CN117156986A

CN117156986A - Aerosol-generating article

Info

Publication number: CN117156986A
Application number: CN202280029015.3A
Authority: CN
Inventors: 李载珉; 曹智贤; 朱城扈
Original assignee: KT&G Corp
Current assignee: KT&G Corp
Priority date: 2021-05-14
Filing date: 2022-05-13
Publication date: 2023-12-01
Also published as: EP4337035A1; KR20220155540A; WO2022240247A1; JP2024515963A

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; a cooling portion disposed between the tobacco media portion and the filter portion; and a heat transfer portion surrounding at least a portion of the cooling portion.

Description

Aerosol-generating article

Technical Field

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

Background

Generally, tobacco refers to the perennial herb of the dicotyledonous plant Solanaceae, and in recent years also refers to products made for smoking and comprising tobacco leaves in cigarette paper and filters at one side. There are tens of thousands of tobacco products in the global market, and these tobacco products come in a wide variety of shapes and forms.

In the case of burning tobacco products such as cigarettes, cigars, and hookahs, the tobacco smoke contains many components, such as tar, nitroamines, hydrocarbons, and carbon monoxide, in addition to the aerosol comprising nicotine.

As an alternative to compensating for the drawbacks of such combustion type tobacco, a method of generating aerosol by heating an aerosol-generating substance in a cigarette instead of burning the cigarette is widely used, and the demand for such a method is increasing. In order to meet such a demand, studies on a heating type cigarette or a heating type aerosol-generating device are actively being conducted.

In detail, the aerosol-generating device has a form similar to that of a conventional combustion type tobacco product, and generates mainstream smoke containing aerosol by heating an aerosol-generating substance in a heated cigarette by means such as a heater or ultrasonic vibration. Aerosol-generating devices have the advantage of being able to provide smokers with a degree of satisfaction in smoking while minimizing emissions of components such as tar, and are therefore of great interest as a new market for replacement of traditional combustion tobacco products.

However, the heated cigarette heated by the aerosol-generating device generates high temperature mainstream smoke within the cigarette and the high temperature aerosol can be delivered directly to the user. High temperature mainstream smoke can cause discomfort or burns to the user. Alternatively, when the heated cigarette is not uniformly heated, the aerosol may not flow effectively inside the cigarette.

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 capable of preventing a user from feeling uncomfortable or burned.

It is a further object of the present invention to provide an aerosol-generating article that is capable of uniformly heating a portion of tobacco media, thereby improving the generation of enriched aerosol.

Solution to the problem

According to one aspect of the present disclosure there is provided an aerosol-generating article comprising: a tobacco media portion; a filter portion disposed spaced apart from the tobacco media portion; a cooling portion disposed between the tobacco media portion and the filter portion; and a heat transfer portion surrounding at least a portion of the cooling portion.

The beneficial effects of the invention are that

As described above, the aerosol-generating article according to one aspect of the present disclosure may prevent a user from feeling uncomfortable or being burned by high temperature mainstream smoke.

In addition, the tobacco media portion may be heated uniformly, thereby improving the generation of rich aerosols.

Drawings

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

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

Fig. 5 is a diagram illustrating a process of heating a tobacco media portion by inserting a heater into an aerosol-generating article according to the first aspect of the present disclosure.

Fig. 6 is a diagram showing a process of heating a tobacco media portion by inserting a heater into an aerosol-generating article according to the prior art.

Fig. 7 to 9 are diagrams showing modified examples of the heat transfer portion of the aerosol-generating article according to the first embodiment of the present disclosure.

Fig. 10 is a diagram showing a modified example of a tobacco media portion of an aerosol-generating article according to a first embodiment of the present disclosure.

Fig. 11 is a diagram showing a modified example of the heat transfer portion shown in fig. 10.

Fig. 12 to 14 are diagrams showing modified examples of the heat transfer portion of the aerosol-generating article according to the first embodiment of the present disclosure.

Fig. 15 is a cross-sectional view illustrating an aerosol-generating article according to a second embodiment of the present disclosure.

Fig. 16 to 18 are diagrams showing modified examples of tobacco media portions of an aerosol-generating article according to a second embodiment of the present disclosure.

Fig. 19 is a diagram showing a modified example of the filter portion of the aerosol-generating article shown in fig. 15.

Fig. 20 is a diagram showing a process in which a heater of an aerosol-generating device heats an aerosol-generating article according to the prior art.

Fig. 21 is a diagram illustrating a process in which a heater of an aerosol-generating device heats an aerosol-generating article according to a second embodiment of the disclosure.

Fig. 22 is a schematic diagram showing a configuration of an aerosol-generating device with an aerosol-generating article according to the first embodiment of the present disclosure inserted.

Fig. 23 is a diagram showing a modified example of the aerosol-generating device shown in fig. 22.

Conventionally, 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. In addition, some of the figures may not depict all of the components of a given system, method, or apparatus. Finally, like reference numerals may be used to refer to like features throughout the specification and drawings.

Detailed Description

Best mode for carrying out the invention

According to some embodiments, the heat transfer portion may extend from an inlet of the cooling portion that is in contact with the tobacco media portion.

According to some embodiments, the cooling portion may include a first cooling section in contact with the tobacco media portion and a second cooling section disposed between the first cooling section and the filter portion.

According to some embodiments, the heat transfer portion may extend from an inlet in contact with the tobacco media portion and may surround at least a portion of the first cold zone section.

According to some embodiments, the heat transfer portion may surround at least a portion of the second cooling section.

According to some embodiments, the first cooling section may comprise cellulose acetate tow and the second cooling section may comprise a paper material.

According to some embodiments, the cooling portion may have a tubular shape.

According to some embodiments, the tobacco media portion may comprise a plurality of segments.

According to some embodiments, at least one of the plurality of segments may comprise tobacco media.

According to some embodiments, the heat transfer portion may be in the form of a metal foil.

According to some embodiments, the heat transfer portion may include at least one of aluminum, copper, ferrite, and martensite.

According to some embodiments, the heat transfer portion may comprise a plurality of metal strips.

According to some embodiments, the plurality of metal strips may be spaced apart from one another.

According to some embodiments, the plurality of metal strips may be arranged parallel to an extending direction of the cooling portion.

According to some embodiments, the plurality of metal strips may be arranged to be inclined with respect to an extending direction of the cooling portion.

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

According to some embodiments, 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.

Scheme for 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 should be construed to cover modifications, equivalents, or alternatives that fall 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 intended to include the plural unless expressly stated 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. Throughout the drawings, the same reference numerals will be used to refer to the same or like elements or parts. Further, it should be noted that detailed descriptions of conventional elements and elements related to the present disclosure will be omitted when the functions of these elements and the detailed descriptions may obscure the gist of the present disclosure. For the same reasons, 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 showing an aerosol-generating article according to a first embodiment of the present disclosure. Fig. 2 is a schematic perspective view illustrating an aerosol-generating article according to a first embodiment of the present disclosure. Fig. 3 is an enlarged sectional view taken along section a shown in fig. 2. Fig. 4 is a side cross-sectional view illustrating an aerosol-generating article according to a first embodiment of the present disclosure.

Referring to fig. 1-4, an aerosol-generating article 100 according to a first 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 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. 22 and 23) which will be described below. 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 interior of the aerosol-generating article 100. Herein, the term "upstream" may mean toward the side where the tobacco media portion 110 is located, and the term "downstream" may mean toward the side where the filter portion 150 is located. 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 with 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, as well as the 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 modified in part within the scope that may be employed by those skilled in the art.

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 comprises 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 will be described below, and the aerosol generated by the aerosol-generating device 300 is introduced into the aerosol-generating article 100, nicotine may be absorbed by the aerosol while the aerosol passes through the tobacco media portion 110 and is delivered to the user.

Here, the nicotine contained in the tobacco medium may be at least one of free base nicotine or 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 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 fragrance, the solubility, and the like. For example, the acid used to form the nicotine salt may be one 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, glyconic acid, malonic acid and malic acid, but are not limited thereto.

Meanwhile, the tobacco medium of the tobacco medium portion 110 may be made into various forms. For example, the tobacco media may be formed into sheets or strips. In addition, the tobacco medium may be made into the form of tobacco shreds obtained by finely cutting tobacco sheets. In addition, the tobacco media may be made in the form of tobacco-containing particles.

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-like 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 particle into a cylindrical shape.

When the tobacco medium portion 110 is made of a plurality of tobacco rods obtained by finely cutting a tobacco sheet, the tobacco medium portion 110 may be formed by bonding or freely bonding the plurality of tobacco rods in the same direction (parallel to each other). In detail, the tobacco media portion 110 may be formed by combining a plurality of tobacco rods, and a plurality of longitudinal channels may be formed for allowing aerosols to pass therethrough. 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 enhance the amount of atomization. For example, the aerosol-generating substance may comprise at least one of: glycerol, propylene glycol, ethylene glycol, dipropylene glycol, diethylene glycol, triethylene glycol, tetraethylene glycol, and oleyl alcohol, but are not necessarily limited thereto.

The tobacco media portion 110 can 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, isosweet, 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, red sage, spearmint, ginger, coriander, or coffee. Additionally, the wetting agent may also include glycerin or propylene glycol.

In some embodiments, the tobacco media portion 110 can include at least one segment. For example, the tobacco media portion 110 may include one segment or two segments. In detail, the tobacco media portion 110 according to the embodiment shown in fig. 4 may comprise one segment. Alternatively, in the embodiment shown in fig. 10 and 11, the tobacco media portion 110 may comprise two sections.

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

In this case, the segments may be manufactured by: folding the tobacco sheet into a cylindrical shape; or molding the tobacco rod, or tobacco rod into a cylindrical shape. In addition, the segments may also include aerosol-generating substances to increase the amount of atomization and/or the flavor material.

In addition, the section of the tobacco media portion 110 may be heated by a heater 370 (fig. 22) coupled to the aerosol-generating device 300 for heating the aerosol-generating article 100. In fig. 22, a heater 370 may be inserted into the aerosol-generating article 100 to heat the tobacco media portion 110.

Meanwhile, in the example shown in fig. 10 and 11, 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. 10 and 11, each tobacco media portion 110 may include a first tobacco section 111 and a second tobacco section 113. The first tobacco section 111 is a section filled with tobacco medium, and the first tobacco section 111 may be made of the same material as the material of the above-described section of the tobacco medium portion 110 shown in fig. 4.

The second tobacco section 113 may be located at an upstream end of the aerosol-generating article 100, and the second tobacco section 113 may prevent the first tobacco section 111 from separating from the aerosol-generating article 100. In other words, the tobacco media portion 110 according to some embodiments may be configured such that the second tobacco segment 113 and the first tobacco segment 111 are disposed in sequence from the upstream end of the aerosol-generating article 100.

The second tobacco section 113 may prevent the introduction of impurities into the first tobacco section 111 from the outside, and the second tobacco section 113 may prevent the introduction of liquefied aerosol into the aerosol-generating device 300 (see fig. 22 or 23) during smoking.

In addition, when the aerosol-generating article 100 is inserted into the aerosol-generating device 300, the second tobacco section 113 may support the aerosol-generating article 100 such that the aerosol-generating article 100 is secured to the aerosol-generating device 300.

The second tobacco segment 113 may be a cellulose acetate filter. For example, the second tobacco segment 113 may be manufactured by adding a plasticizer, such as glyceryl triacetate, to the cellulose acetate tow. Additionally, aerosol-generating substances may be included in the cellulose acetate tow.

Nicotine may be removed from the aerosol-generating substance comprised in the second tobacco segment 113. For example, the second tobacco segment 113 can include at least one of glycerin, propylene glycol, ethylene glycol, dipropylene glycol, diethylene glycol, triethylene glycol, tetraethylene glycol, and oleyl alcohol. However, the aerosol-generating substance included in the second tobacco segment 113 is not necessarily limited thereto. For example, the second tobacco segment 113 can include a material 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 tobacco segment 113 can include other additives, such as flavoring agents, humectants, and/or organic acids. However, the material and type of the second tobacco section 113 are not necessarily limited thereto, and may be modified within the scope that may be employed by those skilled in the art.

The second tobacco section 113 may have a through-hole to allow aerosol from the outside to be introduced through the through-hole to form mainstream smoke within the interior of the aerosol-generating article 110. The through-hole formed in the second tobacco section 113 may have an annular 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, in some embodiments, for example when the second tobacco section 113 comprises a curled sheet impregnated with an aerosol-generating substance, the through-holes may not be formed in the second tobacco section 113.

When a portion of the aerosol-generating article 110 is inserted into the aerosol-generating device 300 (see fig. 23), the aerosol generated by the aerosol-generating device 300 may be introduced into the aerosol-generating article 100 through the second tobacco segment 113. The aerosol thus introduced may form mainstream smoke in the aerosol-generating article 100 and be delivered to a user. In addition, the aerosol generated inside the second tobacco segment 113 comprising the aerosol-generating substance may form mainstream smoke and be delivered to the user.

In this case, the heater 390 of the aerosol-generating device 300 may be arranged around the tobacco medium portion 110 and may heat the tobacco medium portion 110. In addition, the heat transfer portion 190 may surround the first cooling section 131 of the cooling portion 130, or may surround a portion of the second cooling section 133 and the first cooling section 131. A detailed description of the heat transfer portion 190 will be provided below.

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 100 to be spaced apart from the tobacco media portion 110. The filter portion 150 may filter out at least one of the substances contained 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 glyceryl triacetate 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 consistent with the shape of the tobacco medium portion 110 may be employed.

The filter portion 150 may be manufactured to produce a fragrance. For example, the flavored liquid may also be sprayed onto the filter portion 150, or the interior of the filter portion 150 may include individual fibers coated with the flavored liquid.

Alternatively, the filter portion 150 may include at least one capsule (not shown). The capsule may produce a fragrance or aerosol. For example, the capsule may have a structure in which a liquid containing a fragrance 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 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.

In the present embodiment, the cooling portion 130 may include a first cooling section 131 and a second cooling section 133. In other words, the cooling portion 130 may include two sections. However, the cooling portion 130 is not necessarily limited thereto, and may include at least two sections.

The first cooling section 131 and the second cooling section 133 may be disposed adjacent to the tobacco media portion 110 in sequence. In detail, the first cooling section 131 may be disposed adjacent to the tobacco media portion 110, and the second cooling section 133 may be disposed between the first cooling section 131 and the filter portion 150. In other words, in the present embodiment, the tobacco media portion 110, the first cooling section 131, the second cooling section 133, and the filter portion 150 may be arranged in order from the upstream end toward the downstream end.

The first cooling section 131 may cool the aerosol from the tobacco media portion 101, and the first cooling section 131 may prevent the tobacco media of the tobacco media portion 110 from being separated toward the second cooling section 133. For example, when a heater 370 (see fig. 22) for heating the aerosol-generating article 110 is inserted into the tobacco medium portion 110, the tobacco medium in the tobacco medium portion 110 may be separated and moved towards the second cooling section 133. Since the first cooling section 131 is arranged between the tobacco medium portion 110 and the second cooling section 133, the tobacco medium in the tobacco medium portion 110 can be prevented from being separated toward the second cooling section 133.

The first cooling section 131 may be manufactured by adding a plasticizer such as glyceryl triacetate to the cellulose acetate tow. In addition, aerosol-generating material may be included in the cellulose acetate tow.

The first cooling section 131 may include at least one of glycerin, propylene glycol, ethylene glycol, dipropylene glycol, diethylene glycol, triethylene glycol, tetraethylene glycol, and oleyl alcohol. However, the aerosol-generating substance included in the first cooling section 131 is not necessarily limited thereto. For example, the first cooling section 131 may include a material 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 first cooling section 131 may include other additives such as fragrances, humectants, and/or organic acids. However, the material and type of the first cooling section 131 are not necessarily limited thereto, and may be modified within the scope that can be adopted by those skilled in the art.

The first cooling section 131 may have a through hole to allow aerosol from the tobacco media portion 110 to be introduced therethrough to form mainstream smoke inside the aerosol-generating article 110. The through hole formed in the first cooling section 131 may have an annular or Y-shaped cross section. However, the cross-sectional shape of the through hole is not necessarily limited thereto, and may take various forms.

The second cooling section 133 may be disposed between the first cooling section 131 and the filter portion 150, and may further cool the aerosol passing through the first cooling section 131.

The second cooling section 133 may have a tubular shape to allow the aerosol to pass through the second cooling section. In detail, the second cooling section 133 may have a through hole T in the second cooling section 133. The through-hole T is a space formed in the center of the second cooling section 133, and the through-hole T may allow the aerosol to move from the tobacco medium portion 110 to the filter portion 150 therethrough. In the present embodiment, the diameter of the through hole T of the second cooling section 133 may be larger than that of the first cooling section 131. However, the diameter of the through hole T of the second cooling section 133 is not necessarily limited thereto, and the diameter of the through hole T of the second cooling section 133 may be equal to or smaller than the diameter of the through hole of the first cooling section 131.

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

The body of the second cooling section 133 may be manufactured by adding a plasticizer such as glyceryl triacetate to the cellulose acetate tow. Alternatively, the body of the second cooling section 133 may be made of laminated paper comprising a plurality of paper layers. For example, the body 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 the body may be made of single-ply paper. In this case, the inside 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 of the second cooling section 133 are not necessarily limited thereto, and may be modified within the scope that can be adopted by those skilled in the art.

When the body of the second cooling section 133 is made of cellulose acetate tow, the filaments constituting the cellulose acetate tow may have a single denier in the range of 3 to 20. Preferably, the filaments of the body have a denier of Shan Dan in the range of from 9 to 12.

In addition, the filaments constituting the body of the second cooling section 133 may have a Y-shaped cross section. Herein, the term "filament" may mean a long fiber bundle constituting a cellulose acetate tow.

Meanwhile, the body of the second cooling section 133 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, isosweet, 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, red sage, spearmint, ginger, coriander, or coffee. In addition, the wetting agent may also include glycerin or propylene glycol.

The body of the second cooling section 133 may have an annular cross section due to the through hole T. In this case, the inner diameter of the body may be equal to or greater than 2mm. Preferably, the inner diameter of the body is in the range of 3.8mm to 4.2 mm.

Here, the body of the second cooling section 133 may have a plurality of openings 160 for allowing external air to be introduced through the openings 160 or internal air to be discharged through the openings 160. The plurality of openings 160 may be formed to be spaced apart from each other in the circumferential direction of the body.

In the present embodiment, the plurality of openings 160 may be arranged toward the inlet side of the second cooling section 133, i.e., the side adjacent to the first cooling section 131. The aerosol passing through the second cooling section 133 may be further cooled by external air introduced through the plurality of openings 160. Accordingly, the aerosol 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 it is described that the plurality of openings 160 are arranged at the inlet side portion of the second cooling section 133, the positions of the plurality of openings 160 are not necessarily limited thereto. The plurality of openings 160 may be arranged at another location along the second cooling section 133, for example, the plurality of openings 160 may be arranged at a location toward the outlet side of the second cooling section 133 or at a central region of the second cooling section 133.

According to the present embodiment, the heat transfer portion 190 may be arranged to surround at least a portion of the cooling portion 130. The heat transfer portion 190 may insulate the aerosol inside the aerosol-generating article 100 or cool the aerosol inside the aerosol-generating article 100. The specific process of insulating or cooling the aerosol by the heat transfer portion 190 will be described below with reference to fig. 5 and 6.

The heat transfer portion 190 may surround the outer circumferential surface of the cooling portion 130, and the heat transfer portion 190 may surround only a portion of the cooling portion 130 or the entire cooling portion 130 in the longitudinal direction of the cooling portion 130.

In detail, as shown in fig. 4, in the present embodiment, the heat transfer portion 190 may surround the entire outer circumferential surface of the first cooling section 131 of the cooling portion 130.

Alternatively, in the embodiment shown in fig. 7, the heat transfer portion 190 may surround only a portion of the first cooling section 131.

Alternatively, according to the embodiment shown in fig. 8, the heat transfer portion 190 may surround a portion of the second cooling section 133 and the entire first cooling section 131. In this case, the heat transfer portion 190 may be arranged to extend immediately before the position where the opening 160 is formed so as not to cover the opening 160 of the second cooling section 133.

Alternatively, according to another embodiment shown in fig. 9, the heat transfer portion 190 may surround the entire first cooling section 131 and the entire second cooling section 133. In other words, the heat transfer portion 190 may be arranged to surround the entire cooling portion 130. In this case, the heat transfer portion 190 may have a plurality of openings at positions corresponding to the openings 160 of the second cooling section 133.

In this embodiment, the heat transfer portion 190 may extend from an inlet of the cooling portion 130 that is in contact with the tobacco media portion 110. As shown in fig. 4, the heat transfer portion 19 may be arranged to surround the cooling portion 130 from a position where the tobacco medium portion 110 and the cooling portion 130 are in contact with each other, i.e., from an inlet of the cooling portion 130. Thus, the heat transfer portion 190 may insulate the downstream side of the tobacco media portion 110 such that the downstream side of the tobacco media portion 110 is heated to a temperature equal to the temperature of the remaining sections of the tobacco media portion 110 while the tobacco media portion 110 is heated by the heater 370. In addition, the heat transfer part 190 may further cool the aerosol moving inside the cooling part 130. The detailed process of the heat transfer part 190 cooling the aerosol moving inside the cooling part 130 will be described below.

Hereinafter, a process of insulating the aerosol in the aerosol-generating article 100 or cooling the aerosol in the aerosol-generating article 100 by the heat transfer portion 190 according to the present embodiment will be described with reference to fig. 5 and 6.

Fig. 5 is a diagram illustrating a process of heating a tobacco media portion by inserting a heater into an aerosol-generating article according to an embodiment of the disclosure. Fig. 6 is a diagram showing a process of heating a tobacco media portion by inserting a heater into an aerosol-generating article according to the prior art.

The heat transfer portion 190 according to the present embodiment may insulate the aerosol while the tobacco media portion 110 is heated before the user inhales the mainstream smoke, and the heat transfer portion 190 according to the present embodiment may cool the aerosol while the user inhales the mainstream smoke.

The process of inhalation of mainstream smoke by a user using the aerosol-generating article 100 according to the present embodiment may comprise the following processes: the tobacco media portion 110 is initially heated by a heater 370 of an aerosol-generating device 300 (see fig. 22) inserted into the tobacco media portion 110 to generate an aerosol; and when the tobacco media portion 110 reaches a predetermined temperature for aerosol generation, a user inhales mainstream smoke through the mouth.

Referring to fig. 5, when the heater 370 initially heats the tobacco media portion 110, the heat transfer portion 190 may insulate the downstream side P of the tobacco media portion 110 adjacent the cooling portion 130. Thus, when the tobacco media portion 110 is heated, the heat transfer portion 190 may insulate the downstream side of the tobacco media portion such that the entire section of the tobacco media portion 110 is heated to a uniform temperature.

The heat transfer portion 190 may be made in the form of a metal foil, so that heat generated by the heater 370 at the downstream side P of the tobacco medium portion 110 may be prevented from being emitted to the outside through the body of the cooling portion 130. Unlike the related art, since the heat transfer portion 190 blocks heat from being emitted to the outside, the temperature of the downstream side portion P of the tobacco medium portion 110 is prevented from being lowered.

Fig. 6 shows a process in which a heater 370 heats the aerosol-generating article 100 according to the prior art. When the heater 370 initially heats the tobacco medium portion 110, heat at the downstream side portion P of the tobacco medium portion 110 is radiated to the outside through the adjacent cooling portion 130 (see (a) of fig. 6). Thus, the temperature of the downstream side portion P of the tobacco media portion 110 is lower than the temperature of the remaining section M of the tobacco media portion 110 (see (B) of fig. 6).

The heater 370 may have a shape in which the resistive heater H is surrounded by the ceramic material C, and there is a possibility that the cooling portion 130 is melted by the high temperature heater 370. Therefore, the insertion length of the heater 370 is limited such that the end of the heater 370 is not close to the cooling portion 130. In other words, the heater 370 is inserted such that the end of the heater 370 does not reach the end of the tobacco media portion 110. Accordingly, since the heater 370 is inserted such that the end of the heater 370 does not reach the end of the tobacco medium portion 110, as much heat as the remaining section M may not be supplied to the downstream side portion P of the tobacco medium portion 110. In addition, since heat at the downstream side portion P is radiated and released to the outside through the adjacent cooling portion 130, the temperature of the downstream side portion P of the tobacco medium portion 110 may be lower than that of the remaining section M.

When the temperature of the downstream side P of the tobacco media portion 110 is low, the aerosol generated in the remaining section M of the tobacco media portion 110 liquefies at the low temperature downstream side of the tobacco media portion 110, thereby impeding the flow of the aerosol at the downstream side P of the tobacco media portion 110. In other words, the aerosol generated in the tobacco media portion 110 cannot effectively flow toward the cooling portion 130.

Thus, in the present embodiment, the heat transfer portion 190 insulates the downstream side of the tobacco media portion 110 as the tobacco media portion 110 is heated. This enables the aerosol generated in the tobacco medium portion 110 to flow toward the cooling portion 130 efficiently without stagnating at the downstream side portion of the tobacco medium portion 110 due to low temperature.

Meanwhile, the heat transfer part 190 may also cool the high temperature aerosol moving inside the cooling part 130 during the inhalation of the mainstream smoke by the user through the mouth when the tobacco media part 110 reaches a predetermined temperature for generating aerosol. When the high temperature aerosol is cooled while passing through the cooling part 130, the heat transfer part 190 surrounding the cooling part 130 may radiate heat from the cooling part 130 to further cool the high temperature aerosol. Therefore, the high-temperature aerosol can be prevented from being directly delivered to the user.

In this case, the heat transfer portion 190 may be in the form of a metal foil. In other words, the heat transfer portion 190 may surround the cooling portion 130 in the form of a thin metal plate. Since the metal heat transfer portion 190 is disposed on the outer circumferential surface of the cooling portion 130 adjacent to the tobacco media portion 110, the aerosol may be insulated or cooled during inhalation.

The heat transfer portion 190 may include a metallic material. For example, the heat transfer portion 190 may include at least one of aluminum, copper, ferrite, or martensite. Preferably, the heat transfer portion 190 is in the form of a metal foil comprising aluminum. However, the heat transfer portion 190 is not necessarily limited thereto, and various metals having high thermal conductivity may be employed.

In some embodiments, the heat transfer portion 190 may be arranged circumferentially in the form of a metal plate to surround the outer circumferential surface of the cooling portion 130 (see fig. 1). Alternatively, as shown in the embodiment of fig. 12 to 14, the heat transfer portion 190 may be arranged in the form of a plurality of metal strips to surround the outer circumferential surface of the cooling portion 130. The plurality of metal strips constituting the heat transfer portion 190 may be arranged to be spaced apart from each other.

Referring to fig. 12, the heat transfer portion 191 may surround the outer circumferential surface of the first cooling section 131 of the cooling portion 130 in the form of a plurality of metal strips spaced apart from each other. In this case, the heat transfer portion 191 in the form of a plurality of metal strips may be arranged in parallel with the extending direction of the cooling portion 130. In other words, the plurality of metal strips may be arranged in parallel with the cooling portion 130.

Referring to fig. 13, the heat transfer portion 193 may be arranged in the form of a plurality of metal strips, and the plurality of metal strips may be arranged to be inclined with respect to the extending direction of the cooling portion 130. In other words, unlike the case shown in fig. 12, a plurality of metal strips may be arranged not parallel to the extending direction of the cooling portion 130. In detail, the plurality of metal strips may be arranged in a spiral shape surrounding the outer circumferential surface of the cooling part 130.

Referring to fig. 14, the heat transfer portion 195 may be arranged in the form of a plurality of metal strips that are substantially or essentially aligned with the extending direction of the cooling portion 130, and the plurality of metal strips may be arranged in a wave-like or serpentine shape.

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. Thus, 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 circumferential surface of each of the tobacco media portion 110, the cooling portion 130, and the filter portion 150.

Each of the tobacco medium portion 110, the cooling portion 130, and the filter portion 150 constituting 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 segments, each of the multiple segments may be packaged by a separate wrapper or the multiple segments may be packaged by a single wrapper. Thus, 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 repackaged in their entirety 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 conventional wrapper. For example, the package 170 may be a porous or nonporous wrapper.

The package 170 may include a predetermined material therein. Here, the predetermined material may be silicon, but is not necessarily limited thereto. For example, silicon exhibits characteristics such as heat resistance, oxidation resistance, resistance to various chemical substances, 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 such 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, when the heater 370 of the aerosol-generating device 300 heats the tobacco media portion 110, there is a possibility that the aerosol-generating article 100 burns. In detail, the aerosol-generating article may burn when the temperature increases to a temperature above the ignition point of any of the materials included in the tobacco media portion 110.

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, a liquid substance may be generated in the aerosol-generating article 100. For example, when the aerosol generated by the aerosol-generating article 100 is cooled by outside air, liquid substances and moisture may be generated.

Since the package 170 packages the tobacco medium portion 110, the cooling portion 130, and the filter portion 150, it is possible to prevent the liquid substance generated in the aerosol-generating article 100 from leaking out of the aerosol-generating article 100. 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 and appearance of the aerosol-generating article 100 may vary depending on the shape of the package 170. For example, characters, patterns, symbols, images may be printed onto the package 170. The characters, patterns, symbols, images printed onto the package 170 may be varied so that the aerosol-generating article 100 may provide various visual information.

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

Fig. 15 is a cross-sectional view illustrating an aerosol-generating article according to a second embodiment of the present disclosure. Fig. 16-18 are illustrations showing other embodiments of tobacco media portions of aerosol-generating articles. Fig. 19 is a diagram showing another example of a filter portion of the aerosol-generating article shown in fig. 15.

Referring to fig. 15, the structure of the aerosol-generating article according to the second embodiment remains the same as the structure of the aerosol-generating article 100 according to the first embodiment, except for the tobacco media portion 110 and the cooling portion 130. Therefore, a repetitive description of the same configuration will be omitted.

Unlike the cooling portion 130 according to the first embodiment, according to the present embodiment, as shown in fig. 15, the cooling portion 130 may include one section. In other words, although the cooling portion 130 according to the first embodiment described above includes two sections, the cooling portion 130 according to the present embodiment includes one section.

In this case, the cooling portion 130 may remain the same as the above-described second cooling section 133 according to the first embodiment in terms of shape and material.

The cooling portion 130 may have a tubular shape to allow the aerosol to pass through the cooling portion 130. In detail, the cooling part 130 may have a through hole T in the cooling part 130. The through-hole T is a space formed in the center of the cooling portion 130, and the through-hole T may allow the aerosol to move from the tobacco medium portion 110 to the filter portion 150 therethrough.

The high temperature aerosol introduced into the inlet of the cooling part 130 may be cooled while passing through the through-hole T of the cooling part 130. During the process of cooling the aerosol, heat from the aerosol may pass through the body of the cooling portion 130 and be dissipated to the outside.

The body of the cooling portion 130 may be manufactured by adding a plasticizer such as glyceryl triacetate to the cellulose acetate tow. Alternatively, the body of the cooling portion 130 may be made of laminated paper including a plurality of paper layers. The body of the cooling portion 130 may include other additives such as fragrances, humectants, and/or organic acids.

In some embodiments, the heat transfer portion 190 may be arranged to surround the outer circumferential surface of the cooling portion 130. As in the first embodiment, the heat transfer portion 190 may extend from an inlet of the cooling portion 130 that is in contact with the tobacco media portion 110. In this case, the heat transfer portion 190 may extend to a position before the plurality of openings 160 of the cooling portion 130. However, the heat transfer portion 190 is not necessarily limited thereto, and the heat transfer portion 190 may be arranged to surround a part or all of the cooling portion 130.

Meanwhile, in the present embodiment, as in the first embodiment described above, the tobacco medium portion 110 may include one section filled with tobacco medium. Here, the tobacco medium portion 110 may be identical in shape and material to the above-described tobacco medium portion 110 according to the first embodiment.

Fig. 16-18 illustrate other examples of a tobacco media portion 110 according to an embodiment, wherein the tobacco media portion 110 may include two sections.

Referring to fig. 16, the tobacco media portion 110 may include a first tobacco section 111 and a second tobacco section 113. The first tobacco section 111 may remain the same as the tobacco media portion 110 described above according to the first embodiment in terms of material and shape. For example, the first tobacco section 111 may comprise tobacco media, and the tobacco media may be made in the form of sheets or strips. In addition, the tobacco medium may be made into the form of tobacco shreds obtained by finely cutting tobacco sheets. In addition, the tobacco media may be made in the form of particles comprising tobacco.

The second tobacco segment 113 may be a cellulose acetate filter. For example, the second tobacco segment 113 may be manufactured by adding a plasticizer, such as glyceryl triacetate, to the cellulose acetate tow. In addition, aerosol-generating material may be included in the cellulose acetate tow.

Nicotine may be removed from the aerosol-generating substance comprised in the second tobacco segment 113. For example, the second tobacco segment 113 can include at least one of glycerin, propylene glycol, ethylene glycol, dipropylene glycol, diethylene glycol, triethylene glycol, tetraethylene glycol, and oleyl alcohol. However, the aerosol-generating substance included in the second tobacco segment 113 is not necessarily limited thereto.

The second tobacco portion 113 may have a through-hole for allowing aerosol from the outside to be introduced therethrough to form mainstream smoke within the interior of the aerosol-generating article 100. The through-hole formed in the second tobacco section 113 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.

Referring to fig. 17, the tobacco media portion 110 can include a first tobacco segment 111 and a third tobacco segment 115. The first tobacco section 111 may remain the same as the first tobacco section 111 described above in terms of material and shape. Meanwhile, the third tobacco section 115 is located in front of the first tobacco section 111, and the third tobacco section 115 may comprise a curled sheet impregnated with an aerosol-generating substance.

Referring to fig. 18, the tobacco media portion 110 may include a fourth tobacco segment 117 and a fifth tobacco segment 119. The fourth tobacco section 117 and the fifth tobacco section 119 may be in the form of a liquid nicotine solution or nicotine salt impregnated into a curled sheet.

Fig. 19 shows a modified example of the filter portion 150 according to the present embodiment, in which a concave portion 180 may be formed downstream of the filter portion 150. The concave portion 180 has the following structure: in this configuration, the wrapper 170 surrounding the filter portion 150 extends further downstream beyond the filter portion 150. In other words, in this embodiment, the package 170 extends further outwardly beyond the filter portion 150 than in the aerosol-generating article 100 described above according to other embodiments. Depending on the shape of the package 170, the filter portion 150 may have a concave stick shape.

The concave portion 180 may prevent nicotine stains formed at the end of the filter portion 150 from being easily exposed to the outside. Thus, the nicotine stain formed at the filter portion 150 of the aerosol-generating article 100 may not be exposed to the exterior during or after smoking, resulting in an improved aesthetic appearance.

Hereinafter, a process in which the heat transfer portion 190 insulates the aerosol in the aerosol-generating article 100 according to some embodiments or cools the aerosol in the aerosol-generating article 100 according to some embodiments will be described with reference to fig. 20 and 21.

Fig. 20 is a diagram showing a process in which a heater of an aerosol-generating device heats an aerosol-generating article according to the prior art. Fig. 21 is a diagram illustrating a process in which a heater of an aerosol-generating device heats an aerosol-generating article according to a second embodiment of the disclosure.

Referring to fig. 20, in the prior art, one type of heater 390 is arranged around the entire tobacco media portion 110 to uniformly heat the entire tobacco media portion 110. Since the heater 390 is arranged to extend to the top of the aerosol-generating device 300, there is a possibility that the aerosol-generating device 300 is heated to a high temperature, thereby causing burn of the user.

Referring to fig. 21, the heat transfer portion 190 is disposed at an inlet side of the cooling portion 130 adjacent to the tobacco media portion 110 such that the heater 390 of the aerosol-generating device 300 may be disposed with a predetermined gap G from a downstream side of the tobacco media portion 110. Accordingly, the top of the aerosol-generating device 300 is not heated to a high temperature by the heater 390, thereby preventing a user in contact with the top of the aerosol-generating device 300 from being burned.

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

Fig. 22 is a schematic diagram showing a configuration of an embodiment of an aerosol-generating device into which an aerosol-generating article is inserted. Fig. 23 is a diagram illustrating another embodiment of an aerosol-generating device.

Referring to fig. 22 and 23, the aerosol-generating device 300 according to the present embodiment may include heaters 370 and 390, a power supply 330, a controller 310, and an aerosol generator 350. Here, it will be understood by those of ordinary skill in the art related to the present embodiment that other general components besides those shown in fig. 22 and 23 may be included in the aerosol-generating device 300.

Meanwhile, in fig. 23, the power supply 330, the controller 310, and the aerosol generator 350 are illustrated as being arranged in a row or column in an adjacent manner. However, the arrangement of the power supply 330, the controller 310 and the aerosol generator 350 may be modified if desired. Further, as shown in fig. 22, the aerosol-generator 350 may be removed, and the aerosol-generating article 100 may operate by being heated 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 secured to the aerosol-generating device 300 by means of a securing device in an inserted manner. 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 heaters 370 and 390 may heat the aerosol-generating article 100. When the heaters 370 and 390 are heated by the power supplied from the power supply 330, the heaters 370 and 390 may transfer heat to the aerosol-generating article 100.

Heaters 370 and 390 may be resistive heaters. Heaters 370 and 390 may include conductive tracks. The heaters 370 and 390 may heat the aerosol-generating article 100 when an electrical current supplied from the power supply 330 flows through the conductive tracks.

As another example, heaters 370 and 390 may be induction heaters. The heaters 370 and 390 may comprise conductive coils to heat the aerosol-generating article 100 by an induction heating method, and the aerosol-generating article 100 may comprise a susceptor to which the induction heater may heat.

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 heaters 370 and 390, and the power supply 330 may supply power for operating the controller 310. In addition, the power supply 330 may supply power to operate 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 comprised 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 a tobacco-containing substance having volatile tobacco flavor components, or the liquid composition may be a liquid comprising a non-tobacco substance. The liquid reservoir may be manufactured attached to the aerosol-generating device 300 or separate from the aerosol-generating device 300, or may be manufactured in an integral manner with the aerosol-generating device 300.

When the aerosol generator 350 according to embodiments of the present disclosure includes a liquid comprising a non-tobacco material, the liquid composition stored in the liquid reservoir included 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 comprising nicotine. In this case, the aerosol that does not contain nicotine may pass through the tobacco media portion 110 and absorb 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 flavor may include menthol, peppermint, spearmint oil, or various fruit flavor ingredients, but is not necessarily limited thereto. The flavoring agent may include ingredients capable of providing 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 limited thereto. In addition, the liquid composition may include aerosol formers such as glycerin and propylene glycol.

Although 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 present 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;

a cooling portion disposed between the tobacco media portion and the filter portion; and

a heat transfer portion surrounding at least a portion of the cooling portion.

2. An aerosol-generating article according to claim 1, wherein an edge of the heat transfer portion is positioned to surround a portion of the aerosol-generating article corresponding to an inlet of the cooling portion, the inlet of the cooling portion being in contact with the tobacco media portion.

3. An aerosol-generating article according to claim 2, wherein the cooling portion comprises:

a first cooling section in contact with the tobacco media portion; and

a second cooling section disposed between the first cooling section and the filter portion.

4. An aerosol-generating article according to claim 3, wherein the heat transfer portion surrounds at least a portion of the first cooling section.

5. An aerosol-generating article according to claim 4, wherein the heat transfer portion surrounds at least a portion of the second cooling section.

6. An aerosol-generating article according to claim 3, wherein the first cooling section comprises cellulose acetate tow and the second cooling section comprises a paper material.

7. An aerosol-generating article according to claim 1, wherein the cooling portion has a tubular shape.

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

9. An aerosol-generating article according to claim 8, wherein at least one of the plurality of segments comprises tobacco media.

10. An aerosol-generating article according to claim 1, wherein the heat transfer portion is in the form of a metal foil.

11. An aerosol-generating article according to claim 10, wherein the heat transfer portion comprises at least one of aluminium, copper, ferrite or martensite.

12. An aerosol-generating article according to claim 10, wherein the heat transfer portion comprises a plurality of metal strips.

13. An aerosol-generating article according to claim 12, wherein the plurality of metal strips are spaced apart from one another.

14. An aerosol-generating article according to claim 13, wherein the plurality of metal strips are arranged parallel to the length direction of the cooling portion.

15. An aerosol-generating article according to claim 13, wherein the plurality of metal strips are arranged inclined with respect to the length direction of the cooling portion.