CN117098466A

CN117098466A - Aerosol-generating article

Info

Publication number: CN117098466A
Application number: CN202280023969.3A
Authority: CN
Inventors: 张锡水; 韩大男; 金东星; 金龙焕; 李承原
Original assignee: KT&G Corp
Current assignee: KT&G Corp
Priority date: 2021-05-14
Filing date: 2022-05-13
Publication date: 2023-11-21
Also published as: KR20220155624A; EP4337036A1; WO2022240249A1; JP2024516847A

Abstract

An aerosol-generating article according to an aspect of the disclosure may comprise: a tobacco media portion; a filter portion disposed in spaced relation to the tobacco media portion; and a tubular cooling portion disposed between the tobacco media portion and the filter portion. The inner peripheral surface of the cooling portion may comprise a nicotine component.

Description

Aerosol-generating article

Technical Field

The present disclosure relates to aerosol-generating articles and aerosol-generating devices.

Background

Tobacco generally refers to perennial herbs belonging to the family Solanaceae, and recently also refers to products consisting of tobacco leaves in cigarette paper with a filter on one side for the purpose of smoking. There are thousands of tobacco products on the global market, which come in various shapes and forms.

In the case of combustible tobacco products such as cigarettes, cigars and hookahs, tobacco smoke contains a variety of components such as tar, nitrosamine, hydrocarbons and carbon monoxide in addition to the nicotine-containing aerosol.

As an alternative to compensating for the disadvantages of these combustible tobacco products, methods of generating aerosols by heating aerosol-generating substances in cigarettes rather than burning cigarettes are widely used and the need for such is increasing. In order to meet such a demand, studies on heating cigarettes or heating type aerosol-generating devices are actively being conducted.

In particular, the aerosol-generating device has a form similar to that of a conventional combustible tobacco product, and the aerosol-generating device generates mainstream smoke comprising an aerosol by heating aerosol-generating material in a heated cigarette by means such as a heater or ultrasonic vibration. The aerosol generating device has the advantages of minimizing the emission of tar and other components, and simultaneously playing a role in providing the smoker with smoking satisfaction. Thus, there is a new market for replacement of traditional combustible tobacco products.

In the case of a heated cigarette, i.e. an aerosol-generating article, used in an aerosol-generating device, the amount of nicotine delivered to the user may be high during the early stages of smoking, however, the amount of nicotine delivered to the user may be drastically reduced during the later stages of smoking.

Disclosure of Invention

Technical problem

Accordingly, the present disclosure has been made keeping in mind the above problems occurring in the prior art, and an object of the present disclosure is to provide an aerosol-generating article which does not result in a reduction in the amount of nicotine delivered to a user at a later stage of smoking.

It is another object of the present disclosure to provide an aerosol-generating article that is capable of efficiently cooling a high temperature aerosol heated in a tobacco media portion.

Technical proposal for solving the technical problems

According to one aspect of the present disclosure there is provided an aerosol-generating article comprising: a tobacco media portion; a filter portion disposed in spaced relation to the tobacco media portion; and a tubular cooling portion disposed between the tobacco media portion and the filter portion. The inner peripheral surface of the cooling portion may comprise a nicotine component.

Advantageous effects of the invention

An aerosol-generating article according to an aspect of the present disclosure may deliver a large amount of nicotine to a user, even at a later stage of smoking.

In addition, the high-temperature aerosol heated in the tobacco medium portion can be effectively cooled.

Drawings

In order for those of ordinary skill in the art to understand the present disclosure, a more particular description may be rendered by reference to aspects of some exemplary embodiments, some of which are illustrated in the appended drawings.

Fig. 1 is a schematic exploded perspective view illustrating an aerosol-generating article according to an embodiment of the present disclosure.

Fig. 2 is a schematic perspective view illustrating an aerosol-generating article according to an embodiment of the present disclosure.

Fig. 3 is an enlarged view of the inside of the section a shown in fig. 2.

Fig. 4 is a cross-sectional view illustrating an aerosol-generating article according to an embodiment of the present disclosure.

Fig. 5 to 7 are views showing modified examples of tobacco media portions of an aerosol-generating article according to an embodiment of the present disclosure.

Fig. 8 is a view showing a modified example of a filter portion of an aerosol-generating article according to an embodiment of the disclosure.

Fig. 9 is a view schematically showing a process of cooling mainstream smoke by tobacco medium of the cooling portion.

Fig. 10 is a view showing the amount of nicotine delivered by an aerosol-generating article according to an embodiment of the present disclosure.

Fig. 11 is a view schematically showing a process of applying a tobacco medium to an inner peripheral surface of a cooling portion.

Fig. 12 to 19 are views showing modified examples of a cooling portion of an aerosol-generating article according to an embodiment of the present disclosure.

Fig. 20 is a schematic view showing a configuration of an aerosol-generating device into which an aerosol-generating article according to an embodiment of the present disclosure is inserted.

In accordance with common practice, the various features shown in the drawings may not be drawn to scale. Accordingly, the dimensions of the various features may be arbitrarily expanded or reduced for clarity. Additionally, some of the figures may not depict all of the components of a given system, method, or apparatus. Finally, the same reference numerals may be used to denote the same features throughout the specification and figures.

Detailed Description

Best mode for carrying out the invention

In some implementations, an aerosol-generating article may include: a tobacco media portion; a filter portion disposed in spaced relation to the tobacco media portion; and a tubular cooling portion disposed between the tobacco media portion and the filter portion. The inner peripheral surface of the cooling portion may comprise a nicotine component.

In some implementations, the nicotine component of the inner peripheral surface may be uniformly disposed on the inner peripheral surface along the longitudinal direction of the cooling portion.

In some implementations, the nicotine component of the inner peripheral surface may be arranged in a manner in the range of 0.1mg/mm to 1.0mg/mm along the longitudinal direction of the cooling portion.

In some implementations, the nicotine component of the inner peripheral surface may be unevenly disposed on the inner peripheral surface along the longitudinal direction of the cooling portion.

In some implementations, the concentration of the nicotine component of the inner peripheral surface may be higher at an inlet side of the cooling portion adjacent the tobacco media portion than at an outlet side of the cooling portion adjacent the filter portion.

In some implementations, the concentration of the nicotine component of the inner peripheral surface may be lower at an inlet side of the cooling portion adjacent the tobacco media portion than at an outlet side of the cooling portion adjacent the filter portion.

In some implementations, the concentration of the nicotine component of the inner peripheral surface may be higher in a central region of the cooling portion than in opposite end regions of the cooling portion.

In some implementations, the concentration of the nicotine component of the inner peripheral surface may be lower in a central region of the cooling portion than in opposite end regions of the cooling portion.

In some implementations, the nicotine component of the inner peripheral surface may be provided in only a partial section of the inner peripheral surface along the longitudinal direction of the cooling portion.

In some implementations, the cooling portion may include cellulose acetate tow.

In some implementations, a scented material may also be included in the walls that make up the cooling portion.

In some implementations, the nicotine component of the inner peripheral surface may be a liquid nicotine solution or nicotine salt.

In some implementations, the nicotine component of the inner peripheral surface may be disposed in a wall constituting the cooling portion.

In some implementations, the tobacco media portion may include a plurality of segments.

In some implementations, at least one of the plurality of segments may include tobacco media.

In some implementations, an aerosol-generating device according to another aspect of the disclosure may include: a heater for heating at least a portion of the aerosol-generating article; a power supply for supplying power to the heater; and a controller for controlling the electric power supplied to the electric power supply.

In some implementations, the aerosol-generating device may further comprise an aerosol generator for generating an aerosol by heating the liquid composition. The aerosol generated by the aerosol generator may be incorporated into an aerosol-generating article.

The present disclosure is not limited to what has been described above, and other aspects and advantages of the present disclosure not mentioned above will be understood by the following description of the implementation of the present disclosure. Furthermore, it will be understood that aspects and advantages of the present disclosure may be realized by the configurations and combinations thereof described in the claims.

Aspects of the invention

Reference will now be made in detail to the various embodiments of the present disclosure, specific examples of which are illustrated in the accompanying drawings and described below, as the embodiments of the present disclosure may be variously modified in many different forms. However, the disclosure should not be construed as limited to the embodiments set forth herein, but rather as covering modifications, equivalents, or alternatives falling within the spirit and scope of the disclosure.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise. It will be further understood that the terms "comprises," "comprising," "includes," "including" and/or "having," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, components, and/or groups thereof, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.

Hereinafter, exemplary embodiments of the present disclosure will be described in detail with reference to the accompanying drawings. The same reference numbers will be used throughout the drawings to refer to the same or like elements or parts. Further, it should be noted that when the functions of conventional elements and detailed descriptions of elements related to the present disclosure may obscure the gist of the present disclosure, the detailed descriptions of these elements will be omitted. For the same reason, some components will be exaggerated, omitted, or schematically shown in the drawings.

Hereinafter, an aerosol-generating article according to an embodiment of the present disclosure will be described.

Fig. 1 is a schematic exploded perspective view illustrating an aerosol-generating article according to an embodiment of the present disclosure. Fig. 2 is a schematic perspective view illustrating an aerosol-generating article according to an embodiment of the present disclosure. Fig. 3 is an enlarged view of the inside of the section a shown in fig. 2. Fig. 4 is a cross-sectional view illustrating an aerosol-generating article according to an embodiment of the present disclosure.

Referring to fig. 1-4, an aerosol-generating article 100 according to an embodiment of the present disclosure may include a tobacco media portion 110, a cooling portion 130, a filter portion 150, and a wrapper 170. Here, one of ordinary skill in the art relating to the present embodiment will appreciate that other general components besides those shown in fig. 1-4 may also be included in the aerosol-generating article 100.

The aerosol-generating article 100 according to the present embodiment may be heated by being inserted into an aerosol-generating device 300 (see fig. 20), the aerosol-generating device 300 being described later. In this case, the mainstream smoke can be delivered to the user as the aerosol-generating article 100 is heated. The mainstream smoke can be an airflow that flows from upstream to downstream within the aerosol-generating article 100. Here, the term "upstream" may refer to the side of the tobacco media portion 110, and the term "downstream" may refer to the side of the filter portion 150. A user of the aerosol-generating article 100 may inhale the mainstream smoke through the downstream end portion of the aerosol-generating article 100.

The aerosol-generating article 100 may have a cylindrical shape. In this case, the diameter of the aerosol-generating article 100 may be in the range of 4.7mm to 9.9 mm. Each of the tobacco media portion 110, the cooling portion 130, and the filter portion 150 may also have a cylindrical shape having a diameter of 4.7mm to 9.9 mm.

In addition, the length of the aerosol-generating article 100 may be in the range of 31mm to 60 mm. The length of the tobacco media portion 110 may be in the range of 17mm to 30 mm. The length of the cooling portion 130 may be in the range of 4mm to 10mm, and the length of the filter portion 150 may be in the range of 10mm to 20 mm.

The shape, diameter, and length of the aerosol-generating article 100 and components of the aerosol-generating article 100 are exemplary and the disclosure is not necessarily limited thereto. The shape and size of the aerosol-generating article 100 may be partially varied within the scope of what one skilled in the art would be able to employ.

The tobacco media portion 110 is located on the upstream side of the aerosol-generating article 100 and may comprise tobacco media that generates an aerosol. The tobacco media of the tobacco media portion 110 contains nicotine to provide the unique taste and flavor of the cigarette to a user inhaling mainstream smoke.

When the aerosol-generating article 100 is heated by the aerosol-generating device 300, which aerosol-generating device 300 will be described later, and the aerosol generated by the aerosol-generating device 300 is introduced into the aerosol-generating article 100, nicotine may be adsorbed to the surface of the aerosol as the aerosol passes through the tobacco medium portion 110 and is conveyed to the user.

Here, the nicotine contained in the tobacco medium may be at least one of free base nicotine and nicotine salt, and the nicotine may be naturally occurring nicotine or synthetic nicotine.

The nicotine salt may be formed by adding a suitable acid, including an organic acid or an inorganic acid, to nicotine. The acid used to form the nicotine salt may be selected in consideration of the absorption rate of nicotine in blood, the heating temperature of the heater, the flavor, the solubility, and the like. For example, the acid used to form the nicotine salt may be a single acid selected from the group consisting of benzoic acid, lactic acid, salicylic acid, lauric acid, sorbic acid, levulinic acid, pyruvic acid, formic acid, acetic acid, propionic acid, butyric acid, valeric acid, caproic acid, caprylic acid, capric acid, citric acid, myristic acid, palmitic acid, stearic acid, oleic acid, linoleic acid, linolenic acid, phenylacetic acid, tartaric acid, succinic acid, fumaric acid, gluconic acid, saccharic acid, malonic acid, or malic acid, or may be a mixture of at least two acids selected from the above group, but is not limited thereto.

Meanwhile, the tobacco medium of the tobacco medium portion 110 may be made in various forms. For example, the tobacco media may be formed into sheet or strip form. In addition, the tobacco medium may be made in the form of tobacco shreds obtained by finely cutting tobacco sheets. In addition, the tobacco media may be made in particulate form comprising tobacco.

The tobacco media portion 110 may have a cylindrical shape. However, the shape of the tobacco media portion 110 is not necessarily limited thereto, and a rod shape having various cross sections may be employed.

In this case, the tobacco media portion 110 may be manufactured by folding a tobacco sheet into a cylindrical shape or by molding a tobacco rod, tobacco thread, or tobacco pellet into a cylindrical shape.

When the tobacco media portion 110 is made of a plurality of tobacco rods obtained by finely cutting a tobacco sheet, the tobacco media portion 110 may be formed by combining the plurality of tobacco rods in the same direction (e.g., parallel to each other) or randomly. In particular, the tobacco media portion 110 may be formed by combining a plurality of tobacco rods, and a plurality of longitudinal channels for allowing aerosols to pass through. In this case, the longitudinal channels may be uniform or non-uniform depending on the size and arrangement of the tobacco rod.

The tobacco media portion 110 may also include aerosol-generating substances to increase the amount of atomization. As a non-limiting example, the aerosol-generating substance may include at least one of glycerin, propylene glycol, ethylene glycol, dipropylene glycol, diethylene glycol, triethylene glycol, tetraethylene glycol, and oleyl alcohol.

The tobacco media portion 110 may also include a flavor material to add flavor to the aerosol. For example, the tobacco media portion 110 can include other additives, such as flavoring agents, humectants, and/or organic acids. In addition, a flavored liquid, such as menthol or a humectant, may be added to the tobacco media portion 110 by spraying the flavored liquid onto the tobacco media portion 110.

In this case, the flavoring agent may include licorice, sucrose, fructose syrup, isosulfan, cocoa, lavender, cinnamon, cardamom, celery, fenugreek, cascarila, sandalwood, bergamot, geranium, honey essence, rose oil, vanilla, lemon oil, orange oil, peppermint oil, cinnamon, coriander, brandy, jasmine, chamomile, menthol, cinnamon, ylang-ylang, danshen root, spearmint, ginger, coriander, or coffee. In addition, the wetting agent may include glycerin or propylene glycol.

The tobacco media portion 110 may be surrounded by a thermally conductive material. The thermally conductive material may enhance the thermal conductivity applied to the tobacco media portion 110 by uniformly distributing the heat transferred to the tobacco media portion 110 to improve tobacco flavor. The thermally conductive material may be a metal foil, such as aluminum foil. However, the heat conductive material is not necessarily limited to the above example, and various metal foils used as the heat conductive material may also be employed.

Meanwhile, in the present embodiment, the tobacco media portion 110 may be composed of at least one section. For example, the tobacco media portion 110 may include one section, two sections, or three sections. As shown in fig. 4, the tobacco media portion 110 may include a section. Alternatively, as shown in fig. 5 and 6, the tobacco media portion 110 may include two sections. Alternatively, as shown in fig. 7, the tobacco media portion 110 may include three sections.

Referring to fig. 4, the tobacco media portion 110 according to the present embodiment may include one segment. The section of the tobacco media portion 110 may be filled with tobacco media. In other words, in this embodiment, the tobacco media portion 110 may include a section filled with tobacco media.

In this case, the segments may be manufactured by folding a tobacco sheet into a cylindrical shape, or by molding a tobacco rod, tobacco thread or tobacco particle into a cylindrical shape. In addition, the segment may further comprise aerosol-generating substances and/or flavour materials for increasing the amount of nebulization.

In addition, the section of tobacco media portion 110 may be heated by a heater 370 (see fig. 20) coupled to the aerosol-generating device 300 for heating the aerosol-generating article 100. In fig. 20, heater 370 is shown disposed about aerosol-generating article 100, but is not necessarily limited thereto, and heater 370 may be inserted into tobacco media portion 110 to heat tobacco media portion 110.

The tobacco media portion 110 may also include a configuration for identifying the aerosol-generating article 100. The aerosol-generating article 100 may exhibit various tastes and fragrances, and may include configurations (not shown) for identifying various types of aerosol-generating articles 100. For example, the tobacco media portion 110 may include a metal foil for changing the inductance of the coil to identify the aerosol-generating article included in the aerosol-generating device 300. In this case, the metal foil may be provided on the outer peripheral surface of the tobacco media portion 110.

Meanwhile, in the modified example shown in fig. 5 and 6, the tobacco medium portion 110 may include two sections. One of the two sections may include tobacco media and the other section may not include tobacco media.

Referring to fig. 5, the tobacco media portion 110 may include a first section 111 and a second section 119. The first section 111 is a section filled with tobacco media and may be made of the same materials as the section of the tobacco media portion 110 shown in fig. 4 described above.

The second section 119 may be located at the upstream end of the aerosol-generating article 100 and may prevent the first section 111 from being separated to the outside. In other words, the tobacco medium portion 110 according to the present modified example may also be configured such that the second section 119 and the first section 111 are arranged in order from the upstream side portion.

The second section 119 may prevent impurities from being introduced into the first section 111 from the outside, and the second section 119 may prevent liquefied aerosol from being introduced into the aerosol-generating device 300 (see fig. 20) during smoking.

In addition, when the aerosol-generating article 100 is inserted into the aerosol-generating device 300, the second section 119 may support the aerosol-generating article 100 such that the aerosol-generating article 100 is secured to the aerosol-generating device 300.

The second section 119 may be a cellulose acetate filter. For example, the second section 119 may be manufactured by adding a plasticizer, such as triacetin, to the cellulose acetate tow. In addition, aerosol-generating substances may be contained in the cellulose acetate tow.

Nicotine may be removed from the aerosol-generating substance comprised in the second section 119. For example, the second section 119 can include at least one of glycerin, propylene glycol, ethylene glycol, dipropylene glycol, diethylene glycol, triethylene glycol, tetraethylene glycol, or oleyl alcohol. However, the aerosol-generating substance included in the second section 119 is not necessarily limited thereto. For example, the second section 119 may include materials in which glycerin and propylene glycol are mixed in a ratio of about 8:2. However, the above mixing ratio is exemplary, and the present disclosure is not necessarily limited thereto.

In addition, the second section 119 may include other additives, such as fragrances, humectants, and/or organic acids. However, the material and type of the second section 119 are not necessarily limited thereto, and may be modified within the scope that can be adopted by those skilled in the art.

The second section 119 may have a through hole for allowing an aerosol from the outside to be introduced therethrough to form a mainstream smoke inside the aerosol-generating article 100. The through hole formed in the second section 119 may have a circular or Y-shaped cross section. However, the cross-sectional shape of the through hole is not necessarily limited thereto, and may take various forms.

Meanwhile, when the second section 119 includes a curled sheet impregnated with an aerosol-generating substance, the through-holes may not be formed in the second section 119.

When a portion of the aerosol-generating article 100 is inserted into the aerosol-generating device 300, the aerosol generated by the aerosol-generating device 300 may be introduced into the aerosol-generating article 100 through the second section 119. The aerosol thus introduced may form mainstream smoke within the aerosol-generating article 100 and be delivered to a user. In addition, the aerosol generated inside the second section 119 comprising the aerosol-generating substance may form a mainstream smoke and be delivered to the user.

The second section 119 may also include a configuration for identifying the aerosol-generating article 100. The aerosol-generating article 100 may exhibit various tastes and aromas and may include configurations for identifying various types of aerosol-generating articles 100. For example, the second section 119 may comprise a metal foil for changing the inductance of the coil for identifying the aerosol-generating article comprised in the aerosol-generating device 300. However, the present disclosure is not necessarily limited thereto, and the configuration for identifying the aerosol-generating article 100 may be included in the first section 111 in addition to the second section 119.

Referring to fig. 6, the tobacco media portion 110 can include a first section 111 and a second section 117.

The first section 111 may be located at an upstream end of the aerosol-generating article. The first section 111 is a section filled with tobacco media, and the first section 111 may be made of the same materials as the first section 111 described above and shown in fig. 5.

The second section 117 may prevent the tobacco medium of the first section 111 from being separated toward the cooling portion 130, which cooling portion 130 will be described later. For example, when a heater for heating the aerosol-generating article 100 is inserted into the first section 111, the tobacco medium in the first section 111 may separate and move towards the cooling portion 130. Since the second section 117 is provided between the first section 111 and the cooling portion 130, the tobacco medium in the first section 111 can be prevented from being separated toward the cooling portion 130.

The second section 117 may be made of the same material as the second section 119 described above and shown in fig. 5.

In addition, the second section 117 may have a through hole for allowing aerosol formed in the first section 111 or passing through the first section 111 to be introduced therethrough. The through hole formed in the second section 117 may have a circular or Y-shaped cross section. However, the cross-sectional shape of the through hole is not necessarily limited thereto, and may take various forms.

As such, the first section 111 and the second section 117 of the tobacco media portion 110 may be made of the same materials as the first section 111 and the second section 119, respectively, of the tobacco media portion 110 shown in fig. 5. However, the first section 111 and the second section 117 of the tobacco media portion 110 may be arranged in a different order than the first section 111 and the second section 119 shown in fig. 5. In other words, the tobacco medium portion 110 according to the present modified example may be configured such that the first section 111 and the second section 117 are arranged in order from the upstream side portion.

Meanwhile, in the modified example shown in fig. 7, the tobacco media portion 110 may include three sections. At least one of the three sections may comprise tobacco media.

Referring to fig. 7, the tobacco media portion 110 may include a first section 111, a second section 113, and a third section 115. In the present modified example, the first section 111 including the tobacco medium may be provided in the center, and the second section 113, the first section 111, and the third section 115 may be arranged in order from the upstream side.

The first section 111 is the middle section of the three sections of the tobacco media portion 110. The first section 111 is a section filled with tobacco media, and the first section 111 may be made of the same materials as the first section 111 shown in fig. 5 described above.

The second section 113 and the third section 115 may be disposed on either side of the first section 111 interposed between the second section 113 and the third section 115. The second section 113 and the third section 115 may be made of the same materials as the second section 119 described above and shown in fig. 5.

The second section 113 may prevent impurities from being introduced into the first section 111 from the outside, and may prevent liquefied aerosol from being introduced into the aerosol-generating device 300 during smoking. In addition, the second section 113 may remain the same in structure, function, and material as the second section 119 described above and shown in fig. 5.

The third section 115 may prevent the tobacco media of the first section 111 from separating toward the cooling portion 130. In addition, the third section 115 may remain the same in structure, function, and material as the second section 117 described above and shown in fig. 6.

As such, in the present variation, the tobacco media portion 110 may be configured such that the second section 113 and the third section 115 are oppositely disposed relative to the first section 111 comprising tobacco media.

Referring back to fig. 1-4, in this embodiment, the filter portion 150 may be located at the downstream end of the aerosol-generating article to be spaced apart from the tobacco media portion 110. The filter portion 150 may filter out at least one of the substances included in the mainstream smoke.

The filter portion 150 may be a cellulose acetate filter and the filter portion 150 may be manufactured by adding a plasticizer, such as triacetin, to the cellulose acetate tow. However, the material and type of the filter portion 150 are not necessarily limited thereto, and may be modified within the scope that can be adopted by those skilled in the art.

The filter portion 150 may have a cylindrical shape. However, the shape of the filter portion 150 is not necessarily limited thereto, and various shapes conforming to the shape of the tobacco medium portion 110 may be employed.

The filter portion 150 may be manufactured to generate a fragrance. For example, the flavored liquid may be sprayed onto the filter portion 150, or individual fibers coated with the flavored liquid may be included inside the filter portion 150.

Alternatively, the filter portion 150 may include at least one capsule (not shown). The capsule may generate a flavor or an aerosol. For example, the capsule may have a structure in which a liquid containing a perfume is encapsulated with a film. In this case, the capsule may have a spherical or cylindrical shape, but the shape of the capsule is not necessarily limited thereto.

In the present embodiment, the filter portion 150 is described as being formed at the most downstream side portion of the aerosol-generating article 100. However, as shown in fig. 8, a concave portion 190 may be formed downstream of the filter portion 150. The recess portion 190 has the following structure: the wrapper 170 surrounding the filter portion 150 also extends downstream beyond the filter portion 150. In other words, in the present embodiment, the package 170 extends outwardly beyond the filter portion 150 more than in the aerosol-generating article 100 described above according to the embodiment. Depending on the shape of the package 170, the filter portion 150 may have a concave stick shape.

The recess portion 190 may prevent nicotine stains formed at the end of the filter portion 150 from being easily exposed to the outside. Thus, nicotine stains formed on the filter portion 150 of the aerosol-generating article 100 during or after smoking are not exposed to the outside, resulting in an improved aesthetic appearance.

Referring to fig. 3 and 4, in the aerosol-generating article 100 according to the present embodiment, the cooling portion 130 may be disposed between the tobacco media portion 110 and the filter portion 150, and the cooling portion 130 may cool the high-temperature aerosol passing through the cooling portion 130. The high temperature aerosol from the tobacco media portion 110 may be cooled while moving inside the cooling portion 130, and the cooled aerosol may pass through the filter portion 150 and be delivered to the user. Thereby, the high temperature aerosol can be prevented from being directly delivered to the user.

The cooling portion 130 may have a tubular shape to allow the aerosol to pass through the cooling portion 130. Specifically, the cooling portion 130 may include a body 135 having a through hole 133 therein. The through hole 133 is a space formed in the center of the cooling portion 130, and the through hole 133 may allow the aerosol to move from the tobacco medium portion 110 to the filter portion 150 through the through hole 133.

The high temperature aerosol introduced to the inlet of the cooling part 130 may be cooled while passing through the through hole 133 of the cooling part 130. During the cooling of the aerosol, a portion of the heat contained in the aerosol may pass through the body 135 of the cooling portion 130 and be discharged to the outside. In this case, a separate member including polylactic acid (PLA) may be disposed in the through hole 133 of the cooling part 130. For example, the interior of the through hole 133 may be at least partially filled with PLA.

The body 135 of the cooling portion 130 may be manufactured by adding a plasticizer, such as triacetin, to the cellulose acetate tow. Alternatively, the body 135 of the cooling portion 130 may be made of laminated paper including a plurality of paper layers. For example, the body 135 may be made of laminated paper including an outer paper layer, a middle paper layer, and an inner paper layer, but is not necessarily limited thereto, and may be made of single-ply paper. In this case, the inner side of the laminated paper may be coated with a cooling material or may be attached with a cooling film. Here, the cooling material or the cooling film may include various materials having high thermal efficiency. However, the material and type of the body 135 of the cooling portion 130 are not limited thereto, and may be modified within the scope that can be adopted by those skilled in the art.

When the body 135 of the cooling part 130 is made of cellulose acetate tow, shan Dan denier (denier) of filaments constituting the cellulose acetate tow may be in the range of 3 to 20. Preferably, the Shan Dan denier of the filaments of the body 135 is in the range of 9 to 15.

In addition, the filaments comprising the body 135 may have a Y-shaped cross-section. Here, the term "filament" may refer to a long fiber bundle constituting a cellulose acetate tow.

Meanwhile, the body 135 may include other additives, such as a fragrance, a wetting agent, and/or an organic acid. In this case, the flavoring agent may include licorice, sucrose, fructose syrup, isosulfan, cocoa, lavender, cinnamon, cardamom, celery, fenugreek, cascarilla, sandalwood, bergamot, geranium, honey essence, rose oil, vanilla, lemon oil, orange oil, peppermint oil, cinnamon, coriander, brandy, jasmine, chamomile, menthol, cinnamon, ylang-ylang, danshen root, spearmint, ginger, coriander, or coffee. In addition, the wetting agent may include glycerin or propylene glycol.

Due to the through hole 133, the body 135 may have an annular cross section. In this case, the inner diameter of the body 135 may be equal to or greater than 2mm. In some embodiments, the inner diameter of the body 135 is in the range of 3.8mm to 4.2 mm.

Here, the body 135 may have a plurality of openings 160 for allowing external air to be introduced therethrough or internal air to be discharged therethrough. The plurality of openings 160 may be formed to be spaced apart from each other in the circumferential direction of the body 135.

In the present embodiment, a plurality of openings 160 may be arranged at an outlet side portion of the cooling portion 130 (i.e., a side adjacent to the filter portion 150). The aerosol passing through the cooling portion 130 may be further cooled by the external air introduced through the plurality of openings 160. Thereby, the aerosol to be introduced into the filter portion 150 can be cooled again, so that the high-temperature aerosol can be prevented from being directly inhaled into the mouth of the user.

In the present embodiment, although the plurality of openings 160 are arranged at the outlet side portion of the cooling portion 130, the positions of the plurality of openings 160 are not necessarily limited thereto. The plurality of openings 160 may be disposed at another location on the cooling portion 130. For example, at the inlet side of the cooling part 130 or in the central region of the cooling part 130.

According to the present embodiment, the inner peripheral surface of the body 135 of the cooling portion 130 may include the tobacco medium 131. Specifically, the tobacco media 131 may be applied to the inner peripheral surface of the body 135 or impregnated into the inner peripheral surface of the body 135. In other words, the tobacco media 131 may be disposed on the inner peripheral surface, or the tobacco media 131 may permeate through the inner peripheral surface. In this embodiment, the tobacco media 131 may be a liquid nicotine solution or nicotine salt.

Here, the tobacco medium 131 may contain nicotine as the tobacco medium included in the tobacco medium portion 110 described above. Thus, in the present embodiment, the tobacco medium 131 containing nicotine may be provided on the inner peripheral surface of the body 135 through which the aerosol passes.

When the tobacco media 131 is disposed on the inner peripheral surface of the body 135, nicotine may also be included in the mainstream smoke to provide a user with a rich nicotine. Specifically, in the cooling portion 130, nicotine may also be contained in the mainstream smoke that contains nicotine as it passes through the tobacco media portion 110.

In this case, the tobacco medium 131 disposed on the inner circumferential surface of the body 135 may be a liquid nicotine solution or nicotine salt. In the present embodiment, the tobacco medium 131 of the inner circumferential surface of the body 135 may be formed by spraying a liquid nicotine solution or nicotine salt to the inner circumferential surface of the body 135. The sprayed liquid nicotine solution or nicotine salt may be impregnated in the body 135. Alternatively, a deposition film or a coating film may be formed on the inner peripheral surface of the body 135 when the solvent evaporates.

As shown in fig. 11, a nozzle S may be inserted into the tubular cooling part 130, and then a liquid nicotine solution or nicotine salt NS may be sprayed toward the inner circumferential surface of the body 135 through the nozzle S. Thus, when the liquid nicotine solution or nicotine salt NS is applied to the inner peripheral surface of the body 135, the tobacco medium may be disposed on the inner peripheral surface of the body 135. Further, individual fibers impregnated with nicotine salt may be included in the body 135 of the cooling portion 130. However, the tobacco medium 131 according to the present embodiment is not necessarily limited to nicotine salt, and may take various forms including nicotine.

The nicotine salt may be formed by adding a suitable acid, including an organic acid or an inorganic acid, to nicotine. The acid used for forming the nicotine salt may be appropriately selected in consideration of the absorption rate of nicotine in blood, the heating temperature of the heater, the flavor, the solubility, and the like. For example, the acid used to form the nicotine salt may be a single acid selected from the group consisting of benzoic acid, lactic acid, salicylic acid, lauric acid, sorbic acid, levulinic acid, pyruvic acid, formic acid, acetic acid, propionic acid, butyric acid, valeric acid, caproic acid, caprylic acid, capric acid, citric acid, myristic acid, palmitic acid, stearic acid, oleic acid, linoleic acid, linolenic acid, phenylacetic acid, tartaric acid, succinic acid, fumaric acid, gluconic acid, saccharic acid, malonic acid, or malic acid, or may be a mixture of at least two acids selected from the above group, but is not limited thereto.

Referring to fig. 9, the mainstream smoke M passing through the tobacco media portion 110 may pass through the through-hole 133 formed in the cooling portion 130. The mainstream smoke M introduced into the through-hole 133 can contain nicotine generated by the tobacco media 110. At this time, the mainstream smoke M may be introduced into the through-hole 133 while containing nicotine in a high-temperature state.

When the tobacco medium 131 of the inner peripheral surface of the body 135 is heated by the heat of the mainstream smoke M, the nicotine N may be evaporated from the tobacco medium 131. Whereby nicotine N evaporated from the tobacco medium 131 in the body 135 may be entrained in the mainstream smoke M. As a result, the mainstream smoke M can also contain nicotine N from the cooling portion 130 as well as nicotine from the tobacco medium 110.

According to the present embodiment, since the inner peripheral surface portion of the cooling portion 130 includes the tobacco medium 131, the amount of nicotine contained in the mainstream smoke M can be increased, thereby providing a user with rich nicotine.

In addition, the cooling effect of the mainstream smoke M in the cooling portion 130 can also be increased by the tobacco medium 131 of the inner peripheral surface of the body 135. The mainstream smoke M can be further cooled as the heat of the tobacco medium 131 passing through the inner peripheral surface of the body 135 is vaporized.

In addition to the fact that the mainstream smoke M is naturally cooled as it passes through the through-hole 133 of the body 135, additional cooling occurs when the heat of the mainstream smoke M is used in the process of evaporation of nicotine from the tobacco medium 131 of the body 135.

Meanwhile, according to the present embodiment, since the tobacco medium 131 is included in the cooling portion 130, it is possible to prevent rapid decrease in the amount of nicotine transferred at the later stage of smoking. In other words, according to the aerosol-generating article 100 of the present embodiment, since the tobacco medium 131 of the cooling portion 130 provides additional nicotine, a decrease in the amount of nicotine delivered at a later stage of smoking can be compensated for.

Figure 10 shows the amount of nicotine delivered per puff during the smoking process. The horizontal axis represents the order of puffs (e.g., first puff, second puff … …) and the vertical axis represents the relative amount of nicotine delivered to the user per puff.

In general, the amount of nicotine delivered during the first few puffs increases during smoking, and when a certain number of puffs is reached, the amount of nicotine delivered decreases.

As shown in fig. 10, the aerosol-generating article according to the present embodiment is compared to an aerosol-generating article according to the prior art that does not comprise tobacco media in the cooling portion 130, and the amount of nicotine delivered is reduced in both the present disclosure and the prior art from the fourth and subsequent puffs.

However, at a later stage of smoking (e.g. after a fourth puff), the aerosol-generating article according to the present embodiment exhibits a higher amount of delivered nicotine than the aerosol-generating articles according to the prior art. In other words, according to the present embodiment, even at the later stage of smoking, the amount of nicotine transferred is increased by the tobacco medium 131 included in the cooling portion 130 as compared with the related art, thereby providing the user with sufficient nicotine during smoking.

According to the present embodiment, as shown in fig. 4, the tobacco media 131 may be uniformly disposed in the cooling portion 130. Specifically, the tobacco media 131 may be disposed on the inner circumferential surface of the body 135 at a uniform concentration along the longitudinal direction of the body 135 of the cooling portion 130.

In other words, the concentration of the tobacco media 131 in the cooling portion 130 may be uniform from the tobacco media portion 110 to the filter portion 150. Here, the concentration of the tobacco medium 131 means the amount of the tobacco medium 131 contained per unit length in the body 135. In this case, the tobacco media 131 may be uniformly disposed in a manner ranging from 0.1mg/mm to 1.0mg/mm along the longitudinal direction of the cooling portion 130.

Meanwhile, the tobacco medium 131 may be unevenly disposed in the cooling portion 130. Specifically, when in the modified example according to the present embodiment as shown in fig. 12 to 19, the tobacco media 131 may be provided at uneven concentrations along the longitudinal direction of the body 135 of the cooling portion 130.

Referring to fig. 12 and 13, the tobacco media 131 in the cooling portion 130 may be disposed such that the concentration of the tobacco media 131 in the cooling portion 130 is higher at an inlet side of the cooling portion 130 adjacent to the tobacco media portion 110 than at the rest of the locations on the cooling portion 130.

In fig. 12, the tobacco medium 131 may be disposed on the entire body 135 along the longitudinal direction of the body 135, and the concentration of the tobacco medium 131 may be relatively high at the inlet side of the cooling portion 130. On the other hand, in fig. 13, the tobacco medium 131 may be provided only at the inlet side portion of the cooling portion 130, and the tobacco medium 131 may not be provided at the rest position on the cooling portion 130 other than the inlet side portion.

Referring to fig. 14 and 15, the tobacco medium 131 in the cooling portion 130 may be disposed such that the concentration of the tobacco medium 131 in the cooling portion 130 is higher at the outlet side of the cooling portion 130 adjacent to the filter portion 150 than at the rest of the positions on the cooling portion 130.

In fig. 14, the tobacco medium 131 may be disposed on the entire body 135 along the longitudinal direction of the body 135, and the concentration of the tobacco medium 131 may be relatively high at the outlet side of the cooling portion 130. On the other hand, in fig. 15, the tobacco medium 131 may be provided only at the outlet side portion of the cooling portion 130, and the tobacco medium 131 may not be provided at the rest position on the cooling portion 130 other than the outlet side portion.

Referring to fig. 16 and 17, the tobacco medium 131 in the cooling portion 130 may be disposed such that the concentration of the tobacco medium 131 in the cooling portion 130 is higher in the central region of the cooling portion 130 than at the rest of the positions on the cooling portion 130. In other words, the concentration of the tobacco media 131 may be higher in the central region of the cooling portion 130 than in the opposite end regions of the cooling portion 130.

In fig. 16, the tobacco medium 131 may be disposed in the entire body 135 along the longitudinal direction of the body 135, and the concentration of the tobacco medium 131 may be relatively high in the central region of the cooling portion 130. In other words, the concentration of the tobacco media 131 may be relatively high in the central region between the inlet side and the outlet side of the cooling portion 130. On the other hand, in fig. 17, the tobacco medium 131 may be provided only in the central region, and the tobacco medium 131 may not be provided at the rest of the cooling portion 130 except the central region.

Referring to fig. 18 and 19, the tobacco medium 131 in the cooling portion 130 may be disposed such that the concentration of the tobacco medium 131 in the cooling portion 130 is lower in the central region of the cooling portion 130 than at the rest of the positions on the cooling portion 130. In other words, the concentration of the tobacco media 131 may be lower in the central region of the cooling portion 130 than in the opposite end regions of the cooling portion 130.

In fig. 18, the tobacco medium 131 may be disposed in the entire body 135 in the longitudinal direction of the body 135, and the concentration of the tobacco medium 131 may be relatively low in the central region of the cooling portion 130. In other words, the concentration of the tobacco medium 131 may be relatively low in the central region between the inlet side and the outlet side of the cooling portion 130. On the other hand, in fig. 19, the tobacco medium 131 may be disposed only in the opposite end regions of the cooling portion 130, and the tobacco medium 131 may not be disposed in the central region.

Referring back to fig. 4, the aerosol-generating article 100 according to the present embodiment may be packaged by a package 170. The wrapper 170 may surround the tobacco media portion 110, the cooling portion 130, and the filter portion 150 arranged in a row. In this way, when the wrapper 170 surrounds the tobacco media portion 110, the cooling portion 130, and the filter portion 150, a cylindrical shape that is a unique shape of the aerosol-generating article 100 may be maintained.

The wrapper 170 may surround the entire outer peripheral surface of each of the tobacco media portion 110, the cooling portion 130, and the filter portion 150.

Each of the tobacco media portion 110, the cooling portion 130, and the filter portion 150 that make up the aerosol-generating article 100 according to the present embodiment may be individually packaged by an individual package (not shown). When the tobacco media portion 110 includes multiple sections, each of the multiple sections may be packaged by a separate package, or the multiple sections may be packaged by a single package. In this way, when each of the tobacco media portion 110, the cooling portion 130, and the filter portion 150 is individually wrapped, the individually wrapped tobacco media portion 110, cooling portion 130, and filter portion 150 may be completely repackaged by the wrapper 170.

The package 170 may have a plurality of openings (not shown) for allowing external air to be introduced into the aerosol-generating article 100 or internal air to be expelled from the aerosol-generating article 100. The plurality of openings may be formed at positions corresponding to the plurality of openings 160 of the cooling part 130.

The package 170 may be made of a common wrapper. For example, the package 170 may be a porous or nonporous wrapper.

A predetermined material may be included in the package 170. Here, the predetermined material may be silicon, but is not necessarily limited thereto. For example, silicon exhibits characteristics such as heat resistance, oxidation resistance, various chemical resistance, water repellency, electrical insulation, and the like. However, any material other than silicon may be applied to the package 170 without limitation as long as the material exhibits the above-described characteristics.

In addition, the package 170 may include a non-combustible material to prevent combustion of the aerosol-generating article 100 according to the present embodiment. For example, the aerosol-generating article 100 may be burned when the tobacco media portion 110 is heated by the heater 370 of the aerosol-generating device 300. In detail, the aerosol-generating article 100 may be combusted when the temperature is raised to a temperature above the ignition point of any of the materials included in the tobacco media portion 110.

According to the present embodiment, the package 170 may prevent the aerosol-generating device 300 from being contaminated by the substance generated by the aerosol-generating article 100. During smoking, liquid substances may be generated in the aerosol-generating article 100. For example, when an aerosol generated by the aerosol-generating article 100 is cooled by outside air, liquid substances such as moisture may be generated.

When the wrapper 170 wraps the tobacco media portion 110, the cooling portion 130, and the filter portion 150, leakage of liquid substances generated in the aerosol-generating article 100 out of the aerosol-generating article 100 may be prevented. Accordingly, the inside of the aerosol-generating device 300 may be prevented from being contaminated by the liquid substance generated by the aerosol-generating article 100.

The package 170 may define the outermost surface of the aerosol-generating article 100 such that the shape of the aerosol-generating article 100 may vary depending on the shape of the package 170. For example, characters, patterns, symbols, images, etc. may be printed on the package 170. The characters, patterns, symbols, images, etc. printed on the package 170 may vary such that the aerosol-generating article 100 may provide various visual information.

Hereinafter, an aerosol-generating device into which an aerosol-generating article according to an embodiment of the present disclosure is inserted will be described.

Referring to fig. 20, the aerosol-generating device 300 according to the present embodiment may include a heater 370, a power supply 330, a controller 310, and an aerosol generator 350. Here, those of ordinary skill in the art relating to the present embodiment will appreciate that other general components besides those shown in fig. 20 may be included in the aerosol-generating device 300.

Meanwhile, in fig. 20, the power supply 330, the controller 310, and the aerosol generator 350 are shown arranged in a row. However, the arrangement of the power supply 330, the controller 310, and the aerosol generator 350 may be modified if desired. In addition, in fig. 20, the aerosol-generator 350 is shown as being included, but the aerosol-generator 350 may not be included, and the aerosol-generating article 100 may operate by heating only by the heater 370.

The aerosol-generating article 100 may be inserted into an aerosol-generating device 300. The aerosol-generating article 100 may be insertedly fixed to the aerosol-generating device 300 by fixing means. In this embodiment, the tobacco media portion 110 of the aerosol-generating article 100 may be used as a securing device. However, other securing means may be included in addition to the tobacco media portion 110.

The heater 370 may heat the aerosol-generating article 100. When the heater 370 is heated by the electric power supplied from the electric power supply 330, the heater 370 may transfer heat to the aerosol-generating article 100.

The heater 370 may be a resistive heater. Heater 370 may include conductive tracks. The heater 370 may heat the aerosol-generating article 100 when an electric current flows through the conductive track by the electric power supplied from the electric power supply 330.

As another example, heater 370 may be an induction heater. The heater 370 may comprise an electrically conductive coil for heating the aerosol-generating article 100 by an induction heating method, and the aerosol-generating article 100 may comprise a susceptor that may be heated by the induction heater.

In fig. 20, the heater 370 is shown as being disposed outside of the aerosol-generating article 100, but is not necessarily limited thereto. Heater 370 may include at least one of a tubular heating element, a plate heating element, a needle heating element, and a rod heating element. Depending on the shape of at least one heating element included in the heater 370, the heater 370 may heat the inside or outside of the aerosol-generating article 100, or may heat both the inside and outside of the aerosol-generating article 100.

The power supply 330 may supply power for use in the aerosol-generating device 300. For example, the power supply 330 may supply power for heating the heater 370, and may supply power for operating the controller 310. In addition, the power supply 330 may supply power for operating a display, a sensor, a motor, etc. of the aerosol-generating device 300.

The controller 310 may control the overall operation of the aerosol-generating device 300. In detail, the controller 310 may control the operation of other components included in the power supply 330 and the aerosol generator 350. Further, the controller 310 may determine whether the aerosol-generating device 300 is in an operational state by checking the status of each component in the aerosol-generating device 300.

The aerosol generator 350 may generate an aerosol by heating the liquid composition. The generated aerosol may pass through the aerosol-generating article 100 and be delivered to a user. In other words, the aerosol generated by the aerosol generator 350 may be introduced into the tobacco media portion 110 of the aerosol-generating article 100.

The aerosol generator 350 may include, but is not necessarily limited to, a liquid reservoir, a liquid delivery device, and a heating element. For example, the liquid reservoir, the liquid delivery means and the heating element may be included in the aerosol-generating device 300 as separate modules.

The liquid reservoir may store a liquid composition. For example, the liquid composition may be a liquid comprising tobacco-containing material having volatile tobacco flavor components, or a liquid comprising non-tobacco material. The liquid reservoir may be manufactured to be attached to the aerosol-generating device 300 or detached from the aerosol-generating device 300, or may be manufactured integrally with the aerosol-generating device 300.

When the aerosol generator 350 according to embodiments of the present disclosure comprises a liquid comprising a non-tobacco material, the liquid composition stored in the liquid reservoir comprised in the aerosol generator 350 may not comprise nicotine, and the aerosol generated by the aerosol generator 350 may be introduced into the tobacco media portion 110 without nicotine. In this case, the aerosol without nicotine may pass through the tobacco media portion 110 and adsorb nicotine, and the aerosol that has passed through the tobacco media portion 110 may contain nicotine.

The liquid composition included in the aerosol generator 350 may include water, solvents, ethanol, plant extracts, flavors, fragrances, or vitamin mixtures. The flavoring may include menthol, peppermint, spearmint oil, and various fruit flavor ingredients, but is not necessarily limited thereto. The flavoring agent may include ingredients that may provide various flavors or tastes to the user. The vitamin mixture may be a mixture of at least one of vitamin a, vitamin B, vitamin C, and vitamin E, but is not necessarily limited thereto. In addition, the liquid composition may contain an aerosol former such as glycerin and propylene glycol.

While the present disclosure has been shown and described with reference to exemplary embodiments thereof, it will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the spirit and scope of the present disclosure as defined by the following claims. Accordingly, the scope of the present disclosure is defined not by the detailed description of the disclosure but by the appended claims, and all differences within the scope will be construed as being included in the present disclosure.

Claims

1. An aerosol-generating article, the aerosol-generating article comprising:

A tobacco media portion;

a filter portion disposed in spaced relation to the tobacco media portion; and

a tubular cooling portion disposed between the tobacco media portion and the filter portion,

wherein the tubular cooling portion comprises an inner peripheral surface having a nicotine component.

2. An aerosol-generating article according to claim 1, wherein the nicotine component is evenly arranged on the inner peripheral surface along the longitudinal direction of the tubular cooling portion.

3. An aerosol-generating article according to claim 2, wherein the nicotine component of the inner peripheral surface is arranged in a manner in the range of 0.1mg/mm to 1.0mg/mm along the longitudinal direction of the tubular cooling portion.

4. An aerosol-generating article according to claim 1, wherein the nicotine component is unevenly arranged on the inner peripheral surface along the longitudinal direction of the tubular cooling portion.

5. An aerosol-generating article according to claim 4, wherein the concentration of the nicotine component of the inner peripheral surface is higher at an inlet side of the tubular cooling portion adjacent the tobacco medium portion than at an outlet side of the tubular cooling portion adjacent the filter portion.

6. An aerosol-generating article according to claim 4, wherein the concentration of the nicotine component of the inner peripheral surface is lower at an inlet side of the tubular cooling portion adjacent the tobacco medium portion than at an outlet side of the tubular cooling portion adjacent the filter portion.

7. An aerosol-generating article according to claim 4, wherein the concentration of the nicotine component of the inner peripheral surface is higher in a central region of the tubular cooling portion than in opposite end regions of the tubular cooling portion.

8. An aerosol-generating article according to claim 4, wherein the concentration of the nicotine component of the inner peripheral surface is lower in a central region of the tubular cooling portion than in opposite end regions of the tubular cooling portion.

9. An aerosol-generating article according to claim 4, wherein the nicotine component of the inner peripheral surface is provided in a partial section of the inner peripheral surface along the longitudinal direction of the tubular cooling portion.

10. An aerosol-generating article according to claim 1, wherein the tubular cooling portion comprises cellulose acetate tow.

11. An aerosol-generating article according to claim 1, wherein a flavour material is also included in the walls constituting the tubular cooling portion.

12. An aerosol-generating article according to claim 1, wherein the nicotine component of the inner peripheral surface is a liquid nicotine solution or nicotine salt.

13. An aerosol-generating article according to claim 1, wherein the nicotine component of the inner peripheral surface is provided in a wall constituting the tubular cooling portion.

14. An aerosol-generating article according to claim 1, wherein the tobacco media portion comprises a plurality of segments.

15. An aerosol-generating article according to claim 14, wherein at least one of the plurality of segments comprises tobacco media.