Aerosol-Generating Materials

Abstract

Described herein are aerosol-forming materials that include a fiber material and a non-nicotine active, as well as rods, articles, and delivery systems that include the aerosol-forming materials.

Description

[Technical Field]

[0001] The present disclosure relates to an aerosol-forming material including a fibrous material, and a non-combustion aerosol delivery system including the aerosol-forming material. [Background technology]

[0002] The aerosol-forming material is typically heated, for example, by a non-combustion aerosol delivery system, to form an aerosol that can be inhaled by a consumer. The aerosol-forming material may be made from a variety of sources, including tobacco and / or non-tobacco materials. Summary of the Invention

[0003] According to a first aspect, an aerosol-forming material is described that includes a fiber material and a non-nicotine active.

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

[0005] According to a third aspect, an article is described comprising an aerosol-generating material according to the first aspect or an aerosol-generating rod according to the second aspect.

[0006] According to a fourth aspect, a delivery system is described comprising an aerosol-generating material according to the first aspect, an aerosol-generating rod according to the second aspect, or an article according to the third aspect.

[0007] Embodiments of the present invention will now be described, by way of example only, with reference to the accompanying drawings, in which: [Brief explanation of the drawings]

[0008] [Figure 1] FIG. 1 shows a flowchart of a method of making an aerosol-forming material. DETAILED DESCRIPTION OF THE INVENTION

[0009] The present invention relates to aerosol-generating materials. The present invention also relates to methods of making the aerosol-generating materials, uses of the aerosol-generating materials, articles for use in delivery systems, and systems comprising the aerosol-generating materials and devices.

[0010] The aerosol-generating material includes an aerosolizable component. During use, the aerosol-generating material generates an aerosol, e.g., a suspension of droplets or fine particles in a gas. The aerosol includes the non-nicotine active and other components generated by the aerosol-generating material. During use, the user inhales the aerosol. Therefore, it is important that the aerosol-generating material generate an aerosol that provides a suitable user experience and satisfaction.

[0011] The composition of the aerosol contributes to the user's experience and satisfaction. One attribute that contributes to the user's experience and satisfaction is the type of active agent in the aerosol, for example, the physiological or psychological effect that the active agent may have on the user. Another attribute that contributes to the user's experience and satisfaction is the perceived harshness of the aerosol.

[0012] Certain actives, when aerosolized, may result in an aerosol with too much perceived harshness for the consumer, or certain actives may provide little or no perceived harshness, which may or may not be preferred by the consumer.

[0013] For example, it may be desirable to control the content and harshness of the active material present in the aerosol.

[0014] In one embodiment, the aerosol-generating material includes a fiber material and a non-nicotine active. Without wishing to be bound by theory, it is hypothesized that the inclusion of a fiber material with a non-nicotine active can affect the perceived harshness of the aerosol, and that selecting an appropriate fiber material can assist in generating a preferred aerosol.

[0015] In some instances, it has been found that aerosol-forming materials containing non-nicotine actives may produce aerosols with perceived harshness that is too high for consumers. For example, actives such as cannabinoids or terpenes may be perceived as overly pungent when aerosolized and inhaled by consumers. In other embodiments, non-nicotine actives such as caffeine, taurine, vitamins, and other actives classified as dietary supplements may produce aerosols that are perceived as overly pungent by consumers.

[0016] As used herein, the term "delivery system" is intended to encompass a system that delivers a substance to a user; Combustion aerosol delivery systems, such as cigarettes, cigarillos, cigars, and tobacco for pipes or for hand-rolled or handmade cigarettes (whether based on tobacco, tobacco derivatives, expanded tobacco, reconstituted tobacco, tobacco substitutes, or other smokable materials); Non-combustion aerosol delivery systems that release compounds from aerosol-forming materials without burning the aerosol-forming material, such as electronic cigarettes, tobacco heating products, and hybrid systems that generate aerosols using a combination of aerosol-forming materials; and Aerosol-free delivery systems, such as lozenges, gums, patches, articles containing inhalable powders, and smokeless tobacco products such as snus and snuff, that deliver materials to the user without forming an aerosol Includes:

[0017] According to the present disclosure, a "combustion-based" aerosol delivery system is one in which the constituent aerosol-generating materials (or components thereof) of the aerosol delivery system are combusted or burned during use to facilitate delivery of at least one substance to a user.

[0018] In some embodiments, the delivery system is a combustion aerosol delivery system, such as a system selected from the group consisting of a cigarette, a cigarillo, and a cigar.

[0019] In some embodiments, the present disclosure relates to components for use in combustion aerosol delivery systems, such as aerosol modifier-releasing components such as filters, filter rods, filter segments, tobacco rods, spills, capsules, threads, or beads, or papers such as plug wrap, tipping paper, or cigarette paper.

[0020] According to the present disclosure, a "non-combustion" aerosol delivery system is one in which the constituent aerosol-generating materials (or components thereof) of the aerosol delivery system are not or are not combusted to facilitate delivery to a user.

[0021] In some embodiments, the delivery system is a non-combustion aerosol delivery system, such as a powered non-combustion aerosol delivery system.

[0022] In some embodiments, the non-combustion aerosol delivery system is an electronic cigarette, also known as a vaporization device or electronic nicotine delivery system (END). It is understood that such electronic cigarettes or vaporization devices need not be limited to use with nicotine, but may be utilized to aerosolize non-nicotine actives.

[0023] In some embodiments, the non-combustion aerosol delivery system is a tobacco heating system, also known as a non-combustion heating system, it being understood again that such systems can be used to aerosolize non-nicotine actives.

[0024] In some embodiments, the non-combustion aerosol delivery system is a hybrid system that generates an aerosol using a combination of aerosol-generating materials, where one or more aerosol-generating materials can be heated. Each of the aerosol-generating materials can be, for example, a solid, liquid, or gel form. In some embodiments, the hybrid system includes a liquid or gel aerosol-generating material and a solid aerosol-generating material. The solid aerosol-generating material can include, for example, a tobacco material, a non-tobacco product, or a non-nicotine active.

[0025] 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.

[0026] In some embodiments, the present disclosure relates to consumables that include aerosol-generating materials and are configured for use with non-combustion aerosol delivery devices. These consumables may be referred to as articles throughout this disclosure.

[0027] It is envisioned that in some embodiments, a consumable that itself includes a means for powering an aerosol generating component may itself form a non-combustion aerosol delivery system.

[0028] In some embodiments, the non-combustion aerosol delivery system may include a power source and a controller. The power source may be a power source or a heat-generating power source. In some embodiments, the heat-generating power source comprises a carbon substrate that can be energized to deliver power in the form of heat to an aerosol-generating material or a heat transfer material proximate the heat-generating power source. In some embodiments, the power source, such as the heat-generating power source, is provided with an article to form the non-combustion aerosol delivery system.

[0029] In some embodiments, the non-combustion aerosol delivery system may include an area for receiving a consumable, an aerosol generator, an aerosol-generating area, a housing, a mouthpiece, a filter, and / or an aerosol modifier.

[0030] In some embodiments, a consumable for use with a non-combustion aerosol delivery device may comprise an aerosol-generating material, an aerosol-generating material storage region, an aerosol-generating material transfer component, an aerosol generator, an aerosol-generating region, a housing, a packaging material, a filter, a mouthpiece, and / or an aerosol modifier.

[0031] The substance to be delivered includes a non-nicotine active substance.

[0032] As used herein, an active substance may be a physiologically active material, which is a material intended to achieve or enhance a physiological response. The active substance may be selected from, for example, dietary supplements, nootropics, and psychoactive substances. The active substance may be naturally occurring or synthetically obtained. The active substance may include, for example, 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 cannabis or another botanical substance.

[0033] In some embodiments, the active substance is a legally permitted recreational drug.

[0034] In some embodiments, non-nicotine actives include caffeine, taurine, L-theanine, vitamin B1, vitamin B2, vitamin B5, vitamin B6, vitamin B7, vitamin C, ginseng extract, chamomile extract, lemon balm extract, and mixtures thereof.

[0035] As discussed herein, the active substance may include one or more components, derivatives, or extracts of cannabis, such as one or more cannabinoids or terpenes.

[0036] In some embodiments, the non-nicotine active substance comprises a cannabinoid selected from the list consisting of cannabigerol (CBG), cannabichromene (CBC), cannabidiol (CBD), tetrahydrocannabinol (THC), cannabinol (CBN), cannabinodiol (CBDL), cannabicyclol (CBL), cannabivarin (CBV), tetrahydrocannabivarin (THCV), cannabidivarin (CBDV), cannabichromevarin (CBCV), cannabigerovarin (CBGV), cannabigerol monomethyl ether (CBGM), cannabinerolic acid, cannabidiolic acid (CBDA), cannabinol propyl variant (CBNV), cannbitriol (CBO), tetrahydrocannabinolic acid (THCA), and tetrahydrocannabivarinic acid (THCV A), and mixtures thereof.

[0037] The active substance may be cannabidiol, or CBD, or a derivative thereof.

[0038] The active substance may be tetrahydrocannabinol, or THC, or a derivative thereof.

[0039] As used herein, the term "botanical material" includes any material derived from a plant, including, but not limited to, extracts, leaves, bark, fiber, stems, roots, seeds, flowers, fruit, pollen, husks, shells, etc. Alternatively, the material may include synthetically derived active compounds that are naturally present in the botanical material. The material may be in the form of a liquid, gas, solid, powder, dust, ground particles, granules, pellets, chips, strips, sheets, etc. Exemplary botanicals include tobacco, eucalyptus, star anise, hemp, cocoa, cannabis, fennel, lemongrass, peppermint, spearmint, rooibos, chamomile, flax, ginger, ginkgo, hazel, hibiscus, bay leaf, licorice, matcha, yerba mate, orange peel, papaya, rose, sage, tea such as green tea or black tea, thyme, clove, cinnamon, coffee, aniseed, basil, bay leaf, cardamom, coriander, cumin, nutmeg, oregano, paprika, rosemary, saffron, raspberry ... Bender, lemon peel, mint, juniper, elderflower, vanilla, wintergreen, shiso, curcuma, turmeric, sandalwood, cilantro, bergamot, orange blossom, myrtle, blackcurrant, valerian, pimento, mace, damiana, marjoram, olive, lemon balm, lemon basil, chives, kahlua, verbena, tarragon, geranium, mulberry, ginseng, theanine, theacrine, maca, ashwagandha, damiana, guarana, chlorophyll, baobab, or any combination thereof.The mint may be selected from the following mint varieties: Mentha arventis, Mentha cv, Egyptian mint (Mentha niliaca), Mentha piperita, Cologne mint (Mentha piperita citrata cv), Candy mint (Mentha piperita cv), Curly mint (Mentha spicata crispa), Kentucky Colonel mint (Mentha cardifolia), Horse mint (Mentha longifolia), Pineapple mint (Mentha suaveolens variegata), Pennyroyal mint (Mentha pulegium), Green mint (Mentha spicata cv), and Apple mint (Mentha suaveolens).

[0040] In some embodiments, the active agent comprises or is derived from one or more botanical substances, or components, derivatives, or extracts thereof, and the botanical substances are selected from eucalyptus, cocoa, and hemp.

[0041] In some embodiments, the active agent comprises or is derived from one or more botanical substances, or components, derivatives, or extracts thereof, and the botanical substances are selected from star anise, rooibos, mint, and fennel.

[0042] In one embodiment, the aerosol-forming material includes a fiber material and a non-nicotine active.

[0043] In some embodiments, the aerosol-forming material comprises a total fibrous material content of from about 70% to about 95% by weight on a dry weight basis.

[0044] An aerosol is a suspension of liquid, solid, or both particles in a gas.

[0045] In some embodiments, the substance to be delivered comprises a flavor.

[0046] In some embodiments, the non-nicotine active is a flavor.

[0047] As used herein, the terms "flavor" and "flavoring agent" refer to materials that may be used, where local regulations permit, to create a desired taste, aroma, or other somatic sensation in products intended for adult consumers.Flavors and flavorings include naturally occurring flavor materials, botanicals, extracts of botanicals, synthetically derived materials, or combinations thereof (e.g., tobacco, cannabis, licorice, hydrangea, eugenol, magnolia leaf, chamomile, fenugreek, clove, maple, matcha, menthol, Japanese mint, aniseed, cinnamon, turmeric, Indian spices, Asian spices, herbs, wintergreen, cherry, berry, red berry, cranberry, peach, apple, orange, mango, clementine, lemon). , lime, tropical fruits, papaya, rhubarb, grapes, durian, dragon fruit, cucumber, blueberry, mulberry, citrus fruits, Drambuie, bourbon, scotch, whiskey, gin, tequila, rum, spearmint, peppermint, lavender, aloe vera, cardamom, celery, cascarilla, nutmeg, sandalwood, bergamot, geranium, khat, eggplant, betel nut, shisha, pine, honey essence, rose oil, vanilla, lemon oil, orange oil, orange blossom, cherry blossom, cassia, caraway, cognac, jasmine, ylang-ylang Orchids, sage, fennel, wasabi, bell peppers, ginger, coriander, coffee, hemp, peppermint oil from any species of the genus Mentha, eucalyptus, star anise, cocoa, lemongrass, rooibos, flax, ginkgo, hazel, hibiscus, bay leaf, yerba mate, orange peel, rose, tea such as green tea or black tea, thyme, juniper, elderflower, basil, bay leaf, cumin, oregano, paprika, rosemary, saffron, lemon peel, mint, shiso, curcuma, cilantro, myrtle, black currant, valerian, pimento, mace, damiento, maize The present invention may also include other additives such as joram, olive, lemon balm, lemon basil, chives, Calvi, verbena, tarragon, limonene, thymol, camphene), flavor enhancers, bitter taste receptor site blockers, sensory receptor site activators or stimulants, sugars and / or sugar substitutes (e.g., sucralose, acesulfame potassium, aspartame, saccharin, cyclamate, lactose, sucrose, glucose, fructose, sorbitol, or mannitol), and charcoal, chlorophyll, minerals, botanicals, or breath fresheners.The flavors and flavorings may be imitation, synthetic, or natural ingredients, or blends thereof. The flavors and flavorings may be in any suitable form, for example, a liquid such as an oil, a solid such as a powder, or a gas.

[0048] In some embodiments, the flavor comprises menthol, spearmint, and / or peppermint. In some embodiments, the flavor comprises cucumber, blueberry, citrus, and / or red berry flavor components. 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.

[0049] In some embodiments, the flavor may include a sensation elicitor intended to achieve somatic sensations typically chemically induced and perceived by stimulation of the fifth cranial nerve (trigeminal nerve) in addition to, or instead of, aroma or taste nerves, and may include agents that produce heating, cooling, tingling, or numbing effects. Suitable heating agents may be, but are not limited to, vanillyl ethyl ether, and suitable cooling agents may be, but are not limited to, eucolyptol, WS-3.

[0050] In some embodiments, the flavor comprises menthol, spearmint, and / or peppermint. In some embodiments, the flavor comprises berry fruit, citrus, and / or tropical fruit flavor components. In some embodiments, the flavor may comprise cucumber, blueberry, citrus, pineapple, strawberry, and / or red berry. In one embodiment, the aerosol-forming material comprises menthol.

[0051] In some embodiments, the flavors added to the aerosol-forming material may be selected to enhance the underlying properties of the aerosol-forming material. For example, as described herein, it may be preferable for the fiber material to include botanical material. In such an example, for example, if the aerosol-forming material utilizes rooibos, fennel, star anise, and / or mint, the botanical material may produce a particularly neutral aroma profile. When one or more of these botanicals are used, the aroma may be enhanced when paired with flavors such as menthol, spearmint, and / or peppermint, berry fruit, citrus fruit, and / or tropical fruit, or any combination of these flavors.

[0052] An aerosol-forming material is a material that can generate an aerosol when, for example, heated, irradiated, or otherwise energized. The aerosol-forming material may be in solid, liquid, or semi-solid (such as a gel) form, for example, which may or may not contain active substances and / or flavorings.

[0053] The aerosol-forming materials may include one or more active agents and / or flavors, one or more aerosol former materials, and optionally one or more other functional materials.

[0054] The aerosol-generating material may comprise or be a continuous sheet of material. The sheet may be in the form of a wrapper, gathered to form a gathered sheet, or chopped to form a chopped sheet. The chopped sheet may comprise one or more strands or strips of aerosol-generating material.

[0055] The sheet or shredded sheet includes a first surface and a second surface opposite the first surface. The first and second surfaces have matching dimensions. The first and second surfaces of the sheet or shredded sheet may have any shape. For example, the first and second surfaces may be square, rectangular, oval, or circular. Irregular shapes are also contemplated.

[0056] The first and / or second surfaces of the sheet or shredded sheet may be relatively uniform (e.g., relatively smooth), or may be uneven or irregular. For example, the first and / or second surfaces of the sheet may be textured or patterned to define a relatively rough surface. In some embodiments, the first and / or second surfaces are relatively rough.

[0057] The smoothness of the first and second surfaces may be affected by many factors, such as the areal density of the sheet or shredded sheet, the nature of the components that make up the aerosolizable material, or whether the surface of the material has been manipulated, for example, embossed, scored, or otherwise modified to impart a pattern or texture.

[0058] The areas of the first and second surfaces are defined by a first dimension (e.g., width) and a second dimension (e.g., length), respectively. The first and second dimensional measurements may have a ratio of 1:1 or greater than 1:1, and thus the sheet or shredded sheet may have an "aspect ratio" of 1:1 or greater than 1:1. As used herein, the term "aspect ratio" is the ratio of the first dimensional measurement of the first or second surface to the second dimensional measurement of the first or second surface. A "1:1 aspect ratio" means that the first dimensional measurement (e.g., width) and the second dimensional measurement (e.g., length) are identical. An "aspect ratio greater than 1:1" means that the first dimensional measurement (e.g., width) and the second dimensional measurement (e.g., length) are different. In some embodiments, the first and second surfaces of the sheet or shredded sheet have an aspect ratio of greater than 1:1, such as 1:2, 1:3, 1:4, 1:5, 1:6, 1:7, or more.

[0059] The shredded sheet may comprise one or more strands or strips of aerosolizable material. In some embodiments, the shredded sheet comprises multiple (e.g., two or more) strands or strips of aerosolizable material. The strands or strips of aerosolizable material may have an aspect ratio of 1:1. In one embodiment, the strands or strips of aerosolizable material have an aspect ratio of greater than 1:1. In some embodiments, the strands or strips of aerosolizable material have an aspect ratio of about 1:5 to about 1:16, or about 1:5, 1:6, 1:7, 1:8, 1:9, 1:10, 1:11, or 1:12. When the aspect ratio of the strands or strips is greater than 1:1, the strands or strips comprise a longitudinal dimension or length extending between a first end of the strand or strip and a second end of the strand or strip.

[0060] When a shredded sheet includes multiple strands or strips of material, the dimensions of each strand or strip may vary among different strands or strips. For example, a shredded sheet may include a first collection of strands or strips and a second collection of strands or strips, where the dimensions of the strands or strips in the first collection are different from the dimensions of the strands or strips in the second collection. In other words, the multiple strands or strips may include a first collection of strands or strips having a first aspect ratio and a second collection of strands or strips having a second aspect ratio that is different from the first aspect ratio.

[0061] The first dimension or cut width of the strand or strip of aerosolizable material is between 0.9 mm and 1.5 mm. The inventors have found that when strands or strips of aerosolizable material having a cut width of less than 0.9 mm are incorporated into an article for use in a non-combustion aerosol delivery system, the pressure drop across the article may be increased to a level that makes the article unsuitable for use in a non-combustion aerosol delivery device. However, if the strand or strip has a cut width greater than 2 mm (e.g., greater than 2 mm), it may be difficult to insert the strand or strip of aerosolizable material into the article during manufacture of the article. In a preferred embodiment, the cut width of the strand or strip of aerosolizable material is between about 1 mm and 1.5 mm.

[0062] The strands or strips of material are formed by shredding a sheet of aerosolizable material. The sheet of aerosolizable material may be cut widthwise, for example, by a cross-cut shredding method, to define a cut length of the strands or strips of aerosolizable material in addition to the cut width. The cut length of the shredded aerosolizable material is preferably at least 5 mm, e.g., at least 10 mm, or at least 20 mm. The cut length of the shredded aerosolizable material may be less than 60 mm, less than 50 mm, or less than 40 mm.

[0063] In some embodiments, multiple strands or strips of aerosolizable material are provided, wherein at least one of the multiple strands or strips of aerosolizable material has a length greater than about 10 mm. At least one of the multiple strands or strips of aerosolizable material may alternatively or additionally have a length of about 10 mm to about 60 mm, or about 20 mm to about 50 mm. Each of the multiple strands or strips of aerosolizable material may have a length of about 10 mm to about 60 mm, or about 20 mm to about 50 mm.

[0064] A consumable is an article containing or consisting of an aerosol-generating material, some or all of which is intended to be consumed during use by a user. In some embodiments, a consumable for use with a non-combustion aerosol delivery device may include one or more other components, such as an aerosol-generating material storage area, an aerosol-generating material transfer component, an aerosol generator, an aerosol-generating area, a housing, a packaging material, a filter, a mouthpiece, and / or an aerosol modifier. The consumable may also include an aerosol generator, such as a heater, that generates heat upon use to cause the aerosol-generating material to generate an aerosol. The heater may include, for example, a combustible material, a material heatable by electrical conduction, or a susceptor.

[0065] The susceptor is a material that can be heated by penetration of a varying magnetic field, such as an alternating magnetic field. The susceptor may be a conductive material, such that penetration of the varying magnetic field into the conductive material causes induction heating of the heating material. The heating material may be a magnetic material, such that penetration of the varying magnetic field into the magnetic material causes magnetic hysteresis heating of the heating material. The susceptor may be both conductive and magnetic, such that the susceptor is heatable by both heating mechanisms. A device configured to generate a varying magnetic field is referred to herein as a magnetic field generator.

[0066] An aerosol generator is a heater that can interact with an aerosol-generating material to release one or more volatile substances from the aerosol-generating material to form an aerosol. In some embodiments, the aerosol generator can generate an aerosol from the aerosol-generating material without applying heat. For example, the aerosol generator can be capable of generating an aerosol from the aerosol-generating material without applying heat to the aerosol-generating material, such as by one or more of vibrational, mechanical, pressurized, or electrostatic means.

[0067] A heater may be provided in a portion of the housing of the delivery system. The heater may include a base portion that may be disposed in a recess provided in a portion of the body of the device, and the heater may extend or protrude into the heating chamber. The heater may include an elongated heater in the form of a pin. Alternatively, the heater may include other elongated configurations, such as blades.

[0068] In some embodiments, the heating element may be a resistive heating element. In such a configuration, the heating assembly includes a resistive heating generator including components for heating the heater element by a resistive heater element. In this case, current is applied directly to the resistive heater element, and the resulting current flow in the heater element, which acts as a heating element, causes the heater element to heat by Joule heating. The resistive heater element includes a resistive material configured to generate heat when a suitable current passes through the resistive material, and the heating element includes electrical contacts for supplying the current to the resistive material. In one embodiment, the resistive heater element transfers heat to the heater, for example, by conduction. Providing a resistive heating element allows for a compact configuration. Resistive heating provides an efficient configuration.

[0069] In some embodiments, the heating configuration may be induction heating. Induction heating is a process of heating an electrically conductive heating element, such as a susceptor, by electromagnetic induction. The induction heating configuration may include an induction element, e.g., one of many inductor coils, and a device for passing a varying current, such as an alternating current, through the induction element. The varying current in the induction element generates a varying magnetic field. The varying magnetic field penetrates a susceptor suitably positioned relative to the induction element. Induction heating generates heat within the susceptor, allowing for rapid heating, as compared to, for example, conduction heating. Furthermore, no physical contact between the induction element and the susceptor is required, allowing for greater flexibility in construction and application.

[0070] In some embodiments, the fiber material includes a plant material. A fiber material including a plant material may complement the flavor profile of any aerosol generated. For example, a plant material having a relatively neutral flavor profile may be selected. A neutral flavor profile may be described as a flavor profile that contains few strong flavors and / or a flavor profile that easily accommodates a top flavor load without significantly affecting the perception of the top flavor. For example, a fiber material containing reconstituted tobacco material may be described as producing an aerosol with a relatively neutral flavor profile. It may be advantageous to be able to produce an aerosol with a neutral flavor profile similar to reconstituted tobacco, but without using tobacco material.

[0071] In some embodiments, the fibrous material may be referred to as a substrate. It may be preferable for the substrate to be made from a non-tobacco material so that consumers may reduce their use of tobacco-based materials. Consumers may also wish to reduce their use of nicotine and therefore may seek the use of non-nicotine actives. Certain consumers may desire certain non-nicotine actives, such as cannabinoids, due to the physiological and potential psychological effects that such actives may deliver.

[0072] In some embodiments, the plant material may be any non-tobacco plant material. For example, the material may be derived from a species that is a member of the Asteracae family, the Fabaceae family, the Myrtaceae family, the Apiaceae family, Camellia taliensis, the Solanaceae family, the Brassicaceae family, the Caricaceae family, the Asclepiadaceae family, the Equisetaceae family, the Oleaceae family, the Lamiaceae family, and the tisanes. For example, the non-tobacco plant material may be selected from Matricaria species such as chamomile, Pimpinella anisum species such as anise, Foeniculum vulgare species such as fennel, Aspalathus linearis species such as jasmine, lavender, clove, eucalyptus, and rooibos.

[0073] In some embodiments, the fiber material comprises rooibos.

[0074] In some embodiments, the non-tobacco plant material is selected from plant materials containing desirable aroma characteristics for use in non-combustion aerosol delivery systems. For example, the non-tobacco plant material may contain relatively few aroma compounds compared to traditional tobacco materials. Thus, the aerosol generated from the non-tobacco plant material may have a different profile of volatile compounds compared to the aerosol generated from tobacco materials. The non-tobacco plant material may deliver an aerosol that is considered desirable by consumers of tobacco-based delivery systems. In some embodiments, the non-tobacco plant material, when heated, may produce an aerosol with a sensory experience comparable to that provided by traditional 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 medical or sensory properties. In some embodiments, it may be preferable to provide an aerosol-generating material for use in non-combustion aerosol delivery systems that does not include any tobacco plant material.

[0075] As used herein, the term "tobacco material" refers to any material containing tobacco or its derivatives or substitutes. The tobacco material may be in any suitable form. The term "tobacco material" may include one or more of tobacco, tobacco derivatives, expanded tobacco, reconstituted tobacco, or tobacco substitutes. The tobacco material may include one or more of ground tobacco, tobacco fiber, cut tobacco, extruded tobacco, tobacco stems, tobacco lamina, and / or reconstituted tobacco. It is understood that nicotine extracts derived from tobacco material are not considered "tobacco material."

[0076] In some embodiments, it may be preferred that the fibrous material does not contain tobacco material, as certain consumers may prefer to inhale aerosols generated from non-tobacco materials.

[0077] The inventors have determined that the perceived harshness of an aerosol can be modified based on the pH of the aerosol-forming material. For example, it may be preferable for the aerosol-forming material to exhibit a pH that is acidic, neutral, or alkaline, depending on the non-nicotine actives present and the stability of the actives.

[0078] In some embodiments, upon contact with purified water, the aerosol-forming material may exhibit a pH of up to about 6.5, such as a pH of up to about 6.0, such as a pH of up to about 5.5, such as a pH of up to about 5.

[0079] In some embodiments, upon contact with purified water, the aerosol-forming material may exhibit a pH of about 5 to about 8, such as a pH of about 5.5 to about 7.5, for example, a pH of about 6.0 to about 7.0.

[0080] In some embodiments, upon contact with purified water, the aerosol-forming material may exhibit a pH of at least about 6.5, such as a pH of at least about 7.0, such as a pH of at least about 7.5, such as a pH of at least about 8.0, such as a pH of at least about 8.5.

[0081] In particular, it has been determined that certain non-nicotine active substances, such as cannabinoids, may be more stable in their natural acidic form. For example, the inclusion of cannabidiolic acid (CBDA) may be preferable to cannabidiol because CBDA is naturally more stable. The use of CBDA may inherently lower the pH of the aerosol-generating material. In some instances, the use of a non-acidic form of the active substance may be preferable.

[0082] It is understood that measuring the pH of a solid material is not possible, and that to determine the pH of the original material, the material must be introduced into a solvent, where the pH of the solvent may be measured. The pH of an aerosol-forming material may be measured by dissolving or dispersing the aerosol-forming material in purified water and measuring the pH using a conventional pH meter. The pH may be determined by adding 100 g of the aerosol-forming material to purified water, such as 500 mL of purified water. The sample is shaken or stirred for 30 minutes, after which the pH is measured using a conventional pH meter. The pH is measured at room temperature and pressure.

[0083] In some embodiments, the aerosol-forming material comprises a total fiber content of about 70% to about 95% by weight on a dry basis. For example, the total fiber content may be about 70% to about 90% by weight on a dry basis, such as about 70% to about 85% by weight, or about 75% to about 80% by weight. In some embodiments, the total fiber content of the aerosol-forming material is about 75% by weight on a dry basis.

[0084] In some embodiments, the fiber material comprises a first and a second fiber material. In some embodiments, the first fiber material is different from the second fiber material. When the first fiber material is different from the second fiber material, the properties of the aerosol-generating material, such as the generated aerosol, may be modified. For example, two different fiber materials may be combined that complement each other and provide a particularly pleasant / pleasant aerosol for the consumer.

[0085] In some embodiments, the first fiber material comprises a non-tobacco plant material and the second fiber material comprises wood fiber / wood pulp. For example, the non-tobacco plant material may be selected from any of the plant materials discussed herein. Preferably, the non-tobacco plant material is selected from the list consisting of fennel, star anise, mint, and rooibos, and mixtures thereof.

[0086] As used herein, wood fiber and wood pulp may be used to describe cellulose materials derived from cellulose materials that have little or no noticeable flavor. For example, the wood fiber and wood pulp may be similar in nature to the wood fiber / wood pulp used to make paper. The wood fiber and wood pulp may be obtained from non-tobacco materials.

[0087] In some embodiments, the ratio of the first fiber material to the second fiber material may be from about 10:1 to about 2:1. For example, the ratio may be from about 9:1 to about 3:1, such as from about 8:1 to about 4:1, such as from about 7:1 to about 4:1, such as from about 6:1 to about 4:1. In some embodiments, the ratio of the first fiber material to the second fiber material may be about 5:1.

[0088] In some embodiments, modifying the amount of a first fibrous material, e.g., comprising plant material, and a second fibrous material, e.g., comprising wood fiber / wood pulp, allows the aerosol to be modified / tailored to a particular desired profile. For example, increasing the relative amount of non-tobacco plant material compared to wood fiber / wood pulp may increase the amount of aroma compounds derived from the non-tobacco plant material in the aerosol.

[0089] The exact amount of organic acid used in the aerosol-generating material may be defined in several ways. For example, the amount of organic acid used may be defined in relation to the aerosol-generating material, e.g., as a weight percentage of the aerosol-generating material. Alternatively, the amount of organic acid may be defined in relation to the non-nicotine active content of the aerosol-generating material, e.g., by reference to the ratio of moles of non-nicotine active to moles of acid.

[0090] Without wishing to be bound by any particular theory, it is understood that when the amount of acid in the aerosol-generating material is as described herein, the aerosol generated by the aerosol-generating material contains a particularly beneficial ratio of non-nicotine active in the gas phase to non-nicotine active in the fine particle / liquid phase (non-nicotine active (gas):non-nicotine active (fine particle / liquid)). That is, the ratio of non-nicotine active (gas):non-nicotine active (fine particle / liquid) in the aerosol generated by the aerosol-generating material of the present invention provides an improved user experience and satisfaction. This is believed to be because the use of the amount of acid defined herein allows optimal protonation of the non-nicotine active. The aerosol generated by the aerosol-generating material described herein delivers an appropriate amount of non-nicotine active to the user. Furthermore, users report that such aerosol-generating materials are neither overly harsh nor sufficiently harsh. Thus, aerosol-generating materials containing the acids described herein produce aerosols with appropriate perceived harshness.

[0091] 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.

[0092] The term lactic acid is synonymous with the term 2-hydroxypropanoic acid and includes both the D and L enantiomers separately or as mixtures thereof. For example, lactic acid can be a mixture of D-2-hydroxypropanoic acid and L-2-hydroxypropanoic acid (e.g., a racemic mixture). The term levulinic acid is synonymous with the term 4-oxopentanoic acid.

[0093] In particular, it is understood that the total amount of acid defined herein represents the minimum amount of acid necessary to provide an adequate sensory experience: using less than the amount set forth herein results in a suboptimal amount of active reaching the user.

[0094] The aerosol-forming material includes an organic acid. The total amount of the acid is about 0.1% to about 5% by weight of the aerosol-forming material. For example, the total amount of the acid is about 0.1% to about 5% by weight, about 0.5% to about 5% by weight, about 1% to about 5% by weight, about 1.5% to about 5% by weight, about 2% to about 5% by weight, or about 2.5% to about 5% by weight of the aerosol-forming material. For example, the total amount of the acid is about 2.5% to about 5% by weight, about 2.5% to about 4.5% by weight, about 2.5% to about 4% by weight, about 2.5% to about 3.5% by weight, or about 2.5% to about 3% by weight of the aerosol-forming material.

[0095] In some embodiments, the aerosol-forming material comprises about 50%, about 60%, about 70%, about 80%, about 90%, about 100%, about 110%, about 120%, about 130%, about 140%, about 150%, about 160%, about 170%, about 180%, or about 190% to about 200% of the amount of acid (i.e., moles of acid) relative to the moles of non-nicotine active substance.

[0096] In some embodiments, the aerosol-forming material comprises an extract derived from non-tobacco plant material.

[0097] In some embodiments, when the aerosol-generating material includes a plant material, the aerosol-generating material further includes an extract derived from the plant material. For example, as shown in FIG. 1 , the aerosol-generating material may be prepared by extracting the plant material and separating the extract and a fiber portion. The fiber portion may be combined with a second fiber material and processed to form a refined pulp, which may then be formed into a sheet. The extract, along with the non-nicotine active, organic acid, and aerosol-forming agent, may be applied to the sheet, e.g., impregnated into the sheet, which is then dried. Reintroducing the extract from the plant material into the resulting aerosol-generating material allows aroma compounds from the plant material to be present in the aerosol-generating material. Processing the plant material to form an aerosol-generating material, for example, by a typical papermaking process, is believed to result in the loss of volatile flavor / aroma compounds. In particular, heating the plant material during the papermaking process may result in the loss of highly volatile compounds, which are likely compounds that provide flavor and / or aroma to the plant material.

[0098] It is understood that the method for producing an aerosol-generating material can be modified depending on the active substance included. For example, certain non-nicotine active substances, such as cannabinoids like CBD and THC, are lipophilic and may not be easily incorporated into an aerosol-generating material according to the papermaking process described above. Such active substances can be incorporated into a method that includes extracting plant material and separating it into an extract and a fiber portion, processing the fiber portion to form a refined pulp, forming the refined pulp into a sheet, adding the extract and an aerosol-forming agent to the sheet to form an impregnated sheet, drying the sheet, and adding the non-nicotine active substance, for example, by mixing the active substance with the sheet, spraying the active substance onto the sheet, or any other method of distributing the active substance onto / into the sheet.

[0099] Additionally, it is understood that certain actives may be particularly sensitive to elevated temperatures. Thus, the drying step of the method shown in Figure 1 can be adjusted to ensure that any non-nicotine actives remain within the sheet and are not lost. In some embodiments, the heating step may be carried out at a temperature of less than about 120°C, e.g., less than about 110°C, e.g., less than about 100°C, e.g., less than about 90°C, e.g., less than about 80°C, e.g., less than about 70°C, e.g., less than about 60°C, e.g., less than about 50°C, e.g., less than about 40°C.

[0100] In some embodiments, the aerosol-generating material contains essentially 100% non-tobacco plant material. For example, the fiber material includes essentially all of the fiber portion of the original plant material, and the extract includes essentially the entire extract removed from the original plant material. Utilizing all of the fiber portion and extract of the plant material is preferred because it reduces waste material. Furthermore, the complete flavor profile of the original plant material is maintained in the resulting aerosol-generating material. This may be particularly preferred by consumers who may desire to consume an aerosol with a flavor from the plant material.

[0101] In some embodiments, the aerosol-generating material comprises the extract in an amount of about 5% to about 15% by weight of the aerosol-generating material. For example, the extract may be present in an amount of about 6% to about 14% by weight of the aerosol-generating material, such as about 7% to about 13% by weight of the aerosol-generating material, such as about 8% to about 12% by weight of the aerosol-generating material, or about 10% to about 12% by weight of the aerosol-generating material. In some embodiments, the aerosol-generating material comprises the extract in an amount of about 11% by weight of the aerosol-generating material.

[0102] The aerosol-forming material includes an aerosol-forming agent / aerosol-forming agent material. The total amount of aerosol-forming agent may be about 10% to about 20% by weight of the aerosol-forming material. In some embodiments, the total amount of aerosol-forming agent is about 13% to about 16% by weight of the aerosol-forming material. In some embodiments, the total amount of aerosol-forming agent material is about 15% by weight of the aerosol-forming material. If the aerosol-forming material includes more than about 20% by weight of the aerosol-forming agent, the aerosol may become "sticky" during storage, which may lead to processability issues.

[0103] In this context, an "aerosol-forming agent" is an agent or material that facilitates the generation of an aerosol. Aerosol-forming agents may facilitate the generation of an aerosol by facilitating the initial vaporization and / or condensation of a gas into an inhalable solid and / or liquid aerosol. In some embodiments, aerosol-forming agents may improve the delivery of flavor from the aerosol-forming material.

[0104] The aerosol former materials have been found to improve the sensory performance of articles for use with aerosol-generating devices that include the aerosol-generating materials by aiding in the transport of compounds, such as flavor compounds, from the fiber material to the consumer. In some embodiments, the aerosol former materials described herein are flavored and / or include a flavor described herein.

[0105] Generally, any suitable aerosol-forming agent may be included in the aerosol-generating materials of the present invention. Suitable aerosol-forming agents include, but are not limited to, polyols such as sorbitol, glycerol, and glycols such as propylene glycol or triethylene glycol, non-polyols such as monohydric alcohols, high-boiling hydrocarbons, acids such as lactic acid, glycerol derivatives, esters such as diacetin, triacetin, triethylene glycol diacetate, triethyl citrate, or myristates, including ethyl myristate and isopropyl myristate, and aliphatic carboxylic acid esters such as methyl stearate, dimethyl dodecanedioate, and dimethyl tetradecanedioate.

[0106] 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, mesoerythritol, ethyl vanillate, ethyl laurate, diethyl suberate, triethyl citrate, triacetin, diacetin mixtures, benzyl benzoate, benzyl phenylacetate, tributyrin, lauryl acetate, lauric acid, myristic acid, propylene carbonate, and mixtures thereof.

[0107] In some embodiments, the aerosol forming agent comprises glycerol in an amount of about 10% to about 90% by weight of the aerosol forming agent.

[0108] In some embodiments, the ratio of aerosol-forming agent to fiber material is about 1:7 to about 1:3, such as about 1:6 to about 1:4, e.g., about 1:5. When the ratio of aerosol-forming agent to fiber material is within this range, the aerosol-forming material exhibits favorable storage characteristics and produces favorable aerosols.

[0109] The aerosol-forming materials described herein may also include a filler component. The filler component is generally a non-tobacco component, i.e., a component that does not contain tobacco-derived raw materials. The filler component may be a non-tobacco fiber, such as wood fiber or pulp or wheat fiber. The filler component may also be an inorganic material, such as chalk, perlite, vermiculite, diatomaceous earth, colloidal silica, magnesium oxide, magnesium sulfate, magnesium carbonate, etc. The filler component may also be a non-tobacco cast material or a non-tobacco extruded material.

[0110] The filler component may be present in an amount of about 0 to about 20% by weight of the tobacco material, or about 1 to about 10% by weight of the aerosol-forming material. In preferred embodiments, the aerosol-forming material includes a filler component in an amount of about 5% to about 10% by weight of the aerosol-forming material. In some embodiments, no filler component is present.

[0111] 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, for example, 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.

[0112] In some embodiments, the aerosol-forming material has a water content of about 3% to about 8%. For example, the aerosol-forming material has a water content of about 4% to about 7%, e.g., about 5% to about 6%. In some embodiments, the aerosol-forming material has a water content of about 5%.

[0113] In some embodiments, the aerosol-forming material is applied to a volume of about 2 cm 3 / g ~ approx. 10cm 3 In some embodiments, the aerosol-forming material has a loading value of about 3 cm 3 / g ~ approx. 8cm 3 / g, for example, the aerosol-forming material may have a loading value of about 4 cm 3 / g ~ approx. 7cm 3 / g, for example, about 4 cm 3 / g ~ approx. 6cm 3 In some embodiments, the aerosol-forming material may have a loading value of about 5 cm / g. 3 / g. The filling value is about 2 cm 3 / g ~ approx. 10cm 3 / g, for example, about 5 cm 3 / g, consumables containing the aerosol-generating material may be lighter. Thus, the total weight of material used to achieve the same / required fill value is smaller, resulting in cost savings on the product. In addition, using the aerosol-generating materials described herein may also be advantageous because resistance to inhalation is not affected, thus providing a more favorable user experience for consumers.

[0114] In some embodiments, the aerosol-forming material exhibits a burst strength of about 5 KPa to about 40 KPa. In some embodiments, the aerosol-forming material exhibits a burst strength of about 10 KPa to about 30 KPa. In some embodiments, the aerosol-forming material exhibits a burst strength of about 15 KPa to about 25 KPa, e.g., about 20 KPa to about 25 KPa. In some embodiments, the burst strength is about 20 KPa.

[0115] In one embodiment, the aerosol-generating material is in the form of a rod. The aerosol-generating rod may have a total weight of about 250 mg to about 350 mg. In one embodiment, the aerosol-generating rod may be enclosed in a packaging material having an air permeability of less than 100 Coresta units. The aerosol-generating rod may have a circumference of at least about 19 mm, preferably about 19 mm to about 23 mm or about 21 mm. This may facilitate insertion of the article into the aerosol-generating device.

[0116] As used herein, the term "rod" is used to describe a generally cylindrical element of generally circular, oval, or elliptical cross section.

[0117] For the compositions described herein, when amounts are given in weight percent, this refers to a dry weight basis unless specifically indicated to the contrary. Therefore, any water that may be present in the aerosol-forming material or any of its components is completely ignored for purposes of determining weight percent. The water content of the aerosol-forming materials described herein may vary, for example, from 5% to 15% by weight. The water content of the aerosol-forming materials described herein may vary, for example, depending on the temperature, pressure, and humidity conditions under which the composition is maintained. The water content may be determined by Karl Fischer analysis, as known to those skilled in the art. However, for the avoidance of doubt, any components other than water are included in the weight of the aerosol-forming material, even if the aerosol-forming material is a component in a liquid phase, such as glycerol or propylene glycol.

[0118] In some embodiments, a system comprises an article described herein, wherein the aerosol-generating device is configured to receive at least a portion of the article including an aerosol-generating material, heat the portion of the article including the aerosol-generating material, and generate an aerosol from the aerosol-generating material.

[0119] In some embodiments, the aerosol-generating material may be disposed in an aerosol-generation section of the article. In use, the aerosol-generation section may exhibit a pressure drop of about 15 to about 40 mmH2O. In some embodiments, the aerosol-generation section exhibits a pressure drop across the aerosol-generation section of about 15 to about 30 mmH2O.

[0120] In some embodiments, the article comprises a tipping tip and a cylindrical rod of aerosol-forming material connected directly or indirectly to the tipping tip. A tipping tip wrapper, also referred to herein as tipping paper, is wrapped over a portion of the rod of aerosol-forming material along the entire length of the tipping tip and has adhesive on an inner surface of the tipping paper to connect the tipping tip and the rod.

[0121] In some embodiments, the tipping paper extends 5 mm over the rod of aerosol-generating material, but may alternatively extend 3 mm to 10 mm, or more preferably 4 mm to 6 mm, over the rod to provide a secure attachment between the tipping tip and the rod. The tipping paper may have a basis weight higher than that of the plug wrap used in the article for use with the aerosol-generating device, for example, 40 gsm to 80 gsm, more preferably 50 gsm to 70 gsm, in this example 58 gsm. It has been found that these basis weight ranges result in tipping paper with acceptable tensile strength while being flexible enough to wrap around the article and adhere to itself along the paper's longitudinal lap seam. The circumference of the tipping paper may be approximately 21 mm when wrapped around the tipping tip.

[0122] According to some embodiments, there is provided an article for use in an aerosol delivery system, the article comprising: an aerosol-forming material or substrate; a mouthpiece downstream of the aerosol-forming material; and a wrapping material, the wrapping material comprising a warming agent material, wherein a portion of the mouthpiece wrapping material proximate the downstream end of the mouthpiece contacts a consumer's lips during use.

[0123] The tipping wrap may be positioned to enclose the tipping in a region between the upstream and downstream ends of the tipping. The tipping wrap may be positioned such that when the article is inserted into the heating device, a portion of the tipping wrap is heated to the same or a similar temperature as the aerosol-forming material.

[0124] In some embodiments, the tipping wrapper comprises a warming agent material. The warming agent material may comprise a flavoring agent, as described herein. In some embodiments, the flavoring agent may be licorice, rose oil, vanilla, lemon oil, orange oil, mint flavor, preferably menthol and / or mint oil from any species of the genus Mentha, such as peppermint oil and / or spearmint oil, or lavender, fennel, or anise. In preferred embodiments, the warming agent material comprises a sugar and / or a sugar substitute (e.g., sucralose, acesulfame potassium, aspartame, saccharin, cyclamate, lactose, sucrose, glucose, fructose, sorbitol, or mannitol). Additionally or alternatively, the warming agent material may comprise a material that delivers a cooling, hot, or sour sensation to the consumer during use of the article.

[0125] In some embodiments, the warming agent material may include one or more of a pH adjuster, a stabilizer, and / or an antioxidant, which may help to extend the shelf life of the tipping wrapper and, therefore, the article.

[0126] The warming material may be encapsulated in an encapsulating material, for example, the warming material may be provided in the form of microcapsules that are applied to the packaging material.

[0127] The tipping wrapper may have an inner surface and an outer surface, and the warmth material may be present on at least a portion of the inner and / or outer surfaces of the wrapper. For example, the warmth material may be disposed on the outer surface of the tipping wrapper in an area that contacts the consumer's lips during use. By disposing the warmth material on the outer surface of the tipping wrapper, the warmth material may be transferred to the consumer's lips during use. By transferring the warmth material to the consumer's lips during use of the article, the organoleptic properties (e.g., taste) of the aerosol generated by the aerosol-generating substrate may be modified. For example, the warmth material may impart a flavor to the aerosol generated by the aerosol-generating substrate. The warmth material may be at least partially soluble in water so that it can be transferred to the user via the consumer's saliva.

[0128] Suitably, a relatively small amount of the warming material may be required to modify the sensory properties delivered to the consumer during use of the article, although this will depend to some extent on the properties of the warming material, as the minimum amount required to modify the sensory properties will vary between different warming materials. This can have the advantage that the addition of the warming material to the tipping wrap may not significantly increase the overall weight of the article.

[0129] In some embodiments, the present disclosure describes aerosol-forming materials that are obtained or obtainable by the methods described herein, such as the methods claimed.

[0130] Example An aerosol-forming material having the composition shown in Table 1 was prepared.

[0131] [Table 1]

[0132] An aerosol-forming material was prepared by adding rooibos to an extraction solvent and separating it into a fiber portion and an extract. The fiber portion was mixed with wood pulp and refined to produce a refined pulp, which was then formed into a sheet. The sheet was impregnated with glycerol and the extract to form an impregnated sheet. The impregnated sheet was dried to form an aerosol-forming material. CBD was then sprayed onto the surface of the aerosol-forming material. 100 g of the aerosol-forming material was added to 500 mL of purified water and stirred for 30 minutes, and the pH was measured to be 6.0.

[0133] The various embodiments described herein are presented solely to aid in the understanding and teaching of the claimed features. These embodiments are provided only as a representative sample of embodiments and are not exhaustive and / or exclusive. The advantages, embodiments, examples, functions, features, structures, and / or other aspects described herein should not be construed as limitations on the scope of the invention as defined by the claims or limitations on the equivalents of the claims, 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 may suitably comprise, consist of, or consist essentially of any suitable combination of the disclosed elements, components, features, parts, steps, means, etc., other than those specifically described herein. Additionally, the present disclosure may include other inventions not currently claimed but which may be claimed in the future.

Claims

1. An aerosol-forming material comprising a fiber material and a non-nicotine active material.

2. The aerosol-forming material of claim 1 , wherein the fibrous material comprises a non-tobacco plant material.

3. 3. The aerosol-forming material of claim 1 or 2, wherein the non-tobacco plant material is selected from the list consisting of fennel, star anise, mint, and rooibos, and mixtures thereof.

4. 4. The aerosol-forming material according to claim 1, wherein the fibrous material comprises rooibos.

5. The aerosol-forming material according to any one of claims 1 to 4, further comprising an aerosol-forming agent.

6. 6. The aerosol-generating material of claim 5, wherein the aerosol-forming agent is selected from the list consisting of glycerol, propylene glycol, diethylene glycol, triethylene glycol, tetraethylene glycol, 1,3-butylene glycol, erythritol, mesoerythritol, ethyl vanillate, ethyl laurate, diethyl suberate, triethyl citrate, triacetin, diacetin mixtures, benzyl benzoate, benzyl phenylacetate, tributyrin, lauryl acetate, lauric acid, myristic acid, propylene carbonate, and mixtures thereof.

7. 7. The aerosol-forming material of claim 1, comprising a total fibrous material content of from about 70% to about 95% by weight on a dry weight basis.

8. The aerosol-forming material of claim 1 , wherein the fibrous material comprises a first fibrous material and a second fibrous material.

9. 9. The aerosol-forming material of claim 8, wherein the first fiber material and the second fiber material are different.

10. 10. The aerosol-forming material of claim 9, wherein the first fibrous material comprises a non-tobacco plant material and the second fibrous material comprises wood fiber and / or wood pulp.

11. 11. The aerosol-forming material of claim 10, wherein the non-tobacco plant material is selected from the list consisting of fennel, star anise, mint, and rooibos, and mixtures thereof.

12. 12. The aerosol-forming material of claim 10 or 11, wherein the non-tobacco plant material comprises rooibos.

13. 13. The aerosol-forming material of claim 8, wherein the ratio of the first fiber material to the second fiber material is from about 10:1 to about 2:

1.

14. 13. The aerosol-forming material of any one of claims 1 to 12, wherein upon contact with purified water, the aerosol-forming material exhibits a pH of up to about 6.

5.

15. 13. The aerosol-forming material of any one of claims 1 to 12, wherein upon contact with purified water, the aerosol-forming material exhibits a pH of about 5 to about 8.

16. 13. The aerosol-forming material of any one of claims 1 to 12, wherein upon contact with purified water, the aerosol-forming material exhibits a pH of at least about 6.

5.

17. 17. The aerosol-forming material of any one of claims 1 to 16, further comprising an extract derived from a non-tobacco plant material.

18. 18. The aerosol-forming material of claim 17, wherein the non-tobacco plant material is selected from the list consisting of fennel, star anise, mint, and rooibos, and mixtures thereof.

19. 19. The aerosol-forming material of claim 17 or 18, wherein the non-tobacco plant material comprises rooibos.

20. 20. The aerosol-forming material according to any one of claims 17 to 19, comprising the extract in an amount of from about 5% to about 15% by weight of the aerosol-forming material on a dry weight basis.

21. 21. The aerosol-forming material of any one of claims 1 to 20, having a thickness of from about 200 μm to about 450 μm.

22. 7. The aerosol-forming material according to claim 5, wherein the aerosol-forming agent is present in an amount of about 10% to about 20% by weight of the aerosol-forming material on a dry weight basis.

23. 7. The aerosol-forming material according to claim 5, wherein the ratio of the aerosol-forming agent to the fiber material is from about 1:7 to about 1:

3.

24. Approximately 2 cm ３ / g ~ approx. 10cm ３ 24. The aerosol-forming material of any one of claims 1 to 23, having a loading value of 0.1g / g.

25. 25. The aerosol-forming material of any one of claims 1 to 24, exhibiting a burst strength of from about 5 KPa to about 40 KPa.

26. 26. The aerosol-forming material of any one of claims 1 to 25, which is free or substantially free of tobacco material.

27. 27. The aerosol-forming material of any one of claims 1 to 26, wherein the non-nicotine active substance is a cannabinoid selected from the list consisting of cannabigerol (CBG), cannabichromene (CBC), cannabidiol (CBD), tetrahydrocannabinol (THC), cannabinol (CBN), cannabinodiol (CBDL), cannabicyclol (CBL), cannabivarin (CBV), tetrahydrocannabivarin (THCV), cannabidivarin (CBDV), cannabichromevarin (CBCV), cannabigerovarin (CBGV), cannabigerol monomethyl ether (CBGM), cannabinerolic acid, cannabidiolic acid (CBDA), cannabinol propyl variant (CBNV), cannbitriol (CBO), tetrahydrocannabinolic acid (THCA), and tetrahydrocannabivarinic acid (THCV A), and mixtures thereof.

28. 28. The aerosol-forming material of claim 27, wherein the cannabinoid is selected from CBD, CBDA, THC, and THCA.

29. 27. The aerosol-forming material of any one of claims 1 to 26, wherein the non-nicotine active substance is selected from the list consisting of caffeine, taurine, L-theanine, vitamin B1, vitamin B2, vitamin B5, vitamin B6, vitamin B7, vitamin C, ginseng extract, chamomile extract, lemon balm extract, and mixtures thereof.

30. 30. The aerosol-forming material of claim 29, wherein the non-nicotine active substance is caffeine.

31. The aerosol-forming material of any one of claims 1 to 30, further comprising a pH adjuster.

32. 32. The aerosol-forming material of claim 31 , wherein the pH adjuster is an organic acid.

33. 33. The aerosol-forming material of claim 32, wherein the organic acid is selected from the list consisting of lactic acid, levulinic acid, benzoic acid, citric acid, 2-methylbutyric acid, and 2-methylvaleric acid, and mixtures thereof.

34. 32. The aerosol-forming material of claim 31 , wherein the pH adjuster is a base.

35. An aerosol-generating rod comprising the aerosol-generating material of any one of claims 1 to 34.

36. An article comprising an aerosol-generating material according to any one of claims 1 to 34 or an aerosol-generating rod according to claim 35.

37. 37. The article of claim 36, comprising an aerosol-generating section comprising the aerosol-generating material or the aerosol-generating rod.

38. 38. The article of claim 36 or 37, comprising a wrapper surrounding the aerosol-generating material or the aerosol-generating rod.

39. 39. The article of claim 38, wherein at least about 70% of the volume of the aerosol-generating section comprises the aerosol-generating material or the aerosol-generating rod.

40. In use, the pressure drop across the aerosol-generation section is from about 15 to about 40 mmH ２ 40. The article of any one of claims 36 to 39, configured to be O.

41. The article of any one of claims 37 to 40 for use in a delivery system.

42. 42. The article of claim 41, wherein the delivery system is a non-combustion aerosol delivery system.

43. 43. The article of claim 42, wherein the non-combustion aerosol delivery system comprises an aerosol generator for insertion into the aerosol generation section.

44. 44. The article of claim 43, wherein, during use, the aerosol generator is configured to directly contact at least a portion of the aerosol-generating material when the aerosol generator is received by the aerosol-generating section of the article.

45. A delivery system comprising an aerosol-generating material according to any one of claims 1 to 34, an aerosol-generating rod according to claim 35, or an article according to any one of claims 36 to 44.

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