Patent Grant
12262734
This application is a National Stage of International Application No. PCT/KR2021/000112, filed Jan. 6, 2021, claiming priority to Korean Patent Application No. 10-2020-0019083, filed Feb. 17, 2020.
The disclosure relates to an aerosol generating article including a composite heat source.
Recently, the demand for alternative methods to overcome the disadvantages of traditional cigarettes has increased. For example, research has been actively performed on technology for generating aerosols by delivering heat to an aerosol generating substrate that is physically separated from a combustible heat source.
However, it takes time until the combustible heat source is ignited and delivers the heat to the aerosol generating substrate.
An aerosol generating article according to embodiments may overcome technical shortcomings of the related art.
However, technical problems are not limited thereto, and other technical problems may be derived from the following examples.
A first aspect of the present disclosure may provide an aerosol generating article, including: a first portion including a composite heat source, a second portion adjacent to the first portion and including at least one of an aerosol generating material and a tobacco material; a third portion including a cooling material; and a fourth portion including a filter material, wherein the first portion, the second portion, the third portion, and the fourth portion are sequentially arranged with reference to a longitudinal direction of the aerosol generating article, and the composite heat source includes a combustible heat source and a combustible wick inserted into the combustible heat source.
According to embodiments, heat generated by a composite heat source may be efficiently transferred to an aerosol generating substrate.
Effects of the disclosure are not limited thereto, and may include all effects that may be derived from the following configurations.
A first aspect of the disclosure may provide an aerosol generating article, including: a first portion including a composite heat source; a second portion adjacent to the first portion and including at least one of an aerosol generating material and a tobacco material; a third portion including a cooling material; and a fourth portion including a filter material, wherein the first portion, the second portion, the third portion, and the fourth portion are sequentially arranged along a longitudinal direction of the aerosol generating article, and the composite heat source includes a combustible heat source, and a combustible wick inserted into the combustible heat source.
In an embodiment, the combustible wick may include a combustible body soaked with alcohol, a solid fuel, or a metal wire.
In an embodiment, when the first portion is combusted, a combustion rate of the combustible wick may be greater than a combustion rate of the combustible heat source.
In an embodiment, when the first portion is combusted, the combustible wick may be removed, and an air flow passage may be formed in the combustible heat source.
In an embodiment, the aerosol generating article may further include a first wrapper surrounding the first portion and the second portion.
In an embodiment, the combustible wick is coaxially arranged in a central portion of the combustible heat source, and the combustible wick may have a uniform diameter in a longitudinal direction of the aerosol generating article.
In an embodiment, the combustible wick includes a first region and a second region, the first region and the second region being physically connected to each other, and the first region may have a uniform diameter in the longitudinal direction of the aerosol generating article, and the second region may have a diameter increasing in the longitudinal direction of the aerosol generating article.
In an embodiment, the combustible wick may include magnesium ribbon.
A second aspect of the disclosure may provide an aerosol generating system, in which an aerosol is generated by ignition of the first portion of the aerosol generating article according to the first aspect.
In an embodiment, the combustible wick may include a combustible body soaked with alcohol, a solid fuel, or a metal wire.
In an embodiment, a combustion rate of the combustible wick may be greater than a combustion rate of the combustible heat source.
In an embodiment, the combustible wick may be removed, and an air flow passage may be formed in the combustible heat source.
A third aspect of the inventive concept may provide a composite heat source for the aerosol generating article, including: a combustible heat source; and a combustible wick inserted into the combustible heat source, wherein the combustible wick may provide a composite heat source including a combustible body soaked with alcohol, a solid fuel, or a metal wire.
In an embodiment, when the composite heat source is combusted, a combustion rate of the combustible wick may be greater than a combustion rate of the combustible source.
With respect to the terms used to describe in the various embodiments, the general terms which are currently and widely used are selected in consideration of functions of structural elements in the various embodiments of the present disclosure. However, meanings of the terms can be changed according to intention, a judicial precedence, the appearance of a new technology, and the like. In addition, in certain cases, a term which is not commonly used can be selected. In such a case, the meaning of the term will be described in detail at the corresponding portion in the description of the present disclosure. Therefore, the terms used in the various embodiments of the present disclosure should be defined based on the meanings of the terms and the descriptions provided herein.
In addition, unless explicitly described to the contrary, the word “comprise” and variations such as “comprises” or “comprising” will be understood to imply the inclusion of stated elements but not the exclusion of any other elements. In addition, the terms “-er”, “-or”, and “module” described in the specification mean units for processing at least one function and operation and can be implemented by hardware components or software components and combinations thereof.
Hereinafter, the present disclosure will now be described more fully with reference to the accompanying drawings, in which exemplary embodiments of the present disclosure are shown such that one of ordinary skill in the art may easily work the present disclosure. The disclosure may, however, be embodied in many different forms and should not be construed as being limited to the embodiments set forth herein.
Throughout the specification, “A and/or B” indicates at least any one of A and B.
Throughout the specification, “on-” indicates that a component is on a surface of another component, and also includes cases in which the component contacts the other component or the component is above the other component without contact.
Throughout the specification, “a longitudinal direction of an aerosol generating article” indicates a direction in which a length of the aerosol generating article extends or a direction in which combustion proceeds when the aerosol generating article is combusted.
Hereinafter, embodiments of the disclosure will be described in detail with reference to the accompanying drawings.
According to a first aspect of the disclosure, there is provided the aerosol generating article 100 including a first portion 110 that includes a composite heat source, a second portion 120 that is adjacent to the first portion 110 and includes at least one of an aerosol generating material and a tobacco material, a third portion 130 including a cooling material, and a fourth portion 140 including a filter material. Also, in some embodiments, the aerosol generating article 100 may further include a first wrapper 150 and a second wrapper 160.
Referring to
The first portion 110 may include the composite heat source. As it will be described detail in
The second portion 120 may be adjacent to the first portion 110. For example, the first portion 110 may be at an upstream of the aerosol generating article 100, and compared to the first portion 110, the second portion 120 may be at a downstream of the aerosol generating article 100.
Here, regarding the terms “upstream” and “downstream”, when a user puffs air by using the aerosol generating article, a portion into which the air flows from the outside of the aerosol generating article is “upstream”, and a portion from which the air flows to the outside of the aerosol generating article is “downstream”. The terms “upstream” and “downstream” are used to indicate relative positions or directions of portions or segments included in the aerosol generating article.
The second portion 120 may include at least one of the aerosol generating material and the tobacco material. The tobacco material may include, for example, at least one of shredded pipe tobacco, reconstituted pipe tobacco leaves, tobacco leaves, expanded tobacco, and nicotine extract. The tobacco material may include nicotine. For example, the aerosol generating material may include at least one of glycerin, propylene glycol, ethylene glycol, dipropylene glycol, diethylene glycol, triethylene glycol, tetraethylene glycol, and oleyl alcohol, but it is not limited thereto.
For example, the second portion 120 may include the reconstituted pipe tobacco leaves soaked with glycerin. When the composite heat source of the first portion 110 is ignited, the heat generated from the first portion 110 may be delivered to the second portion 120, and the aerosol may be generated from the reconstituted pipe tobacco leaves soaked with glycerin. However, the disclosure is not necessarily limited to the descriptions.
The third portion 130 may include the cooling material, which cools an air flow that passes through the first portion 110 and the second portion 120. The third portion 130 may include a polymer material or a biodegradable polymer material, configured to cool the aerosol. For example, the third portion 130 may include pure polylactic acid alone, but the material for forming the cooling segment is not limited thereto.
In some embodiments, the third portion 130 may include a cellulose acetate filter having a plurality of holes. However, the third portion 130 is not limited to the above-described example and is not limited as long as the cooling segment cools the aerosol. For example, the third portion 130 may include a tube filter or a base paper filter that includes a hollow.
The fourth portion 140 may include a cellulose acetate filter. Shapes of the fourth portion 140 are not limited. For example, the fourth portion 140 may include a cylinder-type rod or a tube-type rod having a hollow inside. Also, the fourth portion 140 may include a recess-type rod. When the fourth portion 140 includes a plurality of segments, at least one of the plurality of segments may have a different shape.
The fourth portion 140 may be formed to generate flavors. For example, a flavoring liquid may be injected onto the fourth portion 140, or an additional fiber coated with a flavoring liquid may be inserted into the fourth portion 140.
In embodiments, the first portion 110 may have a length from about 8 mm to about 12 mm, and the second portion 120 may have a length from about 10 mm to about 14 mm. However, the disclosure is not necessarily limited to the descriptions.
The aerosol generating article 100 may further include at least one of the first wrapper 150 and the second wrapper 160.
The first wrapper 150 may surround the first portion 110 and the second portion 120. The first wrapper 150 may include, for example, a heat-conductive wrapper. Desirably, the first wrapper 150 may include an aluminum thin film. When the first portion 110 is ignited and combusted, the heat generated from the first portion 110 may be directly delivered to the second portion 120, and the heat generated from the first portion 110 may also be delivered to the second portion 120 through the first wrapper 150. The first wrapper 150 may have, for example, a heat conductivity from about 50 W·m−1/K−1 to about 500 W·m−1/K−1.
The second wrapper 160 may surround the first portion 110, the second portion 120, the third portion 130, and the fourth portion 140. The second wrapper 160 may include, for example, a sheet of cellulose paper. However, the disclosure is not necessarily limited thereto.
In addition, the aerosol generating article 100 may further include a barrier (not shown) arranged between the first portion 110 and the second portion 120. The barrier may reduce transfer of harmful gas, which is generated from the first portion 110, to the second portion 120, the third portion 130, or the fourth portion 140. The barrier may include, for example, a metal material. Accordingly, the user may puff required components alone in the form of aerosol.
In embodiments, the composite heat source 200 may have a cylinder shape. However, the shape of the composite heat source 200 is not necessarily limited to the descriptions, and the disclosure may include all of well-known shapes in the field.
The composite heat source 200 may include a combustible heat source 210 and a combustible wick 220.
The combustible heat source 210 may include, for example, a heat source including carbon.
The combustible wick 220 may include a combustible body soaked with alcohol, a solid fuel, or a metal wire. The combustible body soaked with alcohol may include, for example, yarn, thread, paper, woodstick, or the like soaked with ethanol. The solid fuel may include, for example, an ignition support material such as solid methyl alcohol. The metal wire may include, for example, a magnesium ribbon. The combustible wick 220 may have a combustion rate that is greater than that of the combustible heat source 210. In addition, the combustible wick 220 may support ignition or combustion of the combustible heat source 210. The combustible wick 220 may be removed during combustion.
The combustible wick 220 may be inserted into a center portion of the combustible heat source 210. To allow the combustible wick 220 to be inserted into the center portion of the combustible heat source 210, a passage extending in a longitudinal direction of the aerosol generating article may be formed in the center portion of the combustible heat source 210. The combustible wick 220 may be coaxially arranged in the center portion of the combustible heat source 210.
The combustible wick 220 may have a diameter d1. For example, the diameter d1 of the combustible wick 220 may be from about 1/10 to about ½ of the diameter of the composite heat source 200. By adjusting the diameter d1 of the combustible wick 220, a weight of the solid fuel or the metal wire included in the composite heat source may be adjusted.
Referring to
The descriptions of
The composite heat source 300 may include a combustible heat source 310 and the combustible wick 320. The combustible wick 320 may be inserted into a center portion of the combustible heat source 310.
In the embodiment shown in
The first region S1 may have a diameter d2, which is uniform, in the longitudinal direction of the aerosol generating article. On the contrary, the second region S2 may have a diameter d3 increasing in the longitudinal direction of the aerosol generating article. Accordingly, the diameter d3 may be equal to or greater than the diameter d2.
As the diameter d3 of the second region S2 is equal to or greater than the diameter d2, the composite heat source 300 according to the embodiment in
In addition, when the composite heat source 300 is ignited and combusted, a combustion rate of the combustible wick 320 may be greater than a combustion rate of the combustible heat source 310. In addition, the combustible wick 320 may be ignited, combusted, and removed. In the embodiment of
Referring to
For example, the composite heat source 400 in
The composite heat source 400 may include a combustible heat source 410 and a combustible wick 420. After the composite heat source 400 is ignited and combusted to a certain degree, the combustible heat source 410 and the combustible wick 420 may be partially or entirely combusted and removed. As a combustion rate of the combustible wick 420 is greater than a combustion rate of the combustible heat source 410, it may be seen that a combustion portion in a center portion of the combustible heat source 410 is formed in a greater depth compared to other portions.
In detail, the composite heat source 400 may be divided into a region 411 in which a combustible heat source is combusted, a region 413 in which the combustible heat source is not combusted, a region 430 in which the combustible heat source is overheated, a region 421 in which the combustible wick is combusted, and a region 423 in which the combustible wick is not combusted.
As the external air is introduced into the region 421 in which the combustible wick is combusted, a surface area of the combustible heat source 410 contacting the external air increases, and accordingly, combustion of the combustible heat source 410 may be promoted.
For example, the composite heat source 500 in
However, when the composite heat source 500 is combusted to a certain degree, the combustible wick may be completely combusted, and an air flow passage 520 may be formed. Accordingly, the composite heat source 500 may include a combustible heat source 510 and the air flow passage 520.
In the embodiment, as the air flow passage 520 is formed, a surface area of the combustible heat source 510 contacting the external air increases, and thus, combustion of the combustible heat source 510 may be promoted. In addition, when a user puffs aerosol through a fourth portion (not shown), the external air may be more easily introduced into the aerosol generating article.
A second aspect of the disclosure may provide an aerosol generating system, in which a first portion of the aerosol generating article according to the first aspect is ignited and aerosol is generated.
The descriptions of the first aspect may be equally applied to the second aspect of the disclosure.
In addition, a third aspect of the disclosure may provide a composite heat source for the aerosol generating article, the composite heat source including a combustible heat source and a combustible wick inserted into the combustible heat source, wherein the combustible wick includes a combustible body soaked with alcohol, a solid fuel, or a metal wire.
The descriptions of the first aspect and the second aspect may be equally applied to the third aspect of the disclosure.
The descriptions of the above-described embodiments are merely examples, and it will be understood by one of ordinary skill in the art that various changes and equivalents thereof may be made. Therefore, the scope of the disclosure should be defined by the appended claims, and all differences within the scope equivalent to those described in the claims will be construed as being included in the scope of protection defined by the claims.
| Number | Date | Country | Kind |
|---|---|---|---|
| 10-2020-0019083 | Feb 2020 | KR | national |
| Filing Document | Filing Date | Country | Kind |
|---|---|---|---|
| PCT/KR2021/000112 | 1/6/2021 | WO |
| Publishing Document | Publishing Date | Country | Kind |
|---|---|---|---|
| WO2021/167240 | 8/26/2021 | WO | A |
| Number | Name | Date | Kind |
|---|---|---|---|
| 5240012 | Ehrman et al. | Aug 1993 | A |
| 5443560 | Deevi et al. | Aug 1995 | A |
| 6598607 | Adiga et al. | Jul 2003 | B2 |
| 8430106 | Potter et al. | Apr 2013 | B2 |
| 9629393 | Stolz et al. | Apr 2017 | B2 |
| 10375989 | Borges De Couraca et al. | Aug 2019 | B2 |
| 10729169 | Malgat | Aug 2020 | B2 |
| 11213064 | Roudier et al. | Jan 2022 | B2 |
| 20150007837 | Roudier et al. | Jan 2015 | A1 |
| 20160331028 | Xu | Nov 2016 | A1 |
| 20170238607 | Nordskog | Aug 2017 | A1 |
| 20170318859 | Batista | Nov 2017 | A1 |
| 20180279672 | Davis | Oct 2018 | A1 |
| 20190014820 | Malgat | Jan 2019 | A1 |
| 20190029315 | Malgat | Jan 2019 | A1 |
| 20190075845 | Malgat et al. | Mar 2019 | A1 |
| 20210068469 | Ademe | Mar 2021 | A1 |
| Number | Date | Country |
|---|---|---|
| 104203013 | Dec 2014 | CN |
| 104486957 | Apr 2015 | CN |
| 107105760 | Aug 2017 | CN |
| 107920596 | Apr 2018 | CN |
| 108366618 | Aug 2018 | CN |
| 0 354 661 | Feb 1990 | EP |
| 2004-208678 | Jul 2004 | JP |
| 2015-507934 | Mar 2015 | JP |
| 2018-531594 | Nov 2018 | JP |
| 10-0161278 | Aug 1998 | KR |
| 10-2009-0046820 | May 2009 | KR |
| 20100108565 | Oct 2010 | KR |
| 10-2014-0093659 | Jul 2014 | KR |
| 20140093659 | Jul 2014 | KR |
| 10-2014-0130130 | Nov 2014 | KR |
| 10-2017-0020342 | Feb 2017 | KR |
| 10-2018-0093030 | Aug 2018 | KR |
| 10-2018-0118767 | Oct 2018 | KR |
| 10-2018-0122365 | Nov 2018 | KR |
| WO-2013124357 | Aug 2013 | WO |
| 2016156424 | Oct 2016 | WO |
| 2017207585 | Dec 2017 | WO |
| Entry |
|---|
| English language machine translation of KR20140093659A, 2014. |
| English language machine translation of KR20100108565A, 2010. |
| English language machine translation of CN104486957A, 2015. |
| Extended European Search Report issued Jan. 31, 2022 in European Application No. 21735837.3. |
| International Search Report of PCT/KR2021/000112 dated Apr. 9, 2021 [PCT/ISA/210]. |
| Written Opinion of PCT/KR2021/000112 dated Apr. 9, 2021 [PCT/ISA/237]. |
| Japanese Office Action dated Oct. 4, 2022 in Japanese Application No. 2021-539563. |
| Office Action dated Apr. 7, 2022, issued in Korean Application No. 10-2020-0019083. |
| Office Action issued Apr. 11, 2023 in Chinese Application No. 202180001803.7. |
| Number | Date | Country | |
|---|---|---|---|
| 20220322736 A1 | Oct 2022 | US |
