Aerosol-generating article, thread filter, and cooling article comprising a thread filter

Abstract

An aerosol production product according to one aspect includes an aerosol generating section containing an aerosol generating material; a tobacco filling section disposed at the downstream end of the aerosol generating section; a cooling section disposed at the downstream end of the tobacco filling section and configured to cool the aerosol; and a thread filter disposed at the downstream end of the cooling section and including a filter member and a thread member having different aerosol flow rates.

Description

Technical Field

[0001] The present invention relates to an aerosol generating article, a thread filter, and a cooling article including the thread filter.

Background Art

[0002] Recently, there has been an increasing demand for alternative methods to overcome the disadvantages of conventional cigarettes. For example, there has been an increasing demand for a method of generating an aerosol by heating an aerosol generating substance in an aerosol generating article, rather than by burning a conventional cigarette to generate an aerosol. As a result, research on heated cigarettes or heated aerosol generating devices has been actively carried out.

Summary of the Invention

Problems to be Solved by the Invention

[0003] The problem to be solved by the present invention is to provide an aerosol generating article, a thread filter, and a cooling article including the thread filter. The technical problems to be solved by the present invention are not limited to the above technical problems, and there may be other technical problems.

Means for Solving the Problems

[0004] An aerosol generating article according to an embodiment includes an aerosol generating part containing an aerosol generating substance; a tobacco filling part disposed at a downstream end of the aerosol generating part; a cooling part disposed at a downstream end of the tobacco filling part and configured to cool the aerosol; and a thread filter disposed at a downstream end of the cooling part and including a filter member and a thread member having different aerosol flow rates from each other.

[0005] The thread member according to the embodiment may be made of a material different from that of the filter member.

[0006] According to an embodiment, the thread filter for an aerosol generating article includes: a filter member made of a first material; and a thread member surrounded by the filter member and made of a second material different from the first material.

Advantages of the Invention

[0007] According to the present invention, the overall cooling ability and flavor persistence of the aerosol generating article can be improved.

Brief Description of the Drawings

[0008]

Figure 1

Figure 2

Figure 3

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Figure 4B

Figure 4C

Figure 4D

Figure 5A

Figure 5B

Figure 5C

Figure 5D

Figure 5E

Figure 5F

Figure 5G

Figure 6A

Figure 6B

Figure 6C

Figure 6D

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Figure 8

DETAILED DESCRIPTION OF THE INVENTION

[0009] According to one or more embodiments, the aerosol generating article includes: an aerosol generating part containing an aerosol generating substance, a tobacco filling part arranged at the downstream end of the aerosol generating part, a cooling part arranged at the downstream end of the tobacco filling part and configured to cool the aerosol; and a thread filter arranged at the downstream end of the cooling part and including a filter member and a thread member having different aerosol flow rates from each other.

[0010] Also, the thread member can be made of a material different from that of the filter member.

[0011] Also, the thread member has a density greater than that of the filter member so that a larger amount of aerosol flows through the filter member than through the thread member.

[0012] Also, the thread member has a density in the range of 450 kg / m 3 ~750 kg / m 3 The filter member has a density in the range of 60 kg / m 3 ~140 kg / m3 It has a density within a range.

[0013] Also, the thread member can be made of polylactic acid. The filter member can be made of cellulose acetate.

[0014] Also, the filter member has a volume that is even larger than that of the thread member.

[0015] Also, the length of the thread member is shorter than that of the filter member. The thread member can be spaced apart from the downstream end of the thread filter.

[0016] Also, the thread member can be disposed at the center of the region occupied by the filter member.

[0017] Also, at least one of the thread member and the filter member contains a flavoring agent.

[0018] Also, at least one or more perforations can be formed in the cooling part for external air to flow in.

[0019] Also, the distance between the perforation and the downstream end of the cooling part is longer than the distance between the perforation and the upstream end of the cooling part.

[0020] Also, the aerosol generating article according to one embodiment further includes a thermally conductive trumpet for conducting heat. The thermally conductive trumpet can be disposed outside the aerosol generating part and the tobacco filling part.

[0021] According to one or more embodiments, a thread filter for an aerosol generating article includes: a filter member made of a first material; and a thread member surrounded by the filter member and made of a second material different from the first material.

[0022] Further, the thread member has a density greater than that of the filter member such that a greater amount of aerosol flows through the filter member than through the thread member.

[0023] According to one or more embodiments, a cooling article for an aerosol-generating article includes: a cooling part for cooling an aerosol, and a thread filter disposed at one end of the cooling part. The thread filter includes a filter member for the flow of an aerosol and a thread member formed of a material different from that of the filter member.

[0024] The terms used in the embodiments are, as much as possible, general terms that are currently widely used while taking into account the functions in the present invention. However, they may also vary depending on the intentions or precedents of those skilled in the art, the emergence of new technologies, etc. In addition, in certain cases, there are terms arbitrarily selected by the applicant, and in such cases, the meaning thereof will be described in detail in the description part of the invention. Therefore, the terms used in the present invention must be defined based not on the simple names of the terms but on the meanings the terms have and the overall content of the present invention.

[0025] Throughout the specification, when a part states that a certain component "includes", it means that, unless otherwise specifically stated to the contrary, it does not exclude other components and may further include other components.

[0026] Also, terms including ordinal numbers such as "first" or "second" used in the present specification can be used to describe various components, but the components should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from another.

[0027] Also, throughout the present specification, the term "downstream" refers to the longitudinal direction of the aerosol-generating article that moves toward the user's mouth side in the aerosol-generating article during smoking, and the term "upstream" refers to the opposite direction. The terms "downstream" and "upstream" can be used to indicate the relative positions of the components of the aerosol-generating article.

[0028] The term "aerosol-generating article" refers to any article designed to be puffed on and smoked by a person. An aerosol-generating article contains an aerosol-forming substance that is heated without combustion to generate an aerosol. For example, one or more aerosol-generating articles can be loaded into an aerosol-generating device and can generate an aerosol when heated by the aerosol-generating device. The shape, size, material, and structure of the aerosol-generating article also vary by embodiment. Examples of aerosol-generating articles include, but are not limited to, cigarette-shaped substrates and cartridges. Hereinafter, the term "cigarette" (i.e., when used alone without modifiers such as "general", "traditional", or "combustible") can refer to an aerosol-generating article having a shape similar to that of a traditional combustible cigarette.

[0029] As used herein, expressions such as "at least one", when preceding a list of elements, modify the entire list of elements and not the individual elements of the list. For example, the expression "at least one of a, b, and c" must be understood to include only a, only b, only c, both a and b, both a and c, both b and c, or all of a, b, and c.

[0030] When an element or layer is referred to as "over", "above", "on", "connected to", or "coupled to" another element or layer, it can be directly over, above, on, connected to, or coupled to the other element or layer, or there may be intervening elements or layers. In contrast, when an element is further referred to as directly over, directly above, directly on, directly connected to, or directly coupled to another element or layer, there are no intervening elements or layers. The same numerals refer to the same elements throughout. One or more embodiments of the present invention relate to an aerosol-generating article, a thread filter, a cooling article including the thread filter, and an aerosol-generating device. Since the thread filter and the cooling article including the thread filter are included in the aerosol-generating article, they will be described together while describing the aerosol-generating article.

[0031] An aerosol-generating article according to one embodiment includes at least one of an aerosol generation part, a tobacco filling part, a cooling part, and a filter part (for example, a mouthpiece or a mouthpiece part). Here, the filter part is also a thread filter according to the embodiment. For example, the filter part is usually also an acetate filter, and the cooling part and the filter part contain capsules and flavoring agents.

[0032] An aerosol-generating article according to still another embodiment may contain nicotine in the aerosol generation part.

[0033] On the other hand, the materials, order, and lengths of the aerosol generation part and the tobacco filling part are not limited to specific examples, and the materials and lengths of the cooling part and the filter part are also not limited to specific examples.

[0034] The aerosol generating device generates an aerosol containing nicotine by heating an aerosol generating part and a tobacco filling part, and the aerosol is discharged to the outside through a cooling part and a filter part.

[0035] For example, the aerosol generating device can generate an aerosol by heating at least one of the aerosol generating part and the tobacco filling part of the aerosol generating article. Alternatively, the aerosol generating device can selectively or overall heat the inside or outside of the aerosol generating article.

[0036] A sheet made of a heat conductive material is disposed on the outer contours of the aerosol generating part and the tobacco filling part of the aerosol generating article, and cigarette paper for fixing the segments of the aerosol generating article can be disposed on the outer contour of the sheet. At this time, the aerosol generating device can generate an aerosol by uniformly heating the outside of the sheet of the heat conductive material.

[0037] Hereinafter, based on the accompanying drawings, embodiments of the present invention will be described in detail so that those having ordinary knowledge in the technical field to which the present invention pertains can easily implement them. However, the present invention can also be embodied in various different forms and is not limited to the embodiments described herein.

[0038] Also, even if omitted in the following description, the content described above may correspond to the aerosol generating article, the thread filter, the cooling article including the thread filter, and the aerosol generating device according to the present invention.

[0039] FIG. 1 is a schematic perspective view showing an example related to an aerosol generating article.

[0040] The aerosol generating article 1 includes a plurality of constituent units (i.e., segments or parts). Referring to FIG. 1, the aerosol generating article 1 includes an aerosol generating section 11, a tobacco filling section 12, a cooling section 13, and a thread filter 14 including a filter member 141 and a thread member 142. Since the cooling section 13 and the thread filter 14 serve to cool the aerosol, they are collectively referred to as the cooling article 10.

[0041] The aerosol generating article 1 according to one embodiment is formed to have a length of 45 to 90 mm and also to have a diameter of 4.5 to 8 mm, which is exemplary and not limited to a specific length and diameter. The materials, order, and length of the aerosol generating section 11 and the tobacco filling section 12 are not limited to specific examples, and the materials and length of the cooling section 13 and the thread filter 14 are also not limited to specific examples.

[0042] Referring to FIG. 1, the aerosol generating section 11 does not contain nicotine. Further, the aerosol generating section 11 contains an aerosol generating substance that does not contain nicotine. For example, the aerosol generating section 11 contains at least one of glycerin, propylene glycol, ethylene glycol, dipropylene glycol, diethylene glycol, triethylene glycol, tetraethylene glycol, and oleyl alcohol, which are exemplary and not limited to specific examples. For example, the aerosol generating section 11 contains a substance in which glycerin and propylene glycol are mixed at a ratio of about 8:2. However, it is not limited to the above-described mixing ratio. Further, the aerosol generating section 11 contains other additive substances such as flavoring agents, wetting agents, and / or organic acids, and also contains a flavoring liquid such as menthol or a moisturizing agent.

[0043] The aerosol generating section 11 includes a wound sheet, and the aerosol generating substance is contained in the wound sheet. Further, other additive substances such as flavoring agents, wetting agents, and / or organic acids and the flavoring liquid may be contained in the wound sheet.

[0044] The crimped sheet is also a sheet made of a polymer material. For example, the polymer material includes at least one of paper, cellulose acetate, lyocell, and polylactic acid. For example, the crimped sheet is also a paper sheet that does not generate an odor due to heat even when heated to a high temperature. However, it is not limited thereto.

[0045] The aerosol generating part 11 is also formed to have a length in the range of 4 mm to 12 mm, but this is exemplary and not limited to a specific length. Desirably, the aerosol generating part 11 is also formed to have a length of about 10 mm.

[0046] Referring to FIG. 1, the tobacco filling part 12 can be arranged at the downstream end of the aerosol generating part 11. The aerosol generated in the aerosol generating part 11 flows to the cooling part 13 through the tobacco filling part 12. The other end (i.e., the upstream end) of the aerosol generating part 11 can be exposed to the outside.

[0047] The tobacco filling part 12 contains nicotine. Also, the tobacco filling part 12 contains aerosol product substances such as glycerin and propylene glycol. Also, the tobacco filling part 12 contains other additive substances such as flavoring agents, wetting agents, and / or organic acids. Also, a flavoring liquid such as menthol or a moisturizing agent can be added to the tobacco filling part 12 by spraying it into the tobacco filling part 12.

[0048] As an example, the aerosol product substances include cut tobacco or reconstituted tobacco substances. Specifically, the aerosol product substances contain nicotine, and the nicotine is obtained by shaping or reconstituting tobacco leaves. As another example, the aerosol product substances include free base nicotine, nicotine salt, or a combination thereof. Specifically, the nicotine is also natural nicotine or synthetic nicotine.

[0049] For example, the tobacco filling part 12 contains blends of different types of tobacco leaves. Also, the blend is processed through various processing steps. The tobacco filling part 12 is not limited to a specific blend.

[0050] The nicotine salt is formed by adding an appropriate acid containing an organic or inorganic acid to nicotine. The acid for forming the nicotine salt can be appropriately selected considering factors such as the blood nicotine absorption rate, the heating temperature of the heater, flavor or taste, solubility, etc. For example, the acid for forming the nicotine salt can 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 a mixture of two or more acids selected from the said group, but this is exemplary and not limited to specific examples.

[0051] The tobacco filling part 12 can be manufactured in various ways. For example, the tobacco filling part 12 can be manufactured in a sheet form or in a strand form. Also, the tobacco filling part 12 can be composed of shredded tobacco in which the tobacco sheet is finely cut.

[0052] The length of the tobacco filling part 12 can adopt an appropriate length within the range of 6 mm to 18 mm, but it is not limited thereto. Desirably, the tobacco filling part 12 is also formed to have a length of about 12 mm.

[0053] The cooling part 13 is disposed at one end (i.e., the downstream end) of the tobacco filling part 12 and is used to cool the aerosol. The aerosol flowing through the tobacco filling part 12 to the cooling part 13 is cooled to a predetermined temperature and flows to the thread filter 14. An aerosol generating part 11 can be disposed at the other end (i.e., the upstream end) of the tobacco filling part 12.

[0054] The cooling part 13 can be made of cellulose acetate. For example, the cooling part 13 can be made by adding a plasticizer (such as triacetin) to cellulose acetate tow. For example, the monodenier of the cooling part 13 is 5.0 and the total denier is 28,000, but this is exemplary and not limited to a specific monodenier.

[0055] The cooling part 13 is also a tubular structure made of paper and containing a hollow inside. The diameter of the hollow included in the cooling part 13 can adopt an appropriate diameter within the range of 4 mm to 8 mm, but this is exemplary and not limited to a specific diameter. Desirably, the hollow of the cooling part 13 is also formed to have a diameter within the range of 7.0 mm to 7.5 mm. The cooling part 13 is also formed to have a length within the range of 4 mm to 30 mm, but this is exemplary and not limited to a specific length. Desirably, the cooling part 13 is also formed to have a length of about 12 mm.

[0056] The cooling part 13 is made of a laminated paper composed of multiple sheets of paper. For example, the cooling part 13 can also be made of a laminated paper composed of an outer paper, an intermediate paper, and an inner paper, but is not limited thereto. On the other hand, the inner surface of the inner paper constituting the laminated paper can be coated with a predetermined substance (such as polylactic acid).

[0057] On the other hand, when the cooling part 13 is made of paper, the overall thickness of the cooling part 13 is within the range of 330 μm to 340 μm. Desirably, the overall thickness of the cooling part 13 is also about 333 μm, but this is exemplary and not limited to a specific thickness.

[0058] Also, when the cooling part 130 is made of paper, the overall basis weight of the cooling part 13 is 2 ~250 g / m 2 within the range. Desirably, the overall basis weight of the cooling part 13 is also about 240 g / m 2 but is not limited thereto.

[0059] At least one perforation 131 for allowing external air to flow in may be formed in the cooling unit 13. Thereby, the aerosol generating article 1 according to the embodiment can cool the aerosol using external air, so that the overall cooling ability can be improved. Further, when the user puffs on the aerosol generating article 1, external air can flow in through the perforation 131 to improve the atomization amount.

[0060] The perforation 131 may be formed in each of the cooling unit 13 and the packaging material (bellows) 15 (Figs. 4A to 4D). In that case, the perforation 131 formed in the cooling unit 13 and the perforation 131 formed in the packaging material 15 are located at corresponding positions.

[0061] Although not shown, the perforation 131 may be formed to penetrate the cooling unit 13 along the radial direction. The radial direction is also a direction perpendicular to the longitudinal direction (i.e., the lengthwise direction) in which the aerosol generating article 1 extends. The perforation 131 is embodied as a generally cylindrical hole as a whole, but this is exemplary and there is no limitation on the form as long as external air can flow in.

[0062] The distance between the perforation 131 and the downstream end of the cooling unit 13 may be formed longer than the distance between the perforation 131 and the upstream end of the cooling unit 13. Thereby, the cooling effect through the perforation 131 can start from a point relatively far from the thread filter 14. Therefore, the aerosol generating article 1 can further improve the cooling ability by external air because the residence time of the external air inside the cooling unit 13 increases.

[0063] The cooling unit 13 and the perforation 131 are not limited to the above-described examples and may apply without limitation as long as they can perform the function of cooling the aerosol.

[0064] FIG. 2 is a schematic perspective view of a thread filter 14 according to an embodiment.

[0065] Referring to FIGS. 1 and 2, the thread filter 14 is disposed at the downstream end of the cooling section 13. The aerosol cooled through the cooling section 13 can be inhaled by the user through the thread filter 14.

[0066] The thread filter 14 includes a filter member 141 that provides different aerosol flow rates and a thread member 142.

[0067] The filter member 141 provides a primary flow passage for the aerosol. That is, the filter member 141 has a higher aerosol flow rate than the thread member 142. The filter member 141 can be manufactured by adding a plasticizer (e.g., triacetin) to cellulose acetate tow. The filter member 141 is also formed to have a length within the range of 4 mm to 30 mm, which is exemplary and not limited to a specific length. Desirably, the filter member 141 is also formed to have a length of about 14 mm.

[0068] The filter member 141 is also manufactured to generate a fragrance. As an example, a flavoring liquid can be sprayed onto the filter member 141, and separate fibers coated with the flavoring liquid can be inserted inside the filter member 141.

[0069] In addition, the filter member 141 includes at least one capsule. As an example, the capsule contains a fragrance liquid, and the fragrance can be generated by the leaked fragrance liquid when the capsule is crushed. As another example, the capsule contains an aerosol product substance, and the aerosol can be generated by the leaked substance when the capsule is crushed. The capsule is also a structure that covers and wraps the fragrance liquid or aerosol product substance with a film. The capsule has a spherical or cylindrical shape, but is not limited thereto.

[0070] The thread member 142 is arranged in an area not occupied by the filter member 141. The thread member 142 has a specific shape and is either coupled to the filter member 141 or in a state of being mixed with the filter member 141. The thread member 142 is also formed to have a length in the range of 4 mm to 30 mm, but this is exemplary and not limited to a specific length. Also, the thread member 142 can be formed in a cylindrical shape extending in the longitudinal direction as a whole, but this is exemplary and not limited to a specific shape.

[0071] At least one of the thread member 142 and the filter member 141 contains a flavoring agent.

[0072] For this purpose, for example, a flavoring liquid can be sprayed onto the thread member 142, and separate fibers coated with the flavoring liquid can be inserted inside the thread member 142. Also, the thread member 142 contains at least one capsule. As an example, the capsule contains a fragrance liquid, and a fragrance can be generated by the fragrance liquid leaking when the capsule is crushed. As another example, the capsule contains an aerosol product substance, and an aerosol can be generated by the substance leaking when the capsule is crushed. The capsule also has a structure in which the fragrance liquid or the aerosol product substance is covered with a film. The capsule has a spherical or cylindrical shape, but is not limited thereto.

[0073] When the thread member 142 and the filter member 141 each contain a flavoring agent, the first flavoring agent contained in the thread member 142 and the second flavoring agent contained in the filter member 141 may be different from each other. As an alternative, the first flavoring agent and the second flavoring agent may be the same.

[0074] The thread member 142 can be made of a material different from that of the filter member 141. For example, the thread member 142 can be made of a material having a density greater than that of the filter member 141. In that case, more aerosol can flow through the filter member 141 than through the thread member 142. Therefore, in the aerosol generating article 1 according to the embodiment, the fragrance contained in the thread member 142 can stay in the thread member 142 for a relatively long time, so that the fragrance persistence can be improved. For example, the thread member 142 has a density in the range of 450 kg / m 3 ~750 kg / m 3 and the filter member 141 can have a density in the range of 60 kg / m 3 ~140 kg / m 3 .

[0075] The thread member 142 can be made of a material that can cool the aerosol. Thereby, the aerosol generating article 1 cools the aerosol through the cooling part 13 and cools the aerosol again through the thread member 142 to provide an improved cooling effect. For example, the thread member 142 contains polylactic acid.

[0076] The thread member 142 is also formed to have a smaller volume than the filter member 141. Thus, the aerosol generating article 1 according to the embodiment can increase the area where the aerosol can easily flow on the thread filter 14, and therefore can improve the atomization amount. The thread member 142 has a smaller diameter than the filter member 141.

[0077] Referring to FIG. 2, the thread member 142 can be disposed at the center of the area occupied by the filter member 141. Thereby, the aerosol generating article 1 according to the embodiment can be embodied such that the fragrance contained in the thread member 142 is uniformly diffused in the radial direction.

[0078] FIG. 3 is a schematic side sectional view of a thread filter 14 according to another embodiment.

[0079] Referring to FIG. 3, along the longitudinal direction of the aerosol generating article, the thread member 142 is shorter than the filter member 141. In that case, the thread member 142 can be arranged at a distance from the downstream end 14a of the thread filter 14. Thus, the thread member 142 is not exposed outside the downstream end 14a of the thread filter 14, and damage to the thread member 142 by external foreign matter can be prevented. In FIG. 3, it is illustrated that the thread member 142 is separated from the downstream end 14a of the thread filter 14 and extends to the upstream end 14b of the thread filter 14. However, that is exemplary, and the thread member 142 can be arranged at a distance from each of the one end 14a and the other end 14b of the thread filter 14.

[0080] FIGS. 4A to 4D are schematic side sectional views showing an example of the aerosol generating article.

[0081] Referring to FIG. 4A, the outer contour of the aerosol generating article 1 is covered with the packaging material 15. Also, a heat conductive bellows 16 for conducting heat can be arranged in a partial area or the entire area between the packaging material 15 and the aerosol generating part 11 and the tobacco filling part 12. The heat conductive bellows 16 can be arranged outside the aerosol generating part 11 and the tobacco filling part 12.

[0082] Referring to FIG. 4B, the tobacco filling part 12 includes a cooling hole 121. In that case, the primary cooling of the aerosol is advanced in the cooling hole 121 of the tobacco filling part 12, and the secondary cooling is advanced in the cooling part 13 through which the primarily cooled aerosol passes. Therefore, the aerosol generating article 1 according to the embodiment can have an improved overall cooling ability. On the other hand, the cooling hole 121 is not provided depending on the material of the cooling part 13.

[0083] Referring to FIG. 4C, the aerosol generating part 11 can be arranged at the downstream end of the tobacco filling part 12. That is, in the aerosol generating article 1 of FIG. 4A and the aerosol generating article 1 of FIG. 4C, the arrangement order of the aerosol generating part 11 and the tobacco filling part 12 is different from each other.

[0084] Referring to FIG. 4D, a heat conductive bellows 16 can be disposed on the outside of a part of the tobacco filling portion 12 and the aerosol generating portion 11. That is, the heat conductive bellows 16 is also formed to have a length shorter than that of the combined aerosol generating portion 11 and tobacco filling portion 12.

[0085] FIGS. 5A to 5G are schematic side sectional views showing other examples of the aerosol generating article.

[0086] Compared with FIGS. 4A to 4D, FIGS. 5A to 5E illustrate examples in which nicotine is contained in the aerosol generating portions 21, 211, 212, 213. Further, FIGS. 5F and 5G illustrate examples in which the aerosol generating portion 24 and the nicotine-containing portion 25 are separate segments.

[0087] The aerosol generating portions 21, 211, 212, 213 in FIGS. 5A to 5E may correspond to the combination of the aerosol generating portion 11 and the tobacco filling portion 12 in FIGS. 4A to 4D. On the other hand, the aerosol generating portion 24 in FIGS. 5F and 5G may correspond to the aerosol generating portion 11 in FIGS. 4A to 4D.

[0088] The outer shell of the aerosol generating article 2 in FIGS. 5A to 5G is covered with a packaging material 15. Also, optionally, the aerosol generating article 2 further includes a heat conductive bellows 16. As an alternative, as shown in FIG. 5B, the aerosol generating article 2 does not include a heat conductive bellows 16.

[0089] The aerosol generating portion 21 is a single segment in FIG. 5A, while the aerosol generating portion 21 includes multiple segments 211, 212 according to one embodiment as shown in FIG. 5C.

[0090] Referring to FIGS. 5D and 5E, the aerosol generating article 2 includes a length extension portion 214 made of cellulose acetate. For example, the length extension portion 214 can be manufactured by adding a plasticizer (e.g., triacetin) to cellulose acetate tow.

[0091] The cooling unit 22 and the filter members 231 and thread members 232 of the thread filter 23 illustrated in FIGS. 5A to 5G are embodied substantially the same as those described with reference to FIGS. 1 to 4D, and thus detailed descriptions thereof are omitted in this specification.

[0092] As shown in FIGS. 5F and 5G, the aerosol generating article 2 includes a nicotine-containing part 25. The nicotine-containing part 25 contains nicotine obtained by shaping or reconstructing tobacco leaves. Alternatively, the nicotine-containing part 25 contains free base nicotine, nicotine salt, or a combination thereof. For example, the nicotine-containing part 25 can be embodied by a coiled sheet impregnated with nicotine. Also, flavoring liquids or other additive substances such as flavoring agents, wetting agents, or organic acids can be included in the coiled sheet.

[0093] The coiled sheet is also a sheet made of a polymer material. For example, the polymer material includes at least one of paper, cellulose acetate, lyocell, and polylactic acid. For example, the coiled sheet is also a paper sheet that does not generate an odor due to heat even when heated to a high temperature. However, it is not limited thereto.

[0094] FIGS. 6A to 6D are schematic side sectional views showing examples related to the cooling unit of the aerosol generating article.

[0095] Referring to FIGS. 6A to 6D, examples of the cooling units 31, 32, 33, and 34 are illustrated.

[0096] Referring to FIGS. 6A to 6C, the cooling parts 31, 32, 33 include segments 312, 322, 332 made of polylactic acid and other segments 311, 321, 331. Here, the other segments 311, 321, 331 can be made of cellulose acetate and / or paper. Also, the other segments 311, 321, 331 may include a hollow, but are not limited thereto.

[0097] Referring to FIG. 6D, the cooling part 34 is also a tubular structure made of paper and including a hollow inside. For example, the inner or outer surface of the cooling part 34 can be coated with a predetermined substance (for example, polylactic acid).

[0098] Also, although not shown in FIGS. 1 to 6D, the aerosol generating articles 1, 2 further include a plug at the front end (i.e., the upstream end) of the aerosol generating article. For example, the plug can be made of cellulose acetate, but is not limited thereto.

[0099] FIGS. 7 and 8 are schematic drawings showing an example in which the aerosol generating article 1 is inserted into the aerosol generating device 100.

[0100] Referring to FIGS. 7 and 8, the aerosol generating device 100 includes a battery 101, a control unit 102, a heater 103, and an atomizer 104. Also, the aerosol generating article 1 can be inserted into the internal space of the aerosol generating device 100.

[0101] In the aerosol generating device 100 illustrated in FIGS. 7 and 8, the components according to this embodiment are illustrated. Therefore, those having ordinary knowledge in the technical field related to this embodiment will be able to understand that the aerosol generating device 100 further includes other general components in addition to the components illustrated in FIGS. 7 and 8.

[0102] Also, although FIGS. 7 and 8 illustrate that the aerosol generating device 100 includes the heater 103, the heater 103 can be omitted if necessary.

[0103] Figure 7 illustrates that the battery 101, the control unit 102, the vaporizer 104, and the heater 103 are arranged in a row. Further, Figure 8 illustrates that the vaporizer 104 and the heater 103 are arranged in parallel. However, the internal structure of the aerosol generating device 100 is not limited to what is illustrated in Figures 7 and 8. That is, depending on the design of the aerosol generating device 100, the arrangement of the battery 101, the control unit 102, the heater 103, and the vaporizer 104 can be changed.

[0104] When the aerosol generating article 1 is inserted into the aerosol generating device 100, the aerosol generating device 100 can operate the heater 103 and / or the vaporizer 104 to generate an aerosol from the aerosol generating article 1 and / or the vaporizer 104. The aerosol generated by the heater 103 and / or the vaporizer 104 passes through the aerosol generating article 1 and is transmitted to the user.

[0105] Optionally, even when the aerosol generating article 1 is not inserted into the aerosol generating device 100, the aerosol generating device 100 can heat the heater 103.

[0106] The battery 101 supplies the electric power used for the operation of the aerosol generating device 100. For example, the battery 101 can supply electric power so that the heater 103 or the vaporizer 104 is heated, and can supply the electric power necessary for the operation of the control unit 102. Further, the battery 101 can supply the electric power necessary for the operation of a display, a sensor, a motor, etc. provided in the aerosol generating device 100.

[0107] The control unit 102 generally controls the operation of the aerosol generating device 100. Specifically, the control unit 102 controls not only the battery 101, the heater 103, and the vaporizer 104, but also the operations of other components included in the aerosol generating device 100. Further, the control unit 102 can check the states of the respective components of the aerosol generating device 100 and determine whether the aerosol generating device 100 is in an operable state.

[0108] The control unit 102 includes at least one processor. The processor is implemented by an array of a large number of logic gates and can be implemented by a combination of a general-purpose microprocessor and a memory in which a program executed by the microprocessor is stored. Also, those having ordinary knowledge in the technical field to which the present embodiment belongs will be able to understand that it can also be implemented by other forms of hardware.

[0109] The heater 103 can be heated by the electric power supplied from the battery 101. For example, if a cigarette is inserted into the aerosol generating device 100, the heater 103 is located outside the cigarette. Therefore, the heated heater 103 can raise the temperature of the aerosol generating substance in the cigarette.

[0110] The heater 103 is also an electric resistance heater. For example, the heater 103 includes a conductive track, and when an electric current flows through the conductive track, the heater 103 can be heated. However, the heater 103 is not limited to the above-described example and can be applicable without limitation as long as it is heated to a desired temperature. Here, the desired temperature may be preset in the aerosol generating device 100 or may be set to a desired temperature by the user.

[0111] On the other hand, as another example, the heater 103 is also an induction heating type heater. Specifically, the heater 103 includes a conductive coil for heating the cigarette by an induction heating method, and the cigarette includes a susceptor that is heated by the induction heating type heater.

[0112] For example, the heater 103 includes a tubular heating element, a plate-shaped heating element, a needle-shaped heating element, or a rod-shaped heating element, and can heat the inside or outside of the aerosol generating article 1 depending on the shape of the heating element.

[0113] Also, a plurality of heaters 103 can be arranged in the aerosol generating device 100. In this case, the plurality of heaters 103 can be arranged so as to be inserted into the aerosol generating article 1, and can also be arranged outside the aerosol generating article 1. Also, among the plurality of heaters 103, some can be arranged so as to be inserted into the aerosol generating article 1, and the rest can be arranged outside the aerosol generating article 1. Also, the shape of the heater 103 is not limited to the shapes illustrated in FIGS. 7 and 8, and can also be manufactured in various shapes.

[0114] The vaporizer 104 heats the liquid composition to generate an aerosol, and the generated aerosol can be transmitted to the user through the aerosol generating article 1. That is, the aerosol generated by the vaporizer 104 moves along the air flow path of the aerosol generating device 100, and the air flow path can be configured such that the aerosol generated by the vaporizer 104 passes through the cigarette and is transmitted to the user.

[0115] For example, the vaporizer 104 may include, but is not limited to, a liquid storage unit, a liquid transfer means, and a heating element. For example, the liquid storage unit, the liquid transfer means, and the heating element may be included in the aerosol generating device 100 as independent modules.

[0116] The liquid storage unit can store the liquid composition. For example, the liquid composition is also a liquid containing a tobacco-containing substance containing a volatile tobacco flavor component, or a liquid containing a non-tobacco substance. The liquid storage unit is manufactured so as to be detached / attached from / to the vaporizer 104, and can be manufactured integrally with the vaporizer 104.

[0117] For example, the liquid composition contains water, a solvent, ethanol, a plant extract, a fragrance, a flavoring agent, or a vitamin mixture. The fragrance includes, but is not limited to, menthol, peppermint, spearmint oil, and aroma components of various fruits. The flavoring agent includes components that provide diverse fragrances or flavors to the user. The vitamin mixture may also be a mixture in which at least one of vitamin A, vitamin B, vitamin C, and vitamin E is mixed, but is not limited thereto. Further, the liquid composition includes an aerosol-forming agent such as glycerin and propylene glycol.

[0118] The liquid transfer means can transfer the liquid composition in the liquid storage unit to the heating element. For example, the liquid transfer means can also be a wick such as cotton fiber, ceramic fiber, glass fiber, or porous ceramic, but is not limited thereto.

[0119] The heating element is an element for heating the liquid composition transferred by the liquid transfer means. For example, the heating element can also be a metal heating wire, a metal hot plate, a ceramic heater, etc., but is not limited thereto. Further, the heating element is composed of a conductive filament such as a nichrome wire and can be arranged in a structure wound around the liquid transfer means. The heating element is heated by the supply of an electric current, transfers heat to the liquid composition in contact with the heating element, and can heat the liquid composition. As a result, an aerosol can be generated.

[0120] For example, the vaporizer 104 is also referred to as a cartomizer or an atomizer, but is not limited thereto.

[0121] On the one hand, in addition to the battery 101, the control unit 102, the heater 103, and the vaporizer 104, the aerosol generating device 100 further includes a general-purpose configuration. For example, the aerosol generating device 100 includes a display capable of outputting visual information and / or a motor for outputting tactile information. Further, the aerosol generating device 100 includes at least one sensor (for example, a puff sensing sensor, a temperature sensing sensor, a cigarette insertion sensing sensor, etc.). Also, the aerosol generating device 100 can be manufactured with a structure that allows external air to flow in or internal gas to flow out even when the aerosol generating article 1 is inserted.

[0122] Although not shown in FIGS. 7 and 8, the aerosol generating device 100 may form a system together with a separate cradle. For example, the cradle can be used to charge the battery 101 of the aerosol generating device 100. Alternatively, the heater 103 can be heated in a state where the cradle and the aerosol generating device 100 are coupled.

[0123] Inside the aerosol generating device 100, the entire first part can be inserted, and the second part can be exposed to the outside. Alternatively, only a part of the first part can be inserted inside the aerosol generating device 100, and the entire first part and a part of the second part can be inserted. The user can inhale the aerosol with the second part in the mouth. At this time, the aerosol is generated by the external air passing through the first part, and the generated aerosol is transmitted to the user's mouth through the second part.

[0124] As an example, the external air can flow into the aerosol generating device 100 through at least one air passage formed in the aerosol generating device 100. For example, the opening and closing of the air passage formed in the aerosol generating device 100 and / or the size of the air passage can be adjusted by the user. Thereby, the atomization amount, the smoking feeling, etc. can be adjusted by the user. As another example, the external air can flow into the aerosol generating article 1 through at least one hole formed on the surface of the aerosol generating article 1.

[0125] Those having ordinary knowledge in the technical field related to this embodiment can understand that it can be embodied in a modified form within the scope not departing from the essential characteristics described above. Therefore, the disclosed method should be considered from an illustrative rather than a limiting perspective. The scope of the present invention is shown not in the foregoing description but in the claims, and all differences within the equivalent scope thereof should be construed as being included in the present invention.

Claims

1. An aerosol generating part containing an aerosol generating substance, A tobacco filling part arranged at the downstream end of the aerosol generating part, A cooling part arranged at the downstream end of the tobacco filling part and configured to cool the aerosol, A thread filter including a filter member and a thread member arranged at the downstream end of the cooling part, wherein the flow rates of the aerosol through the filter member and the thread member are different from each other, The thread member is arranged at the center of the region occupied by the filter member, The thread member and the filter member contain the same or different flavoring agents, The thread member has a flow rate of aerosol smaller than that of the filter member. The thread member has a density in the range of 450 kg / m3 to 750 kg / m3, and the filter member has a density in the range of 60 kg / m3 to 140 kg / m3, The thread member has a smaller volume than the filter member, and an aerosol generating article.

2. The aerosol generating article according to claim 1, wherein the thread member is made of a material different from that of the filter member.

3. The thread member is made of polylactic acid, The aerosol generating article according to claim 1, wherein the filter member is made of cellulose acetate.

4. The length of the thread member in the longitudinal direction of the aerosol generating article is shorter than the length of the filter member in the longitudinal direction, The aerosol generating article according to claim 1, wherein the thread member is separated from the downstream end of the thread filter.

5. The aerosol generating article according to claim 1, wherein at least one or more perforations configured to allow external air to flow in are formed in the cooling part.

6. The aerosol generating article according to claim 5, wherein the distance between the perforation and the downstream end of the cooling part is longer than the distance between the perforation and the upstream end of the cooling part.

7. Further including a heat-conductive trumpet for conducting heat, The aerosol generating article according to claim 1, wherein the heat-conductive trumpet is arranged outside the aerosol generating part and the tobacco filling part.

8. A filter member made of a first material, A thread member surrounded by the filter member and made of a second material different from the first material. The thread member and the filter member contain the same or different flavoring agents. The thread member has an aerosol flow rate smaller than the aerosol flow rate of the aerosol of the filter member. The thread member has a density in the range of 450 kg / m3 to 750 kg / m3, and the filter member has a density in the range of 60 kg / m3 to 140 kg / m3. The thread member has a smaller volume than the filter member, and is a thread filter for an aerosol generating article.

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