KR20190143006A - Aerosol-generating articles and method for producing the same - Google Patents

Abstract

An aerosol-producing article may include a heat transfer portion transferring heat to a medium portion for producing an aerosol. A method of manufacturing the aerosol-producing article can include a step of manufacturing the heat transfer portion transferring heat to the medium portion for producing the aerosol.

Description

Aerosol-generating article and manufacturing method of aerosol-generating article {AEROSOL-GENERATING ARTICLES AND METHOD FOR PRODUCING THE SAME}

The present disclosure relates to articles that produce aerosols and methods of making articles that produce aerosols.

In recent years there is a growing demand for alternative ways to overcome the shortcomings of common cigarettes. For example, there is an increasing demand for how aerosols are produced as the aerosol generating material in the cigarette is heated, rather than burning the cigarette to produce aerosols. Accordingly, studies on heated cigarette or heated aerosol generating devices are actively progressing.

In an article that produces an aerosol, there is provided a segment that transmits heat to an aerosol-generating material and a method of making the segment.

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.

According to an aspect, an aerosol-generating article may include: a heat transfer part including structure particles including carbon and a binder adhered to a surface of the structure particles to form pores between the structure particles to support the structure particles; And a medium unit including a solid particle generating an aerosol and a heat transfer material mixed with the solid particle to transfer heat to the solid particle.

In the aerosol-generating article described above, the medium portion further comprises a binder that adheres to the surface of the solid particles to form pores between the solid particles to support the solid particles.

In the aerosol-generating article described above, the binder comprises any one of carboxymethyl cellulose, hydroxypropyl methylcellulose, pullulan and starch.

In the aerosol-generating article described above, the structure particles include activated carbon, carbon nanotubes, graphene, a polymer substrate having a thermal conductivity of 0.1 W / mK or more, and a metal material having a thermal conductivity of 10.0 W / mK or more. It includes either.

In the aforementioned aerosol-generating article, the heat transfer material is activated carbon, carbon nanotubes, graphene, a polymer substrate having a thermal conductivity of 0.1 W / mK or more, and a metal material having a thermal conductivity of 10.0 W / mK or more. It includes any one of.

In the aerosol-generating article described above, one side of the medium portion is connected to the heat transfer portion, the mouthpiece portion connected to the other side of the medium; further comprises a temperature of 250 ℃ to 350 ℃ at the end of the heat transfer portion When heat in the range is applied, the temperature range of the portion where the heat transfer portion and the medium portion contact each other is 220 ° C to 320 ° C, and the temperature range of the portion where the medium portion and the mouthpiece part contact each other is 70 ° C to 100 ° C. The temperature range of the end part of a mouthpiece part is 40 to 70 degreeC.

According to another aspect of the present invention, there is provided a method of manufacturing an aerosol-generating article, wherein a binder is adhered to a surface of a structure particle including carbon to form a heat transfer part by mixing the structure particle and the binder such that pores are formed between the structure particles. ; Mixing a solid particle that produces an aerosol and a heat transfer material that transfers heat to the solid particle to form a medium portion; And surrounding the outer packaging material by connecting the heat transfer part and the medium part.

In the above-described manufacturing method, the forming of the medium portion, the binder is bonded to the surface of the solid particles are mixed together so that pores are formed between the solid particles.

In the above-mentioned manufacturing method, the suction resistance of the mixture of the structure particles and the binder is 50 mmH 2 O / 30 mm or less.

1 illustrates an article that produces an aerosol in accordance with some embodiments.
2 illustrates an aerosol-generating article that includes a heat transfer portion in accordance with some embodiments.
FIG. 3 is a view for explaining a process of forming pores between structure particles through point bonding between structure particles including carbon and a binder according to some embodiments.
4 is a graph showing temperature according to location in an aerosol-generating article in accordance with some embodiments.
5 is a flowchart of a method of making an aerosol-generating article having a heat transfer portion in accordance with some embodiments.

The terminology used in the present embodiments is to select general terms that are widely used as far as possible in consideration of the functions in the present embodiments, but this may vary according to the intention or precedent of the person skilled in the art, the emergence of new technology, etc. have. In addition, in certain cases, there is a term arbitrarily selected by the applicant, and in this case, the meaning thereof will be described in detail. Therefore, the terms used in the present embodiments should be defined based on the meanings of the terms and the contents throughout the embodiments, rather than simply names of the terms.

Throughout the specification, when a part is connected to another part, this includes not only a case where the part is directly connected, but also a case where the part is electrically connected with another element in between. In addition, when a part includes a certain component, this means that the component may further include other components, not to exclude other components unless specifically stated otherwise.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention. As those skilled in the art would realize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention.

In the present embodiments, "aerosol generating material" means a material capable of generating an aerosol and may mean an aerosol-forming substrate. Aerosols can include volatile compounds. The aerosol generating material may be solid or liquid.

For example, solid aerosol generating materials may include solid materials based on tobacco raw materials such as leaf tobacco, vinegar, reconstituted tobacco, and liquid aerosol generating materials based on nicotine, tobacco extracts and various flavoring agents. It may include a liquid substance. Of course, it is not limited to the above example.

In the present embodiments, an “aerosol generating device” may be a device that generates an aerosol using an aerosol generating material to generate an aerosol that can be directly inhaled into the user's lungs through the user's mouth. For example, the aerosol generating device may be a holder that can be held by a user.

Hereinafter, exemplary embodiments will be described in detail with reference to the accompanying drawings.

1 illustrates an article producing an aerosol in accordance with some embodiments.

Referring to FIG. 1, the aerosol generating article 100 may include an aerosol generating material 110, an intermediate structure 120, a cooling structure 130, a filter segment 140, and a packaging 150.

The aerosol generating material 110 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 material 110 may have a long elongated rod form, and the length may vary. For example, the length of the aerosol generating material 110 may be 7 to 15 millimeters, but is not limited thereto. In some examples, the aerosol generating material 110 may be about 12 millimeters. In addition, the diameter of the aerosol generating material 110 may be 7 to 9 millimeters, but is not limited thereto. In some examples, the diameter of the aerosol generating material 110 may be about 7.9 millimeters.

Optionally, the aerosol generating material 110 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.

For example, after grinding the tobacco raw material, the solvent and various additives are mixed to form a slurry, and then the slurry may be dried to form a sheet. Thereafter, the sheet can be processed to form a plurality of tobacco material strands.

For example, the aerosol generating material 110 may comprise a plurality of tobacco material strands, each of which is 10 to 14 millimeters in length (eg 12 millimeters) and 0.8 to 1.2 millimeters in width (eg For example 1 millimeter) and a thickness of 0.08 to 0.12 millimeters (for example 0.1 millimeters). However, the length, width and thickness of the tobacco material strands are not limited to the above examples.

Since the aerosol generating material 110 includes a plurality of strand materials processed in the form of a wide tobacco sheet, the density of the tobacco material filled in the aerosol generating material 110 may be increased. Accordingly, the aerosol generated from the aerosol generating material 110 can be increased, and the manufacturing characteristics of the aerosol generating material 110 can be improved.

The filter segment 140 may be disposed in parallel with the aerosol generating material 110 and passes through the filter segment 140 just before the aerosol material generated in the aerosol generating material 110 is inhaled by the user.

The filter segment 140 may be formed of various materials, for example, may include cellulose acetate. The filter segment 140 may be made of a cylindrical filter, a tubular filter including a hollow, or a recessed filter, but is not limited thereto. For example, the length of the filter segment 140 may be 5 millimeters to 15 millimeters, but is not limited thereto.

In addition, the filter segment 140 may include at least one capsule (not shown). The capsule (not shown) provided in the filter segment 140 may have a structure in which a liquid containing a fragrance is wrapped in a film, and may have, for example, a spherical or cylindrical shape.

In addition, the material forming the film of the capsule (not shown) provided in the filter segment 140 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. 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 intermediate structure 120 may be disposed between the filter segment 140 and the aerosol generating material 110 and may be disposed adjacent to the aerosol generating material 110, for example. The intermediate structure 120 may be formed of various materials, for example, may include cellulose acetate. In addition, the intermediate structure 820 may be in the form of a tube including a hollow therein, but is not limited thereto.

The length of the intermediate structure 120 may be between about 7 millimeters and 15 millimeters, and optionally, about 7 millimeters. In addition, the length of the intermediate structure 120 may be variously set, and the length of the entire aerosol generating material 110 may be changed according to the length of the intermediate structure 120.

The cooling structure 130 may be disposed between the aerosol generating material 110 and the filter segment 140, and specifically, between the intermediate structure 120 and the filter segment 140. For example, the cooling structure 130 may be in contact with the intermediate structure 120 and the filter segment 140.

The cooling structure 130 may cool the aerosol generated from the aerosol generating material 110. For example, when the aerosol generating article 100 is inserted into an aerosol generating apparatus and used by a user, the aerosol generated from the aerosol generating material 110 heated by the heater may be cooled. Thus, the user can inhale an aerosol of a suitable and safe temperature that is not too high.

The length of the cooling structure 130 may be 10 millimeters to 20 millimeters, and optionally, 14 millimeters, but is not limited thereto.

The cooling structure 130 may be formed of various materials, and for example, may contain polylactic acid (PLA).

Cooling structure 130 may be manufactured in a variety of ways, for example, may be fabricated (eg, woven) using fibers containing polylactic acid. In this case, the risk that the cooling structure 130 is deformed or lost its function by external shock may be lowered. In addition, as the method of combining the fibers is changed, the cooling structure 130 having various shapes may be manufactured.

In addition, by making the cooling structure 130 using the fibers, the surface area in contact with the aerosol can be increased. Thus, the aerosol cooling effect of the cooling structure 130 can be further improved.

The packaging material 150 may be formed to surround the aerosol generating material 110, the intermediate structure 120, the cooling structure 130, and the filter segment 140 described above. The packaging material 150 may be composed of a plurality of distinct packaging materials. For example, each of the plurality of distinct packaging materials may be formed to enclose each of the aforementioned aerosol generating material 110, intermediate structure 120, cooling structure 130 and filter segment 140. However, this is only an example, and the present invention is not limited thereto. The packaging material 150 may be made of a paper packaging material having oil resistance, or may be made of a general paper packaging material.

2 illustrates an aerosol-generating article that includes a heat transfer portion in accordance with some embodiments.

Referring to FIG. 2, the aerosol-generating article 200 may include a heat transfer part 210, a medium part 220, a mouthpiece part 230, and a packing material 240. One side of the medium portion 220 may be connected to the heat transfer part 210 and the other side may be connected to the mouthpiece part 230.

The heat transfer unit 210 may receive heat from an external heating device and transfer heat to the medium unit 220. The heat transfer part 210 may include a structure particle and a binder including carbon. The structure particles and the binder may form a point adhesive, and the binder may adhere to the surface of the structure particles to support the bonding between the structure particles.

The pore may be formed between the structure particles by the point adhesion of the structure particles and the binder, and the adhesion made in the form of dots may be formed more pores between the structure particles than the adhesion made in the form of lines. According to an embodiment, when the structure particles and the binder are adhesively bonded, porosity of the heat transfer part 210 may be improved. If the porosity is improved, the suction resistance of the heat transfer unit 210 may be reduced.

The medium unit 220 may include solid particles and a heat transfer material. Solid particles may comprise volatile compounds. Volatile compounds may be released from solid particles upon heating to produce aerosols. The heat transfer material may be mixed between the solid particles to transfer the heat received from the heat transfer unit 210 to the solid particles.

For example, heat transfer may also occur between the solid particles. The heat transfer material may improve the heat transfer efficiency of the medium unit 220.

The mouthpiece part 230 may include an area through which the aerosol generated in the medium part 220 passes immediately before being inhaled by the user. The mouthpiece part 230 may be formed of various materials, for example, may include cellulose acetate. In addition, the mouthpiece portion 230 may be made of a recess filter including a hollow, but is not limited thereto.

The packaging material 240 may be formed to surround the aforementioned heat transfer part 210, the medium part 220, and the mouthpiece part 230. The packaging material 240 may be composed of a plurality of distinct packaging materials. For example, each of the plurality of distinct packaging materials may be formed to surround each of the heat transfer part 210, the medium part 220, and the mouthpiece part 230. However, this is only an example, and the present invention is not limited thereto. The packaging material 240 may be made of a paper packaging material having oil resistance, or may be made of a general paper packaging material.

Referring to FIGS. 1 and 2, the aerosol generating article 200 of FIG. 2 does not include a cooling structure, unlike the article 100 generating the aerosol of FIG. 1. The aerosol-generating article 200 of FIG. 2 includes a heat transfer part 210, and heat is transferred to the medium part 220 by the heat transfer part 210 to control the temperature, thereby cooling separately. May not require structures.

FIG. 3 is a view for explaining a process of forming pores between structure particles through point bonding between structure particles including carbon and a binder according to some embodiments.

Referring to FIG. 3, the aerosol generating structure may include structure particles 300 including a carbon component 330 and a binder 310. The carbon component 330 may include a material that is released from the structure particles 300 upon heating to form an aerosol.

As an example, the structure particles 300 may be stranded reconstituted tobacco particles. Alternatively, the plurality of structure particles 300 are pulverized tobacco raw material and then mixed with a solvent and various additives to form a slurry and dried to form a sheet, and then processed such sheets to reconstituted tobacco having a piece such as a rod It may include a substance.

According to some embodiments, pores 320 may be formed between the solid particles 300 by a binder 310 that is point-bonded to the surface of the structure particles 300.

Depending on the various shapes of the structure particles 300, the porosity formed for the same portion of the binder 310 may vary. For example, the structured particle 300, which is the stranded reconstituted tobacco material of FIG. 3, may have a higher porosity than the solid particles 200, which is the granular reconstituted tobacco material of FIG. 2.

Based on 100 parts by weight of the structure particles 300, it may be preferable that the binder 310 forms a point adhesive at a ratio having 10 to 35 parts by weight.

When the weight part of the binder 310 is greater than or equal to 35 parts by weight with respect to 100 parts by weight of the structure particles 300, even when the amount of the binder 310 is increased, adhesion may hardly be improved. In addition, when the weight part of the binder 310 is greater than 35 parts by weight based on 100 parts by weight of the structure particles 300, the total volume may be increased by the binder 310, and the ratio of the pores 320 may be reduced. have. Accordingly, the suction resistance of the aerosol generating structure can be increased. In addition, since the surface of the structure particles 300 is covered with the binder 310, the adsorption rate between the binder 310 and the structure particles 300 may be rapidly reduced.

On the other hand, when the weight part of the binder 310 is 10 parts by weight or less with respect to 100 parts by weight of the structure particles 300, the strength of adhesion formed by the structure particles 300 and the binder 310 is lowered, the structure particles 300 May not be properly bound with the binder 310.

The point adhesion between the structure particles 300 and the binder 310 may have the advantage of forming a high porosity in a small volume. In addition, the porosity of the structure particles 300 may be increased by using a small amount of the binder 310, and the hardness of the structure particles 300 may be improved.

For example, based on 100 parts by weight of the structure particles 300, when the binder 310 maintains a weight part ratio between the binder 310 and the structure particles 300 at a rate such that the binder 310 has 10 to 35 parts by weight, an aerosol is generated. The suction resistance of the structure may be 50 mmH ₂ O / 30 mm or less. In addition, since the binder 310 forms a point bond with the solid particles, the hardness of the aerosol generating structure may be improved by 90% or more.

The binder 310 may include at least one of carboxymethyl cellulose, hydroxypropyl methylcellulose, pullulan, and starch.

In addition, although not shown in the drawings, the pores 320 between the structure particles 300 may include a heat transfer material.

The heat transfer material may transfer heat to the solid particles upon heating of the aerosol generating structure, thereby increasing the heat transfer efficiency of the aerosol generating structure. For example, the heat transfer efficiency of the aerosol generating structure including the heat transfer material may be increased by 2% compared to the aerosol generating structure not including the heat transfer material.

The heat transfer material may include at least one of activated carbon, carbon nanotubes, graphene, and a polymer substrate having a thermal conductivity of 0.1 W / mK or more. Or a metal material having a thermal conductivity of 10.0 W / mK or more, such as iron, nickel, aluminum, copper, and stainless steel.

4 is a graph showing temperature according to location in an aerosol-generating article in accordance with some embodiments.

Referring to FIG. 4, the position in the aerosol-generating article may include an end portion of the heat transfer portion, one side of the medium in contact with the medium portion and the heat transfer portion, the other side of the medium portion in contact with the medium portion and the mouthpiece portion, and an end portion of the mouthpiece portion.

The end of the heat transfer portion receiving heat from the external heating device may be heated from 250 ° C. to 350 ° C. As heat is transferred from the heat transfer part to the medium part, one side of the medium part in contact with the heat transfer part and the medium part may have a temperature range of about 220 ° C. to about 320 ° C. As the user aspirates the aerosol-generating article, heat may be transferred from the medium portion toward the mouthpiece portion, away from the heat transfer portion, and as the temperature approaches the mouthpiece portion. Accordingly, the other side of the medium portion in contact with the medium portion and the mouthpiece portion may have a temperature range of about 70 ° C to 100 ° C. In addition, the temperature may be further reduced through the mouthpiece portion and thus the end of the mouthpiece portion may have a temperature range of 40 ° C to 70 ° C.

Since the heat transfer portion is composed of the carbon component, it can be heated to a high temperature in a short time from the external heating device. The temperature of heat generated from the heated heat transfer portion may be reduced as it travels through the aerosol-generating article and may be reduced to a temperature suitable for the user to draw upon reaching the mouthpiece portion.

Aerosol-generating articles that include a heat transfer portion that receives heat from an external heating device may not require a cooling structure.

5 is a flowchart of a method of making an aerosol-generating article having a heat transfer portion in accordance with some embodiments. The method of making an aerosol generating article may be performed by an apparatus for making an aerosol generating article. Those skilled in the art will appreciate that the device for making an aerosol-generating article may be any device commonly used in the art to make an aerosol-generating article.

Referring to FIG. 5, in operation S500, the apparatus for manufacturing an aerosol-generating article may form a heat transfer part by mixing a binder with structure particles.

When the apparatus for making an aerosol-generating article mixes the structure particles and the first binder, pores may form between the structure particles as the first binder is point bonded to the surface of the structure particles. The structure included in the heat transfer part includes a carbon component and can be quickly heated to a high temperature in a short time. In addition, the porosity between the structure particles may be increased by the point bonding of the first binder and the structure particles, and thus the suction resistance of the heat transfer unit may be reduced.

In operation S510, the apparatus for manufacturing the aerosol-generating article may mix the solid particles and the heat transfer material to form a medium portion. The medium portion may further include a second binder that supports the solid particles by adhesively bonding the surface of the solid particles to form pores between the solid particles. As the second binder supports the solid particles, the relative position between the solid particles or the ratio of pores formed between the solid particles can be maintained.

In operation S520, the apparatus for manufacturing an aerosol-generating article may be packaged in an outer packaging material by connecting a heat transfer part, a medium part, and a mouthpiece part.

An apparatus for making an aerosol-generating article may produce a mouthpiece portion. The mouthpiece portion may include an area through which the aerosol generated in the medium portion passes just before being inhaled by the user. The mouthpiece portion can be produced by any suitable method that can be selected by one skilled in the art.

The apparatus for manufacturing an aerosol-generating article can produce an aerosol-generating article by connecting one side of the medium portion to the heat transfer portion, the other side of the medium portion to the mouthpiece portion, and packaging their connecting structure with an outer packaging material. .

An aerosol-generating article comprising a heat transfer unit according to the present disclosure may not include a separate cooling structure. In addition, the porosity may be improved as the particles of the heat transfer part and the medium part form the point adhesive with the binder, and thus the suction resistance of the heat transfer part may be reduced.

Those skilled in the art will appreciate that the present invention may be embodied 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 invention is shown in the claims rather than the foregoing description, and all differences within the scope will be construed as being included in the present invention.

Claims (9)

A heat transfer part including a structure particle including carbon and a binder adhered to a surface of the structure particle to support the structure particles so that pores are formed between the structure particles; And
And a media portion comprising solid particles producing an aerosol and a heat transfer material mixed with the solid particles to transfer heat to the solid particles. The method of claim 1,
The medium portion
And a binder adhered to the surface of the solid particles to support the solid particles such that pores are formed between the solid particles. The method of claim 1,
The binder comprises one of carboxymethyl cellulose, hydroxypropyl methylcellulose, pullulan and starch. The method of claim 1,
The structure particle is an aerosol-generating article comprising any one of activated carbon, carbon nanotubes, graphene, a polymer substrate having a thermal conductivity of 0.1 W / mK or more, and a metal material having a thermal conductivity of 10.0 W / mK or more. . The method of claim 1,
The heat transfer material generates an aerosol comprising any one of activated carbon, carbon nanotubes, graphene, a polymer substrate having a thermal conductivity of 0.1 W / mK or more, and a metal material having a thermal conductivity of 10.0 W / mK or more. article. The method of claim 1,
One side of the medium portion is connected to the heat transfer portion, further comprising a mouthpiece portion connected to the other side of the medium portion,
When heat in a temperature range of 250 ° C to 350 ° C is applied to an end portion of the heat transfer part, a temperature range of a portion where the heat transfer part and the medium part contact each other is 220 ° C to 320 ° C, and the medium part and the mouthpiece part contact each other. The temperature range of the portion is 70 ° C. to 100 ° C., and the temperature range of the end of the mouthpiece portion is 40 ° C. to 70 ° C. Adhering a binder to a surface of the structure particles including carbon to form a heat transfer part by mixing the structure particles and the binder such that pores are formed between the structure particles;
Mixing a solid particle that produces an aerosol and a heat transfer material that transfers heat to the solid particle to form a medium portion; And
And connecting the heat transfer part and the medium part to surround the outer packaging material. The method of claim 7, wherein
Forming the medium portion,
And mixing the binder together such that a binder is attached to a surface of the solid particles to form pores between the solid particles. The method of claim 7, wherein
And a suction resistance of the mixture of the structure particles and the binder is 50 mmH 2 O / 30 mm or less.

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