Aerosol generating materials

Abstract

The present invention provides an aerosol generating material containing plant-derived components, an aerosol-forming material, and an acid. It also provides a method for producing the aerosol generating material and an article for use in an aerosol generating system, the article comprising the aerosol generating material of the present invention. [Solution] The aerosol generating material comprises a plant-derived component, an aerosol-forming material, and an acid, wherein the plant-derived component comprises an amount of plant-derived material equal to about 20% or more by dry weight of the plant-derived component, the nicotine content of the plant-derived material is 1.5% or more by dry weight of the plant-derived material, the total amount of the aerosol-forming material is about 10% to about 30% by weight of the aerosol generating material, and the total amount of the acid is about 0.1% to about 5% by weight of the aerosol generating material.

Description

[Technical Field]

[0001] The present invention relates to an aerosol generating material, a method for producing an aerosol generating material, and an article for use in an aerosol generating system, the article comprising an aerosol generating material. Background

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

[0003] According to embodiments of the present invention, in a first embodiment, an aerosol generating material is provided comprising a plant-derived component, an aerosol-forming material, and an acid, wherein the plant-derived component comprises a plant-derived material in an amount of about 20% by weight or more of the plant-derived component, the nicotine content of the plant-derived material is 1.5% or more by dry weight of the plant-derived material; the total amount of the aerosol-forming material is about 10% to about 30% by weight of the aerosol generating material; and the total amount of the acid is about 0.1% to about 5% by weight of the aerosol generating material.

[0004] According to embodiments of the present invention, in a second embodiment, an aerosol generating material is provided which includes a plant-derived component containing nicotine, an aerosol-forming material, and an acid, wherein the aerosol generating material contains an amount of acid of about 50% to about 200% relative to the number of moles of nicotine in the plant-derived component.

[0005] According to embodiments of the present invention, a third embodiment provides a method for producing an aerosol generating material according to the first or second embodiment, the method comprising the step of adding the aerosol forming material and the acid to the plant-derived components.

[0006] According to embodiments of the present invention, in a fourth embodiment, an aerosol generating material produced by the method of the third embodiment is provided.

[0007] According to embodiments of the present invention, a fifth embodiment provides the use of an aerosol generating material according to the first, second, or fourth embodiment in an article for use in an aerosol supply system.

[0008] According to an embodiment of the present invention, in a sixth embodiment, an article for use in an aerosol supply system is provided, comprising an aerosol generating material according to the first, second, or fourth embodiment.

[0009] According to an embodiment of the present invention, in a seventh embodiment, a system is provided comprising an aerosol generating material according to the first, second, or fourth embodiment, and a device arranged to heat the aerosol generating material and generate an aerosol from the aerosol generating material.

[0010] Hereinafter, embodiments of the present invention will be described only illustratively with reference to the accompanying drawings. [Brief explanation of the drawing]

[0011] [Figure 1] This diagram shows a flowchart illustrating a method for producing aerosol-generating materials. [Figure 2] This is a lateral cross-sectional view of an article, including a mouthpiece, for use with an aerosol supply device. Detailed explanation

[0012] The present invention relates to aerosol generating materials. The present invention also relates to a method for producing aerosol generating materials, the use of aerosol generating materials, articles for use in delivery systems, and systems comprising aerosol generating materials and devices.

[0013] Aerosol-generating materials contain aerosolizable components. During use, the aerosol-generating material produces an aerosol, such as a gas in which droplets or fine particles are suspended. The aerosol contains nicotine 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 produces an aerosol that provides a suitable user experience and satisfaction.

[0014] The composition of an aerosol contributes to user experience and satisfaction. One attribute that contributes to user experience and satisfaction is the nicotine content of the aerosol. Another attribute that contributes to user experience and satisfaction is the perceived harshness of the aerosol. Therefore, it is important to control the nicotine content and harshness of the aerosol.

[0015] In some cases, aerosol-generating materials containing plant-derived components with high nicotine content (e.g., lamina tobacco) have been found to produce aerosols with excessively strong perceived harshness. However, it is desirable to use such high-nicotine-content plant-derived components because they possess other properties that users appreciate, such as a good flavor profile. Therefore, it is important to be able to control the perceived harshness of the aerosol-generating material while maintaining other attributes that contribute to the user experience (e.g., flavor profile and nicotine content).

[0016] Therefore, it is necessary to provide an aerosol generating material that produces an aerosol acceptable to the user, for example, by resulting in an appropriate nicotine content, perceived harshness, and / or flavor profile.

[0017] As used herein, the term "delivery system" is intended to encompass a system for delivering a substance to a user and includes the following: A combustible aerosol supply system such as a cigarette, cigarillo, pipe tobacco, hand-rolled cigarette, or make-your-own tobacco (regardless of whether based on tobacco, tobacco derivatives, expanded tobacco, recycled tobacco, tobacco substitutes, or other smoking materials), including: A non-combustible aerosol supply system that releases a compound from an aerosol-generating material without burning the aerosol-generating material, such as an electronic cigarette, a tobacco heating product, or a hybrid system that generates an aerosol using a combination of aerosol-generating materials; and An aerosol-free delivery system that delivers a material to a user without forming an aerosol, such as a lozenge, gum, patch, an article containing an inhalable powder, or a smokeless tobacco product such as snus or snuff.

[0018] According to the present disclosure, a "non-combustible" aerosol supply system is a system that does not burn or combust an aerosol-generating material (or its components), which are components of the aerosol supply system, in order to facilitate the delivery of a substance to a user.

[0019] In some embodiments, the delivery system is a non-combustible aerosol supply system such as a powered non-combustible aerosol supply system.

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

[0021] In some embodiments, the non-combustible aerosol supply system is a tobacco heating system, also known as a non-combustion heating system.

[0022] In some embodiments, the non-flammable aerosol supply system is a hybrid system that generates aerosols using a combination of aerosol-generating materials (one or more of the materials may be heated). Each aerosol-generating material may be, for example, in the form of a solid, liquid, or gel. 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 may include, for example, tobacco materials or non-tobacco products.

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

[0024] In some embodiments, the disclosure relates to consumables comprising aerosol-generating materials and configured for use with non-flammable aerosol supply devices. These consumables may also be referred to as articles throughout the disclosure.

[0025] In some embodiments, it is envisioned that a consumable that includes means for supplying power to an aerosol generator itself may form a non-flammable aerosol supply system.

[0026] In some embodiments, the non-flammable aerosol supply system may include a power source and a control device. The power source may be a power source or a heat source. In some embodiments, the heat source comprises a carbon substrate capable of generating energy to supply power in the form of heat to an aerosol generating material or heat transfer material located near the heat source. In some embodiments, the power source, such as a heat source, is provided in an article to form a non-flammable aerosol supply system.

[0027] Consumables are articles containing or consisting of aerosol-generating material, some or all of which are intended to be consumed during use by the user. In some embodiments, consumables for use with a non-flammable aerosol supply device may comprise 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 wrapper, a filter, a mouthpiece, and / or an aerosol modifier. Consumables may also comprise an aerosol generator, such as a heater, which generates heat to produce an aerosol from the aerosol-generating material when in use. The heater may comprise, for example, a flammable material, an electrically conductive material, or a susceptor.

[0028] An aerosol generator is a heater capable of interacting with an aerosol-generating material to form an aerosol by releasing one or more volatile substances from the aerosol-generating material. In some embodiments, an aerosol generator can generate an aerosol from an aerosol-generating material without heating. For example, an aerosol generator can generate an aerosol from an aerosol-generating material without applying heat, for example, via one or more of vibration, mechanical, pressurizing, or electrostatic means.

[0029] In some embodiments, the aerosol generating material may contain one or more active substances. The active substances used herein may be physiologically active substances, which are substances intended to produce or enhance physiological responses. The active substances may be selected from, for example, nutritional supplements, nootropics, and psychotropic drugs. The active substances may be naturally occurring or synthetically obtained. Examples of active substances include nicotine, caffeine, taurine, theine, vitamin B6, or B1. 12 Alternatively, it may contain vitamin C, melatonin, cannabinoids, or their components, derivatives, or combinations. The active substance may contain one or more components, derivatives, or extracts of tobacco, cannabis, or another plant substance.

[0030] In some embodiments, the plant-derived material may be leaf material, such as tobacco material. In some embodiments, the plant-derived material may be plant-based material. In some embodiments, the active substance contains nicotine. The plant-derived material may contain nicotine, or nicotine may be added to the plant-derived material.

[0031] When an aerosol generating material contains nicotine, it is important to produce an aerosol with an appropriate nicotine content and perceived harshness. This application relates to such an aerosol generating material. The inventors have found that an aerosol generating material containing an appropriate amount of acid (e.g., lactic acid) provides a better user experience. That is, the acid-containing aerosol generating material described herein produces an aerosol with an appropriate nicotine content and perceived harshness.

[0032] The appropriate amount of acid used in an aerosol-generating material can be determined in several ways. For example, when tobacco with a high nicotine content (such as laminated tobacco) is used, the amount of acid used can be determined in relation to the aerosol-generating material, for example, as a weight percentage of the aerosol-generating material. Alternatively, the amount of acid can be determined in relation to the nicotine content of the aerosol-generating material, for example, by referring to the ratio of moles of nicotine to moles of acid.

[0033] While we do not wish 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 produced by the aerosol generating material will contain a particularly beneficial ratio of nicotine in the gas phase to nicotine in the particulate / liquid phase (nicotine (gas):nicotine (particulate / liquid)). That is, the nicotine (gas):nicotine (particulate / liquid) ratio in the aerosol produced by the aerosol generating material of the present invention results in an improved user experience and satisfaction. This is thought to be because using the amount of acid specified herein allows for optimal protonation of nicotine (for example, by changing the ratio of free base nicotine to protonated nicotine). It is understood that protonation of nicotine in the aerosol generating material changes the nicotine (gas):nicotine (particulate / liquid) ratio by increasing the amount of nicotine present in the particulate / liquid phase. The aerosol produced by the aerosol generating material described herein delivers an appropriate amount of nicotine to the user. Furthermore, users have reported that such aerosol-generating materials are neither too harsh nor too lacking in harshness. Thus, the acid-containing aerosol-generating materials described herein produce aerosols with appropriate nicotine content and perceived harshness.

[0034] In some embodiments, the present invention relates to an aerosol generating material comprising a plant-derived component, an aerosol-forming material, and an acid, wherein the plant-derived component comprises a plant-derived material in an amount of about 20% by weight or more of the plant-derived component, the nicotine content of the plant-derived material is 1.5% or more by dry weight of the plant-derived material; the total amount of the aerosol-forming material is about 10% to about 30% by weight of the aerosol generating material; and the total amount of the acid is about 0.1% to about 5% by weight of the aerosol generating material.

[0035] In some embodiments, the acid is selected from the group consisting of lactic acid, levulinic acid, benzoic acid, citric acid, 2-methylbutyric acid, or 2-methylvaleric acid. In some embodiments, the acid is lactic acid. In some embodiments, the acid is levulinic acid.

[0036] The term lactic acid is synonymous with the term 2-hydroxypropanoic acid and includes both D- and L-type enantiomers, either individually or in mixtures thereof. For example, lactic acid may 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.

[0037] When an aerosol-generating material contains the total amount of acid specified herein, the aerosol generated by heating the aerosol-generating material has been found to contain an appropriate level of nicotine, but to provide a better sensory experience than when no acid is present or when a different total amount of acid is used. While we do not wish to be bound by any particular theory, it is understood that the total amount of acid specified herein provides a particularly favorable sensory experience in aerosol-generating materials containing plant-derived materials with a high nicotine content (e.g., lamina tobacco material).

[0038] In particular, it should be understood that the total amount of acid specified herein represents the minimum amount of acid necessary to deliver an appropriate nicotine level and sensory experience. Using less acid than the amount specified herein will result in an suboptimal amount of nicotine delivered to the user.

[0039] It is further understood that the total amount of acid specified herein represents the maximum amount of acid necessary to achieve the appropriate nicotine level and sensory experience. Using more acid than the amount specified herein will not improve performance and is therefore considered wasteful.

[0040] If the aerosol-generating material includes plant-derived materials other than tobacco, it is further understood that the total amount of acid specified herein reduces the harshness of the aerosols produced by the aerosol-generating material.

[0041] The aerosol generating material contains acid. The total amount of acid is approximately 0.1% to 5% by weight of the aerosol generating material. For example, the total amount of acid is approximately 0.1% to 5% by weight, approximately 0.5% to 5% by weight, approximately 1% to 5% by weight, approximately 1.5% to 5% by weight, approximately 2% to 5% by weight, or approximately 2.5% to 5% by weight of the aerosol generating material. For example, the total amount of acid is approximately 2.5% to 5% by weight, approximately 2.5% to 4.5% by weight, approximately 2.5% to 4% by weight, approximately 2.5% to 3.5% by weight, or approximately 2.5% to 3% by weight of the aerosol generating material.

[0042] In some embodiments, the acid is contained in a plant-derived component. In some embodiments, the plant-derived component contains an amount of acid equivalent to about 50% to about 99% of the total amount of acid in the aerosol-generating material. In some embodiments, the plant-derived component contains an amount of acid equivalent to about 60% to about 99%, about 70% to about 99%, about 80% to about 99%, or about 85% to about 99% of the total amount of acid in the aerosol-generating material.

[0043] In some embodiments, the aerosol generating material may contain about 0.04 mmol to about 0.07 mmol of acid, optionally about 0.05 mmol or about 0.06 mmol of acid.

[0044] In some embodiments, the ratio of acid to aerosol-forming material in the aerosol-generating material is approximately 1:2 to approximately 1:50 (acid:aerosol-forming material).

[0045] The present invention also relates to an aerosol generating material comprising a plant-derived component containing nicotine, an aerosol-forming material, and an acid, wherein the aerosol generating material contains an amount of acid of about 50% to about 200% relative to the number of moles of nicotine in the plant-derived component.

[0046] In some embodiments, the plant-derived component includes a plant-derived material selected from the group consisting of plant materials or tobacco materials.

[0047] For example, the number of moles of acid in an aerosol generating material is approximately 50% to 200% of the number of moles of nicotine in the plant-derived component. Therefore, for every mole of nicotine in the plant-derived component of the aerosol generating material, the aerosol generating material contains approximately 0.5 to 2 moles of acid. Similarly, if the plant-derived component in the aerosol generating material contains approximately 0.1 moles of nicotine per gram of the plant-derived component, the aerosol generating material contains approximately 0.05 to 0.2 moles of nicotine per gram of the plant-derived component.

[0048] In some embodiments, the aerosol generating material contains an amount of acid (i.e., moles of acid) of 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 moles of nicotine in the plant-derived component.

[0049] In some embodiments, the composition contains an amount of acid (i.e., moles of acid) of about 50% to about 200%, about 190%, about 180%, about 170%, about 160%, 150%, about 140%, about 130%, about 120%, about 110%, about 100%, about 90%, about 80%, about 70%, or about 60% of the moles of nicotine in the plant-derived component.

[0050] In some embodiments, the composition contains an amount of acid (i.e., moles of acid) of about 50% to about 200%, about 75% to about 150%, about 85% to about 140%, about 95% to about 135%, about 105% to about 130%, or about 110% to about 125% relative to the number of moles of nicotine in the plant-derived component. In some embodiments, the composition contains an amount of acid (i.e., moles of acid) of about 100% to about 200%, about 100% to about 180%, about 110% to about 180%, about 120% to about 180%, about 130% to about 180%, or about 135% to about 180% relative to the number of moles of nicotine in the plant-derived component.

[0051] The aerosol generating material contains plant-derived components. In some embodiments, the aerosol generating material contains plant-derived components in an amount of about 60% to about 99% by weight of the aerosol generating material.

[0052] In some embodiments, the plant-derived component includes plant-derived material in an amount of about 20% by weight or more of the plant-derived component. In some embodiments, the plant-derived component includes plant-derived material in an amount of about 20% by weight, about 25% by weight, about 30% by weight, about 35% by weight, about 40% by weight, about 45% by weight, about 50% by weight, about 55% by weight, about 60% by weight, about 65% by weight, about 70% by weight, about 75% by weight, about 80% by weight, about 85% by weight, about 90% by weight, about 95% by weight, or about 100% by weight or more of the plant-derived component. In some embodiments, the plant-derived component includes plant-derived material in an amount of about 20% by weight, about 60% by weight, about 80% by weight, or about 100% by weight of the plant-derived component.

[0053] In some embodiments, the plant-derived component includes plant-derived material in an amount of about 20% to about 100% by weight of the plant-derived component. In some embodiments, the plant-derived component includes plant-derived material in an amount of about 20% to about 99% by weight of the plant-derived component. In some embodiments, the plant-derived component includes plant-derived material in an amount of about 20% to about 60% by weight of the plant-derived component. In some embodiments, the plant-derived component includes plant-derived material in an amount of about 40% to about 80% by weight of the plant-derived component.

[0054] Laminated tobacco has a high nicotine content (as described herein) and a desirable flavor profile. Therefore, it is advantageous to include such laminated tobacco in the aerosol generating material described herein. In some embodiments, the tobacco material is laminated tobacco material.

[0055] As used herein, the term “plant matter” includes, but is not limited to, any material obtained from plants, including, extracts, leaves, bark, fibers, stems, roots, seeds, flowers, fruits, pollen, exoskeletons, and shells. Alternatively, the material may include synthetically obtained active compounds naturally present in plants. The material may be in the form of liquids, gases, solids, powders, dust, crushed particles, granules, pellets, flakes, strips, sheets, and the like. Examples of plant matter include tobacco, eucalyptus, star anise, hemp, cocoa, cannabis, fennel, lemongrass, peppermint, spearmint, rooibos, chamomile, flax, ginger, and ginkgo biloba. Biloba, hazelnut, hibiscus, laurel, licorice, matcha, mate, orange skin, papaya, rose, sage, green tea and black tea, thyme, clove, cinnamon, coffee, aniseed, basil, bay leaf, cardamom, coriander, cumin, nutmeg, oregano, paprika, rosemary, saffron, lavender, lemon peel, mint, juniper, elderflower, vanilla, wintergreen, Beef steak plant, turmeric, sandalwood, coriander, bergamot, orange blossom, myrtle, blackcurrant, valerian, bell pepper, mace, damian, marjoram, olive, lemon balm, lemon basil, chives, caraway, verbena, tarragon, geranium, mulberry, carrot, theanine, theacrine, maca, ashwagandha, damiana, guarana, chlorophyll, baobab, or any combination thereof.Mint may be selected from the following varieties: Mentha Arventis, Mentha cv, Mentha niliaca, Mentha piperita, Mentha piperita citrata cv, Mentha piperita cv, Mentha spicata crispa, Mentha cardifolia, Mentha longifolia, Mentha suaveolens variegata, Mentha pulegium, Mentha spicata cv, and Mentha suaveolens.

[0056] The plant-derived components and / or plant-derived materials described herein contain nicotine. For example, a plant-derived component may contain nicotine between about 0.01 mmol and about 0.04 mmol, optionally about 0.03 mmol. In some embodiments, the plant-derived components and / or plant-derived materials contain nicotine in their natural form (i.e., without nicotine added to the plant-derived components and / or plant-derived materials). In some embodiments, the plant-derived components and / or plant-derived materials contain nicotine added to the plant-derived components and / or plant-derived materials. In some embodiments, if the plant-derived material is a plant-based material or contains a plant-based material, nicotine is added to the plant-derived material. In some embodiments, nicotine is added to the plant-derived material (by spraying nicotine onto the plant-derived material or by immersing the plant-derived material in nicotine).

[0057] In some embodiments, the nicotine content of the plant-derived component is about 0.5% to about 3% by dry weight. For example, the nicotine content of the plant-derived component is about 0.5% to about 2.75% by dry weight, about 0.8% to about 2.5% by dry weight, about 1% to about 2.5% by dry weight, or about 1.5% to about 2.5% by dry weight. For example, the nicotine content of the plant-derived component is about 0.5% to about 1.75% by dry weight, about 0.8% to about 1.2% by dry weight, or about 0.8% to about 1.75% by dry weight. In embodiments, the nicotine content may be about 0.8% to about 1% by dry weight of the plant-derived component.

[0058] In some embodiments, the nicotine content of the plant-derived material is 1.5% or more by dry weight of the plant-derived material. In some embodiments, the nicotine content of the plant-derived material is about 1.5% to about 5% by dry weight of the plant-derived material. The nicotine content of the plant-derived material may be about 1.5%, 1.6%, 1.7%, 1.8%, 1.9%, 2%, 2.1%, 2.2%, 2.3%, 2.4%, 2.5%, 2.6%, 2.7%, 2.8%, 2.9%, 3%, 3.1%, 3.2%, 3.3%, 3.4%, 3.5%, 3.6%, 3.7%, 3.8%, 3.9%, 4%, 4.1%, 4.2%, 4.3%, 4.4%, 4.5%, 4.6%, 4.7%, 4.8%, 4.9%, or 5% by dry weight of the plant-derived material. In some embodiments, the nicotine content of the plant-derived material is between approximately 1.5% and approximately 4% or less by dry weight of the plant-derived material.

[0059] Plant-derived ingredients may include tobacco components. The term "tobacco components" may include one or more of tobacco, tobacco derivatives, puffed tobacco, re-tobacco, or tobacco substitutes. Tobacco components may include one or more of ground tobacco, tobacco fibers, shredded tobacco, extruded tobacco, tobacco leaves / laminae, tobacco stems, re-tobacco, and / or tobacco extracts.

[0060] The tobacco materials that can be used in the aerosol-generating materials described herein may be any suitable tobacco, including Virginia (fully cured and / or air-dried) and / or Burley and / or Oriental, single grade or blend, shredded rag or whole leaf. The aerosol-generating materials may also include mixtures of any of these tobacco materials.

[0061] The remainder of the tobacco component may include recycled tobacco, extruded tobacco, band-cast recycled tobacco, or a combination of band-cast recycled tobacco and tobacco in another form (such as tobacco granules). In some embodiments, the tobacco component includes tobacco material selected from the group consisting of extruded tobacco, band-cast tobacco, and mixtures thereof. Preferably, the tobacco component includes recycled tobacco material. In some embodiments, the plant-derived component includes recycled tobacco material in an amount of about 50% to about 80% by weight of the plant-derived component.

[0062] Recycled tobacco refers to tobacco material formed by extracting tobacco raw materials with a solvent to obtain a residue containing soluble extracts and fibrous material, and then depositing the extract (usually concentrated and optionally further processed) onto the fibrous material (usually purified and optionally with some non-tobacco fibers added), thereby recombining the extract with the fibrous material of the residue. The recombination process is similar to the paper manufacturing process.

[0063] The recycled cigarette may be any type of recycled cigarette known in the art. In certain embodiments, the recycled cigarette is made from raw materials comprising one or more of tobacco strips, tobacco stalks, and whole-leaf tobacco. In further embodiments, the recycled cigarette is made from raw materials comprising tobacco strips and / or whole-leaf tobacco and tobacco stalks. However, in other embodiments, scraps, fine powder, and husks (winnowing) may be used as alternative or additional raw materials.

[0064] The recycled tobacco used in the tobacco components described herein can be prepared by methods for preparing recycled tobacco that are known to those skilled in the art.

[0065] The tobacco components may include a mixture of laminated tobacco material and recycled paper tobacco material. The recycled paper tobacco material may have a nicotine content lower than that of laminated tobacco of the same weight. For example, the nicotine content of the recycled tobacco material may be less than 1.5% by dry weight of the recycled tobacco material.

[0066] The recycled tobacco material may have a density of less than about 700 milligrams / cubic centimeter (mg / cc). Preferably, the tobacco component includes recycled tobacco material having a density of less than about 700 mg / cc, such as recycled paper tobacco material. More preferably, the aerosol generating material includes recycled tobacco material having a density of less than about 600 mg / cc. Alternatively or in addition, the aerosol generating material preferably includes recycled tobacco material having a density of at least 350 mg / cc.

[0067] The weight ratios of laminated tobacco material to recycled paper tobacco material are 30:70, 31:69, 32:68, 33:67, 34:66, 35:65, 36:64, 37:63, 38:62, 39:61, 40:60, 41:59, 42:58, 43:57, 44:56, 45:55, 46:54, 47:53, 48:52, 49:51, 50:50, 51:49, 52:48, 53:47, 54:46, 55:45, 56:44, 57:43, 58:42, 59:41, and 60:40. The ratios may also be 61:39, 62:38, 63:37, 64:36, 65:35, 66:34, 67:33, 68:32, 69:31, 70:30, 71:29, 72:28, 73:27, 74:26, 75:25, 76:24, 77:23, 78:22, 79:21, 80:20, 81:19, 82:18, 83:17, 84:16, 85:15, 86:14, 87:13, 88:12, 89:11, or 90:10 (weight of laminated tobacco:weight of recycled paper tobacco).

[0068] The tobacco material may be supplied in the form of shredded rag tobacco. The shredded rag tobacco can have a cut width of at least 15 cuts / inch (approximately 5.9 cuts / cm, corresponding to a cut width of approximately 1.7 mm). Preferably, the shredded rag tobacco has a cut width of at least 18 cuts / inch (approximately 7.1 cuts / cm, corresponding to a cut width of approximately 1.4 mm), more preferably at least 20 cuts / inch (approximately 7.9 cuts / cm, corresponding to a cut width of approximately 1.27 mm). In one embodiment, the shredded rag tobacco has a cut width of 22 cuts / inch (approximately 8.7 cuts / cm, corresponding to a cut width of approximately 1.15 mm). Preferably, the shredded rag tobacco has a cut width of 40 cuts / inch (approximately 15.7 cuts / cm, corresponding to a cut width of approximately 0.64 mm) or less. Cut widths between 0.5 mm and 2.0 mm, for example between 0.6 mm and 1.5 mm, or between 0.6 mm and 1.7 mm, have been found to result in a tobacco material that is particularly favorable in terms of the surface area-to-volume ratio of the substrate when heated, overall density, and pressure drop. Shredded rag tobacco can be formed from a mixture of different forms of tobacco material, such as loose leaf tobacco and one or more of recycled tobacco, extruded tobacco, and band-cast tobacco. Preferably, the tobacco material includes recycled tobacco.

[0069] The tobacco leaf and / or recycled tobacco material may have widths between approximately 0.5 mm and 2 mm, between approximately 0.6 mm and 1.75 mm, between approximately 0.6 mm and 1.7 mm, or between approximately 0.7 mm and 1.5 mm.

[0070] The aerosol generating materials described herein may include filler components. Filler components are generally non-tobacco components, i.e., components that do not contain tobacco-derived components. Filler components may also be non-tobacco fibers such as wood fibers or pulp, or wheat fibers. Filler components may also be inorganic materials such as chalk, perlite, vermiculite, diatomaceous earth, colloidal silica, magnesium oxide, magnesium sulfate, or magnesium carbonate. Filler components may also be non-tobacco casting materials or non-tobacco extrusion materials.

[0071] 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 generating material. In a preferred embodiment, the aerosol generating material contains an amount of the filler component between about 5% and about 10% by weight of the aerosol generating material. In some embodiments, the filler component is absent.

[0072] The aerosol generating material includes an aerosol forming material. The total amount of the aerosol forming material is about 10% to about 30% by weight of the aerosol generating material. In some embodiments, the total amount of the aerosol forming material is about 10% to about 20% by weight of the aerosol generating material. In some embodiments, the total amount of the aerosol forming material is about 20% to about 30% by weight of the aerosol generating material. In some embodiments, the total amount of the aerosol forming material is about 13% to about 16% by weight of the aerosol generating material. In some embodiments, the total amount of the aerosol forming material is about 15% by weight of the aerosol generating material.

[0073] In some embodiments, the total amount of aerosol-forming material is about 10% to about 30% by weight of the plant-derived components. In some embodiments, the total amount of aerosol-forming material is about 10% to about 20% by weight of the plant-derived components. In some embodiments, the total amount of aerosol-forming material is about 20% to about 30% by weight of the plant-derived components. In some embodiments, the total amount of aerosol-forming material is about 13% to about 16% by weight of the plant-derived components. In some embodiments, the total amount of aerosol-forming material is about 15% by weight of the plant-derived components.

[0074] In this context, “aerosol-forming material” refers to an agent that promotes aerosol generation. Aerosol-forming materials can promote aerosol generation by facilitating initial vaporization and / or condensation of gas into inhalable solid and / or liquid aerosols. In some embodiments, aerosol-forming materials can improve the delivery of fragrances from aerosol-generating materials.

[0075] Aerosol-forming materials have been found to improve the sensory performance of articles for use with aerosol-generating devices containing aerosol-generating materials by helping to deliver compounds such as fragrance compounds from plant-derived materials to consumers. In some embodiments, the aerosol-forming materials described herein are fragranced and / or contain fragrances as described herein.

[0076] In general, any suitable aerosol-forming material or agent may be included in the aerosol-generating material of the present invention. Suitable aerosol-forming materials include, but are not limited to, sorbitol, glycerol, and polyols such as glycols like 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 myristate containing ethyl myristate and isopropyl myristate; and aliphatic carboxylic acid esters such as methyl stearate, dimethyl dodecanediate, and dimethyl tetradecanediate.

[0077] In some embodiments, the aerosol-forming material 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, tributyline, lauryl acetate, lauric acid, myristic acid, propylene carbonate, and mixtures thereof.

[0078] In some embodiments, the aerosol-forming material contains glycerol in an amount of about 10% to about 90% by weight of the aerosol-forming material.

[0079] The aerosol-forming material may be included in any component of the aerosol-generating material. Alternatively or additionally, the aerosol-forming material may be added individually to the aerosol-generating material. In any case, the total amount of the aerosol-forming material in the aerosol-generating material should be as specified herein. In some embodiments, the aerosol-forming material is added to the aerosol-generating material or a plant-derived component as a liquid component. In some embodiments, the aerosol-forming material is included in a gel-based component. The plant-derived component may be added to a gel-based component.

[0080] In some embodiments, the aerosol-forming material may be glycerol, propylene glycol, or a mixture of glycerol and propylene glycol. Preferably, the aerosol-forming material contains glycerol. Glycerol may be present in an amount of 10 to 20% by weight of the plant-derived component, for example, 13 to 16% by weight of the component, or about 14% or 15% by weight of the component. If present, propylene glycol may be present in an amount of 0.1 to 0.3% by weight of the component.

[0081] Aerosol-forming materials may be included in the components of the aerosol-generating material. For example, if present, aerosol-forming materials may be included in the recycled tobacco and / or filler components.

[0082] Alternatively or additionally, aerosol-forming materials may be added individually to plant-derived materials or plant-derived components. In either case, the total amount of aerosol-forming materials in the plant-derived materials or plant-derived components should be as specified herein.

[0083] The recycled tobacco material may contain an aerosol-forming material. The recycled tobacco material may contain an amount of aerosol-forming material between about 10% by weight and about 20% by weight of the recycled tobacco material. In some embodiments, the recycled tobacco material may contain an amount of aerosol-forming material of about 10% by weight, about 11% by weight, about 12% by weight, about 13% by weight, about 14% by weight, about 15% by weight, about 16% by weight, about 17% by weight, about 18% by weight, about 19% by weight, or about 20% by weight of the recycled tobacco material.

[0084] The aerosol generating materials described herein may contain an aerosol modifier, such as any of the fragrances described herein.

[0085] As used herein, the terms “flavoring” and “flavoring” refer to materials that may be used to produce a desired taste, aroma or other somatosensory effect in products intended for adult consumers, to the extent permitted by local regulations. These materials may include naturally occurring flavorings, plant substances, extracts of plant substances, synthetically obtained materials, or combinations thereof (e.g., tobacco, cannabis, licorice, hydrangea, eugenol, magnolia, chamomile, fenugreek, clove, maple, matcha, menthol, mint, aniseed, cinnamon, turmeric, Indian spices, Asian spices, herbs, wintergreen, cherry, berry, red berry, cranberry, peach, apple, orange, ma 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, naswar, betel nut, shisha, pine, honey essence, rose oil Vanilla, lemon oil, orange oil, orange blossom, cherry blossom, cassia, caraway, cognac, jasmine, ylang-ylang, sage, fennel, wasabi, bell pepper, ginger, coriander, coffee, hemp, mint oil from any species of the Mentha genus, eucalyptus, star anise, cacao, lemongrass, rooibos, flax, ginkgo biloba, hazelnut, hibiscus, laurel, mate, orange skin, rose, tea such as green tea and black tea, thyme, juniper, elderflower, basil, Bay leaf, cumin, oregano, paprika, rosemary, saffron, lemon peel, mint, beefsteak plant, turmeric, coriander, myrtle, blackcurrant, valerian, bell pepper, mace, damian, marjoram, olive, lemon balm, lemon basil, chives, caraway, 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,It may also contain other additives such as aspartame, saccharin, cyclamate, lactose, sucrose, glucose, fructose, sorbitol, mannitol, as well as charcoal, chlorophyll, minerals, plant-based substances, and breath fresheners. These materials may be imitations, synthetic ingredients, natural ingredients, or blends thereof. These materials may be in any preferred form, such as a liquid like oil, a solid like powder, or a gas.

[0086] In some embodiments, the flavoring includes menthol, spearmint, and / or peppermint. In some embodiments, the flavoring includes cucumber, blueberry, citrus fruit, and / or red berry flavor components. In some embodiments, the flavoring includes eugenol. In some embodiments, the flavoring includes flavor components extracted from tobacco. In some embodiments, the flavoring includes flavor components extracted from cannabis.

[0087] In some embodiments, the fragrance may include a sensory agent intended to produce a somatosensorial sensation, which is usually chemically induced and perceived by stimulation of the fifth cranial nerve (trigeminal nerve) in addition to, or instead of, the olfactory nerve or gustatory nerve, and the sensory agent may include an agent that produces a warming, cooling, tingling, or numbing effect. A suitable warming agent is, but is not limited to, vanillyl ethyl ether, and a suitable cooling agent is, but is not limited to, eucoliptol and WS-3.

[0088] In some embodiments, the aerosol-generating material contains menthol to form a menthol-containing article. The aerosol-generating material may contain 3 mg to 20 mg of menthol, preferably between 5 mg and 18 mg, more preferably between 8 mg and 16 mg. In this embodiment, the tobacco material contains 16 mg of menthol. The tobacco material may contain 2% to 8% by weight of menthol, preferably between 3% to 7% by weight, more preferably between 4% to 5.5% by weight. In some embodiments, the tobacco material contains 4.7% by weight of menthol. Such high levels of menthol usage can be achieved by using a high percentage (e.g., more than 50% by weight of the tobacco material) of recycled tobacco material. Alternatively or additionally, by using a large amount of aerosol-generating material, such as tobacco material, for example, about 500 mm 3 Ideally, approximately 1000mm 3 When ultra-aerosol-generating materials, such as tobacco materials, are used, the achievable level of menthol usage can be increased.

[0089] The present invention also relates to a method for producing an aerosol generating material as described herein, comprising the step of adding an aerosol forming material as described herein and an acid as described herein to a plant-derived component.

[0090] As shown in Figure 1, aerosol-generating materials according to some embodiments can be produced by a method that includes adding an aerosol-forming material and lactic acid to lamina tobacco, and then combining the lamina tobacco containing the aerosol-forming material with recycled tobacco material. Aerosol-generating materials according to some embodiments can also be produced by a method that includes adding an aerosol-generating material and lactic acid to a plant-derived component. The plant-derived component may include lamina tobacco and recycled tobacco material.

[0091] For example, an aerosol-forming material can be added to a plant-derived component by spraying it onto the component, or by immersing the component in the aerosol-forming material. For example, an aerosol-generating material can be produced by adding the aerosol-generating material to a laminated tobacco material and / or a recycled tobacco material.

[0092] The present invention also relates to an aerosol generating material produced by the method described herein.

[0093] The present invention relates to the use of aerosol generating materials described herein in articles for use in aerosol supply systems, such as non-flammable aerosol supply systems.

[0094] The present invention relates to articles for use in aerosol supply systems, such as non-flammable aerosol supply systems, the articles comprising aerosol generating materials as described herein.

[0095] The article may include a rod of aerosol-generating material. The rod may have a total weight between about 250 mg and about 350 mg. In one embodiment, the aerosol-generating material may be wrapped in a wrapper with less than 100 cholesta units of breathability.

[0096] The article may contain recycled tobacco material having a density of less than approximately 700 milligrams / cubic centimeter.

[0097] The article may have an outer circumference of at least about 19 mm, preferably between about 19 mm and about 23 mm, or about 21 mm. This facilitates the insertion of the article into the aerosol generating device.

[0098] The present invention also relates to a system comprising an aerosol generating material described herein and a device arranged to heat the aerosol generating material and generate an aerosol from the aerosol generating material.

[0099] In some embodiments, the system includes an article as described herein, and the aerosol generating device is arranged to receive at least a portion of the article containing the aerosol generating material, heat the portion of the article containing the aerosol generating material, and generate an aerosol from the aerosol generating material.

[0100] Figure 2 is a lateral cross-sectional view of article 1 for use with an aerosol supply device.

[0101] Article 1 comprises a mouthpiece 2 and a cylindrical rod of aerosol-generating material 3 (in this example, tobacco material) connected to the mouthpiece 2. The aerosol-generating material 3, also referred to herein as the aerosol-generating substrate 3, comprises at least one aerosol-forming material. In this embodiment, the aerosol-forming material is glycerol. In alternative embodiments, the aerosol-forming material may be another material described herein, or a combination thereof. Aerosol-forming materials have been found to improve the sensory performance of an article by helping to deliver compounds, such as fragrance compounds, from the aerosol-generating material to the consumer.

[0102] The mouthpiece portion that comes into contact with the consumer's lips is typically either hollow or a paper tube surrounding a cylindrical body of filter material.

[0103] As shown in Figure 2, the mouthpiece 2 of article 1 comprises an upstream end 2a adjacent to the aerosol generating substrate 3 and a downstream end 2b furthest from the aerosol generating substrate 3. At the downstream end 2b, the mouthpiece 2 has a hollow tubular element 4 formed from a filamentous tow. The hollow tubular element 4 has been found to advantageously significantly reduce the temperature of the outer surface of the mouthpiece 2 at the downstream end 2b that comes into contact with the consumer's mouth when article 1 is used. In addition, the use of the tubular element 4 has also been found to significantly reduce the temperature of the outer surface of the mouthpiece 2 upstream of the tubular element 4. While we do not wish to be bound by any particular theory, it is hypothesized that this temperature reduction is because the tubular element 4 brings the aerosol closer to the center of the mouthpiece 2, thereby reducing heat transfer from the aerosol to the outer surface of the mouthpiece 2.

[0104] In this embodiment, the hollow tubular element 4 is the first hollow tubular element 4, and the mouthpiece includes a second hollow tubular element 8, also called a cooling element, upstream of the first hollow tubular element 4. In this embodiment, the second hollow tubular element 8 is upstream of the material body 6, in the vicinity of the material body 6, and adjacent to the material body 6. The material body 6 and the second hollow tubular element 8 each define a substantially cylindrical overall shape and share a common longitudinal axis. The second hollow tubular element 8 is formed from multiple layers of paper wound parallel to each other by butt stitching to form the tubular element 8. In this embodiment, the first and second layers of paper are provided in a two-ply tube, but in other embodiments, three, four or more layers of paper can be used to form a tube of three, four or more layers. Other structures, such as spirally wound layers of paper, cardboard tubes, tubes formed using a papier-mâché process, or cast or extruded plastic tubes, may also be used. The second hollow tubular element 8 may also be formed using rigid plug wrap and / or chip paper as the second plug wrap 9 and / or chip paper 5 described herein. In other words, a separate tubular element is not required. The rigid plug wrap and / or chip paper is manufactured to have sufficient rigidity to withstand the axial compressive forces and bending moments that may occur during manufacturing and in use of Article 1. For example, the rigid plug wrap and / or chip paper may have a basis weight between 70 gsm and 120 gsm, more preferably between 80 gsm and 110 gsm. Additionally or alternatively, the rigid plug wrap and / or chip paper may have a thickness between 80 μm and 200 μm, more preferably between 100 μm and 160 μm, or between 120 μm and 150 μm. In order to achieve an acceptable overall rigidity level for the second hollow tubular element 8, it may be desirable that both the second plug wrap 9 and chip paper 5 have values ​​within these ranges.

[0105] The second hollow tubular element 8 preferably has a wall thickness that can be measured in the same way as the first hollow tubular element 4, which is at least about 100 μm to about 1.5 mm, preferably between 100 μm and 1 mm, more preferably between 150 μm and 500 μm, or about 300 μm. In this embodiment, the wall thickness of the second hollow tubular element 8 is about 290 μm.

[0106] Preferably, the length of the second hollow tubular element 8 is less than about 50 mm. More preferably, the length of the second hollow tubular element 8 is less than about 40 mm. Even more preferably, the length of the second hollow tubular element 8 is less than about 30 mm. In addition, or alternatively, the length of the second hollow tubular element 8 is preferably at least about 10 mm. Preferably, the length of the second hollow tubular element 8 is at least about 15 mm. In some preferred embodiments, the length of the second hollow tubular element 8 is about 20 mm to about 30 mm, more preferably about 22 mm to about 28 mm, even more preferably about 24 mm to about 26 mm, and most preferably about 25 mm. In this embodiment, the length of the second hollow tubular element 8 is 25 mm.

[0107] The second hollow tubular element 8 is positioned around the mouthpiece 2 and defines a void within the mouthpiece 2 that functions as a cooling segment. The void provides a chamber through which heated volatile components generated by the aerosol generating material 3 flow. The second hollow tubular element 8 is hollow to provide a chamber for aerosol accumulation, but is rigid enough to withstand axial compressive forces and bending moments that may occur during manufacturing and use of the article 1. The second hollow tubular element 8 introduces a physical displacement between the aerosol generating material 3 and the material body 6. The physical displacement introduced by the second hollow tubular element 8 creates a thermal gradient along the length of the second hollow tubular element 8.

[0108] Preferably, the mouthpiece 2 is 450 mm 3It has a cavity with a larger internal volume. It has been found that by providing at least such a cavity with this volume, improved aerosol formation becomes possible. Due to the size of such a cavity, sufficient space is provided within the mouthpiece 2 to cool the heated volatile components. Therefore, it becomes possible to expose the aerosol generating material 3 to a higher temperature than the limit provided because the aerosol may become too hot when not of such a cavity size. In the present embodiment, the cavity is formed by the second hollow tubular element 8, but in another arrangement, it can also be formed in another part of the mouthpiece 2. More preferably, the mouthpiece 2 has, for example, a volume of 500 mm formed within the second hollow tubular element 8 3 Larger, more preferably 550 mm 3 It has a cavity with a larger internal volume, which enables further improvement of the aerosol. In some examples, the internal cavity is from about 550 mm 3 to about 750 mm 3 For example, about 600 mm 3 or 700 mm 3 in volume.

[0109] The second hollow tubular element 8 can be configured to provide at least a 40-degree Celsius temperature difference between the heated volatile component entering the first upstream end of the second hollow tubular element 8 and the heated volatile component exiting the second downstream end of the second hollow tubular element 8. The second hollow tubular element 8 is preferably configured to provide at least a 60-degree Celsius, preferably at least an 80-degree Celsius, more preferably at least a 100-degree Celsius temperature difference between the heated volatile component entering the first upstream end of the second hollow tubular element 8 and the heated volatile component exiting the second downstream end of the second hollow tubular element 8. This temperature difference across the length of the second hollow tubular element 8 protects the temperature-sensitive material body 6 from the high temperature when the aerosol generating material 3 is heated.

[0110] In an alternative, the second hollow tubular element 8 can be replaced with an alternative cooling element, for example, an element formed from the material body that also serves the function of passing the aerosol longitudinally and cooling the aerosol.

[0111] In this embodiment, the first hollow tubular element 4, the material body 6, and the second hollow tubular element 8 are joined using a second plug wrap 9 wrapped around all three parts. Preferably, the basis weight of the second plug wrap 9 is less than 50 gsm, more preferably between about 20 gsm and 45 gsm. Preferably, the second plug wrap 9 has a thickness between 30 μm and 60 μm, more preferably between 35 μm and 45 μm. The second plug wrap 9 is preferably a non-porous plug wrap with an air permeability of less than 100 cholesta units, for example less than 50 cholesta units. However, in an alternative embodiment, the second plug wrap 9 may be a porous plug wrap with an air permeability of, for example, more than 200 cholesta units.

[0112] In this embodiment, the aerosol-generating material 3 is wrapped in a wrapper 10. The wrapper 10 may be, for example, a paper wrapper or a foil wrapper with a paper backing. In this embodiment, the wrapper 10 is substantially impermeable. In alternative embodiments, the wrapper 10 preferably has an air permeability of less than 100 cholesta units, more preferably less than 60 cholesta units. Low air permeability wrappers, for example, wrappers with an air permeability of less than 100 cholesta units, more preferably less than 60 cholesta units, have been found to result in improved aerosol formation in the aerosol-generating material 3. While we do not wish to be bound by any particular theory, it is assumed that this improvement is due to a reduction in the loss of aerosol compounds through the wrapper 10. The air permeability of the wrapper 10 can be measured according to ISO 2965:2009 for determining the air permeability of materials used as cigarette paper, filter plug wraps and filter bonding paper.

[0113] In this embodiment, the wrapper 10 comprises aluminum foil. Aluminum foil has been found to be particularly effective in promoting aerosol formation in the aerosol generating material 3. In this embodiment, the aluminum foil has a metal layer having a thickness of about 6 μm. In this embodiment, the aluminum foil has a paper backing. However, in alternative arrangements, the aluminum foil may have other thicknesses, for example, between 4 μm and 16 μm. The aluminum foil also does not need to have a paper backing; it may have a backing made of another material, for example, to help provide the foil with appropriate tensile strength, or it may not have a backing at all. Metal layers or foils other than aluminum may also be used. The total thickness of the wrapper is preferably between 20 μm and 60 μm, more preferably between 30 μm and 50 μm, and such a total thickness can provide a wrapper with appropriate structural integrity and heat transfer properties. The tension applied before the wrapper breaks is greater than 3,000 gram-force, and could be, for example, between 3,000 and 10,000 gram-force, or between 3,000 and 4,500 gram-force.

[0114] In the article, the aerosol permeability level for aerosols drawn through the article is approximately 75%. In alternative embodiments, the aerosol permeability level for aerosols drawn through the article may be between 50% and 80%, for example, between 65% and 75%. These levels of aerosol permeability help to slow the flow of aerosols drawn through the mouthpiece 2, thereby allowing the aerosols to cool sufficiently before reaching the downstream end 2b of the mouthpiece 2. The aerosols are brought directly to the mouthpiece 2 of the article 1. In this embodiment, the aerosols are brought to a second hollow tubular element 8. This has been found to be particularly beneficial in assisting the aerosol generation process. The aerosols are brought through rows of first and second parallel perforations 12, formed as laser perforations in this example, at positions 17.925 mm and 18.625 mm, respectively, from the oral downstream end 2b of the mouthpiece 2. These perforations penetrate the tip paper 5, the second plug wrap 9, and the second hollow tubular element 8. In an alternative embodiment, ventilation may be provided to the mouthpiece at another location, for example, the material body 6 or the first tubular element 4.

[0115] In this embodiment, the aerosol-forming material added to the aerosol-generating substrate 3 accounts for 14% by weight of the aerosol-generating substrate 3. Preferably, the aerosol-forming material accounts for at least 5% by weight, more preferably at least 10% by weight, of the aerosol-generating substrate. Preferably, the aerosol-forming material accounts for less than 25% by weight, more preferably less than 20% by weight, for example, between 10% and 20% by weight, between 12% and 18% by weight, or between 13% and 16% by weight.

[0116] Preferably, the aerosol generating material 3 is supplied as a cylindrical rod of aerosol generating material. Regardless of its form, the aerosol generating material preferably has a length of about 10 mm to 100 mm. In some embodiments, the length of the aerosol generating material is preferably in the range of about 25 mm to 50 mm, more preferably in the range of about 30 mm to 45 mm, and even more preferably about 30 mm to 40 mm.

[0117] The volume of the supplied aerosol generating material 3 is approximately 200 mm³. 3 ~Approximately 4300mm 3 Preferably about 500 mm 3 ~1500mm 3 , more comfortably approximately 1000mm 3 ~approximately 1300mm 3 These volumes can be changed within a certain range, for example, about 1000 mm³. 3 ~approximately 1300mm 3 It has been shown that supplying an aerosol generating material advantageously results in a superior aerosol with higher visibility and sensory performance compared to one achieved in a selected volume from the lower end of the range.

[0118] The mass of the supplied aerosol-generating material 3 may be greater than 200 mg, for example, about 200 mg to 400 mg, preferably about 230 mg to 360 mg, and more preferably about 250 mg to 360 mg. It has been found that supplying a larger mass of aerosol-generating material is advantageous in that it improves sensory performance compared to aerosols generated from a smaller mass of tobacco material.

[0119] Preferably, the aerosol generating material or substrate is formed from a tobacco material described herein that contains tobacco components. [Examples]

[0120] Measurement of nicotine and aerosol-forming material content The amounts of nicotine and aerosol-forming material can be measured using the following method.

[0121] The extraction solution can be prepared as follows: Weigh 2.5 ± 0.01 g of n-heptadecane into a weighing container, add it to a 5 L volumetric flask containing 400-500 mL of methanol, and thoroughly mix the contents of the volumetric flask to dissolve the n-heptadecane. Once dissolved, add methanol to adjust the volume of the volumetric flask to obtain the extraction solution.

[0122] Aerosol-generating materials (fragments 5-10 mm wide) are stored in sealed plastic bags or airtight containers before analysis. The samples are mixed in the bag before use to ensure uniformity.

[0123] Weigh 1.0 g (±0.01 g) of the sample into a 150 mL conical flask. Add 1.00 mL of deionized water from a calibrated pipette and let the mixture stand for 5 minutes. Add 50 mL of the extraction solution (see above) using a calibrated dispenser. Stopper the flask tightly and shake at 150 rpm for 3 hours using an orbital / horizontal shaker.

[0124] Using a 5 mL plastic syringe, filter a portion of the extract through a 0.45 μm PVDF filter and transfer it to a 2 mL GC vial.

[0125] Next, the extract in the GC vial can be analyzed using GC against a pre-prepared working calibration solution (see the table below for parameters).

[0126] The sample is injected into the injection port connected to the analysis column. A capillary GC column (Phenomenex ZB-WAXplus (30m × 0.53mm id × 1.00μm)) and a flame ionization detector (FID) can be used for the analysis.

[0127] [Table 1]

[0128] [Table 2]

[0129] [Table 3]

[0130] [Table 4]

[0131] Final results for nicotine and aerosol-forming materials [C NH (%)(dwb) can be corrected for moisture content using the following formula and expressed as a percentage of the dry sample. Moisture content can be measured by the Karl Fischer method.

[0132]

number

[0133] The nicotine target percentage defined herein can be determined by analyzing the nicotine content of a series of samples (e.g., 20 to 40 samples) and taking the average.

[0134] Example 1 Samples of lamina-containing tobacco blends (e.g., an 80:20 blend of recycled tobacco and lamina tobacco) were prepared. An acid solution (10 mL) containing either levulinic acid (LEV) or lactic acid (LA) and water was sprayed onto the sample (500 g) using a mist spray gun while rotating the sample. The amount of acid in the solution was determined based on the intended molar ratio of acid to nicotine in the resulting material. The nicotine content of the tobacco blend was measured by gas chromatography as described above. Once the number of moles of nicotine in the tobacco blend was determined, the amount of acid to be added was calculated and incorporated into the acid solution. In Example 1, the intended molar ratio of acid to nicotine in the resulting material was 1:1.

[0135] A control material was also prepared. The control material was prepared in the same manner as the corresponding material in which an acid solution was sprayed, except that the acid solution was not sprayed. Thus, the control material was identical to the material of the present invention, except that it did not contain acid.

[0136] Acid-containing materials and control materials were incorporated into smoking samples and tested by a trained sensory panel of eight panelists. Panelists were asked to rank several attributes related to the smoking experience for each smoking sample on a scale of 0 to 10 (each variation of the smoking sample was tested three times separately). The data were then analyzed for statistical significance between the test samples and the control using ANOVA and Fisher's LSD (95% CL) test. The results are shown in Table 5. FP represents the first puff, and DS represents smoking.

[0137] [Table 5]

[0138] As shown in Table 5, the aerosol generating material according to the present invention shows a significant improvement in user experience. In particular, the aerosol generating material according to the present invention improves user irritation (FP and DS) and reduces dry mouth.

[0139] 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 representative examples of the embodiments and are not exhaustive and / or exclusive. It should be understood that the advantages, embodiments, examples, functions, features, structures, and / or other aspects described herein are not intended to be considered limitations to the scope of the invention as defined by the claims or to equivalents of the claims, and that other embodiments may be utilized and modified without departing from the scope of the claimed invention. Various embodiments of the invention may preferably include, consist of, or essentially consist of, any other disclosed elements, components, features, parts, steps, means, etc., not described in detail herein. In addition, this disclosure may include other inventions that are not currently claimed but may be claimed in the future.

Claims

1. A plant-derived component, an aerosol-forming material, and an aerosol-generating material containing an acid, The plant-derived component contains approximately 20% or more of plant-derived material by dry weight, and the nicotine content of the plant-derived material is 1.5% or more by dry weight; The total amount of the aerosol-forming material is about 10% to about 30% by weight of the aerosol-generating material; An aerosol generating material wherein the total amount of the acid is about 0.1% to about 5% by weight of the aerosol generating material.

2. The aerosol generating material according to claim 1, wherein the acid is selected from the group consisting of lactic acid, levulinic acid, benzoic acid, citric acid, 2-methylbutyric acid, and 2-methylvaleric acid; optionally, the acid is lactic acid or levulinic acid.

3. The aerosol generating material according to claim 1 or 2, wherein the plant-derived material is a plant-based material or a tobacco material.

4. The aerosol generating material according to claim 3, wherein the tobacco material is a laminated tobacco material.

5. The aerosol generating material according to any one of claims 1 to 4, wherein the plant-derived component comprises the plant-derived material in an amount of about 20% to about 99% by weight of the plant-derived component.

6. The aerosol generating material according to any one of claims 1 to 5, wherein the nicotine content of the plant-derived material is about 1.5% to about 5% by dry weight of the plant-derived material.

7. The aerosol generating material according to any one of claims 1 to 6, wherein the nicotine content of the plant-derived component is about 0.5% to about 3% by dry weight of the plant-derived component.

8. The aerosol generating material according to any one of claims 1 to 7, wherein the plant-derived component contains the acid in an amount of about 50% to about 99% of the total amount of the acid in the aerosol generating material.

9. The aerosol generating material according to any one of claims 1 to 8, wherein the total amount of the aerosol forming material is about 10% by weight to about 20% by weight of the aerosol generating material.

10. The aerosol generating material according to any one of claims 1 to 9, wherein the aerosol forming material 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, a mixture of diacetin, benzyl benzoate, benzyl phenylacetate, tributyline, lauryl acetate, lauric acid, myristic acid, propylene carbonate, and mixtures thereof.

11. The aerosol generating material according to any one of claims 1 to 10, wherein the aerosol forming material contains glycerol in an amount of about 10% to about 90% by weight of the aerosol forming material.

12. The aerosol generating material according to any one of claims 1 to 11, wherein the plant-derived component comprises recycled tobacco material in an amount of about 50% to about 80% by weight of the plant-derived component.

13. The aerosol generating material according to any one of claims 1 to 12, wherein the plant-derived component comprises a plant-derived material selected from the group consisting of extruded tobacco, band-cast tobacco, and mixtures thereof.

14. A plant-derived component containing nicotine, an aerosol-forming material, and an aerosol-generating material containing an acid, The aerosol generating material contains the acid in an amount of about 50% to about 200% relative to the number of moles of nicotine in the plant-derived component.

15. The aerosol generating material according to claim 14, wherein the acid is selected from the group consisting of lactic acid, levulinic acid, benzoic acid, citric acid, 2-methylbutyric acid, and 2-methylvaleric acid; optionally, the acid is lactic acid or levulinic acid.

16. The aerosol generating material according to any one of claims 13 to 15, wherein the total amount of the aerosol forming material is about 10% by weight to about 30% by weight of the aerosol generating material.

17. The aerosol generating material according to any one of claims 14 to 16, wherein the plant-derived component includes a plant-derived material selected from the group consisting of plant materials or tobacco materials.

18. The aerosol generating material according to any one of claims 14 to 17, wherein the plant-derived component comprises a plant-derived material having a nicotine content of about 1.5% to about 5% by dry weight of the plant-derived material.

19. The aerosol generating material according to any one of claims 14 to 18, wherein the plant-derived component includes a lamina tobacco material.

20. The aerosol generating material according to any one of claims 14 to 19, wherein the nicotine content of the plant-derived component is about 0.5% to about 2% by dry weight of the plant-derived component.

21. The aerosol generating material according to any one of claims 14 to 20, wherein the aerosol forming material contains glycerol in an amount of about 10% to about 90% by weight of the aerosol forming material.

22. A method for producing an aerosol generating material according to any one of claims 1 to 21, comprising the step of adding the aerosol forming material and the acid to the plant-derived component.

23. An aerosol generating material manufactured by the method described in claim 22.

24. Use of an aerosol generating material according to any one of claims 1 to 21 and 23 in an article for use in an aerosol supply system.

25. An article for use in an aerosol supply system, comprising an aerosol generating material according to any one of claims 1 to 21 and claim 23.

26. A system comprising an aerosol generating material according to any one of claims 1 to 21 and claim 23, and a device arranged to heat the aerosol generating material to generate an aerosol from the aerosol generating material.

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