KR20240053036A - Aerosol-generating material comprising chitosan and additional binders - Google Patents

Abstract

The present invention provides an aerosol-generating material comprising (a) an aerosol former material, (b) chitosan, (c) an additional binder, and (d) a filler. The invention also provides methods for forming aerosol-generating materials; an aerosol-generating composition comprising an aerosol-generating material; A consumable for use in a non-flammable aerosol delivery device, the consumable comprising an aerosol generating composition; Non-flammable aerosol delivery systems including consumables and devices; A method of generating an aerosol using a non-flammable aerosol delivery system; and use of the aerosol-generating composition in consumables.

Description

Aerosol-generating material comprising chitosan and additional binders

The present invention relates to aerosol generation. In particular, the present invention relates to aerosol-generating materials, aerosol-generating compositions, consumables, non-flammable aerosol delivery systems, methods of generating aerosols, and methods of forming aerosol-generating materials.

Smoking articles such as cigarettes, cigars, etc. produce tobacco smoke by burning tobacco during use. Alternatives to these types of articles release the compounds from the substrate material by heating rather than burning, thereby releasing an inhalable aerosol or vapor. These may be referred to as non-combustible smoking articles, aerosol generating assemblies or non-combustible aerosol delivery systems.

One example of such a product is a heating device that releases compounds by heating but not burning solid aerosolizable materials. This solid aerosolizable material may, in some cases, include tobacco material. Heating volatilizes at least one component of the material, typically forming an inhalable aerosol. These products may be referred to as heat-not-burn device devices, tobacco heating devices, or tobacco heating products (THP). A variety of different arrangements are known for volatilizing at least one component of a solid aerosolizable material.

Another example is e-cigarette/cigarette heating product hybrid devices, also known as electronic cigarette hybrid devices. These hybrid devices contain a liquid source (which may or may not contain nicotine) that is vaporized by heating to produce an inhalable vapor or aerosol. The device additionally includes a solid aerosolizable material (which may or may not contain tobacco material), the components of which are entrained in an inhalable vapor or aerosol to create an inhalation medium.

In a first aspect, as an aerosol generating material,

(a) aerosol former material;

(b) chitosan;

(c) additional binders; and

(d) An aerosol-generating material is provided, comprising a filler.

In a second aspect, an aerosol-generating composition comprising the aerosol-generating material of the first aspect is provided.

In a third aspect, there is provided a consumable for use in a non-flammable aerosol-providing device, the consumable comprising the aerosol-generating composition of the second aspect.

In a fourth aspect, a non-flammable aerosol delivery system is provided comprising the consumable of the third aspect and a non-flammable aerosol delivery device.

In a fifth aspect, a method is provided for generating an aerosol using the non-flammable aerosol delivery system of the fourth aspect, the method comprising heating the aerosol generating material to a temperature of less than 350°C.

In a sixth aspect, use of the non-flammable aerosol delivery system of the fourth aspect is provided for generating an inhalable aerosol.

In a seventh aspect, a method of producing an aerosol generating material comprising:

(i) providing a slurry comprising aerosol former material, chitosan, additional binders, fillers, solvents, and any optional additional components of the aerosol generating material;

(ii) forming a layer of slurry; and

(iii) drying the slurry to form an aerosol-generating material.

Additional aspects provide methods for making aerosol-generating materials as described herein using a papermaking process, such as an air-laid papermaking process.

To the extent that they are combinable, features described herein in connection with one aspect of the invention are expressly disclosed in combination with each and every other aspect.

Further features and advantages of the invention will become apparent from the following description, which is given by way of example only, and with reference to the accompanying drawings.

1 shows a cross-sectional view of an example of a consumable product.
Figure 2 shows a perspective view of the consumable of Figure 1;
Figure 3 shows a cross-sectional elevation view of an example of a consumable product.
Figure 4 shows a perspective view of the consumable of Figure 3;
Figure 5 shows a perspective view of an example of a non-flammable aerosol delivery system.
Figure 6 shows a cross-sectional view of an example of a non-flammable aerosol delivery system.
Figure 7 shows a perspective view of an example of a non-flammable aerosol delivery system.

As mentioned above, as an aerosol generating material,

(a) aerosol former material;

(b) chitosan;

(c) additional binders; and

(d) An aerosol-generating material is provided, comprising a filler.

Surprisingly, it has been found that the use of chitosan can improve the retention rate of certain active compounds in the aerosol-generating material and improve the tensile strength of the aerosol-generating material.

Aerosol-generating materials can form part of an aerosol-generating composition. An aerosol-generating composition is a composition that is capable of generating an aerosol, for example, when heated, irradiated, or energized in any other way.

Aerosol-generating materials may alternatively be referred to as “monolithic solids.” Aerosol-generating materials may be non-fibrous or fibrous. In some embodiments, the aerosol-generating material can be a dry gel. The aerosol-generating material may be a solid material capable of retaining some fluid, such as a liquid, therein.

In some embodiments, the aerosol-generating material is a film.

In some embodiments, the aerosol generating material is an aerosol former material; Chitosan and additional binders; Solvents such as water; and fillers as essential elements, or are composed of these.

In some embodiments, the aerosol generating material is an aerosol former material; Chitosan and additional binders; water; and fillers as essential elements, or are composed of these.

In some embodiments, the aerosol-generating material is a hydrogel and contains less than about 20% water, calculated on a wet weight basis. In some cases, the hydrogel may comprise less than about 15%, 12%, or 10% water by weight calculated on a wet weight basis (WWB).

In some embodiments, the aerosol-generating material may contain less than about 20% water by weight, such as less than about 15%, 12%, or 10% water, calculated on a wet weight basis (WWB). For example, the aerosol generating material may contain about 1 to 15% water by weight, such as 3 to 12% water by weight (WWB).

Chitosan

The aerosol-generating material includes chitosan, which is a gelling/binder and can improve the retention rate of certain active compounds in the aerosol-generating material. For example, the use of chitosan can aid retention of aerosol former material (e.g., glycerol) within the aerosol generating material. This may help to reduce the stickiness of the surface of the aerosol-generating material, for example, when the surface of the aerosol-generating material comprises a high concentration of aerosol former material, thus enabling processing and/or handling of the aerosol-generating material. (during manufacturing/or subsequent processing of aerosol-generating materials).

The use of chitosan can also improve the tensile strength of aerosol-generating materials.

Chitosan is a copolymer of D-glucosamine and N-acetyl-D-glycosamine. Typically, chitosan is produced by N-deacetylation of chitin via alkaline hydrolysis.

In some embodiments, the aerosol-generating material is from about 0.01%, 0.025%, 0.05%, or 0.1% to about 10%, 5%, 4%, 3% by weight of the aerosol-generating material on a dry weight basis. %, 2%, 1% or 0.7% by weight of chitosan. For example, the aerosol-generating material may include chitosan in an amount of about 0.01 to 10 weight percent, such as 0.025 to 5 weight percent, 0.05 to 2 weight percent, 0.1 to 1 weight percent, or 0.1 to 0.7 weight percent.

additional binder

The aerosol-generating material further comprises chitosan as well as one or more additional binder(s).

The term “gelling agent” may also be used herein instead of “binder.”

In some embodiments, the additional binder includes a hydrocolloid.

In some embodiments, the additional binder is polysaccharide binders, such as alginate, pectin, starch or derivatives thereof, such as hydroxypropyl starch or carboxymethyl starch, sodium, cellulose or derivatives thereof, pullulan, carrageenan. , agar and agarose; gelatin; Gums such as xanthan gum, guar gum and acacia gum; Silica or silicone compounds, such as polydimethylsiloxane (PDMS) and sodium silicate; Clays such as kaolin; and one or more compounds selected from polyvinyl alcohol (or polysaccharide binders such as alginate, pectin, starch or derivatives thereof, such as hydroxypropyl starch or carboxymethyl starch, sodium, cellulose or derivatives thereof, pullulan, agar and agarose; gums such as xanthan gum, guar gum and silica compounds such as polydimethylsiloxane (PDMS) and sodium silicates; one or more compounds selected from polyvinyl alcohol).

Suitable modified starches (which may also be referred to as starch derivatives) include hydroxypropyl starch, sodium carboxymethyl starch, carboxymethyl starch, octenylsuccinic anhydride-modified starch, starch acetate, monostarch phosphate, distarch phosphate. , adipic acid transstarch, hydroxypropyl phosphate transstarch, phosphated phosphoric acid transstarch, acetylated phosphoric acid transstarch, and acetylated adipic acid transstarch, but are not limited thereto. In certain embodiments, the modified starch comprises one or more of hydroxypropyl starch, carboxymethyl starch, and sodium carboxymethyl starch (or is one or more of hydroxypropyl starch, carboxymethyl starch, and sodium carboxymethyl starch). In certain embodiments, the modified starch comprises one or more of hydroxypropyl starch and sodium carboxymethyl starch (or is one or more of hydroxypropyl starch and sodium carboxymethyl starch).

In some embodiments, the additional binder comprises (or is one or more polysaccharide binders) one or more polysaccharide binders. In some embodiments, the polysaccharide binder is selected from alginate, pectin, starch or derivatives thereof, such as sodium hydroxypropyl starch or carboxymethyl starch, cellulose or derivatives thereof.

In some embodiments, the additional binder comprises one or more compounds selected from guar gum, cellulose or derivatives thereof, and starch or derivatives thereof, such as hydroxypropyl starch or sodium carboxymethyl starch (or guar gum , cellulose or its derivatives, and starch or its derivatives, such as hydroxypropyl starch or carboxymethyl starch sodium).

Examples of cellulose binders (also referred to herein as cellulose derivatives) include hydroxymethyl cellulose, hydroxyethyl cellulose, hydroxypropyl cellulose, carboxymethylcellulose (CMC), hydroxypropyl methylcellulose (HPMC), methyl cellulose. , ethyl cellulose, cellulose acetate (CA), cellulose acetate butyrate (CAB), and cellulose acetate propionate (CAP). In some embodiments, cellulose or a derivative thereof is hydroxymethyl cellulose, hydroxyethyl cellulose, hydroxypropyl cellulose, carboxymethylcellulose (CMC), hydroxypropyl methylcellulose (HPMC), methyl cellulose, ethyl cellulose, cellulose acetate. (CA), cellulose acetate butyrate (CAB), and cellulose acetate propionate (CAP). In certain embodiments, the cellulose derivative is CMC.

In certain embodiments, the additional binder comprises one or more compounds selected from guar gum, CMC, methyl cellulose, and starch derivatives such as hydroxypropyl starch or sodium carboxymethyl starch (or guar gum, CMC, methyl cellulose , and starch derivatives such as hydroxypropyl starch or carboxymethyl starch sodium).

In certain embodiments, the additional binder comprises one or more compounds selected from guar gum, CMC, and starch derivatives, such as hydroxypropyl starch or sodium carboxymethyl starch (or guar gum, CMC, and starch derivatives, such as , hydroxypropyl starch or sodium carboxymethyl starch).

In certain embodiments, the additional binder comprises one or more compounds selected from guar gum, and a starch derivative, such as hydroxypropyl starch or sodium carboxymethyl starch (or guar gum, and a starch derivative, such as hydroxypropyl starch) one or more compounds selected from starch or sodium carboxymethyl starch).

In some embodiments, the additional binder is not crosslinked. The absence of cross-links in the additional binder may enable faster delivery of any optional active agent from the aerosol-generating material.

In some embodiments, the aerosol-generating material is from about 5%, 10%, 15%, 17%, or 20% to about 50%, 45%, 40% by weight of the aerosol-generating material on a dry weight basis. %, 35%, 30% or 25% by weight of the total amount of additional binder(s). In some such embodiments, the aerosol-generating material is added in a total amount of about 5 to 50%, 10 to 40%, 15 to 30%, 15 to 25%, or 17 to 25% by weight of the aerosol-generating material. Contains suitable binder(s). In certain embodiments, the total amount of additional binder(s) in the aerosol-generating material is from about 15 to about 25 weight percent.

In some embodiments, the aerosol-generating material is from about 5%, 10%, 15%, 17%, or 20% to about 50%, 45%, 40% by weight of the aerosol-generating material on a dry weight basis. %, 35%, 30% or 25% by weight of additional binders and chitosan in total amounts. In some such embodiments, the aerosol-generating material is added in a total amount of about 5 to 50%, 10 to 40%, 15 to 30%, 15 to 25%, or 17 to 25% by weight of the aerosol-generating material. Contains effective binders and chitosan. In certain embodiments, the total amount of additional binder and chitosan in the aerosol-generating material is from about 15 to about 25 weight percent.

Aerosol former material

The aerosol former material may include one or more ingredients capable of forming an aerosol. In some embodiments, the aerosol former material is glycerol, propylene glycol, diethylene glycol, triethylene glycol, tetraethylene glycol, 1,3-butylene glycol, erythritol, meso-erythritol, ethyl vanillate, ethyl lau. One of the following: ester, diethyl suberate, triethyl citrate, triacetin, diacetin mixture, benzyl benzoate, benzyl phenyl acetate, tributyrin, lauryl acetate, lauric acid, myristic acid, and propylene carbonate. Contains more than (or glycerol, propylene glycol, diethylene glycol, triethylene glycol, tetraethylene glycol, 1,3-butylene glycol, erythritol, meso-erythritol, ethyl vanillate, ethyl laurate, diethyl subbe citrate, triethyl citrate, triacetin, diacetin mixture, benzyl benzoate, benzyl phenyl acetate, tributyrin, lauryl acetate, lauric acid, myristic acid, and propylene carbonate).

In some embodiments, the aerosol former material is one or more polyhydric alcohols, such as propylene glycol, triethylene glycol, 1,3-butanediol, and glycerin; Esters of polyhydric alcohols, such as glycerol mono-, di- or triacetate; and/or aliphatic esters of mono-, di- or polycarboxylic acids, such as dimethyl dodecanedioate and dimethyl tetradecanedioate (or one or more polyhydric alcohols, such as propylene glycol, triethylene glycol , 1,3-butanediol and glycerin; esters of polyhydric alcohols, such as glycerol mono-, di- or triacetate; aliphatic esters of mono-, di- or polycarboxylic acids, such as dimethyl dodecane; dioate and dimethyl tetradecanedioate).

In certain embodiments, the aerosol former material comprises glycerol, optionally in combination with propylene glycol (or is glycerol in combination with propylene glycol).

The aerosol-generating material may include aerosol-forming material in a total amount of from about 1% to about 80% by weight of the aerosol-generating material on a dry weight basis. In some embodiments, the aerosol-generating material is from about 1%, 10%, 20%, 30%, 35%, 40%, or 45% to about 80%, 70% by weight of the aerosol-generating material. %, 65%, 60% or 55% by weight, such as about 50% total aerosol former material. In certain embodiments, the aerosol-generating material comprises aerosol former material in a total amount of about 35 to 65 weight percent, about 40 to 60 weight percent, or about 45 to 55 weight percent, such as about 50 weight percent.

filler

Aerosol-generating materials include fillers. The use of a filler can help reduce the stickiness of the aerosol-generating material, such as when high levels of aerosol-forming material are present.

In some embodiments, the aerosol-generating material includes filler in a total amount of at least 15%, such as about 15 to 40%, by weight of the aerosol-generating material on a dry weight basis. For example, in some embodiments, the aerosol-generating material includes filler in a total amount of about 20 to 40 weight percent or about 25 to 35 weight percent.

In some embodiments, the filler comprises one or more inorganic filler materials such as calcium carbonate, perlite, vermiculite, diatomaceous earth, colloidal silica, magnesium oxide, magnesium sulfate, magnesium carbonate, and suitable inorganic adsorbents such as molecular sieves. (or one or more inorganic filler materials such as calcium carbonate, perlite, vermiculite, diatomaceous earth, colloidal silica, magnesium oxide, magnesium sulfate, magnesium carbonate, and suitable inorganic adsorbents such as molecular sieves).

In some embodiments, the filler is one or more organic filler materials, such as wood pulp; tobacco pulp; hemp fiber; Starch and starch derivatives, such as maltodextrin; cellulose and cellulose derivatives, such as microcrystalline cellulose and/or nanocrystalline cellulose (or one or more organic filler materials, such as wood pulp; tobacco pulp; hemp fiber; cellulose and cellulose derivatives, such as microcrystalline cellulose and/or nanocrystalline cellulose).

As will be well understood by those skilled in the art, microcrystalline cellulose can be formed by depolymerizing cellulose by chemical processes (eg, using acids or enzymes). One exemplary method for forming microcrystalline cellulose involves acid hydrolyzing cellulose using an acid, such as HCl. The resulting cellulose after this treatment is crystalline (i.e., no amorphous regions remain). Suitable methods and conditions for forming microcrystalline cellulose are well known in the art.

In some embodiments, the aerosol-generating material does not include inorganic fillers. In some embodiments, the aerosol-generating composition does not include inorganic fillers.

In some embodiments, the aerosol-generating material does not include calcium carbonate, such as chalk.

In some embodiments, the aerosol-generating composition does not include calcium carbonate, such as chalk.

In certain embodiments, the aerosol-generating material includes a filler, and the filler is fibrous. For example, the filler can be a fibrous organic filler material such as wood pulp, tobacco pulp, hemp fiber, cellulose or cellulose derivatives. In some embodiments, the fibrous organic filler material can be wood pulp, hemp fiber, cellulose, or cellulose derivatives. In certain embodiments, the fibrous filler is wood pulp. Without wishing to be bound by theory, it is believed that including fibrous fillers in an aerosol-generating material can increase the tensile strength of the material. This may be particularly advantageous in instances where the aerosol-generating material is provided as a sheet, such as when the sheet of aerosol-generating material encloses a rod of aerosolizable material.

In certain embodiments, the filler includes (or is) wood pulp.

selective active substance

The aerosol-generating material or aerosol-generating composition may include an active agent.

In some cases, the aerosol generating material is from about 1%, 5%, 10%, 15%, 20% or 25% by weight to about 65%, 60%, 50%, 45% by weight. , 40%, 35%, or 30% by weight (calculated on a dry weight basis) of active material.

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

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

As mentioned herein, the active substance may comprise one or more components, derivatives or extracts of cannabis, such as one or more cannabinoids or terpenes.

In some embodiments, the active agent is cannabidiol (CBD), tetrahydrocannabinol (THC), tetrahydrocannabinolic acid (THCA), cannabidiolic acid (CBDA), cannabinol (CBN), cannabiger. Roll (CBG), cannabichromene (CBC), cannabicyclol (CBL), cannabivarin (CBV), tetrahydrocannabivarin (THCV), cannabidivarin (CBDV), cannabichromene ( CBCV), cannabigerovarine (CBGV), cannabigerol monomethyl ether (CBGM) and cannabielsoin (CBE), cannabicitran (CBT).

The active substance may comprise one or more cannabinoid compounds selected from the group consisting of cannabidiol (CBD) and tetrahydrocannabinol (THC).

The active substance may include cannabidiol (CBD).

Active substances may include nicotine and cannabidiol (CBD).

Active substances may include nicotine, cannabidiol (CBD), and tetrahydrocannabinol (THC).

As mentioned herein, the active substance may comprise or be derived from one or more herbal medicines or their constituents, derivatives or extracts. As used herein, the term "herbal medicine" includes, but is not limited to, extracts, leaves, bark, fibers, stems, roots, seeds, flowers, fruits, pollen, bark, integument, etc. Includes any material derived from plants. Alternatively, the material may contain active compounds naturally present in herbal medicines obtained synthetically. This material may be in the form of liquid, gas, solid, powder, dust, ground particles, granules, pellets, shreds, strips, sheets, etc. Examples of herbal medicines include tobacco, eucalyptus, star anise, hemp, cocoa, cannabis, fennel, lemongrass, peppermint, spearmint, rooibos, chamomile, and flax ( flax, ginger, ginkgo biloba, hazel, hibiscus, laurel, licorice (liquorice), matcha, mate, orange peel. skin, papaya, rose, sage, tea (e.g. green or black tea), thyme, clove, cinnamon, coffee, aniseed (anise), basil, bay laurel. Bay leaves, cardamom, coriander, cumin, nutmeg, oregano, paprika, rosemary, saffron, lavender, lemon peel, mint, juniper, Elderflower, vanilla, wintergreen, beefsteak plant, curcuma, turmeric, sandalwood, cilantro, bergamot, orange blossom ( orange blossom, myrtle, cassis, valerian, pimento, mace, damien, marjoram, olive, lemon balm balm, lemon basil, chive, carvi, verbena, tarragon, geranium, mulberry, ginseng, theanine, theacrine (theacrine), maca, ashwagandha, damiana, guarana, chlorophyll, baobab, or any combination thereof. Mint can be chosen from the following mint varieties: Mentha arvensis, Mentha c.v., Mentha niliaca, Mentha piperita, Mentha piperita citrata c.v. (Mentha piperita citrata c.v.), Mentha piperita c.v., Mentha spicata crispa, Mentha cordifolia, Mentha longifolia, Mentha suablens Mentha suaveolens variegata, Mentha pulegium, Mentha spicata c.v. and Mentha suaveolens.

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

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

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

In some embodiments, the aerosol-generating material does not include tobacco fibers.

In some embodiments, the aerosol-generating material does not include tobacco material.

In some embodiments, the aerosol-generating material is substantially free of tobacco material.

In some embodiments, the aerosol-generating material does not include an active agent.

In some embodiments, the aerosol-generating material or aerosol-generating composition does not include caffeine.

In some embodiments, the aerosol-generating material or aerosol-generating composition does not include components, derivatives or extracts of cannabis.

In some embodiments, the aerosol-generating material or aerosol-generating composition does not include caffeine, or any constituent, derivative or extract of cannabis.

flavor

In some embodiments, the aerosol-generating material or aerosol-generating composition includes a flavor.

In some cases, the aerosol generating material is from about 1%, 5%, 10%, 15%, 20% or 25% by weight to about 65%, 60%, 50%, 45% by weight. , 40% by weight, 35% by weight, or 30% by weight (calculated on a dry weight basis) of flavor.

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

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

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

Other functional materials

In some embodiments, the aerosol-generating material or aerosol-generating composition may further include one or more other functional materials. One or more other functional ingredients may include one or more of pH adjusters, colorants, preservatives, stabilizers, and/or antioxidants.

Aerosol-generating materials may include acids. The acid may be an organic acid. In some of these embodiments, the acid may be at least one of a monoprotic acid, a diprotic acid, and a triprotic acid. In some such embodiments, the acid may contain at least one carboxyl functional group. In some such embodiments, the acid can be at least one of alpha-hydroxy acids, carboxylic acids, dicarboxylic acids, tricarboxylic acids, and keto acids. In some such embodiments, the acid can be an alpha-keto acid.

In some such embodiments, the acid can be at least one of succinic acid, lactic acid, benzoic acid, citric acid, tartaric acid, fumaric acid, levulinic acid, acetic acid, malic acid, formic acid, sorbic acid, benzoic acid, propanoic acid, and pyruvic acid.

Suitably the acid is lactic acid. In other embodiments, the acid is benzoic acid. In other embodiments, the acid can be an inorganic acid. In some of these embodiments, the acid may be an inorganic acid. In some such embodiments, the acid can be at least one of sulfuric acid, hydrochloric acid, boric acid, and phosphoric acid. In some embodiments, the acid is levulinic acid.

Including an acid is particularly preferred in embodiments where the aerosol-generating material includes nicotine. In these embodiments, the presence of acid can stabilize dissolved species in the slurry from which the aerosol-generating material is formed. The presence of acid can reduce or substantially prevent evaporation of nicotine during drying of the slurry, thereby reducing loss of nicotine during manufacturing.

Aerosol-generating materials may include colorants. The addition of colorants can change the visual appearance of the aerosol-generating material. The presence of colorants in the aerosol-generating material can enhance the visual appearance of the aerosol-generating material and aerosol-generating composition. By adding a colorant to the aerosol-generating material, the aerosol-generating material can be color-matched to other components of the aerosol-generating composition or to other components of the consumable containing the aerosol-generating material.

Various colorants can be used depending on the desired color of the aerosol generating material. The color of the aerosol-generating material may be, for example, white, green, red, purple, blue, brown or black. Additionally, other colors are expected. Natural or synthetic colorants may be used, such as natural or synthetic dyes, food-grade colorants, and pharmaceutical-grade colorants. In certain embodiments, the colorant is caramel, which can impart the aerosol-generating material with a brown appearance. In such embodiments, the color of the aerosol-generating material may be similar to the color of other ingredients (such as tobacco materials) in the aerosol-generating composition comprising the aerosol-generating material. In some embodiments, the addition of a colorant to the aerosol-generating material renders the aerosol-generating material visually indistinguishable from other components of the aerosol-generating composition.

The colorant may be incorporated during formation of the aerosol-generating material (e.g., when forming a slurry comprising the materials forming the aerosol-generating material), or the colorant may be incorporated into the dried aerosol-generating material after formation of the aerosol-generating material (e.g., The colorant can be applied (by spraying it onto the aerosol-generating material).

In some embodiments, the aerosol-generating material is formed as a sheet. In some cases, a sheet of aerosol generating material may be included in a non-flammable aerosol delivery system or consumable in sheet form. Sheets of aerosol-generating material may be included as flat sheets, gathered or bundled sheets, crimped sheets, or rolled sheets (i.e., in the form of tubes). In some such cases, the aerosol generating material of these embodiments may be included in the system/consumable as a sheet, such as a sheet surrounding a rod of aerosolizable material (eg, tobacco). For example, a sheet of aerosol-generating material can be formed on wrapping paper surrounding an aerosolizable material, such as a cigarette. In other cases, the sheet may be shredded and then incorporated into an assembly and suitably mixed into an aerosolizable material, such as cut tobacco.

In some cases, the aerosol-generating material may be in the form of a sheet or layer having a thickness of about 0.015 mm to about 1.0 mm. Suitably, the thickness may range from about 0.05 mm, 0.1 mm or 0.15 mm to about 0.5 mm or 0.3 mm, such as from 0.1 to 3 mm or 0.15 to 3 mm. Materials with a thickness of 0.2 mm may be particularly suitable. The aerosol-generating material may include more than one layer, and the thickness described herein refers to the total thickness of those layers.

If the aerosol-generating material is too thick, heating efficiency may be impaired. This has a negative impact on power consumption during use. Conversely, if the aerosol-generating material is too thin, manufacturing and handling may be difficult; Very thin materials are more difficult to cast and can be brittle, compromising aerosol formation during use.

The thickness specified herein is the average thickness for the material. In some cases, the aerosol generating material thickness may vary by less than 25%, 20%, 15%, 10%, 5% or 1%.

In some embodiments, an aerosol-generating material in sheet form can have sufficient tensile strength to be wound onto or unwound from a bobbin without breaks. In some examples, the aerosol-generating material in sheet form has a tensile strength of at least about 250 N/m.

The aerosol-generating material may have any suitable areal density, such as from 30 g/m2 to 120 g/m2. In some cases, the aerosol generating material will have a mass per unit area of 80 to 120 g/m2, or about 70 to 110 g/m2, or especially about 90 to 110 g/m2, or suitably about 100 g/m2. (This ensures that it will not separate easily when mixed with tobacco such as cut tobacco). These areal densities may be particularly suitable if the aerosol-generating material is included in the consumable/system in sheet form or as shredded sheets (discussed further herein below).

Aerosol-generating composition

One aspect provides an aerosol-generating composition comprising an aerosol-generating material as defined herein.

In some embodiments, the aerosol-generating composition further includes tobacco material. In these embodiments, the tobacco material does not form part of the aerosol-generating material. That is, the tobacco material is present in the aerosol-generating composition separately from the aerosol-generating material.

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

Tobacco used to make tobacco material may be of any type, such as single grades or blends, cut or whole leaf, including Virginia and/or Burley and/or Oriental. It may be a suitable cigarette. It may also be tobacco particle 'fines' or powder, puffed tobacco, stalks, puffed stalks, and other processed stalk materials, such as rolled stalks. The tobacco material may be ground tobacco or recycled tobacco material. Recycled tobacco material may comprise tobacco fibers and may be formed by casting, i.e. by a Fourdrinier-based papermaking-type approach with the addition of tobacco extract again, or by extrusion.

In some embodiments, the amount of aerosol former material in the aerosol-generating composition is from about 5 to about 30% by weight of the aerosol-generating composition on a dry weight basis. For example, in some embodiments, the aerosol-generating composition includes an aerosol former material in an amount of about 10 to about 20 weight percent, or about 13 to about 17 weight percent. In some embodiments, the aerosol-generating composition includes an aerosol former material in an amount of about 15% by weight. This amount includes any aerosol former material present in the aerosol generating composition, such as aerosol former material provided on the aerosol generating material and aerosol former material loaded on the tobacco material.

Cut rag tobacco blends, which can typically be used alone in conventional combustible smoking articles such as cigarettes, have been found to be unsuitable for use in non-combustible aerosol delivery devices. Without wishing to be bound by theory, it is believed that cut filler tobacco blends for use in cigarettes typically cannot be loaded with sufficient aerosol former material to provide the desired inhalable aerosol when heated by a non-flammable aerosol providing device. .

Previous attempts to solve this problem have involved replacing some or all of the cut tobacco in typical combustible tobacco blends with recycled tobacco, such as paper recycled tobacco. Paper recycled cigarettes can typically contain a greater proportion of aerosol former material. However, tobacco blends containing a high percentage of paper recycled tobacco may have undesirable sensory properties when heated by a non-flammable aerosol delivery device.

Providing an aerosol-generating material with a high aerosol former material content in combination with the tobacco material, thereby producing an acceptable aerosol without requiring the presence of large amounts of reconstituted tobacco (thereby reducing the undesirable sensory properties associated with reconstituted tobacco) reduction) is possible.

In some embodiments, the tobacco material includes or consists of lamina tobacco (e.g., cut filler tobacco) that provides desirable sensory properties.

In some embodiments, the tobacco material includes regenerated tobacco in an amount of less than about 50%, 30%, 10%, 5%, or 1% by weight, based on the dry weight of the tobacco material. In some embodiments, the tobacco material includes substantially no recycled tobacco.

Tobacco material can be in any format, but is typically fine-cut (e.g., cut into narrow shreds). Shredded tobacco material can advantageously be blended with aerosol-generating material to provide an aerosol-generating composition with an even distribution of tobacco material and aerosol-generating material throughout the aerosol-generating composition.

In some embodiments, the tobacco material includes one or more of ground tobacco, tobacco fiber, tobacco, extruded tobacco, tobacco stems, regenerated tobacco, and/or tobacco extract. When heated by a non-flammable aerosol delivery system, it is possible to use relatively large amounts of lamina tobacco in the aerosol generating composition and still provide an acceptable aerosol. Lamina tobacco typically offers excellent organoleptic properties. In examples, the tobacco material includes thin lamina tobacco in an amount of at least about 50%, 60%, 70%, 80%, 85%, 90%, or 95% by weight of the tobacco material. In certain examples, the tobacco material includes cut tobacco in an amount of at least about 50%, 60%, 70%, 80%, 85%, 90%, or 95% by weight of the tobacco material.

The tobacco used to make the tobacco material may be any suitable tobacco, such as single grades or blends, cut or leaf, including Virginia and/or Burley and/or Oriental.

Tobacco materials may typically be present in the aerosol-generating composition in an amount of about 50 to 95%, or about 60 to 95%, or about 70 to 90%, or about 80 to 90% by weight of the aerosol-generating composition. .

In some embodiments, the aerosol-generating material is present in the aerosol-generating composition in an amount of about 5 to 40%, 5 to 30%, 5 to 25%, or 10 to 25% or 10 to 20% by weight. . Surprisingly, by configuring the aerosol generating material to have a relatively high aerosol former material content, relatively small amounts of aerosol generating material (e.g., about 10 to 20 weight percent) can still be used with a non-flammable aerosol delivery system to produce desirable aerosols. It can be used in aerosol-generating compositions while achieving this.

In some embodiments, the aerosol-generating composition consists of, or consists essentially of, an aerosol-generating material and a tobacco material.

In some embodiments, the tobacco material itself includes an aerosol former material. Typically, the tobacco material includes shredded tobacco and the aerosol former material is loaded onto the shredded tobacco. In examples, the tobacco material includes an aerosol former material in an amount of about 1 to 10 percent by weight of the tobacco material, such as about 3 to 6 percent by weight. Aerosol former materials as defined above in relation to aerosol-generating materials are also suitable for use in tobacco materials.

The aerosol-generating material may be present in the aerosol-generating composition in any suitable form. In examples, the aerosol biomaterial is in sheet form. In examples, the aerosol-generating material is present as a shredded sheet (eg, the aerosol-generating composition includes shreds of the aerosol-generating material). In examples, the aerosol-generating material is present as a shredded sheet and is blended with shredded and/or shredded tobacco material, such as where the aerosol-generating material and the tobacco material are in similar form. Advantageously, providing both the aerosol-generating material and the tobacco material as shreds/chopped portions enables an aerosol-generating composition blend with an even distribution of the aerosol-generating material and the tobacco material throughout the aerosol-generating composition.

In examples, the aerosol-generating material has an areal density that is about 90-110% of the areal density of any tobacco material in the aerosol-generating composition. That is, the aerosol-generating material and the tobacco material have similar areal densities. Constructing the aerosol-generating material and the tobacco material to have similar areal densities, when typically provided as shredded sheets, allows for better blending of the aerosol-generating material and the tobacco material. For example, aerosol-generating materials in the form of shredded sheet and cut grass cigarettes having similar areal densities can be blended to provide a more homogeneous aerosol-generating composition (e.g., better distribution of each component throughout the aerosol-generating composition). there is.

Shredded tobacco (e.g., cut tobacco) has a cut width, typically expressed in cuts per inch (CPI), which refers to the width of the tobacco shreds. In some instances where the tobacco material is shredded (e.g., where the tobacco material includes cut filler tobacco) and the aerosol-generating material is a shredded sheet, the cut width of the aerosol-generating material is about 90 to 110% of the cut width of the cut filler tobacco. That is, the aerosol-generating material and the tobacco material have similar cut widths or crush widths. Configuring the aerosol-generating material and the tobacco material to have similar cut widths allows for better blending of the aerosol-generating material and the tobacco material. For example, shredded aerosol-generating material sheets and cut filler tobacco having similar cut widths can be blended to provide a more homogeneous aerosol-generating composition (e.g., better distribution of each component throughout the aerosol-generating composition). The tobacco material may have a length of 1 to 4 cm.

support

Aerosol-generating materials for use in aerosol generation may be present on or in a support to form a substrate. The support may be or include, for example, paper, card, paperboard, cardboard, reconstituted material, plastic material, ceramic material, composite material, glass, metal or metal alloy. In some embodiments, the support includes a susceptor. In some implementations, the susceptor is embedded within the material. In some alternative embodiments, the susceptor is on one or both sides of the material.

The aerosol-generating composition may include a carrier, on which an aerosol-generating material is provided. The carrier functions as a support on which the aerosol generating material layer is formed, facilitating manufacturing. The carrier may provide tensile strength to the aerosol-generating material layer to facilitate handling.

In some cases, the carrier may be formed from materials selected from metal foil, paper, carbon paper, greaseproof paper, ceramic, carbon allotropes such as graphite and graphene, plastic, cardboard, wood, or combinations thereof. there is. In some cases, the carrier may include or be composed of tobacco material, such as a sheet of recycled tobacco. In some cases, the carrier may be formed from materials selected from metal foil, paper, cardboard, wood, or combinations thereof. In some cases, the carrier itself may be a laminate structure comprising layers of materials selected from the foregoing lists. In some cases, the carrier may also function as a flavor carrier. For example, the carrier may be impregnated with flavor or tobacco extract.

In some cases, the carrier may be magnetic. This functionality can be used to secure the carrier to a non-flammable aerosol delivery device in use, or can be used to create specific aerosol generating material shapes. In some cases, the aerosol-generating composition may include one or more magnets that can be used to secure the material to the induction heater during use.

In some cases, the carrier may be substantially or completely impermeable to gases and/or aerosols. This prevents aerosols or gases from passing through the carrier layer, thereby controlling the flow and ensuring that it is delivered to the user. It may also be used, for example, to prevent condensation or other deposition of in-use gases/aerosols onto the surfaces of heaters provided in the aerosol generating assembly. Accordingly, in some cases, consumption efficiency and cleanliness can be improved.

In some cases, the surface of the carrier abuts the aerosol-generating material may be porous. For example, in one case, the carrier includes paper. Porous carriers, such as paper, have been found to be particularly suitable; The porous (eg paper) layer adjoins the aerosol generating material layer and forms a strong bond. The aerosol-generating material may be formed by drying the slurry, and without being bound by theory, it is believed that the slurry partially impregnates the porous carrier (e.g., paper) such that the carrier is partially bound to the aerosol-generating material. This provides a strong binding between the aerosol generating material and the carrier.

In some embodiments, the aerosol-generating material can be laminated to a carrier, such as a paper sheet.

In some embodiments, when the aerosol-generating material is formed from a slurry as described herein, a layer of slurry may be formed on a carrier, such as a paper sheet.

Additionally, surface roughness can contribute to the strength of the bond between the aerosol-generating material and the carrier. The paper roughness (relative to the surface contacting the carrier) is suitably in the range of 50 to 1000 Bekk seconds, suitably 50 to 150 Bekk seconds, suitably 100 Bekk seconds (measured over a pneumatic pressure interval of 50.66 to 48.00 kPa). You can. (Bekk smoothness tester is an instrument used to determine the smoothness of a paper surface, in which air at a certain pressure leaks between a smooth glass surface and a paper sample, and the time (in seconds) for a fixed volume of air to seep between these surfaces This is "Bekk smoothness".)

Conversely, the surface of the carrier facing away from the aerosol-generating material can be arranged to contact the heater, with a smoother surface providing more efficient heat transfer. Accordingly, in some cases, the carrier is arranged to have a rougher side facing the aerosol-generating material and a smoother side facing away from the aerosol-generating material.

In one particular case, the carrier may be a paper-backed foil; The paper layer is in contact with the aerosol-generating material, and the properties discussed in the previous paragraphs are provided by this abutment. The foil backing is substantially impermeable, providing control of the aerosol flow path. The metal foil backing can also serve to conduct heat to the aerosol-generating material.

In other cases, the foil layer of the paper-bag foil is in contact with the aerosol-generating material. The foil is substantially impermeable, thereby preventing water provided to the aerosol-generating material from being absorbed into the paper, which could weaken the structural integrity of the paper.

In some cases, the carrier is formed from or includes a metal foil, such as aluminum foil. Metallic carriers may enable better conduction of thermal energy to the aerosol generating material. Additionally or alternatively, the metal foil can function as a susceptor in an induction heating system. In certain implementations, the carrier includes a metal foil layer and a support layer, such as cardboard. In these embodiments, the metal foil layer can have a thickness of less than 20 μm, such as about 1 μm to about 10 μm, suitably about 5 μm.

In some cases, the carrier may have a thickness of about 0.010 mm to about 2.0 mm, suitably about 0.015 mm, 0.02 mm, 0.05 mm, or 0.1 mm to about 1.5 mm, 1.0 mm, or 0.5 mm.

Expendables

In another aspect of the disclosure, a consumable for use in a non-flammable aerosol-providing device is provided, the consumable comprising an aerosol-generating composition, the aerosol-generating composition comprising an aerosol-generating material as defined herein.

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

The consumables may be used with any suitable non-flammable aerosol delivery device.

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

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

Aerosol modifiers are substances typically located downstream of the aerosol generating area that are configured to modify the produced aerosol, such as by changing the taste, flavor, acidity or other properties of the aerosol. The aerosol modifier may be provided with an aerosol modifier release component operable to selectively release the aerosol modifier.

Aerosol modifiers may be, for example, additives or absorbents. Aerosol-modifiers may include, for example, one or more of flavorants, colorants, water, and carbon adsorbents. Aerosol-modifying agents may be, for example, solid, liquid, or gel. Aerosol modifiers may be in powder, thread or granular form. The aerosol modifier may not contain filtration material.

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

Non-flammable aerosol delivery system

In another aspect of the disclosure, a non-flammable aerosol delivery system comprising the consumables described herein and a non-flammable aerosol delivery device is provided.

According to the present disclosure, a “non-flammable” aerosol delivery system is one in which the aerosol-generating composition of the aerosol delivery system (or a component thereof) does not combust or burn to enable delivery of at least one substance to a user. am.

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

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

In some embodiments, the non-flammable aerosol presentation device is a non-combustible heating device.

In some embodiments, the non-flammable aerosol delivery system is a hybrid system for generating an aerosol using a combination of aerosol generating compositions, one or more of which can be heated. In some embodiments, the hybrid system includes an aerosol-generating composition described herein comprising or consisting of an aerosol-generating material and an additional liquid or gel aerosol-generating composition.

In some embodiments, the non-flammable aerosol delivery device is an electronic cigarette hybrid device.

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

In some implementations, a non-flammable aerosol delivery system, such as a non-flammable aerosol delivery device thereof, can include a power source and a controller. The power source may be an electric power source or an exothermic power source. In some embodiments, the heating power source comprises a carbon substrate that can be energized to distribute power in the form of heat to a heat transfer material or to the aerosol-generating composition proximate the heating power source.

In some embodiments, a non-flammable aerosol delivery system, such as a non-flammable aerosol delivery device thereof, includes a region for receiving consumables, an aerosol generator, an aerosol generation region, a housing, a mouthpiece, a filter, and/or an aerosol modifier. do.

A non-flammable aerosol delivery system or device can include a heater configured to heat but not burn the aerosol generating composition/aerosol generating material. The heater may in some cases be a thin film electrical resistance heater. In other cases, the heater may include an induction heater, etc. In still further cases, the heater may be a chemical heat source or a combustible heat source that undergoes an exothermic reaction to produce heat when in use.

In some cases, the heater may heat the aerosolizable material(s) to 120° C. to 350° C. but not burn them when in use. In some cases, the heater may heat the aerosolizable material(s) to 140° C. to 250° C. but not burn them when in use. In some cases in use, substantially all of the aerosol-generating material is less than about 4 mm, 3 mm, 2 mm, or 1 mm from heating. In some cases, the solid is positioned about 0.017 mm to 2.0 mm, suitably about 0.1 mm to 1.0 mm from the heater. This minimum distance may, in some cases, reflect the thickness of the carrier supporting the aerosol-generating material. In some cases, the surface of the aerosol-generating material may directly contact the heater.

In some cases, the heater may be embedded in the aerosol-generating composition/aerosol-generating material. In some such cases, the heater may be an electrically resistive heater (with exposed contacts for connection to an electrical circuit). In other such cases, the heater may be a susceptor embedded in the aerosol-generating composition that is heated by induction.

Non-flammable aerosol delivery systems may additionally include cooling elements and/or filters. The cooling element, if present, may act or function to cool the gaseous or aerosol components. In some cases, it may act to cool the gas components such that they condense to form an aerosol. This may also serve to keep very hot parts of the device away from the user. The filter, if present, may comprise any suitable filter known in the art, such as a cellulose acetate plug.

In some cases, the non-flammable aerosol delivery system may be a non-combustible heating system. That is, it may contain solid materials (and may not contain liquid aerosolizable materials). A non-combustible heating device is disclosed in WO 2015/062983 A2, which is incorporated by reference in its entirety.

In some cases, a non-flammable aerosol delivery system may include an electronic cigarette hybrid device. That is, it may include solid aerosolizable materials and liquid aerosolizable materials. Separate aerosolizable materials can be heated by separate heaters, the same heater, or in one case, a downstream aerosolizable material can be heated by a hot aerosol generated from an upstream aerosolizable material. . An electronic cigarette hybrid device is disclosed in WO 2016/135331 A1, which is incorporated by reference in its entirety.

Alternatively, consumables may be referred to herein as cartridges. The consumable may be configured for use in a THP, electronic cigarette hybrid device, or other aerosol generating device. In some cases, the consumable may additionally include a filter and/or cooling element as previously described. In some cases, the consumable may be surrounded by a wrapping material such as paper.

The consumable may additionally include ventilation apertures. These may be provided on the side walls of the article. In some cases, ventilation apertures may be provided in the filter and/or cooling element. These apertures may allow cooling air to be drawn into the article during use, which may mix with heated volatile components thereby cooling the aerosol.

Aeration enhances the production of visible heated volatilized components from the article when the article is heated in use. The heated volatilized components become visible by a process of cooling the heated volatilized components such that supersaturation of the heated volatilized components occurs. The heated volatilized components are then subjected to droplet formation—otherwise known as nucleation—and eventually the size of the aerosol particles of the heated volatilized components increases with the heated volatilized components. It increases by further condensation of the heated components and coagulation of newly formed droplets from the heated volatilized components.

In some cases, the ratio of cool air to the sum of heated volatilized components and cool air (also known as aeration ratio) is at least 15%. An aeration ratio of 15% allows components volatilized by heating to be visualized by the method described above. The visibility of the heat-volatilized ingredients allows the user to identify the volatilized ingredients produced, adding to the sensory experience of the smoking experience.

In another example, the aeration ratio is 50% to 85% to provide additional cooling to the heated components. In some cases, the aeration ratio may be at least 60% or 65%.

1 and 2, a partial cutaway cross-sectional and perspective view of an example of consumable product 101 (“article”) is shown. Article 101 is configured for use with a device having a power source and heater. The article 101 of this embodiment is particularly suitable for use with the device 51 shown in Figures 5-7, described below. In use, article 101 may be removably inserted into the device shown in FIG. 5 at insertion point 20 of device 51 .

One example article 101 is in the form of a substantially cylindrical rod comprising a body 103 of a rod-shaped aerosol-generating composition and a filter assembly 105 . Aerosol-generating compositions include aerosol-generating materials described herein. In some implementations, it may be included in sheet form. In some embodiments, it may be included in the form of shredded sheets. In some embodiments, the aerosol-generating compositions described herein can be incorporated in sheet form and shredded form.

Filter assembly 105 has three segments; It includes a cooling segment (107), a filter segment (109) and a mouth end segment (111). The article 101 has a first end 113, also known as the mouth end or proximal end, and a second end 115, also known as the distal end. The body 103 of the aerosol-generating composition is positioned toward the distal end 115 of the article 101. In one example, the cooling segment 107 is positioned adjacent the body 103 of the aerosol-generating composition between the body 103 of the aerosol-generating composition and the filter segment 109, such that the cooling segment 107 It is in abutting relationship with the aerosol-generating composition 103 and the filter segment 109. In other examples, there may be a gap between the body 103 of the aerosol-generating composition and the cooling segment 107 and between the body 103 of the aerosol-generating composition and the filter segment 109. Filter segment 109 is positioned between cooling segment 107 and mouth end segment 111. Mouth end segment 111 is positioned toward proximal end 113 of article 101 adjacent filter segment 109. In one example, filter segment 109 is in abutting relationship with mouse end segment 111. In one embodiment, the overall length of filter assembly 105 is between 37 mm and 45 mm, and more preferably, the overall length of filter assembly 105 is 41 mm.

In one example, the rod 103 of aerosol-generating composition is 34 mm to 50 mm in length, suitably 38 mm to 46 mm in length, suitably 42 mm in length.

In one example, the overall length of article 101 is between 71 mm and 95 mm, suitably between 79 mm and 87 mm, suitably around 83 mm.

The axial end of the body 103 of the aerosol-generating composition is visible at the distal end 115 of the article 101. However, in other embodiments, the distal end 115 of the article 101 may include an end member (not shown) that covers the axial end of the body 103 of the aerosol-generating composition.

The body 103 of the aerosol-generating composition is coupled to the filter assembly 105 by an annular tipping paper (not shown), the tipping paper substantially surrounding the filter assembly 105. It is located around the circumference of 105 and extends partially along the length of body 103 of the aerosol-generating composition. In one example, the tipping paper is made from 58GSM standard tipping base paper. In one example, the tipping paper has a length between 42 mm and 50 mm, suitably about 46 mm.

In one example, cooling segment 107 is an annular tube, positioned around the cooling segment and defining an air gap within the cooling segment. The voids provide a chamber through which heated and volatilized components originating from the body 103 of the aerosol-generating composition flow. The cooling segment 107 is hollow to provide a chamber for aerosol accumulation, but is capable of absorbing axial compressive forces and bending moments that may occur during manufacturing and while the article 101 is being inserted into the device 51 in use. It has sufficient rigidity to withstand. In one example, the wall thickness of cooling segment 107 is approximately 0.29 mm.

Cooling segment 107 provides physical displacement between aerosol-generating composition 103 and filter segment 109. The physical displacement provided by cooling segment 107 will provide a thermal gradient over the length of cooling segment 107. In one example, the cooling segment 107 has a temperature of at least 40° C. between the heated volatilized component entering the first end of the cooling segment 107 and the heated volatilized component exiting the second end of the cooling segment 107. It is configured to provide a temperature difference of In one example, the cooling segment 107 has a temperature of at least 60° C. between the heated volatilized component entering the first end of the cooling segment 107 and the heated volatilized component exiting the second end of the cooling segment 107. It is configured to provide a temperature difference of This temperature difference across the length of the cooling element 107 protects the temperature sensitive filter segment 109 from high temperatures of the aerosol-generating composition 103 when the aerosol-generating composition 103 is heated by the device 51. . If no physical displacement is provided between the filter segment 109 and the body 103 of the aerosol-generating composition and the heating elements of the device 51, the temperature sensitive filter segment 109 may be damaged during use, and thus It will not perform its required functions effectively.

In one example, the length of cooling segment 107 is at least 15 mm. In one example, the length of the cooling segment 107 is 20 mm to 30 mm, more particularly 23 mm to 27 mm, more particularly 25 mm to 27 mm, suitably 25 mm.

The cooling segment 107 may be made of paper, meaning that the cooling segment 107 is constructed of a material that does not generate compounds of interest, such as toxic compounds, when used adjacent to the heater of the device 51. do. In one example, the cooling segment 107 is made from a spirally wound paper tube that provides a hollow internal chamber but maintains mechanical rigidity. Helically wound paper tubes can meet the stringent dimensional accuracy requirements of high-speed manufacturing processes with respect to tube length, outer diameter, roundness and straightness.

In another example, cooling segment 107 is a recess created from stiff plug wrap or tipping paper. The rigid plug wrap or tipping paper is manufactured with sufficient rigidity to withstand axial compressive forces and bending moments that may occur during manufacturing and while the article 101 is being inserted into the device 51 in use.

Filter segment 109 may be formed of any filter material sufficient to remove one or more volatilized compounds from the heated volatilized components from the aerosol-generating composition. In one example, filter segment 109 is made from a mono-acetate material, such as cellulose acetate. Filter segment 109 provides cooling and irritation-reduction from heated volatilized components without depleting the amount of heated volatilized components to levels unsatisfactory to the user.

In some implementations, a capsule (not shown) may be provided in the filter segment 109. This may be positioned substantially in the center of the filter segment 109 not only across the diameter of the filter segment 109 but also along the length of the filter segment 109 . In other cases, one or more dimensions may be offset. The capsule, if present, may in some cases contain volatile ingredients such as flavor or aerosol former materials.

The density of the cellulose acetate tow material of the filter segment 109 controls the pressure drop across the filter segment 109, which in turn controls the draw resistance of the article 101. Accordingly, material selection of the filter segment 109 is important in controlling the resistance to attraction of the article 101. Additionally, the filter segments perform a filtration function in the article 101.

In one example, the filter segment 109 is made of grade 8Y15 filter tow material, which provides a filtration effect on the heated volatilized material while also reducing the size of condensed aerosol droplets resulting from the heated volatilized material. Let's do it.

The presence of the filter segment 109 provides an insulating effect by providing additional cooling to the heated volatilized components exiting the cooling segment 107. This additional cooling effect reduces the contact temperature of the user's lips on the surface of the filter segment 109.

In one example, filter segment 109 is between 6 mm and 10 mm in length, more suitably about 8 mm.

Mouth end segment 111 is an annular tube located circumferentially and defining a void within mouth end segment 111 . The voids provide a chamber for heated volatilized components flowing from the filter segment 109. The mouth end segment 111 is hollow to provide a chamber for aerosol accumulation, but to withstand axial compressive forces and bending moments that may occur during manufacturing and while the article is being inserted into the device 51 in use. Has sufficient rigidity. In one example, the wall thickness of mouth end segment 111 is approximately 0.29 mm. In one example, the length of the mouth end segment 111 is between 6 mm and 10 mm, suitably about 8 mm.

The mouth end segment 111 may be manufactured from a spirally wound paper tube that provides a hollow inner chamber but maintains critical mechanical rigidity. Spiral wound paper tubes can meet the stringent dimensional accuracy requirements of high-speed manufacturing processes with respect to tube length, outer diameter, roundness and straightness.

The mouth end segment 111 provides the function of preventing any liquid condensation accumulated at the outlet of the filter segment 109 from coming into direct contact with the user.

In one example, mouth end segment 111 and cooling segment 107 may be formed of a single tube, with filter segment 109 positioned within that tube separating mouth end segment 111 and cooling segment 107. It must be understood that

3 and 4, a partial cutaway cross-sectional view and perspective view of an example of article 301 are shown. The reference signs shown in FIGS. 3 and 4 are the same as the reference signs shown in FIGS. 1 and 2 but are increased by 200.

In the example of article 301 shown in FIGS. 3 and 4 , a ventilation area 317 is provided in article 301 to allow air to flow from the exterior of article 301 to the interior of article 301. . In one example, ventilation area 317 takes the form of one or more ventilation holes 317 formed through the outer layer of article 301. Ventilation holes may be located in the cooling segment 307 to assist in cooling the article 301. In one example, the ventilation area 317 includes one or more rows of holes, preferably each row of holes forming the article 301 in a cross-section substantially perpendicular to the longitudinal axis of the article 301. ) are arranged in a circumferential direction around the circumference.

In one example, there are 1 to 4 rows of vent holes to provide ventilation for the article 301. Each row of ventilation holes may have 12 to 36 ventilation holes 317. The ventilation holes 317 may have a diameter of, for example, 100 to 500 μm. In one example, the axial separation between rows of ventilation holes 317 is between 0.25 mm and 0.75 mm, preferably 0.5 mm.

In one example, the ventilation holes 317 are uniform in size. In another example, the vent holes 317 vary in size. The vent holes may be manufactured using any suitable technique, such as one or more of the following techniques: laser technology, mechanical drilling of the cooling segment 307, or forming the cooling segment 307 into the article 301. Pre-drilling of the cooling segment 307 before. Ventilation holes 317 are positioned to provide effective cooling to article 301.

In one example, the rows of vent holes 317 are located at least 11 mm from the proximal end 313 of the article, suitably the vent holes are between 17 mm and 20 mm from the proximal end 313 of the article 301. is located in The locations of the ventilation holes 317 are positioned so that the user does not block the ventilation holes 317 when the article 301 is used.

Providing rows of ventilation holes 17 mm to 20 mm from the proximal end 313 of the article 301 allows the article 301 to be fully inserted into the device 51 , as can be seen in FIGS. 6 and 7 . When done, the ventilation holes 317 can be positioned outside of the device 51 . By locating the vent holes on the outside of the device, unheated air can enter the article 301 from the outside of the device 51 through the vent holes and help cool the article 301.

The length of the cooling segment 307 is such that when the article 301 is fully inserted into the device 51 , the cooling segment 307 is partially inserted into the device 51 . The length of the cooling segment 307 has the first function of providing a physical gap between the heater arrangement of the device 51 and the thermally sensitive filter arrangement 309, with vent holes 317 located in the cooling segment. It also provides a second function that allows the article 301 to be positioned outside of the device 51 when fully inserted into the device 51 . As can be seen in FIGS. 6 and 7 , most of the cooling elements 307 are located within device 51 . However, there is a portion of cooling element 307 that extends outside device 51 . It is in this part of the cooling element 307 that extends out of the device 51 where the ventilation holes 317 are located.

Referring now in more detail to Figures 5-7, typically arranged to heat the aerosol-generating composition to volatilize at least one component of the aerosol-generating composition to form an aerosol that can be inhaled. An example of the device 51 is shown. Device 51 is a heating device, which releases the compounds by heating but not burning the aerosol-generating composition.

The first end 53 is sometimes referred to herein as the mouth or proximal end 53 of device 51 and the second end 55 is sometimes referred to herein as the distal end 55 of device 51 do. The device 51 has an on/off button 57 that allows the entire device 51 to be switched on and off as desired by the user.

Device 51 includes a housing 59 for positioning and protecting the various internal components of device 51. In the example shown, housing 59 has a top panel 17 generally defining the 'top' of device 51 and a top panel 17 generally defining the 'bottom' of device 51. It includes a uni-body sleeve (11) surrounding the perimeter of the device (51) capped by the bottom panel (19). In another example, the housing includes, in addition to top panel 17 and bottom panel 19, a front panel, a rear panel, and a pair of opposing side panels.

The top panel 17 and/or the bottom panel 19 may be removably secured to the single-body sleeve 11 to allow easy access to the interior of the device 51, or the single-body sleeve 11 ) may be “permanently” fixed, for example, preventing the user from accessing the interior of the device 51. In one example, the panels 17 and 19 are made of a plastic material comprising glass-filled nylon formed, for example, by injection molding, and are incorporated into the single-body sleeve 11 ) is manufactured from aluminum, although other materials and other manufacturing processes may be used.

The top panel 17 of the device 51 has an opening 20 at the mouth end 53 of the device 51 through which the article comprising the aerosol-generating composition in use ( 101, 301) may be inserted into and removed from the device 51 by the user.

Housing 59 positions or secures heater arrangement 23, control circuit 25 and power source 27 therein. In this example, heater arrangement 23, control circuit 25, and power source 27 are positioned side by side, with control circuit 25 generally positioned between heater arrangement 23 and power source 27. Directionally adjacent (i.e., adjacent when viewed from one end), but other locations are also possible.

Control circuit 25 may include a controller, such as a microprocessor arrangement, constructed and arranged to control heating of the aerosol-generating composition within articles 101, 301, as discussed further below.

The power source 27 may be, for example, a battery, which may be a rechargeable battery or a non-rechargeable battery. Examples of suitable batteries include, for example, lithium-ion batteries, nickel batteries (e.g., nickel-cadmium batteries), alkaline batteries, and/or the like. Battery 27 is electrically connected to heater arrangement 23 to supply power as needed and heats the aerosol-generating composition in the article (as discussed, aerosol-generating composition) under control of control circuit 25. volatilizes the aerosol-generating composition without burning the composition).

The advantage of locating power source 27 laterally adjacent to heater arrangement 23 is that a physically large power source 25 can be used without unduly lengthening device 51 overall. As will be understood, generally, a physically larger power source 25 has a greater capacity (i.e., the total electrical energy that can be supplied, often measured in Amp-hours, etc.) and, therefore, has a greater capacity (i.e., the total electrical energy that can be supplied, often measured in Amp-hours, etc.) Battery life will be longer.

In one example, the heater arrangement 23 is generally in the form of a hollow cylindrical tube having a hollow internal heating chamber 29 within which the aerosol-generating composition is contained. Articles 101 and 301 are inserted for heating during use. Different arrangements for the heater arrangement 23 are possible. For example, heater arrangement 23 may comprise a single heating element or may be formed of a plurality of heating elements aligned along the longitudinal axis of heater arrangement 23. The or each heating element may be annular or tubular, or at least partially-annular or partially-tubular, around its circumference. In one example, the or each heating element may be a thin film heater. In another example, the or each heating element may be made from a ceramic material. Examples of suitable ceramic materials include alumina and aluminum nitride and silicon nitride ceramics, which can be layered and sintered. Other heating arrangements comprising, for example, inductive heating, infrared heater elements that heat by emitting infrared radiation, or resistive heating elements formed, for example, by resistive electrical winding. It is possible.

In one particular example, heater arrangement 23 is supported by a stainless steel support tube and includes a polyimide heating element. The heater arrangement 23 is such that when the article 101, 301 is inserted into the device 51, substantially the entire body of the aerosol-generating composition 103, 303 of the article 101, 301 is disposed in the heater arrangement ( 23) The dimensions are determined so that it can be inserted inside.

The or each heating element is arranged such that selected zones of the aerosol-generating composition are heated independently, e.g., sequentially (over time, as discussed above) or together (simultaneously), as desired. It can be.

In this example the heater arrangement 23 is surrounded along at least part of its length by a thermal insulator 31 . Thermal insulation 31 helps reduce heat passing from heater arrangement 23 to the outside of device 51 . Insulation helps lower power requirements for heater arrangement 23 because it generally reduces heat loss. Additionally, the insulation 31 helps keep the exterior of the device 51 cool during operation of the heater arrangement 23. In one example, the insulation 31 may be a double-walled sleeve that provides a low pressure area between the two walls of the sleeve. That is, the insulation 31 may be, for example, a “vacuum” tube, i.e. a tube that is at least partially evacuated to minimize heat transfer by conduction and/or convection. Other arrangements for the insulation 31, including the use of heat insulating materials, for example comprising a suitable foam-type material, in addition to or instead of a double-walled sleeve. sieves are possible.

Housing 59 may further include various internal support structures 37 to support heating arrangement 23 as well as all internal components.

The device 51 has a collar 33 extending around the opening 20 and protruding from the opening 20 into the interior of the housing 59, and positioned between the collar 33 and one end of the vacuum sleeve 31. It further includes a generally tubular chamber 35. Chamber 35 further comprises cooling structures 35f, in this example spaced apart along the outer surface of chamber 35 and circumferentially around the outer surface of chamber 35. It includes a plurality of cooling fins (35f) each arranged. When inserted into device 51 over at least a portion of the length of hollow chamber 35, an air gap 36 exists between hollow chamber 35 and articles 101, 301. The void 36 is around the entire circumference of the article 101 , 301 over at least a portion of the cooling segment 307 .

The collar 33 is arranged circumferentially around the perimeter of the opening 20 and includes a plurality of ridges 60 protruding into the opening 20 . The ridges 60 are such that the open span of the opening 20 at the locations of the ridges 60 is smaller than the open span of the opening 20 at the locations without the ridges 60. Occupies space within the opening 20. Ridges 60 are configured to engage with articles 101 , 301 inserted into device 51 to assist in securing the device within device 51 . Open spaces (not shown in the figures) defined by adjacent pairs of ridges 60 and articles 101, 301 form ventilation paths around the exterior of articles 101, 301. These vent paths allow hot vapors escaping from the articles 101, 301 to exit the device 51 and cool air to exit the device 51 around the articles 101, 301 within the voids 36. Allow it to flow within.

In operation, the articles 101, 301 are removably inserted into the insertion point 20 of the device 51, as shown in FIGS. 5-7. Referring particularly to FIG. 6 , in one example, the body of aerosol-generating composition 103, 303 positioned toward the distal end 115, 315 of the article 101, 301 is positioned toward the heater arrangement of device 51. (23) is fully accommodated within. The proximal ends 113, 313 of the articles 101, 301 extend from the device 51 and act as a mouthpiece assembly for the user.

In operation, the heater arrangement 23 will heat the article 101, 301 to volatilize at least one component of the aerosol-generating composition from the body of the aerosol-generating composition 103, 303.

The primary flow path for the heated volatilized components from the body of the aerosol-generating composition (103, 303) is axially, through the article (101, 301) and within the cooling segment (107, 307). through the side chamber, through the filter segments 109, 309, and through the mouse end segments 111, 313 to the user. In one example, the temperature of the heated volatilized components resulting from the body of the aerosol-generating composition is between 60° C. and 250° C., which may exceed the inhalation temperature acceptable to the user. As the heated volatilized components move through the cooling segments 107, 307, they cool and some of the volatilized components will condense on the inner surfaces of the cooling segments 107, 307.

In the examples of article 301 shown in FIGS. 3 and 4 , cooling air may enter cooling segment 307 through vent holes 317 formed in cooling segment 307 . This cooling air will mix with the heated volatilized components and provide additional cooling to the heated volatilized components.

Methods for manufacturing aerosol-generating materials

Another aspect of the invention provides a method of making an aerosol-generating material as described herein.

Way,

(i) providing a slurry comprising aerosol former material, chitosan, additional binders, fillers, solvents, and any optional additional components of the aerosol generating material;

(ii) forming a layer of slurry; and

(iii) drying the slurry to form an aerosol-generating material.

The disclosures herein regarding the components of aerosol-generating materials apply equally to slurries. The slurry may include these ingredients in any of the ratios given herein in relation to the composition of the aerosol-generating material.

When the aerosol generating material includes an additional binder that is alginate and/or pectin, the slurry may further include a coagulant and/or the coagulant may be applied to the slurry. In such cases, the method may further include solidifying the slurry. In some examples, forming a layer of slurry and/or solidifying the slurry and/or drying the slurry occur at least partially simultaneously (eg, during electrospraying). In some examples, forming a layer of slurry, coagulating the slurry with an optional coagulant, and drying the slurry occur sequentially in this order.

Another aspect of the invention provides a method (hereinafter referred to as the second method) of making an aerosol-generating composition comprising an aerosol-generating material as described herein. The method may include providing an aerosol-generating material and combining the aerosol-generating material with a tobacco material to provide an aerosol-generating composition.

In some cases, the aerosol-generating composition may include an aerosol-forming agent material in an amount of from about 5 to about 30% by weight of the aerosol-generating composition on a dry weight basis.

The second method typically includes providing an aerosol-generating material as described above, providing a tobacco material as described above, and producing an aerosol having an aerosol former content of 5 to 30% by weight of the aerosol-generating composition. and combining the aerosol generating material and the tobacco material in a ratio to provide the resulting composition.

In examples, the aerosol generating material is provided as shredded sheets. In certain examples, providing the aerosol-generating material includes shredding the sheet of aerosol-generating material to provide the aerosol-generating material as a shredded sheet. In examples, the tobacco material is shredded, and combining the aerosol-generating material with the tobacco material includes blending the shredded sheet of aerosol-generating material with the shredded tobacco material.

In examples, providing an aerosol-generating material includes (i) forming a slurry comprising components of the aerosol-generating material or precursors thereof, (ii) forming a layer of the slurry, and (iii) generating an aerosol. and drying the slurry to form a material.

(ii) Forming the layer of slurry typically includes spraying, casting, or extruding the slurry. In examples, the slurry layer is formed by electrospraying the slurry. In examples, the slurry layer is formed by casting the slurry.

In some examples, the slurry is applied to the support. The layer can be formed on a support.

In examples, drying (iii) is from about 50%, 60%, 70%, 80% or 90% by weight to about 80%, 90% or 95% by weight (wet weight basis, WWB). remove water from

In examples, drying step (iii) reduces the casting material thickness by at least 80%, suitably by 85% or 87%. For example, if the slurry is cast to a thickness of 2 mm, the resulting dried aerosol-generating material may have a thickness of 0.2 mm.

In embodiments, the dried aerosol-generating material forms a sheet or layer having a thickness of about 0.015 mm to about 1.0 mm. Suitably, the thickness may range from about 0.05 mm, 0.1 mm or 0.15 mm to about 0.5 mm or 0.3 mm, such as 0.05 to 0.3 or 0.15 to 0.3 mm. Materials with a thickness of 0.2 mm may be particularly suitable.

The slurry itself is an aspect of the invention. In some examples, the slurry solvent consists essentially of or consists of water. In some examples, the slurry includes about 50%, 60%, 70%, 80%, or 90% solvent (WWB) by weight.

A further aspect provides a method for making an aerosol-generating material as described herein using a papermaking process. In certain implementations, the papermaking process is an air-laid papermaking process. Use of the air-laid papermaking process reduces water consumption. A suitable air-laid papermaking process is discussed in US9901112B2, the disclosure of which is incorporated herein by reference.

In one implementation, the air-laid process includes:

(a) mixing filler with chitosan,

(b) forming a layer of the mixture on a surface, such as a moving surface, to form a base layer,

(c) applying the slurry comprising an aerosol former material and an additional binder by spraying the slurry onto the base layer, and

(d) includes drying.

In one embodiment, the spraying step (c) and the drying step (d) are repeated, for example two or three times.

Additional embodiments of the invention are presented below.

One. The aerosol-generating material of claim 1, wherein the aerosol-generating material comprises the aerosol former material in a total amount of about 1 to 80% by weight of the aerosol-generating material on a dry weight basis.

2. In the aerosol-generating material of Embodiment 1, the aerosol-generating material includes the aerosol former material in an amount of about 35 to 65% by weight of the aerosol-generating material on a dry weight basis.

3. The aerosol-generating material of Embodiment 2, wherein the aerosol-generating material includes the aerosol former material in an amount of about 40 to 60% by weight of the aerosol-generating material on a dry weight basis.

4. The aerosol-generating material of Embodiment 3, wherein the aerosol-generating material includes the aerosol former material in an amount of about 45 to 55% by weight of the aerosol-generating material on a dry weight basis.

5. The aerosol generating material of claim 1 or any preceding embodiment, wherein the aerosol former material is glycerol, propylene glycol, diethylene glycol, triethylene glycol, tetraethylene glycol, 1,3-butylene glycol, erythritol, meso-erythate. Lithol, ethyl vanillate, ethyl laurate, diethyl suberate, triethyl citrate, triacetin, diacetin mixture, benzyl benzoate, benzyl phenyl acetate, tributyrin, lauryl acetate, lauric acid, myristic acid. , and propylene carbonate (or glycerol, propylene glycol, diethylene glycol, triethylene glycol, tetraethylene glycol, 1,3-butylene glycol, erythritol, meso-erythritol, ethyl vanillate , ethyl laurate, diethyl suberate, triethyl citrate, triacetin, diacetin mixture, benzyl benzoate, benzyl phenyl acetate, tributyrin, lauryl acetate, lauric acid, myristic acid, and propylene carbohydrate. one or more of them).

6. The aerosol-generating material of claim 1 or any preceding embodiment, wherein the aerosol former material optionally comprises glycerol in combination with propylene glycol (or is glycerol in combination with propylene glycol).

7. The aerosol-generating material of claim 1 or any preceding embodiment, wherein the aerosol-generating material comprises chitosan in an amount of about 0.01 to 10% by weight of the aerosol-generating material on a dry weight basis.

8. The aerosol-generating material of embodiment 7, wherein the aerosol-generating material comprises chitosan in an amount of about 0.025 to 5% by weight of the aerosol-generating material on a dry weight basis.

9. The aerosol-generating material of embodiment 8, wherein the aerosol-generating material comprises chitosan in an amount of about 0.05 to 2% by weight of the aerosol-generating material on a dry weight basis.

10. The aerosol-generating material of embodiment 9, wherein the aerosol-generating material comprises chitosan in an amount of about 0.1 to 1% by weight of the aerosol-generating material on a dry weight basis.

11. The aerosol-generating material of embodiment 10, wherein the aerosol-generating material comprises chitosan in an amount of about 0.1 to 0.7 weight percent of the aerosol-generating material on a dry weight basis.

12. The aerosol-generating material of claim 1 or any of the preceding embodiments, wherein the additional binders include polysaccharide binders; gelatin; rubber band; silica or silicon compounds; Clays; and one or more compounds selected from polyvinyl alcohol (or one or more compounds selected from polysaccharide binders; gelatin; rubber bands; silica or silicone compounds; clays; and polyvinyl alcohol).

13. The aerosol-generating material of embodiment 12, wherein the polysaccharide binders are selected from alginate, pectin, starch or derivatives thereof, cellulose or derivatives thereof, pullulan, carrageenan, agar and agarose.

14. The aerosol-generating material of embodiment 12 or embodiment 13, wherein the gums are selected from xanthan gum, guar gum, and acacia gum.

15. The aerosol generating material of any one of embodiments 12-14, wherein the silica or silicone compounds are selected from PDMS and sodium silicate.

16. The aerosol generating material of any one of embodiments 12-15, wherein the clay is kaolin.

17. The aerosol-generating material of claim 1 or any of the preceding embodiments, wherein the additional binder comprises one or more compounds selected from guar gum, cellulose or derivatives thereof, and starch or derivatives thereof (or guar gum, cellulose or derivatives thereof, and one or more compounds selected from starch or derivatives thereof).

18. The aerosol generating material of any one of embodiments 13-17, wherein the cellulose derivative is hydroxymethyl cellulose, hydroxyethyl cellulose, hydroxypropyl cellulose, carboxymethylcellulose (CMC), hydroxypropyl methylcellulose (HPMC) ), methyl cellulose, ethyl cellulose, cellulose acetate (CA), cellulose acetate butyrate (CAB), and cellulose acetate propionate (CAP).

19. The aerosol-generating material of claim 1 or any of the preceding embodiments, wherein the additional binder comprises one or more compounds selected from guar gum, CMC, methyl cellulose and starch derivatives (or guar gum, CMC, methyl cellulose and starch one or more compounds selected from derivatives).

20. The aerosol-generating material of claim 1 or any one of embodiments 1 to 11, wherein the additional binder comprises one or more compounds selected from guar gum, CMC and starch derivatives (or from guar gum, CMC and starch derivatives). one or more selected compounds).

21. The aerosol-generating material of claim 1 or any one of embodiments 1 to 11, wherein the additional binder comprises one or more compounds selected from guar gum and starch derivatives (or one or more compounds selected from guar gum and starch derivatives) admit).

22. The aerosol generating material of any one of embodiments 13 to 21, wherein the starch derivatives include hydroxypropyl starch, sodium carboxymethyl starch, carboxymethyl starch, octenylsuccinic anhydride-modified starch, starch acetate, starch phosphate, It is selected from starch adipate, hydroxypropyl starch phosphate, phosphated starch phosphate, acetylated starch phosphate and acetylated starch adipate.

23. The aerosol-generating material of embodiment 22, wherein the modified starch comprises one or more of hydroxypropyl starch, carboxymethyl starch, and sodium carboxymethyl starch (or one or more of hydroxypropyl starch, carboxymethyl starch, and sodium carboxymethyl starch). am).

24. The aerosol-generating material of claim 1 or any preceding embodiment, wherein the aerosol-generating material includes the additional binder in a total amount of about 5 to 50% by weight of the aerosol-generating material on a dry weight basis.

25. The aerosol-generating material of embodiment 24, wherein the aerosol-generating material includes the additional binder in a total amount of about 10 to 40% by weight of the aerosol-generating material on a dry weight basis.

26. The aerosol-generating material of embodiment 25, wherein the aerosol-generating material includes the additional binder in a total amount of about 15 to 30% by weight of the aerosol-generating material on a dry weight basis.

27. The aerosol-generating material of embodiment 26, wherein the aerosol-generating material includes the additional binder in a total amount of about 15 to 25% by weight of the aerosol-generating material on a dry weight basis.

28. The aerosol-generating material of embodiment 27, wherein the aerosol-generating material includes the additional binder in a total amount of about 17% to 25% by weight of the aerosol-generating material on a dry weight basis.

29. The aerosol-generating material of claim 1 or any preceding embodiment, wherein the filler comprises one or more organic filler materials.

30. The aerosol-generating material of Embodiment 29, wherein the organic filler materials include wood pulp; tobacco pulp; hemp fiber; Starch and starch derivatives, such as maltodextrin; It is selected from cellulose and cellulose derivatives, such as microcrystalline cellulose and/or nanocrystalline cellulose.

31. The aerosol-generating material of claim 1 or any preceding embodiment, wherein the filler comprises (or is wood pulp) wood pulp.

32. The aerosol-generating material of claim 1 or any preceding embodiment, wherein the aerosol-generating material comprises filler in a total amount of at least 15% by weight of the aerosol-generating material on a dry weight basis.

33. The aerosol-generating material of embodiment 32, wherein the aerosol-generating material includes filler in a total amount of 15 to 40% by weight of the aerosol-generating material on a dry weight basis.

34. The aerosol-generating material of embodiment 33, wherein the aerosol-generating material includes filler in a total amount of about 20 to 40% by weight of the aerosol-generating material on a dry weight basis.

35. The aerosol-generating material of embodiment 34, wherein the aerosol-generating material includes filler in a total amount of about 25 to 35% by weight of the aerosol-generating material on a dry weight basis.

36. The aerosol-generating material of claim 1 or any preceding embodiment, wherein the aerosol-generating material does not include inorganic fillers.

37. The aerosol-generating material of claim 1 or any preceding embodiment, wherein the aerosol-generating material does not include calcium carbonate, such as chalk.

38. The aerosol-generating material of claim 1 or any preceding embodiment, wherein the aerosol-generating material does not include an active substance.

39. The aerosol-generating material of claim 1 or any preceding embodiment, wherein the aerosol-generating material does not include tobacco material.

40. The method of claim 1 or any preceding embodiment, wherein the aerosol generating material does not include caffeine.

41. The method of claim 1 or any preceding embodiment, wherein the aerosol generating material does not include components, derivatives or extracts of cannabis.

42. An aerosol-generating composition comprising an aerosol-generating material as defined in claim 1 or any preceding embodiment.

43. The aerosol-generating composition of embodiment 42, wherein the aerosol-generating composition further comprises tobacco material.

44. The aerosol-generating composition of embodiment 42 or 43, wherein the amount of aerosol-forming material of the aerosol-generating composition is from about 5 to about 30% by weight of the aerosol-generating composition on a dry weight basis.

45. The aerosol-generating composition of embodiment 44, wherein the amount of aerosol former material in the aerosol-generating composition is from about 10 to about 20% by weight of the aerosol-generating composition on a dry weight basis.

46. The aerosol-generating composition of embodiment 45, wherein the amount of aerosol-forming material of the aerosol-generating composition is from about 13 to about 17% by weight of the aerosol-generating composition on a dry weight basis.

47. The aerosol-generating composition of any one of embodiments 42-46, wherein the aerosol-generating composition comprises the aerosol-generating material in an amount of about 5 to 40% by weight of the aerosol-generating composition on a dry weight basis.

48. The aerosol-generating composition of embodiment 47, wherein the aerosol-generating composition comprises the aerosol-generating material in an amount of about 5 to 30% by weight of the aerosol-generating composition on a dry weight basis.

49. The aerosol-generating composition of embodiment 48, wherein the aerosol-generating composition comprises the aerosol-generating material in an amount of about 5 to 25% by weight of the aerosol-generating composition on a dry weight basis.

50. The aerosol-generating composition of embodiment 49, wherein the aerosol-generating composition comprises the aerosol-generating material in an amount of about 10 to 25% by weight of the aerosol-generating composition on a dry weight basis.

51. The aerosol-generating composition of embodiment 50, wherein the aerosol-generating composition comprises the aerosol-generating material in an amount of about 10 to 20% by weight of the aerosol-generating composition on a dry weight basis.

52. The aerosol-generating composition of any one of embodiments 43-51, wherein the aerosol-generating composition comprises tobacco material in an amount of about 50-95% by weight of the aerosol-generating composition on a dry weight basis.

53. The aerosol-generating composition of embodiment 52, wherein the aerosol-generating composition comprises tobacco material in an amount of about 60 to 95% by weight of the aerosol-generating composition on a dry weight basis.

54. The aerosol-generating composition of embodiment 53, wherein the aerosol-generating composition comprises tobacco material in an amount of about 70 to 90% by weight of the aerosol-generating composition on a dry weight basis.

55. The aerosol-generating composition of embodiment 54, wherein the aerosol-generating composition comprises tobacco material in an amount of about 80 to 90% by weight of the aerosol-generating composition on a dry weight basis.

56. The aerosol-generating composition of any one of embodiments 43-55, wherein the tobacco material comprises an aerosol former material in an amount of about 1 to 10% by weight of the tobacco material.

57. In the aerosol-generating composition of any one of embodiments 43-56, the tobacco material is shredded.

58. The aerosol-generating composition of any one of embodiments 43-57, wherein the tobacco material comprises lamina tobacco.

59. The aerosol-generating composition of any one of embodiments 43-58, wherein the tobacco material comprises cut filler tobacco.

60. The aerosol-generating composition of any one of embodiments 43-59, wherein the aerosol-generating material is in the form of shredded sheets and is blended with the tobacco material.

61. The aerosol-generating composition of any one of embodiments 42-60, wherein the aerosol-generating composition does not include caffeine.

62. The aerosol-generating composition of any one of embodiments 42-61, wherein the aerosol-generating composition does not include components, derivatives or extracts of cannabis.

63. The aerosol-generating composition of any one of embodiments 42-62, wherein the aerosol-generating composition does not include an inorganic filler.

64. The aerosol-generating composition of any one of embodiments 42-63, wherein the aerosol-generating composition does not include calcium carbonate, such as chalk.

The above embodiments defining the characteristics of the aerosol-generating material apply equally to the slurry of the invention.

Similarly, the above embodiments apply equally to the consumable, non-flammable aerosol delivery system, method of generating an aerosol, and method of forming the aerosol generating material of the present invention.

Examples

Using an air-laid papermaking process, aerosol generating materials (AGM) were prepared with the following components. Percentage amounts are quoted on a dry weight basis. The thicknesses, areal densities, tensile strengths and moisture contents of the aerosol generating materials were measured.

Thicknesses were measured using an L&W micrometer (A-2 version) with the settings in the following table. Conditions during the measurements were temperature 22 ± 2°C and relative humidity 60 ± 5%.

Areal densities were determined by cutting a 100 cm 2 sample of aerosol generating material using a 100 cm 2 cutter and then weighing the cut sample on an analytical balance (resolution 0.01 g). Conditions during the measurements were a temperature of 22 ± 2°C and a relative humidity of 60 ± 5%.

Samples for tensile strength measurements were prepared as follows:

- Samples 15 mm wide * 140 mm long are cut from sheet material,

- Both ends of the sample were folded over 25 mm to provide a sample with a total length of 90 mm with a single 40 mm thick section in the center.

Moisture contents were determined by Karl Fischer titration.

AGM-A

AGM-B

All weight percentages (expressed as weight percent) described herein are calculated on a dry weight basis (DWB), unless explicitly stated otherwise. All weight ratios are also calculated on a dry weight basis. Weights quoted on a dry weight basis refer to the entire extract or slurry or material other than water and may include components that are themselves liquid at room temperature and pressure, such as glycerol. Conversely, weight percentages quoted on wet weight basis (WWB) refer to all components containing water.

For the avoidance of doubt, when the term "comprise" is used herein to define the invention or features of the invention, the term "comprise" shall mean that the invention or feature "comprises" instead of "comprises." Implementations that can be defined using the terms “is” or “is comprised of” are also disclosed. Reference to a material “comprising” certain features means that such features are included in, contained in, or retained within the material.

The above embodiments should be understood as illustrative examples of the present invention. Any feature described in connection with any one implementation, aspect or embodiment may be used alone or in combination with other features described, and may also be used in conjunction with any other of the embodiments, aspects or embodiments. It should be understood that it may be used in combination with one or more features of an embodiment, or any combination of any other implementations, aspects or embodiments. Moreover, equivalents and modifications not described above may also be utilized without departing from the scope of the invention as defined in the appended claims.

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

Claims (27)

As an aerosol generating material,
(a) aerosol former material;
(b) chitosan;
(c) additional binders; and
(d) an aerosol-generating material comprising a filler. 2. The aerosol-generating material of claim 1, wherein the aerosol-generating material comprises chitosan in an amount of about 0.01% to 10% by weight of the aerosol-generating material on a dry weight basis. 3. The method of claim 1 or 2, wherein the aerosol former material is glycerol, propylene glycol, diethylene glycol, triethylene glycol, tetraethylene glycol, 1,3-butylene glycol, erythritol, meso-erythritol, ethyl vanyl. laurate, ethyl laurate, diethyl suberate, triethyl citrate, triacetin, diacetin mixture, benzyl benzoate, benzyl phenyl acetate, tributyrin, lauryl acetate, lauric acid, myristic acid, and propylene carbonate. Containing one or more of (or glycerol, propylene glycol, diethylene glycol, triethylene glycol, tetraethylene glycol, 1,3-butylene glycol, erythritol, meso-erythritol, ethyl vanillate, ethyl laurate, one or more of ethyl suberate, triethyl citrate, triacetin, diacetin mixture, benzyl benzoate, benzyl phenyl acetate, tributyrin, lauryl acetate, lauric acid, myristic acid, and propylene carbonate), producing aerosols ingredient. 4. The aerosol-generating material of any preceding claim, wherein the aerosol-generating material comprises aerosol former material in a total amount of about 35 to 65% by weight on a dry weight basis. 5. The aerosol-generating material of any preceding claim, wherein the aerosol-generating material comprises aerosol former material in a total amount of about 40 to 60% by weight on a dry weight basis. 6. The method according to any one of claims 1 to 5, wherein the additional binder is polysaccharide binders, such as alginate, pectin, starch or derivatives thereof, such as hydroxypropyl starch or carboxymethyl starch, sodium, cellulose or their derivatives, pullulan, carrageenan, agar and agarose; gelatin; Gums such as xanthan gum, guar gum and acacia gum; Silica or silicone compounds such as PDMS and sodium silicate; Clays such as kaolin; and polyvinyl alcohol (or polysaccharide binders such as alginate, pectin, starch or derivatives thereof, such as hydroxypropyl starch or carboxymethyl starch, sodium, cellulose or derivatives thereof, pullulan, agar and agarose; gums such as xanthan gum, guar gum and silica compounds such as PDMS and sodium silicates; one or more compounds), an aerosol-generating material. 7. The method according to any one of claims 1 to 6, wherein the additional binder is one or more selected from guar gum, cellulose or derivatives thereof, and starch or derivatives thereof, such as hydroxypropyl starch or sodium carboxymethyl starch. An aerosol-generating material comprising compounds (or being one or more compounds selected from guar gum, cellulose or derivatives thereof, and starch or derivatives thereof, such as hydroxypropyl starch or sodium carboxymethyl starch). The method of claim 6 or 7, wherein the cellulose derivative is hydroxymethyl cellulose, hydroxyethyl cellulose, hydroxypropyl cellulose, carboxymethylcellulose (CMC), hydroxypropyl methylcellulose (HPMC), methyl cellulose, An aerosol-generating material selected from the group consisting of ethyl cellulose, cellulose acetate (CA), cellulose acetate butyrate (CAB), and cellulose acetate propionate (CAP). 9. The method according to any one of claims 1 to 8, wherein the additional binder comprises one or more compounds selected from guar gum, CMC, and starch derivatives such as hydroxypropyl starch or sodium carboxymethyl starch (or guar gum , CMC, and starch derivatives such as hydroxypropyl starch or sodium carboxymethyl starch), an aerosol generating material. 10. An aerosol-generating material according to any preceding claim, wherein the aerosol-generating material comprises additional binders in a total amount of about 5 to 50% by weight of the aerosol-generating material on a dry weight basis. 11. An aerosol-generating material according to any preceding claim, wherein the filler comprises (or is) wood pulp. 12. The aerosol-generating material according to any preceding claim, wherein the aerosol-generating material comprises fillers in a total amount of at least 15% by weight of the aerosol-generating material on a dry weight basis. 13. Aerosol-generating material according to any one of claims 1 to 12, wherein the aerosol-generating material does not comprise an active substance. 14. An aerosol-generating material according to any preceding claim, wherein the aerosol-generating material does not include tobacco material. An aerosol-generating composition comprising the aerosol-generating material of any one of claims 1 to 14. 16. The aerosol-generating composition of claim 15, wherein the aerosol-generating composition further comprises tobacco material. 17. The aerosol-generating composition of claim 16, wherein the tobacco material is shredded. 18. An aerosol-generating composition according to claim 16 or 17, wherein the tobacco material comprises lamina tobacco. 19. An aerosol-generating composition according to any one of claims 16 to 18, wherein the tobacco material comprises cut-rag tobacco. 20. An aerosol-generating composition according to any one of claims 16 to 19, wherein the aerosol-generating material is in the form of shredded sheets and is blended with tobacco material. 21. A consumable for use in a non-flammable aerosol delivery device, the consumable comprising an aerosol-generating composition, the aerosol-generating composition comprising the aerosol-generating material of any one of claims 15-20. 22. A non-flammable aerosol delivery system comprising the consumable of claim 21 and a non-flammable aerosol delivery device, wherein when the consumable is used with the non-flammable aerosol delivery device, the non-flammable aerosol delivery device generates aerosol from the consumable. A non-flammable aerosol delivery system comprising an aerosol generating device arranged to generate. 23. A method of generating an aerosol using the non-flammable aerosol delivery system of claim 22, comprising heating the aerosol generating material to a temperature of less than 350°C. Use of an aerosol generating composition as defined in any one of claims 15 to 20 in a consumable for use with a non-flammable aerosol delivery device, wherein the non-flammable aerosol delivery device comprises a non-flammable consumable. Use of an aerosol-generating composition comprising an aerosol-generating device arranged to generate an aerosol from the consumable when used in conjunction with an aerosol-providing device. 15. A method of forming the aerosol-generating material of any one of claims 1 to 14, comprising:
(i) providing a slurry comprising aerosol former material, chitosan, additional binders, fillers, solvents and any optional additional components of the aerosol generating material;
(ii) forming a layer of the slurry; and
(iii) drying the slurry to form the aerosol-generating material. 26. The method of claim 25, wherein the solvent comprises water. A method for making the aerosol generating material of any one of claims 1 to 14 using a papermaking process, such as an air-laid papermaking process.