Aerosol generating materials

Abstract

An aerosol generating material is provided comprising a first fibrous material comprising a tobacco material and a second fibrous material comprising a non-tobacco plant material, wherein the aerosol generating material comprises the second fibrous material in an amount exceeding about 50% by weight of the aerosol generating material.

Description

Technology Field

[0001] The present disclosure relates to an aerosol generating material comprising first and second fibrous materials, non-combustible consumables comprising the aerosol generating material, and non-combustible aerosol providing systems comprising the aerosol generating material. Background Technology

[0002] Aerosol-generating materials are typically heated, for example, by a non-combustible aerosol delivery system to form an aerosol that can be inhaled by a consumer. Aerosol-generating materials can be made from various different sources, including tobacco materials and / or non-tobacco materials.

[0003] According to a first aspect of the invention, an aerosol generating material is provided comprising a first fibrous material comprising a tobacco material and a second fibrous material comprising a non-tobacco plant material, wherein the aerosol generating material comprises the second fibrous material in an amount greater than about 50% by weight of the aerosol generating material.

[0004] According to a second aspect of the invention, an aerosol generating rod comprising an aerosol generating material according to a first aspect of the invention is provided.

[0005] According to a third aspect of the invention, a delivery system comprising an aerosol generating material according to a first aspect or an aerosol generating rod according to a second aspect of the invention is provided. Brief explanation of the drawing

[0006] Embodiments of the invention are described by way of example only with reference to the accompanying drawings, in which: FIG. 1 is a cross-sectional view of an article containing an aerosol-generating material. FIG. 2 is a cross-sectional view of an article containing an aerosol-generating material. FIG. 3 is a cross-sectional view of an article containing an aerosol-generating material. FIG. 4 is a cross-sectional view of an article containing an aerosol-generating material. Specific details for implementing the invention

[0007] Aerosol generating materials contain aerosolizable components. Upon use, the aerosol generating material produces an aerosol, for example, a suspension of droplets or particulates in a gas. The aerosol contains not only nicotine but also other components produced by the aerosol generating material. Upon use, the user inhales the aerosol. Therefore, it is important that the aerosol generating material produces an aerosol that provides an appropriate user experience and satisfaction.

[0008] Certain tobacco-based aerosol generating materials have been found to produce aerosols with distinctly different flavor and / or sensory profiles compared to traditional cigarettes. Some of these aerosol generating materials produce aerosols that may be less preferred by consumers.

[0009] It has been found that when non-tobacco plant materials are combined with tobacco materials, the flavor and / or sensory profile of the aerosol generating material can be improved. In particular, when non-tobacco plant materials are included in the aerosol generating material in an amount of more than 50% by weight, a particularly favorable flavor profile can be achieved.

[0010] Furthermore, non-tobacco plant materials have been found to act as particularly effective flavor carriers. Therefore, by utilizing aerosol-generating materials as described herein in combination with flavors and / or sensory agents, control of the flavor profile becomes possible.

[0011] As used herein, the term “delivery system” is intended to encompass systems that deliver materials to a user and includes the following:

[0012] Combustion-type aerosol delivery systems, such as cigarettes, cigarillos, cigars, and tobacco for pipe or roll-your-own or make-your-own cigarettes (regardless of whether based on tobacco, tobacco derivatives, puffed tobacco, reconstituted tobacco, tobacco substitutes, or other smokeable materials);

[0013] Non-combustion aerosol delivery systems that release compounds from aerosol-generating materials without burning the aerosol-generating materials, such as electronic cigarettes, tobacco heating products, and hybrid systems that generate aerosols using a combination of aerosol-generating materials; and

[0014] Aerosol-free delivery systems that deliver materials to a user without forming an aerosol, such as articles including lozenges, gums, patches, and inhalable powders, and smokeless tobacco products, such as snus and snuff.

[0015] According to the present disclosure, a "combustion-type" aerosol delivery system is a system in which a component aerosol generating material of the aerosol delivery system (or its component) is combusted or burned during use to facilitate the delivery of at least one substance to a user.

[0016] In some embodiments, the delivery system is a combustible aerosol delivery system selected from the group consisting of, for example, cigarettes, cigarillos, and cigars.

[0017] In some embodiments, the present disclosure relates to components for use in a combustion-type aerosol delivery system, such as a filter, filter rod, filter segment, tobacco rod, spill, aerosol modifier release components, such as a capsule, thread, or bead, or paper, such as plug wrap, tipping paper, or cigarette paper.

[0018] According to the present disclosure, a "non-combustible" aerosol delivery system is a system in which the aerosol generating material constituent of the aerosol delivery system (or its components) is not combusted or burned to facilitate delivery to a user.

[0019] In some embodiments, the delivery system is a non-combustible aerosol delivery system, such as an electric-driven non-combustible aerosol delivery system.

[0020] In some embodiments, the non-combustible aerosol delivery system is also known as an electronic cigarette, vaping device, or electronic nicotine delivery system (END).

[0021] In some embodiments, the non-combustible aerosol delivery system is also known as a tobacco heating system or a heat-not-burn system.

[0022] In some embodiments, the non-combustion aerosol delivery system is a hybrid system that generates an aerosol using a combination of aerosol-generating materials, one or more of which may be heated. Each of the aerosol-generating materials may be in the form of, for example, a solid, a liquid, or a gel. In some embodiments, the hybrid system comprises a liquid or gel aerosol-generating material and a solid aerosol-generating material.

[0023] Typically, a non-combustion aerosol delivery system may include a non-combustion aerosol delivery device (also referred to herein as an aerosol generating device) and consumables for use with the non-combustion aerosol delivery system.

[0024] In some embodiments, the present disclosure relates to consumables comprising an aerosol-generating material and configured for use with non-combustible aerosol-giving devices. Such consumables are referred to as articles throughout the present disclosure.

[0025] In some embodiments, it is expected that consumables comprising means for supplying power to an aerosol generating component may themselves form a non-combustible aerosol supply system.

[0026] In some embodiments, the non-combustible aerosol delivery system may include a power source and a controller. The power source may be an electric power source or a heating power source. In some embodiments, the heating power source comprises a carbon substrate, and the carbon substrate may be supplied with energy to distribute power in the form of heat to an aerosol generating material or heat transfer material adjacent to the heating power source. In some embodiments, the power source, such as a heating power source, is provided to an article to form a non-combustible aerosol delivery system.

[0027] In some embodiments, the non-combustible aerosol delivery system may include an area for receiving consumables, an aerosol generator, an aerosol generating area, a housing, a mouthpiece, a filter, and / or an aerosol modifier.

[0028] In some embodiments, consumables for use with a non-combustible aerosol delivery device may include an aerosol generating material, an aerosol generating material storage area, an aerosol generating material delivery component, an aerosol generator, an aerosol generating area, a housing, a wrapper, a filter, a mouthpiece, and / or an aerosol modifier.

[0029] In some embodiments, the material to be delivered comprises an active substance. As used herein, the active substance may be a physiologically active material that is a material intended to achieve or enhance a physiological response. The active substance may be selected from, for example, nutraceuticals, nootropics, and psychoactives. The active substance may occur naturally or be obtained synthetically. The active substance may include, for example, nicotine, caffeine, taurine, theine, vitamins such as B6, 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, cannabis, or other plant materials.

[0030] In some embodiments, the active substance is a legally permitted recreational drug.

[0031] In some embodiments, the active substance comprises nicotine, such as a nicotine salt or free base nicotine. In some embodiments, the active substance comprises caffeine, melatonin, or vitamin B12.

[0032] As mentioned in the present specification, the active substance may include one or more constituents, derivatives, or extracts of cannabis, such as one or more cannabinoids or terpenes.

[0033] In some embodiments, the aerosol generating material comprises a cannabinoid selected from a list consisting of cannabigerol (CBG), cannabicromene (CBC), cannabidiol (CBD), tetrahydrocannabinol (THC), cannabinol (CBN), cannabinodiol (CBDL), cannabicyclol (CBL), cannabivarin (CBV), tetrahydrocannabivarin (THCV), cannabidivarin (CBDV), cannabichromevarin (CBCV), cannabigerovarine (CBGV), cannabigerol monomethyl ether (CBGM), cannabinerol acid, cannabidiol acid (CBDA), cannabinol propyl variant (CBNV), cannabitriol (CBO), tetrahydrocannabinol acid (THCA), and tetrahydrocannabivaric acid (THCVA), and mixtures thereof.

[0034] The active substance may be CBD or its derivative.

[0035] As used herein, the term “botanical” includes any material derived from plants, such as extracts, leaves, bark, fibers, stems, roots, seeds, flowers, fruits, pollen, husks, shells, etc., but is not limited thereto. Alternatively, the material may include an active compound naturally present in plant material that is obtained synthetically. The material may be in the form of liquid, gas, solid, powder, dust, crushed particles, granules, pellets, shreds, strips, sheets, etc. Examples of plant substances include eucalyptus, star anise, hemp, cocoa, cannabis, fennel, lemongrass, peppermint, spearmint, rooibos, chamomile, flax, ginger, ginkgo leaves, hazelnut, hibiscus, bay leaf, licorice, matcha, mate, orange peel, papaya, rose, sage, tea such as green or black tea, thyme, cloves, cinnamon, coffee, anise seeds (anise), basil, bay leaves, cardamom, coriander, cumin, nutmeg, oregano, paprika, rosemary, saffron, lavender, lemon peel, mint, juniper, elderflower, vanilla, wintergreen, beefsteak plant, turmeric, turmeric, sandalwood, cilantro, bergamot, orange blossom, myrtle, cassis, valerian, pimento, mace, damien, marjoram, olive, lemon balm, lemon basil. There are chives, carbi, verbena, tarragon, geranium, mulberry, ginseng, theanine, theacrine, maca, ashwagandha, damiana, guarana, chlorophyll, baobab, or any combination thereof. Mint may be selected from the following mint varieties: Mentha arvensis, Mentha cv, Mentha niliaca, Mentha piperita, Mentha piperita citrata cv, Mentha piperita cv), Mentha spicata crispa, Mentha cordifolia, Mentha longifolia, Mentha suaveolens variegata, Mentha pulegium, Mentha spicata cv and Mentha suaveolens.

[0036] In some embodiments, the active substance comprises or is derived from one or more plant materials or their constituents, derivatives, or extracts, and the non-tobacco plant material is selected from eucalyptus, cocoa, and hemp.

[0037] In some embodiments, the active substance comprises or is derived from one or more non-tobacco plant materials or their constituents, derivatives, or extracts, and the non-tobacco plant material is selected from star anise, rooibos, mint, and fennel.

[0038] An aerosol is a suspension of liquid, solid, or both particles in a gas.

[0039] In some embodiments, the second fibrous material includes rooibos.

[0040] In some embodiments, the non-tobacco plant material includes rooibos.

[0041] In some embodiments, the substance to be delivered includes flavor.

[0042] As used herein, the terms “flavor” and “flavorant” refer to materials that may be used to produce a desired taste, aroma, or other somatosensorial sensation in products for adult consumers, where permitted by local regulations. These may include naturally occurring flavoring ingredients, plant substances, extracts of plant substances, synthetically obtained ingredients, or combinations thereof (e.g., tobacco, cannabis, licorice, hydrangea, eugenol, Japanese white bark magnolia leaves, chamomile, fenugreek, clove, maple, matcha, menthol, Japanese mint, anise seed (anise), cinnamon, turmeric, Indian spices, Asian spices, herbs, wintergreen, cherry, berry, red berry, cranberry, peach, apple, orange, mango, clementine, lemon, lime, tropical fruits, papaya, rhubarb, grape, durian, dragon fruit, cucumber, blueberry, mulberry, citrus fruits, Drambuie, bourbon, Scotch, whisky, gin, tequila, rum, spearmint, peppermint, lavender, aloe vera, cardamom, celery, cascarilla, nutmeg, sandalwood, Bergamot, geranium, khat, nasoir, betel, shisha, pine, honey essence, rose oil, vanilla, lemon oil, orange oil, orange blossom, cherry blossom, cassia, caraway, cognac, jasmine, ylang-ylang, sage, fennel, wasabi, pimento, ginger, coriander, coffee, hemp, mint oil from any species of the genus Mentha, eucalyptus, star anise, cocoa, lemongrass, rooibos, flax, ginkgo leaf, hazel, hibiscus, bay leaf, mate, orange peel, rose, tea such as green or black tea, thyme, juniper, elderflower, basil, bay leaves, cumin, oregano, paprika, rosemary, saffron, lemon peel, mint, beefsteak plant, turmeric, cilantro, myrtle, cassis, valerian, pimento, macé, damien, marjoram, olive, lemon Chestnuts, lemon basil, chives, carbur, verbena, tarragon,They may include limonene, thymol, camphene), flavor enhancers, bitter taste receptor blockers, sensory receptor activators or stimulants, 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, plant materials, or breath fresheners. These may be imitation, synthetic, or natural ingredients or combinations thereof. They may be in any suitable form, e.g., liquid such as oil, solid such as powder, or gas.

[0043] In some embodiments, the flavor comprises menthol, spearmint, and / or peppermint. In some embodiments, the flavor comprises flavor components of cucumber, blueberry, citrus fruits, and / or red berry. In some embodiments, the flavor comprises eugenol. In some embodiments, the flavor comprises flavor components extracted from tobacco. In some embodiments, the flavor comprises flavor components extracted from cannabis, such as terpenes. .

[0044] In some embodiments, the flavor may include a sensory agent, and the sensory agent is intended to achieve a somatosensory sensation, which is typically chemically induced and perceived by stimulation of the fifth cranial nerve (trigeminal nerve), in addition to or instead of the flavor or taste nerves, and may include agents that provide a warming, colding, tingling, or numbing effect. Suitable warming agents may include, but are not limited to, vanillyl ethyl ether, and suitable cooling agents may include, but are not limited to, eucalyptol and WS-3.

[0045] In some embodiments, the flavor comprises menthol, spearmint, and / or peppermint. In some embodiments, the flavor comprises flavor components of berry fruits, citrus fruits, and / or tropical fruits. In some embodiments, the flavor may comprise cucumber, blueberry, citrus fruits, pineapple, strawberry, and / or red berry.

[0046] In some embodiments, flavors added to the aerosol generating material may be selected to enhance the base flavor characteristics of the aerosol generating material. For example, as described herein, non-tobacco plant materials may be selected as the main component of the fibrous material. In these cases, the non-tobacco plant materials may produce a particularly neutral flavor profile, and it is noted that when, for example, rooibos, fennel, star anise, and / or mint are utilized in the aerosol generating material, the resulting aerosol is relatively neutral in flavor. When one or more of rooibos, fennel, star anise, and / or mint are used, the resulting flavor may be enhanced when paired with flavors such as menthol, spearmint, peppermint; berry fruits, citrus fruits, and / or tropical fruits, or any combination of these flavors. The presence of these neutral or subtle flavors also does not diminish the flavor or aroma of the tobacco material. Certain known aerosol generating materials have been found to interact with the natural flavors / aromas of tobacco materials in negative / undesirable ways. This aerosol generating material avoids these negative aspects associated with certain known aerosol generating materials.

[0047] Aerosol-generating materials are materials capable of generating aerosols, for example, when heated, irradiated, or otherwise supplied with energy. Aerosol-generating materials may be in the form of solids, liquids, or semi-solids (e.g., gels) that may or may not contain active substances and / or flavoring agents, for example.

[0048] The aerosol-generating material may include one or more active substances and / or flavors, one or more aerosol-forming agent materials, and optionally one or more other functional materials.

[0049] The aerosol generating material may comprise or be an aggregate of individual sheets of material. For example, the aerosol generating material may comprise a first sheet comprising a first fibrous material comprising a tobacco material, and a second sheet comprising a second fibrous material comprising a non-tobacco plant material. The aerosol generating material may be described as a combination of the first fibrous material comprising a tobacco material and the second fibrous material comprising a non-tobacco plant material.

[0050] A sheet of material may be in the form of a wrapper, may be assembled to form an aggregate sheet, or may be shredded to form a shredded sheet. The shredded sheet may comprise one or more strands or strips of aerosol-generating material.

[0051] A sheet or shredded sheet comprises a first surface and a second surface facing the first surface. The dimensions of the first surface and the second surface are congruent. The first surface and the second surface of the sheet or shredded sheet may have any shape. For example, the first surface and the second surface may be square, rectangular, elliptical, or circular. Irregular shapes are also expected. The first surface and / or the second surface of the sheet or shredded sheet may be relatively uniform (e.g., relatively smooth) or non-uniform or irregular. For example, the first surface and / or the second surface of the sheet may be textured or patterned to form a relatively rough surface. In some embodiments, the first surface and / or the second surface are relatively rough. The smoothness of the first surface and the second surface may be influenced by several factors, such as the area density of the sheet or shredded sheet, the characteristics of the components constituting the aerosolizable material, or whether the surfaces of the material have been manipulated, for example, whether they have been embossed, scored, or otherwise modified to impart a pattern or texture.

[0052] A shredded sheet may comprise one or more strands or strips of an aerosolizable material. In some embodiments, the shredded sheet comprises a plurality (e.g., two or more) of strands or strips of an aerosolizable material. When the shredded sheet comprises a plurality of material strands or strips, the dimensions of each strand or strip may differ between the different strands or strips. For example, the shredded sheet may comprise a group of first strands or strips and a group of second strands or strips, wherein the dimensions of the strands or strips of the first group differ from the dimensions of the strands or strips of the second group. In other words, the plurality of strands or strips may comprise a group of first strands or strips having a first aspect ratio and a group of second strands or strips having a second aspect ratio different from the first aspect ratio.

[0053] The first dimension, i.e., the cut width, of the strands or strips of the aerosolizable material is 0.9 mm to 1.5 mm. When strands or strips of the aerosolizable material have a cut width of less than 0.9 mm and are incorporated into an article for use in a non-combustion aerosol delivery system, the pressure drop across the article may increase to a level that renders the article unsuitable for use in a non-combustion aerosol delivery device. However, if the strands or strips have a cut width greater than 2 mm (e.g., greater than 2 mm), it may be difficult to insert the strands or strips of the aerosolizable material into the article during manufacturing. In a preferred embodiment, the cut width of the strands or strips of the aerosolizable material is about 1 mm to 1.5 mm.

[0054] A consumable is an article comprising or composed of an aerosol-generating material, intended to be consumed in whole or in part during use by a user. In some embodiments, a consumable for use with a non-combustible aerosol delivery device may comprise one or more other components, such as an aerosol-generating material storage area, an aerosol-generating material delivery component, an aerosol generator, an aerosol-generating area, a housing, a wrapper, a filter, a mouthpiece, and / or an aerosol modifier. The consumable may also comprise an aerosol generator, such as a heater, which emits heat that causes the aerosol-generating material to generate an aerosol during use. The heater may comprise, for example, a combustible material, a material heatable by electrical conduction, or a susceptor. A susceptor is a material heatable by the penetration of a changing magnetic field, such as an alternating magnetic field.

[0055] In some embodiments, when the aerosol-generating material is present in the consumable, it is about 0.1 g / cm³ 3 Up to about 0.7 g / cm³ 3 It has a density of. For example, the density of the aerosol-generating material in consumables is approximately 0.15 g / cm³. 3 Up to about 0.65 g / cm³ 3 , for example, about 0.15 g / cm³ 3 Up to about 0.60 g / cm³ 3 , for example, about 0.15 g / cm³ 3 Up to about 0.55 g / cm³ 3 , for example, about 0.15 g / cm³ 3 Up to about 0.50 g / cm³ 3 , for example, about 0.15 g / cm³ 3 Up to about 0.45 g / cm³ 3 , for example, about 0.20 g / cm³ 3 Up to about 0.45 g / cm³ 3 , for example, about 0.20 g / cm³ 3 Up to about 0.40 g / cm³ 3 It could be.

[0056] As illustrated in FIG. 1, the mouthpiece (2) of the article (1) comprises an upstream end closest to the aerosol generating material (5) and a downstream end far from the aerosol generating material (5). The article (1) may further comprise an auxiliary filter segment (3), the auxiliary filter segment (3) may comprise a filtration material such as a carbonaceous material or a flavor modifier such as a flavored capsule as is well known in the art. The article (1) may comprise a region (4) designed to lower the temperature of the aerosol generated from the aerosol generating material (5). Methods for lowering the temperature of the aerosol within the article are well known in the art and include elements such as a thermal displacement collar / section, a hollow tube, or any other known feature. The article (1) has an aerosol generating material (5) comprising a mixture of a first fibrous material comprising a tobacco material and a second fibrous material comprising a non-tobacco plant material, as described herein.

[0057] FIG. 2 illustrates an alternative article (1) comprising separate and distinct aerosol-generating materials. For example, the aerosol-generating material (5) comprises a first fibrous material comprising a tobacco material, and the aerosol-generating material (6) comprises a second fibrous material comprising a non-tobacco plant material.

[0058] FIGS. 3 and 4 illustrate additional alternative articles (1), wherein a first fibrous material comprising tobacco material (5) and a second fibrous material comprising non-tobacco plant material (6) are extended along the length of the aerosol-generating portion of the article (1) in different arrangements.

[0059] By changing the arrangement of the first fibrous material and the second fibrous material within the consumable, the user can perceive different experiences.

[0060] Fiber materials containing non-tobacco plant materials can complement the flavor profile of any generated aerosol. For example, a non-tobacco plant material having a relatively neutral flavor profile may be selected. A neutral flavor profile can be described as a flavor profile that has few intense flavors and / or readily accepts loadings of top flavors without significantly affecting their perception.

[0061] In some embodiments, the fibrous material may be referred to as a substrate. The aerosol generating material may be described as comprising a first substrate and a second substrate corresponding to a first fibrous material comprising a tobacco material and a second fibrous material comprising a non-tobacco plant material.

[0062] In some embodiments, the aerosol generating material comprises a first fibrous material comprising a tobacco material, a second fibrous material comprising a non-tobacco plant material, an active substance, and a binder. In certain situations, consumers may desire to experience the effects of an active substance other than nicotine, such as one or more of those described above.

[0063] The plant material may be any non-tobacco plant material. For example, the material may be derived from species that are members of the Asteraceae, Fabaceae, Myrtaceae, Apiaceae, Camellia taliensis, Solanaceae, Brassicaceae, Caricaceae, Asclepiadaceae, Equisetaceae, Oleaceae, and Lamiaceae families, as well as tisanes. For example, the non-tobacco plant material may be Matricaria species, such as chamomile; Pimpinella anisum species, such as anise; It can be selected from species of *Foeniculum vulgare*, such as fennel; jasmine; lavender; cloves; eucalyptus, and species of *Aspalathus linearis*, such as rooibos.

[0064] In some embodiments, the non-tobacco plant material is selected from plant materials containing advantageous flavor properties for use in non-combustion aerosol delivery systems. For example, the non-tobacco plant material may contain relatively fewer flavor compounds compared to traditional tobacco materials; thus, the aerosol produced from the non-tobacco plant material may have a different profile of volatile compounds compared to the aerosol produced from tobacco materials. The non-tobacco plant material can deliver an aerosol that is considered advantageous to consumers of tobacco-based delivery systems. In some embodiments, when heated, the non-tobacco plant material can produce an aerosol having a sensory experience comparable to that provided by conventional combustion products such as cigarettes. In some embodiments, the non-tobacco plant material is selected from seed-producing plants that do not develop persistent woody tissue and are often valued for their medicinal or sensory properties. In some embodiments, it may be desirable to provide an aerosol-generating material for use in non-combustion aerosol delivery systems that does not contain tobacco plant materials.

[0065] As used herein, the term “tobacco material” refers to a material derived from plants of the species Nicotiana. The selection of plants of the species Nicotiana is not limited, and the types of tobacco or tobaccos used may vary. The term “tobacco material” may include one or more of tobacco, tobacco derivatives, puffed tobacco, reconstituted tobacco, or tobacco substitutes. Tobacco material may include one or more of crushed tobacco, tobacco fibers, cut tobacco, extruded tobacco, leaf tobacco, tobacco stems, reconstituted tobacco, and / or tobacco extracts. As used herein, “leaf tobacco” means cut laminar tobacco.

[0066] In some embodiments, the tobacco material is selected from flue-cured or Virginia, Burley, sun-cured, Maryland, dark-fired, dark air-cured, light air-cured, Indian air-cured, Red Russian, and Rustica tobacco, as well as mixtures thereof, and from various other rare or specialty tobaccos in green or cured states. Tobacco material produced through any other type of tobacco treatment capable of altering tobacco flavor, such as fermented tobacco or genetic modification or crossbreeding techniques, is also within the scope of this disclosure. For example, it is expected that tobacco plants may be genetically engineered or crossbred to increase or decrease the production of components, characteristics, or attributes.

[0067] In some embodiments, the tobacco material is sun-dried tobacco selected from Indian Kurnool and Oriental tobaccos, including Izmir, Basma, Samsun, Katerini, Prelip, Komotini, Xanthi, and Yambol tobaccos. In some embodiments, the tobacco material is dark brown shade-dried tobacco selected from Passanda, Cubano, Jatin, and Besuki tobaccos. In some embodiments, the tobacco material is light brown shade-dried tobacco selected from North Wisconsin and Galpao tobaccos.

[0068] In some embodiments, the tobacco material is selected from Brazilian tobaccos, including Mata Fina and Bahia tobaccos. In some embodiments, the tobacco material is selected from Criollo, Piloto Cubano, Olor, Green River, Isabela DAC, White Pata, Eluru, Jatim, Madura, Kasturi, Connecticut Seed, Broad Leaf, Connecticut, Pennsylvania, Italian dry air cured, Paraguayan dry air cured, and One Sucker tobaccos.

[0069] For the manufacture of smoking / vaping or smokeless tobacco products, plants of the Nicotiana species may undergo a drying process. Certain types of tobacco may undergo alternative types of drying processes, such as flame drying or sun drying. Preferably, but not necessarily, the dried harvested tobacco is aged.

[0070] Tobacco can be harvested at different stages of growth; for example, when the plant reaches a maturity level and the lower leaves are ready for harvest while the upper leaves are still developing.

[0071] In some embodiments, at least one part of a plant of the Nicotiana species (e.g., at least one part of tobacco material) is used in an immature form. That is, in some embodiments, the plant, or at least one part of the plant, is harvested before reaching a stage that is typically considered ripe or mature.

[0072] In some embodiments, at least a portion of the plant of the Nicotiana species (e.g., at least a portion of the tobacco material) is used in a mature form. That is, in some embodiments, the plant, or at least one part of the plant, is harvested when the plant (or part of the plant) reaches a point traditionally considered ripe, overripe, or mature, which can be achieved through the use of tobacco harvesting techniques commonly used by farmers. Both Oriental tobacco and Burleigh tobacco plants may be harvested. Additionally, Virginia tobacco leaves may be harvested or picked depending on the stem position.

[0073] Nicotiana species can be selected based on the content of various compounds present in the plants. For example, plants can be selected based on plants that produce one or more of the compounds to be isolated (i.e., volatile compounds of interest) in relatively large amounts. In certain embodiments, plants of Nicotiana species are cultivated specifically for the abundance of compounds on their leaf surfaces. Tobacco plants may be grown in greenhouses, growth chambers, or outdoor fields, or hydroponically.

[0074] Various parts or sections of the plant of the Nicotiana species may be utilized. In some embodiments, the entire plant, or substantially the entire plant, is harvested and used as is. As used herein, the term “substantially the entire plant” means that at least 90% of the plant is harvested, for example, at least 95% of the plant, or at least 99% of the plant is harvested. Alternatively, in some embodiments, various parts or pieces of the plant are harvested or separated for further use after harvest. In some embodiments, the tobacco material is selected from the leaves, stems, stalks, and various combinations of these parts of the plant. The tobacco material of the present disclosure may therefore comprise the entire plant of the Nicotiana species or any part of the plant.

[0075] The tobacco material may be reconstituted tobacco, such as paper reconstituted tobacco, extruded tobacco, or bandcast reconstituted tobacco, or a combination of bandcast reconstituted tobacco and other forms of tobacco, such as tobacco granules.

[0076] Reconstituted paper tobacco refers to a tobacco material formed by a process in which a tobacco feedstock is extracted with a solvent to obtain a residue containing extracts of soluble substances and fibrous material, and subsequently, the extract (typically after concentration and optionally after further processing) is deposited onto the fibrous material, thereby recombining the fibrous material from the residue (typically after purification of the fibrous material and optionally with the addition of some non-tobacco fibers). The recombination process is similar to the paper manufacturing process.

[0077] The paper-reconstituted tobacco may be any type of paper-reconstituted tobacco known in the art. In certain embodiments, the paper-reconstituted tobacco is manufactured from a feedstock comprising one or more of tobacco strips, tobacco stems, and whole tobacco leaves. In additional embodiments, the paper-reconstituted tobacco is manufactured from a feedstock consisting of tobacco strips and / or whole tobacco leaves, and tobacco stems.

[0078] In some embodiments, paper-reconstructed cigarettes are manufactured from puffed cigarettes. For example, paper-reconstructed cigarettes can be manufactured from crushed puffed cigarettes.

[0079] Paper-reconstructed cigarettes for use in the tobacco materials described in this specification may be manufactured by methods known to those skilled in the art for manufacturing paper-reconstructed cigarettes.

[0080] In some embodiments, the first fibrous material comprising tobacco material may comprise an amorphous solid. In some embodiments, the first fibrous material comprises a corrugated and aggregated amorphous solid. In some embodiments, the amorphous solid is provided on a support for supporting a sheet of aerosol-generating material. In some embodiments, the sheet of aerosol-generating material and the support may be in the form of a laminate.

[0081] In some embodiments, the support may include a second fibrous material comprising a non-tobacco plant material.

[0082] A method for manufacturing an amorphous solid may include: a step of forming a slurry comprising a gelling agent, an aerosol forming agent, and a tobacco material; a step of forming a layer of the slurry; and a step of drying the slurry to provide an amorphous solid.

[0083] Amorphous solids can generally be formed by a type of casting process comprising casting a slurry onto a conveyor belt or other support surface, drying the cast slurry to form a sheet of amorphous solid, and removing the sheet of amorphous solid from the support surface. The sheet can be cast as a continuous sheet.

[0084] The second fibrous material may be manufactured in a manner similar to the first fibrous material. For example, the second fibrous material may be a reconstructed material, may be manufactured by a papermaking process, may be extruded; may be bandcast; may be granules; or any other processing known to those skilled in the art may be used.

[0085] In some embodiments, the aerosol-generating material comprises a single sheet of material that may be shredded, corrugated and aggregated, or arranged in any other way. In these embodiments, the first fibrous material and the second fibrous material may be combined in the same sheet or in the same amorphous solid. The first and second fibrous materials may be arranged using any of the processing techniques disclosed herein. For example, the first and second fibrous materials may be combined in a papermaking process; in an extruded material; in a bandcast material; or in another form typically used in the tobacco industry.

[0086] In some embodiments, the first fibrous material and the second fibrous material are separate components of the aerosol-generating material. For example, the first fibrous material and the second fibrous material may be manufactured separately according to any of the manufacturing methods disclosed herein and then combined to form the aerosol-generating material. Manufacturing the separate first and second fibrous materials may provide a different sensory experience to the consumer compared to an aerosol-generating material comprising the first and second fibrous materials mixed / blended.

[0087] In some embodiments, the tobacco material may be "treated tobacco." As used herein, the term "treated tobacco" refers to tobacco that has undergone a treatment process.

[0088] In some embodiments, the treated tobacco material may have a low microbial content. As used herein, the term "microbial content" refers to the amount of microorganisms present. The term "microbial" may be used interchangeably with the term "microbiological." In some embodiments, the APC of the tobacco material may indicate the microbial content of the tobacco material. In some embodiments, an APC of about 1000 CFU / g or less may be considered a low microbial content. In some embodiments, an APC of about 100 CFU / g or less may be considered a low microbial content. In some embodiments, an APC of about 20 CFU / g or less may be considered a low microbial content. In some embodiments, the microbial content of the treated tobacco material is lower than the microbial content of the untreated tobacco material.

[0089] Alternatively or additionally, the treated tobacco material may have a low mold content. The treated tobacco material may have a mold content of about 10 CFU / g or less. In some embodiments, the mold content of the treated tobacco material is less than 10 CFU / g, less than 8 CFU / g, less than 6 CFU / g, less than 4 CFU / g, or less than 2 CFU / g. The mold content of the treated tobacco material may be lower than the mold content of the untreated tobacco material and / or approximately the same level as the mold content of the untreated tobacco material.

[0090] Alternatively or additionally, the treated tobacco material may have a low yeast content. The treated tobacco material may have a yeast content of about 10 CFU / g or less. In some embodiments, the yeast content of the treated tobacco material is less than 10 CFU / g, less than 8 CFU / g, less than 6 CFU / g, less than 4 CFU / g, or less than 2 CFU / g. The yeast content of the treated tobacco material may be lower than the yeast content of the untreated tobacco material and / or approximately the same level as the yeast content of the untreated tobacco material.

[0091] Alternatively or additionally, the treated tobacco material may have a low E. coli content. The treated tobacco material may have an E. coli bacterial content of about 10 CFU / g or less at 35°C and / or 45°C. In some embodiments, the E. coli content of the treated tobacco material is less than 10 CFU / g, less than 8 CFU / g, less than 6 CFU / g, less than 4 CFU / g, or less than 2 CFU / g at 35°C and / or 45°C. In some embodiments, the E. coli content of the treated tobacco material is 0 CFU / g at 35°C and / or 45°C. The E. coli content of the treated tobacco material may be lower than the E. coli content of the untreated tobacco material and / or approximately the same level as the E. coli content of the untreated tobacco material.

[0092] A low microbial, mold, yeast, and / or E. coli content in the treated tobacco material can have the effect of the tobacco material being in good physical condition and / or well preserved. A low microbial, mold, yeast, and / or E. coli content can provide significant benefits in terms of waste reduction and cost by minimizing the occurrence of spoilage and / or rotting in the tobacco material, thereby minimizing the need to dispose of spoiled and / or rotting tobacco material.

[0093] The aerosol generating material comprises a second fibrous material comprising a non-tobacco plant material in an amount greater than about 50% by weight of the aerosol generating material. Accordingly, in some embodiments, the aerosol generating material may be described as comprising a first fibrous material comprising a tobacco material in an amount less than about 50% by weight of the aerosol generating material.

[0094] In some embodiments, the aerosol generating material comprises a second fibrous material comprising a non-tobacco plant material in an amount exceeding about 55% by weight of the aerosol generating material, for example, exceeding about 60%, exceeding about 65%, exceeding about 70%, exceeding about 75%, exceeding about 80%, exceeding about 85%, exceeding about 90%, and exceeding about 95% by weight of the aerosol generating material.

[0095] In some embodiments, the aerosol generating material comprises a first fibrous material comprising a tobacco material in an amount of less than about 50% by weight of the aerosol generating material, such as less than about 45%, less than about 40%, less than about 35%, less than about 30%, less than about 25%, less than about 20%, less than about 15%, less than about 10%, or less than about 5% by weight of the aerosol generating material.

[0096] In some embodiments, the aerosol generating material comprises a first fibrous material comprising a tobacco material in an amount of about 10% by weight of the aerosol generating material, and a second fibrous material comprising a non-tobacco plant material in an amount of about 90% by weight of the aerosol generating material.

[0097] In some embodiments, the aerosol generating material comprises a first fibrous material comprising a tobacco material in an amount of about 20% by weight of the aerosol generating material, and a second fibrous material comprising a non-tobacco plant material in an amount of about 80% by weight of the aerosol generating material.

[0098] In some embodiments, the aerosol generating material comprises a first fibrous material comprising a tobacco material in an amount of about 15% by weight of the aerosol generating material, and a second fibrous material comprising a non-tobacco plant material in an amount of about 85% by weight of the aerosol generating material.

[0099] In some embodiments, the aerosol generating material comprises a first fibrous material and a second fibrous material in a ratio of about 1:3 to about 1:10, for example, a ratio of about 1:4 to about 1:10, for example, a ratio of about 1:5 to about 1:10, for example, a ratio of about 1:6 to about 1:10, for example, a ratio of about 1:7 to about 1:10, for example, a ratio of about 1:8 to about 1:10, for example, a ratio of about 1:9.

[0100] As used herein, the term "fill value" is a measure of a material's ability to occupy a specific volume at a given moisture content. A high fill value indicates that a lower weight of material is required to produce a load of a given circumference, volume, and length at acceptable hardness / firmness levels compared to a material having a low fill value.

[0101] In some embodiments, the non-tobacco plant material is about 4 cm 3 / g to about 7 cm 3 It has a charge value of / g. For example, the charge value is approximately 4.5 cm 3 / g to about 7 cm 3 / g, for example, about 5 cm 3 / g to about 7 cm 3 / g, for example, about 5 cm 3 / g to about 6.5 cm 3 / g, for example, about 5.5 cm 3 / g to about 6.5 cm 3 It can be / g.

[0102] In some embodiments, the aerosol-generating material is about 4 cm 3 / g to about 7 cm 3 It has a charge value of / g. For example, the charge value is approximately 4.5 cm 3 / g to about 7 cm 3 / g, for example, about 5 cm 3 / g to about 7 cm 3 / g, for example, about 5 cm 3 / g to about 6.5 cm 3 / g, for example, about 5.5 cm 3 / g to about 6.5 cm 3 It can be / g.

[0103] Test Method A

[0104] The charge value is measured according to the following process.

[0105] A 15 g sample of non-tobacco plant material was placed into a 60 mm diameter cylinder of a densimeter, and the material was compressed with a 1 kg piston for 30 seconds. The height of the piston and the moisture content of the samples were measured on the densimeter. The fill values ​​of the samples were calculated according to the following equations.

[0106] The volume occupied by the plant material upon compression was determined using Equation 1:

[0107] Equation 1

[0108]

[0109] r = radius of the cylinder (cm)

[0110] h = measured height

[0111] The filling value was subsequently determined using the measured volume and mass of the plant material according to Equation 2:

[0112] Equation 2

[0113]

[0114] The filling value was corrected for moisture content using Equation 3:

[0115] Equation 3

[0116]

[0117] FV0 = Moisture content M O Charge value in %

[0118] FV = Filling value determined at moisture content M% (cm²) 3 / 10g)

[0119] M O = 13.5% (Target moisture content)

[0120] M = Actual moisture content of plant materials (%)

[0121] 0.8 = constant

[0122] Moisture content (oven volatiles) is measured by the loss of mass when the sample is dried in a forced-draft oven at a temperature of 100°C ± 1°C for 3 hours ± 0.5 minutes. After drying, the sample is cooled to room temperature in a desiccator for about 30 minutes to cool the sample.

[0123] Using materials with relatively high fill values ​​can lead to a reduction in the weight of the aerosol-generating material and consequently the article, because a lower mass of expanded material is required to fill a given volume of the article compared to materials with relatively low fill values.

[0124] Expanded materials typically undergo an expansion process. Expansion entails an increase in the surface area and spacing between the fibers of the material. After the expansion process, the material has a higher fill value but a lower density than the material prior to the expansion process. Expansion processes can be performed on non-tobacco plant materials and tobacco materials.

[0125] Typically, the expansion process involves rapidly increasing the temperature and / or pressure of a solid material containing a fluid (e.g., water), causing the fluid to be rapidly released from the material. This usually entails a phase change of the fluid (e.g., water changing from liquid to gas) and an increase in the fluid's volume. The rapid release and expansion within the fluid cause the fluid to be released from the solid material. Simultaneously, the solid material expands to occupy a larger volume. While fluids are often naturally present in solid materials, additional fluids can be introduced (optionally under pressure) by impregnation or absorption of the fluid into the solid material.

[0126] One such expansion process that can be used is dry ice expansion.

[0127] Dry ice expansion involves infiltrating the material with liquid carbon dioxide prior to heating. The resulting carbon dioxide gas causes the material to expand. Additional methods involve treating the material with solid materials that decompose upon heating to generate gases that serve to expand the material. Other methods involve treating the material with gas-containing liquids, such as carbon dioxide-containing liquids, under pressure to impregnate the material. The impregnated material is then heated or the pressure is reduced to cause the release of gases and the expansion of the material. Additional techniques involve treating the material with gases that react to form solid chemical reaction products within the material; for example, carbon dioxide and ammonia react to form ammonium carbonate. These solid reaction products are subsequently decomposed by heat to generate gases within the material, which cause the material to expand upon release.

[0128] The tobacco material to be expanded may be of various forms, such as laminas or stems. For example, tobacco stems may be expanded using various types of heat treatment or microwave energy. Freeze-drying of vegetable materials may also be used to obtain an increase in volume (and thus in packing value). Continuous drying techniques may also be used to expand cut stems, such as air drying and fluidized bed drying. Similar techniques may be used to expand non-tobacco vegetable materials, such as those described herein.

[0129] In some embodiments, the tobacco material is dry ice expanded tobacco (DIET) or expanded tobacco stem.

[0130] In some embodiments, the aerosol generating material includes a nicotine source. For example, the nicotine source may be the tobacco material itself.

[0131] In some embodiments, the aerosol generating material comprises at least one additional nicotine salt. For example, the aerosol generating material may additionally comprise nicotine benzoate, nicotine levulinate, nicotine lactate, nicotine citrate, or mixtures thereof. If the aerosol generating material comprises two or more nicotine salts, the total amount of nicotine salts in the aerosol generating material may be about 1% to about 10% by dry weight. For example, the aerosol generating material may have a total amount of nicotine salts of about 1% to about 9% by dry weight; about 1% to about 8% by dry weight; about 2% to about 6% by dry weight; or about 3% to about 5% by dry weight.

[0132] In some embodiments, the aerosol generating material comprises a free base nicotine and an organic acid. In some embodiments, the acid is selected from the group consisting of levulinic acid, lactic acid, benzoic acid, citric acid, 2-methylbutyric acid, or 2-methylvaleric acid. In some embodiments, the acid is benzoic acid. In some embodiments, the acid is levulinic acid. The total amount of acid may be about 0.1% to about 5% based on the weight of the aerosol generating material. For example, the total amount of acid may be about 0.1% to about 5%, about 0.5% to about 5%, about 1% to about 5%, about 1.5% to about 5%, about 2% to about 5%, or about 2.5% to about 5% based on the weight of the aerosol generating material. For example, the total amount of acid may be about 2.5% to about 5%, about 2.5% to about 4.5%, about 2.5% to about 4%, about 2.5% to about 3.5%, or about 2.5% to about 3% based on the weight of the aerosol-generating material.

[0133] In some embodiments, the aerosol-generating material comprises an aerosol-forming agent / aerosol-forming agent material. The total amount of the aerosol-forming agent may be about 10% to about 30% based on the weight of the aerosol-generating material. In some embodiments, the total amount of the aerosol-forming agent is about 10% to about 28% based on the weight of the aerosol-generating material, e.g., about 10% to about 26% based on the weight of the aerosol-generating material, e.g., about 10% to about 24%, e.g., about 10% to about 22%, e.g., about 10% to about 20%, e.g., about 10% to about 18%, e.g., about 10% to about 16%, e.g., about 12% to about 16%, e.g., about 14% to about 16% based on the weight of the aerosol-generating material. In some embodiments, the total amount of the aerosol-forming agent material is about 15% based on the weight of the aerosol-generating material. If an aerosol-generating material contains more than about 20% of an aerosol-forming agent based on the weight of the aerosol-generating material, the aerosol-generating material may become "sticky" during storage, which can lead to processability problems.

[0134] In this context, an "aerosol former" is a formulation or material that promotes the generation of an aerosol. An aerosol former can promote the generation of an aerosol by facilitating initial vaporization and / or the condensation of a gas into an inhalable solid and / or liquid aerosol. In some embodiments, an aerosol former can improve flavor delivery from the aerosol-generating material.

[0135] Aerosol-forming materials have been found to improve the sensory performance of articles intended for use with an aerosol-generating device comprising an aerosol-generating material by helping to deliver compounds, such as flavor compounds, from a fibrous material to a consumer. In some embodiments, the aerosol-forming materials described herein have a flavor and / or include the flavor described herein.

[0136] Generally, any suitable aerosol-forming agent may be included in the aerosol-forming material of the present invention. Suitable aerosol-forming agents include, but are not limited to: polyols such as sorbitol and glycerol, and glycols such as propylene glycol or triethylene glycol; monohydric alcohols, high-boiling point hydrocarbons, acids such as lactic acid, glycerol derivatives, esters such as diacetin, triacetin, triethylene glycol diacetate, and triethyl citrate, or mystates including ethyl myristate and isopropyl myristate, and non-polyols such as aliphatic carboxylic acid esters such as methyl stearate, dimethyl dodecanedioate and dimethyl tetradecanedioate.

[0137] In some embodiments, the aerosol-forming agent is selected from the group consisting of 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, propylene carbonate, and mixtures thereof.

[0138] In some embodiments, the aerosol-generating material has a moisture content of about 3% to about 8%. For example, the aerosol-generating material has a moisture content of about 4% to about 7%, and for example, about 5% to about 6%. In some embodiments, the aerosol-generating material contains a moisture content of about 5%.

[0139] In some embodiments, the aerosol-generating material has a thickness of about 250 μm to about 450 μm. In some embodiments, the aerosol-generating material has a thickness of about 250 μm to about 400 μm, e.g., about 280 μm to about 490 μm. In some embodiments, the aerosol-generating material has a thickness of about 300 μm to about 400 μm. For example, the thickness may be about 310 μm to about 390 μm. For example, the thickness may be about 310 μm to about 380 μm. For example, the thickness may be about 320 μm to about 370 μm. For example, the thickness may be about 320 μm to about 360 μm. For example, the thickness may be about 320 μm to about 350 μm. For example, the thickness may be about 320 μm to about 340 μm. For example, the thickness may be about 325 μm to about 340 μm. For example, the thickness may be about 330 μm to about 340 μm.

[0140] The aerosol generating material may include expanded non-tobacco plant material and / or expanded tobacco, e.g., DIET. The aerosol generating material may be included in an amount of about 10% by weight of the aerosol generating material.

[0141] Examples

[0142] Selected aerosol generating materials were prepared according to the values ​​in Table 1.

[0143] Aerosol generating materials Non-tobacco plant-based materials Tobacco materials Ratio of non-tobacco plant materials to tobacco materials Example 1 Rooibos DIET 4:1 Example 2 Rooibos DIET 9:1 Example 3 Rooibos Virginia 4:1 Example 4 Rooibos Virginia 9:1

[0144] The advantages and features of the present disclosure are merely representative samples of embodiments and are not exhaustive and / or exclusive. They are presented only to aid in understanding and teaching the claimed features. The advantages, embodiments, examples, functions, features, structures, and / or other aspects of the present disclosure should not be construed as limitations to the present disclosure or to equivalents of the claims as defined by the claims, and it should be understood that other embodiments may be utilized and modifications may be made without departing from the scope and / or spirit of the present disclosure.

Claims

Claim 1 An aerosol generating material comprising a first fibrous material comprising a tobacco material and a second fibrous material comprising a non-tobacco plant material, wherein the aerosol generating material comprises the second fibrous material in an amount exceeding about 50% by weight of the aerosol generating material. Claim 2 In claim 1, the non-tobacco plant material is selected from a list consisting of rooibos, star anise, fennel, mint, and combinations thereof, and preferably the plant material is rooibos, an aerosol generating material. Claim 3 In claim 1 or 2, the plant material is about 4 cm 3 / g to about 7 cm 3 Aerosol generating material having a fill value of / g. Claim 4 In any one of claims 1 to 3, the tobacco material is selected from a list consisting of dry-ice expanded tobacco (DIET), leaf tobacco, tobacco stem, tobacco fiber, crushed tobacco, reconstituted tobacco, extruded tobacco, laminar tobacco, and combinations thereof, and preferably the tobacco material comprises Virginia tobacco, an aerosol generating material. Claim 5 An aerosol generating material according to any one of claims 1 to 4, wherein the first fibrous material is present in an amount of less than about 30% based on the weight of the aerosol generating material. Claim 6 An aerosol generating material according to any one of claims 1 to 5, wherein the first fibrous material and the second fibrous material are included in a ratio of about 1:3 to about 1:

10. Claim 7 An aerosol generating material comprising a nicotine source further comprising, in any one of claims 1 to 6. Claim 8 In claim 7, the aerosol-generating material, wherein the nicotine source is a nicotine salt, such as nicotine benzoate, nicotine levulinate, nicotine citrate, nicotine lactate, or a combination thereof. Claim 9 In claim 8, the nicotine source is free base nicotine, and preferably further comprises organic acids, such as lactic acid, levulinic acid, benzoic acid, citric acid, 2-methylbutyric acid, 2-methylvaleric acid, and mixtures thereof, an aerosol generating material. Claim 10 An aerosol-generating material according to any one of claims 1 to 9, further comprising an aerosol-forming agent, wherein the aerosol-forming agent is, for example, an aerosol-forming agent selected from a list consisting of glycerin, 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 carbonate. Claim 11 In claim 10, the aerosol-forming material comprises the aerosol-forming agent in an amount of about 10% to about 30% based on dry weight. Claim 12 An aerosol-generating material comprising a moisture content of about 4% to about 20% in any one of claims 1 to 11. Claim 13 In any one of claims 1 to 12, the aerosol generating material has a thickness of about 200 μm to about 450 μm. Claim 14 As an aerosol generating load, claim 1 An aerosol generating rod comprising an aerosol generating material according to any one of claims 1 to 13. Claim 15 A delivery system comprising an aerosol generating material according to any one of claims 1 to 13, or an aerosol generating rod according to claim 14.

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