An article for use in an aerosol provision system

Abstract

An article for use in a non-combustible aerosol provision system is described. The article comprises an aerosol generating portion, wherein the aerosol generating portion comprises an aerosol generating material wrapped in a wrapper. The wrapper comprises a botanical material comprising an active substance.

Description

[0001] An article for use in an aerosol provision system

[0002] Technical Field

[0003] The present invention relates to an article for use in a non-combustible aerosol provision system, a method of manufacturing an article, and a system including the article and a device for heating aerosol generating material of the article.

[0004] Background

[0005] Certain products produce an aerosol during use, which is inhaled by a user. For example, heating devices heat an aerosol generating material to form an aerosol by heating, but not burning, the material. Such products commonly include aerosol generating material which is formed into a rod using a wrapper. The aerosol generating material is arranged to release an aerosol when heated. Summary

[0006] In accordance with embodiments of the invention, in a first aspect there is provided an article for use in a non-combustible aerosol provision system, the article comprising an aerosol generating portion, wherein the aerosol generating portion comprises an aerosol generating material wrapped in a wrapper, wherein the wrapper comprises a botanical material comprising an active substance.

[0007] The aerosol-generating portion may be arranged to be heated to generate aerosol when used in the non-combustible aerosol provision system. In some embodiments, the aerosol generating portion may be a rod. In some embodiments, the wrapper may be arranged to extend around the aerosol generating material, such as around the longitudinal surface of the rod.

[0008] The wrapper may be arranged to be heated to generate aerosol when used in the non-combustible aerosol provision system. In some embodiments, the wrapper may be arranged to be heated to generate aerosol before aerosol is generated by the aerosol-generating material, when used in a non-combustible aerosol provision system such as that of the fourth aspect. In some embodiments, the wrapper may be a single-layered wrapper. In some embodiments, the wrapper may comprise aerosol forming material in an amount of less than 5% by mass. In some embodiments, the wrapper may comprise aerosol forming material in an amount of less than 3% by mass, or less than 1% by mass. Preferably, the wrapper comprises no aerosol forming material or substantially no aerosol forming material. These values refer to the wrapper specifically, excluding 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 may have a dry weight basis of less than 42 g / m2. In some embodiments, the wrapper may have a dry weight basis of less than

[0010] 40 g / m2. In some embodiments, the wrapper may have a dry weight basis of about 39 g / m2.

[0011] In some embodiments, the wrapper may have a dry weight basis of 80-100 g / m2. In some embodiments, the wrapper may have a dry weight basis of 85-95 g / m2. In some embodiments, the wrapper may have a dry weight basis of about 90 g / m2.

[0012] 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%.

[0013] In some embodiments, the wrapper may have a tensile strength of 5-15 N / 15mm. In some embodiments, the wrapper may have a tensile strength of 7-14 N / 15mm, or 10-13 N / 15mm. In some embodiments, the wrapper may have a tensile strength of about 12 N / 15mm.

[0014] In some embodiments, the wrapper is not a conventional paper wrapper and does not comprise wood pulp. In some embodiments, the wrapper does not comprise cellulose fibre.

[0015] In some embodiments, the wrapper may comprise a thin film. The thin film may comprise less than 20wt%, such as l-15wt% water and / or an aerosol forming material in an amount of 5-80wt%, such as 10-50wt%. In some embodiments, the wrapper may consist of or comprise a single botanical material comprising a single active substance. In some embodiments, the wrapper may consist of or comprise a single botanical material comprising a plurality of different active substances.

[0016] In some embodiments, the active substance may comprise a nutraceutical, nootropic, and / or psychoactive. In some embodiments, the active substance may comprise caffeine, taurine, theine, vitamins such as B6 or B12 or C, melatonin, cannabinoids.

[0017] In some embodiments, the wrapper may consist of or comprise a combination of botanical materials. The botanical materials may each comprise a different active substance.

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

[0019] In some embodiments, the wrapper may consist of or comprise reconstituted tobacco material. In some embodiments, the wrapper may essentially consist of reconstituted tobacco material.

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

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

[0022] In some embodiments, the wrapper may consist of or comprise reconstituted non- tobacco botanical material. The wrapper may consist of or comprise mint, chamomile, eucalyptus, lavender, ginger, rooibos, cinnamon, star anise, cocoa, hemp, fennel, and / or clove material. In some embodiments, the wrapper may consist of or comprise rooibos. The use of a wrapper comprising rooibos has been found to produce a very light and pleasant vapour when heated. In some embodiments, the wrapper may consist of or comprise cannabis. In some embodiments, the active substance may comprise a nutraceutical, nootropic, and / or psychoactive. In some embodiments, the active substance may comprise 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 comprise caffeine, taurine, theine, vitamins such as B6 or B12 or C, melatonin, cannabinoids.

[0023] In some embodiments, the active substance may be a substance that is found naturally in the botanical material.

[0024] In some embodiments, the aerosol generating material may comprise a botanical material comprising an active substance.

[0025] In some embodiments, the aerosol generating material may comprise tobacco. In some embodiments, the aerosol generating material may consist of or comprise a tobacco component.

[0026] In some embodiments, the tobacco component may comprise leaf tobacco. The leaf tobacco may be included in the tobacco component in an amount of between about 10% and about 30% by weight of the tobacco component.

[0027] In some embodiments, the tobacco material may comprise a blend comprising lamina. In some embodiments, the blend may comprise greater than 50% lamina, such as greater than 60%, greater than 70%, greater than 80%, or greater than 9- % lamina. In some embodiments, the blend comprises greater than 95% lamina, and in some embodiments the blend comprises essentially 100% lamina.

[0028] In some embodiments, the tobacco component may comprise reconstituted tobacco material. The reconstituted tobacco material may be included in the aerosol generating material in an amount of between about 70% and about 90% by weight of the tobacco component. In some embodiments, the aerosol generating material may consist of or comprise a non-tobacco botanical material component. The non-tobacco botanical material component may consist of or comprise mint, chamomile, eucalyptus, lavender, ginger, rooibos, cinnamon, star anise, cocoa, hemp, fennel, and / or clove material. In some embodiments, the non-tobacco botanical material may consist of or comprise rooibos. In some embodiments, the non-tobacco botanical material may consist of or comprise cannabis.

[0029] In some embodiments, the aerosol generating material may consist of or comprise a single botanical material comprising a single active substance. In some embodiments, the aerosol generating material may consist of or comprise a single botanical material comprising a plurality of different active substances. In some embodiments, the aerosol generating material may comprise a blend comprising different botanical materials, which may include botanical and non-tobacco botanical materials. In some embodiments, the aerosol generating material may comprise a blend comprising mint, chamomile, eucalyptus, lavender, ginger, rooibos, cinnamon, star anise, cocoa, hemp, fennel, and / or clove material. In some embodiments, the aerosol generating material may comprise a blend comprising rooibos. In some embodiments, the aerosol generating material may comprise a blend comprising cannabis.

[0030] In some embodiments, the wrapper and the aerosol generating material may comprise the same botanical material. Off notes have been found to be reduced when the wrapper and the aerosol generating material comprise the same botanical material.

[0031] In some embodiments, the wrapper and the aerosol generating material may comprise the same botanical material, but in different forms. For example, in some embodiments, the wrapper and the aerosol generating material may comprise the same botanical material, comprising the same active substance but at different levels, or arranged to release the active substance in use into an aerosol at different levels of intensity or at different temperatures.

[0032] In some embodiments, the wrapper and the aerosol generating material may comprise a tobacco botanical material, but in different forms. For example, in some embodiments, the wrapper may comprise reconstituted tobacco material and the aerosol generating material may comprise a tobacco blend, such as a tobacco blend comprising lamina. In some embodiments, the wrapper may comprise a tobacco material that provides a more intense flavour and the aerosol generating material may comprise a less intense tobacco, or vice-versa. For example, in some embodiments, the wrapper may comprise dark tobacco and the aerosol generating material may comprise light tobacco. In some embodiments, the wrapper may comprise a tobacco material having a higher nicotine content than the tobacco material of the aerosol generating material. The use of a wrapper comprising a higher level of nicotine than the aerosol generating material has been advantageously found to allow the use of lower levels of tobacco in the aerosol generating material.

[0033] 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 in use releases nicotine at lower temperature than the tobacco material of the aerosol generating material.

[0034] In some embodiments, the wrapper and the aerosol generating material may comprise the same non-tobacco botanical material. In some embodiments, the wrapper and the aerosol generating material may comprise the same non-tobacco botanical material, but in different forms. For example, in some embodiments, the wrapper may comprise rooibos and the aerosol generating material may comprise rooibos. In some embodiments, the wrapper may comprise a non-tobacco botanical material having a lower content of active substance the non-tobacco botanical material of the aerosol generating material. In some embodiments, the wrapper may comprise a non-tobacco botanical material that in use releases active substance at lower temperature than the non-tobacco botanical material of the aerosol generating material.

[0035] In some embodiments, the wrapper comprises a non-tobacco botanical material and the aerosol generating material comprises a different botanical material, which may be a tobacco or non-tobacco botanical material.

[0036] In some embodiments, the wrapper comprises a tobacco botanical material, which may be a reconstituted tobacco material, and the aerosol generating material comprises a different botanical material, which may be a non-tobacco botanical material.

[0037] In some embodiments, the aerosol generating material may comprise an active substance. In some embodiments, the active substance may comprise a nutraceutical, nootropic, and / or psychoactive. In some embodiments, the active substance may comprise caffeine, taurine, theine, vitamins such as B6 or B12 or C, melatonin, cannabinoids. In some embodiments, the aerosol generating material may comprise nicotine or a nicotine salt. In some embodiments, the aerosol generating material may comprise nicotine or a nicotine salt in an amount of up to 3%, by weight. In some embodiments, the aerosol generating material may further comprise an acid. In some embodiments, the aerosol generating material may comprise an acid in an amount of from about 0.1% to about 5% by weight. In some embodiments, the acid may comprise one or more acids selected from lactic acid, benzoic acid, citric acid, levulinic acid, 2-methylbutyric acid, and 2-methylvaleric acid.

[0038] In some embodiments, the aerosol generating material may comprise an aerosol forming material. In some embodiments, the aerosol generating material may comprise the aerosol forming material in an amount of 10-30% on a dry weight basis. In some embodiments, the aerosol generating material may comprise the aerosol forming material in an amount of 12-25% or 15-20% on a dry weight basis. In some embodiments, the aerosol forming material may comprise glycerol, propylene glycol, or a mixture of glycerol and propylene glycol. In some embodiments, the aerosol generating material may comprise a thin film material.

[0039] In some embodiments, the article may have a mouthpiece. In some embodiments, the mouthpiece may comprise a mouthpiece body, which may comprise a plug of filter material, wrapped in a plugwrap. In some embodiments, the mouthpiece may be attached to the aerosol generating portion using tipping paper.

[0040] In some embodiments, the article may comprise an aerosol cooling section downstream of the aerosol-generating portion. In some embodiments, the aerosol cooling section may comprise a cavity. In some embodiments, the article may comprise a hollow tubular element at the mouth end.

[0041] In some embodiments, the tipping paper may be coloured. For example, the tipping wrapper may be a brown cork colour resembling tobacco or reconstituted tobacco material.

[0042] In some embodiments, the tipping wrapper may comprise a botanical material comprising an active substance. In some embodiments, the tipping wrapper may comprise the same botanical material as the wrapper of the aerosol generating portion. In some embodiments, the tipping wrapper may comprise the same material as the wrapper of the aerosol generating portion.

[0043] In some embodiments, the tipping wrapper may be ventilated. In some embodiments, the tipping wrapper may be perforated to provide filter ventilation at a level of about or at least 40%, such as 40-65%.

[0044] In some embodiments, the article may comprise a body of material arranged upstream of the aerosol-generating portion. 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 botanical material comprising an active substance. In some embodiments, the body of material may be attached to aerosol generating portion using a connecting wrapper.

[0045] In some embodiments, the connecting wrapper may overlie the length of the aerosol-generating portion. In such embodiments, at least one of the wrapper of the aerosol generating material and the connecting wrapper may comprise a botanical material comprising an active substance.

[0046] In some embodiments, the connecting wrapper may overlie only a portion of the length of the aerosol-generating portion. In such embodiments, the wrapper of the aerosol generating material, and optionally also the connecting wrapper, comprises a botanical material comprising an active substance.

[0047] In accordance with embodiments of the invention, in a second aspect there is provided a method of manufacturing an article according to the first aspect, the method comprising wrapping an aerosol generating material with a wrapper to form an aerosol generating portion, wherein the wrapper comprises a botanical material comprising an active substance. The method may comprise forming an aerosol generating portion by wrapping a body of aerosol generating material with a wrapper comprising a botanical material comprising an active substance.

[0048] In some embodiments the method may comprise: (a) forming an aerosol generating portion by wrapping a body of aerosol generating material with a wrapper comprising a botanical material comprising an active substance;

[0049] (b) providing a mouthpiece rod comprising first and second ends;

[0050] (c) positioning the aerosol generating portion at the first end of the mouthpiece rod; and

[0051] (d) connecting the aerosol generating portion to the mouthpiece rod by wrapping a tipping paper around the mouthpiece rod and at least a part of the length of the aerosol generating portion. In some embodiments, the method may comprise:

[0052] (a) forming each of first and second aerosol generating portions by wrapping a body of aerosol generating material with a wrapper comprising a botanical material comprising an active substance;

[0053] (b) providing a mouthpiece rod comprising first and second ends; c positioning the first aerosol generating portion at the first end of the mouthpiece rod;

[0054] (d) positioning the second aerosol generating portion at the second end of the mouthpiece rod;

[0055] (e) connecting the first and second aerosol generating portions to the mouthpiece rod by wrapping a tipping paper around the mouthpiece rod and at least a part of the length of each of the first and second aerosol generating portions; and

[0056] (f) cutting the mouthpiece rod at a position about half-way along its length, so as to form first and second substantially identical articles.

[0057] Forming each of the first and second aerosol generating portions may comprise wrapping a single body of aerosol generating material with a wrapper, and cutting the wrapped aerosol generating material, so as to form first and second aerosol generating portions, which may be substantially identical.

[0058] In accordance with embodiments of the invention, in a third aspect there is provided an article for use in a non-combustible aerosol provision system, the article manufactured according to the second aspect.

[0059] In accordance with embodiments of the invention, in a fourth aspect there is provided a system comprising an article as set out in the first or third aspects and a heating device configured to heat the aerosol generating portion of the article.

[0060] In some embodiments, the heating device may comprise a cavity arranged to receive the aerosol generating portion of the article and to heat the external surface of the aerosol generating portion.

[0061] In some embodiments, the heating device may comprise a cavity comprising an internal surface arranged contact the longitudinal circumferential surface of the aerosol generating portion to heat the wrapper of the aerosol generating portion to generate an aerosol comprising active substance from the wrapper.

[0062] In some embodiments, the heating device may be arranged to heat the aerosol generating portion to a temperature of between about 200 °C and 300 °C.

[0063] In some embodiments, the heating device may be arranged to receive the aerosol generating portion and to heat the wrapper of the aerosol generating portion to generate an aerosol comprising active substance from the wrapper.

[0064] In some embodiments, the heating device may be arranged to receive the aerosol generating portion and to heat the aerosol generating portion to generate an aerosol comprising active substance from the wrapper before an aerosol comprising active substance is generated from the aerosol generating material.

[0065] In some embodiments, the system may be arranged to heat the aerosol generating portion to generate an aerosol from the wrapper of the aerosol generating portion, wherein in use, the aerosol composition of the initial puff is different to the aerosol composition of the initial puff produced using an article that does not comprise a wrapper of the aerosol generating portion that comprises a botanical material comprising an active substance.

[0066] In some embodiments, the system may be arranged to heat the aerosol generating portion to generate an aerosol from both the wrapper and the aerosol generating material of the aerosol generating portion, wherein the aerosol from the wrapper may be perceived by the user before the aerosol from the aerosol generating material. Brief Description of the Drawings

[0067] Embodiments of the invention will now be described, by way of example only, with reference to the accompanying drawings, in which:

[0068] Figure la is a schematic perspective view of an article 1 for use with a noncombustible aerosol provision device, the article including an aerosol generating portion comprising aerosol generating material wrapped in a wrapper;

[0069] Figure la is a cross sectional view of the aerosol generating portion of the article shown in Figure la, at the position indicted as A-A';

[0070] Figure 2 is a side-on cross-sectional view of an article 1' for use with a noncombustible aerosol provision device, the article including an aerosol generating portion comprising aerosol generating material wrapped in a wrapper;

[0071] Figure 3 is a side-on cross-sectional view of an article 1" for use with a noncombustible aerosol provision device, the article including an aerosol generating portion comprising aerosol generating material wrapped in a wrapper;

[0072] Figure 4 is a perspective illustration of a non-combustible aerosol provision device for generating aerosol from the aerosol generating portion of the articles 1, 1', and / or 1" of Figures la, 2, and 3;

[0073] Figure 5 illustrates the device of Figure 4 with the outer cover removed and without an article present;

[0074] Figure 6 is a side view of the device of Figure 4 in partial cross-section; Figure 7 is an exploded view of the device of Figure 4, with the outer cover omitted;

[0075] Figure 8A is a cross sectional view of a portion of the device of Figure 4;

[0076] Figure 8B is a close-up illustration of a region of the device of Figure 8A; and

[0077] Figure 9 is a flow diagram illustrating a method of manufacturing an article for use with a non-combustible aerosol provision device.

[0078] Detailed Description In the figures described herein, like reference numerals are used to illustrate equivalent features, articles or components.

[0079] Embodiment of Figures la and lb Figure la shows an article 1 for use in an aerosol provision system. The article 1 may be used with a non-combustible aerosol provision device such as, for example, the device shown in Figures 4-8, to form a non-combustible aerosol provision system. The article 1 comprises an aerosol-generating portion 17, in the present case comprising a cylindrical rod of aerosol generating material 3, which may also be referred to herein as aerosol generating material, and a wrapper 10. The rod of aerosol generating material 3 is circumscribed by the wrapper 10, as shown in cross-section in Figure lb. A mouthpiece 2 is attached to one end of the aerosol generating portion 17.

[0080] In use, the article 1 may be inserted into a non-combustible aerosol provision device such as the device 100 described with reference to Figures 4-8. When the article 1 is inserted into the non-combustible aerosol provision device at least a portion of the mouthpiece 2 of the article 1 protrudes from the device and can be placed between the user's lips. As shown, for example, in Figure 8, the article 1 (labelled as 110 in Figure 8) is received within a cavity of the device which is arranged to heat the article. The article and device are dimensioned so that the outer surface 18 of the aerosolgenerating portion 17 of the article contacts an inner surface of the device, thereby optimising the efficiency with which the device heats the aerosol generating material 3 of the article. As it is heated, the aerosol generating material 3 generates an aerosol which may be drawn along the length of the article 1 and through the mouthpiece 2 by the user.

[0081] Thus, the aerosol-generating material of the article is heated through the circumferential outer surface 18 of the aerosol generating portion of the article shown in Figure lb. In existing articles, the level of aerosol, and consequently, the level of active substance, provided to the user in the first seconds (or puffs) has been found to be lower than the level that is subsequently provided after a short duration of use of the article by the user. The inventors have found that this initial reduced level of aerosol is due to a delay in the aerosol-generating portion of the article reaching an aerosol-generating temperature, as a result of the aerosol generating portion being heated from the outside, through the longitudinal surface. The inventors have found that the level of active substance provided to the user in the first seconds (or puffs) may be increased using a wrapper 10 comprising botanical material comprising an active substance around the aerosol generating portion 3. In use, when the article 1 is inserted into the non-combustible aerosol provision device it is the wrapper 10 that is the closest part of the article to the heater of the device. Thus, the wrapper 10 more quickly reaches an aerosol generating temperature than the aerosol generating material 3, and provides active substance to the user before aerosol comprising active substance may be provided by the aerosol generating material. Thus, aerosol generated from the wrapper may be perceived by the user before the aerosol generated from the aerosol generating material.

[0082] The invention is, in part, based on the surprising finding that a significant level of aerosol, and consequently active substance, may be generated from the wrapper and perceived by the user, even though the wrapper material is heated to a much lower temperature than in products that are arranged to generate an aerosol by combustion. Moreover, the inventors have found that satisfactory levels of aerosol and active substance may be generated from the wrapper even when only very low levels of aerosol forming material is present in the wrapper. The requirement for little or no aerosol forming material in the wrapper has been found to provide significant advantages in relation to the handling of the wrapper and manufacture of the article.

[0083] In the embodiment shown in Figure la, the aerosol generating material 3 comprises tobacco material and the wrapper 10 comprises reconstituted tobacco comprising nicotine. Thus, in the embodiment shown, when the article 1 is used in a noncombustible aerosol provision device, such as the device shown in Figures 4-8, in the first seconds (or puffs), active substance comprising nicotine is provided to the user from the wrapper, which, being in contact with the inner surface of the device, is heated rapidly. Subsequently, after a short delay as the aerosol generating material, comprising tobacco material, inside the article is heated to an aerosolgenerating temperature, this material becomes the predominant source of the active substance that is provided to the user. In the embodiment shown, the aerosol generating material 3 is a blend comprising tobacco lamina, referred to as "Dark Tobacco".

[0084] As discussed in more detail below, any suitable material may be used as the 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 consist of or comprise a tobacco material. In some embodiments, the aerosol generating material may consist of or comprise a non-tobacco material, such as a non-tobacco botanical material, comprising an active substance.

[0085] The aerosol generating material may comprise an aerosol forming material in a total amount between 10% and 30% by weight on a dry weight basis. In some embodiments, the aerosol generating material may comprise an aerosol forming material in a total amount from 12% to 25% by weight, such as, for instance 15% to 20% by weight. References to composition by weight herein are to dry weight basis.

[0086] In some embodiments, for example, the aerosol generating 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% by weight, up to 70% by weight, or up to 60% by weight, such as 5-55% by weight, or 10-50% by weight. In such embodiments, the second material may comprise a lamina material having an aerosol forming material content of less than 5% by weight, less than 3% by weight, or having essentially no aerosol forming material.

[0087] Despite the significant role of the wrapper 10 of the disclosed article in the delivery of active substance to the user, the inventors have surprisingly found that it may be advantageous, in terms of active substance delivery, handling, and manufacturing, to use a wrapper of the rod of aerosol generating material that comprises little or no aerosol forming material. Thus, in some embodiments, the wrapper of the rod of aerosol generating material comprises aerosol forming material in an amount less than 5% by weight, and preferably less than 3% by weight. Preferably, the wrapper of the rod of aerosol generating material comprises less than 1% aerosol forming material, and more preferably, no aerosol forming material.

[0088] The wrapper 10 of the rod of aerosol generating material comprises a botanical material comprising an active substance. The wrapper may comprise any botanical material, and in the embodiment shown in Figure la, the botanical material comprises tobacco material. Botanical materials and active substances are discussed in detail below. In the embodiment shown in Figure la, the wrapper comprises reconstituted tobacco material. In other embodiments, the wrapper may comprise other botanical materials.

[0089] The tobacco content of the reconstituted tobacco material in the embodiment shown is 30%. In other embodiments, the reconstituted tobacco material may comprise tobacco material in an amount of at least 10%, such as at least 15%, at least 20%, or at least 25%.

[0090] In the embodiment shown in Figure la, the wrapper 10 of the rod of aerosol generating material is preferably a single-layered wrapper. The use of a single layered wrapper advantageously minimises any insulating effect of the wrapper on the heating of the aerosol generating material.

[0091] The wrapper 10 of the rod of aerosol generating material may have a porosity of 3- 65 CORESTA. In particular, the use of a single layered wrapper with a porosity in this range 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. The wrapper 10 of the rod of aerosol generating material may have a relatively low basis weight. This has been found to minimise insulation of the aerosolisable material. In some embodiments, the wrapper 10 of the rod of aerosol generating material may have a basis weight of between about 25 g / m2(grams per square metre) and about 60 g / m2, between about 30 g / m2and 50 g / m2, or between about 35 g / m2and 45 g / m2. In preferred embodiments, the wrapper 10 may have a basis weight of less than about 42 g / m2, or less than about 40 g / m2. Preferably, the wrapper may have a basis weight of about 39 g / m2. The wrapper 10 of the rod of aerosol generating material may have a tensile strength of between 5 N / 15mm and 15 N / 15mm. In some embodiments, the tensile strength of the wrapper 10 may be between 7 N / 15mm and 14 N / 15mm, such as between 10 N / 15mm and 13 N / 15mm. In preferred embodiments, the tensile strength of the wrapper 10 may be about 12 N / 15mm. The tensile strength of the wrapper may be determined in accordance with the test method T 494.

[0092] The wrapper 10 of the rod of aerosol generating material may have a moisture content of between 5% and 15%. In some embodiments, the moisture content of the wrapper 10 may be between 6% and 13%, such as between 7% and 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 is preferably about 9%.

[0093] In the article 1 shown in Figure la a mouthpiece 2 is axially aligned with the 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, circumscribed by a plug wrap 7. Suitable filter materials are discussed in more detail below.

[0094] In the embodiment shown, the rod of aerosol generating material 3 has a length of about 34 mm and the mouthpiece has a length of about 41 mm. Any other suitable lengths may be used, however, for the rod of aerosol generating material 3 and / or the mouthpiece 2. Generally, the length of the rod of aerosol generating material and / or the mouthpiece, is determined by the arrangement of the device, and in particular, by the size and length of the heater cavity of the device. In the present example, the article 1 has an outer circumference of about 21 mm (i.e. the article is in the demi-slim format). Any of the articles described herein can be provided in any of the described formats, for instance having an outer circumference of between 15mm and 25mm. A mouthpiece wrapper 5, also described herein as a tipping wrapper 5, is wrapped around the full length of the mouthpiece 2 and an adjacent portion of the rod of aerosol generating material 3 and has an adhesive on its inner surface to connect the mouthpiece 2 and rod 3.

[0095] In the present example, the tipping wrapper 5 extends 5 mm over the rod of aerosol generating material 3, and so the tipping paper extends about 46 mm along the article from the mouth end. In other embodiments, the tipping paper may extend between 3 mm and 10 mm over the rod 3, such as between 4 mm and 6 mm, to provide a secure attachment between the mouthpiece 2 and rod 3. In some embodiments, the tipping wrapper 5 is coloured. For example, in some embodiments, the tipping wrapper may have a brown cork colour, to resemble tobacco material or reconstituted tobacco material.

[0096] In some embodiments, the tipping wrapper 5 comprises paper. In some embodiments, the tipping wrapper 5 comprises botanical material, such as botanical material comprising an active substance. In some embodiments, the tipping wrapper 5 comprises the same material as the wrapper 10 of the rod of aerosol generating material. In some embodiments, the tipping wrapper 5 comprises reconstituted tobacco material. In some embodiments, the tipping wrapper 5 comprises tobacco leaf.

[0097] The tipping wrapper 5 can have a basis weight which is higher than the basis weight of plug wraps used in the article 1, for instance a basis weight of 40 g / m2to 80 g / m2, more preferably between 50 g / m2and 70 g / m2, and in the present example 58 g / m2. These ranges of basis weights have been found to result in tipping wrappers having acceptable tensile strength while being flexible enough to wrap around the article 1 and adhere to itself along a longitudinal lap seam on the paper. In the embodiment of Figure la, the outer circumference of the tipping wrapper 5, once wrapped around the mouthpiece 2, is about 21 mm.

[0098] Perforations 12 may be provided in the tipping wrapper 5 as necessary to provide a desired resistance to draw. The resistance to draw as defined herein is measured according to the ISO standard method (ISO6565:2015). The resistance to draw refers to the 'closed resistance to draw', in which any ventilation zones into the article or body under measurement are closed. Embodiment of Figure 2

[0099] Figure 2 shows a further article 1' for use in an aerosol provision system.

[0100] The article 1' may be used with a non-combustible aerosol provision device, such as the device shown in Figures 4-8, to form a non-combustible aerosol provision system. The article 1' comprises an aerosol-generating portion, which is as defined in relation to the embodiment shown in Figures la and lb. The aerosol-generating portion comprises a rod of aerosol generating material 3 wrapped in a wrapper 10. However, article 1' has a different mouthpiece arrangement 2 compared to article 1.

[0101] Mouthpiece

[0102] The embodiment shown in Figure 2 comprises a mouthpiece at a mouth (i.e. downstream) end of the article 1'.

[0103] In the embodiment shown in Figure 2, the mouthpiece 2 includes a cooling section 13, positioned downstream of the rod of aerosol generating material 3. In the present example, the cooling section 13 is in an abutting relationship 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.

[0104] In the embodiment shown, the mouthpiece 2 also includes a mouthpiece body 14 downstream of the cooling section 13.

[0105] In the embodiment shown, the cooling section 13 defines an air gap within the mouthpiece. The air gap provides a chamber through which heated volatilised components generated by the rod of aerosol generating material 3 flow. The cooling section 13 is hollow to provide a chamber for aerosol accumulation yet rigid enough to withstand axial compressive forces and bending moments that might arise during manufacture and whilst the article 1' is in use. The cooling section 13 provides a physical displacement between the rod of aerosol generating material 3 and downstream portions of the mouthpiece 2.

[0106] Preferably, the internal volume of the cooling section 13 is greater than 130 mm3.

[0107] Providing a cavity of at least this volume has been found to enable the formation of an improved aerosol. Such a cavity size provides sufficient space within the mouthpiece 2 to allow heated volatilised components to cool, therefore allowing the exposure of the aerosol generating material 3 to higher temperatures than would otherwise be possible, since they may result in an aerosol which is too warm. More preferably, the mouthpiece 2 comprises a cavity having an internal volume greater than 170 mm3, and still more preferably greater than 200 mm3, allowing further improvement of the aerosol. In some examples, the internal cavity comprises a volume of between about 130 mm3 and about 700 mm3 and, preferably, between about 160 mm3 and about 700 mm3. For example, the internal cavity may have a volume between about 170 mm3 and about 300 mm3.

[0108] In some embodiments, the length of the cooling section 13 may be between about 10 mm and about 50 mm. In some embodiments, the length of the cooling section 13 may be between about 12 mm and about 40 mm, or between about 15 mm and about 35 mm. In some preferred embodiments, the length of the cooling section 13 is from about 15 mm to about 35 mm, more preferably from about 20 mm to about 30 mm, even more preferably from about 23 to about 27 mm, most preferably about 25 mm. In some embodiments, the cooling section 13 is formed from a plurality of layers of paper which are parallel wound, with butted seams, to form a hollow tube. In the present example, first and second paper layers are provided in a two-ply tube, although in other examples 3, 4 or more paper layers can be used forming 3, 4 or more ply tubes. Other constructions can be used, such as spirally wound layers of paper, cardboard tubes, tubes formed using a papier-mache type process, moulded or extruded plastic tubes or similar.

[0109] In some embodiments, the cooling section 13 preferably has a wall thickness of at least about 50 pm and up to about 1 mm, preferably between 100 pm and 500 pm and more preferably between 100 pm and 150 pm. In the present example, the cooling section 13 has a wall thickness of about 150 pm. The "wall thickness" of the cooling section corresponds to the thickness of the wall of the hollow tube in a radial direction, not including any surrounding material in which the hollow tube may be embedded. The wall thickness of the cooling section 13 may be measured, for example, using a caliper. In the embodiment shown, the cooling section 13 and mouthpiece body 14 are connected by a combining wrapping material 11.

[0110] The article 1' is provided with first and second parallel rows of perforations 12 through the tipping material 5, combining wrapping material 11, and cooling section 13, providing ventilation into the mouthpiece 2 at the cooling section 13. In other embodiments, the ventilation may additionally or alternatively be provided into the mouthpiece 2 at other locations. Generally, perforations 12 in the articles disclosed herein may be formed as laser perforations.

[0111] In the embodiment shown, the mouthpiece body 14 is a filter. However, it should be recognised that in other examples the mouthpiece body 14 may be provided without substantially filtering the inhalant of the article.

[0112] The mouthpiece body 14 is formed from fibrous material in the embodiment shown. In the present example, the mouthpiece body 14 is formed from a sheet material. In the present example, the sheet material is paper. The sheet material may be folded to form the mouthpiece body 14. The mouthpiece body 14 may be formed from a continuous web of sheet material. In the present example, the sheet material is gathered to form the body 14 in a similar manner to a 'crepe filter'.

[0113] In the present example, a tipping material 5 is wrapped around the full length of the mouthpiece 2 and over part of the aerosol-generating portion 17. In this example, the tipping material 5 has an adhesive on its inner surface to connect the mouthpiece 2 and aerosol-generating portion 17. In the present example, the tipping paper 5 extends 5 mm over the aerosol generating portion 17 but it can alternatively extend between 3 mm and 15 mm over the aerosol-generating portion 17, or between 4 mm and 6 mm, to provide a secure attachment between the mouthpiece 3 and aerosol-generating portion 17.

[0114] The pressure drop or difference (also referred to a resistance to draw) across the mouthpiece, for instance the part of the article 1' downstream of the aerosol generating material 3, is preferably less than about 40 mmH20. Such pressure drops have been found to allow sufficient aerosol, including desirable compounds such as flavour compounds, to pass through the mouthpiece 2 to the consumer. More preferably, the pressure drop across the mouthpiece 2 is less than about 32mmH20. These values enable the mouthpiece 2 to slow down the aerosol as it passes through the mouthpiece 2 such that the temperature of the aerosol has time to reduce before reaching the downstream end of the mouthpiece 2.

[0115] The article 1' may have a ventilation level of between 50% and 80% of aerosol drawn through the article, for instance between 65% and 75%. Ventilation at these levels helps to slow down the flow of aerosol drawn through the mouthpiece 2 and thereby enable the aerosol to cool sufficiently before it reaches the downstream end of the mouthpiece 2. The ventilation is provided directly into the mouthpiece 2 of the article 1. In the embodiment shown in Figure 2, the ventilation is also provided into the hollow tubular element 13, which has been found to be particularly beneficial in assisting with the aerosol generation process. The ventilation is provided via first and second parallel rows of perforations 12, in the present case formed as laser perforations, at positions 17.925 mm and 18.625 mm respectively from the downstream, mouth-end of the mouthpiece 2.

[0116] The mouthpiece may comprise a filter material such as filamentary tow material wrapped in a plugwrap material. The filamentary tow material may comprise cellulose acetate fibre tow. The filamentary tow may also be formed using other materials used to form fibres, such as polyvinyl alcohol (PVOH), polylactic acid (PLA), polycaprolactone (PCL), poly(l-4 butanediol succinate) (PBS), poly(butylene adipate-co-terephthalate)(PBAT), starch based materials, cotton, aliphatic polyester materials and polysaccharide polymers or a combination thereof. The filamentary tow may be plasticised with a suitable plasticiser for the tow, such as triacetin where the material is cellulose acetate tow, or the tow may be non-plasticised. The tow can have any suitable specification, such as fibres having a 'Y' shaped or other cross section such as 'X' shaped, filamentary denier values between 2.5 and 15 denier per filament, for example between 8.0 and 11.0 denier per filament and total denier values of 5,000 to 50,000, for example between 10,000 and 40,000.

[0117] Embodiment of Figure 3

[0118] Figure 3 shows a further article 1" for use in an aerosol provision system. Article 1" is substantially the same as articles 1 and 1', and includes a similar aerosol generating portion 17, comprising a similar rod of 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 cooling section 13 that are as described in relation to article 1', but article 1" additionally includes a further section 15 at the mouth end. Features with similar reference numerals are as described in relation to article 1 and / or 1'. The mouthpiece 2 and / or component 4 shown in Figure 2 and described herein may each be used separately or together with the article 1 shown in Figure la, and with other embodiments, as will be apparent to the skilled person.

[0119] The article 1" may be used with a non-combustible aerosol provision device, such as the device shown in Figures 4-8, to form a non-combustible aerosol provision system. The article 1" comprises an aerosol-generating portion 17, which is as defined in relation to the embodiment shown in Figure la. The aerosol-generating portion comprises a rod of aerosol generating material 3 wrapped in a wrapper 10. The article 1" further comprises a component 4 at an upstream end of the article.

[0120] The component 4 includes a body of material 8 wrapped in a component wrapper 6.

[0121] The component 4 is connected to the rod of aerosol generating material 3 by a connecting wrapper 16. The connecting wrapper 16 extends along at least a portion of the length of the aerosol generating portion 17 of the article. Such a double wrapped rod of aerosol generating material has the advantages of improved stiffness and / or rigidity, which can allow a lower density rod of aerosol generating material, and / or lower quantity of aerosol generating material to be used in the article. The present inventors have found, however, that a drawback to the use of a double wrapping layer is that it may insulate the aerosol generating material and increase the delay in the aerosolgenerating portion 17 of the article reaching an aerosol-generating temperature. The use of a wrapper comprising a botanical material comprising an active substance to wrap the aerosol generating material has been found to be particularly advantageous in this arrangement.

[0122] In the embodiment shown, the connecting wrapper 16 circumscribes substantially the entire length of the rod of aerosol generating material 3, such that the rod of aerosol generating material is circumscribed by two wrappers along substantially its entire length. By using a wrapper 10 comprising botanical material comprising an active substance as described herein around the rod of aerosol generating material 3, the inventors have found that in use the level of active substance provided to the user in the first seconds (or puffs) may be increased. The wrapper comprising botanical material comprising an active substance may be used as the wrapper 10 of the rod of aerosol generating material 3 and / or as the connecting wrapper 16.

[0123] Preferably, both the wrapper 10 of the rod of aerosol generating material 3 and the connecting wrapper 16 comprises botanical material comprising an active substance.

[0124] Thus, in use, when the article 1" is inserted into a non-combustible aerosol provision device such as that shown in Figures 4-8, the wrappers 10, 16 are heated more quickly than the aerosol generating material 3. The wrapper or wrappers comprising botanical material comprising an active substance provide active substance to the user before the aerosol generating material.

[0125] In the embodiment shown in Figure 3, the aerosol generating material 3 comprises tobacco material and both the wrapper 10 and the connecting wrapper 16 comprise reconstituted tobacco comprising nicotine. Thus, in the embodiment shown, when the article 1" is used in a non-combustible aerosol provision device, such as the device shown in Figures 4-8, in the first seconds (or puffs), active substance comprising 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 as the aerosol generating material comprising tobacco material inside the article is heated to an aerosol-generating temperature, this material becomes the predominant source of the active substance that is provided to the user. In the embodiment shown, the wrapper 10 comprises a botanical material comprising an active substance, and may be a wrapper as discussed and defined in relation to the embodiment of Figure la.

[0126] In the embodiment shown, the combining wrapper 16 also comprises a botanical material comprising an active substance, and may be a wrapper as defined in relation to the embodiment of Figure la. In some alternative embodiments, the connecting wrapper 16 may be replaced by a shorter connecting wrapper, which circumscribes the component 4 and only extends along a portion of the length of the rod of aerosol generating material 3. For example, the connecting wrapper 16 may extend over the rod of aerosol generating material by about 3 mm to about 10 mm, for instance by about 5 mm. In these embodiments, the wrapper 10 of the rod of aerosol generating material 3 comprises botanical material comprising an active substance. The connecting wrapper 16 may also be a wrapper that comprises botanical material comprising an active substance.

[0127] The aerosol generating material may be as defined in relation to the embodiment of Figure la. In the embodiment shown, the aerosol generating material 3 comprises tobacco. In the embodiment shown, the tobacco material comprises a blend comprising tobacco lamina. In other examples, the aerosol generating material may consist of or comprise a non-tobacco botanical material comprising an active material.

[0128] Generally, in all of the disclosed articles, the aerosol generating material is preferably selected in combination with the wrapper to provide the desired quantity and combination of substances to the user from the wrapper and aerosol generating material when the article is used.

[0129] Distal End Component

[0130] The embodiment shown in Figure 3 comprises a component 4 at an upstream end of the article 1".

[0131] The presence of component 4 at an upstream end of the article may provide several advantages. For instance, the stability of the article, in use, may be improved, by preventing fall-out of aerosol generating material from the upstream end of the article. Where the component 4 comprises a body of material having a resistance to draw between about 5% and 25% of the resistance to draw of the article this can also result in greater consistency of resistance to draw between articles, since the contribution of the rod of aerosol generating material 3 to the overall resistance to draw of the article is relatively less. Advantageously, the relatively high resistance to draw of the component 4 can make the overall resistance to draw of the article less sensitive to variations in the resistance to draw of the rod of aerosol generating material. The component 4 includes 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 the aerosol generating material, comprising a botanical material comprising an active substance. Thus, the component wrapper 9 may comprise botanical material comprising an active substance, which may comprise the same botanical material and / or active substance as the wrapper 10 of the rod of aerosol generating material 3. The component wrapper 9 may comprise a different material to the wrapper 10 of the rod of aerosol generating material 3 but may comprise the same botanical material and / or active substance. In some embodiments, the component wrapper 9 may comprise a different botanical material and / or active substance.

[0132] Alternatively, the wrapper 9 may have a different composition. For example, the component wrapper 9 may be a foil backed paper, a metal foil, or a paper plug wrap. Advantageously, providing an article where the component 4 at the upstream end of the article is circumscribed by a non-combustible material, such as a metal foil, may prevent a user of the article from lighting the article in the manner of a conventional cigarette, where the article is not intended for such use.

[0133] The outer circumference of the wrapper 9 of the component 4 is substantially the same as the outer circumference of the rod of aerosol generating material 3, such that there is a smooth transition between these components. The component 4 is connected to the rod 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, for instance at least 3 kgf / 15mm, or at least 3.5 kgf / 15mm. The tensile strength of the connecting wrapper 16 may be determined in accordance with the test method T 494.

[0134] The connecting wrapper 16 may be a wrapper as defined above in relation to the wrapper 10 of the aerosol generating material, comprising a botanical material comprising an active substance. Thus, the connecting wrapper 16 may comprise botanical material comprising an active substance, which may comprise the same botanical material and / or active substance as the wrapper 10 of the rod of aerosol generating material 3. The connecting wrapper 16 may comprise a different material to the wrapper 10 of the rod of aerosol generating material 3 but may comprise the same botanical material and / or active substance. In some embodiments, the connecting wrapper 16 may comprise a different botanical material and / or active substance. The connecting wrapper 16 and component wrapper 9 may both comprise a botanical material comprising an active substance. The connecting wrapper 16 and component wrapper 9 may both comprise the same botanical material comprising the same active substance, or may comprise a different botanical material and / or different active substance. The connecting wrapper 16 and component wrapper 9 may comprise the same botanical material and / or active substance as the wrapper 10 of the rod of aerosol generating material 3. The connecting wrapper 16 and component wrapper 9 may comprise a different material to the wrapper 10 of the rod of aerosol generating material 3 but may comprise the same botanical material and / or active substance s the wrapper 10. In some embodiments, the connecting wrapper 16 and component wrapper 9 may comprise a different botanical material and / or active substance to the wrapper 10 of the rod of aerosol generating material 3.

[0135] 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 property of the connecting wrapper 16. In other examples, the connecting wrapper 16 may be provided with perforations to increase the material permeability. In some examples, the combined permeability of the rod wrapper 10 and the connecting wrapper 16, together with any intermediate layer of adhesive, is at least 25 Coresta Units, or at least 30 Coresta Units, or at least 50 Coresta Units. The combined permeability of the rod wrapper 10 and the connecting wrapper 16 together with any intermediate layer of adhesive may be determined by breaking down the article to separate the wrapping materials from the rod of aerosol generating material, and measuring the total permeability through the wrapping materials surrounding the rod of aerosol generating material, i.e., the rod wrapper 10, the connecting wrapper 16, and any intermediate layer of adhesive, in accordance with ISO 2965:2019. The average density of the body 8 may be between about 0.1 and about 0.25 mg / mm3. In the present example, the density of the body of 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 / mm3or 0.15 mg / mm3. The density of a body of material can be measured by separating said body from an article and surrounding plug wraps and / or tipping paper, and removing any embedded objects, but including any additives added to the material of the body 8. The density may be calculated as a bulk density based on the weight of the material 8 and any additives added to the material 8, and the overall volume occupied by the material 8. For instance, the overall volume of the body of material 8 measured inside the component wrapper 6. The body of material 8 may comprise a sheet material, such as a plurality of portions of sheet material. The portions of material may be strips of a sheet material. In other examples, the portions of material may comprise sheet material which is not cut into strips, but which is gathered to form the body in a manner similar to that of a 'crepe filter'.

[0136] The sheet material may comprise cellulosic material, such as, for instance, paper sheets, sheets of tobacco material, sheets of non-tobacco botanical material or combinations thereof. The material 8 may comprise low porosity paper. The sheet material may comprise botanical material comprising an active substance, which may or may not be the same material as the wrapper 10 of the rod of aerosol generating material 3. The sheet material may be a different material to the wrapper 10 of the rod of aerosol generating material 3 but may comprise the same botanical material and / or active substance. In some embodiments, the sheet material may comprise a different botanical material and / or active substance.

[0137] In other embodiments, the material 8 may comprise a foil or a foil backed paper, an aerosol-generating film or an aerosol-generating film laminated on a support, for instance a paper material.

[0138] The sheet material may have a basis weight of between about 20 g / m2and about 80 g / m2, or between about 30 g / m2and about 50 g / m2, or between about 36 g / m2and about 45 g / m2, or between about 55 g / m2and about 75 g / m2. Alternatively, or in addition, the sheet material of the plurality of strips can have an uncrimped thickness of between about 50 pm and about 500 pm, between about 50 pm and about 350 pm, between about 60 pm and about 300 pm, or between about 60 pm and about 160 pm. In some embodiments, the body of material is not formed from a sheet material, but from another fibrous material, such as cotton. In some embodiments, aerosol-modifying agent or aerosol former may be added to the material forming the body of material 8. In some embodiments, the body of material 8 includes an aerosol-generating film comprising lactic acid, for instance as described in WO 2021 / 105449. In some embodiments, the body 8 comprises aerosol-former in an amount from 10% to 30% by weight. In other examples, the body of material 8 comprises aerosol former in an amount less than 5% by weight.

[0139] In some embodiments, the body of material 8 comprises a combustion retarding material, for instance a combustion retarding salt and an aerosol-generating film, as described in WO 2020 / 183163 Al.

[0140] In some embodiments, the component 4 has a length of about 6 mm. In alternative embodiments the component 4 may have any length in the range of about 3 mm to about 15 mm, preferably about 4 mm to about 6 mm.

[0141] The body of material 8 may have a resistance to draw of between 1 mml- O and 30 mmHzO, for instance between 5 mml- O and 25 mml- O, or between 10 mml- O and 20 mml- O. Preferably, the body 8 has a resistance to draw of between 0 mmHzO and 20 mmHzO. This resistance to draw can be between 1% and 30% of the resistance to draw across the article, for instance between 5% and 25%, or between 10% and 20%. Advantageously, providing a component 4 having a resistance to draw between 5% and 25% of the resistance to draw across the article at a position upstream of the rod of aerosol generating material 3 reduces the relative contribution of the rod of aerosol generating material to the overall resistance to draw of the article. As a consequence, the overall resistance to draw of the article 1" is less sensitive to variations in the resistance to draw of the rod of aerosol generating material, which may occur due to the organic nature of the tobacco material, and it is also possible to provide a higher level of ventilation into the rod of aerosol generating material whilst keeping the overall resistance to draw through the length of the article 1' at an acceptable level. The resistance to draw of the body 8 is measured according to the ISO standard method (ISO6565:2015). The resistance to draw refers to the 'closed resistance to draw', in which any ventilation zones into the article or body under measurement are closed.

[0142] The body of material 8 can have a weight of from about 5 mg to about 15 mg per mm of length of said body, or between about 8 mg and about 12 mg per mm of length of said body, or about 10 mg per mm of length of said body.

[0143] Mouthpiece

[0144] The embodiment shown in Figure 3 comprises a mouthpiece 2 at a mouth (i.e. downstream) end of the article 1". The mouthpiece 2 is as described in relation to article 1' and shown in Figure 2, but additionally includes a mouth-end section 15.

[0145] In the embodiment shown in Figure 3, the mouthpiece 2 includes a cooling section 13, positioned downstream of the rod of aerosol generating material 3. The cooling section is as defined in relation to the embodiment shown in Figure 2.

[0146] In the present example, the cooling section 13 is in an abutting relationship 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.

[0147] The mouthpiece body 14 is as defined in relation to the embodiment shown in Figures la and 2. In the embodiment shown, the mouthpiece body 14 is a filter. However, it should be recognised that in other examples the mouthpiece body 14 may be provided without substantially filtering the inhalant of the article.

[0148] The hollow tubular element 15 is positioned at the mouth end of the article 1". In the present example, the hollow tubular element 15 is formed from a plurality of layers of paper which are parallel wound, 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 of the means described for the cooling section 13 and may have any wall thickness as described in relation to the cooling section 13.

[0149] 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 from about 5 mm to about 20 mm, more preferably from about 6 mm to about 10 mm, even more preferably from about 6 mm to about 8 mm, most preferably about 6 mm, 7 mm or about 8 mm. In the present example the hollow tubular element 15 has a length of 6 mm.

[0150] In the present example, a tipping material 5 is wrapped around the full length of the mouthpiece 2 and over part of the aerosol-generating portion, and has an adhesive on its inner surface to connect the mouthpiece 2 and rod 3. In the present example, the tipping paper 5 extends 5 mm over the rod of aerosol generating material 2 but it can alternatively extend between 3 mm and 15 mm over the rod 2, or between 4 mm and 6 mm, to provide a secure attachment between the mouthpiece 3 and rod 2.

[0151] Pressure Drop and Ventilation

[0152] The disclosed articles 1, 1', 1" have a pressure drop or difference (also referred to a resistance to draw) across the mouthpiece, for instance the part of the article downstream of the aerosol generating material 3, of less than about 40 mmH20.

[0153] Such pressure drops have been found to allow sufficient aerosol, including desirable compounds such as flavour compounds, to pass through the mouthpiece 2 to the consumer. More preferably, the pressure drop across the mouthpiece 2 is less than about 32mmH20.

[0154] In some embodiments of the disclosed articles 1, 1', 1", particularly improved aerosol has been achieved using a mouthpiece 2 having a pressure drop of less than 31 mmH20, for instance about 29 mmH20, about 28 mmH20 or about 27.5 mmH20. Alternatively, or additionally, the mouthpiece pressure drop can be at least 10 mmH20, preferably at least 15 mmH20 and more preferably at least 20 mmH20. In some embodiments, the mouthpiece pressure drop can be between about 15 mmH20 and 40 mmH20. These values enable the mouthpiece 2 to slow down the aerosol as it passes through the mouthpiece 2 such that the temperature of the aerosol has time to reduce before reaching the downstream end of the mouthpiece 2.

[0155] The articles disclosed herein have a ventilation level of about 75% of the aerosol drawn through the article. In alternative embodiments, the article can have a ventilation level of between 50% and 80% of aerosol drawn through the article, for instance between 65% and 75%. Ventilation at these levels helps to slow down the flow of aerosol drawn through the mouthpiece 2 and thereby enable the aerosol to cool sufficiently before it reaches the downstream end of the mouthpiece 2. The ventilation is provided directly into the mouthpiece 2 of the article 1. In the embodiment shown in Figures 2 and 3, the ventilation is also provided into the hollow tubular element 13, which has been found to be particularly beneficial in assisting with the aerosol generation process. The ventilation is provided via first and second parallel rows of perforations 12, in the present case formed as laser perforations, at positions 17.925 mm and 18.625 mm respectively from the downstream, mouth-end of the mouthpiece 2.

[0156] The mouthpiece may comprise a filter material such as filamentary tow material wrapped in a plugwrap material. The filamentary tow material may comprise cellulose acetate fibre tow. The filamentary tow may also be formed using other materials used to form fibres, such as polyvinyl alcohol (PVOH), polylactic acid (PLA), polycaprolactone (PCL), poly(l-4 butanediol succinate) (PBS), poly(butylene adipate-co-terephthalate)(PBAT), starch based materials, cotton, aliphatic polyester materials and polysaccharide polymers or a combination thereof. The filamentary tow may be plasticised with a suitable plasticiser for the tow, such as triacetin where the material is cellulose acetate tow, or the tow may be non-plasticised. The tow can have any suitable specification, such as fibres having a 'Y' shaped or other cross section such as 'X' shaped, filamentary denier values between 2.5 and 15 denier per filament, for example between 8.0 and 11.0 denier per filament and total denier values of 5,000 to 50,000, for example between 10,000 and 40,000.

[0157] Wrapper Comprising Botanical Material Comprising an Active Substance

[0158] The articles described herein comprise an aerosol generating portion comprising an aerosol generating material 3 wrapped in a wrapper. The wrapper comprises a botanical material comprising an active substance.

[0159] The inventors have surprisingly found that an advantage of the wrapper of the disclosed articles is that it allows the use of cooler temperatures with the article, than has previously been possible and / or the heating of the aerosol generating material more slowly without reduced levels of active substance in the aerosol. This leads to energy efficiency savings and can also be advantageous because if the aerosol generating material is heated to a high temperature quickly it can cause problems with "water flash".

[0160] To maximise these potential advantages, in some embodiments, the system may be arranged to heat the article to an initial first temperature in which aerosol is released from the wrapper, and subsequently to heat the article to a second temperature, that is higher than the first temperature, at which the aerosol generating material is heated to generate an aerosol. Generally, the wrapper of the rod of aerosol generating material may be a wrapper as defined above in relation to the wrapper 10 of the embodiments shown in Figures 1-3.

[0161] The wrapper may comprise a thin film as defined herein. In other embodiments, the wrapper does not comprise a thin film.

[0162] The wrapper is not a conventional paper wrapper and preferably does not consist of or comprise wood pulp material. In some embodiments, the wrapper does not comprise cellulose fibre.

[0163] Excluding combining wrappers, such as tipping wrapper 5 and connecting wrapper 16, the wrapper 10 of the rod of aerosol generating material is preferably a single layered wrapper. The wrapper may in general have any level of porosity. For example, the wrapper may have a porosity of 3-65 CORESTA units. Preferably, the wrapper has a porosity of 10-55, 15-50 or 20-47 CORESTA units. The use of a wrapper comprising a botanical material having this level of porosity has been found to provide various advantages, particularly in terms of aerosol and flavour delivery.

[0164] Further aerosol delivery advantages have been surprisingly found to be 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%. The wrapper 10 of the rod of aerosol generating material may have a tensile strength of between 5 N / 15mm and 15 N / 15mm. In some embodiments, the tensile strength of the wrapper 10 may be between 7 N / 15mm and 14 N / 15mm, such as between 10 N / 15mm and 13 N / 15mm. Preferably, the tensile strength of the wrapper 10 may be about 12 N / 15mm. The tensile strength of the wrapper may be determined in accordance with the test method T 494. Preferably the wrapper has a relatively low basis weight. In some embodiments, the wrapper 10 of the rod of aerosol generating material may have a basis weight of between about 25 g / m2(grams per square metre) and about 60 g / m2, between about 30 g / m2and 50 g / m2, or between about 35 g / m2and 45 g / m2. Preferably, the wrapper 10 may have a basis weight of less than about 42 g / m2, or less than about 40 g / m2. Preferably, the wrapper may have a basis weight of about 39 g / m2.

[0165] The wrapper may include inorganic filler material in an amount of 11.5-15.5%.

[0166] Preferably, the wrapper comprises inorganic filler material in an amount of 12-15%, such as 13, 13.3, 13.5, 13.7, or 14%. Most preferably, the wrapper comprises inorganic filler material in an amount of 13.5%. These amounts are inclusive of the amount naturally occurring in tobacco.

[0167] Any suitable inorganic filler may be used. Preferably, the inorganic filler is calcium carbonate.

[0168] The wrapper may be prepared by methods which are known to those skilled in the art for preparing wrappers comprising botanical material such as reconstituted tobacco sheets.

[0169] Botanical Material

[0170] As used herein, the term "botanical material" refers to any material derived from a plant, and includes any material derived from any plant part including, but not limited to, leaves, bark, buds, fibres, stems, roots, seeds, flowers, fruits, pollen, husk, and / or shells.

[0171] The botanical material is a material that naturally contains or comprises an active substance. In some embodiments, the wrapper may consist of or comprise a single botanical material comprising a single active substance. In some embodiments, the wrapper may consist of or comprise a single botanical material comprising a plurality of different active substances. In some embodiments, the wrapper may consist of or comprise a combination of botanical materials. The botanical materials may each comprise a different active substance. In some embodiments, the botanical material may consist of or comprise tobacco.

[0172] The wrapper may comprise 20-90% tobacco. For example, the wrapper may comprise 25-80% or 30-70% tobacco.

[0173] In some embodiments, the wrapper may consist of or comprise reconstituted tobacco material. In such embodiments, the wrapper may include at least 30% tobacco, such as 40-80% or 50-70% tobacco. The tobacco may be dark air-cured. In some embodiments, the botanical material may consist of or comprise tobacco material. Tobacco material is any material from a plant from the genus Nicotiana.

[0174] In some embodiments, the botanical material may be a reconstituted botanical material.

[0175] In some embodiments, the botanical material may consist of or comprise reconstituted tobacco material.

[0176] In some embodiments, the botanical material may contain no tobacco material and as such may be referred to as "non-tobacco botanical material".

[0177] In some embodiments, the botanical material may consist of or comprise a nontobacco botanical material. In some embodiments, the non-tobacco botanical material may consist of or comprise mint, chamomile, eucalyptus, lavender, ginger, rooibos, cinnamon, star anise, cocoa, hemp, fennel, and / or clove material. In some embodiments, the non-tobacco botanical material may consist of or comprise cannabis.

[0178] In some embodiments, the wrapper may consist of or comprise reconstituted non- tobacco botanical material.

[0179] In some embodiments, the botanical material may comprise a combination of botanical materials, such as a combination of two or more, such as two, three, four, five, or six, botanical materials. The combination may include tobacco and / or non- tobacco botanical materials. Non-tobacco botanical material is any material derived from any plant that is not a plant from the genus Nicotiana. Thus, non-tobacco botanical material includes, but is not limited to, eucalyptus, star anise, hemp, cocoa, cannabis, fennel, lemongrass, peppermint, spearmint, rooibos, chamomile, flax, ginger, ginkgo biloba, hazel, hibiscus, laurel, licorice (liquorice), matcha, mate, orange skin, papaya, rose, sage, tea such as green tea or black tea, thyme, cinnamon, coffee, aniseed (anise), basil, bay leaves, cardamom, coriander, cumin, nutmeg, oregano, paprika, rosemary, saffron, clove, lemon peel, mint, juniper, elderflower, vanilla, Wintergreen, beefsteak plant, curcuma, turmeric, sandalwood, cilantro, bergamot, orange blossom, myrtle, cassis, valerian, pimento, mace, damien, marjoram, olive, lemon balm, lemon basil, chive, carvi, verbena, tarragon, geranium, mulberry, ginseng, theanine, theacrine, maca, ashwagandha, damiana, guarana, chlorophyll, baobab, or any combination thereof. The non-tobacco botanical material may be a material derived from species which are members of the Asteraceae family, the Fabaceae family, the Myrtaceae family, Apiaceae family, Camellia taliensis, the Solanaceae family, the Brassicaceae family, the Caricaceae family, the Asclepiadaceae family, the Equisetaceae family, the Oleaceae family, the Lamiaceae family, and tisanes. The non-tobacco botanical material may be selected from the Matricaria species, such as chamomile; the Pimpinella anisum species, such as anise; the Foeniculum vulgare species, such as fennel; jasmine; lavender; cloves; eucalyptus, and the species Aspalathus linearis, such as rooibos. The botanical material may be an aromatic botanical material. In this context, "aromatic" refers to any material having a distinctive smell. Thus, an aromatic botanical material is any material that is capable of being identified by its aroma. The botanical material may comprise or consist of an active substance that is a flavourant, and thus the botanical material may be a flavourant botanical material. The botanical material is preferably an aromatic flavourant botanical material.

[0180] In some embodiments, the botanical material may comprise favourable aroma properties for use in a non-combustible aerosol provision system. For example, the botanical material may deliver an aerosol which is considered favourable by a consumer of tobacco-based delivery systems when used in a non-combustible aerosol provision system. For example, the botanical material may comprise an active substance that is an active substance found in tobacco, such as nicotine or a tobacco flavourant.

[0181] In some embodiments, the botanical material may comprise or consist of mint, chamomile, eucalyptus, lavender, ginger, rooibos, cinnamon, star anise, cocoa, hemp, fennel, and / or clove material.

[0182] 'Mint', 'mint material', and 'mint botanical material' refers to any material derived from a plant from the genus Mentha in the family Lamiaceae. Any plant from this genus may be referred to as a 'mint plant'. The mint botanical material may comprise or consist of material from the following mint varieties: Mentha arventis, Mentha c.v., Mentha niliaca, Mentha piperita, Mentha piperita citrata c.v., Mentha piperita c.v, Mentha spicata crispa, Mentha cardifolia, Mentha longifolia, Mentha suaveolens variegata, Mentha pulegium, Mentha spicata c.v. and Mentha suaveolens. The mint botanical material may comprise material from any part of a mint plant, and preferably, the mint botanical material may comprise or consist of mint leaf and / or mint stem material. In terms of an active substance, the mint botanical material may comprise menthol. 'Chamomile', 'chamomile material', and 'chamomile botanical material' refers to any material derived from a plant from the genus Asteraceae, which contains various daisy-like plants. Any plant or tree from this genus may be referred to as a 'chamomile plant'. The chamomile botanical material may comprise material from any part of a chamomile plant, and preferably, the chamomile botanical material may comprise or consist of chamomile flower material. In terms of an active substance, the chamomile botanical material may comprise, for example, apigenin, quercetin, patuletin, and / or luteolin.

[0183] 'Eucalyptus', 'eucalyptus material', and 'eucalyptus botanical material' refers to any material derived from a plant from the genus Eucalyptus, which contains various species of flowering trees, shrubs or mallees in the myrtle family, Myrtaceae. Any plant or tree from this genus may be referred to as a 'eucalyptus plant' or 'eucalyptus tree'. The eucalyptus botanical material may comprise material from any part of a eucalyptus tree, and preferably, the eucalyptus botanical material may comprise or consist of eucalyptus leaf and / or eucalyptus stem and / or eucalyptus flower material. In terms of an active substance, the eucalyptus botanical material may comprise cineole. 'Lavender', 'lavender material', and 'lavender botanical material' refers to any material derived from a plant from the genus Lavandula in the family Lamiaceae. Any plant from this genus may be referred to as a 'lavender plant'. The lavender botanical material may comprise material from any part of a lavender plant, and preferably, the lavender botanical material may comprise or consist of lavender flower and / or lavender bud material. In terms of an active substance, the lavender botanical material may comprise, for example, limonene, linalool, linalyl acetate, and / or camphor.

[0184] 'Ginger', 'ginger material', and 'ginger botanical material' refers to any material derived from a plant from the genus Zingiber in the family Zingiberaceae. Any plant from this genus may be referred to as a 'ginger plant'. Preferably, the ginger plant is Zingiber officinale, which is a flowering plant whose rhizome, known as ginger root or ginger, is widely used as a spice. The ginger botanical material may comprise material from any part of a ginger plant, and preferably, the ginger botanical material may comprise or consist of ginger root / rhizome material. In terms of an active substance, the ginger botanical material may comprise, for example, sesquiterpene hydrocarbons, gingerol, shogaol, and / or oleoresin.

[0185] 'Rooibos, 'rooibos material', and 'rooibos botanical material' refers to any material derived from a plant from the genus Aspalathus, and in particular, Aspalathus linearis, in the family Fabaceae. Preferably, the rooibos plant is Aspalathus linearis, which is a bush whose leaves are widely used to make tea, known as bush tea, red tea, or redbush tea. The rooibos botanical material may comprise material from any part of a rooibos plant, and preferably, the rooibos botanical material may comprise or consist of rooibos leaf material. In terms of an active substance, the rooibos botanical material may comprise vitamin C, and / or polyphenols, including flavanols, flavones, flavanones, dihydrochalcones, aspalathin, and / or nothofagin. The rooibos botanical material may additionally or alternatively comprise benzoic and / or cinnamic acids.

[0186] 'Cinnamon', 'cinnamon material', and 'cinnamon botanical material' refers to any material derived from a plant from the genus Cinnamomum in the family Lauraceae. Cinnamon is a spice obtained from the inner bark of various tree species from this genus, and any tree from this genus may be referred to as a 'cinnamon plant' or 'cinnamon tree'. The cinnamon botanical material may comprise material from any part of a cinnamon plant, and preferably, the cinnamon botanical material may comprise or consist of cinnamon bark material. In terms of an active substance, the cinnamon botanical material may comprise, for example cinnamaldehyde, trans-cinnamaldehyde (cin), procyanidins, and / or catechins.

[0187] 'Star anise', 'star anise material', and 'star anise botanical material' refers to any material derived from a plant from the species Illicium verum. Star anise is a spice obtained from the fruit of the plant, and the star anise botanical material may comprise or consist of star anise fruit material. In terms of an active substance, the star anise botanical material may comprise anethole.

[0188] 'Cocoa', 'cocoa material', and 'cocoa botanical material' refers to any material derived from a plant from the species Theobroma cacao. Cocoa is obtained from the seed of the plant. The cocoa botanical material may comprise or consist of cocoa seed material. In terms of an active substance, the cocoa botanical material may comprise an alkaloid, which may be theobromine, also known as xantheose.

[0189] 'Hemp, 'hemp material', and 'hemp botanical material' refers to a botanical class of Cannabis sativa cultivars grown specifically for industrial or medicinal use. The hemp botanical material may comprise material from any part of a hemp plant, and preferably, the hemp botanical material may comprise or consist of hemp seed, leaf, and / or fibre material. In terms of an active substance, the hemp botanical material may comprise tetrahydrocannabinol (THC) and / or cannabidiol (CBD). 'Fennel', 'fennel material', and 'fennel botanical material' refers to any material derived from a plant from the species Foeniculum vulgare. Fennel is a highly flavorful herb comprising volatile oils imparting mixed aromas. The fennel botanical material may comprise material from any part of a fennel plant, and preferably, the fennel botanical material may comprise or consist of fennel bulb, seed, umbel, and / or flower material. In terms of an active substance, the fennel botanical material may comprise trans-anethole, estragole, fenchone, limonene, l-octen-3- ol, and / or polyphenols, such as rosmarinic acid and / or luteolin.

[0190] 'Clove', 'clove material', and 'clove botanical material' refers to any material derived from a plant from the species Syzygium aromaticum, which may be referred to as a

[0191] 'clove plant' or 'clove tree'. Clove material for use in the disclosed process may be derived from the bud of the clove plant material. The clove material may include, but is not limited to, the following type of clove material: Jawa, Bali, Manado, and / or Manado second grade. The use of clove material may provide a distinctive flavour and sensorial experience for the end user. Cloves are known to have sensory effects including aroma, spicy, numbing, crackling, and throat soothing features among others. In terms of an active substance, the clove botanical material may comprise eugenol.

[0192] In some embodiments, the botanical material may comprise material from seedproducing plants which do not develop persistent woody tissue and which are often valued for their medicinal or sensorial characteristics.

[0193] In some embodiments, the botanical material may produce an aerosol, when heated, with a sensorial experience that is comparable to that provided by a conventional combustible product, such as a cigarette.

[0194] Active Substance

[0195] The botanical material of the wrapper of the article for use with the noncombustible aerosol provision device comprises an active substance. An "active substance" may also be referred to as an "active material" herein.

[0196] The active substance may create a physiological or sensory effect on the human body. Example active substances are flavourants and sensate materials. A sensate material creates an organoleptic sensation that can be perceived through the senses, such as a cool or sour sensation.

[0197] In some embodiments, the active substance may be a physiologically active material. A "physiologically active material" as used herein refers to a material intended to achieve or enhance a physiological response. The active substance may for example be selected from nutraceuticals, nootropics, psychoactives.

[0198] The active substance may be derived from a botanical material as defined herein.

[0199] For example, the active substance may be a constituent, derivative or extract of a botanical material. In some embodiments, the active substance is derived from tobacco.

[0200] In some embodiments, the active substance comprises nicotine. In some embodiments, the active substance is derived from cannabis.

[0201] In some embodiments, the active substance comprises one or more cannabinoids or terpenes.

[0202] In some embodiments, the active substance is derived from a botanical material selected from mint, chamomile, eucalyptus, lavender, ginger, rooibos, cinnamon, star anise, cocoa, hemp, fennel, and / or clove material. The active substance may be any one or more of those listed herein in relation to these botanical materials.

[0203] In some embodiments, the active substance in the wrapper is derived from a botanical material that is the same botanical material that is used in the wrapper. The active substance may be naturally present in the botanical material. For example, the active substance may be nicotine that is naturally present in tobacco botanical material.

[0204] The active substance may be added to the botanical material. For example, the active substance may be added to the botanical material before, during or after the production of the wrapper. The active substance may be added to the botanical material by any suitable method such as spraying, dipping, or coating.

[0205] The active substance may be a naturally occurring substance.

[0206] The active substance may be synthetic and / or chemically produced.

[0207] In some embodiments, the active substance may comprise nicotine, caffeine, taurine, theine, vitamins such as B6 or B12 or C, melatonin, cannabinoids, or constituents, derivatives, or combinations thereof.

[0208] The active material may comprise nicotine (optionally contained in tobacco or a tobacco derivative) or one or more other non-olfactory physiologically active materials. As used herein, the term "non-olfactory physiologically active material" refers to a material which is included in the aerosol generating material in order to achieve a physiological response other than olfactory perception. In some embodiments, the active substance may comprise a nicotine salt. The nicotine salt may be nicotine benzoate, nicotine levulinate, nicotine citrate, nicotine lactate, or combinations thereof. In some embodiments, the active substance may comprise nicotine. Nicotine may be included in the material in a final amount of about 0.1% to about 5% by weight of the material. For example, the total amount of nicotine in the material may be from about 0.2% to about 4%, from about 0.5% to about 3, such as about 1% or about 2% by weight of the material.

[0209] The nicotine content may be determined by any suitable method, such as, for example, using gas chromatography, or any other method that is used in the art to quantify the level of secondary alkaloids in tobacco. In some embodiments, including some embodiments in which the active substance comprises nicotine, the material may comprise an acid. The inclusion of an 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) from about 50% to about 200%, from about 75% to about 150%, from about 85% to about 140%, from about 95% to about 135%, from about 105% to about 130%, or from about 110% to about 125% relative to the moles of nicotine in the material. In some embodiments, the material comprises the acid in an amount (i.e. moles of acid) from about 100% to about 200%, from about 100% to about 180%, from about 110% to about 180%, from about 120% to about 180%, from about 130% to about 180%, or from about 135% to about 180% relative to the moles of nicotine in the material.

[0210] 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 covers both D and L enantiomers separately or a mixture thereof. For example, the lactic acid can be a mixture (for example a racemic mixture) of D-2-hydroxypropanoic acid and L-2-hydroxypropanoic acid. The term levulinic acid is synonymous with the term 4-oxopentanoic acid. In some embodiments, the active substance is a legally permissible recreational drug.

[0211] The active substance may be CBD or a derivative thereof.

[0212] The active substance may be a flavourant, but preferably the active substance is not a flavourant. As used herein, the terms "flavour" and "flavourant" refer to materials which, where local regulations permit, may be used to create a desired taste or aroma in a product for adult consumers.

[0213] The active substance may consist of or comprise one or a combination of extracts (e.g., licorice, hydrangea, Japanese white bark magnolia leaf, chamomile, fenugreek, clove, menthol, Japanese mint, aniseed, cinnamon, herb, 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, piment, ginger, anise, coriander, coffee, or a mint oil from any species of the genus Mentha), flavour enhancers, bitterness receptor site blockers, sensorial receptor site activators or stimulators, sugars and / or sugar substitutes (e.g., sucralose, acesulfame potassium, aspartame, saccharine, cyclamates, lactose, sucrose, glucose, fructose, sorbitol, or mannitol), and other additives such as charcoal, chlorophyll, minerals, botanicals, or breath freshening agents. They may be imitation, synthetic or natural ingredients or blends thereof. They may be in any suitable form, for example, oil, liquid, or powder.

[0214] Aerosol generating material

[0215] The articles described herein comprise an aerosol generating portion comprising an aerosol generating material 3 wrapped in a wrapper comprising a botanical material that comprises an active substance.

[0216] "Aerosol generating material", which includes "aerosolisable material", is a material that is capable of generating aerosol, for example when heated, irradiated or energized in any other way. Aerosol generating material may, for example, be in the form of a solid, liquid or semi-solid (such as a gel) which may or may not contain an active substance and / or flavourants as defined herein. Preferably the aerosol generating material 3 is provided as a cylindrical rod of aerosol generating material. Irrespective of the form 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 about 25 mm to 50 mm, more preferably in the range about 30 mm to 45 mm, and still more preferably about 30 mm to 40 mm.

[0217] The volume of aerosol generating material 3 provided can vary from about 200 mm3to about 4300 mm3, preferably from about 500 mm3to 1500 mm3, more preferably from about 1000 mm3to about 1300 mm3. The provision of these volumes of aerosol generating material, for instance from about 1000 mm3to about 1300 mm3, has been advantageously shown to achieve a superior aerosol, having a greater visibility and sensory performance compared to that achieved with volumes selected from the lower end of the range.

[0218] The mass of aerosol generating material 3 provided can be greater than 200 mg, for instance from about 200 mg to 400 mg, preferably from about 230 mg to 360 mg, more preferably from about 250 mg to 360 mg. In some embodiments, the aerosol generating substrate comprises between about 250 mg and about 380 mg, between about 300 mg and about 360 mg, between about 320 mg and about 350 mg or between about 330 mg and about 350 mg. It has been advantageously found that providing a higher mass of aerosol generating material results in improved sensory performance compared to aerosol generated from a lower mass. The aerosol generating material may consist of or comprise tobacco material as described herein, which includes a tobacco component. The tobacco component may contain reconstituted tobacco. The tobacco component may also contain leaf tobacco, extruded tobacco, and / or bandcast tobacco. The aerosol generating material may consist of or comprise tobacco material. The tobacco material may be provided in the form of cut rag tobacco. The cut rag tobacco can have a cut width of at least 15 cuts per inch (about 5.9 cuts per cm, equivalent to a cut width of about 1.7mm). Preferably, the cut rag tobacco has a cut width of at least 18 cuts per inch (about 7.1 cuts per cm, equivalent to a cut width of about 1.4mm), more preferably at least 20 cuts per inch (about 7.9 cuts per cm, equivalent to a cut width of about 1.27mm). In one example, the cut rag tobacco has a cut width of 22 cuts per inch (about 8.7 cuts per cm, equivalent to a cut width of about 1.15mm). Preferably, the cut rag tobacco has a cut width at or below 40 cuts per inch (about 15.7 cuts per cm, equivalent to a cut width of about 0.64mm). Cut widths between 0.5 mm and 2.0 mm, for instance between 0.6 mm and 1.5 mm, or between 0.6 mm and 1.7mm, have been found to result in tobacco material which is preferable in terms of surface area to volume ratio, particularly when heated, and the overall density and pressure drop of the substrate 3. The cut rag tobacco can be formed from a mixture of forms of tobacco material, for instance 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.

[0219] In some embodiments, the tobacco material may comprise a blend comprising lamina. In some embodiments, the blend may comprise greater than 50% lamina, such as greater than 60%, greater than 70%, greater than 80%, or greater than 9-

[0220] % lamina. In some embodiments, the blend comprises greater than 95% lamina, and in some embodiments the blend comprises essentially 100% lamina.

[0221] In embodiments in which 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 include ingredients originating from tobacco. The filler component may be a non-tobacco fibre such as wood fibre or pulp or wheat fibre. The filler component may also be an inorganic material such as chalk, perlite, vermiculite, diatomaceous earth, colloidal silica, magnesium oxide, magnesium sulphate, 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 from 1 to 10% by weight of the composition. In some embodiments, the filler component is absent.

[0222] In some embodiments, leaf tobacco may be present in the aerosol generating material. For example, in some embodiments, leaf tobacco may be present in combination with paper reconstituted tobacco, bandcast reconstituted tobacco, or a combination of bandcast reconstituted tobacco and another form of tobacco such as tobacco granules. In some embodiments, the aerosol generating material may comprise reconstituted tobacco material.

[0223] The aerosol generating material 3 can comprise reconstituted tobacco material having a density of less than about 700 milligrams per cubic centimetre (mg / cc).

[0224] Such tobacco material has been found to be particularly effective at providing an aerosol generating material which can be heated quickly to release an aerosol, as compared to denser materials. For instance, the inventors tested the properties of various aerosol generating materials, such as bandcast reconstituted tobacco material and paper reconstituted tobacco material, when heated. It was found that, for each given aerosol generating material, there is a particular zero heat flow temperature below which net heat flow is endothermic, in other words more heat enters the material than leaves the material, and above which net heat flow is exothermic, in other words more heat leaves the material than enters the material, while heat is applied to the material. Materials having a density less than 700 mg / cc had a lower zero heat flow temperature. Since a significant portion of the heat flow out of the material is via the formation of aerosol, having a lower zero heat flow temperature has a beneficial effect on the time it takes to first release aerosol from the aerosol generating material. For instance, aerosol generating materials having a density of less than 700 mg / cc were found to have a zero heat flow temperature of less than 164°C, as compared to materials with a density over 700 mg / cc, which had zero heat flow temperatures greater than 164°C.

[0225] The density of the aerosol generating material also has an impact on the speed at which heat conducts through the material, with lower densities, for instance those below 700 mg / cc, conducting heat more slowly through the material, and therefore enabling a more sustained release of aerosol.

[0226] The aerosol generating material 3 may comprise reconstituted tobacco material having a density of less than about 700 mg / cc, for instance paper reconstituted tobacco material. More preferably, the aerosol generating material 3 comprises reconstituted tobacco material having a density of less than about 600 mg / cc. Alternatively, or in addition, the aerosol generating material 3 preferably comprises reconstituted tobacco material having a density of at least 350 mg / cc, which is considered to allow for a sufficient amount of heat conduction through the material. Paper reconstituted tobacco may be present in the aerosol generating material described herein in an amount of from 10% to 100% by weight of the aerosol generating material. Preferably, the aerosol generating material comprises reconstituted tobacco material in an amount of between about 70% and about 90% by weight of the aerosol generating material. In embodiments, the paper reconstituted tobacco is present in an amount of from 10% to 80% by weight, or 20% to 70% by weight, of the aerosol generating material. In a further embodiment, the aerosol generating material consists essentially of, or consists of, paper reconstituted tobacco.

[0227] Paper reconstituted tobacco refers to tobacco material formed by a process in which tobacco feedstock is extracted with a solvent to afford an extract of solubles and a residue comprising fibrous material, and then the extract (usually after concentration, and optionally after further processing) is recombined with fibrous material from the residue (usually after refining of the fibrous material, and optionally with the addition of a portion of non-tobacco fibres) by deposition of the extract onto the fibrous material. The process of recombination resembles the process for making paper. The paper reconstituted tobacco may be any type of paper reconstituted tobacco that is known in the art. In a particular embodiment, the paper reconstituted tobacco is made from a feedstock comprising one or more of tobacco strips, tobacco stems, and whole leaf tobacco. In a further embodiment, the paper reconstituted tobacco is made from a feedstock consisting of tobacco strips and / or whole leaf tobacco, and tobacco stems. However, in other embodiments, scraps, fines and winnowings can alternatively or additionally be employed in the feedstock.

[0228] The paper reconstituted tobacco for use in the aerosol generating material described herein may be prepared by methods which are known to those skilled in the art for preparing paper reconstituted tobacco.

[0229] The aerosol generating material may consist of or comprise botanical material as defined herein. The aerosol generating material may comprise one or more active substances and / or flavours, one or more aerosol-former materials, and optionally one or more other functional material. The aerosol generating material may comprise a binder, such as a gelling agent, and an aerosol former. Optionally, a substance to be delivered and / or filler may also be present. Optionally, a solvent, such as water, is also 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 is substantially free from botanical material. In particular, in some embodiments, the aerosol generating material is substantially tobacco free. The aerosol generating material may comprise or be in the form of an aerosolgenerating film. The aerosol-generating film may comprise a binder, such as a gelling agent, and an aerosol former. Optionally, a substance to be delivered and / or filler may also be present. The aerosol-generating film may be substantially free from botanical material. In particular, in some embodiments, the aerosol generating material is substantially tobacco free.

[0230] 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.

[0231] The aerosol generating material may comprise more than one film, and the thickness described herein may refer to the aggregate thickness of those films.

[0232] The aerosol-generating film may be continuous. For example, the film may comprise or be a continuous sheet of material. The sheet may be in the form of a wrapper, it may be gathered to form a gathered sheet or it may be shredded to form a shredded sheet. The shredded sheet may comprise one or more strands or strips of aerosol generating material. The aerosol-generating film may be discontinuous. For example, the aerosolgenerating film may comprise one or more discrete portions or regions of aerosol generating material, such as dots, stripes or lines, which may be supported on a support. In such embodiments, the support may be planar or non-planar. The aerosol-generating film may be formed by combining a binder, such as a gelling agent, with a solvent, such as water, an aerosol-former 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 volatilise at least some of the solvent to form the aerosol-generating film.

[0233] The slurry may be heated to remove at least about 60 wt%, 70 wt%, 80 wt%, 85 wt% or 90 wt% of the solvent.

[0234] The aerosol generating material may comprise or be 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 dried gel. The thin film is a solid material that may retain some fluid, such as liquid, within it. In some embodiments, the thin film may, for example, comprise from about 50wt%, 60wt% or 70wt% of solid material, to about 90wt%, 95wt% or 100wt% of solid material.

[0235] The aerosol generating material is heated in use to generate an inhalable aerosol or vapour. The thin film may contain volatile components, such as nicotine and derivatives of nicotine, flavourants and aerosol forming materials. These volatiles in the thin film are volatilised in use and inhaled; the provision of the thin film allows the composition of the aerosol or vapour to be altered / enhanced

[0236] In some cases, the thin film may have a thickness of about 0.015mm to about 1.0mm. Suitably, the thickness may be in the range of about 0.05mm, 0.1mm or 0.15mm to about 0.5mm or 0.3mm. The inventors have found that a material having a thickness of 0.2mm is particularly suitable. The thin film may comprise more than one layer, and the thickness described herein refers to the aggregate thickness of those layers.

[0237] The aerosol generating material comprising the thin film may have any suitable area density, such as from 30 g / m2 to 120 g / m2. In some embodiments, aerosol generating material may have an area density of from about 30 to 70 g / m2, or about 40 to 60 g / m2. In some embodiments, the thin film may have an area density of from about 80 to 120 g / m2, or from about 70 to 110 g / m2, or particularly from about 90 to 110 g / m2.

[0238] In some examples, the thin film in sheet form may have a tensile strength of from around 200 N / m to around 900 N / m. In some examples, such as where the thin film does not comprise a filler, the thin film may have a tensile strength of from 200 N / m to 400 N / m, or 200 N / m to 300 N / m, or about 250 N / m. In some examples, such as where the thin film comprises a filler, the thin film may have a tensile strength of from 600 N / m to 900 N / m, or from 700 N / m to 900 N / m, or around 800 N / m.

[0239] In some cases, the thin film may comprise l-60wt% of a gelling agent wherein these weights are calculated on a dry weight basis. Suitably, the thin film may comprise from about lwt%, 5wt%, 10wt%, 15wt%, 20wt% or 25wt% to about 60wt%, 50wt%, 45wt%, 40wt%, 35wt%, 30wt% or 27wt% of a gelling agent (all calculated on a dry weight basis). For example, the thin film may comprise l-50wt%, 5-40wt%, 10-30wt% or 15-27wt% of a gelling agent.

[0240] 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 silicones compounds, clays, polyvinyl alcohol 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 alginate and / or pectin, and may be combined with a setting agent (such as a calcium source) during formation of the thin film. In some cases, the thin film may comprise a calcium-crosslinked alginate and / or a calcium-crosslinked pectin.

[0241] In some embodiments, the gelling agent comprises alginate, and the alginate is present in the thin film in an amount of from 10-30wt% of the thin film (calculated on a dry weight basis). In some embodiments, alginate is the only gelling agent present in the thin film. In other embodiments, the gelling agent comprises alginate and at least one further gelling agent, such as pectin. In some embodiments the thin film may include gelling agent comprising carrageenan. Suitably, the thin film may comprise from about 5wt%, 10wt%, 15wt%, or 20wt% to about 80wt%, 70wt%, 60wt%, 55wt%, 50wt%, 45wt% 40wt%, or 35wt% of an aerosol forming material (all calculated on a dry weight basis). The aerosol forming material may act as a plasticiser. For example, the thin film may comprise 5- 60wt%, 10-50wt% or 20-40wt% of an aerosol forming material. In some cases, the aerosol forming material comprises one or more compound selected from erythritol, propylene glycol, glycerol, triacetin, sorbitol and xylitol. In some cases, the aerosol forming material comprises, consists essentially of or consists of glycerol. The inventors have established that if the content of the plasticiser is too high, the thin film may absorb water resulting in a material that does not create an appropriate consumption experience in use. The inventors have established that if the plasticiser content is too low, the thin film may be brittle and easily broken. The plasticiser content specified herein provides an thin film flexibility which allows the thin film sheet to be wound onto a bobbin, which is useful in manufacture of aerosol generating articles.

[0242] In some cases, the thin film comprises an active substance. For example, in some cases, the thin film additionally comprises a tobacco material and / or nicotine. For example, the thin film may additionally comprise powdered tobacco and / or nicotine and / or a tobacco extract. In some cases, the thin film may comprise from about lwt%, 5wt%, 10wt%, 15wt%, 20wt% or 25wt% to about 70wt%, 50wt%, 45wt% or 40wt% (calculated on a dry weight basis) of active substance. In some cases, the thin film may comprise from about lwt%, 5wt%, 10wt%, 15wt%, 20wt% or 25wt% to about 70wt%, 60wt%, 50wt%, 45wt% or 40wt% (calculated on a dry weight basis) of a tobacco material and / or nicotine.

[0243] In some cases, the thin film comprises one or more active substances and flavourants. In some cases, the thin film comprises one or more of nicotine, tobacco extract and flavourants.

[0244] In some cases, the thin film comprises an active substance such as tobacco extract. In some cases, the thin film may comprise 5-60wt% (calculated on a dry weight basis) of tobacco extract. In some cases, the thin film may comprise from about 5wt%, 10wt%, 15wt%, 20wt% or 25wt% to about 55wt%, 50wt%, 45wt% or 40wt% (calculated on a dry weight basis) tobacco extract. For example, the thin film may comprise 5-60wt%, 10-55wt% or 25-55wt% of tobacco extract. The tobacco extract may contain nicotine at a concentration such that the thin film comprises lwt% 1.5wt%, 2wt% or 2.5wt% to about 6wt%, 5wt%, 4.5wt% or 4wt% (calculated on a dry weight basis) of nicotine. In some cases, there may be no nicotine in the thin film other than that which results from the tobacco extract. In some embodiments the thin film comprises no tobacco material but does comprise nicotine. In some such cases, the thin film may comprise from about lwt%, 2wt%, 3wt% or 4wt% to about 20wt%, 15wt%, 10wt% or 5wt% (calculated on a dry weight basis) of nicotine. For example, the thin film may comprise 1- 20wt% or 2-5wt% of nicotine.

[0245] In some cases, the thin film may comprise a flavour. Suitably, the thin film may comprise up to about 60wt%, 50wt%, 40wt%, 30wt%, 20wt%, 10wt% or 5wt% of a flavour. In some cases, the thin film may comprise at least about 0.1wt%, 0.5wt%, lwt%, 2wt%, 5wt% 10wt%, 20wt% or 30wt% of a flavour (all calculated on a dry weight basis). For example, the thin film may comprise 0.1-60wt%, 1- 60wt%, 5-60wt%, 10-60wt%, 20-50wt% or 30-40wt% of a flavour. In some cases, the flavour (if present) comprises, consists essentially of or consists of menthol. In some cases, the thin film does not comprise a flavour. In some cases, the total content of active substance and flavour may be at least about 0.1wt%, lwt%, 5wt%, 10wt%, 20wt%, 25wt% or 30wt%. In some cases, the total content of active substance (e.g. tobacco material and / or nicotine) and flavour may be less than about 80wt%, 70wt%, 60wt%, 50wt% or 40wt% (all calculated on a dry weight basis).

[0246] In some embodiments, the thin film is or comprises a hydrogel.

[0247] In some embodiments, the thin film comprises less than about 20wt% of water calculated on a wet weight basis. In some cases, the thin film may comprise less than about 15wt%, 12wt% or 10 wt% of water calculated on a wet weight basis (WWB). In some cases, the thin film may comprise at least about lwt%, 2wt% or at least about 5wt% of water (WWB). In some cases, the thin film comprises from about lwt% to about 15wt% water, or from about 5wt% to about 15wt% calculated on a wet weight basis. Suitably, the water content of the thin film may be from about 5wt%, 7wt% or 9wt% to about 15wt%, 13wt% or llwt% (WWB), most suitably about 10wt%. The thin film may be made from a gel, and this gel may additionally comprise a solvent, included at 0.1-50wt%. However, the inventors have established that the inclusion of a solvent in which the flavour is soluble may reduce the gel stability and the flavour may crystallise out of the gel. As such, in some cases, the gel does not include a solvent in which the flavour is soluble.

[0248] In some embodiments, the thin film comprises less than 60wt% of a filler, such as from lwt% to 60wt%, or 5wt% to 50wt%, or 5wt% to 30wt%, or 10wt% to 20wt%.

[0249] In other embodiments, the thin film comprises less than 20wt%, suitably less than 10wt% or less than 5wt% of a filler. In some cases, the thin film comprises less than lwt% of a filler, and in some cases, comprises no filler. The filler, if present, may comprise one or more inorganic filler materials, such as calcium carbonate, perlite, vermiculite, diatomaceous earth, colloidal silica, magnesium oxide, magnesium sulphate, magnesium carbonate, and suitable inorganic sorbents, such as molecular sieves. The filler may comprise one or more organic filler materials such as wood pulp, cellulose and cellulose derivatives. In particular, in some cases, the thin film comprises no calcium carbonate such as chalk.

[0250] In particular embodiments which include filler, the filler is fibrous. For example, the filler may be a fibrous organic filler material such as wood pulp, hemp fibre, cellulose or cellulose derivatives. Without wishing to be bound by theory, it is believed that including fibrous filler in an amorphous solid may increase the tensile strength of the material. This may be particularly advantageous in examples wherein the thin film is provided as a sheet, such as when an thin film sheet circumscribes a rod of aerosol generating material.

[0251] In some embodiments, the thin film does not comprise tobacco fibres. In particular embodiments, the thin film does not comprise fibrous material.

[0252] In some embodiments, the aerosol generating material may contain between 10% and 90% by weight tobacco leaf having a nicotine content of greater than 1.5% by weight of the tobacco leaf. In some embodiments, the tobacco material comprises leaf tobacco in an amount of between about 10% and about 30% by weight of the tobacco component. It has been advantageously found that using a tobacco leaf with nicotine content higher than 1.5% in combination with a lower nicotine base material, such as paper reconstituted tobacco, provides a tobacco material with an appropriate nicotine level but better sensory performance than the use of paper reconstituted tobacco alone. The tobacco leaf, for instance cut rag tobacco, can, for instance, have a nicotine content of between 1.5% and 5% by weight of the tobacco leaf.

[0253] The inclusion of an 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) from about 50% to about 200%, from about 75% to about 150%, from about 85% to about 140%, from about 95% to about 135%, from about 105% to about 130%, or from about 110% to about 125% relative to the moles of nicotine in the material. In some embodiments, the material comprises the acid in an amount (i.e. moles of acid) from about 100% to about 200%, from about 100% to about 180%, from about 110% to about 180%, from about 120% to about 180%, from about 130% to about 180%, or from about 135% to about 180% relative to the moles of nicotine in the material. 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 covers both D and L enantiomers separately or a mixture thereof. For example, the lactic acid can be a mixture (for example a racemic mixture) of D-2-hydroxypropanoic acid and L-2-hydroxypropanoic acid. The term levulinic acid is synonymous with the term 4-oxopentanoic acid.

[0254] In some embodiments, the aerosol generating material may comprise an aerosol forming material.

[0255] Aerosol Forming Material

[0256] In some embodiments, the aerosol generating material may comprise aerosol forming material as defined herein. In this context, an "aerosol forming material" is an agent that promotes the generation of an aerosol. An aerosol forming material may promote the generation of an aerosol by promoting an initial vaporisation and / or the condensation of a gas to an inhalable solid and / or liquid aerosol. In some embodiments, an aerosol forming material may improve the delivery of flavour from the aerosol generating material.

[0257] The aerosol forming material is included in the aerosol generating material in a higher level than the level used in products that are arranged to generate an aerosol by combustion.

[0258] In general, any suitable aerosol forming material or agents may be included in the aerosol generating material, including those described herein. Suitable aerosol forming materials include, but are not limited to: a polyol such as sorbitol, glycerol, and glycols like propylene glycol or triethylene glycol; a non-polyol such as monohydric alcohols, high boiling point hydrocarbons, acids such as lactic acid, glycerol derivatives, esters such as diacetin, triacetin, triethylene glycol diacetate, triethyl citrate or myristates including ethyl myristate and isopropyl myristate and aliphatic carboxylic acid esters such as methyl stearate, dimethyl dodecanedioate and dimethyl tetradecanedioate.

[0259] The aerosol forming material may comprise glycerol, propylene glycol, or a mixture of glycerol and propylene glycol

[0260] In some embodiment, the aerosol forming material comprises at least 5% by weight of the aerosol generating substrate, more preferably at least 10%.

[0261] Preferably, the aerosol forming material comprises less than 30% or less than 25% by weight of the aerosol generating substrate, for instance between 12% and 25%, between 15% and 20%.

[0262] The aerosol forming material may be included, for example, in the aerosol generating material and / or body of component material, if present. Aerosol-Modifying Agents

[0263] In some embodiments, the aerosol generating material may comprise an aerosol modifying agent. As used herein, the term "aerosol modifying agent" refers to a substance that is able to modify aerosol in use. An aerosol-modifying agent (also referred to herein as an aerosol-modifying additive) is a substance, typically located downstream of the aerosol generation area, that is configured to modify the aerosol generated, for example by changing the taste, flavour, acidity or another characteristic of the aerosol. The aerosolmodifying agent may be provided in an aerosol-modifying agent release component, that is operable to selectively release the aerosol-modifying agent. The aerosol-modifying agent may, for example, be an additive or a sorbent. The aerosol-modifying agent may, for example, comprise one or more of a flavourant, a colourant, water, and a carbon adsorbent. The aerosol-modifying agent may, for example, be a solid, a liquid, or a gel. The aerosol-modifying agent may be in powder, thread or granule form. The aerosol-modifying agent may be free from filtration material.

[0264] The aerosol generating material described herein may contain an aerosol modifying agent, such as any of the flavours described herein. In some embodiments, the aerosol generating material may contain menthol, forming a mentholated article. The aerosol generating material may comprise from 3mg to 20mg of menthol, preferably between 5mg and 18mg and more preferably between 8mg and 16mg of menthol. In some embodiments, the aerosol generating material may comprise 16mg of menthol. The aerosol generating material can contain between 2% and 8% by weight of menthol, preferably between 3% and 7% by weight of menthol and more preferably between 4% and 5.5% by weight of menthol. In one embodiment, the aerosol generating material includes 4.7% by weight of menthol. Such high levels of menthol loading can be achieved using a high percentage of reconstituted tobacco material, for instance greater than 50% of the tobacco material by weight. Alternatively or additionally, the use of a high volume of aerosol generating material, for instance tobacco material, can increase the level of menthol loading that can be achieved, for instance where greater than about 500 mm3 or suitably more than about 1000 mm3 of aerosol generating material, such as tobacco material, are used.

[0265] In some embodiments, the aerosol generating material may comprise a functional material. In some embodiments, the functional material may comprise one or more of flavours, carriers, pH regulators, stabilizers, and / or antioxidants. In some embodiments, the aerosol generating material may comprise an active substance as defined herein.

[0266] The aerosol generating material described herein may comprise nicotine. The nicotine content may be from 0.5 to 1.75% by weight of the aerosol generating material, and may be, for example, from 0.8 to 1.5% by weight of the aerosol generating material.

[0267] The material may be present on or in a support, to form a substrate. The support may, for example, be or comprise paper, card, paperboard, cardboard, reconstituted material, a plastics material, a ceramic material, a composite material, glass, a metal, or a metal alloy. In some embodiments, the support comprises a susceptor. In some embodiments, the susceptor is embedded within the material. In some alternative embodiments, the susceptor is on one or either side of the material.

[0268] A consumable is an article comprising or consisting of aerosol generating material, part or all of which is intended to be consumed during use by a user. A consumable may comprise one or more other components, such as an aerosol generating material storage area, an aerosol generating material transfer component, an aerosol generation area, a housing, a wrapper, a mouthpiece, a filter and / or an aerosol-modifying agent. A consumable may also comprise an aerosol generator, such as a heater, that emits heat to cause the aerosol generating material to generate aerosol in use. The heater may, for example, comprise combustible material, a material heatable by electrical conduction, or a susceptor.

[0269] In the compositions described herein, where amounts are given in % by weight, for the avoidance of doubt this refers to a dry weight basis, unless specifically indicated to the contrary. Thus, any water that may be present in the aerosol generating material, or in any component thereof, is entirely disregarded for the purposes of the determination of the weight %. The water content of the aerosol generating material described herein may vary and may be, for example, from 5 to 15% by weight. The water content of the aerosol generating material described herein may vary according to, for example, the temperature, pressure and humidity conditions at which the compositions are maintained. The water content can be determined by

[0270] Karl-Fisher analysis, as known to those skilled in the art. On the other hand, for the avoidance of doubt, even when an additive such as an aerosol forming material is a component that is in liquid phase, such as glycerol or propylene glycol, any component other than water is included in the weight of the aerosol generating material. However, when the additive is provided in the aerosol generating material, instead of or in addition to being added separately to the aerosol generating material, the additive is not included in the weight of the aerosolgenerating component, but is included in the weight % of the additive as defined herein.

[0271] Article Articles, for instance those in the shape of rods, are often named according to the product length: "regular" (typically in the range 68 - 75 mm, e.g. from about 68 mm to about 72 mm), "short" or "mini" (68 mm or less), "king-size" (typically in the range 75 - 91 mm, e.g. from about 79 mm to about 88 mm), "long" or "superking" (typically in the range 91 - 105 mm, e.g. from about 94 mm to about 101 mm) and "ultra-long" (typically in the range from about 110 mm to about 121 mm).

[0272] They are also named according to the product circumference: "regular" (about 23 - 25 mm), "wide" (greater than 25 mm), "slim" (about 22 - 23 mm), "demi-slim" (about 19 - 22 mm), "super-slim" (about 16 - 19 mm), and "micro-slim" (less than about 16 mm).

[0273] Accordingly, an article in a king-size, super-slim format will, for example, have a length of about 83 mm and a circumference of about 17 mm.

[0274] The article may have any product size format. However, the use of an aerosol generating portion wrapper comprising a botanical material comprising an active substance has been found to be particularly advantageous for use with the wider product size formats. In such products, the aerosol generating portion has a smaller surface area to volume ratio than thinner product size formats, and the wrapper may be heated to generate a significant quantity of aerosol before the aerosolgenerating portion is heated to an aerosol-generating temperature.

[0275] Each format may be produced with mouthpieces of different lengths. The mouthpiece length may be from about 30mm to 50 mm. A tipping paper connects the mouthpiece to the aerosol generating portion and will usually have a greater length than the mouthpiece, for example from 3 to 10 mm longer, such that the tipping paper covers the mouthpiece and overlaps the aerosol generating portion, to connect the mouthpiece to the aerosol generating portion.

[0276] Articles and their aerosol generating portions and mouthpieces described herein can be made in, but are not limited to, any of the above formats.

[0277] The terms 'upstream' and 'downstream' used herein are relative terms defined in relation to the direction of mainstream aerosol drawn though an article or device in use.

[0278] Delivery System

[0279] As used herein, the term "delivery system" is intended to encompass systems that deliver a substance to a user, and includes non-combustible aerosol provision systems that release compounds from an aerosol generating material without combusting the aerosol generating material, such as electronic cigarettes, tobacco heating products, and hybrid systems to generate aerosol using a combination of aerosol generating materials.

[0280] As used herein, the term "non-combustible aerosol provision system" refers to a system in which a constituent aerosol generating material of the aerosol provision system (or component thereof) is not combusted or burned in order to facilitate delivery to a user.

[0281] Although the articles described herein have been found to have advantages when used with a device that is arranged to heat the rod of aerosol generating material externally, the disclosed articles may nevertheless be used in other types of devices having different heating arrangements. Indeed, the disclosed articles have been found to also provide advantages when used with devices having alternative heating arrangements. For example, when used with a device arranged to heat the article internally, such as by means of a blade heater, the disclosed articles have been found to provide improved delivery of active substance in the final puffs. This is due to the wrapper of the aerosol generating material, which is the part of the rod that is furthest from the heater in this type of device, and thus heated last, comprising a botanical material comprising an active substance, and delivering the active substance to the user once the wrapper is heated to an appropriate temperature. The non-combustible aerosol provision system may be a powered non-combustible aerosol provision system.

[0282] The non-combustible aerosol provision system may be a tobacco heating system, also known as a heat-not-burn system.

[0283] The non-combustible aerosol provision device may comprise a power source and a controller. The power source may be an electric power source or an exothermic power source. In some embodiments, the exothermic power source may comprise a carbon substrate which may be energised so as to distribute power in the form of heat to an aerosol generating material or heat transfer material in proximity to the exothermic power source. In some embodiments, the power source, such as an exothermic power source, may be provided in the article so as to form the non- combustible aerosol provision system.

[0284] A susceptor is material that is heatable by penetration with a varying magnetic field, such as an alternating magnetic field. The heating material may be an electrically-conductive material, so that penetration thereof with a varying magnetic field causes induction heating of the heating material. The heating material may be magnetic material, so that penetration thereof with a varying magnetic field causes magnetic hysteresis heating of the heating material. The heating material may be both electrically-conductive and magnetic, so that the heating material is heatable by both heating mechanisms. Induction heating is a process in which an electrically-conductive object is heated by penetrating the object with a varying magnetic field. The process is described by Faraday's law of induction and Ohm's law. An induction heater may comprise an electromagnet and a device for passing a varying electrical current, such as an alternating current, through the electromagnet. When the electromagnet and the object to be heated are suitably relatively positioned so that the resultant varying magnetic field produced by the electromagnet penetrates the object, one or more eddy currents are generated inside the object. The object has a resistance to the flow of electrical currents. Therefore, when such eddy currents are generated in the object, their flow against the electrical resistance of the object causes the object to be heated. This process is called Joule, ohmic, or resistive heating. An object that is capable of being inductively heated is known as a susceptor. 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, magnetic coupling between the susceptor and the electromagnet in use is enhanced, which results in greater or improved Joule heating.

[0285] Magnetic hysteresis heating is a process in which an object made of a magnetic material is heated by penetrating the object with a varying magnetic field. A magnetic material can be considered to comprise many atomic-scale magnets, or magnetic dipoles. When a magnetic field penetrates such material, the magnetic dipoles align with the magnetic field. Therefore, when a varying magnetic field, such as an alternating magnetic field, for example as produced by an electromagnet, penetrates the magnetic material, the orientation of the magnetic dipoles changes with the varying applied magnetic field. Such magnetic dipole reorientation causes heat to be generated in the magnetic material.

[0286] When an object is both electrically-conductive and magnetic, penetrating the object with a varying magnetic field can cause both Joule heating and magnetic hysteresis heating in the object. Moreover, the use of magnetic material can strengthen the magnetic field, which can intensify the Joule heating.

[0287] In each of the above processes, as heat is generated inside the object itself, rather than by an external heat source by heat conduction, a rapid temperature rise in the object and more uniform heat distribution can be achieved, particularly through selection of suitable object material and geometry, and suitable varying magnetic field magnitude and orientation relative to the object. Moreover, as induction heating and magnetic hysteresis heating do not require a physical connection to be provided between the source of the varying magnetic field and the object, design freedom and control over the heating profile may be greater, and cost may be lower.

[0288] Devices of Figures 4-8

[0289] A non-combustible aerosol provision device is used to heat the aerosol generating portion 3 of the articles 1, 1' described herein. The non-combustible aerosol provision device preferably comprises a coil, since this has been found to enable improved heat transfer to the article 1, 1' as compared to other arrangements. In some examples, the coil is configured to, in use, cause heating of at least one electrically-conductive heating element, so that heat energy is conductible from the at least one electrically-conductive heating element to the aerosol generating portion to thereby cause heating of the aerosol generating material.

[0290] In some examples, the coil is configured to generate, in use, a varying magnetic field for penetrating at least one heating element, to thereby cause induction heating and / or magnetic hysteresis heating of the at least one heating element. In such an arrangement, the or each heating element may be termed a "susceptor" as defined herein. A coil that is configured to generate, in use, a varying magnetic field for penetrating at least one electrically-conductive heating element, to thereby cause induction heating of the at least one electrically-conductive heating element, may be termed an "induction coil" or "inductor coil". The device may include the heating element(s), for example electrically-conductive heating element(s), and the heating element(s) may be suitably located or locatable relative to the coil to enable such heating of the heating element(s). The heating element(s) may be in a fixed position relative to the coil. Alternatively, the at least one heating element, for example at least one electrically-conductive heating element, may be included in the article 1, 1' for insertion into a heating zone of the device, wherein the article 1, 1' also comprises the aerosol generating material 3 and is removable from the heating zone after use. Alternatively, both the device and such an article 1, 1' may comprise at least one respective heating element, for example at least one electrically-conductive heating element, and the coil may be to cause heating of the heating element(s) of each of the device and the article when the article is in the heating zone.

[0291] In some examples, the coil is helical. In some examples, the coil encircles at least a part of a heating zone of the device that is configured to receive an article such as that shown in Figures 1 and 3. In some examples, the coil is a helical coil that encircles at least a part of the heating zone.

[0292] In some examples, the device comprises an electrically-conductive heating element that at least partially surrounds the heating zone, and the coil is a helical coil that encircles at least a part 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.

[0293] Using an aerosol provision system including a coil as described herein, for instance an induction coil which heats at least some of the 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 that has particular characteristics which are thought to more closely resemble those of an FMC product. The use of an article as herein disclosed, in which the aerosol generating material is wrapped in a wrapper comprising a botanical material comprising an active substance has been found to provide characteristics that further resemble those of an FMC product, in particular in the initial seconds / puffs.

[0294] In embodiments in which the botanical material comprises reconstituted tobacco, at least 10 pg of nicotine, suitably at least 30 pg or 40 pg of nicotine, may be aerosolised from the wrapper in the initial puffs under an airflow of at least 1.50L / m.

[0295] The non-combustible aerosol provision device is preferably arranged to heat the aerosol generating portion 3 of the article 1, 1', to a maximum temperature of at least 160°C. Preferably, the non-combustible aerosol provision device is arranged to heat the aerosol generating portion 3 of the article 1, 1', to a maximum temperature of at least about 200°C, or at least about 220°C, or at least about 240°C, more preferably at least about 270°C such as about 300°C, at least once during the heating process followed by the non-combustible aerosol provision device.

[0296] Figure 4

[0297] Figure 4 shows an example of a non-combustible aerosol provision device 100 for generating aerosol from an aerosol generating medium / material such as the aerosol generating material 3 of the article 1 described herein.

[0298] In broad outline, the device 100 may be used to heat a replaceable article 110 comprising the aerosol generating medium, which may be, for instance the article 1 or 1' described herein, to generate an aerosol or other inhalable medium which is inhaled by a user of the device 100. The device 100 and replaceable article 110 together form a system. References throughout to the use and mechanism of action of article 110 with the device 100 apply equally to article 1, 1', and / or 1". The device 100 comprises a housing 102 (in the form of an outer cover) which surrounds and houses various components of the device 100. The device 100 has an opening 104 in one end, through which the article 110 may be inserted for heating by a heating assembly. In use, the article 110 may be fully or partially inserted into the heating assembly where it may be heated by one or more components of the heater assembly.

[0299] The device 100 of this example comprises a first end member 106 which comprises a lid 108 which is moveable relative to the first end member 106 to close the opening 104 when no article 110 is in place. In Figure 4, the lid 108 is shown in an open configuration, however the lid 108 may move into a closed configuration. For example, a user may cause the lid 108 to slide in the direction of arrow "B". The device 100 may also include a user-operable control element 112, such as a button or switch, which operates the device 100 when pressed. For example, a user may turn on the device 100 by operating the switch 112.

[0300] The device 100 may also comprise an electrical component, such as a socket / port 114, which can receive a cable to charge a battery of the device 100. For example, the socket 114 may be a charging port, such as a USB charging port.

[0301] Figure 5

[0302] Figure 5 depicts the device 100 of Figure 4 with the outer cover 102 removed and without an article 110 present. The device 100 defines a longitudinal axis 134.

[0303] As shown in Figure 5, the first end member 106 is arranged at one end of the device 100 and a second end member 116 is arranged at an opposite end of the device 100. The first and second end members 106, 116 together at least partially define end surfaces of the device 100. For example, the bottom surface of the second end member 116 at least partially defines a bottom surface of the device 100. Edges of the outer cover 102 may also define a portion of the end surfaces. In this example, the lid 108 also defines a portion of a top surface of the device 100. The end of the device closest to the opening 104 may be known as the proximal end (or mouth end) of the device 100 because, in use, it is closest to the mouth of the user. In use, a user inserts an article 110 into the opening 104, operates the user control 112 to begin heating the aerosol generating material and draws on the aerosol generated in the device. This causes the aerosol to flow through the device 100 along a flow path towards the proximal end of the device 100. The other end of the device furthest away from the opening 104 may be known as the distal end of the device 100 because, in use, it is the end furthest away from the mouth of the user. As a user draws on the aerosol generated in the device, the aerosol flows away from the distal end of the device 100. The device 100 further comprises a power source 118. The power source 118 may be, for example, a battery, such as a rechargeable battery or a non-rechargeable battery. Examples of suitable batteries include, for example, a lithium battery (such as a lithium-ion battery), a nickel battery (such as a nickel-cadmium battery), and an alkaline battery. The battery is electrically coupled to the heating assembly to supply electrical power when required and under control of a controller (not shown) to heat the aerosol generating material. In this example, the battery is connected to a central support 120 which holds the battery 118 in place.

[0304] The device further comprises at least one electronics module 122. The electronics module 122 may comprise, 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 comprise one or more electrical tracks to electrically connect together various electronic components of the device 100. For example, the battery terminals may be electrically connected to the PCB 122 so that power can be distributed throughout the device 100. The socket 114 may also be electrically coupled to the battery via the electrical tracks.

[0305] In the example device 100, the heating assembly is an inductive heating assembly and comprises various components to heat the aerosol generating material of the article 110 via an inductive heating process. Induction heating is a process of heating an electrically conducting object (such as a susceptor) by electromagnetic induction. An induction heating assembly may comprise an inductive element, for example, one or more inductor coils, and a device for passing a varying electric current, such as an alternating electric current, through the inductive element. The varying electric current in the inductive element produces a varying magnetic field.

[0306] The varying magnetic field penetrates a susceptor suitably positioned with respect to the inductive element, and generates eddy currents inside the susceptor. The susceptor has electrical resistance to the eddy currents, and hence the flow of the eddy currents against this resistance causes the susceptor to be heated by Joule heating. In cases where the susceptor comprises ferromagnetic material such as iron, nickel or cobalt, heat may also be generated by magnetic hysteresis losses in the susceptor, i.e. by the varying orientation of magnetic dipoles in the magnetic material as a result of their alignment with the varying magnetic field. In inductive heating, as compared to heating by conduction for example, heat is generated inside the susceptor, allowing for rapid heating. Further, there need not be any physical contact between the inductive heater and the susceptor, allowing for enhanced freedom in construction and application.

[0307] The induction heating assembly of the example device 100 comprises a susceptor arrangement 132 (herein referred to as "a susceptor"), a first inductor coil 124 and a second inductor coil 126. The first and second inductor coils 124, 126 are made from an electrically conducting material. In this example, the first and second inductor coils 124, 126 are made from Litz wire / cable which is wound in a helical fashion to provide helical inductor coils 124, 126. Litz wire comprises a plurality of individual wires which are individually insulated and are twisted together to form a single wire. Litz wires are designed to reduce the skin effect losses in a conductor. In the example device 100, the first and second inductor coils 124, 126 are made from copper Litz wire which has a rectangular cross section. In other examples the Litz wire can have other shape cross sections, such as circular.

[0308] The first inductor coil 124 is configured to generate a first varying magnetic field for heating a first section of the susceptor 132 and the second inductor coil 126 is configured to generate a second varying magnetic field for heating 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 (that is, the first and second inductor coils 124, 126 to not overlap). The susceptor arrangement 132 may comprise a single susceptor, or two or more separate susceptors. Ends 130 of the first and second inductor coils 124, 126 can be connected to the PCB 122.

[0309] It will be appreciated that the first and second inductor coils 124, 126, in some examples, may have at least one characteristic different from each other. For example, the first inductor coil 124 may have at least one characteristic different from the second inductor coil 126. More specifically, in one example, the first inductor coil 124 may have a different value of inductance than the second inductor coil 126. In Figure 5, the first and second inductor coils 124, 126 are of different lengths such 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 comprise a different number of turns than the second inductor coil 126

[0310] (assuming that the spacing between individual turns is substantially the same). In yet another example, the first inductor coil 124 may be made from a different material to the second inductor coil 126. In some examples, the first and second inductor coils 124, 126 may be substantially identical.

[0311] 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 active at different times. For example, initially, the first inductor coil 124 may be operating to heat a first section / portion of the article 110, and at a later time, the second inductor coil 126 may be operating to heat a second section / portion of the article 110. Winding the coils in opposite directions helps reduce the current induced in the inactive coil when used in conjunction with a particular type of control circuit. In Figure 5, the first inductor coil 124 is a right-hand helix and the second inductor coil 126 is a left-hand helix. However, in another embodiment, the inductor coils 124, 126 may be wound in the same direction, or the first inductor coil 124 may be a left-hand helix and the second inductor coil 126 may be a righthand helix.

[0312] The susceptor 132 of this example is hollow and therefore defines a receptacle within which aerosol generating material is received. For example, the article 110 can be inserted into the susceptor 132. In this example the susceptor 120 is tubular, with a circular cross section.

[0313] The susceptor 132 may be made from one or more materials. Preferably the susceptor 132 comprises carbon steel having a coating of Nickel or Cobalt.

[0314] In some examples, the susceptor 132 may comprise at least two materials capable of being heated at two different frequencies for selective aerosolization of the at least two materials. For example, a first section of the susceptor 132 (which is heated by the first inductor coil 124) may comprise a first material, and a second section of the susceptor 132 which is heated by the second inductor coil 126 may comprise a second, different material. In another example, the first section may comprise first and second materials, where the first and second materials can be heated differently based upon operation of the first inductor coil 124. The first and second materials may be adjacent along an axis defined by the susceptor 132, or may form different layers within the susceptor 132. Similarly, the second section may comprise third and fourth materials, where the third and fourth materials can be heated differently based upon operation of the second inductor coil 126. The third and fourth materials may be adjacent along an axis defined by the susceptor 132, or may form different layers within the susceptor 132. Third material may the same as the first material, and the fourth material may be the same as the second material, for example. Alternatively, each of the materials may be different. The susceptor may comprise carbon steel or aluminium for example.

[0315] The device 100 of Figure 5 further comprises an insulating member 128 which may be generally tubular and at least partially surround the susceptor 132. The insulating member 128 may be constructed from any insulating material, such as plastic for example. In this particular example, the insulating member is constructed from polyether ether ketone (PEEK). The insulating member 128 may help insulate the various components of the device 100 from the heat generated in the susceptor 132.

[0316] The insulating member 128 can also fully or partially support the first and second inductor coils 124, 126. For example, as shown in Figure 5, the first and second inductor coils 124, 126 are positioned around the insulating member 128 and are in contact with a radially outward surface of the insulating member 128. In some examples the insulating member 128 does not abut the first and second inductor coils 124, 126. For example, a small gap may be present between the outer surface of the insulating member 128 and the inner surface of the first and second inductor coils 124, 126. In a specific example, the susceptor 132, the insulating member 128, and the first and second inductor coils 124, 126 are coaxial around a central longitudinal axis of the susceptor 132.

[0317] Figures 6-8 Figure 6 shows a side view of device 100 in partial cross-section. The outer cover 102 is present in this example. The rectangular cross-sectional shape of the first and second inductor coils 124, 126 is more clearly visible. The device 100 further comprises a support 136 which engages one end of the susceptor 132 to hold the susceptor 132 in place. The support 136 is connected to the second end member 116.

[0318] The device may also comprise a second printed circuit board 138 associated within the control element 112.

[0319] The device 100 further comprises a second lid / cap 140 and a spring 142, arranged towards the distal end of the device 100. The spring 142 allows the second lid 140 to be opened, to provide access to the susceptor 132. A user may open the second lid 140 to clean the susceptor 132 and / or the support 136.

[0320] The device 100 further comprises an expansion chamber 144 which extends away from a proximal end of the susceptor 132 towards the opening 104 of the device.

[0321] Located at least partially within the expansion chamber 144 is a retention clip 146 to abut and hold the article 110 when received within the device 100. The expansion chamber 144 is connected to the end member 106. Figure 7 is an exploded view of the device 100 of Figure 6, with the outer cover 102 omitted.

[0322] Figure 8A depicts a cross section of a portion of the device 100 of Figure 6. Figure 8B depicts a close-up of a region of Figure 8A. Figures 8A and 8B show the article 110 received within the susceptor 132, where the article 110 is dimensioned so that the wrapper of the aerosol generating portion of the article 110 abuts the inner surface of the susceptor 132. This ensures that the heating is most efficient. This arrangement also ensures that the wrapper is heated to an aerosol generating temperature before the aerosol generating material. As a result, the initial aerosol that is delivered to the user is generated by the wrapper of the article, which comprises botanical material comprising an active substance.

[0323] Figure 8B shows 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 a longitudinal axis 158 of the susceptor 132. In one particular example, the distance 150 is about 3mm to 4mm, about 3-3.5mm, or about 3.25mm. Figure 8B further shows 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 a longitudinal axis 158 of the susceptor 132. In one particular example, the distance 152 is about 0.05mm. In another example, the distance 152 is substantially 0mm, such that the inductor coils 124, 126 abut and touch the insulating member 128.

[0324] In one example, the susceptor 132 has a wall thickness 154 of about 0.025mm to 1mm, or about 0.05mm.

[0325] In one example, the susceptor 132 has a length of about 40mm to 60mm, about 40mm to 45mm, or about 44.5mm. In one example, the insulating member 128 has a wall thickness 156 of about 0.25mm to 2mm, 0.25mm to 1mm, or about 0.5mm.

[0326] Figure 9

[0327] Figure 9 illustrates an example of a method suitable for manufacturing an article as shown in Figure 1, for use in a non-combustible aerosol provision system.

[0328] At step S101, first and second portions of aerosol generating material, each comprising an aerosol forming material wrapped in a wrapper comprising a botanical material comprising an active substance, are positioned adjacent to respective first and second longitudinal ends of a mouthpiece rod. The mouthpiece rod comprises a rod formed from filamentary tow wrapped in a plug wrap disposed between the first and second ends.

[0329] At step S102, the first and second portions of aerosol generating material are connected to the mouthpiece rod. In the present example, this is performed by wrapping a tipping paper 5 as described herein around the mouthpiece rod and at least part of each of the portions of aerosol generating material 3. In the present example, the tipping paper 5 extends about 5mm longitudinally over the outer surface of each of the portioned of aerosol generating material 3.

[0330] At step S103, the mouthpiece rod is cut to form first and second articles, each article comprising a mouthpiece comprising a portion of the mouthpiece rod. In the present example, double length mouthpiece rod is cut at a position about half-way along its length, so as to form first and second substantially identical articles.

[0331] Examples In order to test the articles described herein in use with non-combustible aerosol provision devices such as the device 100 described with reference to Figures 4 to 8, test articles were prepared.

[0332] All of the test articles were produced in the demi-slim format.

[0333] Test Article 1

[0334] Test Article 1 was produced having the arrangement shown in Figure 1. The wrapper 10 of the rod of aerosol generating material was a conventional Alu tobacco wrapper as typically used in articles of this type, for use with non- combustible aerosol provision devices such as the device 100 described with reference to Figures 4 to 8.

[0335] The aerosol generating material 3 was a blend of 80 parts reconstituted tobacco material to 20 parts tobacco.

[0336] Test Article 1 included a mouthpiece 2 consisting of a plug of cellulose acetate tow 6 wrapped in a plug wrap 7. The mouthpiece was attached to the rod of aerosol generating material using a tipping wrapper 5. The tipping wrapper was a conventional paper wrapper as typically used in articles of this type, having a pale brown "cork" appearance. The mouthpiece tipping paper was ventilated by means of a ring of perforations circumscribing the wrapper.

[0337] Test Article 2

[0338] Test Article 2 was identical to Test Article 1 except for the tipping wrapper arrangement at the mouth end.

[0339] Specifically, the tipping wrapper at the mouth end, downstream of the ring of perforations, was overwrapped in Test Article 2 with a wrapper resembling reconstituted tobacco material, having a dark brown appearance.

[0340] The tipping wrapper of Test Article 2 that was used to combine the mouthpiece and the rod of aerosol generating material was otherwise identical to that of Test Article 1. Specifically, the tipping wrapper also included an identical arrangement of ventilating perforations, in an identical position, to that of Test Article 1. All the other components and arrangements of the article, including wrappers and aerosol generating material, were also identical to those of Test Article 1.

[0341] Test Article 3

[0342] Test Article 3 was identical to Test Article 1 except for the wrapper 10 of the rod of aerosol generating material. In Test Article 3, the wrapper 10 was a single layered reconstituted tobacco wrapper comprising nicotine and having the following specification:

[0343] Basis weight (g / m2): 39

[0344] Tensile strength (N / 15mm) 12 Moisture (%) 9

[0345] Tobacco content 30

[0346] The tipping wrapper and all other components of the article, including the aerosol generating material were identical to those of Test Article 1.

[0347] Experimental Set Up

[0348] The Test Articles were each used by a panel of test consumers in a Test Device.

[0349] The Test Device was a non-combustible aerosol provision device as shown in Figures 4 to 8. The device was encased in a cardboard shield such that only the mouth end tip of the mouthpiece of the Test Article being tested was visible to the test consumers.

[0350] A panel of 30 test consumers was used in the Experiments.

[0351] Experiment 1

[0352] In Experiment 1, Test Article 1 and Test Article 2 were used and compared by the test consumers. In this Experiment, the Test Articles had a significantly different appearance to the test consumers because the only part of the Test Articles visible to the test consumers was the mouth end portion of the mouthpiece. This prompted the test consumers to believe that they were using different articles, whereas in fact, apart from the appearance at the mouth end tip, the Test Articles were otherwise identical. Experiment 2

[0353] In Experiment 2, Test Article 1 and Test Article 3 were used and compared by the test consumers.

[0354] In this Experiment, the Test Articles had an identical appearance to the test consumers because the tipping paper and mouthpiece arrangement, which were the only part of the Test Articles visible to the test consumers, were identical. This prompted the test consumers to believe that they were using the same articles, whereas in fact, the Test Articles had different wrappers of the rod of aerosol generating material.

[0355] The test consumers found that relative to Test Article 1, Test Article 3 had a higher taste intensity, higher impact, greater visible aerosol, and lower irritation.

[0356] Thus, the articles described herein, such as articles 1, 1', and 1", have particular advantages, for instance when used with non-combustible aerosol provision devices such as the device 100 described with reference to Figures 4 to 8.

[0357] The various embodiments described herein are presented only to assist in understanding and teaching the claimed features. These embodiments are provided as a representative sample of embodiments only, and are not exhaustive and / or exclusive. It is to be understood that advantages, embodiments, examples, functions, features, structures, and / or other aspects described herein are not to be considered limitations on the scope of the invention as defined by the claims or limitations on equivalents to the claims, and that other embodiments may be utilised and modifications may be made without departing from the scope of the claimed invention. Various embodiments of the invention may suitably comprise, consist of, or consist essentially of, appropriate combinations of the disclosed elements, components, features, parts, steps, means, etc, other than those specifically described herein. In addition, this disclosure may include other inventions not presently claimed, but which may be claimed in future.

Claims

Claims1. An article for use in a non-combustible aerosol provision system, the article comprising an aerosol generating portion, wherein the aerosol generating portion comprises an aerosol generating material wrapped in a wrapper, wherein the wrapper comprises a botanical material comprising an active substance.

2. An article as claimed in claim 1, wherein the wrapper is arranged to be heated to generate an aerosol comprising the active substance when used in the non-combustible aerosol provision system.

3. An article as claimed in claim 1 or claim 2, wherein the aerosol generating portion is a rod, and wherein the wrapper is arranged to extend around the longitudinal surface of the rod.

4. An article as claimed in any one of claims 1-3, wherein the wrapper is a single-layered wrapper.

5. An article as claimed in any one of claims 1-4, wherein the wrapper comprises aerosol forming material in an amount of less than 5% by mass.

6. An article as claimed in any one of claims 1-5, wherein the wrapper comprises a thin film.

7. An article as claimed in any one of claims 1-6, wherein the wrapper comprises reconstituted tobacco material.

8. An article as claimed in claim 7, wherein the wrapper comprises nicotine or a nicotine salt.

9. An article as claimed in any one of claims 1-8, wherein the wrapper comprises non-tobacco botanical material.

10. An article as claimed in claim 9, wherein the wrapper comprises: (a) rooibos; and / or(b) mint, chamomile, eucalyptus, lavender, ginger, cinnamon, star anise, cocoa, hemp, fennel, and / or clove material.

11. An article as claimed in any one of claims 1-10, wherein the active substance comprises a nutraceutical, nootropic, and / or psychoactive.

12. An article as claimed in claim 11, wherein the active substance comprises caffeine, taurine, theine, vitamin B6, vitamin B12, vitamin C, melatonin, and / or a cannabinoid.

13. A method of manufacturing an article as claimed in any one of claims 1-12, the method comprising wrapping an aerosol generating material with a wrapper to form an aerosol generating portion, wherein the wrapper comprises a botanical material comprising an active substance.

14. A system comprising an article as claimed in any one of claims 1-12 and a heating device configured to heat the aerosol generating portion of the article, wherein the wrapper is arranged to be heated to generate aerosol before the aerosol generating material.

15. A system as claimed in claim 14, wherein the heating device comprises a cavity arranged to receive the aerosol generating portion of the article and to heat the external surface of the aerosol generating portion.

16. A system as claimed in claim 14 or claim 15, wherein the heating device is arranged to heat the aerosol generating portion to a temperature of between about 200 °C and 300 °C.

17. A system as claimed in any one of claims 14-16, wherein the heating device comprises a cavity comprising an internal surface arranged contact the longitudinal circumferential surface of the aerosol generating portion and to heat the wrapper of the aerosol generating portion to generate an aerosol comprising active substance from the wrapper.

18. A system as claimed in any one of claims 14-17, wherein the heating device is arranged to receive the aerosol generating portion and to heat the aerosol generating portion to generate an aerosol comprising active substance from the wrapper before an aerosol comprising active substance is generated from the aerosol generating material.

19. A system as claimed in any one of claims 14-18, wherein the system is arranged to heat the aerosol generating portion to generate an aerosol from the wrapper of the aerosol generating portion, wherein in use, the aerosol composition of the initial puff is different to the aerosol composition of the initial puff produced using an article that does not comprise a wrapper of the aerosol generating portion that comprises a botanical material comprising an active substance.

20. A system as claimed in any one of claims 14-19, wherein the system is arranged to heat the aerosol generating portion to generate an aerosol from both the wrapper and the aerosol generating material of the aerosol generating portion, wherein, in use, the aerosol from the wrapper is detectable before the aerosol from the aerosol generating material.

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