Items for use in aerosol delivery systems

Abstract

An article for use in a non-combustible aerosol delivery system is described. The article comprises an aerosol generating part, and the aerosol generating part comprises an aerosol generating material wrapped in a wrapper. The wrapper comprises a plant material containing an active substance.

Description

Technology Field

[0001] The present invention relates to an article for use in a non-combustible aerosol providing system, a method for manufacturing the article, and a system comprising a device for heating the article and the aerosol generating material of the article. Background Technology

[0002] Certain products generate aerosols during use, which are inhaled by the user. For example, heating devices form aerosols by heating aerosol-generating materials without burning them. These products typically contain aerosol-generating materials formed into rods using a wrapper. The aerosol-generating materials are positioned to release aerosols when heated.

[0003] According to embodiments of the invention, In the first aspect An article for use in a non-combustible aerosol delivery system is provided, the article comprises an aerosol generating part, the aerosol generating part comprises an aerosol generating material wrapped in a wrapper, and the wrapper comprises a plant material containing an active substance.

[0004] The aerosol generating unit can be positioned to be heated to generate an aerosol when used in a non-combustible aerosol supply system.

[0005] In some embodiments, the aerosol generating portion may be a rod. In some embodiments, the wrapper may be positioned to extend around the aerosol generating material, for example, around the longitudinal surface of the rod.

[0006] The wrapper may be positioned to be heated to generate an aerosol when used in a non-combustible aerosol delivery system. In some embodiments, the wrapper may be positioned to be heated to generate an aerosol before the aerosol is generated by the aerosol generating material when used in a non-combustible aerosol delivery system such as that of the fourth aspect.

[0007] In some embodiments, the wrapper may be a single-layer wrapper.

[0008] In some embodiments, the wrapper may contain an aerosol-forming material in an amount of less than 5 mass%. In some embodiments, the wrapper may contain an aerosol-forming material in an amount of less than 3 mass% or less than 1 mass%. Preferably, the wrapper does not contain an aerosol-forming material or substantially does not contain an aerosol-forming material. These values ​​apply specifically to the wrapper itself, except for any aerosol-forming material that may be present in a thin film or other composition attached to the wrapper.

[0009] In some embodiments, the wrapper is 42 g / m² based on dry weight. 2 It may be less. In some embodiments, the wrapper is 40 g / m² based on dry weight. 2 It may be less. In some embodiments, the wrapper is 39 g / m² based on dry weight. 2 It may be less than

[0010] In some embodiments, the wrapper is 80-100 g / m² on a dry weight basis. 2 It may be. In some embodiments, the wrapper is 85-95 g / m² on a dry weight basis. 2 It may be. In some embodiments, the wrapper is about 90 g / m² on a dry weight basis. 2 It could be.

[0011] In some embodiments, the wrapper may have a moisture content of less than 12%. In some embodiments, the wrapper may have a moisture content of less than 10%. In some embodiments, the moisture content of the wrapper may be about 9%.

[0012] In some embodiments, the wrapper may have a tensile strength of 5-15 N / 15 mm. In some embodiments, the wrapper may have a tensile strength of 7-14 N / 15 mm, or 10-13 N / 15 mm. In some embodiments, the wrapper may have a tensile strength of about 12 N / 15 mm.

[0013] In some embodiments, the wrapper is not a conventional paper wrapper and does not contain wood pulp. In some embodiments, the wrapper does not contain cellulose fibers.

[0014] In some embodiments, the wrapper may comprise a thin film. The thin film may comprise less than 20 wt%, e.g., 1-15 wt% of water and / or 5-80 wt%, e.g., 10-50 wt% of an aerosol-forming material.

[0015] In some embodiments, the wrapper may be composed of or include a single plant material containing a single active substance. In some embodiments, the wrapper may be composed of or include a single plant material containing a plurality of different active substances.

[0016] In some embodiments, the active substance may include nutraceuticals, nootropics, and / or psychotropic substances. In some embodiments, the active substance may include caffeine, taurine, theine, vitamins such as B6 or B12 or C, melatonin, and cannabinoids.

[0017] In some embodiments, the wrapper may be composed of or include a combination of plant-based materials. Each of the plant-based materials may include a different active substance.

[0018] In some embodiments, the plant material may consist of or contain tobacco. The wrapper may contain 20-90% tobacco. For example, the wrapper may contain 25-80% or 30-70% tobacco.

[0019] In some embodiments, the wrapper may be composed of or include a reconstituted tobacco material. In some embodiments, the wrapper may be composed of an essential component of the reconstituted tobacco material.

[0020] In some embodiments, the wrapper may contain nicotine or a nicotine salt.

[0021] In some embodiments, the botanical material may consist of or include a non-tobacco botanical material. In some embodiments, the non-tobacco botanical material may consist of or include mint, chamomile, eucalyptus, lavender, ginger, rooibos, cinnamon, star anise, cocoa, hemp, fennel, and / or clove material. Including rooibos in the wrapper has been found to reduce off-notes, particularly paper off-notes. In some embodiments, the non-tobacco botanical material may consist of or include rooibos. In some embodiments, the non-tobacco botanical material may consist of or include cannabis.

[0022] In some embodiments, the wrapper may be composed of or contain reconstituted non-tobacco plant material.

[0023] The wrapper may be composed of or contain mint, chamomile, eucalyptus, lavender, ginger, rooibos, cinnamon, star anise, cocoa, hemp, fennel, and / or clove ingredients. In some embodiments, the wrapper may be composed of or contain rooibos. The use of a wrapper containing rooibos has been found to produce very light and pleasant vapor when heated. In some embodiments, the wrapper may be composed of or contain cannabis.

[0024] In some embodiments, the active substance may include nutraceuticals, nootropics, and / or psychotropic substances. In some embodiments, the active substance may include nicotine or a nicotine salt. In some embodiments, the nicotine salt may be selected from nicotine benzoate, nicotine levulinate, nicotine citrate, nicotine lactate, or combinations thereof. In some embodiments, the active substance may include caffeine, taurine, theine, vitamins such as B6 or B12 or C, melatonin, and cannabinoids.

[0025] In some embodiments, the active substance may be a substance naturally present in the plant material.

[0026] In some embodiments, the aerosol generating material may include a plant material containing an active substance.

[0027] In some embodiments, the aerosol generating material may include tobacco. In some embodiments, the aerosol generating material may consist of or include tobacco components.

[0028] In some embodiments, the tobacco component may include leaf tobacco. Leaf tobacco may be included in the tobacco component in an amount of about 10% to about 30% based on the weight of the tobacco component.

[0029] In some embodiments, the tobacco material may comprise a blend containing laminar. In some embodiments, the blend may comprise more than 50% laminar, such as more than 60%, more than 70%, more than 80%, or more than 90% laminar. In some embodiments, the blend comprises more than 95% laminar, and in some embodiments, the blend essentially comprises 100% laminar.

[0030] In some embodiments, the tobacco component may include a reconstituted tobacco material. The reconstituted tobacco material may be included in the aerosol generating material in an amount of about 70% to about 90% by weight of the tobacco component.

[0031] In some embodiments, the aerosol-generating material may be composed of or include a non-tobacco plant material component. The non-tobacco plant material component may be composed of or include mint, chamomile, eucalyptus, lavender, ginger, rooibos, cinnamon, star anise, cocoa, hemp, fennel, and / or clove material. In some embodiments, the non-tobacco plant material may be composed of or include rooibos. In some embodiments, the non-tobacco plant material may be composed of or include cannabis.

[0032] In some embodiments, the aerosol generating material may be composed of or may include a single plant material comprising a single active substance. In some embodiments, the aerosol generating material may be composed of or may include a single plant material comprising a plurality of different active substances. In some embodiments, the aerosol generating material may include a blend comprising different plant materials, and the different plant materials may include plant materials and non-tobacco plant materials. In some embodiments, the aerosol generating material may include a blend comprising mint, chamomile, eucalyptus, lavender, ginger, rooibos, cinnamon, star anise, cocoa, hemp, fennel, and / or clove materials. In some embodiments, the aerosol generating material may include a blend comprising rooibos. In some embodiments, the aerosol generating material may include a blend comprising cannabis.

[0033] In some embodiments, the wrapper and the aerosol generating material may comprise the same plant material. It has been found that off-flavor is reduced when the wrapper and the aerosol generating material comprise the same plant material.

[0034] In some embodiments, the wrapper and the aerosol generating material may comprise the same plant material, but may comprise it in different forms. For example, in some embodiments, the wrapper and the aerosol generating material may comprise the same plant material and the same active substance, but may comprise it at different levels, or may be arranged to release the active substance as an aerosol at different intensity levels or at different temperatures upon use.

[0035] In some embodiments, the wrapper and the aerosol generating material may include tobacco plant material, but may include it in different forms. For example, in some embodiments, the wrapper may include reconstituted tobacco material, and the aerosol generating material may include a tobacco blend, such as a tobacco blend containing laminar. In some embodiments, the wrapper may include a tobacco material that provides a stronger flavor, and the aerosol generating material may include a less strong tobacco, or vice versa. For example, in some embodiments, the wrapper may include dark tobacco, and the aerosol generating material may include light tobacco. In some embodiments, the wrapper may include a tobacco material having a higher nicotine content than the tobacco material of the aerosol generating material. It has been advantageously found that the use of a wrapper containing a higher level of nicotine than the aerosol generating material enables the use of tobacco with lower levels in the aerosol generating material.

[0036] In some embodiments, the wrapper may comprise a tobacco material having a lower nicotine content than the tobacco material of the aerosol-generating material. In some embodiments, the wrapper may comprise a tobacco material that releases nicotine at a lower temperature than the tobacco material of the aerosol-generating material when used.

[0037] In some embodiments, the wrapper and the aerosol generating material may comprise the same non-tobacco plant material. In some embodiments, the wrapper and the aerosol generating material may comprise the same non-tobacco plant material, but may comprise it in different forms. For example, in some embodiments, the wrapper may comprise rooibos, and the aerosol generating material may comprise rooibos.

[0038] In some embodiments, the wrapper may comprise a non-tobacco plant material having a lower active substance content than the non-tobacco plant material of the aerosol generating material. In some embodiments, the wrapper may comprise a non-tobacco plant material that releases the active substance at a lower temperature than the non-tobacco plant material of the aerosol generating material upon use.

[0039] In some embodiments, the wrapper comprises a non-tobacco plant material, and the aerosol generating material comprises a different plant material, and the different plant material may be a tobacco or non-tobacco plant material.

[0040] In some embodiments, the wrapper comprises a tobacco plant material, which may be a reconstituted tobacco material, and the aerosol generating material comprises a different plant material, which may be a non-tobacco plant material.

[0041] In some embodiments, the aerosol generating material may include an active substance. In some embodiments, the active substance may include nutraceuticals, nootropics, and / or psychotropic substances. In some embodiments, the active substance may include caffeine, taurine, theine, vitamins such as B6 or B12 or C, melatonin, and cannabinoids.

[0042] In some embodiments, the aerosol generating material may contain nicotine or a nicotine salt. In some embodiments, the aerosol generating material may contain nicotine or a nicotine salt in an amount of up to 3% by weight. In some embodiments, the aerosol generating material may further contain an acid. In some embodiments, the aerosol generating material may contain an acid in an amount of about 0.1% to about 5% by weight. In some embodiments, the acid may include one or more acids selected from lactic acid, benzoic acid, citric acid, levulinic acid, 2-methylbutyric acid, and 2-methylvaleric acid.

[0043] In some embodiments, the aerosol generating material may include an aerosol forming material. In some embodiments, the aerosol generating material may include an aerosol forming material in an amount of 10-30% by dry weight. In some embodiments, the aerosol generating material may include an aerosol forming material in an amount of 12-25% or 15-20% by dry weight. In some embodiments, the aerosol forming material may include glycerol, propylene glycol, or a mixture of glycerol and propylene glycol. In some embodiments, the aerosol generating material may include a thin film material.

[0044] In some embodiments, the article may have a mouthpiece. In some embodiments, the mouthpiece may include a mouthpiece body, which may include a plug of filter material wrapped in a plug wrapper. In some embodiments, the mouthpiece may be attached to an aerosol generating part using tipping paper.

[0045] In some embodiments, the article may include an aerosol cooling section downstream of the aerosol generating section. In some embodiments, the aerosol cooling section may include a cavity.

[0046] In some embodiments, the article may include a hollow tubular element at the end of the mouse.

[0047] In some embodiments, the tipping paper may be colored. For example, the tipping wrapper may be a brown cork color similar to tobacco or reconstituted tobacco material.

[0048] In some embodiments, the tipping wrapper may comprise a plant material containing an active substance. In some embodiments, the tipping wrapper may comprise the same plant material as the wrapper of the aerosol generating part. In some embodiments, the tipping wrapper may comprise the same material as the wrapper of the aerosol generating part.

[0049] In some embodiments, the tipping wrapper may be airtight. In some embodiments, the tipping wrapper may be perforated to provide filter airtightness of about 40% or more, for example, 40-65%.

[0050] In some embodiments, the article may comprise a body of material positioned upstream of an aerosol generating unit. In some embodiments, the body of material may comprise a sheet material wrapped in a wrapper. In some embodiments, the sheet material and / or the wrapper of the sheet material may comprise a plant material containing an active substance. In some embodiments, the body of material may be attached to the aerosol generating unit using a connecting wrapper.

[0051] In some embodiments, the connecting wrapper may cover the length of the aerosol generating portion. In these embodiments, at least one of the wrapper of the aerosol generating material and the connecting wrapper may comprise a plant material containing an active substance.

[0052] In some embodiments, the connecting wrapper may cover only a portion of the length of the aerosol generating portion. In these embodiments, the wrapper of the aerosol generating material, and optionally the connecting wrapper, also comprises a plant material containing an active substance.

[0053] According to embodiments of the invention, In the second aspect A method for manufacturing an article according to a first aspect is provided, the method comprising the step of wrapping an aerosol-generating material with a wrapper to form an aerosol-generating portion, wherein the wrapper comprises a plant material containing an active substance.

[0054] The method may include the step of forming an aerosol generating part by wrapping the body of an aerosol generating material with a wrapper containing a plant material containing an active substance.

[0055] In some embodiments, the method is,

[0056] (a) A step of forming an aerosol generating part by wrapping the body of an aerosol generating material with a wrapper containing a plant material containing an active substance;

[0057] (b) a step of providing a mouthpiece rod comprising first and second ends;

[0058] (c) a step of placing an aerosol generating part at the first end of the mouthpiece rod; and

[0059] (d) may include the step of connecting the aerosol generator to the mouthpiece rod by wrapping a tipping paper around at least a portion of the length of the mouthpiece rod and the aerosol generator.

[0060] In some embodiments, the method is,

[0061] (a) forming each of the first and second aerosol generating parts by wrapping the body of the aerosol generating material with a wrapper containing a plant material containing an active substance;

[0062] (b) a step of providing a mouthpiece rod comprising first and second ends;

[0063] (c) A step of placing a first aerosol generating part at the first end of the mouthpiece rod;

[0064] (d) A step of placing a second aerosol generating part at the second end of the mouthpiece rod;

[0065] (e) connecting the first and second aerosol generating parts to the mouthpiece rod by wrapping a tipping paper around at least a portion of the length of each of the mouthpiece rod and the first and second aerosol generating parts; and

[0066] (f) may include the step of cutting the mouthpiece rod at about halfway along its length to form the first and second substantially identical articles.

[0067] The step of forming each of the first and second aerosol generating parts may include wrapping a single body of the aerosol generating material with a wrapper and cutting the wrapped aerosol generating material to form the first and second aerosol generating parts, which may be substantially identical.

[0068] According to embodiments of the invention, In the third aspect An article for use in a non-combustible aerosol delivery system is provided, and the article is manufactured according to a second aspect.

[0069] According to embodiments of the invention, In the fourth aspect A system is provided comprising an article described in the first or third aspect and a heating device configured to heat an aerosol generating portion of the article.

[0070] In some embodiments, the heating device may include a cavity arranged to accommodate an aerosol generating portion of an article and to heat the outer surface of the aerosol generating portion.

[0071] In some embodiments, the heating device may include a cavity, the cavity may include an inner surface positioned to contact a longitudinal circumferential surface of the aerosol generating part, and the inner surface may be configured to heat a wrapper of the aerosol generating part to generate an aerosol containing an active substance from the wrapper.

[0072] In some embodiments, the heating device may be configured to heat the aerosol generating unit to a temperature of about 200°C to 300°C.

[0073] In some embodiments, the heating device may be configured to accommodate an aerosol generating unit and to heat the wrapper to generate an aerosol containing an active substance from the wrapper of the aerosol generating unit.

[0074] In some embodiments, a heating device may be configured to accommodate an aerosol generating unit and to heat the aerosol generating unit to generate an aerosol containing an active substance from a wrapper before an aerosol containing an active substance is generated from an aerosol generating material.

[0075] In some embodiments, the system may be configured to heat the aerosol generating unit to generate an aerosol from the wrapper of the aerosol generating unit, and when used, the aerosol composition of the initial puff is different from the aerosol composition of the initial puff generated using an article that does not include a wrapper of the aerosol generating unit containing a plant material containing an active substance.

[0076] In some embodiments, the system may be configured to heat the aerosol generating unit to generate aerosols from both the wrapper of the aerosol generating unit and the aerosol generating material, wherein the aerosol from the wrapper may be detected by the user before the aerosol from the aerosol generating material. Brief explanation of the drawing

[0077] Embodiments of the invention will now be described only by way of example with reference to the accompanying drawings, and in the drawings, Fig. 1a is a schematic perspective view of an article (1) for use with a non-combustible aerosol providing device, wherein the article includes an aerosol generating part comprising an aerosol generating material wrapped in a wrapper. Fig. 1b is a cross-sectional view of the aerosol generating portion of the article shown in FIG. 1a at the position marked A-A'. Fig. 2is a side cross-sectional view of an article (1') for use with a non-combustible aerosol providing device, wherein the article includes an aerosol generating part comprising an aerosol generating material wrapped in a wrapper. Fig. 3 is a side cross-sectional view of an article (1'') for use with a non-combustible aerosol providing device, wherein the article includes an aerosol generating part comprising an aerosol generating material wrapped in a wrapper. Fig. 4 is a perspective view of a non-combustible aerosol providing device for generating an aerosol from an aerosol generating part of the articles (1, 1', and / or 1'') of FIGS. 1a, 2, and 3. Fig. 5 Figure 4 illustrates the device with the outer cover removed and no items inside. Fig. 6 This is a side view of the device in Fig. 4, illustrated in partial cross-section. Fig. 7 This is an exploded view of the device of Fig. 4 with the outer cover omitted. Fig. 8a is a cross-sectional view of a part of the device of Fig. 4. Fig. 8b is an enlarged view of the area of ​​the device in Fig. 8a. Fig. 9 This is a flowchart illustrating a method for manufacturing an article for use with a non-combustible aerosol providing device. Specific details for implementing the invention

[0078] details

[0079] In the drawings described in this specification, the same reference numerals are used to denote equivalent features, articles, or components.

[0080] Embodiments of FIGS. 1a and FIGS. 1b

[0081] FIG. 1a illustrates an article (1) for use in an aerosol delivery system. The article (1) may be used with a non-combustible aerosol delivery device, such as the device shown in FIG. 4 to 8, for example, to form a non-combustible aerosol delivery system.

[0082] The article (1) includes an aerosol generating part (17), which in this case includes a cylindrical rod of an aerosol generating material (3), which may also be referred to as an aerosol generating material in this specification, and includes a wrapper (10). The rod of the aerosol generating material (3) is wrapped by the wrapper (10) as shown in the cross-sectional view of FIG. 1B. A mouthpiece (2) is attached to one end of the aerosol generating part (17).

[0083] When in use, the article (1) may be inserted into a non-combustible aerosol providing device such as the device (100) described with reference to FIGS. 4 through 8. When the article (1) is inserted into the non-combustible aerosol providing device, at least a portion of the mouthpiece (2) of the article (1) may protrude from the device and be positioned between the user's lips. For example, as shown in FIG. 8, the article (1) (indicated as (110) in FIG. 8) is received within the cavity of a device arranged to heat the article.

[0084] The article and the device are dimensioned such that the outer surface (18) of the aerosol generating portion (17) of the article contacts the inner surface of the device, thereby optimizing the efficiency of the device heating the aerosol generating material (3) of the article. As heated, the aerosol generating material (3) generates an aerosol, which can be inhaled by a user through the mouthpiece (2) along the length of the article (1).

[0085] Accordingly, the aerosol generating material of the article is heated through the circumferential outer surface (18) of the aerosol generating part of the article shown in FIG. 1b. In existing articles, it was found that the level of aerosol provided to the user during the first few seconds (or puffs), and consequently the level of active material, is lower than the level subsequently provided after the user has used the article for a short period of time. The inventors discovered that this initial reduced aerosol level is due to a delay in the aerosol generating part of the article reaching the aerosol generating temperature as the aerosol generating part is heated from the outside through the longitudinal surface.

[0086] The inventors discovered that by using a wrapper (10) containing a plant material containing an active substance around an aerosol generating part (3), the level of the active substance provided to the user during the first few seconds (or puffs) can be increased. When used, when the article (1) is inserted into a non-combustible aerosol providing device, the wrapper (10) is the part of the article closest to the heater of the device. Thus, the wrapper (10) reaches the aerosol generating temperature faster than the aerosol generating material (3) and provides the active substance to the user before the aerosol containing the active substance is provided by the aerosol generating material. Therefore, the aerosol generated from the wrapper can be detected by the user before the aerosol generated from the aerosol generating material.

[0087] The present invention is based, in part, on the surprising discovery that even if the wrapper material is heated to a much lower temperature than in products designed to generate aerosols by combustion, a significant level of aerosol and, consequently, active substance can be generated from the wrapper and detected by the user. Furthermore, the inventors discovered that satisfactory levels of aerosol and active substance can be generated from the wrapper even if only very low levels of aerosol-forming material are present within the wrapper. The requirement that there be little to no aerosol-forming material within the wrapper has been found to provide significant advantages in relation to the handling of the wrapper and the manufacture of the article.

[0088] In the embodiment illustrated in FIG. 1a, the aerosol generating material (3) comprises tobacco material, and the wrapper (10) comprises reconstituted tobacco comprising nicotine. Thus, in the illustrated embodiment, when the article (1) is used in a non-combustible aerosol providing device such as the device illustrated in FIG. 4 through 8, during the first few seconds (or puffs), the active substance comprising nicotine is provided to the user from the wrapper, which is rapidly heated by contacting the inner surface of the device. Subsequently, after a short delay in which the aerosol generating material comprising tobacco material inside the article is heated to an aerosol generating temperature, this material becomes the primary source of the active substance provided to the user. In the illustrated embodiment, the aerosol generating material (3) is a blend comprising tobacco laminar referred to as "Dark Tobacco".

[0089] As discussed in more detail below, any suitable material may be used as an aerosol generating material. In some embodiments, for example, the aerosol generating material may comprise a blend of tobacco and reconstituted tobacco material. In some embodiments, the aerosol generating material may comprise a sheet of reconstituted tobacco material, such as a cast sheet of reconstituted tobacco material. In some embodiments, the aerosol generating material may be composed of or include tobacco material. In some embodiments, the aerosol generating material may be composed of or include a non-tobacco material containing an active substance, such as a non-tobacco plant material.

[0090] The aerosol-forming material may comprise an aerosol-forming material in a total amount of 10% to 30% by weight based on dry weight. In some embodiments, the aerosol-forming material may comprise an aerosol-forming material in a total amount of 12% to 25% by weight, for example, 15% to 20% by weight. References to composition by weight in this specification refer to dry weight.

[0091] In some embodiments, for example, the aerosol-forming material may comprise a blend comprising a first material having a relatively high aerosol-forming material content and a second material having a relatively low aerosol-forming material content. For example, in some embodiments, the first material may comprise a thin film having an aerosol-forming material content of up to 80 wt%, up to 70 wt%, or up to 60 wt%, such as 5-55 wt%, or 10-50 wt%. In these embodiments, the second material may comprise a laminar material having an aerosol-forming material content of less than 5 wt%, less than 3 wt%, or essentially no aerosol-forming material.

[0092] Despite the important role of the wrapper (10) of the disclosed article in delivering the active substance to the user, the inventors have surprisingly discovered that, in terms of delivering, handling, and manufacturing the active substance, it may be advantageous to use a wrapper of a rod of aerosol-forming material that contains little or no aerosol-forming material. Accordingly, in some embodiments, the wrapper of a rod of aerosol-forming material contains the aerosol-forming material in an amount of less than 5% by weight, preferably less than 3%. Preferably, the wrapper of a rod of aerosol-forming material contains less than 1% of the aerosol-forming material, and more preferably, does not contain the aerosol-forming material.

[0093] The wrapper (10) of the aerosol generating material load comprises a plant material containing an active substance. The wrapper may comprise any plant material, and in the embodiment illustrated in FIG. 1a, the plant material comprises a tobacco material. The plant materials and active substances are discussed in detail below.

[0094] In the embodiment illustrated in FIG. 1a, the wrapper comprises reconstituted tobacco material. In other embodiments, the wrapper may comprise other plant materials.

[0095] In the illustrated embodiment, the tobacco content of the reconstituted tobacco material is 30%. In other embodiments, the reconstituted tobacco material may contain tobacco material in an amount of at least 10%, e.g., at least 15%, at least 20%, or at least 25%.

[0096] In the embodiment illustrated in FIG. 1a, the wrapper (10) of the aerosol-generating material load is preferably a single-layer wrapper. The use of a single-layer wrapper advantageously minimizes any insulating effect of the wrapper against the heating of the aerosol-generating material.

[0097] The wrapper (10) of the aerosol-generating material load may have a porosity of 3-65 CORESTA. In particular, the use of a single-layer wrapper having this range of porosity has been found to be advantageous for use in the disclosed articles. In some embodiments, the wrapper may have a porosity of 10-55, 15-50, or 20-47 Coresta Units.

[0098] The wrapper (10) of the aerosol-generating material rod may have a relatively low basis weight. This has been found to minimize insulation of the aerosolizable material. In some embodiments, the wrapper (10) of the aerosol-generating material rod is about 25 g / m² 2 (Grams per square meter) to about 60 g / m² 2 , approximately 30 g / m² 2 Up to 50 g / m² 2 , or about 35 g / m² 2 Up to 45 g / m 2 It may have a basis weight of about 42 g / m². In preferred embodiments, the wrapper (10) is about 42 g / m² 2 Less than, or about 40 g / m² 2 It may have a basis weight of less than 39 g / m². Preferably, the wrapper is about 39 g / m² 2 It can have a basis weight.

[0099] The wrapper (10) of the aerosol generating material rod may have a tensile strength of 5 N / 15 mm to 15 N / 15 mm. In some embodiments, the tensile strength of the wrapper (10) may be 7 N / 15 mm to 14 N / 15 mm, e.g. 10 N / 15 mm to 13 N / 15 mm. In preferred embodiments, the tensile strength of the wrapper (10) may be about 12 N / 15 mm. The tensile strength of the wrapper may be determined according to test method T 494.

[0100] The wrapper (10) of the aerosol-generating material rod may have a moisture content of 5% to 15%. In some embodiments, the moisture content of the wrapper (10) may be 6% to 13%, e.g., 7% to 11%. In preferred embodiments, the wrapper may have a moisture content of less than about 12%, less than about 11%, or less than about 10%. The moisture content of the wrapper (10) may be about 8% or 9%, and in some embodiments, preferably about 9%.

[0101] In the article (1) illustrated in FIG. 1a, the mouthpiece (2) is axially aligned with a rod of aerosol-generating material (3). The mouthpiece (2) comprises a cylindrical filter comprising a plug of fibrous material (6) (in this case, cellulose acetate tow) wrapped by a plug wrapper (7). Suitable filter materials are discussed in more detail below.

[0102] In the illustrated embodiment, the rod of the aerosol generating material (3) has a length of about 34 mm, and the mouthpiece has a length of about 41 mm. However, any other suitable lengths may be used for the rod of the aerosol generating material (3) and / or the mouthpiece (2). Generally, the length of the rod of the aerosol generating material and / or the mouthpiece is determined by the arrangement of the device, in particular by the size and length of the heater cavity of the device.

[0103] In this example, the article (1) has an outer circumference of about 21 mm (i.e., the article is in a demi-slim format). Any of the articles described herein may be provided as any of the described formats, for example, having an outer circumference of 15 mm to 25 mm.

[0104] A mouthpiece wrapper (5), also described herein as a tipping wrapper (5), wraps around the entire length of the mouthpiece (2) and the adjacent portion of the rod of the aerosol generating material (3), and has an adhesive on its inner surface to connect the mouthpiece (2) and the rod (3).

[0105] In this example, the tipping wrapper (5) extends 5 mm over the rod of the aerosol generating material (3), so the tipping strip extends about 46 mm along the article from the end of the mouthpiece. In other embodiments, the tipping strip may extend 3 mm to 10 mm, e.g. 4 mm to 6 mm, over the rod (3) to provide a firm attachment between the mouthpiece (2) and the rod (3).

[0106] In some embodiments, the tipping wrapper (5) is colored. For example, in some embodiments, the tipping wrapper may have a brown cork color similar to the tobacco material or reconstituted tobacco material.

[0107] In some embodiments, the tipping wrapper (5) comprises paper. In some embodiments, the tipping wrapper (5) comprises a plant material, such as a plant material containing an active substance. In some embodiments, the tipping wrapper (5) comprises the same material as the wrapper (10) of the aerosol-generating material. In some embodiments, the tipping wrapper (5) comprises a reconstituted tobacco material. In some embodiments, the tipping wrapper (5) comprises a tobacco leaf.

[0108] The tipping wrapper (5) has a basis weight higher than that of the plug wrappers used in the article (1), for example, 40 g / m² 2 Up to 80 g / m² 2 The basis weight of, more preferably 50 g / m² 2 Up to 70 g / m² 2 It can have a basis weight of 58 g / m², and in this example, 58 g / m² 2These basis weight ranges were found to result in tipping wrappers that have acceptable tensile strength while being flexible enough to be wrapped around an article (1) and self-adhering along a longitudinal lap seam on the paper. In the embodiment of FIG. 1a, the outer circumference after the tipping wrapper (5) is wrapped around the mouthpiece (2) is about 21 mm.

[0109] Perforations (12) may be provided in the tipping wrapper (5) as needed to provide the desired suction resistance. The suction resistance defined herein is measured according to the ISO standard method (ISO6565:2015). The suction resistance refers to 'closed suction resistance,' which is a state in which any ventilation zones to the article or the body being measured are closed.

[0110] An embodiment of Fig. 2

[0111] FIG. 2 illustrates an additional article (1') for use in an aerosol delivery system.

[0112] Article (1') may be used with a non-combustible aerosol providing device, such as the device shown in FIGS. 4 through 8, to form a non-combustible aerosol providing system. Article (1') includes an aerosol generating part as defined in relation to the embodiment shown in FIGS. 1a and 1b. The aerosol generating part includes a load of an aerosol generating material (3) wrapped in a wrapper (10).

[0113] However, item (1') has a different mouthpiece arrangement (2) compared to item (1).

[0114] mouthpiece

[0115] The embodiment illustrated in FIG. 2 includes a mouthpiece at the mouse (i.e., downstream) end of the article (1').

[0116] In the embodiment illustrated in FIG. 2, the mouthpiece (2) includes a cooling section (13) located downstream of a rod of aerosol generating material (3). In this example, the cooling section (13) is in contact with the rod of aerosol generating material (3). In other examples, additional components may be provided between the rod of aerosol generating material (3) and the cooling section (13).

[0117] In the illustrated embodiment, the mouthpiece (2) also includes a mouthpiece body (14) downstream of the cooling section (13).

[0118] In the illustrated embodiment, the cooling section (13) forms an air gap within the mouthpiece. The air gap provides a chamber through which heated volatile components generated by the rod of the aerosol generating material (3) flow. The cooling section (13) is hollow to provide a chamber for aerosol accumulation, yet is rigid enough to withstand axial compressive forces and bending moments that may occur during manufacturing and while the article (1') is in use. The cooling section (13) provides a physical separation between the rod of the aerosol generating material (3) and the downstream portions of the mouthpiece (2).

[0119] Preferably, the internal volume of the cooling section (13) is greater than 130 mm³. It has been found that providing a cavity of at least this volume enables the formation of an improved aerosol. This cavity size provides sufficient space within the mouthpiece (2) for heated volatile components to be cooled, thereby allowing the aerosol generating material (3) to be exposed to higher temperatures than would otherwise be possible, because such temperatures could result in an aerosol that is too warm. More preferably, the mouthpiece (2) includes a cavity having an internal volume greater than 170 mm³, and even more preferably, a cavity having an internal volume greater than 200 mm³, enabling further improvement of the aerosol. In some examples, the internal cavity has a volume of about 130 mm³ to about 700 mm³, preferably about 160 mm³ to about 700 mm³. For example, the internal cavity can have a volume of about 170 mm³ to about 300 mm³.

[0120] In some embodiments, the length of the cooling section (13) may be about 10 mm to about 50 mm. In some embodiments, the length of the cooling section (13) may be about 12 mm to about 40 mm, or about 15 mm to about 35 mm. In some preferred embodiments, the length of the cooling section (13) is about 15 mm to about 35 mm, more preferably about 20 mm to about 30 mm, even more preferably about 23 mm to about 27 mm, most preferably about 25 mm.

[0121] In some embodiments, the cooling section (13) is formed by a plurality of paper layers wound in parallel with butt-jointed cores to form a hollow tube. In this example, the first and second paper layers are provided as a double-ply tube, but in other examples, three, four or more paper layers may be used to form three, four or more double-ply tubes. Spiral-wound paper layers, corrugated tubes, papier-mâché type process ( Tubes formed using a type process, molded or extruded plastic tubes, or other configurations such as similar ones may be used.

[0122] In some embodiments, the cooling section (13) preferably has a wall thickness of at least about 50 μm to about 1 mm, preferably 100 μm to 500 μm, more preferably 100 μm to 150 μm. In this example, the cooling section (13) has a wall thickness of about 150 μm. The “wall thickness” of the cooling section corresponds to the thickness of the wall of the hollow tube in the radial direction, which does not include any surrounding material into which the hollow tube may be embedded. The wall thickness of the cooling section (13) can be measured, for example, using a caliper.

[0123] In the illustrated embodiment, the cooling section (13) and the mouthpiece body (14) are connected by a bonding wrapping material (11).

[0124] The article (1') is provided with perforations (12) of first and second parallel rows passing through a tipping material (5), a bonding wrapping material (11), and a cooling section (13), thereby providing airflow from the cooling section (13) into the mouthpiece (2). In other embodiments, airflow may be additionally or alternatively provided into the mouthpiece (2) at other locations.

[0125] Generally, the holes (12) in the articles disclosed in this specification can be formed as laser holes.

[0126] In the illustrated embodiment, the mouthpiece body (14) is a filter. However, it should be recognized that in other examples, the mouthpiece body (14) may be provided without substantially filtering the inhaled material of the article.

[0127] The mouthpiece body (14) is formed from a fibrous material in the illustrated embodiment. In this example, the mouthpiece body (14) is formed from a sheet material. In this example, the sheet material is paper. The sheet material can be folded to form the mouthpiece body (14). The mouthpiece body (14) can be formed from a continuous web of sheet material. In this example, the sheet material is gathered to form the body (14) in a manner similar to a 'crepe filter'.

[0128] In this example, the tipping material (5) is wrapped over the entire length of the mouthpiece (2) and a portion of the aerosol generating part (17). In this example, the tipping material (5) has an adhesive on its inner surface to connect the mouthpiece (2) and the aerosol generating part (17). In this example, the tipping material (5) extends 5 mm over the aerosol generating part (17), but alternatively, it may extend 3 mm to 15 mm, or 4 mm to 6 mm, over the aerosol generating part (17) to provide a strong attachment between the mouthpiece (2) and the aerosol generating part (17).

[0129] The pressure drop or difference across the mouthpiece (also referred to as suction resistance), for example, the pressure drop or difference across a portion of the article (1') downstream of the aerosol generating material (3), is preferably less than about 40 mmH2O. These pressure drops have been found to allow sufficient aerosol containing desirable compounds, such as flavor compounds, to pass through the mouthpiece (2) to the consumer. More preferably, the pressure drop across the mouthpiece (2) is less than about 32 mmH2O. These values ​​allow the mouthpiece (2) to decelerate the aerosol so that the aerosol passing through the mouthpiece (2) has time to decrease in temperature before reaching the downstream end of the mouthpiece (2).

[0130] The article (1') may have a ventilation level of 50% to 80%, for example 65% to 75%, of the aerosol aspirated through the article. Ventilation at these levels helps to slow down the flow of the aerosol aspirated through the mouthpiece (2), allowing the aerosol to be sufficiently cooled before reaching the downstream end of the mouthpiece (2). Ventilation is provided directly into the mouthpiece (2) of the article (1). In the embodiment illustrated in FIG. 2, ventilation is also provided into the hollow tubular element (13), which has been found to be particularly beneficial in assisting the aerosol generation process. Ventilation is provided at positions 17.925 mm and 18.625 mm, respectively, from the downstream end of the mouthpiece (2), through the perforations (12) of the first and second parallel rows formed as laser perforations in this case.

[0131] The mouthpiece may include a filter material, such as a filament tow material, wrapped in a plug wrapper material. The filament tow material may include cellulose acetate fiber tow. The filament tow may also be formed using other materials used to form fibers, such as polyvinyl alcohol (PVOH), polylactic acid (PLA), polycaprolactone (PCL), poly(1-4 butanediol succinate) (PBS), poly(butylene adipate-co-terephthalate) (PBAT), starch-based materials, cotton, aliphatic polyester materials, and polysaccharide polymers or combinations thereof. If the material is cellulose acetate tow, the filament tow may be plasticized with a plasticizer suitable for tow, such as triacetin, or the tow may be non-plasticized. The tow may have any suitable specifications, such as fibers having different cross-sections like a 'Y' shape or an 'X' shape, filament denier values ​​of 2.5 to 15 denier per filament, for example 8.0 to 11.0 denier per filament, and total denier values ​​of 5,000 to 50,000, for example 10,000 to 40,000.

[0132] An embodiment of Fig. 3

[0133] FIG. 3 illustrates an additional article (1'') for use in an aerosol delivery system.

[0134] Article (1'') is substantially identical to Articles (1) and (1') and includes a similar aerosol generating section (17) comprising a rod of a similar aerosol generating material (3) wrapped in a similar wrapper (10), but additionally includes a component (4) at the distal end. The mouthpiece (2) of Article (1'') includes a filter section (14) and a cooling section (13) as described in relation to Article (1'), but Article (1'') additionally includes an additional section (15) at the mouth end. Features having similar reference numerals are as described in relation to Article (1) and / or (1'). The mouthpiece (2) and / or component (4) shown in FIG. 2 and described herein may be used separately or together with Article (1) shown in FIG. 1a and with other embodiments, as will be apparent to those skilled in the art.

[0135] The article (1'') may be used with a non-combustible aerosol providing device, such as the device shown in FIGS. 4 through 8, to form a non-combustible aerosol providing system. The article (1'') includes an aerosol generating part (17) as defined in relation to the embodiment shown in FIG. 1a. The aerosol generating part includes a load of an aerosol generating material (3) wrapped in a wrapper (10).

[0136] The article (1'') further includes a component (4) at the upstream end of the article. The component (4) includes a body of material (8) wrapped in a component wrapper (6). The component (4) is connected to a rod of aerosol-generating material (3) by a connecting wrapper (16).

[0137] The connecting wrapper (16) extends along at least a portion of the length of the aerosol generating portion (17) of the article. This double-wrapped load of aerosol generating material has the advantages of improved stiffness and / or rigidity, which allows a load of lower density aerosol generating material and / or a smaller amount of aerosol generating material to be used in the article. However, the inventors have found that a disadvantage of using the double wrapping layer is that it can insulate the aerosol generating material and increase the delay in the aerosol generating portion (17) of the article reaching the aerosol generating temperature. The use of a wrapper comprising a plant material containing an active substance to wrap the aerosol generating material has been found to be particularly advantageous in this arrangement.

[0138] In the illustrated embodiment, the connecting wrapper (16) wraps substantially the entire length of the rod of the aerosol generating material (3), and thus the rod of the aerosol generating material is wrapped by two wrappers substantially along its entire length.

[0139] As described in this specification, by using a wrapper (10) containing a plant material containing an active substance around a load of aerosol generating material (3), the inventors have discovered that the level of the active substance provided to the user during the first few seconds (or puffs) of use can be increased. The wrapper containing a plant material containing an active substance can be used as a wrapper (10) of a load of aerosol generating material (3) and / or as a connecting wrapper (16).

[0140] Preferably, both the wrapper (10) and the connecting wrapper (16) of the aerosol generating material (3) contain a plant material containing an active substance.

[0141] Accordingly, when used, when the article (1'') is inserted into a non-combustible aerosol providing device such as that shown in FIGS. 4 through 8, the wrappers (10, 16) heat up faster than the aerosol generating material (3). Wrappers or wrappers containing a plant material containing an active substance provide the active substance to the user before the aerosol generating material.

[0142] In the embodiment illustrated in FIG. 3, the aerosol generating material (3) comprises tobacco material, and both the wrapper (10) and the connecting wrapper (16) comprise reconstituted tobacco containing nicotine. Thus, in the illustrated embodiment, when the article (1'') is used in a non-combustible aerosol providing device such as the device illustrated in FIG. 4 through 8, during the first few seconds (or puffs), an active substance containing nicotine is provided to the user from the two wrappers, which are heated to an aerosol generating temperature before the aerosol generating material. Subsequently, after a short delay in which the aerosol generating material containing tobacco material inside the article is heated to an aerosol generating temperature, this material becomes the primary source of the active substance provided to the user.

[0143] In the illustrated embodiment, the wrapper (10) comprises a plant material containing an active substance and may be a wrapper as discussed and defined in relation to the embodiment of FIG. 1a.

[0144] In the illustrated embodiment, the binding wrapper (16) may also include a plant material containing an active substance and may be a wrapper as defined in relation to the embodiment of FIG. 1a.

[0145] In some alternative embodiments, the connecting wrapper (16) may be replaced with a shorter connecting wrapper that wraps the component (4) and extends only along a portion of the length of the rod of the aerosol generating material (3). For example, the connecting wrapper (16) may extend about 3 mm to about 10 mm, for example, about 5 mm, over the rod of the aerosol generating material. In these embodiments, the wrapper (10) of the rod of the aerosol generating material (3) comprises a plant material containing an active substance. The connecting wrapper (16) may also be a wrapper comprising a plant material containing an active substance.

[0146] The aerosol generating material may be as defined in relation to the embodiment of FIG. 1a. In the illustrated embodiment, the aerosol generating material (3) comprises tobacco. In the illustrated embodiment, the tobacco material comprises a blend comprising tobacco laminar. In other examples, the aerosol generating material may be composed of or include a non-tobacco plant material comprising an active material.

[0147] Generally, in all disclosed articles, it is preferable that the aerosol generating material be selected in combination with the wrapper to provide the user with the desired amount and combination of materials from the wrapper and the aerosol generating material when the article is used.

[0148] Distal end component

[0149] The embodiment illustrated in FIG. 3 includes a component (4) at the upstream end of the article (1'').

[0150] The presence of a component (4) at the upstream end of the article can provide several advantages. For example, by preventing the aerosol-generating material from falling off the upstream end of the article, the stability of the article during use can be improved. If the component (4) comprises a body of material having a suction resistance of about 5% to 25% of the article's suction resistance, this can also result in greater consistency of suction resistance between articles, because the contribution of the load of the aerosol-generating material (3) to the article's total suction resistance is relatively smaller. Advantageously, the relatively high suction resistance of the component (4) can make the article's total suction resistance less sensitive to fluctuations in the suction resistance of the load of the aerosol-generating material.

[0151] The component (4) comprises a body of material (8) wrapped in a component wrapper (9). The component wrapper (9) may be a wrapper as defined above in relation to the wrapper (10) of an aerosol generating material, which comprises a plant material containing an active substance. Thus, the component wrapper (9) may comprise a plant material containing an active substance, which may comprise the same plant material and / or active substance as the wrapper (10) of the rod of the aerosol generating material (3). The component wrapper (9) may comprise a material different from the wrapper (10) of the rod of the aerosol generating material (3), but may comprise the same plant material and / or active substance. In some embodiments, the component wrapper (9) may comprise a different plant material and / or active substance.

[0152] Alternatively, the wrapper (9) may have a different composition. For example, the component wrapper (9) may be foil-backed paper, metal foil, or paper plug wrap. Advantageously, providing an article in which the component (4) at the upstream end of the article is wrapped by a non-combustible material such as metal foil can prevent a user from setting the article on fire in the manner of a conventional cigarette when the article is not intended for such use.

[0153] The outer circumference of the wrapper (9) of the component (4) is substantially the same as the outer circumference of the rod of the aerosol generating material (3), so that a smooth transition is made between these components.

[0154] The component (4) is connected to a load of aerosol-generating material (3) using a connecting wrapper (16). Suitably, the connecting wrapper (16) may have a tensile strength of at least 2.5 kgf / 15mm, e.g., at least 3 kgf / 15mm, or at least 3.5 kgf / 15mm. The tensile strength of the connecting wrapper (16) may be determined according to test method T 494.

[0155] The connecting wrapper (16) may be a wrapper as defined above in relation to the wrapper (10) of the aerosol generating material, which includes a plant material containing an active substance. Thus, the connecting wrapper (16) may include a plant material containing an active substance, which may include the same plant material and / or active substance as the wrapper (10) of the rod of the aerosol generating material (3). The connecting wrapper (16) may include a material different from the wrapper (10) of the rod of the aerosol generating material (3), but may include the same plant material and / or active substance. In some embodiments, the connecting wrapper (16) may include a different plant material and / or active substance.

[0156] The connecting wrapper (16) and the component wrapper (9) may both include a plant material containing an active substance. The connecting wrapper (16) and the component wrapper (9) may both include the same plant material containing the same active substance, or they may include different plant materials and / or different active substances. The connecting wrapper (16) and the component wrapper (9) may include the same plant material and / or active substance as the wrapper (10) of the rod of the aerosol generating material (3). The connecting wrapper (16) and the component wrapper (9) may include a material different from the wrapper (10) of the rod of the aerosol generating material (3), but may include the same plant material and / or active substance as the wrapper (10). In some embodiments, the connecting wrapper (16) and the component wrapper (9) may include a plant material and / or active substance different from the wrapper (10) of the rod of the aerosol generating material (3).

[0157] In some embodiments, the connecting wrapper (16) has a permeability of at least 3 Coresta units. In some examples, the connecting wrapper (16) has a permeability of at least 5 Coresta units, at least 10 Coresta units, or at least 20 Coresta units. In some examples, this permeability is an inherent characteristic of the connecting wrapper (16). In other examples, perforations may be provided in the connecting wrapper (16) to increase material permeability. In some examples, the combined permeability with any intermediate adhesive layer of the load wrapper (10) and the connecting wrapper (16) is at least 25 Coresta units, or at least 30 Coresta units, or at least 50 Coresta units. The combined permeability with any intermediate adhesive layer of the load wrapper (10) and the connecting wrapper (16) can be determined by disassembling the article to separate the wrapping materials from the load of the aerosol-generating material and measuring the total permeability through the wrapping materials surrounding the load of the aerosol-generating material, namely the load wrapper (10), the connecting wrapper (16), and any intermediate adhesive layer, in accordance with ISO 2965:2019.

[0158] The average density of the body (8) may be about 0.1 to about 0.25 mg / mm³. In this example, the density of the body of the material (8) is about 0.19 mg / mm³. In some embodiments, the body (8) has a density of at least 0.1 mg / mm³, 0.12 mg / mm³, or 0.15 mg / mm³. The density of the body of the material may be measured by separating the body from the article and surrounding plug wrappers and / or tipping paper, removing the embedded objects, and including any additives added to the body of the material (8). The density may be calculated as a bulk density based on the weight of the material (8), any additives added to the material (8), and the total volume occupied by the material (8). For example, the total volume of the body of the material (8) is measured inside the component wrapper (6).

[0159] The body of the material (8) may comprise sheet material, such as a plurality of sheet material portions. The portions of the material may be strips of sheet material. In other examples, the portions of the material may comprise sheet material that has not been cut into strips but has been collected to form a body in a manner similar to a 'crepe filter'.

[0160] The sheet material may include cellulose materials, such as, for example, paper sheets, sheets of tobacco materials, sheets of non-tobacco plant materials, or a combination thereof. The material (8) may include low porosity paper.

[0161] The sheet material may include a plant material containing an active substance, which may or may not be the same material as the wrapper (10) of the rod of the aerosol generating material (3). The sheet material may be a different material from the wrapper (10) of the rod of the aerosol generating material (3), but may include the same plant material and / or active substance. In some embodiments, the sheet material may include a different plant material and / or active substance.

[0162] In other embodiments, the material (8) may include a foil or foil backing paper, an aerosol generating film, or a support, for example, an aerosol generating film laminated on a paper material.

[0163] The sheet material is approximately 20 g / m² 2 Up to about 80 g / m² 2 , or about 30 g / m² 2 Up to about 50 g / m² 2 , or about 36 g / m² 2 Up to about 45 g / m² 2 , or about 55 g / m² 2 Up to about 75 g / m² 2It may have a basis weight. Alternatively, or additionally, the sheet material of the plurality of strips may have a non-crimping thickness of about 50 μm to about 500 μm, about 50 μm to about 350 μm, about 60 μm to about 300 μm, or about 60 μm to about 160 μm.

[0164] In some embodiments, the body of the material is not formed from a sheet material, but from another fibrous material such as cotton.

[0165] In some embodiments, an aerosol modifying agent or an aerosol forming agent may be added to the material forming the body of the material (8). In some embodiments, the body of the material (8) comprises an aerosol-forming film containing lactic acid, as described, for example, in WO 2021 / 105449.

[0166] In some embodiments, the body (8) contains an aerosol-forming agent in an amount of 10% to 30% by weight. In other examples, the body of the material (8) contains an aerosol-forming agent in an amount of less than 5% by weight.

[0167] In some embodiments, the body of the material (8) comprises a combustion retardant material, for example, a combustion retardant salt and an aerosol-generating film as described in WO 2020 / 183163 A1.

[0168] In some embodiments, the component (4) has a length of about 6 mm. In alternative embodiments, the component (4) may have any length ranging from about 3 mm to about 15 mm, preferably from about 4 mm to about 6 mm.

[0169] The body of the material (8) may have a suction resistance of 1 mmH2O to 30 mmH2O, for example, 5 mmH2O to 25 mmH2O, or 10 mmH2O to 20 mmH2O. Preferably, the body (8) has a suction resistance of 0 mmH2O to 20 mmH2O. This suction resistance may be 1% to 30% of the total suction resistance of the article, for example, 5% to 25%, or 10% to 20%. Advantageously, providing a component (4) having a suction resistance of 5% to 25% of the total suction resistance of the article at an upstream position of the load of the aerosol-generating material (3) reduces the relative contribution of the load of the aerosol-generating material to the total suction resistance of the article. Consequently, the total inhalation resistance of the article (1'') is less sensitive to variations in the inhalation resistance of the aerosol-generating material load, which may occur due to the organic properties of the tobacco material, and it is also possible to provide a higher level of airflow into the aerosol-generating material load while maintaining the total inhalation resistance along the entire length of the article (1') at an acceptable level. The inhalation resistance of the body (8) is measured according to the ISO standard method (ISO6565:2015). The inhalation resistance refers to 'closed inhalation resistance,' which is a state in which any airflow zones into the article or the body being measured are closed.

[0170] The body of the material (8) may have a weight of about 5 mg to about 15 mg per mm of the length of the body, or about 8 mg to about 12 mg per mm of the length of the body, or about 10 mg per mm of the length of the body.

[0171] mouthpiece

[0172] The embodiment illustrated in FIG. 3 includes a mouthpiece (2) at the mouse (i.e., downstream) end of the article (1''). The mouthpiece (2) is described in relation to the article (1') and is as illustrated in FIG. 2, but additionally includes a mouse end section (15).

[0173] In the embodiment illustrated in FIG. 3, the mouthpiece (2) includes a cooling section (13) located downstream of a load of aerosol generating material (3). The cooling section is defined as in relation to the embodiment illustrated in FIG. 2.

[0174] In this example, the cooling section (13) is in contact with the load of the aerosol generating material (3). In other examples, additional components may be provided between the load of the aerosol generating material (3) and the cooling section (13).

[0175] The mouthpiece body (14) is defined as in relation to the embodiments illustrated in FIG. 1a and FIG. 2. In the illustrated embodiments, the mouthpiece body (14) is a filter. However, it should be recognized that in other examples, the mouthpiece body (14) may be provided without substantially filtering the inhaled material of the article.

[0176] A hollow tubular element (15) is located at the mouse end of the article (1''). In this example, the hollow tubular element (15) is formed from a plurality of paper layers wound in parallel with butted seams to form a hollow tube, as described in relation to the cooling section (13). The hollow tubular element (15) may be formed according to any means described for the cooling section (13) and may have any wall thickness described in relation to the cooling section (13).

[0177] Preferably, the length of the hollow tubular element (15) is at least about 6 mm. In some preferred embodiments, the length of the hollow tubular element (15) is about 5 mm to about 20 mm, more preferably about 6 mm to about 10 mm, even more preferably about 6 mm to about 8 mm, most preferably about 6 mm, 7 mm, or about 8 mm. In this example, the hollow tubular element (15) has a length of 6 mm.

[0178] In this example, the tipping material (5) is wrapped over the entire length of the mouthpiece (2) and a portion of the aerosol generating part, and has an adhesive on its inner surface to connect the mouthpiece (2) and the rod (3). In this example, the tipping paper (5) extends 5 mm over the rod of the aerosol generating material (2), but alternatively, it may extend 3 mm to 15 mm, or 4 mm to 6 mm, over the rod (2) to provide a firm attachment between the mouthpiece (3) and the rod (2).

[0179] Pressure drop and ventilation

[0180] The disclosed articles (1, 1', 1'') have a pressure drop or difference (also referred to as suction resistance) across the mouthpiece, for example, across a portion of the article downstream of the aerosol generating material (3), of about 40 mmH2O or less. These pressure drops have been found to allow sufficient aerosol containing desirable compounds, such as flavor compounds, to pass through the mouthpiece (2) to the consumer. More preferably, the pressure drop across the mouthpiece (2) is about 32 mmH2O or less.

[0181] In some embodiments of the disclosed articles (1, 1', 1''), particularly improved aerosols are achieved by using a mouthpiece (2) having a pressure drop of less than 31 mmH2O, for example, about 29 mmH2O, about 28 mmH2O, or about 27.5 mmH2O. Alternatively, or additionally, the mouthpiece pressure drop may be at least 10 mmH2O, preferably at least 15 mmH2O, more preferably at least 20 mmH2O. In some embodiments, the mouthpiece pressure drop may be from about 15 mmH2O to 40 mmH2O. These values ​​allow the mouthpiece (2) to decelerate the aerosol so that the aerosol passing through the mouthpiece (2) has time to decrease the temperature of the aerosol before reaching the downstream end of the mouthpiece (2).

[0182] The articles disclosed herein have an aeration level of about 75% of the aerosol aspirated through the article. In alternative embodiments, the article may have an aeration level of 50% to 80%, for example, 65% to 75% of the aerosol aspirated through the article. Aeration at these levels helps to slow down the flow of the aerosol aspirated through the mouthpiece (2), allowing the aerosol to be sufficiently cooled before reaching the downstream end of the mouthpiece (2). Aeration is provided directly into the mouthpiece (2) of the article (1). In the embodiments illustrated in FIGS. 2 and 3, aeration is also provided into the hollow tubular element (13), which has been found to be particularly beneficial in assisting the aerosol generation process. Ventilation is provided at positions 17.925 mm and 18.625 mm from the downstream end of the mouthpiece (2), respectively, through the perforations (12) of the first and second parallel rows formed as laser perforations in this case.

[0183] The mouthpiece may include a filter material, such as a filament tow material, wrapped in a plug wrapper material. The filament tow material may include cellulose acetate fiber tow. The filament tow may also be formed using other materials used to form fibers, such as polyvinyl alcohol (PVOH), polylactic acid (PLA), polycaprolactone (PCL), poly(1-4 butanediol succinate) (PBS), poly(butylene adipate-co-terephthalate) (PBAT), starch-based materials, cotton, aliphatic polyester materials, and polysaccharide polymers or combinations thereof. If the material is cellulose acetate tow, the filament tow may be plasticized with a plasticizer suitable for tow, such as triacetin, or the tow may be non-plasticized. The tow may have any suitable specifications, such as fibers having different cross-sections like a 'Y' shape or an 'X' shape, filament denier values ​​of 2.5 to 15 denier per filament, for example 8.0 to 11.0 denier per filament, and total denier values ​​of 5,000 to 50,000, for example 10,000 to 40,000.

[0184] Wrappers containing plant-based materials containing active substances

[0185] The articles described in this specification include an aerosol generating unit comprising an aerosol generating material (3) wrapped in a wrapper. The wrapper comprises a plant material containing an active substance.

[0186] The inventors have surprisingly discovered that the advantage of the wrapper in the disclosed articles is that it enables the use of the article at lower temperatures than previously possible and / or allows the aerosol-generating material to be heated more slowly without reducing the level of the active substance within the aerosol. This leads to energy efficiency savings and may be advantageous, as rapid heating of the aerosol-generating material to high temperatures can cause "water flash" problems.

[0187] To maximize these potential benefits, in some embodiments, the system may be configured to heat the article to an initial first temperature at which the aerosol is released from the wrapper, and then to a second temperature higher than the first temperature at which the aerosol generating material is heated to generate the aerosol.

[0188] Generally, the wrapper of the aerosol-generating material load may be a wrapper as defined above in relation to the wrapper (10) of the embodiments shown in FIGS. 1 to 3.

[0189] The wrapper may include a thin film as defined herein. In other embodiments, the wrapper does not include a thin film.

[0190] The wrapper is not a conventional paper wrapper and is preferably composed of or does not contain wood pulp material. In some embodiments, the wrapper does not contain cellulose fibers.

[0191] Except for bonding wrappers such as tipping wrappers (5) and connecting wrappers (16), the wrapper (10) of the aerosol generating material load is preferably a single-layer wrapper.

[0192] Wrappers can generally have any porosity level. For example, a wrapper may have a porosity of 3 to 65 coresta units. Preferably, the wrapper has a porosity of 10 to 55, 15 to 50, or 20 to 47 coresta units. The use of wrappers containing vegetable materials having this level of porosity has been found to provide various advantages, particularly in terms of aerosol and flavor delivery.

[0193] It was found that, surprisingly, additional aerosol delivery benefits are provided when the wrapper has a moisture content of 5-12%. Preferably, the wrapper has a moisture content of 6-11%, or 7-10%, such as 8% or 9%.

[0194] The wrapper (10) of the aerosol generating material rod may have a tensile strength of 5 N / 15 mm to 15 N / 15 mm. In some embodiments, the tensile strength of the wrapper (10) may be 7 N / 15 mm to 14 N / 15 mm, e.g. 10 N / 15 mm to 13 N / 15 mm. Preferably, the tensile strength of the wrapper (10) may be about 12 N / 15 mm. The tensile strength of the wrapper may be determined according to test method T 494.

[0195] Preferably, the wrapper has a relatively low basis weight. In some embodiments, the wrapper (10) of the aerosol-generating material load is about 25 g / m² 2 (Grams per square meter) to about 60 g / m² 2 , approximately 30 g / m² 2 Up to 50 g / m² 2 , or about 35 g / m² 2 Up to 45 g / m 2 It may have a basis weight of about 42 g / m². Preferably, the wrapper (10) is about 42 g / m² 2 Less than, or about 40 g / m² 2 It may have a basis weight of less than 39 g / m². Preferably, the wrapper is about 39 g / m² 2 It can have a basis weight.

[0196] The wrapper may contain inorganic filler in an amount of 11.5–15.5%. Preferably, the wrapper contains inorganic filler in an amount of 12–15%, e.g., 13, 13.3, 13.5, 13.7, or 14%. Most preferably, the wrapper contains inorganic filler in an amount of 13.5%. These amounts include the amount naturally present in tobacco.

[0197] Any suitable inorganic filler may be used. Preferably, the inorganic filler is calcium carbonate.

[0198] Wrappers can be manufactured by methods known to those skilled in the art to manufacture wrappers containing plant materials such as reconstituted tobacco sheets.

[0199] plant-based materials

[0200] As used herein, the term “vegetable material” refers to any material derived from a plant, including any material derived from any part of a plant, including but not limited to leaves, bark, buds, fibers, stems, roots, seeds, flowers, fruits, pollen, husks, and / or outer skin.

[0201] Plant-based materials are materials that naturally contain or include active substances.

[0202] In some embodiments, the wrapper may be composed of or include a single plant material containing a single active substance. In some embodiments, the wrapper may be composed of or include a single plant material containing a plurality of different active substances.

[0203] In some embodiments, the wrapper may be composed of or include a combination of plant-based materials. Each of the plant-based materials may include a different active substance.

[0204] In some embodiments, the plant material may consist of or contain tobacco. The wrapper may contain 20-90% tobacco. For example, the wrapper may contain 25-80% or 30-70% tobacco.

[0205] In some embodiments, the wrapper may be composed of or contain reconstituted tobacco material. In these embodiments, the wrapper may contain at least 30% tobacco, e.g. 40-80% or 50-70% tobacco. The tobacco may be dark air-cured.

[0206] In some embodiments, the plant material may consist of or include tobacco material. The tobacco material is Nicotiana ( Nicotiana It is any material derived from plants of the genus.

[0207] In some embodiments, the plant material may be a reconstituted plant material.

[0208] In some embodiments, the plant material may consist of or include reconstituted tobacco material.

[0209] In some embodiments, the plant material may not contain tobacco material and may therefore be referred to as a "non-tobacco plant material."

[0210] In some embodiments, the plant material may consist of or include non-tobacco plant material. In some embodiments, the non-tobacco plant material may consist of or include mint, chamomile, eucalyptus, lavender, ginger, rooibos, cinnamon, star anise, cocoa, hemp, fennel, and / or clove material. In some embodiments, the non-tobacco plant material may consist of or include cannabis.

[0211] In some embodiments, the wrapper may be composed of or contain reconstituted non-tobacco plant material.

[0212] In some embodiments, the plant material may include a combination of plant materials, such as a combination of two or more, such as a combination of two, three, four, five, or six plant materials. The combination may include tobacco and / or non-tobacco plant materials.

[0213] Non-tobacco plant materials are arbitrary materials derived from any plant other than plants of the genus Nicotiana. Therefore, non-tobacco plant materials include eucalyptus, star anise, hemp, cocoa, cannabis, fennel, lemongrass, peppermint, spearmint, rooibos, chamomile, flax, ginger, ginkgo, hazelnut, hibiscus, bay leaf, licorice, matcha, mate, orange peel, papaya, rose, sage, tea such as green or black tea, thyme, cinnamon, coffee, anise seeds (anise), basil, bay leaves, cardamom, coriander, cumin, nutmeg, oregano, paprika, rosemary, saffron, cloves, lemon peel, mint, juniper, elderflower, vanilla, wintergreen, beefsteak plant, curcumin, turmeric, sandalwood, cilantro, bergamot, orange blossom, myrtle, cassis, valerian, pimento, mace, damien, marjoram, olive, lemon balm, lemon basil, chives, carbi, Includes, but is not limited to, verbena, tarragon, geranium, mulberry, ginseng, theanine, theacrine, maca, ashwagandha, damiana, guarana, chlorophyll, baobab, or any combination thereof.

[0214] Non-tobacco plant materials may be materials derived from species belonging to the Asteraceae, Fabaceae, Myrtaceae, Apiaceae, Camellia taliensis, Solanaceae, Brassicaceae, Caricaceae, Asclepiadaceae, Equisetaceae, Oleaceae, and Lamiaceae families, as well as species that are members of the tisane family. Non-tobacco plant materials include the genus Matricaria, such as chamomile; species of Pimpinella anisum, such as anise; species of Foeniculum vulgare, such as fennel; jasmine; lavender; clove; eucalyptus; It can be selected from species of Aspalathus linearis such as and rooibos.

[0215] The plant material may be an aromatic plant material. In this context, "aromatic" refers to any material having a distinctive scent. Thus, an aromatic plant material is any material that can be identified by its scent. The plant material may contain or be composed of an active substance that is a flavoring agent, and thus the plant material may be a flavoring plant material. The plant material is preferably an aromatic flavoring plant material.

[0216] In some embodiments, the plant material may contain advantageous aroma properties for use in a non-combustible aerosol delivery system. For example, the plant material may deliver an aerosol that is considered advantageous to consumers of a tobacco-based delivery system when used in a non-combustible aerosol delivery system. For example, the plant material may contain an active substance that is an active substance found in tobacco, such as nicotine or tobacco flavoring agents.

[0217] In some embodiments, the plant material may include or be composed of mint, chamomile, eucalyptus, lavender, ginger, rooibos, cinnamon, star anise, cocoa, hemp, fennel, and / or clove material.

[0218] 'Mint', 'mint ingredients', and 'mint plant ingredients' refer to Mentha of the Lamiaceae family ( MenthaIt refers to any material derived from a plant of the genus. Any plant of this genus may be referred to as a 'mint plant'. The mint botanical material may include or be composed of material from the following mint 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. The mint plant material may include material from any part of the mint plant, and preferably, the mint plant material may include or be composed of mint leaf and / or mint stem material. In terms of active substances, the mint plant material may include menthol.

[0219] 'Chamomile', 'chamomile ingredients', and 'chamomile plant ingredients' belong to the Asteraceae family, which includes various daisy-like plants ( AsteraceaeIt refers to any material derived from a plant of the genus. Any plant or tree of this genus may be referred to as a 'chamomile plant'. The chamomile plant material may include material from any part of the chamomile plant, and preferably, the chamomile plant material may include or be composed of chamomile flower material. In terms of active substances, the chamomile plant material may include, for example, apigenin, quercetin, patuletin, and / or luteolin.

[0220] 'Eucalyptus', 'eucalyptus material', and 'eucalyptus plant material' refer to eucalyptus, including various flowering trees, shrubs, or species of mallees of the Myrtaceae family. Eucalyptus It refers to any material derived from a plant of the genus. Any plant or tree of this genus may be referred to as 'eucalyptus plant' or 'eucalyptus tree'. Eucalyptus plant material may include material from any part of a eucalyptus tree, and preferably, eucalyptus plant material may include or be composed of eucalyptus leaf and / or eucalyptus stem and / or eucalyptus flower material. In terms of active substances, eucalyptus plant material may include cineole.

[0221] 'Lavender', 'lavender ingredients', and 'lavender plant ingredients' refer to labandula of the Lamiaceae family ( Lavandula It refers to any material derived from a plant of the genus. Any plant of this genus may be referred to as a 'lavender plant'. The lavender plant material may include material from any part of the lavender plant, and preferably, the lavender plant material may include or be composed of lavender flower and / or lavender bud material. In terms of active substances, the lavender plant material may include, for example, limonene, linalool, linalyl acetate, and / or camphor.

[0222] 'Ginger', 'ginger ingredients', and 'ginger plant ingredients' refer to the ginger of the Zingiberaceae family ( Zingiber It refers to any material derived from a plant of the genus ). Any plant of this genus may be referred to as a 'ginger plant'. Preferably, the ginger plant is ginger officinale ( Zingiber officinale Ginger is a flowering plant whose root or rhizome, known as ginger, is widely used as a spice. The ginger plant material may include material from any part of the ginger plant, and preferably, the ginger plant material may include or be composed of ginger root / rhizome material. In terms of active substances, the ginger plant material may include, for example, sesquiterpene hydrocarbons, gingerol, shogaol, and / or oleoresin.

[0223] 'Rooibos', 'Rooibos ingredients', and 'Rooibos plant ingredients' are Aspalatus of the Fabaceae family ( Aspalathus ) genus, especially Aspalatus linearis ( Aspalathus linearis It refers to any material derived from ). Preferably, the rooibos plant is Aspalatus linearis, which is a shrub whose leaves are widely used to make tea known as bush tea, red tea, or red bush tea. The rooibos plant material may include material from any part of the rooibos plant, and preferably, the rooibos plant material may include or be composed of rooibos leaf material. In terms of active substances, the rooibos plant material may include vitamin C and / or polyphenols including flavanols, flavones, flavanones, dehydrochalcones, aspalatin, and / or nothophagine. The rooibos plant material may additionally or alternatively include benzoic acid and / or cinnamic acid.

[0224] 'Cinnamon', 'cinnamon ingredients', and 'cinnamon plant ingredients' refer to Cinnamomum of the Lauraceae family ( Cinnamomum It refers to any material derived from a plant of the genus. Cinnamon is a spice obtained from the inner bark of various tree species of this genus, and any tree of this genus may be referred to as a 'cinnamon plant' or 'cinnamon tree'. The cinnamon plant material may include material from any part of the cinnamon plant, and preferably, the cinnamon plant material may include or be composed of cinnamon bark material. In terms of active substances, the cinnamon plant material may include, for example, cinnamaldehyde, trans-cinnamaldehyde (cin), procyanidins, and / or catechins.

[0225] 'Octagon', 'octagonal material', and 'octagonal vegetable material' are Ilysium verum ( Illicium verum It refers to any material derived from a plant of the ) species. Star anise is a spice obtained from the fruit of a plant, and star anise plant material may include or be composed of star anise fruit material. In terms of active substances, star anise plant material may include anethole.

[0226] 'Cocoa', 'cocoa ingredients', and 'cocoa vegetable ingredients' are Theobroma cacao ( Theobroma cacao It refers to any material derived from a plant of the ) species. Cocoa is obtained from the seeds of the plant. Cocoa plant material may include or be composed of cocoa seed material. In terms of active substances, cocoa plant material may include an alkaloid, which may be theobromine, also known as xantheose.

[0227] 'Hemp', 'hemp material', and 'hemp vegetable material' refer to cannabis sativa (which is specifically cultivated for industrial or medicinal uses) Cannabis sativa) refers to a plant classification of cultivated varieties. The hemp plant material may include material from any part of the hemp plant, and preferably, the hemp plant material may include or be composed of hemp seeds, leaves, and / or fiber material. In terms of active substances, the hemp plant material may include tetrahydrocannabinol (THC) and / or cannabidiol (CBD).

[0228] 'Fennel', 'fennel ingredients', and 'fennel vegetable ingredients' are Poeniculum bulgarei ( Foeniculum vulgare It refers to any material derived from a plant of the species. Fennel is a highly flavorful herb containing volatile oils that impart mixed fragrances. The fennel plant material may include material from any part of the fennel plant, and preferably, the fennel plant material may include or consist of fennel bulbs, seeds, umbels, and / or flower material. In terms of active substances, the fennel plant material may include polyphenols such as trans-anethole, estragole, fencheon, limonene, 1-octen-3-ol, and / or rosmarinic acid and / or luteolin.

[0229] 'Clove', 'clove material', and 'clove plant material' refer to Syzygium aromaticum, which can be referred to as the 'clove plant' or 'clove tree' ( Syzygium aromaticum It refers to any material derived from a plant of the species. The clove material for use in the disclosed process may be derived from the buds of the clove plant material. The clove material may include, but is not limited to, the following types of clove material: Java, Bali, Manado, and / or Manado Grade II. The use of the clove material may provide a unique flavor and sensory experience to the end user. Cloves are known to have sensory effects including aroma, spiciness, numbness, crackling, and throat-soothing characteristics. In terms of active substances, the clove plant material may contain eugenol.

[0230] In some embodiments, the plant material may include material from seed-producing plants that do not develop continuous woody tissue and are often valued for their medicinal or sensory properties.

[0231] In some embodiments, when the plant material is heated, it can produce an aerosol having a sensory experience comparable to that provided by conventional combustible products such as tobacco.

[0232] active substance

[0233] The plant material of the wrapper of an article for use with a non-combustible aerosol providing device comprises an active substance. The "active substance" may also be referred to as "active material" in this specification.

[0234] Active substances can produce physiological or sensory effects on the human body. Examples of active substances are flavorings and sensory materials. Sensory materials produce sensory sensations that can be perceived through the senses, such as cool or sour sensations.

[0235] In some embodiments, the active substance may be a physiologically active material. As used herein, "physiologically active material" refers to a material intended to achieve or enhance a physiological response. The active substance may be selected from, for example, nutraceuticals, nootropics, and psychotropic substances.

[0236] The active substance may be derived from plant materials as defined herein. For example, the active substance may be a component, derivative, or extract of a plant material.

[0237] In some embodiments, the active substance is derived from tobacco.

[0238] In some embodiments, the active substance includes nicotine. .

[0239] In some embodiments, the active substance is derived from cannabis.

[0240] In some embodiments, the active substance comprises one or more cannabinoids or terpenes.

[0241] In some embodiments, the active substance is derived from a plant material selected from mint, chamomile, eucalyptus, lavender, ginger, rooibos, cinnamon, star anise, cocoa, hemp, fennel, and / or clove. The active substance may be any one or more of those listed herein in relation to these plant materials.

[0242] In some embodiments, the active substance in the wrapper is derived from a plant material that is the same plant material used in the wrapper.

[0243] The active substance may naturally exist in plant materials. For example, the active substance may be nicotine naturally present in tobacco plant materials.

[0244] The active substance may be added to the plant material. For example, the active substance may be added to the plant material before, during, or after the production of the wrapper. The active substance may be added to the plant material by any suitable method, such as spraying, immersion, or coating.

[0245] The active substance can be a naturally occurring substance.

[0246] The active substance may be synthetic and / or chemically produced.

[0247] In some embodiments, the active substance may include nicotine, caffeine, taurine, thein, vitamins such as B6 or B12 or C, melatonin, cannabinoids, or components, derivatives, or combinations thereof.

[0248] The active material may include nicotine (optionally contained in tobacco or tobacco derivatives) or one or more other non-olfactory physiologically active materials. As used herein, the term “non-olfactory physiologically active material” refers to a material included in an aerosol-generating material to achieve a physiological response other than olfactory perception.

[0249] In some embodiments, the active substance may include a nicotine salt. The nicotine salt may be nicotine benzoate, nicotine levulinate, nicotine citrate, nicotine lactate, or a combination thereof.

[0250] In some embodiments, the active material may include nicotine. Nicotine may be included in the material in a final amount of about 0.1% to about 5% based on the weight of the material. For example, the total amount of nicotine in the material may be about 0.2% to about 4%, about 0.5% to about 3%, such as about 1% or about 2% based on the weight of the material.

[0251] Nicotine content can be determined by any suitable method, such as using gas chromatography, or by using any other method used in the industry to quantify the levels of secondary alkaloids in tobacco.

[0252] In some embodiments, including some embodiments in which the active substance comprises nicotine, the material may comprise an acid. The inclusion of the acid has been found to improve the release of other substances, such as nicotine, from the material. In some embodiments, the material comprises the acid in an amount (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 moles of nicotine in the material. In some embodiments, the material contains acid in an amount (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% with respect to the moles of nicotine in the material.

[0253] 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. The term lactic acid is synonymous with the term 2-hydroxypropanoic acid and includes both D and L enantiomers or a mixture 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-oxopentanic acid.

[0254] In some embodiments, the active substance is a legally permitted recreational drug.

[0255] The active substance may be CBD or a derivative thereof.

[0256] The active substance may be a flavoring agent, but preferably, the active substance is not a flavoring agent. As used herein, the terms “flavor” and “flavoring agent” refer to materials that may be used to produce a desired taste or aroma in products for adult consumers, where permitted by local regulations.

[0257] The active substances are extracts (e.g., licorice, hydrangea, Japanese white magnolia leaves, chamomile, fenugreek, clove, menthol, Japanese mint, anise seed, cinnamon, herbs, wintergreen, cherry, berry, peach, apple, Drambuie, bourbon, Scotch, whiskey, spearmint, peppermint, lavender, cardamom, celery, cascarilla, nutmeg, sandalwood, bergamot, geranium, honey essence, rose oil, vanilla, lemon oil, orange oil, cassia, caraway, cognac, jasmine, ylang-ylang, sage, fennel, pimento, ginger, star anise, coriander, coffee, or menta). Mentha It may consist of or include one or a combination thereof of mint oil from any species of the genus, 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, cyclamates, lactose, sucrose, glucose, fructose, sorbitol, or mannitol), and other additives such as charcoal, chlorophyll, minerals, plant materials, or breath fresheners. These may be imitation, synthetic, or natural ingredients or blends thereof. They may be in any suitable form, e.g., oil, liquid, or powder.

[0258] Aerosol generating materials

[0259] The articles described in this specification include an aerosol generating unit comprising an aerosol generating material (3) wrapped in a wrapper comprising a plant material containing an active substance.

[0260] An “aerosol generating material” comprising an “aerosolizable material” is a material capable of generating an aerosol when heated, irradiated, or supplied with energy in any other way. The aerosol generating material may be in the form of a solid, liquid, or semi-solid (e.g., a gel) that may or may not contain active substances and / or flavoring agents as defined herein, for example.

[0261] Preferably, the aerosol generating material (3) is provided as a cylindrical rod of the aerosol generating material. Regardless of the shape of the aerosol generating material, it 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 in the range of about 30 mm to 40 mm.

[0262] The volume of the provided aerosol generating material (3) may vary from about 200 mm³ to about 4300 mm³, preferably about 500 mm³ to 1500 mm³, more preferably about 1000 mm³ to about 1300 mm³. Providing aerosol generating material of these volumes, for example, about 1000 mm³ to about 1300 mm³, has been shown to be advantageous in achieving a superior aerosol with higher visibility and sensory performance compared to volumes selected from the lower limit of the range.

[0263] The mass of the provided 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, more preferably about 250 mg to 360 mg. In some embodiments, the aerosol generating material comprises about 250 mg to about 380 mg, about 300 mg to about 360 mg, about 320 mg to about 350 mg, or about 330 mg to about 350 mg. It has been advantageously found that providing a higher mass of aerosol generating material results in improved sensory performance compared to an aerosol generated from a lower mass.

[0264] The aerosol generating material may be composed of or contain tobacco materials as described herein, which contain tobacco components. The tobacco components may contain reconstituted tobacco. The tobacco components may also contain leaf tobacco, extruded tobacco, and / or bandcast tobacco.

[0265] The aerosol-generating material may consist of or contain tobacco material. The tobacco material may be provided in the form of cut rag tobacco. The cut rag tobacco may have a cut width of at least 15 cuts per inch (approx. 5.9 cuts / cm, corresponding to a cut width of approximately 1.7 mm). Preferably, the cut rag tobacco has a cut width of at least 18 cuts per inch (approx. 7.1 cuts / cm, corresponding to a cut width of approximately 1.4 mm), and more preferably, at least 20 cuts per inch (approx. 7.9 cuts / cm, corresponding to a cut width of approximately 1.27 mm). In one example, the cut rag tobacco has a cut width of 22 cuts per inch (approx. 8.7 cuts / cm, corresponding to a cut width of approximately 1.15 mm). Preferably, the cut tobacco has a cut width of 40 cuts per inch (about 15.7 cuts / cm, corresponding to a cut width of about 0.64 mm) or less. Cut widths of 0.5 mm to 2.0 mm, for example, 0.6 mm to 1.5 mm, or 0.6 mm to 1.7 mm have been found to result in a desirable tobacco material, particularly in terms of the surface area to volume ratio when heated, and the overall density and pressure drop of the substrate (3). The cut tobacco may be formed from a mixture of forms of tobacco materials, for example, a mixture of one or more of paper reconstituted tobacco, leaf tobacco, extruded tobacco, and bandcast tobacco. Preferably, the tobacco material comprises paper reconstituted tobacco or a mixture of paper reconstituted tobacco and leaf tobacco.

[0266] In some embodiments, the tobacco material may comprise a blend containing laminar. In some embodiments, the blend may comprise more than 50% laminar, such as more than 60%, more than 70%, more than 80%, or more than 90% laminar. In some embodiments, the blend comprises more than 95% laminar, and in some embodiments, the blend essentially comprises 100% laminar.

[0267] In embodiments where the aerosol generating material comprises a tobacco material, the tobacco material may contain a filler component. The filler component is generally a non-tobacco component, that is, a component that does not contain components derived from tobacco. 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, or magnesium carbonate. The filler component may also be a non-tobacco cast material or a non-tobacco extruded material. The filler component may be present in an amount of 0 to 20% by weight of the tobacco material, or in an amount of 1 to 10% by weight of the composition. In some embodiments, the filler component is not present.

[0268] In some embodiments, leaf tobacco may be present in the aerosol-generating material. For example, in some embodiments, leaf tobacco may be present with paper-reconstituted tobacco, bandcast-reconstituted tobacco, or a combination of other forms of tobacco such as bandcast-reconstituted tobacco and tobacco granules.

[0269] In some embodiments, the aerosol generating material may include a reconstituted tobacco material.

[0270] The aerosol generating material (3) may include a reconstituted tobacco material having a density of less than about 700 milligrams per cubic centimeter (mg / cc). These tobacco materials have been found to be particularly effective in providing an aerosol generating material that can be heated rapidly to release an aerosol compared to materials with higher densities. For example, the inventors tested the properties of various aerosol generating materials, such as bandcast reconstituted tobacco materials and paper reconstituted tobacco materials, when heated. For each given aerosol generating material, it was confirmed that there exists a specific zero heat flow temperature at which, while heat is applied to the material, the net heat flow becomes endothermic, meaning that more heat enters the material than leaves it, and at a temperature higher than this, the net heat flow becomes exothermic, meaning more heat leaves the material than enters it. Materials with a density of less than 700 mg / cc had a lower zero heat flow temperature. Since a significant portion of the heat flow from the material is achieved through the formation of aerosols, having a lower zero heat flow temperature has a beneficial effect on the time required to first release aerosols from the aerosol-generating material. For example, aerosol-generating materials with a density of less than 700 mg / cc were found to have a zero heat flow temperature of less than 164°C, which is compared to materials with a density greater than 700 mg / cc that have a zero heat flow temperature greater than 164°C.

[0271] The density of the aerosol-generating material also affects the rate at which heat is conducted through the material, and lower densities, for example, less than 700 mg / cc, conduct heat more slowly through the material, enabling a more sustained release of the aerosol.

[0272] The aerosol generating material (3) may include a reconstituted tobacco material having a density of about 700 mg / cc or less, for example, a paper reconstituted tobacco material. More preferably, the aerosol generating material (3) includes a reconstituted tobacco material having a density of about 600 mg / cc or less. Alternatively, or additionally, the aerosol generating material (3) preferably includes a reconstituted tobacco material having a density of at least 350 mg / cc, which is considered to enable a sufficient amount of heat conduction through the material.

[0273] The paper-reconstituted tobacco may be present in the aerosol-generating material described herein in an amount of 10% to 100% by weight of the aerosol-generating material. Preferably, the aerosol-generating material comprises the reconstituted tobacco material in an amount of about 70% to about 90% by weight of the aerosol-generating material. In embodiments, the paper-reconstituted tobacco is present in an amount of 10% to 80%, or 20% to 70% by weight of the aerosol-generating material. In additional embodiments, the aerosol-generating material is composed of the paper-reconstituted tobacco as an essential component or is composed of the paper-reconstituted tobacco.

[0274] Reconstituted paper tobacco refers to a tobacco material formed by a process in which a tobacco feedstock is extracted with a solvent to obtain a residue containing extracts of soluble substances and fibrous material, and then the extract (typically after concentration and optionally after further processing) is recombined with the fibrous material from the residue (typically after purification of the fibrous material and optionally with the addition of some non-tobacco fibers) by depositing the extract onto the fibrous material. The recombination process is similar to the paper-making process.

[0275] Reconstructed paper tobacco may be any type of reconstructed paper tobacco known in the art. In certain embodiments, reconstructed paper tobacco is made from a feedstock comprising one or more of tobacco strips, tobacco stems, and whole tobacco leaves. In additional embodiments, reconstructed paper tobacco is made from a feedstock consisting of tobacco strips and / or whole tobacco leaves, and tobacco stems. However, in other embodiments, scraps, fines, and winnowing may be used alternatively or additionally in the feedstock.

[0276] Paper-reconstituted cigarettes for use in the aerosol-generating materials described in this specification may be manufactured by methods known to those skilled in the art for manufacturing paper-reconstituted cigarettes.

[0277] The aerosol generating material may be composed of or include plant-based materials as defined in this specification.

[0278] The aerosol generating material may include one or more active substances and / or flavors, one or more aerosol forming agent materials, and optionally one or more other functional materials.

[0279] The aerosol-generating material may include a binder, such as a gelling agent, and an aerosol-forming agent. Optionally, a material to be delivered and / or a filler may also be present. Optionally, a solvent, such as water, may also be present, and one or more other components of the aerosol-generating material may or may not be soluble in the solvent. In some embodiments, the aerosol-generating material substantially does not contain plant material. In particular, in some embodiments, the aerosol-generating material substantially does not contain tobacco.

[0280] The aerosol generating material may be in the form of an aerosol generating film or may comprise such a film. The aerosol generating film may comprise a binder, such as a gelling agent, and an aerosol forming agent. Optionally, a material to be delivered and / or a filler may also be present. The aerosol generating film may not substantially contain plant material. In particular, in some embodiments, the aerosol generating material does not substantially contain tobacco.

[0281] The aerosol-generating film may have a thickness of about 0.015 mm to about 1 mm. For example, the thickness may be in the range of about 0.05 mm, 0.1 mm, or 0.15 mm to about 0.5 mm or 0.3 mm.

[0282] The aerosol generating material may comprise more than one film, and the thickness described herein may refer to the total thickness of these films.

[0283] The aerosol-generating film may be continuous. For example, the film may comprise a continuous sheet of material or may be a continuous sheet. The sheet may be in the form of a wrapper, may be collected to form a collected sheet, or may be shredded to form a shredded sheet. The shredded sheet may comprise one or more strands or strips of the aerosol-generating material.

[0284] The aerosol-generating film may be discontinuous. For example, the aerosol-generating film may comprise one or more individual parts or regions of the aerosol-generating material, such as dots, stripes, or lines, which can be supported on a support. In these embodiments, the support may be planar or non-planar.

[0285] An aerosol-generating film can be formed by combining a binder, such as a gelling agent, with a solvent, such as water, an aerosol-forming agent, and one or more other components, such as one or more substances to be delivered, to form a slurry, and then heating the slurry to volatilize at least a portion of the solvent to form an aerosol-generating film.

[0286] The slurry can be heated to remove at least about 60 wt%, 70 wt%, 80 wt%, 85 wt%, or 90 wt% of the solvent.

[0287] The aerosol generating material may be or comprise a “thin film,” which may also be referred to as an “amorphous solid.” In some embodiments, the aerosol generating material comprises an aerosol generating film that is a thin film. The thin film may be a “monolithic solid.” The thin film may be substantially non-fibrous. In some embodiments, the thin film may be a dry gel. The thin film is a solid material that may contain some fluid, such as a liquid, within it. In some embodiments, the thin film may comprise, for example, about 50 wt%, 60 wt%, or 70 wt% of solid material to about 90 wt%, 95 wt%, or 100 wt% of solid material.

[0288] Aerosol-generating materials are heated upon use to produce inhalable aerosols or vapors. The film may contain volatile components such as nicotine and nicotine derivatives, flavorings, and aerosol-generating materials. These volatile substances within the film volatilize and are inhaled upon use; the provision of the film enables the composition of the aerosol or vapor to be altered or enhanced.

[0289] In some cases, the thin film may have a thickness of about 0.015 mm to about 1.0 mm. Suitably, the thickness may be in the range of about 0.05 mm, 0.1 mm, or 0.15 mm to about 0.5 mm or 0.3 mm. The inventors have found that a material having a thickness of 0.2 mm is particularly suitable. The thin film may comprise more than one layer, and the thickness described herein refers to the total thickness of these layers.

[0290] Aerosol-generating materials containing thin films have any suitable area density, e.g., 30 g / m² 2 Up to 120 g / m² 2 It may have. In some embodiments, the aerosol-generating material has about 30 to 70 g / m². 2 , or about 40 to 60 g / m² 2 It may have an area density of about 80 to 120 g / m². In some embodiments, the thin film is about 80 to 120 g / m² 2 , or about 70 to 110 g / m² 2 , or particularly about 90 to 110 g / m² 2 It can have an area density of

[0291] In some examples, the sheet-type thin film may have a tensile strength of about 200 N / m to about 900 N / m. In some examples, for instance, when the thin film does not contain a filler, the thin film may have a tensile strength of 200 N / m to 400 N / m, or 200 N / m to 300 N / m, or about 250 N / m. In some examples, for instance, when the thin film contains a filler, the thin film may have a tensile strength of 600 N / m to 900 N / m, or 700 N / m to 900 N / m, or about 800 N / m.

[0292] In some cases, the thin film may contain 1-60 wt% of a gelling agent calculated on a dry weight basis.

[0293] Suitably, the thin film may contain about 1 wt%, 5 wt%, 10 wt%, 15 wt%, 20 wt%, or 25 wt% to about 60 wt%, 50 wt%, 45 wt%, 40 wt%, 35 wt%, 30 wt%, or 27 wt% of a gelling agent (all calculated on a dry weight basis). For example, the thin film may contain 1-50 wt%, 5-40 wt%, 10-30 wt%, or 15-27 wt% of a gelling agent.

[0294] In some embodiments, the gelling agent comprises a hydrocolloid. In some embodiments, the gelling agent comprises one or more compounds selected from the group comprising alginates, pectins, starches (and derivatives), celluloses (and derivatives), gums, silica or silicon compounds, clays, polyvinyl alcohols, and combinations thereof. For example, in some embodiments, the gelling agent comprises one or more of alginates, pectins, hydroxyethyl cellulose, hydroxypropyl cellulose, carboxymethylcellulose, pullulan, xanthan gum, guar gum, carrageenan, agarose, acacia gum, fumed silica, PDMS, sodium silicate, kaolin, and polyvinyl alcohol. In some cases, the gelling agent comprises alginates and / or pectins and may be combined with a coagulant (e.g., a calcium source) during the formation of the thin film. In some cases, the thin film may comprise calcium-crosslinked alginates and / or calcium-crosslinked pectins.

[0295] In some embodiments, the gelling agent comprises alginate, which is present in the film in an amount of 10 to 30 wt% calculated based on the dry weight of the film. In some embodiments, alginate is the only gelling agent present in the film. In other embodiments, the gelling agent comprises alginate and at least one additional gelling agent, such as pectin.

[0296] In some embodiments, the thin film may include a gelling agent comprising carrageenan.

[0297] Suitably, the film may comprise about 5 wt%, 10 wt%, 15 wt%, or 20 wt% to about 80 wt%, 70 wt%, 60 wt%, 55 wt%, 50 wt%, 45 wt%, 40 wt%, or 35 wt% of an aerosol-forming material (all calculated on a dry weight basis). The aerosol-forming material may act as a plasticizer. For example, the film may comprise 5-60 wt%, 10-50 wt%, or 20-40 wt% of an aerosol-forming material. In some cases, the aerosol-forming material comprises one or more compounds selected from erythritol, propylene glycol, glycerol, triacetin, sorbitol, and xylitol. In some cases, the aerosol-forming material contains glycerol, is composed of glycerol as an essential element, or is composed of glycerol. The inventors have determined that if the plasticizer content is too high, the film may absorb water and become a material that does not provide a suitable consumption experience during use. The inventors have determined that if the plasticizer content is too low, the film may become brittle and easily broken. The plasticizer content specified herein provides film flexibility that allows the film sheet to be wound onto a bobbin, which is useful for the manufacture of aerosol-forming articles.

[0298] In some cases, the film comprises an active substance. For example, in some cases, the film additionally comprises tobacco material and / or nicotine. For example, the film may additionally comprise powdered tobacco and / or nicotine and / or tobacco extract. In some cases, the film may comprise about 1 wt%, 5 wt%, 10 wt%, 15 wt%, 20 wt%, or 25 wt% to about 70 wt%, 50 wt%, 45 wt%, or 40 wt% (calculated on a dry weight basis) of the active substance. In some cases, the thin film may contain about 1 wt%, 5 wt%, 10 wt%, 15 wt%, 20 wt%, or 25 wt% to about 70 wt%, 60 wt%, 50 wt%, 45 wt%, or 40 wt% (calculated on a dry weight basis) of tobacco material and / or nicotine.

[0299] In some cases, the film comprises one or more active substances and flavoring agents. In some cases, the film comprises one or more of nicotine, tobacco extract, and flavoring agents.

[0300] In some cases, the film contains an active substance such as a tobacco extract. In some cases, the film may contain 5-60 wt% (calculated on a dry weight basis) of tobacco extract. In some cases, the film may contain about 5 wt%, 10 wt%, 15 wt%, 20 wt%, or 25 wt% to about 55 wt%, 50 wt%, 45 wt%, or 40 wt% (calculated on a dry weight basis) of tobacco extract. For example, the film may contain 5-60 wt%, 10-55 wt%, or 25-55 wt% of tobacco extract. The tobacco extract may contain nicotine at a concentration such that the film contains 1 wt%, 1.5 wt%, 2 wt%, or 2.5 wt% to about 6 wt%, 5 wt%, 4.5 wt%, or 4 wt% of nicotine calculated on a dry weight basis. In some cases, the film may not contain nicotine other than that derived from the tobacco extract.

[0301] In some embodiments, the film does not contain tobacco material but contains nicotine. In some of these cases, the film may contain about 1 wt%, 2 wt%, 3 wt%, or 4 wt% to about 20 wt%, 15 wt%, 10 wt%, or 5 wt% (calculated on a dry weight basis) of nicotine. For example, the film may contain 1-20 wt% or 2-5 wt% of nicotine.

[0302] In some cases, the thin film may contain flavor. Suitably, the thin film may contain up to about 60 wt%, 50 wt%, 40 wt%, 30 wt%, 20 wt%, 10 wt%, or 5 wt% of flavor. In some cases, the thin film may contain at least about 0.1 wt%, 0.5 wt%, 1 wt%, 2 wt%, 5 wt%, 10 wt%, 20 wt%, or 30 wt% of flavor (all calculated on a dry weight basis). For example, the thin film may contain 0.1-60 wt%, 1-60 wt%, 5-60 wt%, 10-60 wt%, 20-50 wt%, or 30-40 wt% of flavor. In some cases, the flavor (if present) contains menthol, is composed of menthol as an essential element, or is composed of menthol. In some cases, the film does not contain flavor.

[0303] In some cases, the total content of the active substance and flavor may be at least about 0.1 wt%, 1 wt%, 5 wt%, 10 wt%, 20 wt%, 25 wt%, or 30 wt%. In some cases, the total content of the active substance (e.g., tobacco material and / or nicotine) and flavor may be about 80 wt%, 70 wt%, 60 wt%, 50 wt%, or less than 40 wt% (all calculated on a dry weight basis).

[0304] In some embodiments, the thin film is a hydrogel or includes it.

[0305] In some embodiments, the film comprises less than about 20 wt% of water calculated on a wet weight basis (WWB). In some cases, the film may comprise about 15 wt%, 12 wt%, or less than 10 wt% of water calculated on a wet weight basis. In some cases, the film may comprise at least about 1 wt%, 2 wt%, or at least about 5 wt% of water (WWB). In some cases, the film comprises about 1 wt% to about 15 wt% of water calculated on a wet weight basis, or about 5 wt% to about 15 wt% of water. Suitably, the moisture content of the film may be about 5 wt%, 7 wt%, or 9 wt% to about 15 wt%, 13 wt%, or 11 wt% (WWB), and most suitably about 10 wt%.

[0306] The thin film can be made from a gel, which may additionally contain a solvent in an amount of 0.1–50 wt%. However, the inventors have found that if a solvent in which the flavor is dissolved is included in the gel, gel stability is reduced and the flavor may crystallize from the gel. Therefore, in some cases, the gel does not contain a solvent in which the flavor is dissolved.

[0307] In some embodiments, the thin film comprises less than 60 wt% of filler, such as 1 wt% to 60 wt%, or 5 wt% to 50 wt%, or 5 wt% to 30 wt%, or 10 wt% to 20 wt%.

[0308] In other embodiments, the thin film comprises less than 20 wt%, suitably less than 10 wt%, or less than 5 wt% of filler. In some cases, the thin film comprises less than 1 wt% of filler, and in some cases, does not comprise filler.

[0309] The filler (if present) may include one or more inorganic filler materials such as calcium carbonate, perlite, vermiculite, diatomaceous earth, colloidal silica, magnesium oxide, magnesium sulfate, and magnesium carbonate, and suitable inorganic adsorbents such as molecular sieves. The filler may include one or more organic filler materials such as wood pulp, cellulose, and cellulose derivatives. In particular, in some cases, the film does not contain calcium carbonate such as chalk.

[0310] In certain embodiments comprising a filler, the filler is fibrous. For example, the filler may be a fibrous organic filler material such as wood pulp, hemp fiber, cellulose, or cellulose derivatives. Without wishing to be bound by theory, it is believed that incorporating a fibrous filler into an amorphous solid can increase the tensile strength of the material. This can be particularly advantageous in examples where the thin film is provided as a sheet, such as a thin film sheet that wraps a load of aerosol-generating material.

[0311] In some embodiments, the thin film does not contain tobacco fibers. In certain embodiments, the thin film does not contain fibrous material.

[0312] In some embodiments, the aerosol-generating material may contain 10% to 90% by weight of tobacco leaves having a nicotine content of more than 1.5% by weight of the tobacco leaves. In some embodiments, the tobacco material contains tobacco leaves in an amount of about 10% to about 30% by weight of the tobacco components. It has been advantageously found that using tobacco leaves having a nicotine content of more than 1.5% in combination with a lower nicotine base material, such as paper-reconstituted tobacco, provides a tobacco material having an appropriate nicotine level but better sensory performance than using paper-reconstituted tobacco alone. Tobacco leaves, for example, whole tobacco, may have a nicotine content of, for example, 1.5% to 5% by weight of the tobacco leaves.

[0313] The inclusion of acid has been found to improve the release of other substances, such as nicotine, from the material. In some embodiments, the material contains acid in an amount (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 moles of nicotine in the material. In some embodiments, the material contains acid in an amount (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 moles of nicotine in the material.

[0314] 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. The term lactic acid is synonymous with the term 2-hydroxypropanoic acid and includes D and L enantiomers separately or as a mixture 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-oxopentanic acid.

[0315] In some embodiments, the aerosol generating material may include an aerosol forming material.

[0316] Aerosol-forming materials

[0317] In some embodiments, the aerosol-forming material may include an aerosol-forming material as defined herein. In this context, an "aerosol-forming material" is a formulation that promotes the generation of an aerosol. The aerosol-forming material may promote the generation of an aerosol by promoting initial vaporization and / or condensation of a gas into an inhalable solid and / or liquid aerosol. In some embodiments, the aerosol-forming material may improve the delivery of flavors from the aerosol-forming material.

[0318] Aerosol-forming materials are included in aerosol-generating materials at a higher level than that used in products designed to generate aerosols by combustion.

[0319] Generally, any suitable aerosol-forming material or agent may be included in the aerosol-forming material, including those described herein. Suitable aerosol-forming materials include, but are not limited to, polyols such as sorbitol, glycerol, and glycols such as propylene glycol or triethylene glycol; esters such as monohydric alcohols, high-boiling point hydrocarbons, acids such as lactic acid, glycerol derivatives, diacetin, triacetin, triethylene glycol diacetate, triethyl citrate or myristates including ethyl myristate and isopropyl myristate; and non-polyols such as aliphatic carboxylic acid esters such as methyl stearate, dimethyl dodecanedioate and dimethyl tetradecanedioate.

[0320] The aerosol-forming material may include glycerol, propylene glycol, or a mixture of glycerol and propylene glycol.

[0321] In some embodiments, the aerosol-forming material comprises at least 5 weight%, more preferably at least 10 weight%, of an aerosol-generating substrate. Preferably, the aerosol-forming material comprises less than 30 weight% or less than 25 weight%, for example, 12 weight% to 25 weight%, or 15 weight% to 20 weight% of an aerosol-generating substrate.

[0322] The aerosol-forming material may be included, for example, in the body (if present) of the aerosol-generating material and / or the constituent material.

[0323] Aerosol modifier

[0324] In some embodiments, the aerosol generating material may include an aerosol modifier. As used herein, the term "aerosol modifier" refers to a substance capable of modifying an aerosol upon use.

[0325] An aerosol modifier (also referred to herein as an aerosol modifier additive) is a substance generally located downstream of the aerosol generation region and is configured to modify the generated aerosol, for example, by altering the taste, flavor, acidity, or other properties of the aerosol. The aerosol modifier may be provided to an aerosol modifier release component operable to selectively release the aerosol modifier.

[0326] The aerosol modifier may be, for example, an additive or an adsorbent. The aerosol modifier may include, for example, one or more of flavoring agents, coloring agents, water, and carbon adsorbents. The aerosol modifier may be, for example, a solid, a liquid, or a gel. The aerosol modifier may be in the form of a powder, thread, or granule. The aerosol modifier may not contain filter material.

[0327] The aerosol generating material described in this specification may contain an aerosol modifier such as any of the flavors described in this specification.

[0328] In some embodiments, the aerosol generating material may contain menthol to form a mentholated article. The aerosol generating material may contain 3 mg to 20 mg of menthol, preferably 5 mg to 18 mg, more preferably 8 mg to 16 mg of menthol.

[0329] In some embodiments, the aerosol generating material may contain 16 mg of menthol. The aerosol generating material may contain 2 wt% to 8 wt% of menthol, preferably 3 wt% to 7 wt% of menthol, more preferably 4 wt% to 5.5 wt% of menthol. In one embodiment, the aerosol generating material contains 4.7 wt% of menthol. These high levels of menthol loading can be achieved by using a high proportion of reconstituted tobacco material, for example, more than 50 wt% of the tobacco material. Alternatively or additionally, the use of a high volume of the aerosol generating material, for example, tobacco material, may increase the level of menthol loading that can be achieved, for example, when more than about 500 mm³ or suitably more than about 1000 mm³ of the aerosol generating material, such as tobacco material, is used.

[0330] In some embodiments, the aerosol generating material may include a functional material. In some embodiments, the functional material may include one or more of flavors, carriers, pH adjusters, stabilizers, and / or antioxidants.

[0331] In some embodiments, the aerosol generating material may include an active substance as defined herein.

[0332] The aerosol generating material described in this specification may contain nicotine. The nicotine content may be 0.5 to 1.75% based on the weight of the aerosol generating material, for example, 0.8 to 1.5% based on the weight of the aerosol generating material.

[0333] The material may be present on or within a support to form a substrate. The support may be, for example, paper, card, paperboard, cardboard, reconstructed material, plastic material, ceramic material, composite material, glass, metal, or metal alloy, or may include these. In some embodiments, the support includes a susceptor. In some embodiments, the susceptor is embedded within the material. In some alternative embodiments, the susceptor is on one side or both sides of the material.

[0334] A consumable is an article comprising or composed of an aerosol-generating material, intended to be consumed in whole or in part during use by a user. The consumable may include one or more other components, such as an aerosol-generating material storage area, an aerosol-generating material transfer component, an aerosol-generating area, a housing, a wrapper, a mouthpiece, a filter, and / or an aerosol modifier. The consumable may also include an aerosol generator, such as a heater, that emits heat to cause the aerosol-generating material to generate an aerosol upon use. The heater may include, for example, a combustible material, a material heatable by electrical conduction, or a susceptor.

[0335] In the compositions described herein, where amounts are given in weight percent, to avoid any doubt, this refers to a dry weight basis unless specifically stated otherwise. Accordingly, water that may be present in the aerosol-generating material or any component thereof is completely ignored for the purpose of determining the weight percent. The moisture content of the aerosol-generating material described herein may vary and may, for example, be 5 to 15% by weight. The moisture content of the aerosol-generating material described herein may vary depending, for example, the temperature, pressure, and humidity conditions under which the compositions are maintained. The moisture content may be determined by Karl-Fisher analysis, as is known to those skilled in the art. On the other hand, to avoid any doubt, any component other than water is included in the weight of the aerosol-generating material even when the additive, such as the aerosol-generating material, is a component in the liquid phase, such as glycerol or propylene glycol. However, if an additive is provided to the aerosol-generating material instead of being added separately to the aerosol-generating material or in addition thereto, the additive is not included in the weight of the aerosol-generating component but is included in the weight percentage of the additive as defined herein.

[0336] article

[0337] Articles such as rod shapes are often named according to product length: "Regular" (generally in the range of 68 mm to 75 mm, e.g., about 68 mm to about 72 mm), "Short" or "Mini" (68 mm or less), "King Size" (generally in the range of 75 mm to 91 mm, e.g., about 79 mm to about 88 mm), "Long" or "Super King" (generally in the range of 91 mm to 105 mm, e.g., about 94 mm to about 101 mm), and "Ultra Long" (generally in the range of about 110 mm to about 121 mm).

[0338] Also named according to product circumference: "Regular" (approx. 23 mm to 25 mm), "Wide" (greater than 25 mm), "Slim" (approx. 22 mm to 23 mm), "Demi-Slim" (approx. 19 mm to 22 mm), "Super Slim" (approx. 16 mm to 19 mm), and "Micro Slim" (approx. less than 16 mm).

[0339] Therefore, a king size, super slim format item will have, for example, a length of about 83 mm and a circumference of about 17 mm.

[0340] Articles may have any product size format. However, the use of aerosol generator wrappers containing plant-based materials containing active substances has been found to be particularly advantageous for use with wider product size formats. In these products, the aerosol generator has a smaller surface area to volume ratio than in thinner product size formats, and the wrapper can be heated to generate a significant amount of aerosol before the aerosol generator is heated to the aerosol generation temperature.

[0341] Each format can be produced with mouthpieces of different lengths. The mouthpiece length may be approximately 30 mm to 50 mm. The tipping paper connects the mouthpiece to the aerosol generator and will generally have a longer length than the mouthpiece, for example, 3 mm to 10 mm longer, so that the tipping paper covers the mouthpiece and overlaps the aerosol generator to connect the mouthpiece to the aerosol generator.

[0342] The articles described herein and their aerosol generating parts and mouthpieces may be made of any of the above formats, but are not limited thereto.

[0343] The terms 'upstream' and 'downstream' as used in this specification are relative terms defined in relation to the direction of the mainstream aerosol inhaled through the article or device in use.

[0344] delivery system

[0345] As used herein, the term “delivery system” is intended to include systems that deliver substances to a user, and includes non-combustible aerosol delivering systems that release compounds from aerosol generating materials without burning the aerosol generating materials, such as electronic cigarettes, tobacco heating products, and hybrid systems that use a combination of aerosol generating materials to generate aerosols.

[0346] As used herein, the term “non-combustible aerosol delivery system” refers to a system in which the constituent aerosol generating material (or its components) of the aerosol delivery system is not combusted or burned to facilitate delivery to a user.

[0347] Although the articles described herein have been found to have advantages when used with a device configured to heat a load of aerosol-generating material from the outside, the disclosed articles may nevertheless be used in other types of devices having different heating arrangements. In fact, the disclosed articles have been found to provide advantages even when used with devices having alternative heating arrangements. For example, when used with a device configured to heat the article from the inside by means such as a blade heater, the disclosed articles have been found to provide improved delivery of the active substance in the final puffs. This is due to the wrapper of the aerosol-generating material, which is the part of the load furthest from the heater in this type of device and is therefore heated last, and, including a plant material containing the active substance, delivers the active substance to the user when the wrapper is heated to an appropriate temperature.

[0348] The non-combustible aerosol delivery system may be a power-supplied non-combustible aerosol delivery system.

[0349] A non-combustible aerosol delivery system may be a tobacco heating system also known as a heat-not-burn system.

[0350] A non-combustible aerosol providing device may include a power source and a controller. The power source may be an electric power source or a heating power source. In some embodiments, the heating power source may include a carbon substrate to which energy can be supplied to distribute power in the form of heat to an aerosol generating material or a heat transfer material adjacent to the heating power source. In some embodiments, a power source such as the heating power source may be provided to an article to form a non-combustible aerosol providing system.

[0351] A susceptor is a material capable of being heated by the penetration of a changing magnetic field, such as an alternating magnetic field. The heating material may be an electrically conductive material, and accordingly, the penetration of a changing magnetic field causes induction heating of the heating material. The heating material may be a magnetic material, and accordingly, the penetration of a changing magnetic field causes magnetic hysteresis heating of the heating material. The heating material may be both electrically conductive and magnetic, and accordingly, the heating material can be heated by both heating mechanisms.

[0352] Induction heating is a process in which an electrically conductive object is heated by penetrating it with a changing magnetic field. This process is explained by Faraday's law of induction and Ohm's law. An induction heater may include an electromagnet and a device for passing a changing current, such as alternating current, through the electromagnet. When the electromagnet and the object to be heated are positioned relative to each other in a manner suitable for the resulting changing magnetic field generated by the electromagnet to penetrate the object, one or more eddy currents are generated within the object. The object has resistance to the flow of currents. Therefore, when these eddy currents are generated in the object, their flow against the object's electrical resistance causes the object to heat up. This process is called Joule heating, Ohmic heating, or resistance heating. Objects that can be inductively heated are known as susceptors.

[0353] In one embodiment, the susceptor is in the form of a closed circuit. It has been found that when the susceptor is in the form of a closed circuit, the magnetic coupling between the susceptor and the electromagnet is enhanced during use, resulting in greater or improved Joule heating.

[0354] Magnetic hysteresis heating is the process by which an object made of magnetic material heats up by penetrating it with a changing magnetic field. Magnetic materials can be considered to contain many atomic-scale magnets, or magnetic dipoles. When a magnetic field penetrates such a material, the magnetic dipoles align with the magnetic field. Therefore, when a changing magnetic field, such as an alternating magnetic field generated by an electromagnet, penetrates a magnetic material, the orientation of the magnetic dipoles changes according to the changing applied magnetic field. This reorientation of magnetic dipoles causes heat to be generated in the magnetic material.

[0355] When an object is electrically conductive and magnetic, penetrating the object with a changing magnetic field can induce both Joule heating and magnetic hysteresis in the object. Furthermore, the use of magnetic materials can strengthen the magnetic field, which can enhance Joule heating.

[0356] In each of the above processes, since heat is generated within the object itself rather than by an external heat source via heat conduction, a rapid temperature rise and a more uniform heat distribution within the object can be achieved. This can be accomplished particularly through the selection of suitable object materials and shapes, as well as appropriate varying magnetic field magnitudes and orientations for the object. Furthermore, since induction heating and magnetic hysteresis heating do not require a physical connection between the source of the varying magnetic field and the object, greater design freedom and control over the heating profile can be achieved, and costs can be lower.

[0357] Devices of FIGS. 4 to 8

[0358] A non-combustible aerosol providing device is used to heat the aerosol generating portion (3) of the articles (1, 1') described herein. The non-combustible aerosol providing device preferably includes a coil, as this has been found to enable improved heat transfer to the articles (1, 1') compared to other batches.

[0359] In some examples, the coil is configured to cause heating of at least one electrically conductive heating element when in use, thereby causing heating of the aerosol generating material by allowing thermal energy to be conducted from at least one electrically conductive heating element to the aerosol generating part.

[0360] In some examples, the coil is configured to generate a changing magnetic field to penetrate at least one heating element when in use, thereby causing inductive heating and / or magnetic hysteresis heating of at least one heating element. In such arrangements, the heating element or each heating element may be referred to as a "susceptor" as defined herein. A coil configured to generate a changing magnetic field to penetrate at least one electrically conductive heating element when in use, thereby causing inductive heating of at least one electrically conductive heating element, may be referred to as an "induction coil" or an "inductor coil."

[0361] The device may include heating element(s), for example, electrically conductive heating element(s), and the heating element(s) may be positioned or positioned appropriately with respect to the coil to enable such heating of the heating element(s). The heating element(s) may be in a fixed position with respect to the coil. Alternatively, at least one heating element, for example, at least one electrically conductive heating element, may be included in the article (1, 1') to be inserted into the heating zone of the device, and the article (1, 1') may also include an aerosol generating material (3) and be removable from the heating zone after use. Alternatively, both the device and the article (1, 1') may include at least one respective heating element, for example, at least one electrically conductive heating element, and the coil may be intended to cause heating of the heating element(s) of the device and the article respectively when the article is in the heating zone.

[0362] In some examples, the coil is helical. In some examples, the coil surrounds at least a portion of the heating zone of a device configured to accommodate an article such as that shown in FIG. 1 and FIG. 3. In some examples, the coil is a helical coil that surrounds at least a portion of the heating zone.

[0363] In some examples, the device includes an electrically conductive heating element that at least partially surrounds a heating zone, and the coil is a spiral coil that surrounds at least a portion of the electrically conductive heating element. In some examples, the electrically conductive heating element is tubular. In some examples, the coil is an inductor coil.

[0364] Using an aerosol delivery system comprising a coil as described herein, for example, an induction coil that heats at least a portion of an aerosol-generating material to at least 200°C, more preferably at least 220°C, can enable the generation of an aerosol from an aerosol-generating material having certain properties considered to be more similar to the properties of FMC products. The use of an article as disclosed herein, in which the aerosol-generating material is wrapped in a wrapper comprising a plant material containing an active substance, has been found to provide properties more similar to the properties of FMC products, particularly in the initial candles / puffs.

[0365] In embodiments in which the plant material comprises reconstituted tobacco, at least 10 μg of nicotine, suitably at least 30 μg or 40 μg of nicotine, can be aerosolized from the wrapper in the initial puffs under an airflow of at least 1.50 L / m.

[0366] The non-combustible aerosol providing device is preferably positioned to heat the aerosol generating part (3) of the article (1, 1') to a maximum temperature of at least 160°C. Preferably, the non-combustible aerosol providing device is positioned to heat the aerosol generating part (3) of the article (1, 1') to a maximum temperature of at least about 270°C, such as at least about 200°C, at least about 220°C, or at least about 240°C, more preferably about 300°C, at least once during the heating process by the non-combustible aerosol providing device.

[0367] Fig. 4

[0368] FIG. 4 illustrates an example of a non-combustible aerosol providing device (100) for generating an aerosol from an aerosol generating medium / material such as the aerosol generating material (3) of the article (1) described in this specification.

[0369] Approximately, the device (100) may be used to heat a replaceable article (110) comprising an aerosol-generating medium, which may be, for example, the article (1) or article (1') described herein, and generates an aerosol or other inhalable medium inhaled by a user of the device (100). The device (100) and the replaceable article (110) together form a system. General references regarding the use and mechanism of action of the article (110) together with the device (100) apply equally to the article (1, 1', and / or 1'').

[0370] The device (100) includes a housing (102) (in the form of an outer cover) that surrounds and accommodates various components of the device (100). The device (100) has an opening (104) at one end through which an article (110) can be inserted for heating by a heating assembly. When in use, the article (110) can be inserted completely or partially into the heating assembly, whereby it can be heated by one or more components of the heater assembly.

[0371] The device (100) of this example includes a first end member (106), and the first end member (106) includes a cover (108) movable relative to the first end member (106) to close the opening (104) when the article (110) is not in place. In FIG. 4, the cover (108) is shown in an open configuration, but the cover (108) can be moved to a closed configuration. For example, the user can cause the cover (108) to slide in the direction of arrow “B”.

[0372] The device (100) may also include a user-operable control element (112), such as a button or switch, that operates the device (100) when pressed. For example, the user can turn on the device (100) by operating the switch (112).

[0373] The device (100) may also include electrical components such as a socket / port (114) capable of receiving a cable for charging the battery of the device (100). For example, the socket (114) may be a charging port such as a USB charging port.

[0374] Fig. 5

[0375] FIG. 5 illustrates the device (100) of FIG. 4 with the outer cover (102) removed and the article (110) removed. The device (100) forms a longitudinal axis (134).

[0376] As illustrated in FIG. 5, a first end member (106) is positioned at one end of the device (100), and a second end member (116) is positioned at the opposite end of the device (100). The first and second end members (106, 116) together form at least partially the end surfaces of the device (100). For example, the lower surface of the second end member (116) forms at least partially the lower surface of the device (100). The edges of the outer cover (102) may also form part of the end surfaces. In this example, the cover (108) also forms part of the upper surface of the device (100).

[0377] The end of the device closest to the opening (104) may be known as the proximal end (or mouse end) of the device (100) because it is closest to the user's mouth during use. During use, the user inserts the item (110) into the opening (104), operates the user control unit (112) to start heating the aerosol generating material, and inhales the aerosol generated from the device. As a result, the aerosol flows through the device (100) along a flow path toward the proximal end of the device (100).

[0378] The other end of the device furthest from the opening (104) may be known as the distal end of the device (100) because it is the end furthest from the user's mouth during use. As the user inhales the aerosol generated from the device, the aerosol flows away from the distal end of the device (100).

[0379] The device (100) further includes a power source (118). The power source (118) may be a battery, for example, a rechargeable battery or a non-rechargeable battery. Examples of suitable batteries include, for example, a lithium battery (e.g., a lithium-ion battery), a nickel battery (e.g., a nickel-cadmium battery), and an alkaline battery. The battery is electrically coupled to a heating assembly to supply power when necessary and under the control of a controller (not shown) to heat the aerosol generating material. In this example, the battery is connected to a central support (120) that holds the battery (118) in place.

[0380] The device further includes at least one electronic module (122). The electronic module (122) may include, for example, a printed circuit board (PCB). The PCB (122) may support at least one controller, such as a processor, and memory. The PCB (122) may also include one or more electrical tracks for electrically connecting various electronic components of the device (100). For example, battery terminals may be electrically connected to the PCB (122) so that power can be distributed throughout the device (100). A socket (114) may also be electrically connected to the battery via the electrical tracks.

[0381] In the example device (100), the heating assembly is an induction heating assembly and includes various components for heating the aerosol-generating material of the article (110) through an induction heating process. Induction heating is a process of heating an electrically conductive object (e.g., a susceptor) by electromagnetic induction. The induction heating assembly may include an induction element, e.g., one or more inductor coils, and a device for passing a changing current, such as an alternating current, through the induction element. The changing current in the induction element generates a changing magnetic field. The changing magnetic field penetrates the susceptor, which is appropriately positioned with respect to the induction element, and generates eddy currents within the susceptor. The susceptor has electrical resistance to the eddy currents, and thus the flow of eddy currents against this resistance causes the susceptor to be heated by Joule heating. When the susceptor contains a ferromagnetic material such as iron, nickel, or cobalt, heat can also be generated by magnetic hysteresis loss in the susceptor, that is, by the changing orientation of magnetic dipoles in the magnetic material as a result of alignment with a changing magnetic field. In induction heating, compared to heating by conduction, for example, heat is generated inside the susceptor, allowing for rapid heating. Additionally, since there is no need for physical contact between the induction heater and the susceptor, an enhanced degree of freedom is allowed in configuration and application.

[0382] The induction heating assembly of the example device (100) includes a susceptor array (132) (referred to as "susceptor" herein), a first inductor coil (124), and a second inductor coil (126). The first and second inductor coils (124, 126) are made of an electrically conductive material. In this example, the first and second inductor coils (124, 126) are made of Litz wire / cable wound in a spiral manner to provide spiral inductor coils (124, 126). The Litz wire comprises a plurality of individual wires that are individually insulated and twisted together to form a single wire. The Litz wires are designed to reduce skin effect losses in the conductor. In the example device (100), the first and second inductor coils (124, 126) are made of copper Litz wire having a rectangular cross-section. In other examples, the Litz wire can have cross-sections of other shapes, such as circular.

[0383] The first inductor coil (124) is configured to generate a first changing magnetic field to heat a first section of the susceptor (132), and the second inductor coil (126) is configured to generate a second changing magnetic field to heat a second section of the susceptor (132). In this example, the first inductor coil (124) is adjacent to the second inductor coil (126) in a direction along the longitudinal axis (134) of the device (100) (i.e., the first and second inductor coils (124, 126) do not overlap). The susceptor array (132) may include a single susceptor or two or more separate susceptors. The ends (130) of the first and second inductor coils (124, 126) may be connected to the PCB (122).

[0384] It will be understood that the first and second inductor coils (124, 126) may have at least one characteristic that is different from one another in some examples. For example, the first inductor coil (124) may have at least one characteristic that is different from the second inductor coil (126). More specifically, in one example, the first inductor coil (124) may have an inductance value different from that of the second inductor coil (126). In FIG. 5, the first and second inductor coils (124, 126) have different lengths so that the first inductor coil (124) is wound over a smaller section of the susceptor (132) than the second inductor coil (126). Thus, the first inductor coil (124) may have a different number of windings than the second inductor coil (126) (assuming the spacing between individual windings is substantially the same). In another example, the first inductor coil (124) may be made of a different material than the second inductor coil (126). In some examples, the first and second inductor coils (124, 126) may be substantially the same.

[0385] In this example, the first inductor coil (124) and the second inductor coil (126) are wound in opposite directions. This can be useful when the inductor coils are activated at different times. For example, initially, the first inductor coil (124) may operate to heat the first section / part of the article (110), and later, the second inductor coil (126) may operate to heat the second section / part of the article (110). Winding the coils in opposite directions helps to reduce the current induced in the inactive coil when used with a specific type of control circuit. In FIG. 5, the first inductor coil (124) is a left-handed coil, and the second inductor coil (126) is a left-handed coil. However, in another embodiment, the inductor coils (124, 126) may be wound in the same direction, or the first inductor coil (124) may be left-handed and the second inductor coil (126) may be right-handed.

[0386] The susceptor (132) in this example is hollow and thus forms a receptacle into which an aerosol-generating material is received. For example, an article (110) can be inserted into the susceptor (132). In this example, the susceptor (120) is tubular with a circular cross-section.

[0387] The susceptor (132) may be made of one or more materials. Preferably, the susceptor (132) comprises carbon steel having a coating of nickel or cobalt.

[0388] In some examples, the susceptor (132) may comprise at least two materials that can be heated at two different frequencies for the selective aerosolization of at least two materials. For example, a first section of the susceptor (132) (heated by the first inductor coil (124)) may comprise a first material, and a second section of the susceptor (132) heated by the second inductor coil (126) may comprise a second different material. In other examples, the first section may comprise a first and a second material, and the first and a second material may be heated differently based on the operation of the first inductor coil (124). The first and a second material may be adjacent along an axis formed by the susceptor (132) or may form different layers within the susceptor (132). Likewise, the second section may include third and fourth materials, and the third and fourth materials may be heated differently based on the operation of the second inductor coil (126). The third and fourth materials may be adjacent along an axis formed by the susceptor (132) or may form different layers within the susceptor (132). For example, the third material may be identical to the first material, and the fourth material may be identical to the second material. Alternatively, each material may be different. The susceptor may include, for example, carbon steel or aluminum.

[0389] The device (100) of FIG. 5 may generally be tubular and further includes an insulating member (128) that at least partially surrounds the susceptor (132). The insulating member (128) may be composed of any insulating material, such as plastic, for example. In this particular example, the insulating member is composed of polyether ether ketone (PEEK). The insulating member (128) may help to insulate various components of the device (100) from heat generated in the susceptor (132).

[0390] The insulating member (128) may also fully or partially support the first and second inductor coils (124, 126). For example, as shown in FIG. 5, the first and second inductor coils (124, 126) are positioned around the insulating member (128) and come into contact with the radially outward surface of the insulating member (128). In some examples, the insulating member (128) does not come into contact with the first and second inductor coils (124, 126). For example, a small gap may exist between the outer surface of the insulating member (128) and the inner surface of the first and second inductor coils (124, 126).

[0391] In a particular example, the susceptor (132), the insulating member (128), and the first and second inductor coils (124, 126) are coaxial with respect to the central longitudinal axis of the susceptor (132).

[0392] FIGS. 6 to 8

[0393] FIG. 6 illustrates a side view of a device (100) shown in partial cross-section. In this example, an outer cover (102) is present. The rectangular cross-sectional shape of the first and second inductor coils (124, 126) is more clearly visible.

[0394] The device (100) further includes a support (136) that engages with one end of the susceptor (132) to secure the susceptor (132) in place. The support (136) is connected to a second end member (116).

[0395] The device may also include a second printed circuit board (138) associated with a control element (112).

[0396] The device (100) further includes a second cover / cap (140) and a spring (142) positioned toward the distal end of the device (100). The spring (142) allows the second cover (140) to be opened to provide access to the susceptor (132). A user may open the second cover (140) to clean the susceptor (132) and / or the support (136).

[0397] The device (100) further includes an expansion chamber (144) extending from the proximal end of the susceptor (132) toward the opening (104) of the device. At least partially located within the expansion chamber (144) is a retaining clip (146) that contacts and secures an article (110) when received within the device (100). The expansion chamber (144) is connected to the end member (106).

[0398] FIG. 7 is an exploded view of the device (100) of FIG. 6 with the outer cover (102) omitted.

[0399] FIG. 8a illustrates a cross-sectional view of a portion of the device (100) of FIG. 6. FIG. 8b illustrates an enlarged view of the area of ​​FIG. 8a. FIG. 8b illustrates an article (110) housed within a susceptor (132), wherein the article (110) is dimensioned such that the wrapper of the aerosol generating portion of the article (110) abuts the inner surface of the susceptor (132). This ensures that heating is most efficient. This arrangement also ensures that the wrapper is heated to the aerosol generating temperature before the aerosol generating material. Consequently, the initial aerosol delivered to the user is generated by the wrapper of the article containing the plant material containing the active substance.

[0400] FIG. 8b illustrates that the outer surface of the susceptor (132) is spaced apart from the inner surface of the inductor coils (124, 126) by a distance (150) measured in a direction perpendicular to the longitudinal axis (158) of the susceptor (132). In one particular example, the distance (150) is about 3 mm to 4 mm, about 3-3.5 mm, or about 3.25 mm.

[0401] FIG. 8b also illustrates that the outer surface of the insulating member (128) is spaced apart from the inner surface of the inductor coils (124, 126) by a distance (152) measured in a direction perpendicular to the longitudinal axis (158) of the susceptor (132). In one particular example, the distance (152) is about 0.05 mm. In another example, the distance (152) is substantially 0 mm, so that the inductor coils (124, 126) come into contact with the insulating member (128).

[0402] In one example, the susceptor (132) has a wall thickness (154) of about 0.025 mm to 1 mm, or about 0.05 mm.

[0403] In one example, the susceptor (132) has a length of about 40 mm to 60 mm, about 40 mm to 45 mm, or about 44.5 mm.

[0404] In one example, the insulating member (128) has a wall thickness (156) of about 0.25 mm to 2 mm, 0.25 mm to 1 mm, or about 0.5 mm.

[0405] Fig. 9

[0406] FIG. 9 illustrates an example of a method suitable for manufacturing an article as shown in FIG. 1 for use in a non-combustible aerosol supply system.

[0407] In step S101, first and second portions of the aerosol-forming material—each comprising an aerosol-forming material wrapped in a wrapper comprising a plant material containing an active substance—are positioned adjacent to each of the first and second longitudinal ends of the mouthpiece rod. The mouthpiece rod comprises a rod formed from a filament tow wrapped in a plug wrapper positioned between the first and second ends.

[0408] In step S102, the first and second portions of the aerosol generating material are connected to the mouthpiece rod. In this example, this is accomplished by wrapping a tipping paper (5), as described herein, around at least a portion of each portion of the mouthpiece rod and the aerosol generating material (3). In this example, the tipping paper (5) extends about 5 mm longitudinally over the outer surface of each portion of the aerosol generating material (3).

[0409] In step S103, the mouthpiece rod is cut to form first and second articles, each article comprising a mouthpiece that includes a portion of the mouthpiece rod. In this example, the double-length mouthpiece rod is cut at approximately halfway along its length to form first and second substantially identical articles.

[0410] Examples

[0411] Test articles were manufactured to test the articles described in this specification when used with non-combustible aerosol providing devices such as the device (100) described with reference to FIGS. 4 through 8.

[0412] All test items were produced in a demi-slim format.

[0413] Test item 1

[0414] Test item 1 was produced to have the arrangement shown in FIG. 1a. The wrapper (10) of the load of aerosol generating material was a conventional Alu tobacco wrapper commonly used in articles of this type for use with non-combustible aerosol providing devices such as the device (100) described with reference to FIG. 4 through 8.

[0415] The aerosol generating material (3) was a blend of 80 parts of reconstituted tobacco material and 20 parts of tobacco.

[0416] Test item 1 included a mouthpiece (2) consisting of a plug of cellulose acetate tow (6) wrapped in a plug wrapper (7). The mouthpiece was attached to a rod of aerosol-generating material using a tipping wrapper (5). The tipping wrapper was a conventional paper wrapper commonly used in this type of article and had a light brown "cork" appearance. The mouthpiece tipping paper was ventilated by a ring of perforations wrapping the wrapper.

[0417] Test item 2

[0418] Test item 2 was identical to test item 1 except for the placement of the tipping wrapper at the end of the mouse.

[0419] Specifically, in test item 2, the tipping wrapper at the mouth end downstream of the ring of perforations was wrapped with a wrapper having a dark brown appearance similar to reconstituted tobacco material.

[0420] The tipping wrapper of Test Item 2 used to combine the mouthpiece and the aerosol-generating material rod was otherwise identical to that of Test Item 1. Specifically, the tipping wrapper also included the same arrangement of ventilation holes at the same locations as those of Test Item 1. All other components and arrangements of the article including the wrappers and the aerosol-generating material were also identical to those of Test Item 1.

[0421] Test item 3

[0422] Test item 3 was identical to test item 1 except for the wrapper (10) of the aerosol generating material rod.

[0423] In test item 3, the wrapper (10) was a single-layer reconstructed cigarette wrapper containing nicotine and having the following specifications:

[0424] Basis weight (g / m²) 2 ): 39

[0425] Tensile strength (N / 15mm) 12

[0426] moisture (%) 9

[0427] Tobacco content 30

[0428] All other components of the article, including the tipping wrapper and the aerosol-generating material, were identical to those of Test Article 1.

[0429] Experiment setup

[0430] The test items were each used by a panel of test consumers on a test device.

[0431] The test device was a non-combustible aerosol delivery device as illustrated in FIGS. 4 through 8. The device was surrounded by a cardboard shield so that only the mouth end tip of the mouthpiece of the test item under test was visible to the test consumers.

[0432] A panel of 30 test consumers was used in the experiments.

[0433] Experiment 1

[0434] In Experiment 1, Test Product 1 and Test Product 2 were used and compared by test consumers.

[0435] In this experiment, because the only part of the test products visible to the test consumers was the mouthpiece tip, the test products had significantly different appearances to the test consumers. This led the test consumers to believe that they were using different products, but in reality, the test products were identical except for the appearance at the mouthpiece tip.

[0436] Experiment 2

[0437] In Experiment 2, Test Product 1 and Test Product 3 were used and compared by test consumers.

[0438] In this experiment, the test products had the same appearance to the test consumers because the tipping paper and mouthpiece placement, which were the only parts of the test products visible to the test consumers, were identical. This led the test consumers to believe that they were using the same products, but in reality, the test products had different wrappers of aerosol-generating material loads.

[0439] Test consumers found that Test Product 3 had higher taste intensity, higher impact, more visible aerosol, and lower irritation compared to Test Product 1.

[0440] Accordingly, the articles described in this specification, such as articles (1, 1', 1''), have specific advantages when used with non-combustible aerosol providing devices, such as the device (100) described with reference to FIGS. 4 through 8, for example.

[0441] The various embodiments described herein are presented solely to assist in understanding and teaching the claimed features. These embodiments are provided only as representative samples of the embodiments and are not comprehensive or / or exclusive. The advantages, embodiments, examples, functions, features, structures, and / or other aspects described herein should not be construed as a limitation to the scope of the invention defined by the claims or to 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 invention may suitably include, be composed of, or be composed of suitable combinations of the disclosed elements, components, features, parts, steps, means, etc., other than those specifically described herein. Additionally, the present disclosure may include other inventions that are not currently claimed but may be claimed in the future.

Claims

Claim 1 An article for use in a non-combustible aerosol provision system, wherein the article comprises an aerosol generating part, the aerosol generating part comprises an aerosol generating material wrapped in a wrapper, and the wrapper comprises a plant material containing an active substance. Claim 2 Article 1, wherein the wrapper is positioned to be heated to produce an aerosol containing an active substance when used in a non-combustible aerosol providing system. Claim 3 Article 1 or 2, wherein the aerosol generating part is a rod, and the wrapper is disposed to extend around the longitudinal surface of the rod. Claim 4 Article 1 to 3, wherein the wrapper is a single-layer wrapper. Claim 5 An article according to any one of paragraphs 1 to 4, wherein the wrapper comprises an aerosol-forming material in an amount of less than 5 mass%. Claim 6 In any one of paragraphs 1 to 5, the wrapper is an article comprising a thin film. Claim 7 In any one of paragraphs 1 through 6, the wrapper is an article comprising reconstituted tobacco material. Claim 8 In paragraph 7, the wrapper is an article containing nicotine or a nicotine salt. Claim 9 Article 1 to 8, wherein the wrapper comprises a non-tobacco botanical material. Claim 10 In paragraph 9, the wrapper comprises (a) rooibos; and / or (b) mint, chamomile, eucalyptus, lavender, ginger, cinnamon, star anise, cocoa, hemp, fennel, and / or clove ingredients. Claim 11 Articles 1 through 10, wherein the active substance comprises nutraceuticals, nootropics, and / or psychotropic substances. Claim 12 Article 11, wherein the active substance comprises caffeine, taurine, thein, vitamin B6, vitamin B12, vitamin C, melatonin, and / or cannabinoids. Claim 13 A method for manufacturing an article according to any one of claims 1 to 12, wherein the method comprises the step of wrapping an aerosol-generating material with a wrapper to form an aerosol-generating portion, and wherein the wrapper comprises a plant material containing an active substance. Claim 14 A system comprising an article according to any one of claims 1 to 12 and a heating device configured to heat an aerosol generating portion of said article, wherein a wrapper is arranged to be heated to generate an aerosol before an aerosol generating material. Claim 15 In paragraph 14, the heating device comprises a cavity arranged to accommodate an aerosol generating portion of an article and to heat the outer surface of said aerosol generating portion, in a system. Claim 16 A system according to claim 14 or 15, wherein the heating device is arranged to heat the aerosol generating part to a temperature of about 200°C to 300°C. Claim 17 A system according to any one of claims 14 to 16, wherein the heating device comprises a cavity having an internal surface arranged to contact a longitudinal circumferential surface of an aerosol generating part and to heat a wrapper of the aerosol generating part to generate an aerosol containing an active substance from said wrapper. Claim 18 A system according to any one of claims 14 to 17, wherein the heating device accommodates an aerosol generating unit and is arranged to heat the aerosol generating unit to generate an aerosol containing an active substance before the aerosol containing an active substance is generated from an aerosol generating material. Claim 19 In any one of claims 14 to 18, the system is configured to heat the aerosol generating unit to generate an aerosol from the wrapper of the aerosol generating unit, and when in use, the aerosol composition of the initial puff is different from the aerosol composition of the initial puff generated using an article that does not include a wrapper of the aerosol generating unit comprising a plant material containing an active substance. Claim 20 A system according to any one of claims 14 to 19, wherein the system is configured to heat the aerosol generating part to generate an aerosol from both the wrapper of the aerosol generating part and the aerosol generating material, and, when in use, the aerosol from the wrapper is detectable before the aerosol from the aerosol generating material.

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