KR102343349B1 - Aerosol generating article including at least one perforation - Google Patents

Abstract

According to one embodiment, the aerosol-generating substrate portion, a first channel-type airflow transfer element located downstream of the aerosol-generating substrate portion in abutting the aerosol-generating substrate portion, and a first channel-type airflow transfer element abutting the first channel-type airflow transfer element a second channel-type airflow-conducting element located downstream of the element, an end filter and aerosol-generating substrate portion positioned downstream of the second channel-type airflow-conducting element abutting the second channel-type airflow transmitting element, a first channel-type airflow transfer element a packaging material surrounding the element, the second channel-type airflow-transmitting element and the end filter, wherein the second channel-type airflow-transmitting element has an inner diameter greater than the first channel-type airflow transfer element and at least one perforation of the end filter in the packaging material. An aerosol-generating article is disclosed which is formed at at least one location spaced 12 mm to 24 mm in an upstream direction from a downstream end.

Description

Aerosol generating article including at least one perforation

One or more embodiments relate to an aerosol-generating article, and more particularly to an aerosol-generating article comprising at least one perforation for a cooling effect.

In recent years there has been an increasing demand for alternative methods that overcome the shortcomings of common aerosol-generating articles. For example, there is a growing need for a method of generating an aerosol by heating an aerosol-generating substrate portion within an aerosol-generating article rather than a method of generating the aerosol by burning the aerosol-generating article. Accordingly, research into a heated aerosol-generating article or a heated aerosol-generating device is being actively conducted.

A combustible aerosol-generating article or a non-combustible (heated) aerosol-generating article comprises a filter for filtering certain components contained in the aerosol or for cooling the aerosol. Recently, by changing the components constituting the filter or by changing the structure of the filter, research for improving the performance of the filter is in progress.

Cigarettes used in conjunction with non-combustible (heated) aerosol-generating devices in the prior art comprise a filter with a hollow airflow cooling element for cooling the mainstream smoke generated in the cigarette. A filter having a hollow airflow cooling element can cool mainstream smoke to an appropriate temperature that a user can inhale by using the structure and material properties of the hollow airflow cooling element.

However, the hollow airflow cooling element provided in the conventional cigarette filter needs to be manufactured in a specific shape and structure to increase the cooling effect, and accordingly, the manufacturing process of the filter having the hollow airflow cooling element may be complicated. , the manufacturing cost may increase. Accordingly, there is a need for a technique for simplifying the manufacturing process of the filter and reducing the manufacturing cost while maintaining the cooling effect of a conventional cigarette filter.

KR 10-2014-0119063 A

One or more embodiments provide an aerosol-generating article comprising at least one perforation. The technical problem to be achieved by this embodiment is not limited to the technical problems as described above, and other technical problems may be inferred from the following embodiments.

As a technical means for achieving the above-described technical problem, an aerosol-generating article according to an embodiment includes an aerosol-generating substrate; a first channel-type airflow transfer element abutting the aerosol-generating substrate and positioned downstream of the aerosol-generating substrate; a second channel-type airflow-transmitting element abutting the first channel-type airflow-transmitting element and positioned downstream of the first channel-type airflow-transmitting element; an end filter abutting the second channel-type airflow-transmitting element and positioned downstream of the second channel-type airflow-transmitting element; and a packaging material surrounding the aerosol-generating substrate portion, the first channel-type airflow transfer element, the second channel-type airflow transfer element, and the end filter, wherein the second channel-type airflow transfer element comprises the first channel-type airflow element. Having an inner diameter greater than the transmission element, at least one perforation is formed in the packaging at at least one location spaced 12 mm to 24 mm upstream from the downstream end of the end filter.

When the user smokes the aerosol-generating article, mainstream smoke generated from the aerosol-generating substrate portion and passing through the first channel-type airflow transfer element and the second channel-type airflow transfer element is externally introduced through the at least one perforation. It can be cooled by mixing with air.

When smoking the aerosol-generating article, the outer surface of at least one of the first channel-type airflow transfer element, the second channel-type airflow transfer element, and the end filter may be cooled by external air introduced through the at least one perforation. have.

The at least one perforation of the aerosol-generating article may have 4 to 10 holes formed along the outer circumferential surface of the packaging material.

The length of the aerosol-generating substrate part is 11 mm to 13 mm, the length of the first channel-type airflow transfer element is 9 mm to 11 mm, the length of the second channel-type airflow transfer element is 13 mm to 15 mm, and the length of the end filter is 11 mm to 13 mm, and the at least one perforation may be formed in at least one position corresponding to a portion surrounding the second channel-type airflow transmission element in the packaging material.

The at least one perforation may be formed at a position spaced apart from the downstream end of the end filter by 15 mm to 22 mm in the upstream direction in the packaging material.

The aerosol-generating article may further include a porous wrapper between the packaging material and at least one of the first channel-type airflow transfer element and the second channel-type airflow transfer element.

The inner diameter of the first channel-type airflow transmission element may be 2.0 mm to 4.5 mm, and the inner diameter of the second channel-type airflow transmission element may be 3.0 mm to 5.5 mm.

The inner diameter of the first channel-type airflow transfer element may be 3.4 mm, and the inner diameter of the second channel-type airflow transfer element may be 4.0 mm.

An outer surface of at least one of the first channel-type airflow transfer element and the second channel-type airflow transfer element may include at least one interior perforation.

An aerosol-generating article according to embodiments comprises an aerosol-generating substrate portion, a first channel-type airflow transfer element, a second channel-type airflow transfer element, an end filter and an aerosol-generating substrate portion, a first channel-type airflow transfer element, a second channel type A packaging material surrounding the airflow transfer element and the end filter may be provided. As the perforations are located in the packaging material, outside air can flow from the outside through the perforations into the interior of the aerosol-generating article. The outside air flowing into the interior of the aerosol-generating article may mix with mainstream smoke.

The temperature of the outside air may be lower than the temperature of the mainstream smoke flowing inside the aerosol-generating article, which may result in a cooling effect of the mainstream smoke inside the aerosol-generating article. Also, since the inner diameters of the first channel-type airflow-transmitting element and the second channel-type airflow-transmitting element are different from each other, the mainstream smoke flowing in the cavities of the first-channel-type airflow-transmitting element and the second channel-type airflow-transmitting element can be diffused. .

As the deflection of the diffused mainstream smoke in the downstream direction of the aerosol-generating article is reduced, the contact area and contact time between the diffused mainstream smoke and the outside air flowing into the interior of the second channel-shaped airflow transfer element may be increased. Accordingly, the cooling effect of the mainstream smoke may be improved.

In addition, since the shape of the cooling structure for the cooling effect can be simplified, the manufacturing process of the aerosol-generating article can be simplified, and the manufacturing cost of the aerosol-generating article can be reduced.

1 is a central axial cross-sectional view of an aerosol-generating article according to an embodiment.
2 is a perspective view of an aerosol-generating article according to an embodiment;
3 is a cross-sectional view in the central axis direction of the aerosol-generating article showing the flow of mainstream smoke and external air in the aerosol-generating article according to an embodiment;
4 is a axial cross-sectional view of an aerosol-generating article according to another embodiment.
5 is a axial cross-sectional view of an aerosol-generating article according to another embodiment.

Hereinafter, exemplary embodiments will be described in detail with reference to the accompanying drawings. It goes without saying that the following description is only for specifying the embodiments and does not limit or limit the scope of the invention. What can be easily inferred by an expert in the art from the detailed description and examples is construed as belonging to the scope of the right.

As used herein, terms such as 'comprising' or 'comprising' should not be construed as necessarily including all of the various components or various steps described in the specification, and some components or some steps thereof. It should be construed that they may not be included, or may further include additional components or steps.

Also, terms including ordinal numbers such as 'first' or 'second' used in this specification may be used to describe various elements, but the elements should not be limited by the terms. The above terms are used only for the purpose of distinguishing one component from another.

The terms used in this specification are selected as currently widely used general terms as possible while considering the functions in the embodiments, but may vary depending on the intention or precedent of a person skilled in the art, the emergence of new technology, and the like. In addition, in a specific case, there is a term arbitrarily selected by the applicant, and in this case, the meaning will be described in detail in the description of the corresponding invention. Therefore, the terms used in the embodiment should be defined based on the meaning of the term and the overall content of the embodiment, rather than the simple name of the term.

Throughout the specification, an 'aerosol-generating article' may mean a substance capable of generating an aerosol, such as cigarettes (cigarettes), cigars, and the like. The aerosol-generating article may comprise an aerosol-generating material or an aerosol-forming substrate. In addition, the aerosol-generating article may comprise solid materials based on tobacco raw materials, such as leaf tobacco, cut filler, reconstituted tobacco, and the like. Aerosols may contain volatile compounds.

In addition, throughout the specification, 'upstream' or 'upstream direction' refers to a direction away from the user's bend in smoking the aerosol-generating article 100, and 'downstream' or 'downstream direction' refers to the direction in which the aerosol-generating article 100 is smoked. It refers to a direction that is closer to the user's mouth. For example, in the aerosol-generating article 100 shown in FIG. 1 , the aerosol-generating substrate portion 10 is positioned upstream or upstream of the first channel-shaped airflow transfer element 20 .

1 is a central axial cross-sectional view of an aerosol-generating article 100 according to an embodiment.

The aerosol-generating article 100 according to the embodiment comprises an aerosol-generating substrate portion 10 , a first channel-type airflow transfer element 20 that abuts the aerosol-generating substrate portion 10 and is positioned downstream of the aerosol-generating substrate portion 10 . . ) abutting the end filter 40 and the aerosol-generating substrate portion 10 positioned downstream of the second channel-type air-flow transfer element 30 , the first channel-type air-flow transfer element 20 , and the second channel-type air-flow transfer element A wrapper 50 may be provided to wrap the element 30 and the end filter 40 .

The aerosol-generating substrate part 10 means a part that contains an aerosol-generating material therein, is inserted into the aerosol-generating device, and is heated to generate mainstream smoke.

For example, the aerosol-generating material may comprise at least one of glycerin, propylene glycol, ethylene glycol, dipropylene glycol, diethylene glycol, triethylene glycol, tetraethylene glycol and oleyl alcohol.

The aerosol-generating substrate portion 10 may have an elongated cylindrical shape, and the length thereof may vary, but may be about 7 to 15 mm, for example, 12 mm.

The diameter of the aerosol-generating substrate portion 10 may be 7 to 9 mm, for example, about 7.9 mm.

The aerosol-generating matrix portion 10 may contain flavoring agents, wetting agents and/or other additive substances such as acetate compounds. For example, flavoring agents include licorice, sucrose, fructose syrup, isosweet, cocoa, lavender, cinnamon, cardamom, celery, fenugreek, cascarilla, sandalwood, bergamot, geranium, honey essence, rose oil, vanilla, lemon oil, orange oil, mint oil, cinnamon, caraway, cognac, jasmine, chamomile, menthol, cinnamon, ylang-ylang, sage, spearmint, ginger, coriander or coffee and the like. In addition, the wetting agent may include glycerin or propylene glycol, and the like.

The aerosol-generating substrate unit 10 grinds the tobacco raw material, mixes a solvent and various additives to form a slurry, then dries it to form a sheet, and then processes the sheet to obtain a reconstituted tobacco material having pieces such as rods. may include

For example, the aerosol-generating substrate portion 10 may include a plurality of strands of tobacco material, one strand being 10-14 mm in length (eg, 12 mm) and 0.8-1.2 mm in width (eg, 1 mm) and a thickness of 0.08 mm to 0.12 mm (eg, 0.1 mm).

Aerosol generation can be increased as the density of the tobacco material filled in the aerosol-generating substrate part 10 is increased by making the aerosol-generating substrate part 10 to include a plurality of strands of material processed into a wide tobacco sheet shape, and the aerosol generation can be increased. The manufacturing characteristics of the developing matrix part 10 may be improved.

The aerosol-generating substrate portion 10 may include a wrapper surrounding the aerosol-generating substrate portion 10 .

The aerosol-generating article 100 may include a first channel-shaped airflow transfer element 20 , the first channel-shaped airflow transfer element 20 abuts the aerosol-generating substrate portion 10 and the aerosol-generating substrate portion 10 . ) can be located downstream of

The diameter of the first channel-shaped airflow transfer element 20 may be between 7 mm and 9 mm, for example about 7.9 mm.

The first channel-type airflow transmission element 20 may have a tube shape including a hollow therein. In this case, the shape of the cross section of the hollow may be a polygon or a circle, but the size and shape of the hollow are not limited thereto.

The length of the first channel-type airflow transfer element 20 may be between about 9 mm and 11 mm, for example about 10 mm. The inner diameter of the first channel-type airflow transfer element 20 may be about 2.0 mm to 4.5 mm, for example 3.4 mm.

The first channel-type airflow transfer element 20 may include a material through which external gas can be introduced into the hollow of the first channel-type airflow transfer element 20 from the outside, and the material may be a mixture of a plurality of materials. have. The material may be, for example, cellulose acetate tow.

The aerosol-generating article 100 may include a second channel-type airflow-transmitting element 30 , the second channel-shaped airflow-transmitting element 30 abutting the first channel-shaped airflow-transmitting element 20 and having a first channel It may be located downstream of the mold airflow transfer element 20 .

The diameter of the second channel-type airflow transfer element 30 may be between 7 mm and 9 mm, for example about 7.9 mm. The second channel-type airflow transmission element 30 may have a tube shape including a hollow therein. In this case, the shape of the cross section of the hollow may be a polygon or a circle, but the size and shape of the hollow are not limited thereto.

The length of the second channel-shaped airflow transfer element 30 may be between about 13 mm and 15 mm, for example about 14 mm. The inner diameter of the second channel-type airflow transmitting element 30 may be about 3.0 mm to 5.5 mm, for example 4.0 mm. In this case, the inner diameter of the second channel-type airflow transfer element 30 may be greater than the inner diameter of the first channel-type airflow transfer element 20 .

Since the inner diameters of the first channel-type airflow transfer element 20 and the second channel-type airflow transfer element 30 are different from each other, the first channel-type airflow transfer element 20 and the second channel-type airflow transfer element 30 are Mainstream smoke flowing within the cavity may be diffused. As the deflection of the diffused mainstream smoke in the downstream direction of the aerosol-generating article 100 decreases, the contact area and time with the outside air flowing into the interior of the second channel-shaped airflow transfer element 30 increases. Accordingly, the cooling effect of the mainstream smoke may be improved.

The cooling process of the mainstream smoke due to the flow of outside air into the aerosol-generating article 100 will be described in detail below with reference to FIG. 3 .

The second channel-type airflow transfer element 30 may include a material through which external gas can be introduced into the hollow of the second channel-type airflow transfer element 30 from the outside, and the material may be a mixture of a plurality of materials. have. The material may be, for example, cellulose acetate tow.

The aerosol-generating article 100 may include an end filter 40 , which abuts the second channel-type airflow transfer element 30 and is downstream of the second channel-type airflow transfer element 30 . can be located

The end filter 40 may be a region through which the mainstream smoke generated by the aerosol-generating substrate 10 passes immediately before inhalation by the user. The length of the end filter 40 may be about 11 mm to 13 mm, for example about 12 mm. The end filter 40 may be formed of various materials, and may include, for example, cellulose acetate.

The end filter 40 may have a cylindrical shape. In another embodiment, the end filter 40 may be in the form of a tube with a hollow therein. The shape of the cross-section may be a polygon or a circle, but the size and shape of the hollow are not limited thereto.

According to one embodiment, the aerosol-generating article 100 is at least one of a first channel-type airflow transfer element 20 , a second channel-type airflow transfer element 30 and an end filter 40 of the aerosol-generating article 100 . may contain capsules.

For example, the end filter 40 may include a capsule (not shown). The capsule (not shown) provided in the end filter 40 may have a structure in which the liquid containing the fragrance is wrapped with a film, for example, may have a spherical or cylindrical shape.

In addition, the material for forming the film of the capsule (not shown) provided in the end filter 40 may be starch and/or a gelling agent. For example, gellan gum or gelatin may be used as the gelling agent. In addition, a gelling aid may be further used as a material for forming the film of the capsule (not shown). Here, as the gelling aid, for example, calcium chloride can be used. In addition, a plasticizer may be further used as a material for forming the film of the capsule (not shown). Here, as the plasticizer, glycerin and/or sorbitol may be used. In addition, a colorant may be further used as a material for forming the film of the capsule (not shown).

For example, menthol, essential oil of plants, etc. may be used as a fragrance included in the liquid content of the capsule (not shown). In addition, as a solvent of the fragrance contained in the internal solution, for example, medium-chain fatty acid triglyceride (MCT) may be used. In addition, the internal solution may contain other additives such as a colorant, an emulsifier, and a thickener.

The aerosol-generating article 100 includes a packaging material 50 surrounding the aerosol-generating substrate portion 10 , a first channel airflow transfer element 20 , a second channel airflow transfer element 30 , and an end filter 40 . In this case, the inner surface of the packaging material 50 faces the outer surfaces of the aerosol-generating substrate portion 10 , the first channel-type airflow transfer element 20 , the second channel-type airflow transfer element 30 , and the end filter 40 . do.

The packaging material 50 shown in FIGS. 1 to 5 includes the aerosol-generating substrate portion 10 , the first channel-type airflow transfer element 20 , the second channel-type airflow transfer element 30 , and the outer surface of the end filter 40 . Although it is shown spaced apart from each other, it is only for convenience of description, and the packaging material 50 and the aerosol-generating substrate part 10, the first channel-type airflow transfer element 20, the second channel-type airflow transfer element 30 and The outer surfaces of the end filter 40 may contact each other to form a contact surface.

The length of the packaging material 50 may be about 44 mm to 52 mm, for example, about 48 mm. The length of the packaging material 50 may vary depending on the length of each of the aerosol-generating substrate portion 10 , the first channel-type airflow transfer element 20 , the second channel-type airflow transfer element 30 , and the end filter 40 . . The packaging material 50 may be formed of various materials, for example, may include cellulose pulp fibers.

At least one perforation 55 may be formed in the packaging material 50 . In this case, the at least one perforation 55 may be formed at a position spaced apart from the downstream end of the end filter 40 by 12 mm to 24 mm, preferably from 15 mm to 22 mm in the upstream direction. For example, the at least one perforation 55 may be formed in at least one of about 15 mm, 20 mm, and 22 mm spaced apart from the downstream end of the end filter 40 in the upstream direction.

The at least one perforation 55 may have 4 to 10 holes, for example 4, 6 or 8 holes. An example of the at least one perforation 55 formed in the packaging material 50 of the aerosol-generating article 100 will be described in detail below with reference to FIG. 2 .

2 is a perspective view of an aerosol-generating article 100 according to one embodiment.

As an example, referring to FIG. 2 , at least one perforation 55 is spaced about 22 mm upstream from the downstream end of the end filter 40 in the packaging material 50 to allow the second channel-type airflow transfer element 30 to pass through. An example formed in a position corresponding to the wrapping portion is shown. As shown in FIG. 2 , the at least one perforation 55 may have four holes. However, the present invention is not limited thereto. The at least one perforation 55 may be formed at at least one location spaced apart from the downstream end of the end filter 40 by about 12 mm to 24 mm in the upstream direction in the packaging material 50 . The at least one perforation 55 may have 4 to 10 holes, for example 4, 6 or 8 holes.

Holes may be formed along the outer circumferential surface of the packaging material 50, and the holes may be formed to be spaced apart from each other at regular intervals along the outer circumferential surface. The diameter of the hole may be 0.02 mm to 0.08 mm, for example, 0.05 mm.

External air may be introduced into the packaging material 50 through the at least one perforation 55 . At this time, the external air introduced through the at least one perforation 55 is coupled to the outer surface of at least one of the first channel-type airflow transfer element 20 , the second channel-type airflow transfer element 30 , and the end filter 40 . can be contacted

The temperature of the external air introduced through the at least one perforation 55 is the temperature of the outer surface of at least one of the first channel-type airflow transfer element 20 , the second channel-type airflow transfer element 30 , and the end filter 40 . may be lower. Accordingly, the outside air may cool the outer surface of at least one of the first channel-type airflow transmission element 20 , the second channel-type airflow transmission element 30 , and the end filter 40 .

3 is a central axial cross-sectional view of the aerosol-generating article 100 showing the flow of mainstream smoke and outside air in the aerosol-generating article 100 according to an embodiment.

When the user smokes the aerosol-generating article 100 , the aerosol-generating substrate portion 10 may be heated to generate mainstream smoke from the aerosol-generating substrate portion 10 . Mainstream smoke may flow in a downstream direction of the aerosol-generating article 100 by the inhalation action of a user.

The generated mainstream smoke may flow within the aerosol-generating substrate portion 10 of the aerosol-generating substrate portion 10 toward a downstream direction of the aerosol-generating matrix portion 10 .

The mainstream smoke may then flow towards the cavity of the first channel-shaped airflow transfer element 20 at the downstream end of the aerosol-generating substrate portion 10 .

Mainstream smoke flowing into the cavity of the first channel-type airflow transfer element 20 may flow within the first channel-type airflow transfer element 20 in a direction downstream of the first channel-type airflow transfer element 20 .

External air may flow into the packaging material 50 through the at least one perforation 55 . Some of the outside air flowing into the packaging material 50 may flow into the first channel-type airflow transfer element 20 .

Outside air flowing into the first channel-type airflow transfer element 20 and mainstream smoke flowing inside the first channel-type airflow transfer element 20 may be mixed inside the first channel-type airflow transfer element 20 . .

The temperature of the outside air flowing into the first channel-type airflow transfer element 20 may be lower than the temperature of the mainstream smoke flowing inside the first channel-type airflow transfer element 20, thereby causing the first channel-type airflow transfer element 20 20), the cooling effect of mainstream smoke may occur inside.

The mainstream smoke may then flow at the downstream end of the cavity of the first channel-shaped airflow-transmitting element 20 towards the cavity of the second channel-shaped airflow-transmitting element 30 .

The inner diameter of the second channel-type airflow transfer element 30 of the aerosol-generating article 100 according to one embodiment may be greater than the inner diameter of the first channel-type airflow transfer element 20 . Therefore, since the size of the inner diameter of the first channel-type airflow transfer element 20 and the size of the inner diameter of the second channel-type airflow transfer element 30 are different, the mainstream smoke that has passed through the cavity of the first channel-type airflow transfer element 20 is flow can be changed.

Mainstream smoke flowing into the cavity of the second channel-shaped airflow-conducting element 30 may diffuse at an upstream end portion of the cavity of the second channel-shaped airflow-transmitting element 30 . At least a portion of the mainstream smoke may flow toward the inner surface of the second channel-type airflow transfer element 30 .

As the deflection of the diffused mainstream smoke in the downstream direction of the aerosol-generating article 100 is reduced, the contact area and contact time between the diffused mainstream smoke and the outside air flowing into the interior of the second channel-shaped airflow transfer element 30 will be increased. can Accordingly, the cooling effect of the mainstream smoke may be improved.

At this time, external air may flow into the packaging material 50 through the at least one perforation 55 . Some of the outside air flowing into the packaging material 50 may flow into the second channel-type airflow transfer element 30 .

A downstream direction among the directions in which the central axis of the second channel-type airflow-transmitting element 30 faces within the cavity of the second channel-type airflow-transmitting element 30 and the outside air that has flowed into the second channel-type airflow-transmitting element 30 . The mainstream smoke flowing toward it may be mixed inside the second channel type airflow transfer element 30 .

The temperature of the outside air flowing into the second channel-type airflow transfer element 30 may be lower than the temperature of the mainstream smoke flowing inside the second channel-type airflow transfer element 30, thereby causing the second channel-type airflow transfer element 30 30), the cooling effect of mainstream smoke may occur inside.

The mainstream smoke may then flow to the end filter 40 at the downstream end of the cavity of the second channel-shaped airflow transfer element 30 .

At this time, external air may flow into the packaging material 50 through the at least one perforation 55 . Some of the outside air flowing into the packaging material 50 may flow into the end filter 40 .

Outside air flowing into the end filter 40 and mainstream smoke flowing inside the end filter 40 may be mixed inside the end filter 40 .

The temperature of the outside air flowing into the end filter 40 may be lower than the temperature of the mainstream smoke flowing inside the end filter 40 , thereby causing a cooling effect of the mainstream smoke inside the end filter 40 .

Another portion of the outside air flowing into the packaging material (50) contacts the outer surface of at least one of the first channel-type airflow-transmitting element (20), the second channel-type airflow-transmitting element (30) and the end filter (40). The outer surface of at least one of the first channel-type airflow transfer element 20 , the second channel-type airflow transfer element 30 , and the end filter 40 may be cooled by external air.

Mainstream smoke may be sucked into the user's mouth through the end filter 40 .

Due to the cooling effect described above, the user can inhale the aerosol cooled to an appropriate temperature.

4 is a central axial cross-sectional view of an aerosol-generating article 100 according to another embodiment.

Referring to FIG. 4 , the aerosol-generating article 100 includes an aerosol-generating substrate portion 10, and a first channel-type airflow transfer element ( 20), a second channel-type airflow-transmitting element 30 and a second channel-type airflow-transmitting element abutting the first channel-shaped airflow-transmitting element 20 and positioned downstream of the first channel-shaped airflow-transmitting element 20 ( An end filter 40 and a first channel airflow transfer element 20, a second channel airflow transfer element 30 and an end filter positioned downstream of the second channel type airflow transfer element 30 abutting 30) A packaging material 50 surrounding the 40 may be provided.

The aerosol-generating article 100 may further include a porous wrapper 60 between the packaging material 50 and at least one of the first channel-type airflow transfer element 20 and the second channel-type airflow transfer element 30 . In FIG. 4 , the porous wrapper 60 is illustrated as being provided between the second channel-type airflow transfer element 20 and the packaging material 50 , but the porous wrapper 60 includes the first channel-type airflow transfer element 20 and It may be provided between the packaging material 50 , and may be provided both between the first channel-type airflow transmission element 20 and the packaging material 50 and between the second channel-type airflow transmission element 20 and the packaging material 50 . . The position of the porous wrapper 60 is not limited to the previous example.

Of the aerosol-generating article 100 according to another embodiment shown in FIG. 4 , the configuration and effects other than the configuration of the porous wrapper 60 are the aerosol-generating article 100 according to an embodiment of the present invention shown in FIG. 1 . Since it is the same as, detailed description in the overlapping range will be omitted.

The porous wrapper 60 is positioned between the packaging material 50 and at least one of the first channel-type airflow transfer element 20 and the second channel-type airflow transfer element 30 to form the first channel-type airflow transfer element 20 . And it may be formed to surround at least one of the second channel-type airflow transmission element (30).

When the user smokes the aerosol-generating article 100 , external air may flow into the packaging material 50 through the at least one perforation 55 . The porosity of the porous wrapper 60 may be higher than that of the packaging material 50 . Part of the external air introduced through the at least one perforation 55 of the packaging material 50 may pass through the porous wrapper 60 .

Part of the external air flowing into the packaging material 50 passes through the porous wrapper 60 to flow into at least one of the first channel-type airflow transfer element 20 and the second channel-type airflow transfer element 30 . have.

The cooling effect that may occur inside at least one of the first channel-type airflow transfer element 20 and the second channel-type airflow transfer element 30 is the same as described above.

Another part of the outside air flowing into the packaging material 50 passes through the porous wrapper 60 to at least one of the first channel-type airflow transfer element 20 , the second channel-type airflow transfer element 30 , and the end filter 40 . It comes into contact with one outer surface.

The outer surface of at least one of the first channel-type airflow transfer element 20 , the second channel-type airflow transfer element 30 , and the end filter 40 may be cooled by the outside air. Outside air may be trapped in the porous wrapper 60 , thereby more effectively cooling the outer surface of at least one of the first channel-type airflow transfer element 20 , the second channel-type airflow transfer element 30 , and the end filter 40 . can do it

The first channel-type airflow-transmitting element 20 and the second channel-type airflow transfer because the porous wrapper 60 surrounds at least one of the first channel-type airflow-transmitting element 20 and the second channel-type airflow-transmitting element 30 . At least one of the elements 30 can stably hold its shape. In addition, the components wrapped by the porous wrapper 60 may be stably coupled.

Table 1 below is a graph comparing an aerosol-generating article 100 having a porous wrapper 60 having a porosity of 24000 cu for some embodiments with a conventional cigarette having a filter including a hollow airflow cooling element. In the open perforation embodiment, at least one perforation 55 is formed at a location 15 mm or 22 mm apart from the end filter 40 . In addition, a case in which at least one perforation 55 is closed in order to examine the effect of at least one perforation 55 was also included as a comparison target.

conventional cigarettes Example with closed perforations Example with open perforations 15mm position 22mm position 4 holes 6 holes 8 holes 4 holes 6 holes 8 holes Temperature of downstream end of end filter (40) (°C) 66.6 73.1 71.1 67.0 63.1 69.2 63.8 60.5 Temperature (°C) of mainstream smoke passing through the end filter (40) 52.0 50.6 49.8 54.0 54.1 50.3 49.4 53.6 Temperature (°C) of the outer surface of the end filter (40) 71.5 60.9 60.9 58.7 59.0 68.2 62.8 61.0

Referring to Table 1, it can be seen that the temperature of the downstream end of the end filter 40 decreases as the number of holes provided in the at least one perforation 55 increases.

In addition, it can be seen that the temperature of the outer surface of the end filter 40 is lower when the at least one perforation 55 is opened than in the case where the at least one perforation 55 is closed and in the case of its existing cigarette. It can be seen that the closer the position at which the at least one perforation 55 is formed is from the end filter 40, the more effective the cooling effect of the outer surface of the end filter 40 is.

Table 2 below is a graph showing comparison of suction characteristics of the company's existing cigarette having a hollow airflow cooling element as a cooling unit and an embodiment having a channel type airflow transmitting element as a cooling unit. The embodiment is provided with a porous wrapper 60 having a porosity of 24000cu and the size of the hole is 0.05mm.

Referring to Table 1, it can be seen that the temperature of the downstream end of the end filter 40 decreases as the number of holes provided in the at least one perforation 55 increases.

In addition, it can be seen that the temperature of the outer surface of the end filter 40 is lower when the at least one perforation 55 is opened than in the case where the at least one perforation 55 is closed and in the case of its existing cigarette. It can be seen that the closer the position at which the at least one perforation 55 is formed is from the end filter 40, the more effective the cooling effect of the outer surface of the end filter 40 is.

Table 2 below is a graph showing comparison of suction characteristics of the company's existing cigarette having a hollow airflow cooling element as a cooling unit and an embodiment having a channel type airflow transmitting element as a cooling unit. The embodiment is provided with a porous wrapper 60 having a porosity of 24000cu and the size of the hole is 0.05mm.

Cooling part division Hollow Airflow Cooling Element Channel type airflow transmission element Hollow Airflow Cooling Element Channel type airflow transmission element Perforation position/number Unapplied 22mm/6 hole 15mm/6 hole Unapplied 22mm/6 hole 15mm/6 hole whether capsules applied to the end filter (40) Not applied to the end filter (40) EPD (mmH2O) 63 55 UPD (mmH2O) 60 54 52 52 43 41 Air dilution rate (%) 5.2 16.3 20.1 5.5 21.3 24.0

Referring to Table 2, as one of the suction properties, the encapsulated pressure drop (EPD), which is the suction resistance when the at least one perforation 55 is closed, is the same in the aerosol-generating article 100 according to some embodiments as compared to the existing cigarette. do. In addition, as one of the suction properties, it can be seen that the unencapsulated pressure drop (UPD), which is the resistance to suction when the at least one perforation 55 is opened, is reduced in the aerosol-generating article 100 according to some embodiments compared to a conventional cigarette. have.

It can also be seen that the air dilution rate increases as the at least one perforation 55 is applied. It is determined that this is because outside air is introduced into the aerosol-generating article 100 through the at least one perforation 55 .

Table 3 below compares the difference between the smoke component of an aerosol-generating article 100 having a capsule in the filter and having at least one perforation 55 and a conventional cigarette having a hollow airflow cooling element as a cooling unit. This is the graph shown. In an embodiment the at least one perforation 55 is formed 15 mm and 22 mm away from the end filter 40 .

division TPM
(mg/8puff) Tar
(mg/8puff) Nic.
(mg/8puff) PG
(mg/8puff) Gly.
(mg/8puff) moisture
(mg/8puff) cooling unit boring Hollow Airflow Cooling Element Unapplied 45.79 14.88 0.89 0.47 3.09 30.02 tube filter 22mm 42.83 12.27 0.85 0.42 2.96 29.71 15mm 45.16 12.83 0.81 0.41 2.74 31.52

(Smoking conditions: HC conditions (Puff Vol. 55ml, Puff duration 2s, Puff Interval 30s))

Referring to Table 3, the amount of each component of the smoke of the company's existing cigarette having the hollow airflow cooling element as the cooling unit and the amount of each component of the smoke in the embodiment having the channel type airflow transmitting element as the cooling unit are significantly different. It can be seen that is not visible.

Table 4 below shows that the gaseous component and the particulate component of the aerosol-generating article 100 having at least one perforation 55 are reduced compared to the gaseous component and the particulate component of a conventional cigarette having a hollow airflow cooling element as a cooling unit. It is a graph showing the degree.

division Tar NOx HCN NNN Benzene Toluene Compared to cigarettes having a hollow airflow cooling element as a cooling unit 17.5% reduction 31.9% reduction 41.8% reduction 19.9% reduction 21.1% reduction 35.2% reduction

Referring to Table 4, it can be seen that the gaseous component and particulate component of the aerosol-generating article 100 according to the embodiment are reduced compared to the gaseous component and particulate component of a conventional cigarette having a hollow airflow cooling element as a cooling unit. .

According to Tables 1 to 4, it can be seen that the cooling effect of the aerosol-generating article 100 according to the embodiments remains substantially the same as compared to a conventional cigarette having a conventional hollow airflow cooling element as a cooling unit. have. However, the hollow airflow cooling element used in the conventional cigarette needs to be manufactured in a specific shape and structure in order to increase the cooling effect, and thus the manufacturing process may be complicated and the manufacturing cost may be excessive.

In order to solve the above-mentioned problems, the aerosol-generating article 100 according to the embodiments includes a packaging material comprising a channel-type air-flow transfer element and at least one perforation instead of a hollow air-flow cooling element. Accordingly, the manufacturing cost can be reduced, and the manufacturing process can be simplified.

5 is a axial cross-sectional view of an aerosol-generating article 100 according to another embodiment.

The configuration and effects of the aerosol-generating article 100 according to an embodiment of the present invention shown in FIG. Since it is the same as, detailed description in the overlapping range will be omitted.

At least one inner perforation (70) is provided from an outer surface of at least one of the first channel-shaped airflow-transmitting element (20) and the second channel-shaped airflow-transmitting element (30) from the first channel-shaped airflow-transmitting element (20) and the second channel. It may be positioned to extend into at least one of the type airflow transmission elements 30 . For example, the at least one internal perforation 70 may be positioned extending from an outer surface of the first channel-shaped airflow transfer element 20 to an inner surface of the first channel-shaped airflow transfer element 20 and a second channel-shaped airflow transfer element 20 . It may be located extending from the outer surface of the transmission element 30 to the inner surface of the second channel-type airflow transmission element 30 .

Outside air may flow from the outside through the at least one perforation 55 to the aerosol-generating article 100 and then through the at least one inner perforation 70 to a first channel-shaped airflow transfer element 20 and It can flow into at least one of the second channel-shaped airflow transfer elements 30 .

The outside air can be introduced into the first channel-type airflow transfer element 20 and the second channel-type airflow transfer element 30 more rapidly through the inner perforation 70 , so that a rapid cooling effect can occur.

Inside at least one of the first channel-type airflow transfer element 20 and the second channel-type airflow transfer element 30 and at least of the first channel-type airflow transfer element 20 and the second channel-type airflow transfer element 30 The cooling process and cooling effect that may occur on one outer surface are the same as described above.

A person of ordinary skill in the art related to the present embodiments will understand that it may be implemented in a modified form without departing from the essential characteristics of the above description. Therefore, the disclosed methods are to be considered in an illustrative rather than a restrictive sense. The scope of the present embodiments is indicated in the claims rather than the above description, and all differences within the scope equivalent thereto should be construed as included in the present embodiments.

Claims (10)

aerosol-generating matrix;
a first channel-type airflow transfer element adjacent to the aerosol-generating substrate and positioned downstream of the aerosol-generating substrate;
a second channel-type airflow transfer element abutting the first channel-type airflow transfer element and positioned downstream of the first channel-type airflow transfer element;
an end filter abutting the second channel-type airflow-transmitting element and positioned downstream of the second channel-type airflow-transmitting element; and
A packaging material surrounding the aerosol-generating substrate part, the first channel-type airflow transfer element, the second channel-type airflow transfer element, and the end filter,
the second channel-type airflow-transmitting element has an inner diameter greater than that of the first channel-type airflow-transmitting element;
at least one perforation is formed in the packaging material at a position corresponding to a portion surrounding the second channel-type airflow transfer element. The method of claim 1,
When the user smokes the aerosol-generating article, mainstream smoke generated from the aerosol-generating substrate portion and passing through the first channel-type airflow transfer element and the second channel-type airflow transfer element is externally introduced through the at least one perforation. An aerosol-generating article cooled by mixing with air. The method of claim 1,
When the user smokes the aerosol-generating article, the outer surface of at least one of the first channel-type airflow transfer element, the second channel-type airflow transfer element, and the end filter is caused by external air introduced through the at least one perforation. A cooled, aerosol-generating article. The method of claim 1,
wherein the at least one perforation has 4 to 10 holes formed along the outer circumferential surface of the packaging material. The method of claim 1,
The length of the aerosol-generating substrate portion is 11 mm to 13 mm, the length of the first channel-type airflow transfer element is 9 mm to 11 mm, the length of the second channel-type airflow transfer element is 13 mm to 15 mm, and the length of the end filter is 11 mm to 13 mm. The method of claim 1,
wherein the at least one perforation is formed in the packaging material at a location spaced from 15 mm to 22 mm in an upstream direction from the downstream end of the end filter. The method of claim 1,
wherein the aerosol-generating article further comprises a porous wrapper between the packaging material and at least one of the first channel-type airflow transfer element and the second channel-type airflow transfer element. The method of claim 1,
The inner diameter of the first channel-type airflow-transmitting element is from 2.0 mm to 4.5 mm and the inner diameter of the second channel-type airflow-transmitting element is from 3.0 mm to 5.5 mm. 9. The method of claim 8,
and the inner diameter of the first channel-type airflow-transmitting element is 3.4 mm and the inner diameter of the second channel-type airflow-transmitting element is 4.0 mm. The method of claim 1,
and an outer surface of at least one of the first channel-shaped airflow-transmitting element and the second channel-shaped airflow-transmitting element comprises at least one interior perforation.

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