Mouthpiece for an article for use in an aerosol provision system

Abstract

To provide a mouthpiece capable of maintaining structural integrity against compressive / crushing forces during use.SOLUTION: A mouthpiece (2) for use in an aerosol provision system is disclosed, the mouthpiece (2) comprising two or more cylindrical sections (4, 5) circumscribed by a first, inner wrapper (9) and a second, outer wrapper (10). The first, inner web 9 may be a high wet strength web and the second, outer web 10 may be a porous web.SELECTED DRAWING: Figure 1a

Description

[Technical Field]

[0001] The present invention relates to a mouthpiece for use in an aerosol delivery system, an article comprising such a mouthpiece, and an aerosol delivery system including an article having such a mouthpiece.

[0002] Certain tobacco industry products generate an aerosol during use, which is inhaled by the user. For example, tobacco heating devices heat an aerosol-generating material, such as tobacco, to form an aerosol by non-combustion heating of the material. Such tobacco industry products typically include a mouthpiece through which the aerosol passes to the user's mouth. Overview

[0003] According to embodiments of the present invention, in a first aspect, there is provided a mouthpiece for use in an aerosol delivery system, the mouthpiece comprising two or more cylindrical sections circumscribed by a first inner web and a second outer web, the first web being a high wet strength web having a wet tensile strength greater than 3 Newtons per 15 millimeters.

[0004] According to an embodiment of the present invention, in a second aspect, there is provided a mouthpiece for use in an aerosol delivery system, the mouthpiece comprising two or more cylindrical sections circumscribed by a first inner web and a second outer web, the first web being a high wet strength web having a wet tensile strength greater than 3 Newtons per 15 millimeters, and the second web being a porous web.

[0005] According to embodiments of the present invention, in a third aspect, there is provided a mouthpiece for use in an aerosol delivery system, the mouthpiece comprising two or more cylindrical sections circumscribed by a first inner web and a second outer web, the second web being a porous web.

[0006] According to embodiments of the present invention, in a fourth aspect there is provided an article for use in an aerosol delivery system, the article comprising a section containing an aerosol-generating material and a mouthpiece according to the first aspect.

[0007] According to an embodiment of the present invention, in a fifth aspect, there is provided a system comprising an article according to the second aspect and a non-combustible aerosol delivery device for heating an aerosol-forming material of the article.

[0008] Embodiments of the present invention will now be described, by way of example only, with reference to the accompanying drawings, in which: [Brief explanation of the drawings]

[0009] [Figure 1a] 1 is a side cross-sectional view of an article for use with an aerosol delivery device. [Figure 1b] FIG. 1b is a cross-sectional view of the mouthpiece shown in FIG. 1a. [Figure 2] FIG. 1B is a perspective view of a non-combustion aerosol delivery device for generating aerosol from the aerosol-forming material of the article of FIGS. 1a and 1b. Detailed Description

[0010] The present invention relates to a mouthpiece for use in a delivery system.The present invention also relates to an article for use in a delivery system.

[0011] Known articles for use in delivery systems include a section containing an aerosol-forming material and a mouthpiece. A user interacts with the mouthpiece in several ways. For example, the mouthpiece may be handled by the user when the user removes the article from its packaging. The mouthpiece may also be handled during a period after the article has been removed from its packaging but before use. The mouthpiece may also be placed in the user's mouth before and during use.

[0012] The mouthpiece facilitates the delivery of the aerosol generated by the aerosol-forming material to the user, and therefore it is important that the mouthpiece is able to maintain its structural integrity during use.

[0013] A user can apply various forces to a mouthpiece. For example, a user may apply a compressive / crushing force to a mouthpiece before or during use. In some cases, the mouthpiece may become wet during use, which in itself may affect the structural integrity of the mouthpiece. In some cases, a user may apply a crushing / compressive force to a mouthpiece by biting the mouthpiece or by touching the mouthpiece with their hands after the mouthpiece has become wet. Therefore, there is a need for a mouthpiece that can maintain its structural integrity during use. As used herein, the term "delivery system" is intended to encompass systems that deliver a substance to a user, including: Combustible aerosol delivery systems, such as cigarettes, cigarillos, cigars, and tobacco for pipes or for hand-rolled or handmade cigarettes (whether based on tobacco, tobacco derivatives, expanded tobacco, reconstituted tobacco, tobacco substitutes, or other smoking materials); Non-combustion aerosol delivery systems that release compounds from aerosolizable materials without burning the aerosolizable materials, such as electronic cigarettes, tobacco heating products, and mixing systems for generating aerosols using combinations of aerosolizable materials; and Included are articles comprising an aerosolizable material and configured for use in one of these non-combustible aerosol delivery systems.

[0014] According to this disclosure, a "combustible" aerosol delivery system is one in which the aerosolizable constituent material (or components thereof) of the aerosol delivery system is burned or combusted to facilitate delivery to a user.

[0015] According to the present disclosure, a "non-combustion" aerosol delivery system is one in which the aerosolizable components of the aerosol delivery system (or components thereof) are not combusted or burned to facilitate delivery to a user. In embodiments described herein, the delivery system is a non-combustion aerosol delivery system, such as a powered non-combustion aerosol delivery system.

[0016] In one embodiment, the non-combustion aerosol delivery system is an electronic cigarette, also known as a vaping device or electronic nicotine delivery system (END), although it should be noted that the presence of nicotine within the aerosolizable material is not a requirement.

[0017] In one embodiment, the non-combustion aerosol delivery system is a tobacco heating system, also known as a non-combustion heating system.

[0018] In one embodiment, the non-combustion aerosol delivery system is a mixing system for generating an aerosol using a combination of aerosolizable materials, and one or more of the aerosolizable materials can be heated. Each of the aerosolizable materials can be, for example, in solid, liquid, or gel form and may or may not contain nicotine. In one embodiment, the mixing system includes a liquid or gel aerosolizable material and a solid aerosolizable material. The solid aerosolizable material can include, for example, tobacco or a non-tobacco product.

[0019] The aerosol delivery systems disclosed herein include a mouthpiece and a section containing an aerosol-generating material. In some known systems, the mouthpiece includes a filter or at least one filter section. Additionally or alternatively, the mouthpiece can include a hollow tubular section.

[0020] During use, the mouthpiece may become wet, for example, when the mouthpiece comes into contact with a user's saliva. During use, the mouthpiece may be subjected to compressive / crushing forces. In some embodiments, the present invention provides a mouthpiece with enhanced structural integrity, particularly when exposed to moisture and / or compressive / crushing forces. Without wishing to be bound by theory, it is believed that the enhanced structural integrity is provided by the combination of the first inner wrapper and the second outer wrapper described herein.

[0021] The present invention relates to a mouthpiece for use in an aerosol delivery system, the mouthpiece comprising two or more cylindrical sections circumscribed by a first inner web and a second outer web, the first web being a high wet strength web having a wet tensile strength greater than 3 Newtons per 15 millimeters, and the second web being a porous web.

[0022] The present invention also relates to a mouthpiece for use in an aerosol delivery system, the mouthpiece comprising two or more cylindrical sections circumscribed by a first inner web and a second outer web, the first web being a high wet strength web having a wet tensile strength greater than 3 Newtons per 15 millimeters.

[0023] The present invention also relates to a mouthpiece for use in an aerosol delivery system, the mouthpiece comprising two or more cylindrical sections circumscribed by a first inner web and a second outer web, the second web being a porous web.

[0024] When the mouthpiece comprises two or more cylindrical sections circumscribed by a first, inner web and a second, outer web, the first web is a high wet strength web and the outer web can be any web, such as any web described herein.

[0025] When the mouthpiece comprises two or more cylindrical sections circumscribed by a first, inner web and a second, outer web, the second web is a porous web and the inner web can be any web, such as any of the webs described herein.

[0026] In one embodiment, the high wet strength web has a wet tensile strength of from about 3 Newtons per 15 millimeters to about 10 Newtons per 15 millimeters, from about 4 Newtons per 15 millimeters to about 8 Newtons per 15 millimeters, or from about 5 Newtons per 15 millimeters to about 7 Newtons per 15 millimeters.

[0027] In one embodiment, a high wet strength web has a wet tensile strength greater than about 3 Newtons per 15 millimeters, greater than about 4 Newtons per 15 millimeters, or greater than about 5 Newtons per 15 millimeters. Preferably, a high wet strength web has a wet tensile strength of about 5 Newtons per 15 millimeters, about 6 Newtons per 15 millimeters, or about 7 Newtons per 15 millimeters. More preferably, a high wet strength web has a wet tensile strength of about 6 Newtons per 15 millimeters.

[0028] In one embodiment, the high wet strength web has a dry tensile strength of from about 15 Newtons per 15 millimeters to about 40 Newtons per 15 millimeters, from about 15 Newtons per 15 millimeters to about 35 Newtons per 15 millimeters, or from about 20 Newtons per 15 millimeters to about 30 Newtons per 15 millimeters.

[0029] In one embodiment, a high wet strength web has a dry tensile strength greater than about 15 Newtons per 15 millimeters or greater than about 20 Newtons per 15 millimeters. Preferably, a high wet strength web has a dry tensile strength of about 20 Newtons per 15 millimeters, about 25 Newtons per 15 millimeters, or about 30 Newtons per 15 millimeters. More preferably, a high wet strength web has a dry tensile strength of about 25 Newtons per 15 millimeters.

[0030] In one embodiment, the high wet strength web has a basis weight of less than 50 gsm, preferably less than 45 gsm, and more preferably less than 40 gsm. In some embodiments, the high wet strength web has a basis weight of from about 20 gsm to about 50 gsm, preferably from about 20 gsm to about 40 gsm, and more preferably from about 20 gsm to about 30 gsm. In some embodiments, the high wet strength web has a basis weight of about 27 gsm.

[0031] The high wet strength web preferably has a thickness of about 25 micrometers to about 55 micrometers, about 30 micrometers to 50 micrometers, or about 35 micrometers to 45 micrometers. In one embodiment, the high wet strength web has a thickness of about 35 micrometers, about 40 micrometers, or about 45 micrometers.

[0032] It has been found that when a high wet strength paper wrapper according to any of the above embodiments is used, the mouthpiece provides enhanced compression resistance, i.e., the mouthpiece is resistant to forces applied to the mouthpiece by a user, for example by touching or biting. Without wishing to be bound by theory, it is believed that a high wet strength paper wrapper according to any of the above embodiments is more resistant to liquids that it comes into contact with during use, such as the user's saliva.

[0033] In one embodiment, the porous web has a permeability of from about 2000 Coresta units to about 10000 Coresta units, from about 4000 Coresta units to about 8000 Coresta units, or from about 5000 Coresta units to about 7000 Coresta units.

[0034] In one embodiment, the porous web has a permeability of greater than about 2000 Coresta units, greater than about 4000 Coresta units, or greater than about 5000 Coresta units. Preferably, the porous web has a permeability of about 5000 Coresta units, about 6000 Coresta units, or about 7000 Coresta units. More preferably, the porous web has a permeability of about 6000 Coresta units.

[0035] The porous web preferably has a thickness of about 40 micrometers to about 80 micrometers, about 45 micrometers to 75 micrometers, or about 50 micrometers to 70 micrometers. In one embodiment, the porous web has a thickness of about 50 micrometers, about 55 micrometers, about 60 micrometers, about 65 micrometers, or about 70 micrometers.

[0036] It has been found that when a porous wrapper according to any of the above embodiments is used, the mouthpiece maintains its integrity for a longer period of use than when a porous wrapper is not used.

[0037] In some embodiments, the high wet strength web directly contacts the porous web. In other embodiments, there is an additional web or plug wrap between the high wet strength web and the porous web. In both of these embodiments, an adhesive layer or portion may be disposed between the high wet strength web and the porous web.

[0038] In some embodiments, the first cylindrical section comprises a hollow tubular element formed from filament tow. High wet strength and / or porous wrappers according to the embodiments described herein have been found to be particularly effective in reducing the likelihood that the hollow tubular element will become detached from the mouthpiece during use. That is, the present invention provides improved mouthpiece integrity during use.

[0039] It has been found that the hollow tubular element reduces the temperature of the outer surface of the mouthpiece at the downstream end of the mouthpiece that contacts the consumer's mouth when the article is in use. In addition, it has been found that the use of the tubular element also significantly reduces the temperature of the outer surface of the mouthpiece upstream of the tubular element. Without wishing to be bound by theory, it is hypothesized that this is due to the tubular element causing the aerosol to pass closer to the center of the mouthpiece, thus reducing the transfer of heat from the aerosol to the outer surface of the mouthpiece.

[0040] The filament tow forming the hollow tubular element preferably has a total fineness of less than 45,000, more preferably less than 42,000. This total fineness has been found to allow for the formation of tubular elements that are not too dense. The total fineness is preferably at least 20,000, more preferably at least 25,000. In a preferred embodiment, the filament tow forming the hollow tubular element has a total fineness of 25,000 to 50,000, more preferably 35,000 to 45,000. In a preferred embodiment, the filament tow forming the hollow tubular element has a total fineness of about 40,000. The cross-sectional shape of the filaments in the tow is preferably "Y" shaped, although other shapes, such as "X" shaped filaments, can be used in other embodiments.

[0041] The filament tows forming the hollow tubular elements preferably have a monofilament fineness greater than 3. This monofilament fineness has been found to allow for the formation of tubular elements that are not too dense. The monofilament fineness is preferably at least 4, more preferably at least 5. In preferred embodiments, the filament tows forming the hollow tubular elements have a monofilament fineness of 5 to 12, or 4 to 10, more preferably 4 to 9. In one example, the filament tows forming the hollow tubular elements have an 8Y40,000 tow formed from cellulose acetate and containing 18% plasticizer, such as triacetin.

[0042] The "wall thickness" of a hollow tubular element corresponds to the thickness of the wall of the tube in the radial direction. This can be measured, for example, using calipers. Advantageously, the wall thickness is greater than 0.9 mm, more preferably 1.0 mm or greater. Preferably, the wall thickness is substantially constant throughout the wall of the hollow tubular element. However, if the wall thickness is not substantially constant, the wall thickness is preferably greater than 0.9 mm, more preferably 1.0 mm or greater, at any point around the hollow tubular element.

[0043] Preferably, the length of the hollow tubular element is less than about 20 mm. More preferably, the length of the hollow tubular element is less than about 15 mm. Even more preferably, the length of the hollow tubular element is less than about 10 mm. Additionally or alternatively, the length of the hollow tubular element is at least about 5 mm. Preferably, the length of the hollow tubular element is at least about 6 mm. In some preferred embodiments, the length of the hollow tubular element is between about 5 mm and about 20 mm, more preferably between about 6 mm and about 10 mm, even more preferably between about 6 mm and about 8 mm, and most preferably about 6 mm, 7 mm, or about 8 mm. In this example, the length of the hollow tubular element is 6 mm.

[0044] The density of the hollow tubular element is preferably at least about 0.25 grams per cubic centimeter (g / cc), more preferably at least about 0.3 g / cc. The density of the hollow tubular element is preferably less than about 0.75 grams per cubic centimeter (g / cc), more preferably less than 0.6 g / cc. In some embodiments, the density of the hollow tubular element is 0.25-0.75 g / cc, more preferably 0.3-0.6 g / cc, more preferably 0.4 g / cc-0.6 g / cc, or about 0.5 g / cc. These densities have been found to provide a good balance between the improved stiffness provided by higher density materials and the lower heat transfer characteristics of lower density materials. For purposes of this invention, the "density" of the hollow tubular element refers to the density of the filament tow forming the element, including any plasticizer incorporated therein. The density can be determined by dividing the total weight of the hollow tubular element by the total volume of the hollow tubular element, which can be calculated using appropriate measurements of the hollow tubular element, for example, obtained using calipers. If necessary, appropriate dimensions can be measured using a microscope.

[0045] Preferably, the hollow tubular element has an inner diameter greater than 3.0 mm. A smaller diameter may undesirably increase the velocity of the aerosol through the mouthpiece and into the consumer's mouth, resulting in the aerosol becoming too warm, for example reaching temperatures greater than 40° C. or greater than 45° C. More preferably, the hollow tubular element has an inner diameter greater than 3.1 mm, and even more preferably greater than 3.5 mm or 3.6 mm. In one embodiment, the hollow tubular element has an inner diameter of about 3.7 mm.

[0046] The hollow tubular element preferably contains 15% to 22% by weight of plasticizer. For cellulose acetate tow, the plasticizer is preferably triacetin, although other plasticizers such as polyethylene glycol (PEG) can also be used. More preferably, the tubular element 4 contains 16% to 20% by weight of plasticizer, for example, about 17%, about 18%, or about 19%.

[0047] In some embodiments, the second cylindrical section comprises a body of material formed from the filament tow. In some embodiments, the second cylindrical section is adjacent to the first cylindrical section and in an abutting relationship with the first cylindrical section. In some embodiments, the second cylindrical section is located upstream of the first cylindrical section.

[0048] The total fineness of the filament tows forming the body of material is preferably at most 30,000, more preferably at most 28,000, and even more preferably at most 25,000. These total fineness values ​​provide the tows with a smaller percentage of the cross-sectional area of ​​the mouthpiece, resulting in a lower pressure drop across the mouthpiece than tows with higher total fineness values. For a body of material of adequate stiffness, the tows preferably have a total fineness of at least 8,000, more preferably at least 10,000. In a preferred embodiment, the filament tows forming the body of material have a total fineness of 8,000 to 30,000, more preferably 10,000 to 25,000.

[0049] Preferably, the single fineness is 5 to 12, and the total fineness is 10,000 to 25,000. More preferably, the single fineness is 6 to 10, and the total fineness is 11,000 to 22,000. The cross-sectional shape of the filaments in the tow is preferably "Y" shaped, although other shapes, such as "X" shaped filaments, having the same dpf and total fineness values ​​provided herein can be used in other embodiments.

[0050] The filament tow materials described herein can include cellulose acetate fiber tows. The filament tows can also be formed using other materials used to form fibers, such as polyvinyl alcohol (PVOH), polylactic acid (PLA), polycaprolactone (PCL), poly(1-4 butanediol succinate) (PBS), poly(butylene adipate-co-terephthalate) (PBAT), starch-based materials, cotton, aliphatic polyester materials, and polysaccharide polymers, or combinations thereof. The filament tows can be plasticized with a suitable plasticizer for the tow, such as triacetin if the material is cellulose acetate tow, or the tows can be unplasticized. The tow can have any suitable specifications, such as other cross sections such as "Y" or "X", fibers having a single fineness value of 2.5 to 15, e.g., 8.0 to 11.0, and a total fineness value of 5,000 to 50,000, e.g., 10,000 to 40,000.

[0051] Preferably, the length of the body of material is less than about 20 mm. More preferably, the length of the body of material is less than about 15 mm. Additionally or alternatively, the length of the body of material is at least about 5 mm. Preferably, the length of the body of material is at least about 10 mm. In some preferred embodiments, the length of the body of material is between about 5 mm and about 15 mm, more preferably between about 6 mm and about 12 mm, even more preferably between about 6 mm and about 12 mm, and most preferably about 6 mm, 7 mm, 8 mm, 9 mm, or 10 mm. In this example, the length of the body of material is 10 mm.

[0052] In some embodiments, the body of material and the hollow tubular element each define a substantially cylindrical overall outer shape and share a common longitudinal axis. In some embodiments, the body of material is rolled up within a first plug wrap. The first plug wrap preferably has a basis weight of less than 50 gsm, more preferably between about 20 gsm and 40 gsm. The first plug wrap preferably has a thickness of between 30 μm and 60 μm, more preferably between 35 μm and 45 μm. The first plug wrap is preferably non-porous, e.g., having a permeability of less than 100 Coresta units, e.g., less than 50 Coresta units. However, in other embodiments, the first plug wrap can be porous, e.g., having a permeability of greater than 200 Coresta units.

[0053] In the embodiments described above, the mouthpiece comprises a single body of material. In other embodiments, the mouthpiece may include multiple bodies of material. The mouthpiece may comprise cavities between the bodies of material.

[0054] In some embodiments, the mouthpiece comprises a third cylindrical section comprising a second hollow tubular element. In some embodiments, the mouthpiece includes a third cylindrical section upstream of the second cylindrical section. That is, the second cylindrical section can be disposed between the first and third cylindrical sections. In some preferred embodiments, the third cylindrical section is located upstream of the second cylindrical section, adjacent to the second cylindrical section, and in abutting relation with the second cylindrical section.

[0055] In some embodiments, the third cylindrical section is not wrapped by the first inner web and is optionally wrapped by the second outer web. In some embodiments, the third cylindrical section is not wrapped by the first inner web and is wrapped by the second outer web.

[0056] In some embodiments, the first, second, and third cylindrical sections are combined by a second outer web wrapped around all three sections. In preferred embodiments, an adhesive layer or portion may be disposed between the second outer web and any of the first, second, and / or third cylindrical sections, or any of the webs / plug wraps wrapped around each or any of the first, second, and / or third cylindrical sections.

[0057] It has been found that when a first inner web circumscribes the first and second sections and a second outer web circumscribes the first, second, and third sections, the integrity of the mouthpiece is improved. For example, the first section is more securely maintained within the mouthpiece, even under wet and / or chewing conditions. Without wishing to be bound by theory, this is believed to be due to increased adhesion between the first section and the second outer web. For example, when the first inner web is a high wet strength web and the outer web is an arbitrary web, the adhesion between the first section and the second outer web increases. For example, when the inner web is an arbitrary web and the outer web is a porous web, the adhesion between the first section and the second outer web increases.

[0058] The third cylindrical section comprises a second hollow tubular element, also referred to as the cooling element, hi some embodiments, the second hollow tubular element is formed from multiple paper layers.

[0059] In some embodiments, the third cylindrical section can be wrapped within a second plug wrap, which can be disposed between the second hollow tubular element and the second outer paper wrap.

[0060] Alternatively or additionally, the second hollow tubular element can be formed using stiff plug wrap and / or tipping paper, meaning that a separate tubular element is not required. The stiff plug wrap and / or tipping paper is manufactured to have sufficient rigidity to withstand axial compressive forces and bending moments that may occur during manufacture and use of the article. For example, the stiff plug wrap and / or tipping paper can have a basis weight of 70 gsm to 120 gsm, more preferably 80 gsm to 110 gsm. Additionally or alternatively, the stiff plug wrap and / or tipping paper can have a thickness of 80 μm to 200 μm, more preferably 100 μm to 160 μm, or 120 μm to 150 μm. It may be desirable to have values ​​within these ranges for both the second plug wrap and the tipping paper to achieve an acceptable overall stiffness level for the second hollow tubular element.

[0061] The second hollow tubular element preferably has a wall thickness that can be measured in the same manner as the first hollow tubular element, and the wall thickness of the second hollow tubular element is at least about 100 μm to a maximum of about 1.5 mm, preferably 100 μm to 1 mm, more preferably 150 μm to 500 μm, or about 300 μm. In this example, the second hollow tubular element has a wall thickness of about 290 μm.

[0062] Preferably, the length of the second hollow tubular element is less than about 50 mm. More preferably, the length of the second hollow tubular element is less than about 40 mm. Even more preferably, the length of the second hollow tubular element is less than about 30 mm. Additionally or alternatively, the length of the second hollow tubular element is preferably at least about 10 mm. Preferably, the length of the second hollow tubular element is at least about 15 mm. In some preferred embodiments, the length of the second hollow tubular element is between about 20 mm and about 30 mm, more preferably between about 22 mm and about 28 mm, even more preferably between about 24 mm and about 26 mm, and most preferably about 25 mm. In this example, the length of the second hollow tubular element is 25 mm.

[0063] In some embodiments, the second hollow tubular element surrounds and defines a cavity within the mouthpiece that acts as a cooling segment. The cavity provides a chamber through which heated volatile components generated by the aerosol-generating material flow. The second hollow tubular element is hollow and provides a chamber for the aerosol accumulation that is still rigid enough to withstand axial compressive forces and bending moments that may occur during manufacturing and use of the article 1. The second hollow tubular element provides a physical displacement between the aerosol-generating material and the main body of material. The physical displacement provided by the second hollow tubular element provides a temperature gradient along the length of the second hollow tubular element.

[0064] The second hollow tubular element can be configured to provide a temperature difference of at least 40 degrees Celsius between the heated volatilized component entering the first upstream end of the second hollow tubular element and the heated volatilized component exiting the second downstream end of the second hollow tubular element. The second hollow tubular element is preferably configured to provide a temperature difference of at least 60 degrees Celsius, preferably at least 80 degrees Celsius, and more preferably at least 100 degrees Celsius between the heated volatilized component entering the first upstream end of the second hollow tubular element and the heated volatilized component exiting the second downstream end of the second hollow tubular element. This temperature difference along the length of the second hollow tubular element protects the temperature-sensitive body of material from the high temperatures of the aerosol-generating material when heated.

[0065] In an alternative article, the second hollow tubular element may be replaced by an alternative cooling element, for example an element formed from a body of material that performs the function of cooling the aerosol while allowing the aerosol to pass longitudinally therethrough.

[0066] The mouthpiece is 450mm 3It is preferable to have a cavity with a larger internal volume. It has been found that providing a cavity of at least this volume allows for improved aerosol formation. Such a cavity size provides sufficient space within the mouthpiece to allow heated volatile components to cool, thus allowing exposure of the aerosol-generating material to higher temperatures than would otherwise be possible because too warm an aerosol would result. In some embodiments, the cavity is formed by the second hollow tubular element, but in alternative configurations it can be formed within a different portion of the mouthpiece. The mouthpiece may include a cavity formed within the second hollow tubular element, for example, the cavity being more preferably 500 mm. 3 Larger, even more preferably 550mm 3 It has a larger internal volume, allowing for further improvement of the aerosol. In some examples, the internal cavity is about 550 mm 3 ~about 750mm 3 , for example, about 600 mm 3 or 700mm 3 Includes the volume of

[0067] Preferably, the pressure drop or differential pressure (also called resistance to draw) across the mouthpiece, e.g., the portion of the article downstream of the aerosol-generating material, is less than about 50 mmH2O. Such a pressure drop has been found to allow sufficient aerosol containing desirable compounds, such as flavor compounds, to pass through the mouthpiece and reach the consumer. More preferably, the pressure drop across the mouthpiece is less than about 45 mmH2O. In some embodiments, particularly improved aerosols are achieved using mouthpieces having a pressure drop of less than 31 mmH2O, e.g., about 29 mmH2O, about 28 mmH2O, or about 27.5 mmH2O. Alternatively or additionally, the pressure drop across the mouthpiece can be at least 10 mmH2O, preferably at least 15 mmH2O, and more preferably at least 20 mmH2O. In some embodiments, the pressure drop across the mouthpiece can be between about 15 mmH2O and 50 mmH2O, preferably about 44 mmH2O. These values ​​allow the mouthpiece to decelerate the aerosol as it passes through the mouthpiece, thus allowing time for the aerosol to cool before reaching the downstream end of the mouthpiece.

[0068] In some embodiments, at least one capsule is embedded within the body of material. The capsule can comprise a breakable capsule, e.g., a capsule having a solid, frangible shell surrounding a liquid payload. A single capsule can be used. The capsule is entirely embedded within the body of material. In other words, the capsule is completely surrounded by the material forming the body.

[0069] In other examples, multiple breakable capsules, for example, two, three, or more breakable capsules, can be disposed within the body of material. The length of the body of material can be increased to accommodate the required number of capsules. In examples where multiple capsules are used, the individual capsules can be the same as one another or can differ from one another in terms of size and / or capsule payload. In other examples, multiple bodies of material can be provided, each body housing one or more capsules.

[0070] The capsule can have a core-shell structure. In other words, the capsule has a shell that encapsulates a liquid agent, such as a flavoring or other agent, which can be any one of the flavorings or aerosol-modifying agents described herein. The capsule shell can be ruptured by the user to release the flavoring or other agent into the body of material. The first plug wrap, the first inner web, or the second outer web can comprise a barrier coating that renders the material of the first plug wrap, the first inner web, or the second outer web substantially impermeable to the liquid payload of the capsule. Alternatively or additionally, the tipping paper can comprise a barrier coating that renders the material substantially impermeable to the liquid payload of the capsule.

[0071] The capsules can have a core-shell structure, i.e., the encapsulating or barrier material can create a shell around a core containing the liquid agent, the shell structure preventing migration of the liquid agent during storage of the article but allowing for controlled release of the liquid agent during use.

[0072] In some cases, the barrier material (also referred to herein as the encapsulating material) is fragile. The capsule is crushed or otherwise broken or destroyed by the user to release the encapsulated liquid agent. Typically, the capsule is broken just before heating is initiated, but the user can choose when to release the aerosol modifying agent. The term "breakable capsule" refers to a capsule whose shell can be broken by pressure to release the core, more specifically, the shell can be ruptured under pressure applied by the user's finger when the user wishes to release the capsule's core.

[0073] In one embodiment, the body of material is in the form of a cylinder having a longitudinal axis, and the capsule is embedded within the body of material such that the capsule is surrounded on all sides by the material forming the body of material. The capsule preferably has a shell encapsulating the liquid aerosol modifying agent.

[0074] In some embodiments, when the aerosol-generating material is heated to deliver an aerosol, for example, in a non-combustible aerosol delivery device described herein, the portion of the mouthpiece in which the capsule is located reaches a temperature of 58-70 degrees Celsius during use of the system to generate the aerosol. As a result of this temperature, the capsule contents are sufficiently warmed to promote volatilization of the capsule contents, e.g., aerosol modifiers, into the aerosol formed by the system as the aerosol passes through the mouthpiece.

[0075] In other cases, the capsules release the core composition when heated, for example by melting the barrier material or by expanding the capsule and rupturing the barrier material.

[0076] The total weight of the capsule can be within the range of about 1 mg to about 100 mg, preferably about 5 mg to about 60 mg, about 8 mg to about 50 mg, about 10 mg to about 20 mg, or about 12 mg to about 18 mg.

[0077] The total weight of the core formulation can be in the range of about 2 mg to about 90 mg, preferably about 3 mg to about 70 mg, about 5 mg to about 25 mg, about 8 mg to about 20 mg, or about 10 mg to about 15 mg.

[0078] The aerosol modifier may be provided within the body of material 5, for example, in the form of capsules. In other examples, the aerosol modifier may also be provided in other forms, such as a material infused into the body of material or provided in a thread, for example the thread may carry a flavoring or other aerosol modifier, and the thread may also be disposed within the body of material.

[0079] In the figures described herein, the same reference numerals are used to describe equivalent features, items or components.

[0080] As shown in Figure 1a, the article 1 comprises a mouthpiece 2 and a section of aerosol-forming material 3, in this case tobacco material, connected to the mouthpiece 2.

[0081] The mouthpiece 2 in this example includes two cylindrical sections (first cylindrical section 4 and second cylindrical section 5) circumscribed by a first inner web 9 and a second outer web 10. The first inner web 9 is a high wet strength web and the second outer web 10 is a porous web.

[0082] In this example, the first cylindrical section 4 comprises a hollow tubular element formed from a filament tow, and the second cylindrical section 5 comprises a body of material formed from the filament tow. In this example, the second cylindrical section 5 is adjacent to the first cylindrical section 4 and is in an abutting relationship with the first cylindrical section 4. In this example, the second cylindrical section 5 is located upstream of the first cylindrical section 4.

[0083] In this example, mouthpiece 2 includes a third cylindrical section 8 that is located upstream of, adjacent to, and in abutting relationship with second cylindrical section 5. Third cylindrical section 8 is circumscribed by a porous wrapping paper.

[0084] In this example, the second cylindrical section 5 is circumscribed by a first plug wrap 7 and the third cylindrical section 8 is circumscribed by a second plug wrap 12. The second cylindrical section 5 has perforations 14.

[0085] As shown in FIG. 1a, mouthpiece 2 of article 1 has an upstream end 2a located proximal to the section of aerosol-generating material 3 and a downstream end 2b located distal to the aerosol-generating material 3. At downstream end 2b, mouthpiece 2 has a hollow tubular element formed from filament tow. At upstream end 2a, third cylindrical section 8 is adjacent to and in abutting relationship with the section comprising aerosol-generating material 3. The section comprising aerosol-generating material 3 is circumscribed by a third web and partially circumscribed by tipping paper 6. Tipping paper 6 also circumscribes first cylindrical section 4, second cylindrical section 5, and third cylindrical section 8.

[0086] A cross-sectional view of mouthpiece 2 is shown in Figure lb, taken along line A-A' in Figure lb. Figure lb shows first cylindrical section 4, first inner web 9, second outer web 10, and tipping paper 6. First inner web 9, second outer web 10, and tipping paper 6 are concentrically arranged around first cylindrical section 4.

[0087] The mouthpiece of the present application particularly relates to disposable articles that can be used with or as an aerosol delivery system. For example, if the aerosol delivery system is a non-combustible aerosol delivery system, an article or consumable comprising an aerosol-generating material can be inserted into the device to heat the aerosol-generating material, thereby forming an inhalable aerosol to be inhaled by a user. The generated aerosol leaves the system through the mouthpiece and is inhaled by the user.

[0088] In some embodiments, the article has a circumference of about 19 mm to about 23 mm, preferably about 21 mm (i.e., the article is in a demi-slim format). In other embodiments, the article can be provided in any of the formats described herein, for example, having a circumference of 15 mm to 25 mm. Because the article can be heated to release aerosol, improved heating efficiency can be achieved by using an article with a smaller circumference within this range, for example, a circumference less than 23 mm. It has been found that article circumferences greater than 19 mm are also particularly effective for achieving improved aerosol upon heating while maintaining a suitable product length. Articles having a circumference of 19 mm to 23 mm, more preferably 20 mm to 22 mm, have been found to provide a good balance between allowing efficient heating while providing effective aerosol delivery.

[0089] The perimeter of the mouthpiece is substantially the same as the perimeter of the section of aerosol-forming material, such that the transition between these components is smooth. In one embodiment, the mouthpiece and the section of aerosol-forming material are held together by tipping paper that circumscribes at least a portion of the mouthpiece and a portion of the section of aerosol-forming material.

[0090] In this example, the mouthpiece has a circumference of approximately 20.8 mm. Tipping paper is wrapped around the entire length of the mouthpiece and over part of the section of aerosol-generating material, and the tipping paper has adhesive on its inner surface to connect the mouthpiece and the section of aerosol-generating material. In this example, the tipping paper extends 5 mm over the section of aerosol-generating material, but alternatively, it could extend 3 mm to 10 mm, or more preferably 4 mm to 6 mm, over the section of aerosol-generating material to provide a secure attachment between the mouthpiece and the section of aerosol-generating material.

[0091] The tipping paper can have a basis weight greater than that of the web / plug wrap used in the article, for example, 40 gsm to 80 gsm, more preferably 50 gsm to 70 gsm, in this example 58 gsm. It has been found that these basis weight ranges result in tipping paper that has acceptable tensile strength while being flexible enough to wrap the article around it and adhere to itself along the longitudinal lap seam of the paper. After being wrapped around the mouthpiece, the tipping paper has a circumference of approximately 21 mm.

[0092] In some embodiments, the article has a ventilation level of about 75% of the aerosol inhaled through the article. In alternative embodiments, the article can have a ventilation level of 50% to 80%, e.g., 65% to 75%, of the aerosol inhaled through the article. These levels of ventilation help slow the flow of aerosol inhaled through the mouthpiece, allowing the aerosol to cool sufficiently before reaching the downstream end of the mouthpiece. Ventilation can be provided directly into the mouthpiece of the article. In this example, ventilation is provided into the second hollow tubular element, which has been found to be particularly beneficial in supporting the aerosol generation process. Ventilation is provided via first and second parallel rows of perforations, in this case formed as laser drillings 17.925 mm and 18.625 mm away from the downstream mouth end of the mouthpiece, respectively. These perforations pass through the tipping paper, the second outer web, and the second hollow tubular element. In alternative embodiments, ventilation may be provided elsewhere into the mouthpiece, for example into the body of material or the first tubular element.

[0093] Articles, e.g., rod-shaped articles, are often designated according to the length of the product as "regular" (typically 68-75 mm, e.g., in the range of about 68 mm to about 72 mm), "short" or "mini" (68 mm or less), "king size" (typically 75-91 mm, e.g., in the range of about 79 mm to about 88 mm), "long" or "super king" (typically 91-105 mm, e.g., in the range of about 94 mm to about 101 mm), and "ultra long" (typically in the range of about 110 mm to about 121 mm).

[0094] Articles are also designated according to the circumference of the product as "regular" (approximately 23-25 ​​mm), "wide" (over 25 mm), "slim" (approximately 22-23 mm), "demi-slim" (approximately 19-22 mm), "super slim" (approximately 16-19 mm), and "micro slim" (less than approximately 16 mm).

[0095] Thus, a king size, super slim format article may have, for example, a length of about 83 mm and a circumference of about 17 mm.

[0096] Each format can be made with a mouthpiece of a different length, typically between about 30 mm and 50 mm. Tipping paper connects the mouthpiece to the aerosol-generating material, and the tipping paper typically has a length greater than the mouthpiece, e.g., 3 to 10 mm longer, so that the tipping paper covers the mouthpiece and overlaps the aerosol-generating material, e.g., in the form of a rod of substrate material, connecting the mouthpiece to the rod.

[0097] The articles described herein and their aerosol-forming materials and mouthpieces can be made in any of the formats described above, but are not limited to these.

[0098] As used herein, the terms "upstream" and "downstream" are relative terms defined in relation to the direction in which mainstream aerosol is drawn through the article or device in use.

[0099] The aerosol-generating material provides an aerosol when heated, for example, in a combustion or non-combustion aerosol delivery device described herein. In other embodiments, the article can include its own heat source, forming an aerosol delivery system, and is used within an aerosol delivery system, without the need for a separate aerosol delivery device.

[0100] In some embodiments, the aerosol-generating material is wound within a third web 13. The third web can be, for example, a paper or paper-backed foil web. In some embodiments, the third web is substantially impermeable to air. In alternative embodiments, the third web preferably has a permeability of less than 100 Coresta units, more preferably less than 80 Coresta units. In alternative embodiments, the third web preferably has a permeability of less than 60 Coresta units, more preferably less than 20 Coresta units. It has been found that a low-permeability web, for example, having a permeability of less than 100 Coresta units, more preferably less than 60 Coresta units or 20 Coresta units, results in improved aerosol formation within the aerosol-generating material. Without wishing to be bound by theory, it is hypothesized that this is due to reduced loss of aerosol compound by the third web. The permeability of the third wrapper can be measured in accordance with ISO 2965:2009 for determination of the air permeability of materials used as cigarette papers, filter plug wraps, and filter bonding papers.

[0101] When the article is intended for use with a non-combustion aerosol delivery system, the third paper wrapper can include aluminum foil. Aluminum foil has been found to be particularly effective in promoting aerosol formation within the aerosol-generating material. In this example, the aluminum foil has a metal layer having a thickness of approximately 6 μm. In this example, the aluminum foil has a paper backing. However, in alternative configurations, the aluminum foil can have other thicknesses, for example, a thickness of 4 μm to 16 μm. The aluminum foil also need not have a paper backing, and can have a backing formed from another material, for example, to help provide the foil with adequate tensile strength, or can have no backing material at all. Metal layers or foils other than aluminum can also be used. The total thickness of the paper wrapper is preferably 20 μm to 60 μm, more preferably 30 μm to 50 μm, which can provide the paper wrapper with adequate structural integrity and heat transfer properties. The pulling force that can be applied to the web before the web breaks can be greater than 3,000 grams-force, for example, 3,000 to 10,000 grams-force, or 3,000 to 4,500 grams-force.

[0102] The aerosol-forming material 3, also referred to herein as an aerosol-forming substrate, includes at least one aerosol-forming material. In this example, the aerosol-forming material is glycerol. In alternative examples, the aerosol-forming material can be another material described herein or a combination thereof. The aerosol-forming material has been found to improve the sensory performance of the article by aiding in the transfer of compounds, such as fragrance compounds, from the aerosol-forming material to the consumer.

[0103] In this example, the aerosol-forming material added to the aerosol-generating substrate constitutes 14% by weight of the aerosol-generating substrate. The aerosol-forming material preferably constitutes at least 5% by weight, more preferably at least 10% by weight, of the aerosol-generating substrate. The aerosol-forming material preferably constitutes less than 25% by weight, more preferably less than 20% by weight, of the aerosol-generating substrate, for example, 10% to 20%, 12% to 18%, or 13% to 16%.

[0104] The aerosol-generating material is preferably provided as a cylindrical rod of aerosol-generating material. Regardless of the form of the aerosol-generating material, the aerosol-generating material preferably has a length of about 10 mm to 100 mm. In some embodiments, the length of the aerosol-generating material is preferably within the range of about 25 mm to 50 mm, more preferably about 30 mm to 45 mm, and even more preferably about 30 mm to 40 mm.

[0105] The volume of the aerosol-generating material provided is approximately 200 mm 3 ~approx. 4300mm 3 , preferably about 500 mm 3 ~1500mm 3 , more preferably about 1000 mm 3 ~approx. 1300mm 3 These volumes can vary, for example, around 1000 mm 3 ~approx. 1300mm 3 Advantageously, providing an aerosol-generating material of this volume has been shown to provide a superior aerosol with improved visibility and perceptibility performance compared to that achieved with volumes selected from the lower end of this range.

[0106] The mass of aerosol-forming material provided may be greater than 200 mg, for example, between about 200 mg and 400 mg, preferably between about 230 mg and 360 mg, and more preferably between about 250 mg and 360 mg. Advantageously, providing a greater mass of aerosol-forming material has been found to result in improved sensory performance compared to aerosols generated from smaller masses of tobacco material.

[0107] The aerosol-forming material or substrate is preferably formed from a tobacco material as described herein that includes a tobacco component.

[0108] In the tobacco materials described herein, the tobacco component preferably contains reconstituted tobacco. The tobacco component may also contain leaf tobacco, extruded tobacco, and / or band-cast tobacco.

[0109] The aerosol-generating material can include reconstituted tobacco material having a density of less than about 700 milligrams per cubic centimeter (mg / cc). It has been found that such tobacco materials are particularly effective at providing aerosol-generating materials that can be rapidly heated to release an aerosol, compared to materials with higher densities. For example, the inventors tested the properties of various aerosol-generating materials when heated, including band-cast reconstituted tobacco materials and paper reconstituted tobacco materials. It was found that for each given aerosol-generating material, there is a specific zero heat flow temperature below which, while heat is being applied to the material, the net heat flow is endothermic, meaning that more heat enters the material than leaves it; and above which, the net heat flow is exothermic, meaning that more heat enters the material than leaves it. Materials with densities less than 700 mg / cc had lower zero heat flow temperatures. Because a majority of the heat flow exiting the material is due to the formation of the aerosol, having a lower zero heat flow temperature has a beneficial effect on the time it takes to initially release the aerosol from the aerosol-generating material. For example, it has been found that aerosol-generating materials having densities less than 700 mg / cc have zero heat flow temperatures less than 164° C., compared to materials having densities greater than 700 mg / cc having zero heat flow temperatures greater than 164° C.

[0110] The density of the aerosol-generating material also affects the rate at which heat is conducted through the material; at lower densities, e.g., below 700 mg / cc, heat will conduct through the material more slowly, thus allowing for a more sustained aerosol release.

[0111] Preferably, the aerosol-forming material comprises a reconstituted tobacco material, such as a paper reconstituted tobacco material, having a density of less than about 700 mg / cc. More preferably, the aerosol-forming material comprises a reconstituted tobacco material having a density of less than about 600 mg / cc. Alternatively or additionally, the aerosol-forming material preferably comprises a reconstituted tobacco material having a density of at least 350 mg / cc, which is believed to allow for a sufficient amount of heat conduction in the material.

[0112] The tobacco material can be provided in the form of cut rag tobacco. The cut rag tobacco can have a cut width of at least 15 notches per inch (approximately 5.9 notches per cm, equivalent to a cut width of approximately 1.7 mm). The cut rag tobacco preferably has a cut width of at least 18 notches per inch (approximately 7.1 notches per cm, equivalent to a cut width of approximately 1.4 mm), more preferably at least 20 notches per inch (approximately 7.9 notches per cm, equivalent to a cut width of approximately 1.27 mm). In one example, the cut rag tobacco has a cut width of 22 notches per inch (approximately 8.7 notches per cm, equivalent to a cut width of approximately 1.15 mm). Preferably, the cut rag tobacco has a cut width of 40 notches per inch (approximately 15.7 notches per cm, equivalent to a cut width of approximately 0.64 mm). It has been found that a cut width of 0.5 mm to 2.0 mm, for example 0.6 mm to 1.5 mm, or 0.6 mm to 1.7 mm, results in a preferred tobacco material, particularly with respect to the surface area to volume ratio when heated, and the overall density and pressure drop of the substrate 3. The cut rag tobacco can be formed from a mixture of tobacco material forms, for example a mixture of one or more of reconstituted tobacco, leaf tobacco, extruded tobacco, and band-cast tobacco. Preferably, the tobacco material comprises reconstituted tobacco or a mixture of reconstituted tobacco and leaf tobacco.

[0113] In the tobacco materials described herein, the tobacco material can contain a filler component. The filler component is generally a non-tobacco component, i.e., a component that does not contain tobacco-derived materials. The filler component can be a non-tobacco fiber, such as wood fiber or pulp or wheat fiber. The filler component can also be an inorganic material, such as chalk, perlite, vermiculite, diatomaceous earth, colloidal silica, magnesium oxide, magnesium sulfate, magnesium carbonate, etc. The filler component can also be a non-tobacco casting material or a non-tobacco extrusion material. The filler component can be present in an amount of 0-20% by weight of the tobacco material, or in an amount of 1-10% by weight of the composition. In some embodiments, no filler component is present.

[0114] In the tobacco materials described herein, the tobacco material contains an aerosol-forming material. In this context, an "aerosol-forming material" is an agent that promotes the generation of an aerosol. The aerosol-forming material can promote the generation of an aerosol by promoting the initial vaporization and / or condensation of the gas into an inhalable solid and / or liquid aerosol. In some embodiments, the aerosol-forming material can improve the delivery of flavorants from the aerosol-forming material. Generally, any suitable aerosol-forming material or agent can be included in the aerosol-forming materials of the present invention, including those described herein. Other suitable aerosol-forming materials include, but are not limited to, polyols such as sorbitol, glycerol, and glycols such as propylene glycol or triethylene glycol; non-polyols such as monohydric alcohols, high-boiling hydrocarbons; acids such as lactic acid; glycerol derivatives; esters such as diacetin, triacetin, triethylene glycol diacetate, triethyl citrate; or myristic acid, including ethyl myristate and isopropyl myristate, and aliphatic carboxylic acid esters such as methyl stearate, dimethyl dodecanedioate, and dimethyl tetradecanedioate. In some embodiments, the aerosol-forming material can be glycerol, propylene glycol, or a mixture of glycerol and propylene glycol. Glycerol can be present in an amount of 10-20% by weight of the tobacco material, for example, 13-16% by weight of the composition, or about 14% or 15% by weight of the composition. Propylene glycol, when present, can be present in an amount of 0.1-0.3% by weight of the composition.

[0115] The aerosol-forming material can be included in any component of the tobacco material, such as any tobacco component and / or filler component, if present. Alternatively, or in addition, the aerosol-forming material can be added separately to the tobacco material. In either case, the total amount of aerosol-forming material within the tobacco material can be as defined herein.

[0116] The tobacco material can contain 10% to 90% by weight of tobacco leaf, with the aerosol-forming material being provided in an amount of up to about 10% by weight of the tobacco leaf. Advantageously, it has been found that this can be added in a greater weight percentage than another component of the tobacco material, such as reconstituted tobacco material, to achieve an overall level of aerosol-forming material of 10% to 20% by weight of the tobacco material.

[0117] The tobacco material described herein contains nicotine. The nicotine content can be 0.5-1.75% by weight of the tobacco material, for example, 0.8-1.5% by weight of the tobacco material. Additionally or alternatively, the tobacco material contains 10%-90% by weight of tobacco leaf and has a nicotine content greater than 1.5% by weight of the tobacco leaf. Advantageously, it has been found that using tobacco leaf having a nicotine content greater than 1.5% in combination with a lower nicotine matrix, such as reconstituted tobacco, provides a tobacco material with an appropriate nicotine level yet with better sensory performance than reconstituted tobacco alone. Tobacco leaf, such as cut rag tobacco, can have a nicotine content of 1.5%-5% by weight of the tobacco leaf.

[0118] The tobacco material described herein may contain an aerosol modifying agent, such as any of the flavorings described herein. In one embodiment, the tobacco material contains menthol to form a mentholated article. The tobacco material may contain 3 mg to 20 mg of menthol, preferably 5 mg to 18 mg, and more preferably 8 mg to 16 mg of menthol. In this example, the tobacco material contains 16 mg of menthol. The tobacco material may contain 2% to 8% by weight of menthol, preferably 3% to 7% by weight of menthol, and more preferably 4% to 5.5% by weight of menthol. In one embodiment, the tobacco material contains 4.7% by weight of menthol. Such high levels of menthol loading can be achieved by using a high proportion of reconstituted tobacco material, for example, greater than 50% by weight of the tobacco material. Alternatively or additionally, the achievable menthol loading level can be increased by using a larger amount of aerosol-generating material, such as tobacco material, for example, about 500 mm. 3 More than, or preferably about 1000 mm 3 More aerosol-forming material, such as tobacco material, is used.

[0119] In some examples, the mouthpiece downstream of the aerosol-generating material can include a paper wrapper, such as a first inner paper wrapper, a second outer paper wrapper, a first or second plug wrap, or tipping paper, where the paper wrapper includes an aerosol modifier as described herein. The aerosol modifier can be disposed on the inner or outer surface of the mouthpiece paper wrapper. For example, the aerosol modifier can be provided on an area of ​​the paper wrapper that contacts the consumer's lips during use, such as the outer surface of the tipping paper. By disposing the aerosol modifier on the outer surface of the mouthpiece paper wrapper, the aerosol modifier can be delivered to the consumer's lips during use. Delivery of the aerosol modifier to the consumer's lips during use can modify the organoleptic properties (e.g., taste) of the aerosol generated by the aerosol-generating substrate or can otherwise provide the consumer with an alternative sensory experience. For example, the aerosol modifier can impart a fragrance to the aerosol generated by the aerosol-generating substrate. The aerosol modifier can be at least partially water-soluble so that it can be delivered to the user by the consumer's saliva. The aerosol modifier can be one that is volatilized by the heat generated by the aerosol delivery system, thereby facilitating transfer of the aerosol modifier to the aerosol generated by the aerosol-generating substrate. Suitable sensate materials can include flavors described herein, cooling agents such as sucralose, or menthol.

[0120] For the compositions described herein, when amounts are given in weight percent, this refers to dry basis weight unless specifically indicated to the contrary, for the avoidance of doubt. Therefore, for the purposes of determining weight percent, any water that may be present in the tobacco material or any of its components is completely disregarded. The moisture content of the tobacco materials described herein may vary, for example, from 5 to 15 weight percent. The moisture content of the tobacco materials described herein may vary, for example, according to the temperature, pressure, and humidity conditions under which the compositions are maintained. The moisture content can be determined by Karl Fischer analysis, as known to those skilled in the art. On the other hand, for the avoidance of doubt, even when the aerosol-forming material is a liquid-phase component, such as glycerol or propylene glycol, all components other than water are included in the weight of the tobacco material. However, when an aerosol-forming material is provided within the tobacco component of the tobacco material or within a filler component (if present) of the tobacco material instead of or in addition to being added separately to the tobacco material, the aerosol-forming material is not included in the weight of the tobacco component or filler component, but is included in the weight of the "aerosol-forming material" at the weight percent defined herein. All other materials present in the tobacco component are included in the weight of the tobacco component, even if they are of non-tobacco origin (eg, non-tobacco fiber in the case of reconstituted tobacco).

[0121] In one embodiment, the tobacco material comprises a tobacco component as defined herein and an aerosol-forming material as defined herein. In one embodiment, the tobacco material consists essentially of a tobacco component as defined herein and an aerosol-forming material as defined herein. In one embodiment, the tobacco material consists of a tobacco component as defined herein and an aerosol-forming material as defined herein.

[0122] The reconstituted tobacco is present in the tobacco component of the tobacco material described herein in an amount of 10% to 100% by weight of the tobacco component. In embodiments, the reconstituted tobacco is present in an amount of 10% to 80% by weight or 20% to 70% by weight of the tobacco component. In further embodiments, the tobacco component consists essentially of reconstituted tobacco, or consists of reconstituted tobacco. In a preferred embodiment, the leaf tobacco is present in the tobacco component of the tobacco material in an amount of at least 10% by weight of the tobacco component. For example, the leaf tobacco can be present in an amount of at least 10% by weight of the tobacco component, with the remainder of the tobacco component comprising reconstituted tobacco, band-cast reconstituted tobacco, or a combination of band-cast reconstituted tobacco and another form of tobacco, such as tobacco granules.

[0123] Reconstituted tobacco refers to tobacco material formed by a process in which raw tobacco material is extracted with a solvent to give a residue extract containing solubles and fibrous material, and then the extract (usually after concentration, and optionally after further processing) is recombined with fibrous material from the residue by depositing the extract on the fibrous material (usually after purification of the fibrous material, and optionally adding a portion of non-tobacco fiber). The recombination process is similar to the papermaking process.

[0124] The reconstituted tobacco can be any type of reconstituted tobacco known in the art. In certain embodiments, the reconstituted tobacco is made from raw materials including one or more of tobacco strips, tobacco stems, and whole leaf tobacco. In further embodiments, the reconstituted tobacco is made from raw materials consisting of tobacco strips and / or whole leaf tobacco, and tobacco stems. However, in other embodiments, raw materials can alternatively or additionally include shreds, fines, and husks.

[0125] Reconstituted tobacco for use in the tobacco materials described herein can be prepared by methods known to those skilled in the art for preparing reconstituted tobacco.

[0126] As used herein, the term "tobacco material" refers to any material containing tobacco or its derivatives or substitutes. The term "tobacco material" can include one or more of tobacco, tobacco derivatives, expanded tobacco, reconstituted tobacco, or tobacco substitutes. Tobacco materials can include one or more of ground tobacco, tobacco fiber, cut tobacco, extruded tobacco, tobacco stems, tobacco leaf, reconstituted tobacco, and / or tobacco extracts.

[0127] As used herein, the terms "flavoring agent" and "flavoring agent" refer to materials that, where local regulations permit, can be used to impart a desired taste or odor to products intended for adult consumers. One or more flavoring agents can be used as aerosol modifiers as described herein.

[0128] Flavoring agents include extracts (e.g., licorice, hydrangea, magnolia leaf, chamomile, fenugreek, clove, menthol, peppermint, aniseed, cinnamon, herbs, wintergreen, cherry, berry, peach, apple, Drambuie, bourbon, scotch, whiskey, spearmint, peppermint, lavender, cardamom, celery, cascarilla, nutmeg, sandalwood, bergamot, geranium, honey essence, rose oil, vanilla, lemon oil, orange oil, cassia, caraway, cognac, jasmine, ylang) The flavoring agent may include other additives such as ylang, sage, fennel, bell pepper, ginger, anise, coriander, coffee, or mint oil from any species of the genus Mentha), flavor enhancers, bitter taste receptor site blockers, sensory receptor site activators or stimulants, sugars and / or sugar substitutes (e.g., sucralose, acesulfame potassium, aspartame, saccharin, cyclamate, lactose, sucrose, glucose, fructose, sorbitol, or mannitol), and other additives such as charcoal, chlorophyll, minerals, botanicals, or breath fresheners. The flavoring agent may be an imitation, a synthetic, or natural ingredient, or a mixture thereof. The flavoring agent may be in any suitable form, such as an oil, liquid, or powder.

[0129] Typically, a non-combustion aerosol delivery system can include a non-combustion aerosol delivery device and an article for use with the non-combustion aerosol delivery system, however, it is also contemplated that an article that includes a means for powering an aerosol generating component can itself form the non-combustion aerosol delivery system.

[0130] In one embodiment, the non-combustion aerosol delivery device can include a power source and a controller. The power source can be a power source or a heat source. In one embodiment, the heat source comprises a carbon substrate that can be excited to dissipate power in the form of heat to an aerosolizable material or a heat transfer material in proximity to the heat source. In one embodiment, a power source, such as a heat source, is provided within the article to form the non-combustion aerosol delivery.

[0131] In one embodiment, an article for use with a non-combustion aerosol delivery device can include an aerosolizable material, an aerosol-generating component, an aerosol-generating area, a mouthpiece, and / or an area for receiving the aerosolizable material.

[0132] In one embodiment, the aerosol-generating component is a heater capable of interacting with the aerosolizable material to liberate one or more volatile substances from the aerosolizable material and form an aerosol. In one embodiment, the aerosol-generating component is capable of generating an aerosol from the aerosolizable material without the application of heat. For example, the aerosol-generating component may be capable of generating an aerosol from the aerosolizable material without the application of heat, e.g., by one or more of vibrational, mechanical, pressurized, or electrostatic means.

[0133] In one embodiment, the aerosolizable material can include an active material, an aerosol-forming material, and optionally one or more functional materials. The active material can include nicotine (optionally contained in tobacco or a tobacco derivative) or one or more other non-olfactory bioactive materials. Non-olfactory bioactive materials are materials included in the aerosolizable material to achieve a physiological response other than olfaction.

[0134] The aerosol-forming material may include one or more of glycerin, glycerol, propylene glycol, diethylene glycol, triethylene glycol, tetraethylene glycol, 1,3-butylene glycol, erythritol, mesoerythritol, ethyl vanillate, ethyl laurate, diethyl suberate, triethyl citrate, triacetin, diacetin mixtures, benzyl benzoate, benzyl phenylacetate, tributyrin, lauryl acetate, lauric acid, myristic acid, and propylene carbonate.

[0135] The one or more functional ingredients may include one or more of a fragrance, a carrier, a pH adjuster, a stabilizer, and / or an antioxidant.

[0136] In one embodiment, an article for use with a non-combustion aerosol delivery device can include an aerosolizable material or an area for receiving an aerosolizable material. In one embodiment, an article for use with a non-combustion aerosol delivery device can include a mouthpiece. The area for receiving an aerosolizable material can be a storage area for storing the aerosolizable material. For example, the storage area can be a reservoir. In one embodiment, the area for receiving an aerosolizable material can be separate from the aerosol-generation area or can be combined with the aerosol-generation area.

[0137] Aerosolizable materials, sometimes referred to herein as aerosol-generating materials, are materials capable of generating an aerosol when excited, for example, by heating, irradiation, or in any other manner. Aerosolizable materials can be, for example, in the form of a solid, liquid, or gel, and may or may not contain nicotine and / or flavorings. In some embodiments, the aerosolizable material can include an "amorphous solid," which may alternatively be referred to as a "monolithic solid" (i.e., non-fibrous). In some embodiments, the amorphous solid can be a dry gel. An amorphous solid is a solid material that can retain some fluid, such as a liquid, within it. In some embodiments, the aerosolizable material can include, for example, about 50%, 60%, or 70% by weight of an amorphous solid to about 90%, 95%, or 100% by weight of an amorphous solid.

[0138] The aerosolizable material can be present on a substrate, which can be or include, for example, paper, card, paperboard, cardboard, recycled aerosolizable material, plastic material, ceramic material, composite material, glass, metal, or metal alloy.

[0139] Aerosol modifiers are substances capable of modifying aerosols during use. Aerosol modifiers can modify aerosols to impart physiological or sensory effects to the human body. Exemplary aerosol modifiers are flavors and sensates. Sensates produce an organoleptic sensation that can be perceived by the senses, such as a cool or sour sensation.

[0140] The susceptor is a material that can be heated by penetration by a varying magnetic field, such as an alternating magnetic field. The heating material can be a conductive material, such that penetration of the conductive material by the varying magnetic field causes induction heating of the heating material. The heating material can be a magnetic material, such that penetration of the magnetic material by the varying magnetic field causes magnetic hysteresis heating of the heating material. The heating material can be both conductive and magnetic, such that the heating material can be heated by either heating mechanism.

[0141] Induction heating is a process in which a conductive object is heated by penetrating a varying magnetic field into the object. This process is explained by Faraday's law of electromagnetic induction and Ohm's law. An induction heater can include an electromagnet and a device for passing a varying current, such as an alternating current, through the electromagnet. When the electromagnet and the object to be heated are suitably positioned relative to one another so that the resulting varying magnetic field produced by the electromagnet penetrates the object, one or more eddy currents are generated within the object. The object has a resistance to the flow of current. Therefore, when such eddy currents are generated within the object, they flow against the object's electrical resistance, causing the object to heat. This process is called Joule, Ohmic, or resistive heating. An object that can be inductively heated is known as a susceptor.

[0142] 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 during use is promoted, resulting in greater or improved Joule heating.

[0143] Magnetic hysteresis heating is a process by which an object made from a magnetic material is heated by the penetration of a varying magnetic field into the object. A magnetic material can be thought of as containing many atomic-scale magnets, or magnetic dipoles. When a magnetic field penetrates such a material, the magnetic dipoles become aligned with the field. Thus, when a varying magnetic field, such as an alternating magnetic field provided by an electromagnet, penetrates a magnetic material, the orientation of the magnetic dipoles changes with the variation of the applied field. This reorientation of the magnetic dipoles generates heat within the magnetic material.

[0144] When an object is both conductive and magnetic, a varying magnetic field penetrating the object can cause both Joule heating and magnetic hysteresis heating in the object. Furthermore, the magnetic field can be reinforced by the use of magnetic materials, thereby enhancing Joule heating.

[0145] In each of the above processes, because heat is generated within the object itself rather than from an external heat source via thermal conduction, rapid temperature rise and more uniform heat distribution in the object can be achieved, particularly by selecting a suitable object material and geometry and a suitable magnitude and orientation of the varying magnetic field relative to the object. Furthermore, induction heating and magnetic hysteresis heating do not require providing a physical connection between the varying magnetic field source and the object, allowing for greater design freedom and control and lower costs compared to heating profiles.

[0146] A non-combustion aerosol delivery device can be used to heat the aerosol-forming material of the articles described herein. In some embodiments, the invention provides a system comprising an article and a non-combustion aerosol delivery device for heating the aerosol-forming material of the article.

[0147] Preferably, the non-combustion aerosol delivery device includes a coil, as this has been found to allow improved heat transfer to the article compared to other configurations. In some examples, the coil is configured to cause heating of at least one conductive heating element during use, thereby allowing thermal energy to be conducted from the at least one conductive heating element to the aerosol-generating material, thereby causing heating of the aerosol-generating material.

[0148] In some examples, the coil is configured to generate a varying magnetic field that penetrates at least one heating element during use, thereby causing inductive heating and / or magnetic hysteresis heating of the at least one heating element. In such configurations, the or each heating element may be referred to as a "susceptor," as defined herein. A coil configured to generate a varying magnetic field that penetrates at least one conductive heating element during use, thereby causing inductive heating of the at least one conductive heating element may be referred to as an "induction coil" or "inductor coil."

[0149] The device can include heating element(s), for example, conductive heating element(s), and the heating element(s) can be suitably positioned or positionable relative to the coil to enable such heating of the heating element(s). The heating element(s) can be in a fixed position relative to the coil. Alternatively, at least one heating element, for example, at least one conductive heating element, can be included in an article for insertion into a heating section of the device, the article also comprising an aerosol-generating material and removable from the heating section after use. Alternatively, both the device and such article can include at least one respective heating element, for example, at least one conductive heating element, and the coil can be for causing heating of the respective heating element(s) of the device and article when the article is within the heating section.

[0150] In some examples, the coil is helical. In some examples, the coil surrounds at least a portion of a heated section of a device configured to receive an aerosol-generating material. In some examples, the coil is a helical coil that surrounds at least a portion of the heated section.

[0151] In some examples, the device includes a conductive heating element at least partially surrounding the heating section, and the coil is a helical coil surrounding at least a portion of the conductive heating element. In some examples, the conductive heating element is tubular. In some examples, the coil is an inductor coil.

[0152] In some examples, the use of a coil allows a non-combustion aerosol delivery device to reach an operating temperature more quickly than a non-coil aerosol delivery device. For example, a non-combustion aerosol delivery device including the coil described above can reach an operating temperature so as to provide a first puff in less than 30 seconds, more preferably less than 25 seconds, from the start of a device heating program. In some examples, the device can reach an operating temperature in about 20 seconds from the start of a device heating program.

[0153] It has been found that using the coils described herein in devices to cause heating of the aerosol-generating material enhances the resulting aerosol. For example, consumers have reported that the aerosol generated by devices including coils such as those described herein feels closer in feel to that generated by factory-made cigarette (FMC) products than aerosols obtained with other non-combustion aerosol delivery systems. Without wishing to be bound by theory, it is hypothesized that this is a result of the reduced time to reach the required heating temperature when coils are used, the higher heating temperatures achievable when coils are used, and / or the fact that coils allow such systems to simultaneously heat a relatively large volume of aerosol-generating material, resulting in aerosol temperatures similar to FMC aerosol temperatures. In FMC products, hot aerosols are generated by burning coals, which heat the tobacco in the tobacco rod behind the coals as the aerosol is drawn through the rod. It is understood that this hot aerosol liberates flavor compounds from the tobacco in the rod behind the burning coals. Devices including the coils described herein are also believed to be capable of heating aerosol-forming materials, such as the tobacco materials described herein, to release flavor compounds, resulting in aerosols that are reportedly more similar to FMC aerosols.

[0154] The use of an aerosol delivery system including a coil as described herein, e.g., an induction coil that heats at least a portion of the aerosol-forming material to at least 200°C, more preferably at least 220°C, can enable the generation of aerosols from the aerosol-forming material having particular properties that are believed to be more similar to those of FMC products. For example, when an induction heater is used to heat an aerosol-forming material containing nicotine that is heated to at least 250°C for a period of 2 seconds under an air flow of at least 1.50 L / m during this period, one or more of the following properties are observed:

[0155] At least 10 μg of nicotine is aerosolized from the aerosol-forming material.

[0156] The aerosol-forming material provides a weight ratio of generated aerosol to nicotine of at least about 2.5:1, preferably at least 8.5:1.

[0157] At least 100 μg of aerosol-forming material can be aerosolized from the aerosol-generating material.

[0158] The average particle or droplet size within the generated aerosol is less than about 1000 nm.

[0159] The aerosol density is at least 0.1 μg / cc.

[0160] In some cases, at least 10 μg of nicotine, preferably at least 30 μg or 40 μg of nicotine, is aerosolized from the aerosol-forming material under an airflow of at least 1.50 L / m during the period. In some cases, less than about 200 μg of nicotine, preferably less than about 150 μg or less than about 125 μg of nicotine, is aerosolized from the aerosol-forming material under an airflow of at least 1.50 L / m during the period.

[0161] In some cases, at least 100 μg of aerosol-forming material, preferably at least 200 μg, 500 μg, or 1 mg of aerosol-forming material, is aerosolized from the aerosol-generating material under an airflow of at least 1.50 L / m during a period of time. Suitably, the aerosol-forming material can comprise or consist of glycerol.

[0162] As defined herein, the term "average particle or droplet size" refers to the average size of the solid or liquid components of the aerosol (i.e., the components suspended in the gas). When the aerosol contains suspended liquid droplets and suspended solid particles, the term refers to the average size of all components combined.

[0163] In some cases, the average particle or droplet size in the generated aerosol can be less than about 900 nm, 800 nm, 700 nm, 600 nm, 500 nm, 450 nm, or 400 nm. In some cases, the average particle or droplet size can be greater than about 25 nm, 50 nm, or 100 nm.

[0164] In some cases, the aerosol density generated during the period is at least 0.1 μg / cc. In some cases, the aerosol density is at least 0.2 μg / cc, 0.3 μg / cc, or 0.4 μg / cc. In some cases, the aerosol density is less than about 2.5 μg / cc, 2.0 μg / cc, 1.5 μg / cc, or 1.0 μg / cc.

[0165] Preferably, the non-combustion aerosol delivery device is arranged to heat the aerosol-forming material of the article to a maximum temperature of at least 160° C. Preferably, the non-combustion aerosol delivery device is arranged to heat the aerosol-forming material of the article 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., at least once during the heating process by the non-combustion aerosol delivery device.

[0166] Use of an aerosol delivery system including a coil described herein, such as an induction coil that heats at least a portion of the aerosol-generating material to at least 200°C, more preferably at least 220°C, can enable the generation of an aerosol from the aerosol-generating material in the article described herein that has a higher temperature when the aerosol leaves the mouth end of the mouthpiece 2 than previous devices, which can contribute to the generation of an aerosol that is considered more similar to an FMC product. For example, the maximum aerosol temperature measured at the mouth end of the article can be preferably greater than 50°C, more preferably greater than 55°C, and even more preferably greater than 56°C or 57°C. Additionally or alternatively, the maximum aerosol temperature measured at the mouth end of the article can be less than 62°C, more preferably less than 60°C, and more preferably less than 59°C. In some embodiments, the maximum aerosol temperature measured at the mouth end of the article can be preferably between 50°C and 62°C, more preferably between 56°C and 60°C.

[0167] 2 shows an example of a non-combustion aerosol delivery device 100 for generating an aerosol from an aerosol-generating medium / material, such as the aerosol-generating materials of the articles described herein. In summary, device 100 can be used to heat a replaceable article 110 comprising an aerosol-generating medium, such as an article described herein, to generate an aerosol or other inhalable medium that is inhaled by a user of device 100. Device 100 and replaceable article 110 together form a system.

[0168] The device 100 comprises a housing 102 (in the form of an outer cover) that surrounds and houses the various components of the device 100. The device 100 has an opening 104 at one end through which an item 110 can be inserted for heating by the heating assembly. In use, the item 110 can be fully or partially inserted into the heating assembly, where it can be heated by one or more components of the heater assembly.

[0169] The device 100 in this example includes a first end member 106 with a lid 108 movable relative to the first end member 106 to close the opening 104 when the item 110 is not in place. Although the lid 108 is shown in an open configuration in Figure 2, the lid 108 can also be moved to a closed configuration. For example, a user can slide the lid 108 in the direction of arrow "B."

[0170] Device 100 may also include a user-operable control element 112, such as a button or switch, that, when pressed, operates device 100. For example, a user may turn device 100 on by operating switch 112.

[0171] Device 100 may also include an electrical component, such as a socket / port 114 that can receive a cable to charge a battery in device 100. For example, socket 114 may be a charging port, such as a USB charging port.

[0172] The various embodiments described herein are presented solely to aid in the understanding and teaching of the claimed features. These embodiments are provided only as a representative sample of embodiments and are not exhaustive and / or exclusive. It is understood that the advantages, embodiments, examples, functions, features, structures, and / or other aspects described herein should not be construed as limitations on the scope of the invention as defined by the claims or on the equivalents of the claims, and that other embodiments may be utilized and modifications may be made without departing from the scope of the invention as claimed. It is preferred that the various embodiments of the invention may include, consist of, or consist essentially of any suitable combination of the disclosed elements, components, features, parts, steps, means, etc., other than those specifically described herein. In addition, the present disclosure may include other inventions not claimed herein but which may be claimed in the future.

[0173] Test Method: The following procedure (per ISO 1924-2) can be used to measure the wet and dry tensile strength of a paper web. The difference between wet and dry tensile strength is based on the sample conditions in the test method: wet tensile strength is measured using a wet sample, and dry tensile strength is measured using a dry sample.

[0174] device: Common tensile / compression testing machines: Instron 5566, etc.

[0175] 100 Newton tension load cell: Instron, etc.

[0176] Two pneumatic action grips.

[0177] Steel gauge block, length 180±0.25mm (width: approximately 10mm, thickness: approximately 3mm).

[0178] Computer-implemented acquisition software: Merlin, etc.

[0179] Strip cutter.

[0180] Sample preparation: If preparing dry samples, condition the web material at 22±2 degrees Celsius and 60±5% relative humidity for at least 24 hours prior to testing.

[0181] Using a strip cutter, cut test strips of the paper web to dimensions of approximately 250 x 15 ± 0.1 millimeters. The edges of the test specimen should be cleanly cut.

[0182] Wet samples can be prepared using the same technique, except that 2 microliters of water are added to the sample just before the measurement begins.

[0183] calibration: A 100 Newton tension load cell is installed.

[0184] Turn on the general tension / compression testing machine and computer.

[0185] Select a predefined measurement method within the software (test speed set to 8 millimeters per minute).

[0186] Calibrate the tension load cell.

[0187] Install a pneumatic action grip.

[0188] The test distance between the pneumatic action grips is adjusted to 180 ± 0.5 mm by means of a steel gauge block.

[0189] Set the distance and force to 0.

[0190] test: The test sample is placed squarely and centered between the grips.

[0191] Close the top grip.

[0192] Set the force to 0.

[0193] By maintaining a force on the test sample, the lower grip is gently pulled down onto the test sample to close it. The initial force should be between 0.05 and 0.20 Newtons.

[0194] Start the measurement. Calculation of tensile strength by formula: Tensile breaking strength = Maximum force during extension (N) / Width of test piece (mm)

Claims

1. 1. A mouthpiece for use in an aerosol delivery system, comprising: two or more cylindrical sections circumscribed by a first inner web and a second outer web; A mouthpiece wherein the first inner paper wrapper is a high wet strength paper wrapper having a wet tensile strength greater than 3 Newtons per 15 millimeters.

2. 2. The mouthpiece of claim 1, wherein the high wet strength paper wrapper has a wet tensile strength of about 3 Newtons per 15 millimeters to about 10 Newtons per 15 millimeters and / or a dry tensile strength of about 15 Newtons per 15 millimeters to about 40 Newtons per 15 millimeters.

3. The mouthpiece of claim 1 or 2, wherein the high wet strength paper wrapper has a basis weight of about 20 gsm to about 50 gsm, preferably about 20 gsm to about 30 gsm.

4. The mouthpiece of any one of claims 1 to 3, wherein the second outer wrapper is a porous wrapper, and optionally the porous wrapper has a permeability of from about 2,000 Coresta units to about 10,000 Coresta units.

5. The mouthpiece of any one of claims 1 to 4, wherein the first cylindrical section comprises a hollow tubular element formed from filament tow.

6. 6. The mouthpiece of claim 5, wherein the filament tows forming the hollow tubular element have a single fineness of 5 to 12 and a total fineness of 8,000 to 50,000.

7. The mouthpiece of any one of claims 1 to 6, wherein the second cylindrical section comprises a body of material formed from filament tow.

8. 8. The mouthpiece of claim 7, wherein the filament tows forming the body of material have a single fineness of 5 to 12 and a total fineness of 8,000 to 30,000.

9. 9. A mouthpiece according to claim 7 or 8, wherein at least one capsule is embedded within the body of material.

10. A mouthpiece according to any one of claims 1 to 9, wherein the mouthpiece comprises a third cylindrical section comprising a second hollow tubular element.

11. The mouthpiece of claim 10, wherein the second cylindrical section is disposed between the first cylindrical section and the third cylindrical section.

12. 12. The mouthpiece of claim 10 or 11, wherein the second hollow tubular element is formed from a plurality of paper layers.

13. The mouthpiece of any one of claims 10 to 12, wherein the third cylindrical section is not wrapped by the first wrapping paper and is optionally wrapped by the second wrapping paper.

14. The mouthpiece is about 450 mm ３ A mouthpiece according to any one of claims 1 to 13, comprising a cavity with a larger internal volume.

15. 1. An article for use in an aerosol delivery system, comprising: a compartment containing an aerosol-forming material; and An article comprising the mouthpiece according to any one of claims 1 to 14.

16. 16. The article of claim 15, wherein the mouthpiece and the section of aerosol-forming material are held together by tipping paper that circumscribes at least a portion of the mouthpiece and a portion of the section of aerosol-forming material.

17. 17. The article of claim 15 or 16, wherein the section of aerosol-forming material is enmeshed within a third web having a permeability of less than about 100 Coresta units, less than about 80 Coresta units, less than about 60 Coresta units, or less than about 20 Coresta units.

18. The article of any one of claims 15 to 17, comprising a circumference of about 19 mm to about 23 mm.

19. A system comprising the article of any one of claims 14 to 18 and a non-combustible aerosol delivery device for heating the aerosol-forming material of the article.

20. 20. The system of claim 19, wherein the first and second cylindrical sections of the mouthpiece are not directly heated by the device.

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