KR20190114226A - Aerosol generating article including at least one perforation - Google Patents

Abstract

Disclosed is an aerosol generation article including at least one perforation, which is capable of increasing cooling effect for main stream smoke. According to one embodiment of the present invention, the aerosol generation article including at least one perforation comprises: an aerosol generation base part; a first channel-type stream transfer element adjacent to the aerosol generation base part to be placed in a downstream of the aerosol generation base part; a second channel-type stream transfer element adjacent to the first channel-type stream transfer element to be placed in a downstream of the first channel-type stream transfer element; an end filter adjacent to the second channel-type stream transfer element to be placed in a downstream of the second channel-type stream transfer element; and a packaging material covering the aerosol generation base part, the first and second channel-type stream transfer elements, and the end filter. The second channel-type stream transfer element has a greater inner diameter than that of the first channel-type stream transfer element, and the at least one perforation is formed on at least one position spaced 12 to 24 mm apart from the downstream end of the end filter toward an upstream direction in the packaging material.

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 aperture for a cooling effect.

In recent years there is an increasing demand for alternative methods to overcome the shortcomings of common aerosol-generating articles. For example, there is an increasing demand for aerosol-generating methods by heating the aerosol-generating substrate portion in the aerosol-generating article, rather than burning the aerosol-generating article to produce an aerosol. Accordingly, research on heated aerosol-generating articles or heated aerosol-generating devices has been actively conducted.

Combustion aerosol-generating articles or non-combustible (heating) aerosol-generating articles include filters for filtering certain components contained in the aerosol or for cooling the aerosol. In recent years, research for improving the performance of a filter by changing the component which comprises a filter, or the structure of a filter is ongoing.

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

However, the hollow airflow cooling element provided in the filter of the conventional cigarette needs to be manufactured in a specific shape and structure in order to enhance the cooling effect, and thus the manufacturing process of the filter including the hollow airflow cooling element can be complicated. In this case, the manufacturing cost can be increased. Therefore, there is a need for a technique that simplifies the manufacturing process of the filter and reduces the manufacturing cost while maintaining the cooling effect as a conventional cigarette filter.

One or more embodiments provide an aerosol-generating article comprising at least one aperture. The technical problem to be achieved by the present embodiment is not limited to the technical problems as described above, and further technical problems can 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 portion; A first channel-type airflow delivery element located downstream of the aerosol-generating substrate portion and bordering the aerosol-generating substrate portion; A second channel-like airflow transmission element positioned downstream of the first channel-like airflow transmission element adjacent to the first channel-like airflow transmission element; An end filter positioned downstream of the second channel-type airflow transmission element, abutting the second channel-type airflow transmission element; And a packaging material surrounding the aerosol-generating substrate portion, the first channel type air flow transfer element, the second channel type air flow transfer element, and the end filter, wherein the second channel type air flow transfer element is the first channel type air flow. It has an inner diameter larger than a transfer element and at least one perforation is formed in at least one position spaced 12 mm to 24 mm upstream from the downstream end of the end filter in the packaging.

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

When smoking the aerosol-generating article, an outer surface of at least one of the first channeled airflow delivery element, the second channeled airflow delivery element and the end filter may be cooled by external air introduced through the at least one aperture. 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 portion is 11mm to 13mm, the length of the first channel type airflow transmission element is 9mm to 11mm, the length of the second channel type airflow transmission element is 13mm to 15mm, the length of the end filter 11 mm to 13 mm, wherein the at least one perforation may be formed in at least one position corresponding to a portion of the packaging material surrounding the second channel type airflow transmission element.

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 packaging material.

The aerosol-generating article may further comprise a porous wrapper between at least one of the first channeled airflow delivery element and the second channeled airflow delivery element and the packaging material.

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 transmission element may be 3.4 mm, and the inner diameter of the second channel type airflow transmission element may be 4.0 mm.

The outer surface of at least one of the first channel-like airflow transmission element and the second channel-like airflow transmission element may include at least one internal perforation.

The aerosol-generating article according to embodiments includes an aerosol-generating substrate portion, a first channel type airflow delivery element, a second channel type airflow delivery element, an end filter and an aerosol generating substrate portion, a first channel type airflow delivery element, a second channel type. It may be provided with a wrapping material surrounding the airflow delivery element and the end filter. As the perforation is located in the packaging material, outside air can flow from the outside through the perforation into the interior of the aerosol-generating article. The outside air flowing into the interior of the aerosol-generating article may be mixed with the mainstream smoke.

The temperature of the outside air may be lower than the temperature of the mainstream smoke flowing in the interior of the aerosol-generating article, which may result in the cooling effect of the mainstream smoke inside the aerosol-generating article. In addition, 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 cavity 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 the contact time between the diffused mainstream smoke and the outside air flowing into the second channel-type airflow delivery element can be increased. Accordingly, the cooling effect of the mainstream smoke can 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 cross-sectional view along a central axis of an aerosol-generating article according to one embodiment.
2 is a perspective view of an aerosol-generating article according to one embodiment.
3 is a central axial cross-sectional view of the aerosol-generating article showing the flow of mainstream smoke and external air in the aerosol-generating article according to one embodiment.
4 is a cross-sectional view along a central axis of an aerosol-generating article according to another embodiment.
5 is a cross-sectional view along a central axis of an aerosol-generating article according to yet another embodiment.

Hereinafter, exemplary embodiments will be described in detail with reference to the accompanying drawings. It is to be understood that the description below is intended to be specific to the embodiments, and not to limit or limit the scope of the invention. It can be interpreted to fall within the scope of rights that can be easily inferred by those skilled in the art from the detailed description and examples.

The terms 'comprise' or 'comprise' as used herein are not to be construed as necessarily including all of the various components or steps described in the specification, some of the components or some of the steps Should not be included, or should be construed to further include additional components or steps.

In addition, terms including ordinal numbers such as 'first' or 'second' as used herein may 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.

The terminology used herein is to select general terms that are currently widely used as possible in consideration of the functions in the embodiment, but this may vary depending on the intention or precedent of the person skilled in the art, the emergence of new technologies, and the like. In addition, in certain cases, there is also a term arbitrarily selected by the applicant, in which case the meaning will be described in detail in the description of the invention. Therefore, the terms used in the embodiments should be defined based on the meanings of the terms and the contents throughout the embodiments, rather than simply the names of the terms.

Throughout the specification 'aerosol-generating article' may refer to a substance capable of generating an aerosol, such as tobacco (cigarette), cigars and the like. The aerosol-generating article may comprise an aerosol-generating substance or an aerosol-forming substrate. The aerosol-generating article may also include a solid material based on tobacco raw material, such as leaf tobacco, vinegar, reconstituted tobacco. Aerosols can include volatile compounds.

In addition, throughout the specification 'upstream' or 'upstream direction' means a direction away from the user's bend smoking the aerosol-generating article 100 and 'downstream' or 'downstream direction' means smoking the aerosol-generating article 100 Means the direction closer to the user's bend. For example, in the aerosol-generating article 100 shown in FIG. 1, the aerosol-generating substrate portion 10 is located upstream or upstream of the first channeled airflow delivery element 20.

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

The aerosol-generating article 100 according to the embodiment is a first channel-type airflow delivery element 20 located downstream of the aerosol-generating substrate portion 10 in contact with the aerosol-generating substrate portion 10 and the aerosol-generating substrate portion 10. ), The second channel type airflow transmission element 30 and the second channel type airflow transmission element 30 located downstream of the first channel type airflow transmission element 20 in contact with the first channel type airflow transmission element 20. A) end filter 40 and aerosol-generating substrate portion 10, first channel type airflow delivery element 20, and second channel type airflow delivery downstream of second channel type airflow delivery element 30 It may be provided with a wrapper 50 surrounding the element 30 and the end filter 40.

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

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.

The aerosol generating substrate portion 10 may have a long elongated cylindrical shape, the length of which may vary from 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 substrate portion 10 may contain other additive materials such as flavoring agents, wetting agents and / or acetate compounds. For example, the flavoring agent is 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. Wetting agents may also include glycerin or propylene glycol and the like.

The aerosol-generating substrate portion 10 is prepared by pulverizing tobacco raw materials, mixing solvents and various additives, preparing them in a slurry form, and drying them to form sheets, and then processing such sheets to form reconstituted tobacco materials having pieces such as rods. It may include.

For example, the aerosol-generating substrate portion 10 includes a plurality of tobacco material strands, each of which has a length of 10-14 mm (eg, 12 mm) and a width of 0.8-1.2 mm (eg, 1 mm) and a thickness of 0.08 mm to 0.12 mm (eg 0.1 mm).

By allowing the aerosol-generating substrate portion 10 to include a plurality of strand materials processed into a wide tobacco sheet form, aerosol generation can be increased as the density of the tobacco material filled in the aerosol-generating substrate portion 10 is increased, and the aerosol Manufacturing characteristics of the generating substrate portion 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 have a first channeled airflow delivery element 20, the first channeled airflow delivery element 20 bordering the aerosol-generating substrate portion 10 and the aerosol-generating substrate portion 10. Can be located downstream.

The diameter of the first channeled airflow delivery element 20 may be between 7 mm and 9 mm, for example about 7.9 mm.

The first channeled airflow delivery element 20 may be tubular in shape including a hollow therein. At this time, the shape of the hollow cross section may be a polygon or a circle, but the size and shape of the hollow is not limited thereto.

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

The first channel-type airflow transmission element 20 may include a material through which external gas may flow into the hollow of the first channel-type airflow transmission 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 have a second channeled airflow transmission element 30, the second channeled airflow transmission element 30 bordering the first channeled airflow transmission element 20 and the first channel. It may be located downstream of the mold airflow transmission element 20.

The diameter of the second channeled airflow transmission element 30 may be between 7 mm and 9 mm, for example about 7.9 mm. The second channeled airflow delivery element 30 may be tubular in shape including a hollow therein. At this time, the shape of the hollow cross section may be a polygon or a circle, but the size and shape of the hollow is not limited thereto.

The length of the second channeled airflow transmission element 30 may be about 13 mm to 15 mm, for example about 14 mm. The inner diameter of the second channeled airflow transmission element 30 may be about 3.0 mm to 5.5 mm, for example 4.0 mm. At this time, the inner diameter of the second channel type airflow transmission element 30 may be larger than the inner diameter of the first channel type airflow transmission element 20.

Since the inner diameters of the first channel type airflow transmission element 20 and the second channel type airflow transmission element 30 are different from each other, the first channel type airflow transmission element 20 and the second channel type airflow transmission element 30 The mainstream smoke flowing in the cavity may diffuse. The diffused mainstream smoke increases the area and time of contact with the outside air flowing into the second channel type airflow delivery element 30 as the deflection in the downstream direction of the aerosol-generating article 100 decreases. Accordingly, the cooling effect of the mainstream smoke can 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 with reference to FIG. 3 below.

The second channel-type airflow transmission element 30 may include a material through which external gas may flow into the hollow of the second channel-type airflow transmission 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 have an end filter 40, which is bound to the second channeled airflow delivery element 30 and downstream of the second channeled airflow delivery element 30. Can be located.

The end filter 40 may be an area that passes through the mainstream smoke generated in the aerosol-generating substrate 10 just before the user inhales. 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, for example, may include cellulose acetate.

The end filter 40 may be cylindrical. In other embodiments, the end filter 40 may be tubular in shape 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 is not limited thereto.

According to one embodiment, the aerosol-generating article 100 includes at least one of a first channeled airflow delivery element 20, a second channeled airflow delivery element 30, and an end filter 40 of the aerosol-generating article 100. It can contain capsules.

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

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

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

The aerosol-generating article 100 has an aerosol-generating substrate portion 10, a first channeled airflow delivery element 20, a second channeled airflow delivery element 30, and a packaging 50 surrounding the end filter 40. The inner surface of the packaging material 50 may face the outer surfaces of the aerosol-generating substrate portion 10, the first channel type airflow transmission element 20, the second channel type airflow transmission element 30, and the end filter 40. do.

The packaging material 50 shown in FIGS. 1 to 5 has an outer surface of the aerosol-generating substrate portion 10, the first channel type airflow delivery element 20, the second channel type airflow delivery element 30, and the end filter 40. Although shown to be spaced apart from the above, for convenience of explanation only the packaging material 50 and the aerosol-generating substrate portion 10, the first channel type airflow transmission element 20, the second channel type airflow transmission 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 delivery element 20, the second channel type airflow delivery 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 50. At this time, the at least one perforation 55 may be formed at a position spaced 12 mm to 24 mm, preferably 15 mm to 22 mm in the upstream direction from the downstream end of the end filter 40. For example, the at least one perforation 55 may be formed in at least one of about 15 mm apart, 20 mm apart and 22 mm apart locations upstream from the downstream end of the end filter 40.

The at least one perforation 55 may have four to ten holes, for example four, six or eight. Hereinafter, an example of at least one perforation 55 formed in the packaging 50 of the aerosol-generating article 100 will be described in detail 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 in an upstream direction from the downstream end of the end filter 40 in the packaging 50 to separate the second channel type airflow delivery element 30. An example is shown formed in a position corresponding to the wrapping portion. As shown in FIG. 2, the at least one perforation 55 may have four holes. However, it is not limited thereto. The at least one perforation 55 may be formed in at least one position spaced about 12 mm to 24 mm in an upstream direction from the downstream end of the end filter 40 in the packaging 50. The at least one perforation 55 may have four to ten holes, for example four, six or eight.

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

Outside air may be introduced into the packaging 50 through the at least one perforation 55. At this time, the outside air introduced through the at least one perforation 55 and 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). Can be contacted.

The temperature of the outside 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 air flow transfer element 20, the second channel type air flow transfer element 30, and the end filter 40. Can 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 cross-sectional view along the central axis of the aerosol-generating article 100 showing the flow of mainstream smoke and external air in the aerosol-generating article 100 according to one embodiment.

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

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

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

The co-flowing mainstream smoke of the first channeled airflow delivery element 20 may flow in the first channeled airflow delivery element 20 toward the downstream direction of the first channeled airflow delivery element 20.

Outside air may flow into the packaging 50 through the at least one perforation 55. Some of the external air flowing into the package 50 may flow into the first channeled airflow delivery element 20.

The outside air flowing into the first channel type airflow transmission element 20 and the mainstream smoke flowing inside the first channel type airflow transmission element 20 may be mixed inside the first channel type airflow transmission element 20. .

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

The mainstream smoke may then flow toward the cavity direction of the second channel-like airflow transmission element 30 at the downstream end of the cavity of the first channel-like airflow transmission element 20.

The inner diameter of the second channeled airflow delivery element 30 of the aerosol-generating article 100 in one embodiment may be larger than the inner diameter of the first channeled airflow delivery element 20. Therefore, since the size of the inner diameter of the first channel type airflow transmission element 20 and the size of the inner diameter of the second channel type airflow transmission element 30 are different, the mainstream smoke passing through the cavity of the first channel type airflow transmission element 20 is different. The flow of can be changed.

Commonly flowing mainstream smoke of the second channel-type airflow transmission element 30 may diffuse at an upstream end portion of the cavity of the second channel-type airflow transmission element 30. At least a portion of the mainstream smoke may flow towards the inner surface of the second channel-like airflow transmission element 30.

As the deflection of the diffused mainstream smoke in the downstream direction of the aerosol-generating article 100 decreases, the contact area and the contact time between the diffused mainstream smoke and the outside air flowing into the second channel-type airflow transmission element 30 are increased. Can be. Accordingly, the cooling effect of the mainstream smoke can be improved.

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

The downstream direction of the outside air flowing into the second channel type airflow transmission element 30 and the central axis of the second channel type airflow transmission element 30 in the cavity of the second channel type airflow transmission element 30 is directed to the downstream direction. The mainstream smoke flowing toward can be mixed inside the second channel-like airflow transmission element 30.

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

The mainstream smoke may then flow into the end filter 40 at the downstream end of the cavity of the second channeled airflow delivery element 30.

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

The outside air flowing into the end filter 40 and the 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, which may result in the cooling effect of the mainstream smoke inside the end filter 40.

The other portion of the outside air flowing into the package 50 is in contact with the outer surface of at least one of the first channeled airflow delivery element 20, the second channeled airflow delivery element 30, and the end filter 40. 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 may be cooled by external air.

The mainstream smoke may be sucked into the user's bend 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 cross-sectional view along a central axis of the aerosol-generating article 100 according to another embodiment.

Referring to FIG. 4, the aerosol-generating article 100 is connected to the aerosol-generating substrate portion 10 and the aerosol-generating substrate portion 10. 20, a second channel type airflow transmission element 30 and a second channel type airflow transmission element (30) positioned downstream of the first channel type airflow transmission element 20 in contact with the first channel type airflow transmission element 20 ( An end filter 40 and a first channeled airflow delivery element 20, a second channeled airflow delivery element 30 and an end filter positioned downstream of the second channeled airflow delivery element 30 in contact with 30). The packaging material 50 surrounding the 40 may be provided.

The aerosol-generating article 100 may further include a porous wrap 60 between at least one of the first channeled airflow delivery element 20 and the second channeled airflow delivery element 30 and the packaging material 50. In FIG. 4, a porous wrapper 60 is shown between the second channel-type airflow delivery element 20 and the packaging material 50, but the porous wrapper 60 is formed with the first channel-type airflow delivery element 20. It may be provided between the packaging material 50, and may be provided between both 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 foregoing example.

Except for the configuration of the porous wrapper 60, the aerosol-generating article 100 according to the embodiment of the present invention shown in FIG. Since it is the same as, the 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 transmission element 20 and the second channel type airflow transmission element 30 to form the first channel type airflow transmission element 20. And at least one of the second channel-type airflow delivery elements 30.

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

Some of the external air flowing into the packaging 50 may pass through the porous wrapper 60 to flow into at least one of the first channel type airflow transmission element 20 and the second channel type airflow transmission element 30. have.

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

The other portion of the outside air flowing into the packaging 50 passes through the porous wrapper 60 to pass through at least one of the first channeled airflow delivery element 20, the second channeled airflow delivery element 30, and the end filter 40. In contact with one outer surface.

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 may be cooled by external air. The outside air may be trapped in the porous wrapper 60 to more effectively 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. You can.

The first channeled airflow delivery element 20 and the second channeled airflow delivery because the porous wrapper 60 surrounds at least one of the first channeled airflow delivery element 20 and the second channeled airflow delivery element 30. At least one of the elements 30 can stably maintain 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 with a conventional cigarette having a filter comprising a hollow airflow cooling element and a porous wrapper 60 having a porosity of 24000 cu for some embodiments. In the embodiment where the perforations are open, at least one perforation 55 is formed 15 mm or 22 mm away from the end filter 40. In addition, the case where the at least one perforation 55 is closed in order to determine the effect of the at least one perforation 55 was also included in the comparison.

Existing cigarette Embodiments with Closed Perforation Embodiments with Open Perforation 15 mm position 22 mm position 4 holes 6 holes 8 holes 4 holes 6 holes 8 holes Downstream end temperature (° C) of the end filter 40 66.6 73.1 71.1 67.0 63.1 69.2 63.8 60.5 Temperature of mainstream smoke passing through end filter 40 (° C) 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 at the downstream end of the end filter 40 is lowered as the number of holes included 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 aperture 55 is open than when the at least one aperture 55 is closed and its existing cigarette. It can be seen that the closer the position where the at least one perforation 55 is formed from the end filter 40, the more efficient the cooling effect of the outer surface of the end filter 40 is.

Table 2 below is a graph showing a comparison of the suction characteristics of the embodiment having a conventional airflow cooling element as a cooling unit and a channel-type airflow transmission element as a cooling unit. The embodiment has a porous wrapper 60 having a porosity of 24000 cu and the hole size is 0.05 mm.

Referring to Table 1, it can be seen that the temperature at the downstream end of the end filter 40 is lowered as the number of holes included 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 aperture 55 is open than when the at least one aperture 55 is closed and its existing cigarette. It can be seen that the closer the position where the at least one perforation 55 is formed from the end filter 40, the more efficient the cooling effect of the outer surface of the end filter 40 is.

Table 2 below is a graph showing a comparison of the suction characteristics of the embodiment having a conventional airflow cooling element as a cooling unit and a channel-type airflow transmission element as a cooling unit. The embodiment has a porous wrapper 60 having a porosity of 24000 cu and the hole size is 0.05 mm.

Cooling unit division Hollow airflow cooling element Channel type airflow transmission element Hollow airflow cooling element Channel type airflow transmission element Drilling position / count Unapplied 22mm / 6 holes 15 mm / 6 holes Unapplied 22mm / 6 holes 15 mm / 6 holes Capsule or not Applied to the end filter 40 Not applied to 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 characteristics, 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 for the existing cigarette and in some embodiments. Do. In addition, as one of the suction characteristics, it can be seen that the unencapsulated pressure drop (UPD), which is a suction resistance when the at least one perforation 55 is opened, is reduced in comparison to conventional cigarettes in the aerosol-generating article 100 according to some embodiments. have.

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

Table 3 below compares the differences in the constituents of the conventional cigarettes with a hollow airflow cooling element and a smoke component of the aerosol-generating article 100 with a capsule applied within the filter and having at least one aperture 55. The graph shown. In an embodiment at least one perforation 55 was formed 15 mm and 22 mm 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 section boring Hollow airflow cooling element Unapplied 45.79 14.88 0.89 0.47 3.09 30.02 Tube filter 22 mm 42.83 12.27 0.85 0.42 2.96 29.71 15 mm 45.16 12.83 0.81 0.41 2.74 31.52

(Smoking condition: HC condition (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 a 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 transmission element as the cooling unit are significantly different. You can see that it does not look.

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

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

Referring to Table 4, it can be seen that the gaseous and particulate components of the aerosol-generating article 100 according to the embodiment are reduced compared to the gaseous and particulate components of the existing cigarette having the 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 section. have. However, the hollow airflow cooling elements used in existing cigarettes need 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 has a packaging comprising a channeled airflow transfer element and at least one perforation instead of a hollow airflow cooling element. Thus, the manufacturing cost can be reduced and the manufacturing process can be simplified.

5 is a cross-sectional view along a central axis of the aerosol-generating article 100 according to another embodiment.

Except for the configuration of the inner perforation 70 of the aerosol-generating article 100 according to another embodiment shown in FIG. 5, the configuration and effect of the aerosol-generating article 100 according to the embodiment of the present invention shown in FIG. Since it is the same as, the detailed description in the overlapping range will be omitted.

At least one inner perforation 70 is formed from the outer surface of at least one of the first channel type airflow transmission element 20 and the second channel type airflow transmission element 30 and the second channel type airflow transmission element 20 and the second channel. It may be positioned extending into at least one of the mold airflow transmission element (30). For example, the at least one inner perforation 70 may be located extending from the outer surface of the first channeled airflow transmission element 20 to the inner surface of the first channeled airflow transmission element 20 and the second channeled airflow. It may be located extending from the outer surface of the transmission element 30 to the inner surface of the second channel-like airflow transmission element 30.

The outside air may flow from the outside through the at least one aperture 55 and flow into the aerosol-generating article 100, and then through the at least one inner aperture 70 to pass the first channeled airflow delivery element 20 and It may flow into at least one of the second channeled airflow delivery elements 30.

Through the inner perforation 70, the outside air can be introduced into the first channel type airflow transmission element 20 and the second channel type airflow transmission element 30 more quickly, so that a rapid cooling effect can occur.

At least one of the first and second channel-like airflow transmission elements 20 and the second channel-like airflow transmission element 30 and at least one of the first and second channel-like airflow transmission elements 30. The cooling process and the cooling effect that can occur at one outer surface are the same as the above.

Those skilled in the art will appreciate that the present invention may be implemented in a modified form without departing from the essential characteristics of the above-described substrate. Therefore, the disclosed methods should be considered in descriptive sense only and not for purposes of limitation. The scope of the present embodiments is shown in the claims rather than the foregoing description, and all differences within the scope will be construed as being included in the embodiments.

Claims (10)

Aerosol generating substrate portion;
A first channel-type airflow delivery element located downstream of the aerosol-generating substrate portion and in contact with the aerosol-generating substrate;
A second channel-like airflow transmission element located downstream of the first channel-like airflow transmission element bordering the first channel-like airflow transmission element;
An end filter located downstream of the second channel-type airflow transmission element, abutting the second channel-type airflow transmission element; And
A packaging material surrounding the aerosol-generating substrate portion, the first channel type airflow delivery element, the second channel type airflow delivery element, and the end filter,
The second channel-type airflow transmission element has a larger internal diameter than the first channel-type airflow transmission element,
At least one perforation is formed in at least one position spaced 12 mm to 24 mm in an upstream direction from a downstream end of the end filter in the packaging material. The method of claim 1,
When a user smokes the aerosol-generating article, the mainstream smoke generated from the aerosol-generating substrate portion and passing through the first channel type airflow delivery element and the second channel type airflow delivery element is introduced into the at least one aperture. An aerosol-generating article that is cooled by mixing with air. The method of claim 1,
When a user smokes the aerosol-generating article, an outer surface of at least one of the first channeled airflow delivery element, the second channeled airflow delivery element and the end filter is caused by external air introduced through the at least one aperture. An aerosol-generating article that is cooled. The method of claim 1,
Wherein the at least one perforation comprises four to ten holes formed along an outer circumferential surface of the packaging material. The method of claim 1,
The length of the aerosol-generating substrate portion is 11mm to 13mm, the length of the first channel type airflow transmission element is 9mm to 11mm, the length of the second channel type airflow transmission element is 13mm to 15mm, the length of the end filter 11mm to 13mm,
Wherein said at least one perforation is formed in at least one position corresponding to a portion of the packaging material surrounding the second channel-like airflow delivery element. The method of claim 1,
Wherein said at least one perforation is formed at a position spaced 15 mm to 22 mm in an upstream direction from a downstream end of said end filter in said packaging material. The method of claim 1,
And the aerosol-generating article further comprises a porous wrapper between at least one of the first channeled airflow delivery element and the second channeled airflow delivery element and the packaging material. The method of claim 1,
The inner diameter of the first channeled airflow delivery element is 2.0 mm to 4.5 mm and the inner diameter of the second channeled airflow delivery element is 3.0 mm to 5.5 mm. The method of claim 8,
The aerosol-generating article of claim 1, wherein an inner diameter of the first channel type airflow transmission element is 3.4 mm and an inner diameter of the second channel type airflow transmission element is 4.0 mm. The method of claim 1,
And an outer surface of at least one of the first channeled airflow delivery element and the second channeled airflow transport element comprises at least one internal perforation.

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