tetradecanedioate, but are not limited thereto. In a preferred embodiment, the aerosol forming material is selected from the group consisting of glycerin, sorbitol, propylene glycol, triethylene glycol, lactic acid, diacetin, triacetin, triethylene glycol diacetate, triethyl citrate, ethyl myristate, isopropyl myristate, methyl stearate, dimethyl dodecanedioate, dimethyl tetradecanedioate, and mixtures thereof.

[0082] The aerosol forming material has been found to improve the perceived performance of articles for use in aerosol generating devices containing tobacco compositions by assisting the transfer of compounds such as flavor compounds from the tobacco material to the consumer.

[0083] The aerosol forming material may be included in any component of the tobacco composition. Alternatively or in addition, the aerosol forming material may be added separately to the tobacco composition. In any case, the total amount of the aerosol forming material in the tobacco material must be the amount defined herein.

[0084] The tobacco material may contain an aerosol-forming material in an amount of about 10% or less by weight of the tobacco material. In other embodiments, the tobacco may contain an aerosol-forming material in an amount of about 20% or less or about 15% to about 20% by weight of the tobacco. The tobacco may contain an aerosol-forming material in an amount of about 5%, about 10% or about 15% by weight of the tobacco.

[0085] It has been found to be advantageous to add this to other components of the tobacco material, such as a reconstituted tobacco material, in a high weight percentage in order to achieve a total amount of aerosol-forming material of 10% to 20% by weight of the tobacco material.

[0086] In one aspect of the present disclosure, there is provided a tobacco composition comprising a tobacco component and an aerosol-forming material, the tobacco component comprising leaf tobacco material in an amount of about 10% to about 90% by weight of the tobacco component, the leaf tobacco material comprising the aerosol-forming material in an amount of about 10% or less by weight of the leaf tobacco material, and the tobacco composition comprising the aerosol-forming material in an amount of about 10% to about 30% by weight of the tobacco composition. Preferably, the tobacco composition comprises the aerosol-forming material in an amount of about 10% to about 20% by weight of the tobacco composition.

[0087] In some embodiments, the aerosol-forming material may be glycerin, propylene glycol or a mixture of glycerin and propylene glycol. Preferably, the aerosol-forming material comprises glycerin. Glycerin 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 included, may be present in an amount of 0.1 - 0.3% by weight of the composition.

[0088] The aerosol-forming material may be contained within the components of the tobacco composition. For example, the aerosol-forming material may be contained within reconstituted tobacco and / or, if any, a filler component.

[0089] Alternatively or in addition, the aerosol-forming material may be added separately to the tobacco material. In either case, the total amount of aerosol-forming material in the tobacco material must be the amount specified herein.

[0090] The recycled paper tobacco material may contain an aerosol-forming material. The recycled paper tobacco material may contain an aerosol-forming material in an amount of about 10% to about 20% by weight of the recycled tobacco material. In some embodiments, the recycled paper tobacco material may contain an aerosol-forming material in an amount of about 10%, about 11%, about 12%, about 13%, about 14%, about 15%, about 16%, about 17%, about 18%, about 19% or about 20% by weight of the recycled tobacco material.

[0091] The tobacco material described herein may contain an aerosol modifier such as any of the flavorants 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 of menthol, preferably 5 mg to 18 mg, and more preferably 8 mg to 16 mg of menthol. In this example, the tobacco material contains 16 mg of menthol. The tobacco material may contain 2 wt% to 8 wt% of menthol, preferably 3 wt% to 7 wt% of menthol, and more preferably 4 wt% to 5.5 wt% of menthol. In one embodiment, the tobacco material contains 4.7 wt% of menthol. Such a high filling amount of menthol is achieved, for example, by using a high percentage of recycled tobacco material such as more than 50% by weight of the tobacco material. Alternatively or in addition, by using a high-capacity aerosol-generating material such as a tobacco material, for example, about 500 mm 3 or more preferably 1000 mm 3 or more of an aerosol-generating material such as a tobacco material, the menthol filling amount achieved can be increased.

[0092] The tobacco material may be provided in the form of shredded tobacco. The shredded tobacco has a cutting width of at least 15 cut pieces per inch (5.9 cut parts per centimeter, equivalent to a cutting width of about 1.7 mm). Preferably, the shredded tobacco has a cutting width of at least 18 cut pieces per inch (about 7.1 cut pieces per centimeter, equivalent to a cutting width of about 1.4 mm), more preferably at least 20 cut pieces per inch (7.9 cut pieces per centimeter, equivalent to a cutting width of about 1.27 mm). In one example, the shredded tobacco has a cutting width of 22 cut pieces per inch (8.7 cut pieces per centimeter, equivalent to a cutting width of about 1.15 mm). Preferably, the shredded tobacco has a cutting width of at least 40 cut pieces per inch or less (about 15.7 cut pieces per centimeter, equivalent to a cutting width of about 0.64 mm). A cutting width of 0.5 mm to 2.0 mm, for example 0.6 mm to 1.5 mm or 0.6 mm to 1.7 mm, has been found to result in a preferred tobacco material in terms of the surface area to volume ratio when heated, the overall density of the base material 3, and the pressure drop. The shredded tobacco can be formed from a mixture in the form of a tobacco material, for example a mixture of leaf tobacco and one or more of recycled paper tobacco, extruded tobacco, and bandcast tobacco. Preferably, the tobacco material contains recycled paper tobacco.

[0093] Leaf tobacco and / or recycled paper tobacco material has a width of about 0.5 mm to about 2 mm, about 0.6 mm to about 1.75 mm, about 0.6 mm to about 1.7 mm, or about 0.7 to about 1.5 mm.

[0094] In the tobacco composition described herein, the tobacco composition may include a filler component. The filler component is generally a non-tobacco component, i.e., a component that does not contain tobacco-derived components. The filler component may be a non-tobacco fiber such as wood fiber, pulp, or wheat fiber. The filler component may be an inorganic material such as chalk, perlite, vermiculite, diatomaceous earth, colloidal silica, magnesium oxide, magnesium sulfate, or magnesium carbonate. The filler component may be a non-tobacco cast material or a non-tobacco extruded material.

[0095] The filler component may be present in an amount of 0 to 20% by weight of the tobacco material or 1 to 10% by weight of the composition. In a preferred embodiment, the tobacco composition comprises a filler component of about 5% to about 10% by weight of the tobacco composition. In some embodiments, the filler component is not included.

[0096] The extruded tobacco may optionally be included in the tobacco composition described herein. When the extruded tobacco is included, it may be present, for example, in an amount of 10 to 30% or 10 to 20% by weight of the tobacco component. The extruded tobacco that may be used in the tobacco composition described herein may be prepared by methods known to those skilled in the art for the preparation of extruded tobacco. In some embodiments, the extruded tobacco can be prepared as follows. The tobacco composition may include Virginia (hot air dried) tobacco, Burley tobacco and / or Oriental tobacco. The tobacco composition may be stems, scraps, strips, fines or husks. Additional components may include non-tobacco fibers such as wheat straw fiber or wheat fiber, binders such as cellulose or modified celluloses such as hydroxypropyl cellulose and carboxymethyl cellulose and casing such as acids such as malic acid.

[0097] As shown in FIG. 2, the tobacco composition and any additional components are mixed in a mixing silo and conveyed to an extruder by a metering screw and a conveying screw, where it is mixed with water and an aerosol forming material is also added at this stage. After extrusion, the extruded tobacco is cooled on a cooling belt.

[0098] Materials similar to those described in the above section but made using only non-tobacco fibers such as wheat fiber or wood fiber may also be used as the filler component of the tobacco composition.

[0099] In some embodiments of one aspect of the present disclosure, a method of manufacturing the tobacco composition described herein is provided, the method comprising adding the aerosol forming material described herein to the tobacco material.

[0100] The method of the present invention involves combining a leaf tobacco material with a recycled tobacco material containing an aerosol-forming material in an amount of 10% to 20% by weight of the recycled tobacco material.

[0101] As shown in Figure 3, the tobacco composition is produced by a method that includes adding an aerosol-forming material to leaf tobacco and then combining the leaf tobacco containing the aerosol-forming material with a recycled tobacco material.

[0102] For example, the aerosol-forming material may be added to the leaf tobacco by spraying it onto the leaf tobacco or immersing the leaf tobacco in the aerosol-forming material. Alternatively or in addition, the tobacco composition may be produced by adding the aerosol-forming material to the recycled tobacco material.

[0103] Embodiments according to aspects of the present disclosure provide a tobacco composition produced by the methods described herein.

[0104] Embodiments according to aspects of the present disclosure use the tobacco composition described herein in an article for use in an aerosol-generating device. The tobacco composition may be used in the manufacturing process of an article for use in an aerosol-generating device.

[0105] Embodiments according to aspects of the present disclosure provide an article for use in an aerosol-generating device that includes the tobacco composition described herein. The article for use in an aerosol-generating device includes a rod of the tobacco composition. The rod may have a total weight of from about 250 mg to about 350 mg.

[0106] In certain embodiments, the tobacco composition may be wrapped in a wrapper having an air permeability of less than 100 Coresta units.

[0107] The article for use in an aerosol-generating device may include a recycled tobacco material having a density of less than about 700 milligrams per cubic centimeter.

[0108] Articles for use in an aerosol generating device may have an outer perimeter of at least 19 mm, preferably from about 19 mm to about 23 mm or about 21 mm. This facilitates insertion of the article for use in an aerosol generating device into the aerosol generating device.

[0109] In an embodiment according to an aspect of the present disclosure, there is provided a system comprising a tobacco composition as described herein and a device arranged to heat the tobacco composition to generate an aerosol from the tobacco composition.

[0110] In some embodiments, the system includes an article for use in an aerosol generating device as described herein, the aerosol generating device containing at least a portion of the article for use in an aerosol generating device containing a tobacco composition, heating the said portion of the article for use in an aerosol generating device containing a tobacco composition, and being arranged to generate an aerosol from the tobacco composition.

[0111] Figure 4 is a side cross-sectional view of article 1 for use in a non-combustion aerosol supply device.

[0112] Article 1 includes a mouthpiece 2 and a cylindrical rod 3 made of an aerosol generating material for tobacco in this example, which is connected to the mouthpiece 2. Here, the aerosol generating material 3, also referred to as the aerosol generating base material 3, includes at least one aerosol forming material. In this example, the aerosol forming material is glycerin. In another example, the aerosol forming material may be another material described in this specification or a combination thereof. It has been found that this aerosol forming material improves the sensory performance of the article by assisting the transfer of compounds such as flavor compounds from the aerosol generating material to the consumer. However, adding such an aerosol forming material to the aerosol generating material in an article for use in a non-combustion aerosol supply system has the problem that when the aerosol forming material is aerosolized upon heating, it increases the mass of the aerosol supplied by the article, and this increased mass is maintained at a high temperature when it passes through the mouthpiece. When the aerosol passes through the mouthpiece, the aerosol transfers heat into the mouthpiece and warms the outer surface of the mouthpiece, including the area that comes into contact with the consumer's lips during use. The temperature of the mouthpiece becomes much higher than the temperature to which the consumer is accustomed when smoking, for example, a cigarette, which can be an undesirable effect caused by the use of such an aerosol forming material.

[0113] The portion of the mouthpiece that contacts the consumer's lips typically has a paper tube surrounding a cylindrical body that is usually hollow or made of a filter material.

[0114] As shown in FIG. 4, the mouthpiece 2 of the article 1 includes an upstream end 2a adjacent to the aerosol generating substrate 3 and a downstream end 2b remote from the aerosol generating substrate 3. At the downstream end 2b, the mouthpiece 2 has a hollow tubular member 4 formed from a filamentous tow. It has been found advantageous that at the downstream end 2b of the mouthpiece which contacts the consumer's lips during use of the article 1, the temperature of the outer surface of the mouthpiece 2 is significantly reduced. In addition, it is also known that the use of the tubular member 4 significantly reduces the temperature of the outer surface of the mouthpiece 2 even upstream of the tubular member 4. Without wishing to be bound by any theory, this is presumably due to the tubular member 4 directing the aerosol closer to the center of the mouthpiece 2 and thus reducing the transfer of heat from the aerosol to the outer surface of the mouthpiece 2.

[0115] In this example, the article 1 has an outer circumference of about 21 mm (i.e., the article is in a demi-slim format). In other examples, the article can be provided in any of the formats described herein having an outer circumference of, for example, 15 mm to 25 mm. Since the article is heated to emit an aerosol, an improvement in heating efficiency can be achieved by using an article having a smaller outer circumference within this range, for example a circumference of less than 23 mm. It has been found that an article circumference of greater than 19 mm is particularly effective in achieving an improvement in aerosol by heating while maintaining a suitable product length. It has been found that articles having a circumference of 19 mm to 23 mm, more preferably 20 mm to 22 mm, can satisfactorily balance efficient heating while effectively supplying the aerosol.

[0116] The outer circumference of the mouthpiece 2 is substantially the same as the outer circumference of the rod 3 of the aerosol generating material, thereby smoothing the space between these members. In this example, the outer circumference of the mouthpiece 2 is about 20.8 mm. The tipping paper 5 is wound around the entire length of the mouthpiece 2 and a part of the rod 3 of the aerosol generating material, has an adhesive on its inner surface, and connects the mouthpiece 2 and the rod 3. In this example, the tipping paper 5 extends over 5 mm on the aerosol generating material rod. Separately from this, it may extend over 3 mm to 10 mm, more preferably 4 mm to 6 mm on the rod, so that the mouthpiece 2 and the rod 3 can be securely attached. The tipping paper 5 may have a basis weight greater than the basis weight of the plug wrapper used for the article 1, for example, 40 gsm to 80 gsm, more preferably 50 gsm to 70 gsm, and may have a basis weight of 58 gsm in this example. The basis weights within these ranges are flexible enough to wrap the article 1 while having an acceptable tensile strength, and it has been found that a tipping paper that adheres to itself along the seam suppressing the longitudinal direction of the paper is obtained as a result. The outer circumference of the tipping paper 5 becomes about 21 mm when wound around the mouthpiece 2.

[0117] The "wall thickness" of the hollow tubular member 4 corresponds to the thickness of the wall of the tube 4 in the radial direction. This is measured using, for example, calipers. It is advantageous for the wall thickness to be greater than 0.9 mm, more preferably 1.0 mm or more. Preferably, the wall thickness is substantially constant around the entire wall of the hollow tubular member 4. However, when the wall thickness is not substantially constant, the wall thickness is preferably greater than 0.9 mm, more preferably 1.0 mm or more at any point around the hollow tubular member 4.

[0118] Preferably, the length of the hollow tubular member 4 is less than about 20 mm. More preferably, the length of the hollow tubular member 4 is less than about 15 mm. Even more preferably, the length of the hollow tubular member 4 is less than about 10 mm. Additionally or alternatively, the length of the hollow tubular member 4 is at least about 5 mm. Preferably, the length of the hollow tubular member 4 is at least about 6 mm. In some preferred embodiments, the length of the hollow tubular member 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, and most preferably about 6 mm, 7 mm, or about 8 mm. In this example, the length of the hollow tubular member 4 is 6 mm.

[0119] Preferably, the density of the hollow tubular member 4 is at least about 0.25 grams per cubic centimeter (g / cc), more preferably at least about 0.3 g / cc, per cubic centimeter. Preferably, the density of the hollow tubular member 4 is at least about 0.75 grams per cubic centimeter (g / cc), more preferably less than 0.6 g / cc, per cubic centimeter. In some embodiments, the density of the hollow tubular member 4 is from 0.25 to 0.75 g / cc, more preferably from 0.3 to 0.6 g / cc, even more preferably from 0.4 g / cc to 0.6 g / cc, or about 0.5 g / cc. It has been found that these densities achieve a good balance between the good stiffness provided by the high-density material and the low thermal conductivity of the low-density material. For the purposes of the present invention, the "density" of the hollow tubular member 4 means the density of the filamentary tow forming the member, including any plasticizer incorporated therein. The density is determined by dividing the total weight of the hollow tubular member 4 by the total volume of the hollow tubular member 4, and the total volume can be calculated using appropriate measurements of the hollow tubular member 4, for example, using calipers. If necessary, appropriate dimensions may be measured using a microscope.

[0120] The filamentary tow forming the hollow tubular member 4 preferably has a total denier of less than 45,000, more preferably less than 42,000. It has been found that this total denier can form a tubular member 4 that is not too dense. Preferably the total denier is at least 20,000, more preferably at least 25,000. In a preferred embodiment, the filamentary tow forming the hollow tubular member 4 has a total denier of 25,000 to 45,000, more preferably 35,000 to 45,000. Preferably the cross-sectional shape of the filamentary tow is a "Y" shape, although in other embodiments other shapes such as an "X" shaped filament can also be used.

[0121] The filamentary tow forming the hollow tubular member 4 preferably has a denier per filament of more than 3. It has been found that this denier per filament can form a tubular member 4 that is not too dense. Preferably the denier per filament is at least 4, more preferably at least 5. In a preferred embodiment, the filamentary tow forming the hollow tubular member 4 has a denier per filament of 4 to 10, more preferably 4 to 9. In one example, the filamentary tow forming the hollow tubular member 4 is formed from cellulose acetate and has 8Y40,000 tow containing 18% plasticizer such as triacetin.

[0122] The hollow tubular member 4 preferably has an inner diameter of more than 3.0 mm. A smaller inner diameter causes the speed of the aerosol moving through the mouthpiece 2 to the consumer's mouth to be faster than the desired speed, which causes the aerosol to become too warm, for example reaching a temperature above 40 °C or 45 °C. More preferably the hollow tubular member 4 has an inner diameter of more than 3.1 mm, even more preferably more than 3.5 mm or 3.6 mm. In one embodiment, the inner diameter of the hollow tubular member 4 is about 3.9 mm.

[0123] The hollow tubular member 4 preferably contains 15% to 22% by weight of a plasticizer. In the case of cellulose acetate tow, the plasticizer is preferably triacetin, but other plasticizers such as polyethylene glycol (PEG) can also be used. More preferably, the tubular member 4 contains 16% to 20% by weight of a plasticizer, for example, about 17% or about 19% by weight of a plasticizer.

[0124] The pressure drop or pressure difference (also referred to as suction resistance) of the mouthpiece, for example, of the portion of the article 1 downstream of the aerosol generating material 3, is preferably less than about 40 mmH20. Such a pressure drop has been found to allow a sufficient aerosol containing, for example, flavor compounds to move to the consumer through the mouthpiece 2. More preferably, the pressure drop of the mouthpiece 2 is less than about 32 mmH20. In some embodiments, the use of a mouthpiece 2 having a pressure drop of less than 31 mmH20, for example, about 29 mmH20, about 28 mmH20 or about 27.5 mmH20, particularly improves the aerosol. Separately or in addition to this, the mouthpiece pressure drop is at least 10 mmH20, preferably at least 15 mmH20 and more preferably at least 20 mmH20. In some embodiments, the mouthpiece pressure drop may be from about 15 mmH20 to 40 mmH20. These values cause the mouthpiece 2 to slow down the aerosol as it passes through the mouthpiece 2, thereby allowing time for the temperature of the aerosol to drop before reaching the downstream end 2b of the mouthpiece 2.

[0125] In this example, the mouthpiece 2 is adjacent to and in contact with the hollow tubular member 4 and includes a material body 6 upstream of the hollow tubular member 4. The material body 6 and the hollow tubular member 4 each substantially define an overall cylindrical outer shape and share a common longitudinal axis. The material body 6 is wrapped by a first plug wrapper 7. Preferably, the first plug wrapper 7 has a basis weight of 50 gsm, more preferably about 20 gsm to 40 gsm. Preferably, the first plug wrapper 7 has a thickness of 30 μm to 60 μm, more preferably 35 μm to 45 μm. Preferably, the first plug wrapper 7 is a non-porous plug wrapper having a gas permeability of less than, for example, 100 Gurley units, for example less than 50 Gurley units. However, in other embodiments, the first plug wrapper 7 may be a porous plug wrapper having a gas permeability of more than, for example, 200 Gurley units.

[0126] Preferably, the length of the material body 6 is less than about 15 mm. More preferably, the length of the material body 6 is less than about 10 mm. Additionally or alternatively, the length of the material body 6 is at least about 5 mm.

[0127] Preferably, the length of the material body 6 is at least about 6 mm. In some preferred embodiments, the length of the material body 6 is from about 5 mm to about 15 mm, more preferably from about 6 mm to about 12 mm, even more preferably from about 6 mm to about 12 mm, and most preferably about 6 mm, 7 mm, 8 mm, 9 mm or 10 mm. In this example, the length of the material body 6 is 10 mm.

[0128] In this example, the material body 6 is formed from filamentous tow. The tow used for the material body 6 in this example has 8.4 denier per filament (d.p.f.) and 21,000 total denier. Separately from this, the tow may have, for example, 9.5 denier per filament (d.p.f.) and 12,000 total denier. In this example, the tow includes plasticized cellulose acetate tow. The plasticizer used for the tow includes about 7% by weight of the tow. In this example, the plasticizer is triacetin. In other examples, different materials can be used to form the material body 6. For example, instead of tow, the material body 6 can also be formed from paper, similar to a conventional paper filter for use in a cigarette, for example.

[0129] Separately from this, the material body 6 can also be formed from tow other than cellulose acetate, such as polylactic acid (PLA), other materials described herein for filamentous tow, or similar materials. The tow is preferably formed from cellulose acetate. Regardless of whether it is formed from cellulose acetate or other materials, the tow preferably has at least 5, more preferably at least 6 and even more preferably at least 7 d.p.f. These values of denier per filament provide a tow with a narrow surface area that is relatively thick and coarse and that reduces the pressure drop of the mouthpiece compared to tows with smaller d.p.f. values. Preferably, the tow has a denier per filament of 12 d.p.f. or less, preferably 11 d.p.f. or less and even more preferably 10 d.p.f. or less in order to obtain a sufficiently uniform material body 6.

[0130] The total denier of the tow forming the material body 6 is preferably at most 30,000, more preferably at most 28,000, and even more preferably at most 25,000. These values of the total denier provide a tow that occupies a small proportion of the cross-sectional area of the mouthpiece 2, resulting in a lower pressure drop in the mouthpiece 2 than a tow having a higher total denier value. For the appropriate hardness of the material body 6, 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 to 12, and the total denier is 10,000 to 25,000. More preferably, the denier per filament is 6 to 10, and the total fineness is 11,000 to 22,000. Preferably, the cross-sectional shape of the filaments of the tow is a "Y" shape, but in other embodiments, other shapes such as an "X" shape filament with the same values of d.p.f. and total denier value provided herein can also be used.

[0131] In this example, the hollow tubular member 4 is the first hollow tubular member 4, and the mouthpiece includes a second hollow tubular member 8, also referred to as a cooling member, upstream of the first hollow tubular member 4. In this example, the second hollow tubular member 8 is upstream of the material body 6, adjacent to and in contact with it. The material body 6 and the second hollow tubular member 8 each substantially entirely define a cylindrical outer shape and share a common longitudinal axis. The second hollow tubular member 8 is formed from a plurality of paper layers that are wound parallel and joined to form a tubular member 8 with a seam. In this example, the first and second paper layers are provided for a double tube, but in other examples, three, four or more layers may be used to form a triple, quadruple or more stacked tube. Other structures, such as helically wound paper layers, cardboard tubes, tubes formed using a papier-mâché process, molded or extruded plastic tubes or the like can also be used. The second hollow tubular member 8 may be formed using the second plugrapper 9 and / or the stiff plugrapper and / or tipping paper 5 as described herein, which means that no separate tubular member is required. This rigid plugrapper and / or tipping paper is manufactured to have sufficient strength to withstand the axial compressive forces and bending movements that may occur during manufacture and while the article 1 is in use. For example, the rigid plugrapper and / or tipping paper may have a basis weight of 70 gsm to 120 gsm, more preferably 80 gsm to 110 gsm. Additionally or alternatively, the rigid plugrapper 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. The second plugrapper 9 and the tipping paper 5 desirably have values within these ranges to obtain an acceptable level of stiffness for the second hollow tubular member 8.

[0132] The second hollow tubular member 8 has a wall thickness of at least about 100 μm, about 1.5 mm or less, preferably 100 μm to 1 mm, more preferably 150 μm to 500 μm or about 300 μm, as measured in the same manner as the first hollow tubular member 4. In this example, the second hollow tubular member 8 has a wall thickness of about 290 μm.

[0133] Preferably, the length of the second hollow tubular member 8 is less than about 50 mm. More preferably, the length of the second hollow tubular member 8 is less than about 40 mm. Even more preferably, the length of the second hollow tubular member 8 is less than about 30 mm. Additionally or alternatively, the length of the second hollow tubular member 8 is preferably at least about 10 mm. Preferably, the length of the second hollow tubular member 8 is at least about 15 mm. In some preferred embodiments, the length of the second hollow tubular member 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 to about 26 mm, and most preferably about 25 mm. In this example, the length of the second hollow tubular member 8 is 25 mm.

[0134] The second hollow tubular member 8 is located around the mouthpiece 2 and defines a void within the mouthpiece, which acts as a cooling segment. The void serves as a chamber through which the heated volatile components generated by the aerosol generating material 3 flow. The second hollow tubular member 8 is hollow to provide a chamber for the deposition of the aerosol and yet has sufficient rigidity to withstand the axial compressive forces and bending movements that may occur during manufacture and while the article 1 is in use. The second hollow tubular member 8 physically moves between the aerosol generating material 3 and the body of material 6. The physical movement by the second hollow tubular member 8 provides a temperature gradient along the length of the second hollow tubular member 8.

[0135] Preferably, the mouthpiece 2 includes a cavity having an internal volume of more than 450 mm3. It has been found that a good aerosol can be formed by providing at least this volume of cavity. Since the heated volatile component becomes an aerosol that is too warm, sufficient space can be provided within the mouthpiece 2 by such a cavity size to cool the volatile component, and thus the aerosol generating material 3 would otherwise be exposed to a higher temperature. In this example, the cavity is formed by the second hollow tubular member 8, but in another configuration, it is also possible to form it within different parts of the mouthpiece 2. More preferably, the mouthpiece 2 is formed, for example, within the second hollow tubular member 8, has an internal volume of 500 mm3, and even more preferably more than 550 mm3, and further includes a cavity for improving the aerosol. In some examples, the internal cavity includes a volume of about 550 mm3 to about 750 mm3, such as about 600 mm3 or 700 mm3.

[0136] The second hollow tubular member 8 can be configured to provide a temperature difference of at least 40 °C between the heated and volatilized component entering the first upstream end of the second hollow tubular member 8 and the heated and volatilized component exiting the second downstream end of the second hollow tubular member 8. The second hollow tubular member 8 is preferably configured to provide a temperature difference of at least 60 °C, preferably at least 80 °C and more preferably at least 100 °C between the heated and volatilized component entering the first upstream end of the second hollow tubular member 8 and the heated and volatilized component exiting the second downstream end of the second hollow tubular member 8. This temperature difference across the length of the second hollow tubular member 8 protects the aerosol generating material 3 from the high temperature when the temperature-sensitive material body 6 is heated.

[0137] In another article, the second hollow tubular member 8 can also be replaced with another cooling member, for example, a member formed from a material body that passes the aerosol in the longitudinal direction and also performs the cooling function of the aerosol.

[0138] In this example, the first hollow tubular member 4, the material body 6, and the second hollow tubular member 8 are combined using a second plug wrapper 9 that is wound around all three of these sections. Preferably, the second plug wrapper 9 has a basis weight of less than 50 gsm, more preferably about 20 gsm to 45 gsm. Preferably, the second plug wrapper 9 has a thickness of 30 μm to 60 μm, more preferably 35 μm to 45 μm. The second plug wrapper 9 is preferably a non-porous plug wrapper having an air permeability of less than 100 Gurley units, for example less than 50 Gurley units. However, in another embodiment, the second plug wrapper 9 may be a porous plug wrapper having an air permeability of more than 200 Gurley units, for example.

[0139] In this example, the aerosol generating material 3 is wrapped in a wrapper 10. The wrapper 10 may be, for example, a paper or a foil wrapper supported by paper. In this example, the wrapper 10 is substantially air-impermeable. In another embodiment, the wrapper 10 preferably has an air permeability of less than 100 Gurley units, more preferably less than 60 Gurley units. It has been found that a wrapper with low air permeability, for example less than 100 Gurley units, more preferably less than 60 Gurley units, will result in improved aerosol formation in the aerosol generating material 3. Without wishing to be bound by any theory, this is presumably due to less loss of aerosol compounds through the wrapper 10. The air permeability of the wrapper 10 can be measured according to ISO 2965:2009 regarding the measurement of air permeability of materials used as cigarette paper, filter plug wrapper, and filter bond paper.

[0140] In this embodiment, the wrapper 10 includes aluminum foil. The aluminum foil has been found to be particularly effective in enhancing the formation of aerosol 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 backing paper. However, in another configuration, the aluminum foil may have other thicknesses, for example, a thickness of 4 μm to 16 μm. Also, the aluminum foil may not require a backing paper, but may have a backing material formed from other materials that help provide suitable tensile strength to the foil, or may not have a backing material at all. Metal layers or foils other than aluminum can also be used. The total thickness of the wrapper is preferably 20 μm to 60 μm, more preferably 30 μm to 50 μm, which is a thickness that can provide a wrapper with suitable structural integrity and heat transfer characteristics. The tension that can be applied to the wrapper until it breaks is more than 3,000 gram weights, for example, 3,000 to 10,000 gram weights or 3,000 to 4,500 gram weights.

[0141] The article has a ventilation level of about 75% of the aerosol drawn through the article. In another embodiment, the article may have a ventilation level of 50% to 80%, for example, 65% to 75% of the aerosol drawn through the article. These levels of ventilation assist in reducing the flow rate of the aerosol drawn through the mouthpiece 2, thereby allowing the aerosol to be cooled before it reaches the downstream end 2b of the mouthpiece 2. The ventilation is provided directly within the mouthpiece 2 of the article 1. In this example, the ventilation is provided within the second hollow tubular member 8, which has been found to be particularly beneficial in assisting the aerosol generation process. The ventilation is provided through the first and second parallel rows of perforations 12 formed in this case by laser drilling, at positions 17.925 mm and 18.625 mm respectively from the downstream suction end 2b of the mouthpiece 2. These perforations pass through the tipping paper 5, the second plug wrapper 9, and the second hollow tubular member 8. In another embodiment, the ventilation can also be provided at other locations within the mouthpiece, for example, within the material body 6 or the first tubular member 4.

[0142] In this example, the aerosol-forming material added to the aerosol-generating substrate 3 contains 14% by weight of the aerosol-generating substrate 3. Preferably, the aerosol-forming material contains at least 5% by weight, more preferably at least 10% by weight of the aerosol-generating substrate. Preferably, the aerosol-forming material contains less than 25% by weight, more preferably less than 20% by weight, for example 10% - 20%, 12% - 18% or 13% - 16% by weight of the aerosol-generating substrate.

[0143] Preferably, the aerosol-generating material 3 is provided as a cylindrical rod made of the aerosol-generating material. Regardless of the shape of the aerosol-generating material, the aerosol-generating material 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 25 mm to 50 mm, more preferably within the range of about 30 mm to 45 mm and even more preferably from about 30 mm to 40 mm.

[0144] The volume of the aerosol-generating material 3 provided may vary from about 200 mm3 to about 4300 mm3, preferably from about 500 mm3 to 1500 mm3, more preferably from about 1000 mm3 to about 1300 mm3. Providing these volumes of the aerosol-generating material, such as about 1000 mm3 to about 1300 mm3, has been advantageously shown to achieve excellent aerosols with better visibility and perception performance than the visibility and perception performance achieved with volumes selected from the lower end of that range.

[0145] The mass of the aerosol-generating material 3 provided may be more 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. It has been found advantageous that providing a larger mass of the aerosol-generating material results in better perception performance compared to aerosols generated from a tobacco material with a smaller mass.

[0146] Preferably, the aerosol-generating material or substrate is formed from the tobacco material described herein that contains tobacco components.

[0147] Figure 5a is a side cross-sectional view of another article 1' including a capsule-containing mouthpiece 2'. Figure 5b is a cross-sectional view of the capsule-containing mouthpiece shown in Figure 5a taken along line A-A' of Figure 5a. The article 1' and the capsule-containing mouthpiece 2' are the same as the article 1 and the mouthpiece 2 illustrated in Figure 4, except that the aerosol modifier is provided in the form of capsules 11 in the material body 6 in this example, and the oil-resistant first plugrapper 7' surrounds the material body 6. In other examples, the aerosol modifier may be provided in other forms such as a material injected into the material body 6, or may be provided on a thread, for example, a thread carrying a flavoring agent or other aerosol modifier, and this may also be arranged within the material body 6.

[0148] The capsule 11 may include a fragile capsule, for example, a capsule having a fragile solid shell surrounding a liquid payload. In this example, one capsule 11 is used. The capsule 11 is completely embedded within the material body. In other words, the capsule 11 is completely surrounded by the material body 6. In other examples, a plurality of fragile capsules, for example, two, three or more fragile capsules may be arranged within the material body. The length of the material body 6 may be made long enough to accommodate the required number of capsules. In examples where a plurality of capsules are used, the individual capsules may be the same as each other, or may differ in size and / or capsule payload. In other examples, a plurality of material bodies 6 each including one or more capsules may be provided.

[0149] The capsule 11 has a core-shell structure. In other words, the capsule 11 includes a shell that encapsulates a liquid agent such as a flavoring agent or other auxiliary agent, which may be one of the flavoring agents or aerosol modifiers described in this specification, for example. The shell of the capsule can be ruptured by the user to release the flavoring agent or other auxiliary agent into the material body 6. The first plugrapper 7' may include a barrier coating that makes the material of the plugrapper substantially airtight with respect to the liquid payload of the capsule 11. Separately or in addition to this, the second plugrapper 9 and / or the tipping paper 5 may include a barrier coating that makes the material of the plugrapper and / or the tipping paper substantially airtight with respect to the liquid payload of the capsule 11.

[0150] In this example, the capsule 11 is spherical and has a diameter of about 3 mm. In other examples, those of other shapes and sizes can also be used. The total weight of the capsule 11 may be in the range of about 10 mg to about 50 mg.

[0151] In this example, the capsule 11 is disposed at a longitudinally central position within the material body 6. That is, the capsule 11 is positioned such that its center is 4 mm away from both ends of the material body 6. In other examples, the capsule 11 may be disposed at a position other than the longitudinally central position of the material body 6, that is, closer to the downstream end of the material body 6 than the upstream end or closer to the upstream end of the material body 6 than the downstream end. Preferably, the mouthpiece 2' is configured such that the capsule 11 and the ventilation hole 12 are longitudinally offset from each other within the mouthpiece 2'.

[0152] The cross-section of the mouthpiece 2' is shown in FIG. 5b, which is along the line A-A' of FIG. 5a. FIG. 5b shows the capsule 11, the material body 6, the first and second plugrappers 7', 9 and the tipping paper 5. In this example, the capsule 11 is at the center of the longitudinal axis (not shown) of the mouthpiece 2'. The first and second plugrappers 7', 9 and the tipping paper 5 are concentrically arranged around the material body 6.

[0153] The fragile capsule 11 has a core-shell structure. That is, the encapsulating material or barrier material forms a shell around the core containing the aerosol modifier. The shell structure prevents the movement of the aerosol modifier during storage of the article 1’, but enables control of the release of the aerosol modifier, also referred to as the aerosol modifying agent, during use.

[0154] In some cases, the barrier material (also referred to as the encapsulating agent) is fragile. The capsule is crushed or otherwise broken or damaged by the user to release the encapsulated aerosol modifying agent. Typically, the capsule is broken just before heating is initiated, but the user can select when to release the aerosol modifying agent. The term “fragile capsule” means a capsule whose shell is broken by the pressure to release the core, and more specifically, the shell can be ruptured by the pressure applied by the user's finger when the user wants to release the core of the capsule.

[0155] In some cases, the barrier material is heat-resistant. That is, in some cases, the barrier does not rupture and melts or ceases to function at the temperature the capsule reaches during operation of the aerosol supply device. Specifically, by exposing the capsule located in the mouthpiece to a temperature in the range of, for example, 30°C to 100°C, the barrier material may be made to continue to hold the liquid core up to at least about 50°C to 120°C.

[0156] In another case, the capsule releases the core composition by swelling of the capsule, for example, melting the barrier material or rupturing the barrier material upon heating.

[0157] The total weight of the capsule may 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.

[0158] The total weight of the core formulation may 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.

[0159] The capsule according to the present invention comprises a core and a shell as described above. The capsule may exhibit a crushing strength of about 4.5 N to about 40 N, more preferably about 5 N to about 30 N, or about 28 N (e.g., about 9.8 N to about 24.5 N). The capsule crushing strength can be measured using a gauge that removes the capsule from the material body 6 and measures the force at which the capsule ruptures when pressed between two flat metal plates. A suitable measuring device is the Sauter FK 50 fall gauge having an attachment with a flat head, which can be used to crush the capsule against a flat hard surface having a surface similar to that of the attachment.

[0160] The capsule may be substantially spherical and may have a diameter of at least about 0.4 mm, 0.6 mm, 0.8 mm, 1.0 mm, 2.0 mm, 2.5 mm, 2.8 mm, or 3.0 mm. The diameter of the capsule may be less than about 10.0 mm, 8.0 mm, 7.0 mm, 6.0 mm, 5.5 mm, 5.0 mm, 4.5 mm, 4.0 mm, 3.5 mm, or 3.2 mm. Specifically, the diameter of the capsule may range from about 0.4 mm to about 10.0 mm, from about 0.8 mm to about 6.0 mm, from about 2.5 mm to about 5.5 mm, or from about 2.8 mm to about 3.2 mm. In some cases, the capsule may have a diameter of about 3.0 mm. These sizes are particularly suitable for incorporating the capsule into the articles described herein.

[0161] The cross-sectional area of the capsule 11 in its largest cross-sectional area region is less than 28%, more preferably less than 27%, even more preferably less than 25% of the cross-sectional area of the portion of the mouthpiece 2' where the capsule 11 is provided in some embodiments. For example, in the case of a spherical capsule with a diameter of 3.0 mm, the maximum cross-sectional area of the capsule is 7.07 mm2. In the case of the mouthpiece 2' with a circumference of 21 mm described herein, the material body 6 has an outer circumference of 20.8 mm, the radius of this member is 3.31 mm, corresponding to a cross-sectional area of 34.43 mm2. The cross-sectional area of the capsule is 20.5% of the cross-sectional area of the mouthpiece 2' in this example. As another example, when the diameter of the capsule is 3.2 mm, its maximum cross-sectional area is 8.04 mm 2 2. In this case, the cross-sectional area of the capsule is 23.4% of the cross-sectional area of the material body 6. A capsule having a maximum cross-sectional area less than 28% of the cross-sectional area of the portion of the mouthpiece 2' where the capsule 11 is provided has a reduced pressure drop compared to a capsule having a larger cross-sectional area, and an appropriate space for the aerosol remains around the capsule, and there is an advantage that a considerable amount of aerosol can pass through the mouthpiece 2' without the material body 6 removing the aerosol.

[0162] Preferably, the pressure drop or pressure difference (also referred to as suction resistance), measured as the open pressure drop (i.e., when the ventilation opening is open), decreases by less than 8 mmH2O when the capsule breaks. More preferably, the open pressure drop decreases by less than 6 mm, more preferably less than 5 mm. These values are measured as the average obtained from at least 80 articles produced with the same design. Such a small change in pressure drop means that it can be achieved regardless of whether the consumer chooses to break the capsule or not in other aspects of product design such as setting the correct ventilation level for a given product pressure drop.

[0163] The barrier material may include one or more of a gelling agent, a bulking agent, a buffer, a coloring agent, and a plasticizer.

[0164] Suitably, the gelling agent may be, for example, a polysaccharide or a cellulose-based gelling agent, gelatin, rubber, gel, wax, or a mixture thereof. Suitable polysaccharides include alginates, dextrans, maltodextrins, cyclodextrins, and pectins. Suitable alginates include, for example, salts of alginic acid, esterified alginates, or glyceryl alginate. Examples of salts of alginic acid include ammonium alginate, triethanolamine alginate, and sodium alginate, potassium alginate, calcium alginate, and magnesium alginate, which are alginates of Group I or II metal ions. Examples of esterified alginates include polypropylene glycol alginate and glyceryl alginate. In certain embodiments, the barrier material is sodium alginate and / or calcium alginate. Suitable cellulose-based materials include methylcellulose, ethylcellulose, hydroxyethylcellulose, hydroxypropylcellulose, carboxymethylcellulose, cellulose acetate, and cellulose ethers. The gelling agent may include one or more modified starches. The gelling agent may include carrageenan. Suitable rubbers include agar, gellan gum, gum arabic, pullulan gum, mannan gum, gutta-percha, tragacanth gum, karaya gum, lentil gum, acacia gum, guar, quince seed gum, and xanthan gum. Suitable gels include agar, agarose, carrageenan, floridean, and fructus sclerotiorum. Suitable waxes include carnauba wax. Optionally, the gelling agent may include carrageenan and / or gellan gum, and these gelling agents are particularly suitable for inclusion as gelling agents when the pressure required to break the resulting capsules is particularly suitable.

[0165] The barrier material may include one or more bulking agents such as starch, modified starch (such as oxidized starch), and sugar alcohols such as maltitol.

[0166] The barrier material may contain a colorant that simplifies the placement of the capsules within the aerosol generating device during the manufacturing process of the aerosol generating device. The colorant is preferably selected from among colorants and pigments.

[0167] The barrier material may further contain at least one buffer such as a citrate compound or a phosphate compound.

[0168] The barrier material may further contain at least one plasticizer, which is glycerin, sorbitol, maltitol, triacetin, polyethylene glycol, propylene glycol or another polyhydric alcohol having plasticity and in particular one of any monoacid, diacid or triacid type such as citric acid, fumaric acid, malic acid, etc. The amount of the plasticizer ranges from 1 to 30% by weight, preferably 2 to 15% by weight, and even more preferably 3 to 10% by weight of the total dry weight of the shell.

[0169] The barrier material also contains one or more filling materials. Suitable filling materials are starch derivatives such as dextrin, maltodextrin, cyclodextrin (alpha, beta or gamma), or cellulose derivatives such as hydroxypropylmethylcellulose (HPMC), hydroxypropylcellulose (HPC), methylcellulose (MC), carboxy-methylcellulose (CMC), polyvinyl alcohol, polyol or mixtures thereof. Dextrin is a preferred filling material. The amount of the filling material in the shell is at most 98.5% by weight, preferably 25 to 95% by weight, more preferably 40 to 80% by weight, and even more preferably 50 to 60% by weight of the total dry weight of the shell.

[0170] The capsule shell may additionally include a hydrophobic outer layer, which is for preventing the capsule from disintegrating due to moisture. The hydrophobic outer layer is preferably selected from the group consisting of waxes, particularly carnauba wax, candelilla wax or beeswax, carbowax, shellac (in an alcohol solution or an aqueous solution), ethyl cellulose, hydroxypropyl methylcellulose, hydroxypropyl cellulose, latex compositions, polyvinyl alcohol, or combinations thereof. More preferably, at least one of its moisture barrier agents is ethyl cellulose or a mixture of ethyl cellulose and shellac.

[0171] The capsule core contains an aerosol modifier. This aerosol modifier may be any volatile substance that changes at least one property of the aerosol. For example, the aerosol substance may change the pH, sensory properties, moisture content, delivery properties or flavor. In some cases, the aerosol modifier may be selected from acids, bases, water or flavoring agents. In some embodiments, the aerosol modifier contains one or more flavoring agents.

[0172] The flavoring agent is preferably anise, rose oil, vanilla, lemon oil, orange oil, mint flavoring agent, preferably peppermint oil and / or menthol and / or spearmint oil, peppermint oil from any species of the genus Mentha, or lavender, dill or anise.

[0173] In some cases, the flavoring agent contains menthol.

[0174] In some cases, the capsule may contain at least about 25% w / w of the flavoring agent (based on the total weight of the capsule), preferably at least about 30% w / w, 35% w / w, 40% w / w, 45% w / w or 50% w / w of the flavoring agent.

[0175] In some cases, the core may contain at least about 25% w / w of flavoring agent (based on the total weight of the core), preferably at least about 30% w / w, 35% w / w, 40% w / w, 45% w / w or 50% w / w of flavoring agent. In some cases, the core may contain about 75% w / w or less of flavoring agent (based on the total weight of the core), preferably about 65% w / w or less, 55% w / w, or 50% w / w of flavoring agent. Specifically, the capsule may contain flavoring agent in an amount in 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.

[0176] The capsule may contain at least about 2 mg, 3 mg or 4 mg of aerosol modifier, preferably at least about 4.5 mg of aerosol modifier, 5 mg of aerosol modifier, 5.5 mg of aerosol modifier or 6 mg of aerosol modifier.

[0177] In some cases, the consumable may contain at least about 7 mg of aerosol modifier, preferably at least about 8 mg of aerosol modifier, 10 mg of aerosol modifier, 12 mg of aerosol modifier or 15 mg of aerosol modifier.

[0178] Any suitable solvent may be used.

[0179] When the aerosol modifier contains a flavoring agent, the solvent may preferably contain short-chain or medium-chain fats and oils. For example, the solvent may contain triesters of glycerin such as C2-C12 triglycerides, preferably C6-C10 triglycerides or Cs-C12 triglycerides. For example, the solvent may contain medium-chain triglycerides (MCT-C8-C12), which may be derived from palm oil and / or coconut oil.

[0180] The esters may be formed with caprylic acid and / or capric acid. For example, the solvent may include medium-chain triglycerides that are caprylic acid triglyceride and / or capric acid triglyceride. For example, the solvent may include compounds identified by CAS registration with Nos. 73398-61-5, 65381-09-1, 85409-09-2. Such medium-chain triglycerides are odorless and tasteless.

[0181] The hydrophilic-lipophilic balance (HLB) of the solvent may be in the range of 9 to 13, preferably 1 to 12. The method for manufacturing the capsule may be extrusion or the like, and optionally followed by centrifugation and curing and / or drying. The content of International Application Publication No. 2007 / 010407A2 is incorporated herein by reference in its entirety.

[0182] In the above example, the mouthpieces 2, 2' each include a single material body 6. In other examples, either the mouthpiece of FIG. 4 or FIGS. 2a and 2b may include a plurality of material bodies. The mouthpieces 2, 2' may include a cavity between the material bodies.

[0183] In some examples, the mouthpieces 2, 2' downstream of the aerosol generating material 3 may include a wrapper, such as a first or second plug wrapper 7, 9, or tipping paper 5, which may contain an aerosol modifier as described herein. The aerosol modifier may be disposed on a surface facing inward or outward of the mouthpiece wrapper. For example, the aerosol modifier may be provided in a region of the wrapper such as the outward-facing surface of the tipping paper 5 that contacts the consumer's lips during use. By disposing the aerosol modifier on the outward-facing surface of the mouthpiece wrapper, the aerosol modifier may be transferred to the consumer's lips during use. The transfer of the aerosol modifier to the consumer's lips during use of the article may alter the sensory stimulation characteristics (e.g., taste) of the aerosol generated by the aerosol generating substrate 3 or otherwise provide the consumer with a different perceptual experience. For example, the aerosol modifier may impart a flavor to the aerosol emitted by the aerosol generating substrate 3. The aerosol modifier may be at least partially water-soluble and may be configured to migrate to the user via the consumer's saliva. The aerosol modifier may be volatile by heat emitted by the aerosol supply system. This facilitates the transfer of the aerosol modifier to the aerosol emitted by the aerosol generating substrate 3.

[0184] A non-combustible aerosol supply device is used to heat the aerosol generating material 3 of the articles 1, 1' described herein. The non-combustible aerosol supply device preferably includes a coil, which has been found to improve heat conduction to the articles 1, 1' compared to other configurations.

[0185] In some examples, the coil is configured to heat at least one conductive heating element during use, whereby thermal energy can be conducted from the at least one conductive heating element to the aerosol generating material, thereby causing heating of the aerosol generating material.

[0186] In some examples, the coil is configured to generate a varying magnetic field for passing through 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. A coil configured to generate a varying magnetic field for passing through one conductive heating element during use, thereby causing inductive heating of the at least one conductive heating element, may be referred to as an "inductive coil" or "inductor coil".

[0187] The device of the present invention includes one or more heating elements, such as one or more conductive heating elements, and the one or more heating elements are preferably arranged or can be arranged relative to the coil so that the one or more heating elements can be heated. The one or more heating elements may be fixed relative to the coil. Alternatively, at least one heating element, such as at least one conductive heating element, may be included in the articles 1, 1' for insertion into the heating region of the device, and the articles 1, 1' include the aerosol generating material 3 and are removed from the heating region after use. Alternatively, the device and such articles 1, 1' may include at least one heating element for each, such as at least one conductive heating element, and the coil causes heating of the one or more heating elements of the device and the article when the article is in the heating region.

[0188] In some examples, the coil is helical. In some examples, the coil surrounds at least a portion of the heating region of a device configured to contain the aerosol generating material. In some examples, the coil is a helical coil that surrounds at least a portion of the heating region.

[0189] In some examples, the device includes a conductive heating element that at least partially surrounds the heating region, and the coil surrounds at least a portion of the conductive heating element. In some examples, the conductive heating element is tubular. In some examples, the coil is an inductor coil.

[0190] In some examples, by using a coil, a non-combustion aerosol supply device can reach the operating temperature faster than a non-coil aerosol supply device. For example, as described above, a non-combustion aerosol supply device including a coil can reach the operating temperature such that the puff can be provided initially in less than 30 seconds, preferably less than 25 seconds, from the start of the device heating program. In some examples, the device can reach the operating temperature in about 20 seconds from the start of the device heating program.

[0191] Using a coil as described herein in a device to cause heating of the aerosol-generating material has been found to improve the aerosol produced. For example, consumers have reported that an aerosol emitted by a device including a coil as described herein is more sensorily similar to a factory made cigarette (FMC) than an aerosol produced by other non-combustion aerosol supply systems. Without wishing to be bound by any theory, this is presumably due to the reduced time to reach the heating temperature required when using a coil, the high heating temperature achieved when using a coil, and / or the ability of such a system to simultaneously heat a relatively large amount of aerosol-generating material by the coil, resulting in an aerosol having a temperature similar to that of an FMC aerosol. In an FMC product, the burning taper generates a hot aerosol that heats the tobacco of the tobacco rod behind the taper as the aerosol is drawn through the rod. This hot aerosol is understood to release flavor compounds from the tobacco of the rod behind the burning taper. A device including a coil as described herein can also heat an aerosol-generating material such as a tobacco material as described herein to release flavor compounds, resulting in an aerosol that has been reported to be more similar to an FMC aerosol.

[0192] By using an aerosol supply system including an induction coil that heats at least a part of a coil as described in this specification, for example, at least 200 °C, more preferably at least 220 °C, an aerosol can be generated from an aerosol generating material that has specific characteristics considered to be similar to those of an FMC product by the aerosol. For example, when an aerosol generating material containing nicotine is heated to at least 250 °C for 2 seconds using an induction heater, one or more of the following characteristics were observed: At least 10 μg of nicotine is aerosolized from the aerosol generating material. The weight ratio of the aerosol forming material to nicotine in the generated aerosol is at least about 2.5:1, preferably at least 8.5:1. At least 100 μg of the aerosol forming material is aerosolized from the aerosol generating material. The average particle size or droplet diameter in the generated aerosol is less than about 1000 nm. The aerosol density is at least 0.1 μg / cc.

[0193] In some cases, at least 10 μg of nicotine, preferably at least 30 μg or 40 μg of nicotine, is aerosolized from the aerosol generating material under an air flow of at least 1.50 L / m during those 2 seconds. 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 during those 2 seconds under an air flow of at least 1.50 L / m.

[0194] 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 generating material under an air flow of at least 1.50 L / m during those 2 seconds. Preferably, the aerosol forming material may contain glycerin or consist of glycerin.

[0195] The term "average particle size or droplet size" as defined herein means the average of the sizes of the solid or liquid components of the aerosol (i.e., the components suspended in the gas). When the aerosol contains suspended droplets and suspended solid particles, the term means the average of the sizes of all components combined.

[0196] In some cases, the average particle size or droplet size of the generated aerosol may be less than about 900 nm, 800 nm, 700 nm, 600 nm, 500 nm, 450 nm or 400 nm. In some cases, the average particle size or droplet size may be greater than about 25 nm, 50 nm or 100 nm.

[0197] In some cases, the density of the aerosol generated during the above period may be 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.

[0198] The non-combustion aerosol supply device is configured to heat the aerosol generating material 3 of articles 1, 1' to a maximum temperature of at least 160°C. Preferably, the non-combustion aerosol supply device is configured to heat the aerosol forming material 3 of articles 1, 1' to a maximum temperature of at least about 200°C, or at least about 220°C or at least about 240°C, more preferably at least about 270°C, at least once during the heating process by the non-combustion aerosol supply device.

[0199] By using an aerosol supply system that includes a coil as described herein, for example an induction coil that heats at least a part of the aerosol generating material to at least 200°C, more preferably at least 220°C, it is possible to generate a higher temperature aerosol from the aerosol generating material of the articles 1, 1' described herein than from previous devices that contribute to the generation of an aerosol that is considered closer to the FMC product when the aerosol exits the suction ends of the mouthpieces 2, 2'. For example, the maximum aerosol temperature measured at the suction end of the articles 1, 1' is preferably above 50°C, more preferably above 55°C, even more preferably above 56°C or 57°C. Additionally or alternatively, the maximum aerosol temperature measured at the suction end of the articles 1, 1' is less than 62°C, more preferably less than 60°C, even more preferably less than 59°C. In some embodiments, the maximum aerosol temperature measured at the suction end of the articles 1, 1' is preferably 50°C to 62°C, more preferably 56°C to 60°C.

[0200] Figure 6 shows an example of a non-combustion aerosol supply device 100 for generating an aerosol from an aerosol generating medium / material such as the aerosol generating material 3 of the articles 1, 1' described herein. Broadly, the device 100 may include a replaceable article 110 that contains an aerosol generating medium for generating an aerosol or other inhalable medium that is inhaled by a user of the device 100, for example the articles 1, 1' described herein. The device 100 and the replaceable article 110 together form a system.

[0201] The device 100 includes a housing 102 (in the form of an outer cover) that surrounds and houses the various components of the device 100. The device 100 has an opening 104 at one end through which the article 110 is inserted for heating by a heating assembly. In use, the article 110 is fully or partially inserted into the heating assembly where it is heated by one or more components of the heating assembly.

[0202] The device 100 in this example includes a first end member 106, which includes a lid 108 that is movable relative to the first end member 106 to close the opening 104 when the article 110 is not in a predetermined position. In FIG. 6, the lid 108 is shown in an open configuration, but the lid 108 may move to a closed configuration. For example, the user slides the lid 108 in the direction of arrow "B".

[0203] The device 100 may include an adjustment member 112 that can be operated by a user, such as a button or switch that, when pressed, activates the device 100. For example, the user may operate the switch 112 to turn on the device 100.

[0204] The device 100 also includes electrical components such as sockets / ports 114, which may accommodate cables for charging the battery of the device 100. The socket 114 may be a charging port such as a USB charging port.

[0205] FIG. 7 shows the device 100 of FIG. 6 with the outer cover 102 removed and no article 110 present. The device 100 defines a longitudinal axis 134.

[0206] As shown in FIG. 7, the first end member 106 is disposed at one end of the device, and the second end member 116 is disposed at the opposite end of the device 100. The first and second end members 106, 116 together at least partially define the end faces of the device 100. For example, the bottom face of the second end member 116 at least partially defines the bottom face of the device 100. The edge of the outer cover 102 also defines a part of the end face. In this example, the lid 108 also defines a part of the upper face of the device 100.

[0207] The end of the device closer to the opening 104 is close to the user's mouth during use and is thus also known as the proximal end (or inhalation end) of the device 100. During use, the user inserts an article 110 into the opening 104, operates the user control unit to start heating the aerosol generating material, and inhales the aerosol generated by the device. This causes the aerosol to flow through the device 100 along the flow path towards the proximal end of the device 100.

[0208] The other end of the device away from the opening 104 is the end that is away from the user's mouth during use and is thus also known as the distal end of the device 100. When the user inhales the aerosol generated by the device, the aerosol flows away from the distal end of the device 100.

[0209] The device 100 further includes a power source 118. The power source 118 may be a battery, such as a rechargeable battery or a non-rechargeable battery. Examples of suitable batteries include lithium batteries (such as lithium-ion batteries), nickel batteries (such as nickel-cadmium batteries), and alkaline batteries. The battery is electrically connected to the heating assembly and supplies power as needed and under the control of a controller (not shown) to heat the aerosol generating material. In this example, the battery is connected to a central support portion 120 that holds the battery 118 in a predetermined position.

[0210] The device further includes at least one electronic module. The electronic module 122 may include, for example, a printed circuit board (PCB). The PCB 122 may support a controller such as at least one processor and memory. The PCB 122 may also include one or more electrical tracks that electrically connect the various electronic components of the device 100 together. For example, the battery terminals are electrically connected to the PCB 122 so that power can be distributed throughout the device 100. The socket 114 may also be electrically coupled to the battery via an electrical track.

[0211] In the example of device 100, the heating assembly is an induction heating assembly and includes various members for heating the aerosol generating material of article 110 via an induction heating process. Induction heating is a process of heating a conductive object (such as a susceptor) by electromagnetic induction. The induction heating assembly may include an induction member, such as one or more inductor coils, and a device for passing a fluctuating current, such as an alternating current, through the induction member. The fluctuating current in the induction member generates a fluctuating magnetic field. The fluctuating magnetic field preferably penetrates a susceptor positioned relative to the induction member and generates eddy currents inside the susceptor. The susceptor has an electrical resistance to the eddy currents, and thus the susceptor is heated by Joule heating due to the flow of the eddy currents through this resistance. When the susceptor includes a ferromagnetic material such as iron, nickel or cobalt, heat is also generated by magnetic hysteresis loss in the susceptor, i.e., by a change in the orientation of the magnetic dipoles of the magnetic material as a result of alignment with the fluctuating magnetic field. In induction heating, heat is generated inside the susceptor, for example, as compared to heating by conduction, enabling rapid heating. Furthermore, there is no need for any physical contact between the dielectric heater and the susceptor, which can increase the degree of freedom in structure and application.

[0212] The induction heating assembly of the example of device 100 includes a susceptor structure 132 (hereinafter referred to as "susceptor"), a first inductor coil 124, and a second inductor coil 126. The first and second inductor coils 124, 126 are made of a conductive material. In this example, the first and second inductor coils 124, 126 are made of a Litz wire / cable, which is wound in a helical shape to provide helical inductor coils 124, 126. The Litz wire includes a plurality of individual wires, which are individually insulated and twisted together to form one wire. The Litz wire is designed to reduce skin effect losses in the conductor. In the example of device 100, the first and second inductor coils 124, 126 are made of a copper Litz wire with a rectangular cross-section. In other examples, the Litz wire may have a cross-section of other shapes such as circular.

[0213] The first inductor coil 124 is configured to generate a first alternating magnetic field for heating the first section of the susceptor 132, and the second inductor coil 126 is configured to generate a second alternating magnetic field for heating the second section of the susceptor 132. In this example, the first inductor coil 124 is adjacent to the second inductor coil 126 in a direction along the longitudinal axis 134 of the device 100 (i.e., the first and second inductor coils 124, 126 do not overlap). The susceptor structure 132 may include a single susceptor or two or more susceptors. The ends 130 of the first and second inductor coils 124, 126 are connected to the PCB 122.

[0214] Of course, in some examples, the first and second inductor coils 124, 126 may have at least one different characteristic from each other. For example, the first inductor coil 124 may have at least one different characteristic from the second inductor coil 126. More specifically, in one example, the first inductor coil 124 may have an inductance value different from that of the second inductor coil 126. In FIG. 7, the first and second inductor coils 124, 126 have different lengths such that the first inductor coil 124 is wound around a smaller section of the susceptor 132 than the second inductor coil 126. Accordingly, the first inductor coil 124 may have a different number of turns from the second inductor coil 126 (assuming that the spacing between individual turns is substantially the same). In yet another example, the first inductor coil 124 may be made of a different material from the second inductor coil 126. In some examples, the first and second inductor coils 124, 126 may be substantially the same.

[0215] In this example, the first and second inductor coils 124, 126 are shown wound in opposite directions. This is useful when the inductor coils are active at different times. For example, first the first inductor coil 124 may be activated to heat a first section / portion of the article 110, and then the second inductor coil 126 may be activated to heat a second section / portion of the article 110. Winding the coils in different directions aids in compensating for a decrease in the current induced in the inductor coils when used with a particular type of control circuit. In the device 100 of FIG. 7, the first inductor coil 124 is wound right-handed, and the second inductor coil 126 is wound left-handed. However, in another embodiment, the inductor coils 124, 126 may be wound in the same direction, or the first inductor coil 124 may be wound left-handed and the second inductor coil 126 may be wound right-handed.

[0216] The susceptor 132 of this example is hollow and thus defines a receiving portion in which an aerosol generating material is contained. For example, the article 110 is inserted into the susceptor 132. In this example, the susceptor 120 is tubular and has a circular cross-section.

[0217] The susceptor 132 may be made of one or more materials. Preferably, the susceptor 132 comprises carbon steel having a nickel or cobalt coating.

[0218] In some examples, susceptor 132 may include at least two materials, which can be heated at two different frequencies for selective aerosolization of at least two of its materials. For example, the first section of susceptor 132 (heated by the first induction coil 124) may include a first material, and the second section of susceptor 132 heated by the second induction coil 126 may include a different second material. In another example, the first section may include the first and second materials, and the first and second materials may be heated separately based on the operation of the first induction coil 124. The first and second materials may be adjacent along the axis defined by susceptor 132, or may form different layers within susceptor 132. Similarly, the second section may include the third and fourth materials, and these third and fourth materials may be heated separately based on the operation of the second induction coil 126. The third and fourth materials may be adjacent along the axis defined by susceptor 132, or may form different layers within susceptor 132. For example, the third material may be the same as the first material, and the fourth material may be the same as the second material. Alternatively, each of these materials may be different. The susceptor may include, for example, carbon steel or aluminum.

[0219] Device 100 of FIG. 7 is generally tubular and further includes an insulating member 128 that at least partially surrounds susceptor 132. Insulating member 128 may be composed of any insulating material, such as plastic. In this particular example, the insulating member is composed of polyetheretherketone (PEEK). Insulating member 128 helps insulate various components of device 100 from the heat emitted within susceptor 132.

[0220] Also, the insulating member 128 may support the first and second inductor coils 124, 126 either completely or partially. For example, as shown in FIG. 7, the first and second inductor coils 124, 126 are positioned around the insulating member 128 and contact the radially outer surface of the insulating member 128. In some examples, the insulating member 128 does not abut against the first and second inductor coils 124, 126. For example, a small gap may exist between the outer surface of the insulating member 128 and the inner surfaces of the first and second inductor coils 124, 126.

[0221] In a specific example, the susceptor 132, the insulating member 128, and the first and second inductor coils 124, 126 are coaxial about the central longitudinal axis of the susceptor 132.

[0222] FIG. 8 is a side view shown in a partial cross-section of the device 100. The outer cover 102 is shown in this example. The rectangular cross-sectional shape of the first and second inductor coils 124, 126 can be more clearly visualized.

[0223] The device 100 further includes a support 136 that engages with one end of the susceptor 132 to hold the susceptor 132 in a predetermined position. The support 136 is connected to the second end member 116.

[0224] The device also includes a second printed circuit board 138 associated with the adjustment member 112.

[0225] The device 100 further includes a second lid / cap 140 and a spring 142 disposed toward the distal end of the device 100. The spring 142 opens the second lid 140 so that it touches the susceptor 132. The user may open the second lid 140 to clean the susceptor 132 and / or the support 136.

[0226] Device 100 further includes an expansion chamber 144 that extends away from the proximal end of susceptor 132 toward the opening 104 of the device. Disposed at least partially within expansion chamber 144 is a retaining clip 146 that contacts and holds article 110 when received within device 100. Expansion chamber 144 is connected to end member 106.

[0227] FIG. 9 is an exploded view of device 100 of FIG. 8 with outer cover 102 omitted.

[0228] FIG. 10A is a partial cross-sectional view of device 100 of FIG. 8. FIG. 10B is an enlarged view of a region of FIG. 10A. FIGS. 10A and 10B show article 110 received within susceptor 132, which is sized such that its outer surface abuts the inner surface of susceptor 132. This enables heating to be most efficient. Article 110 in this example includes aerosol generating material 110a. Aerosol generating material 110a is positioned within susceptor 132. Article 110 may also include other members such as filter wrapper and / or cooling structure.

[0229] FIG. 10B shows that the outer surface of susceptor 132 is spaced from the inner surfaces of inductor coils 124, 126 by a distance 150 as measured in a direction perpendicular to the longitudinal axis 158 of susceptor 132. In one particular example, distance 150 is about 3 mm to 4 mm, about 3 to 3.5 mm, or about 3.25 mm.

[0230] FIG. 10B further shows that the outer surface of insulating member 128 is spaced from the inner surfaces of inductor coils 124, 126 by a distance 152 as measured in a direction perpendicular to the longitudinal axis 158 of susceptor 132. In one particular example, distance 152 is about 0.05 mm. In another example, that distance 152 is substantially 0 mm such that inductor coils 124, 126 abut and touch insulating member 128.

[0231] In one example, the wall thickness 154 of susceptor 132 is about 0.025 mm to 1 mm or about 0.05 mm.

[0232] In one example, the length of the susceptor 132 is about 40 mm to 60 mm, about 40 mm to 45 mm, or about 44.5 mm.

[0233] In one example, the wall thickness 156 of the insulating member 128 is about 0.25 mm to 2 mm, 0.25 mm to 1 mm, or about 0.5 mm.

[0234] In use, the articles 1, 1' described herein are inserted into a non-combustible aerosol supply device such as the device 100 described with reference to FIGS. 6-10. At least a portion of the mouthpieces 2, 2' of the articles 1, 1' protrude from the non-combustible aerosol supply device 100 and are placed in the user's mouth. The aerosol is generated by heating the aerosol generating material 3 using the device 100. The aerosol generated by the aerosol generating material 3 moves through the mouthpiece 2 to the user's mouth.

[0235] The articles 1, 1' described herein are particularly advantageous when used in a non-combustible aerosol supply device such as the device 100 described with reference to FIGS. 6-10. Particularly surprisingly, it has been found that the first tubular member 4 formed from the filamentous tow particularly significantly affects the temperature of the outer surfaces of the mouthpieces 2, 2' of the articles 1, 1'. For example, when the hollow tubular member 4 formed from the filamentous tow is wrapped in an outer wrapper, such as tipping paper 5, it has been found that the outer surface of the outer wrapper reaches a maximum temperature of less than 42 °C, preferably less than 40 °C, more preferably less than 38 °C or less than 36 °C during use.

[0236] The various embodiments described herein are provided merely as an aid to understanding the claimed features and for teaching. These embodiments are merely representative specific examples and are neither comprehensive nor exclusive. Of course, the advantages, embodiments, specific examples, functions, features, structures, and / or other aspects of the present disclosure should not be considered to limit the present disclosure to what is defined in the claims or to equivalents of the claims, but other embodiments may be utilized and modified without departing from the scope and / or spirit of the present disclosure. The various embodiments may suitably comprise, consist of, or consist essentially of the disclosed components, elements, features, parts, steps, means, and other combinations. The present disclosure also includes other inventions that are not currently claimed but may be claimed in the future.

[0237] Examples Experiments

[0238] Measurement of Nicotine and Aerosol-Forming Material Content The amounts of nicotine and aerosol-forming material may be measured using the following method.

[0239] Prepare an extract as follows. Weigh 2.5 ± 0.01 g of n-heptadecane into a weighing container and add it to a 5 L flask containing 400 - 500 mL of methanol. Mix the contents of the flask well to dissolve the n-heptadecane. Once dissolved, add methanol to correct to the correct volume of the volumetric flask to form an extraction solution.

[0240] Place the aerosol-forming material (pieces 5 - 10 mm wide) in a sealed plastic bag or airtight container prior to analysis. Mix well in the bag to ensure homogeneity before using the sample.

[0241] Weigh 1.0 g (±0.01 g) of the sample into a 150 mL Erlenmeyer flask. Add 1.00 mL of deionized water from a graduated pipette and let the mixture stand for 5 minutes. Add 50 mL of the extraction solution (see above) with a graduated dispenser. Stopper the flask and then shake it on an Orbital / horizontal shaker at 150 rpm for 3 hours.

[0242] Using a 5 mL plastic syringe, filter a portion of the extract through a 0.45 μm PVDF filter into a 2 mL GC vial.

[0243] Next, analyze the extract in the GC vial against a pre-prepared routine calibration solution using GC (see the following table for parameters).

[0244] Inject the sample into the injection port connected to the analytical column. A capillary GC column (Phenomenex ZB-WAXplus (30 m × 0.53 mm id × 1.00 μm)) and a flame ionization detector (FID) may be used for the analysis.

[0245]

Table 1

[0246]

Table 2

[0247]

Table 3

[0248]

Table 4

[0249] The final result of nicotine and aerosol-forming material [CNH(%)(dwb)] is expressed as a percentage of the dry sample corrected for moisture content using the following formula. The moisture content may be measured by the Karl-Fisher method.

[0250]

Chemical formula

[0251] The nicotine target % in this specification may be measured by analyzing the nicotine content of a series of samples (e.g., 20 - 40 samples) and then taking the average.

[0252] Measurement of moisture content In the compositions described herein, weight % refers to dry weight basis unless otherwise specified. Thus, all water present in the tobacco composition or any of its components is completely ignored for the purpose of measuring weight %. Thus, all water present in the tobacco composition or any of its components is completely ignored for the purpose of measuring weight %. However, other liquid components such as aerosol forming materials are included in the weight %. The moisture content of the tobacco compositions described herein may vary, for example, from 5 to 15 weight %. The moisture content can be measured by Karl-Fisher analysis.

[0253] Moisture content by Karl-Fisher analysis Karl-Fisher water analysis may be performed using a Mettler Toledo Karl Fisher V30 Volumetric Titrator. The background moisture content of the extraction solution (methanol) is measured prior to sample testing and the value is recorded for that analytical method.

[0254] Approximately 0.5 g of the material to be analyzed is accurately weighed (to the fourth decimal place) into a 100 mL Erlenmeyer flask and the weight is recorded. 50 mL of dry methanol is dispensed into the Erlenmeyer flask, which is then sealed and shaken on a flat-bed shaker (155 rpm) for 30 minutes. Approximately 2 mL of the sample extract is taken up in a syringe and injected into the titration apparatus (weight measured by back-weighing of the syringe). The results are reported as % moisture content of the sample by weight. The sample is measured three times and both the mean value and the standard deviation are reported.

[0255] Leaf material Nine blends consisting of leaf material were prepared. The amount of nicotine in each blend by weight of the blend was measured. The results are shown in Tables 5 and 5a.

[0256] [Table 5]

[0257] [Table 5a]

[0258] Comparative Example Six tobacco material recycled tobacco products (Recycled Tobacco 1 to 6) containing low nicotine recycled tobacco (LNRT) and / or medium nicotine recycled tobacco (MNRT) and / or high nicotine value recycled tobacco (HNRT) were prepared and then analyzed to confirm their nicotine contents. The results are shown in Table 6 and Table 6a.

[0259] [Table 6]

[0260] It should be noted that the nicotine content of the recycled tobacco material was 1.5 wt% or less.

[0261] [Table 6a]

[0262] It should be noted that the nicotine content of the recycled tobacco material was 1.5 wt% or less.

[0263] Examples 1 to 3 Three blends containing leaf tobacco, low nicotine recycled tobacco (LNRT) and / or medium nicotine recycled tobacco (MNRT) and / or high nicotine value recycled tobacco (HNRT) were prepared and then analyzed to confirm their nicotine contents. The results are shown in Table 7.

[0264] [Table 7]

[0265] Examples 4 - 21 Eighteen additional blends containing leaf tobacco and recycled tobacco material were prepared and their nicotine contents were analyzed. The results are shown in Tables 8, 9, 9a, 9b and 9c.

[0266]

Table 8

[0267]

Table 9

[0268]

Table 9a

[0269]

Table 9b

[0270]

Table 9c

[0271] The results indicate that the nicotine content of the tobacco composition can be prepared by combining the recycled tobacco material with leaf tobacco having a nicotine content of more than about 1.5 wt% of the leaf tobacco. Accordingly, various tobacco compositions having a wide range of nicotine concentrations can be produced.

[0272] Table 10 shows the outer surface temperature of article 1 described with reference to FIG. 4 herein when heated using device 100 described with reference to FIGS. 6 - 10B herein. The first, second and third temperature measurement probes were used as corresponding first, second and third positions along mouthpiece 2 of article 1. The first position (numbered position 1 in Table 10) was 4 mm from the downstream end 2b of mouthpiece 2, the second position (numbered position 2 in Table 10) was 8 mm from the downstream end 2b of mouthpiece 2, and the third position (numbered position 3 in Table 10) was 12 mm from the downstream end 2b of mouthpiece 2.

[0273] Therefore, the first position is the outer surface of the portion of the mouthpiece 2 where the first tubular member 4 is disposed, and the second and third positions are the outer surfaces of the portions of the mouthpiece 2 where the material body 6 is disposed.

[0274] The control article was tested as a comparison with the filamentous tobacco tubular member 4 described herein. A conventional helically paper-wound tube having the same structure as the second hollow tubular member 8 described herein but with a length of 6 mm instead of 25 mm was used instead of the filamentous tobacco tubular member 4.

[0275] The test was conducted for the first 5 puffs of the article. This is because the temperature gradually reaches the highest point by the 5th puff and then begins to decline from there, and the highest temperature is observed. Each sample was tested 5 times, and the temperature obtained thereby is the average of these 5 tests. The known Health Canada Intense puffing regime (a puff volume of 55 ml for 2 seconds every 30 seconds) was applied using a standard test device.

[0276] Surprisingly, as shown in the table below, it was found that by using the tubular member 4 formed from filamentous tobacco, the outer surface temperature of the mouthpiece 2 decreased at each puff and at all test positions of the mouthpiece 2 compared to the control article. The tubular member 4 formed from filamentous tobacco was particularly effective in reducing the temperature at the first probe position where the consumer's lips are located when using the article 1. In particular, the outer surface temperature of the mouthpiece 2 at the first probe position decreased by more than 7 °C in the first 3 puffs and by more than 5 °C in the 4th and 5th puffs.

[0277]

Table 10

[0278] Figure 11 illustrates a method of manufacturing an article for use in a non-combustion aerosol supply system. In step S101, first and second portions of an aerosol generating material, each containing an aerosol forming material, are positioned adjacent to respective first and second longitudinal ends of a mouthpiece rod. The mouthpiece rod includes a hollow tubular member rod formed from a filamentous tow disposed between the first and second ends. In this example, the hollow tubular member includes two lengths of tubular member 4 disposed between first and second material bodies 6. A corresponding second tubular member 8 is positioned at an outer end of each material body 6, adjacent to an outer end of these tubular members 8 where the first and second portions of the aerosol generating material are positioned. The mouthpiece rod is wrapped by a second plugrapper as described herein.

[0279] In step S102, the first and second portions of the aerosol generating material are connected to the mouthpiece rod. In this example, this is done by wrapping tipping paper 5 as described herein around at least a portion of each of the mouthpiece rod and the aerosol generating material 3. In this example, the tipping paper 5 extends longitudinally about 5 mm on the outer surface of each portion of the aerosol generating material 3.

[0280] In step S103, the hollow tubular member is cut to form first and second articles, each article including a mouthpiece which includes a portion of the hollow tubular member at the downstream end of the mouthpiece. In this example, the two lengths of first hollow tubular member 4 of the mouthpiece rod are cut at about half of their length to form substantially identical first and second articles.

[0281] The various embodiments described herein are provided only as an aid to understanding and teaching the claimed features. These embodiments are merely representative examples and are neither comprehensive nor exclusive. Of course, the advantages, embodiments, examples, functions, features, structures, and / or other aspects of the present disclosure should not be considered to limit the present disclosure to that defined in the claims or to equivalents of the claims, but rather other embodiments may be utilized and modified without departing from the scope and / or spirit of the present disclosure. The various embodiments may suitably comprise, consist of, or consist essentially of the disclosed components, elements, features, parts, steps, means, and other combinations. The present disclosure also includes other inventions that are not currently claimed but may be claimed in the future.

Claims

1. A tobacco composition comprising a tobacco component and an aerosol-forming material for use in an article for use with a non-combustion aerosol supply system, the composition comprising the aerosol-forming material in an amount of 10% to 30% by weight of the tobacco composition, the tobacco component comprising tobacco leaf material in an amount of 10% to 90% by weight of the tobacco component and reconstituted tobacco having a density of less than 700 mg / cc and a nicotine content of less than 1.5% by weight of the reconstituted tobacco, the nicotine content of the tobacco leaf material being more than 1.5% by weight of the tobacco leaf material, and the tobacco leaf being cut leaf tobacco.

2. A tobacco composition comprising a tobacco component for use in an article for use with a non-combustion aerosol supply system, the tobacco component comprising tobacco leaf material in an amount of 10% to 90% by weight of the tobacco component and reconstituted tobacco having a density of less than 700 mg / cc, the reconstituted tobacco having a nicotine content of less than 1.5% by weight of the reconstituted tobacco, the tobacco leaf material having a nicotine content of more than 1.5% by weight of the tobacco leaf material, the tobacco leaf material comprising the aerosol-forming material in an amount of 10% or less by weight of the tobacco leaf material, the tobacco composition comprising the aerosol-forming material in an amount of 10% to 30% by weight of the tobacco composition, and the tobacco leaf being cut leaf tobacco.

3. A tobacco composition comprising a tobacco component and an aerosol-forming material for use in an article for use with a non-combustion aerosol supply system, the composition comprising the aerosol-forming material in an amount of 10% to 30% by weight of the tobacco composition, the tobacco component comprising tobacco leaf material in an amount of 10% to 90% by weight of the tobacco component and reconstituted tobacco having a density of less than 700 mg / cc, the reconstituted tobacco having a nicotine content of less than 1.5% by weight of the reconstituted tobacco, the tobacco leaf material having a nicotine content of more than 1.5% by weight of the tobacco leaf material, the tobacco component comprising menthol in an amount of 3 mg to 16 mg, and the tobacco leaf being cut leaf tobacco.

4. The tobacco composition according to any one of claims 1 to 3, characterized in that the total amount of the aerosol-forming material is in an amount of 10% to 20% by weight of the tobacco composition.

5. The tobacco composition according to any one of claims 1 to 4, wherein the tobacco component contains tobacco leaf material in an amount of 11% to 48%, 12% to 46%, 13% to 44%, 14% to 42%, 15% to 40%, 16% to 38%, 17% to 36%, 18% to 34% or 19% to 32% by weight of the tobacco component.

6. The tobacco composition according to any one of claims 1 to 5, wherein the tobacco component contains tobacco leaf material in an amount of 15% to 25% by weight of the tobacco component.

7. The tobacco composition according to any one of claims 1 to 5, wherein the tobacco component contains tobacco leaf material in an amount of 35% to 45% by weight of the tobacco component.

8. The tobacco composition according to any one of claims 1 to 5, wherein the tobacco component contains tobacco leaf material in an amount of 55% to 65% by weight of the tobacco component.

9. The tobacco composition according to any one of claims 1 to 8, wherein the tobacco component has a nicotine content of 0.8% to 1.75% by weight of the tobacco component.

10. The tobacco composition according to any one of claims 1 to 9, wherein the tobacco leaf material has a nicotine content of more than 1.5% to 4% or less by weight of the tobacco leaf material.

11. The aerosol forming material is selected from the group consisting of glycerol, sorbitol, propylene glycol, triethylene glycol, lactic acid, diacetyl, triacetyl, triethylene glycol diacetate, triethyl citrate, ethyl myristate, isopropyl myristate, methyl stearate, dimethyl dodecanedioate, dimethyl tetradecanedioate, and mixtures thereof, The tobacco composition according to any one of claims 1 to 10.

12. The tobacco composition according to claim 11, wherein the aerosol forming material contains glycerol.

13. The tobacco composition according to any one of claims 1 to 12, wherein the recycled tobacco contains a paper recycled tobacco material.

14. The tobacco composition according to claim 13, wherein the tobacco component contains paper recycled tobacco material in an amount of 50% to 90% by weight of the tobacco component.

15. The tobacco composition according to any one of claims 1 to 14, wherein the tobacco component contains a tobacco material selected from the group consisting of extruded tobacco, bandcast tobacco, and mixtures thereof.

16. The tobacco composition according to any one of claims 1 to 15, characterized in that it contains a filler.

17. The tobacco composition according to claim 16, characterized in that it contains 5% to 10% of a filler.

18. The tobacco composition according to any one of claims 1 to 17, characterized in that the tobacco leaf material and the recycled paper tobacco material have a width of 0.5 mm to 2 mm or 0.6 mm to 1.75 mm or 0.7 mm to 1.5 mm.

19. Use of the tobacco composition according to any one of claims 1 to 18 in an article for use in a non-combustion aerosol supply system.

20. An article for use in an aerosol supply system comprising the tobacco composition according to any one of claims 1 to 18.

21. The article according to claim 20, characterized in that the article for use in an aerosol supply system comprises a rod of the tobacco composition.

22. The article according to claim 21, characterized in that the rod of the tobacco composition has a length of 10 mm to 100 mm.

23. The article according to claim 21 or 22, characterized in that the rod has a total weight of 250 mg to 350 mg.

24. The article according to any one of claims 20 to 23, characterized in that the tobacco composition is wrapped in a wrapper having an air permeability of less than 100 Coresta units.

25. The article for use in an aerosol supply system has an outer circumference of at least 19 mm The article according to any one of claims 20 to 24, characterized in that.

26. The article for use in an aerosol supply system has an outer circumference of 19 mm to 23 mm, and is the article according to any one of claims 20 to 25, characterized in that.

27. A system comprising the tobacco composition according to any one of claims 1 to 18, and a device arranged to heat the tobacco composition and generate an aerosol from the tobacco composition.

28. Including the aerosol supply system according to any one of claims 20 to 26 and an article for use therewith, wherein the device houses at least a part of the article for use in the aerosol supply system comprising the tobacco composition, heats the part of the article for use in the aerosol supply system comprising the tobacco composition, and is arranged to generate an aerosol from the tobacco composition. The system according to claim 27, characterized in that.

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