KR20230049788A - Aerosol generating article and aerosol generating device used with the same - Google Patents

Abstract

An aerosol generating article according to one embodiment of the present invention comprises: a first filter segment comprising an aerosol generating material; a second filter segment; and a granule segment disposed between the first filter segment and the second filter segment and comprising granules containing tobacco powder and a pH regulator, wherein the first filter segment and the second filter segment may each be disposed adjacent to each both end parts of the granule segment. Therefore, the present invention is capable of providing the aerosol generating article capable of delivering nicotine even if the segment comprising the tobacco is not heated.

Description

Aerosol generating article and aerosol generating device used therewith {AEROSOL GENERATING ARTICLE AND AEROSOL GENERATING DEVICE USED WITH THE SAME}

The present invention relates to aerosol-generating articles and aerosol-generating devices used therewith. More particularly, it relates to aerosol-generating articles heated at low temperatures and aerosol-generating devices used therewith.

Recently, a demand for a heated aerosol generating device that generates aerosol by heating an aerosol generating article such as a cigarette-type stick or cartridge with a heater to provide a cigarette flavor to a user has increased. Accordingly, research on an aerosol-generating article used together with a heated aerosol-generating device is also being actively conducted.

As a tobacco material used in such aerosol-generating articles, a method of using a substance in the form of granules containing tobacco powder has been proposed. In addition, there is an effort to provide an aerosol-generating article capable of transferring nicotine even when unheated by changing the physical properties of tobacco substances.

On the other hand, in general, a cigarette stick has a configuration such as a filter, tobacco material, a cooling member, and a mouthpiece. These cigarette-type sticks are disposable sticks that are usually discarded after use, and it is desirable to reduce costs and minimize waste by minimizing the configuration.

Republic of Korea Patent Publication No. 10-2018-0070450

One of the objects of the present invention is to provide an aerosol-generating article and an aerosol-generating device used therewith capable of delivering nicotine even when a segment comprising a cigarette is not heated.

Another object of the present invention is to provide an aerosol-generating article and an aerosol-generating device used therewith which provide uniform nicotine delivery at a high content when heated at a low temperature.

Another object of the present invention is to provide an aerosol-generating article capable of reducing costs and minimizing waste and an aerosol-generating device used therewith.

In order to solve the above problems, the present invention, as an embodiment, a first filter segment comprising an aerosol generating material; a second filter segment; and a granule segment disposed between the first filter segment and the second filter segment and comprising granules containing tobacco powder and a pH adjusting agent; wherein the first filter segment and the second filter segment are each disposed adjacent each of opposite ends of the granular segment.

In the aerosol-generating article, the first filter segment may include a pleated paper filter impregnated with the aerosol-generating material.

In the aerosol-generating article, the aerosol-generating material may include at least one of glycerin and propylene glycol.

In the aerosol-generating article, the pH adjusting agent may include at least one of potassium carbonate and sodium hydrogen carbonate.

The aerosol-generating article comprising: a first wrapper surrounding at least a portion of each of the first filter segment, the second filter segment and the granule segment; The granules may be disposed in a hollow between the first filter segment and the second filter segment, and the first wrapper may surround the hollow to contain the granules.

In the aerosol-generating article, the first filter segment may further include a second wrapper surrounding the pleated paper, and the thermal conductivity of the second wrapper may be higher than that of the first wrapper.

In the aerosol-generating article, the first wrapper may be sterile paper (MFW), and the second wrapper may be aluminum foil.

In the aerosol-generating article, the second filter segment may include at least one of a paper filter and a cellulose acetate filter.

In addition, in order to solve the above problems, the present invention, as another embodiment, the receiving portion into which the aerosol generating article is inserted; a heating unit for heating the first filter segment of the aerosol-generating article inserted into the accommodating unit; and a mouthpiece portion; It is possible to provide an aerosol generating device comprising a.

In the aerosol generating device, the heating unit may heat the first filter segment to a temperature of 180°C to 240°C.

In the aerosol-generating device, heat of 50° C. to 150° C. may be transferred from the heating part to the granules of the aerosol-generating article inserted into the containing part.

In the aerosol-generating device, the heating portion may surround an area between one end and the other end of the first filter segment of the aerosol-generating article inserted into the receptacle.

As one effect of the present invention, it is possible to provide an aerosol-generating article and an aerosol-generating device capable of transferring nicotine even when a segment including cigarettes is not heated.

As another effect of the present invention, it is possible to provide an aerosol-generating article and an aerosol-generating device used together with the aerosol-generating article that provides uniform transfer of nicotine at a high content by heating at a low temperature.

As another effect of the present invention, it is possible to provide an aerosol-generating article and an aerosol-generating device capable of reducing costs and minimizing waste.

1 is a schematic diagram of an aerosol-generating article according to one embodiment.
2 is an exploded view and cross-sectional view of a first filter according to an embodiment.
3 is a cross-sectional view of an aerosol-generating article according to one embodiment.
4 is a cross-sectional view of an aerosol-generating device according to one embodiment.
5 is a cross-sectional view illustrating a heating region of a heater unit of an aerosol generating device according to an exemplary embodiment.

With reference to the following description and accompanying drawings, embodiments of the present invention will be described in detail. However, the examples provided through the following description and accompanying drawings are intended to aid understanding of the present invention, and are not intended to limit the embodiments of the present invention to the examples. Accordingly, the foregoing embodiments should be construed as illustrative and not limiting.

In addition, all or some of the components may be exaggerated or reduced in the drawings for convenience of description. In addition, some components may be omitted.

1 is a schematic diagram of an aerosol-generating article according to one embodiment.

2 is a plan view and cross-sectional view of a first filter according to an embodiment.

3 is a cross-sectional view of an aerosol-generating article according to one embodiment.

An aerosol-generating article 100 according to one embodiment includes a first filter segment 110 , a second filter segment 120 and a granule segment 130 . Additionally, the aerosol-generating article 100 may include at least one wrapper.

The first filter segment 110 and the second filter segment 120 are disposed spaced apart from each other, and the granule segment 130 is a hollow formed between the first filter segment 110 and the second filter segment 120 ( h) may be an area. Therefore, each end of the first filter segment 110 and the second filter segment 120 may be disposed at both ends of the granule segment 130 .

The first filter segment 110 and the second filter segment 120 may be disposed adjacent to both ends of the granule segment 130, respectively. In other words, the segments included in the aerosol-generating article 100 are arranged in the order of the first filter segment 110, the second filter segment 120, and the granule segment 130, with no other segments intervening between these segments. may not be

During smoking, airflow moves from the first filter segment 110 toward the second filter segment 120 . Accordingly, the aerosol generated in the first filter segment 110 passes through the first filter segment 110, the granule segment 130, and the second filter segment 120 in order. Accordingly, the user may inhale the aerosol discharged through the second filter segment 120 .

The first filter segment 110 contains an aerosol-generating substance. Specifically, the first filter segment 110 includes the first filter 111, and the aerosol generating material may be impregnated in the first filter 111.

Referring to FIG. 2 , the first filter 111 may be formed by rolling a wrinkled paper filter. Through this, the surface area of the first filter 111 can be increased, and the absorption and adsorption of the aerosol generating material to the first filter 111 is increased to increase the amount of the aerosol generating material impregnated into the first filter 111. can increase

The aerosol-generating material may include at least one of glycerin and propylene glycol. For example, the aerosol-generating material may include glycerin and propylene glycol in a weight ratio of 100:00 to 80:20. However, it is not limited thereto, and for example, the aerosol generating material may include at least one of ethylene glycol, dipropylene glycol, diethylene glycol, triethylene glycol, tetraethylene glycol, and oleyl alcohol.

The aerosol-generating substance is impregnated in an amount of 1 mg or more, 2 mg or more, 3 mg or more, or 4 mg or more based on the first filter 111 having a length of 1 mm, a width of 150 mm, and a basis weight of 60 g/m ² . It can be. In addition, the aerosol-generating substance is 10 mg or less, 9 mg or less, 8 mg or less, 7 mg or less based on the first filter 111 having a length of 1 mm, a width of 150 mm, and a basis weight of 60 g/m ² can be impregnated with For example, the aerosol-generating substance may be present in an amount of 1 mg to 10 mg, 2 mg to 9 mg, or 3 mg to 8 mg based on the first filter 111 having a length of 1 mm, a width of 150 mm, and a basis weight of 60 g/m ² . mg or 4 mg to 7 mg. Preferably, the aerosol-generating material may be impregnated in an amount of 4 mg to 7 mg based on the first filter 111 having a length of 1 mm, a width of 150 mm and a basis weight of 60 g/m ² . In this case, the first filter 111 having a length of 1 mm, a width of 150 mm, and a basis weight of 60 g/m ² may have a circumference of 22 mm after drying, but is not limited thereto. By containing the aerosol-generating material within the above-mentioned range, it may have an effect of generating an aerosol for transferring nicotine by heating only the first filter 111.

In addition, the first filter segment 110 may further include other materials. For example, a flavoring agent may be further included.

The first filter segment 110 is heated by a heating unit 220 to be described later, and aerosol and/or atomization (visible smoke) may be generated through heating. The generated aerosol and/or atomization can be delivered to the granule segment 130 to uniformly deliver a high nicotine content. At this time, the first filter segment 110 may be heated to a temperature of 180 °C or higher, 190 °C or higher, 200 °C or higher, or 205 °C or higher. In addition, the first filter segment 110 may be heated to a temperature of 240 °C or less, 230 °C or less, 220 °C or less, or 215 °C or less. For example, the first filter segment 110 may be heated to a temperature of 180 °C to 240 °C, 190 °C to 230 °C, 200 °C to 220 °C, or 205 °C to 215 °C. Within this temperature range, aerosol and/or atomization may be effectively generated in the first filter segment 110, and heat of an appropriate temperature may be transferred to the granules 131.

Therefore, the first filter 111 is preferably formed of a material that is not deformed or denatured when heated. For example, the first filter 111 may be a paper filter. This is because paper, which is a material included in the paper filter, hardly undergoes deformation or denaturation when heated. From a similar point of view, the first filter 111 may not be a cellulose acetate filter. This is because cellulose acetate fibers, which are materials included in the cellulose acetate filter, may shrink or melt when heated above a certain temperature. However, when the first filter segment 110 is heated within a temperature range at which the cellulose acetate fibers are not deformed, a cellulose acetate filter may be used as the first filter 111 .

The first filter segment 110 may further include a first wrapper 112 surrounding the first filter 111 . The first wrapper 112 may serve to fix the first filter 111 .

The first wrapper 112 may be formed of a thermally conductive material. The thermal conductivity of the first wrapper 112 may be higher than that of the third wrapper 140 . For example, the first wrapper 112 may include at least one of aluminum (Al), copper (Cu), gold (Au), silver (Ag), and platinum (Pt). The first wrapper 112 may be in the form of a thin film (foil). More specifically, the first wrapper 112 may be an aluminum foil. By forming the first wrapper 112 with a thermally conductive material, heat may be efficiently transferred from the heating unit 220 to the first filter 111 . In addition, heat can be evenly transferred to each area of the first filter 111 . However, if necessary, the first wrapper 112 may be formed of paper or the like.

The length of the first filter segment 110 may be 5 mm or more, 5.5 mm or more, 6 mm or more, 6.5 mm or more, or 7 mm or more. In addition, the length of the first filter segment 110 may be 10 mm or less, 9.5 mm or less, 9 mm or less, 8.5 mm or less, or 8 mm or less. For example, the length of the first filter segment 110 may be 5 mm to 8 mm, 5.5 mm to 7.5 mm, 6 mm to 7 mm, and more specifically, 7 mm. In this specification, "length" means the length in the direction from the first filter segment 110 to the second filter segment 120.

The first filter segment 110 may have a cylindrical shape. In this case, the diameter of the segment of the first filter 110 may be 6 mm or more, 6.5 mm or more, or 7 mm or more. Also, the diameter of the segment of the first filter 110 may be 9 mm or less, 8.5 mm or less, or 8 mm or less. For example, the diameter of the segment of the first filter 110 may be 6 mm to 9 mm, 6.5 mm to 8.5 mm, or 7 mm to 8 mm, and more specifically, 7.2 mm. Here, the diameter may be a length on a plane perpendicular to the longitudinal direction.

The second filter segment 120 includes a second filter 121 .

As the material for forming the second filter 121, materials used as filters in the art may be used without limitation. For example, the second filter 121 may be at least one of a paper filter and a cellulose acetate filter. Since the second filter segment 120 does not require heating unlike the first filter segment 110, the material for forming the second filter 121 may not be particularly limited. When the second filter 121 is a cellulose acetate filter, it may have a high removal capacity.

Also, the second filter segment 120 may further include other materials. For example, a flavoring agent may be further included.

The second filter segment 120 may further include a second wrapper 122 surrounding the second filter 121 . As a material for forming the second wrapper 122, materials used as wrappers in the art may be used without limitation, and for example, the second wrapper 122 may be paper or metal foil.

The length, shape and/or diameter of the second filter segment 120 may be the same as or different from the length, shape and/or diameter of the first filter segment 110 . For example, each of the first filter segment 110 and the second filter segment 120 may have a cylindrical shape having a length of 7 mm and a diameter of 7.2 mm, but is not limited thereto.

The granule segment 130 is disposed between the first filter segment 110 and the second filter segment 120 and includes granules 131 . Specifically, in the granule segment 130 , the granule 131 may be disposed in the hollow h between the first filter segment 110 and the second filter segment 120 . At this time, the third wrapper 140 to be described later surrounds the hollow h to enclose the granules 131, and thus the granules 131 leak out of the aerosol-generating article 100 by the third wrapper 140. It can be stuck in the hollow (h) without going out. However, the granule segment 130 may further include a separate wrapper enclosing the granule 131 by surrounding the hollow h.

Granules 131 contain tobacco powder and a pH adjusting agent. In addition, the granules 131 may further include water, a binder, a moisturizer, and the like in addition to tobacco powder and a pH adjusting agent.

Tobacco powder may be tobacco fines, and the tobacco powder may include pulverized tobacco leaves, pulverized tobacco stems, pulverized reconstituted tobacco, and the like. Tobacco powder may be used as a raw material for yellow species, burley species, orient species, planar leaves, expanded bark, and expanded stems.

The pH adjusting agent may adjust the pH of the granules 131 to the alkaline side. The pH of the tobacco powder used in the granules 131 may be 5.0 or more and 6.0 or less, and the pH of the granules 131 may be adjusted to 7.0 or more, 7.5 or more, 8.0 or more, or 8.5 or more by containing a pH adjusting agent. In addition, the pH of the granules 131 may be adjusted to 10.0 or less, 9.5 or less, 9.0 or less, or 8.5 or less. For example, the pH of the granules 131 may be 7.0 to 10.0, 7.0 to 9.5, 7.0 to 9.0, 7.5 to 10.0, or 8.0 to 10.0. Preferably, the pH of the granules 131 may be 7.0 to 9.0. The pH adjusting agent may include at least one of potassium carbonate and sodium bicarbonate, but is not limited thereto.

As such, the pH adjusting agent may promote flavor release of tobacco from the granules 131 by adjusting the pH of the granules 131 to an alkaline side. Therefore, even when the granules 131 are not heated, nicotine can be transferred, as in the case where the granules 131 are heated.

The binder may maintain the integrity of the granules 131 to control the overall particle size and improve surface properties. The binder may include at least one of hydroxypropyl cellulose, hydroxypropyl methylcellulose (HPMC), gum, pullulan, carboxymethyl cellulose, and starch, but is not limited thereto. However, the granules 131 may not include a binder.

The humectant may prevent the granules 131 from drying out, maintain moisture in the granules 131, soften the flavor of tobacco, and enrich the amount of smoke. The humectant may include at least one of glycerin, propylene glycol, ethylene glycol, diethylene glycol, dipropylene glycol, sorbitol, and oleyl alcohol, but is not limited thereto.

However, the granules 131 may not include a moisturizing agent. For example, where the aerosol-generating substance of the first filter segment 110 is capable of generating a rich aerosol and/or atomization, the granules 131 may not include a moisturizer. However, even in this case, the granules 131 may include a moisturizing agent for other effects such as softening the flavor of tobacco or improving a user's satisfaction.

As the first filter segment 110 is heated by the heating unit 220, heat is transferred to the granules 131. The temperature of the heat delivered to the granules 131 may be 150 °C or less. More specifically, the temperature of the heat transferred to the granules 131 may be 150 °C or less, 140 °C or less, 130 °C or less, 120 °C or less, or 110 °C or less. In addition, the temperature of the heat transferred to the granules 131 may be 50 °C or higher, 60 °C or higher, 70 °C or higher, 80 °C or higher, or 90 °C or higher. For example, the temperature of the heat transferred to the granules 131 may be 50 °C to 150 °C, 60 °C to 140 °C, 70 °C to 130 °C, 80 °C to 120 °C, or 90 °C to 110 °C. Within this temperature range, a high content of nicotine can be uniformly transferred together with the aerosol. However, the appropriate temperature of the heat delivered to the granules 131 may vary depending on the pH of the granules 131, the amount of aerosols generated, and the filling rate of the granules 131.

In one embodiment, the particle size of the granules 131 may be 0.2 mm or more, 0.3 mm or more, or 0.4 mm or more. In addition, the granule 131 may have a particle size of 1.14 mm or less, 1.13 mm or less, or 1.12 mm or less. For example, the particle size of the granules 131 may be 0.2 mm to 1.14 mm, 0.3 mm to 1.13 mm, or 0.4 mm to 1.12 mm. Preferably, the particle size of the granules 131 may be 0.4 mm to 1.12 mm. When the particle size of the granules 131 is less than 0.2 mm, scattering of the granules 131 may occur when the hollows h are filled with the granules 131, and the first filter 110 by the scattered granules 131, A component of the aerosol-generating article 100, such as the second filter 120, may be contaminated. In addition, when the particle size of the granules 131 is greater than 1.14 mm, a sufficient amount of the granules 131 may not be filled in the hollow h due to an increase in weight and volume of the granules 131 .

On the other hand, granules may be formed in various particle sizes during manufacture, but by filtering the granules through a mesh and selecting and using only granules having a particle size of 0.2 mm or more and 1.14 mm or less, the granules (131) included in the aerosol-generating article 100 ) can be controlled within the above range. For example, granules having a particle size of 0.2 mm or more are primarily screened with a mesh having a first size among the formed granules, and granules having a particle size of 1.14 mm or less are secondarily screened with a mesh having a second size among the selected granules to obtain a particle size of 0.2 mm. It may be to select granules having a size of 1.14 mm or less. However, the method for screening granules is not limited thereto.

In one embodiment, the hardness of the granules 131 may be 80% or more. The hardness of the granules 131 may preferably be greater than 85%, 90% or 95%. Within this numerical range, the ease of manufacture of the granules 131 is improved, and the crumb phenomenon is minimized, so that the ease of manufacture of the aerosol-generating article 100 can also be improved.

In one embodiment, the granules 131 have a density of 0.4 g/cm ³ or more, 0.45 g/cm ³ or more, 0.5 g/cm ³ or more, 0.55 g/cm ^{3 or} more, or 0.6 g/cm ^{3 or} more in the hollow (h). can be placed. In addition, the granules 131 are disposed in the hollow (h) at a density of 1.2 g/cm ³ or less, 1.15 g/cm ³ or less, 1.1 g/cm ^{3 or} less, 1.05 g/cm ^{3 or} less, or 1.0 g/cm ^{3 or} less. It can be. For example, the granule 131 has a density of 0.4 g/cm ³ to 1.2 g/cm ³ , 0.5 g/cm ³ to 1.1 g/cm ³ , or 0.6 g/cm ³ to 1 g/cm ³ in the hollow (h). can be placed as If the density of the granules 131 is less than 0.4 g/cm ³ , a sufficient amount of nicotine may not be provided, which may reduce user satisfaction, and if the density of the granules 131 is 1.2 g/cm ³ , the efficiency of the production rate It may be undesirable in terms of degradation, limitations of production facilities, and cost increase.

In one embodiment, the granules 131 may be disposed in the hollow (h) at a filling rate of 70 vol%, 65 vol%, 60 vol%, or 55 vol% or less. In addition, the granules 131 may be disposed in the hollow h at a filling rate of about 50% by volume, 55% by volume, 60% by volume, or 65% by volume or more. If the filling rate of the granules 131 is less than 50% by volume, a sufficient amount of nicotine may not be provided, which may reduce the user's satisfaction, and if the filling rate of the granules 131 exceeds 70% by volume, the efficiency of production rate decreases, production equipment It may be undesirable in terms of limitations, cost increase, etc.

The third wrapper 140 surrounds at least a portion of each of the first filter segment 110 , the second filter segment 120 and the granule segment 130 . In particular, the wrapper 140 may contain the granules 131 by surrounding the hollow h. Therefore, the granules 131 disposed in the hollow (h) do not leak out of the aerosol-generating article 100 by the third wrapper 140 and the hollow (h) between the first filter 110 and the second filter 120 ) can be trapped.

Specifically, the third wrapper 140 surrounds the hollow h and further surrounds at least a portion of each of the first filter 110 and the second filter 120 . For example, as shown in the drawing, the third wrapper 140 surrounds the hollow h, and may further surround all of each of the first filter segment 110 and the second filter segment 120. At this time, the third wrapper 140 may surround the first filter segment 110 and the second filter segment 120 by surrounding the first wrapper 112 and the second wrapper 122 . On the other hand, when the granule segment 130 further includes a separate wrapper enclosing the granule 131 by surrounding the hollow h, the third wrapper 140 surrounds the separate wrapper, thereby forming the third granule segment ( 130) may be enclosed.

The granule segment 130 is formed by surrounding the hollow (h) with the first filter segment 110 and the second filter segment 120 by the third wrapper 140, thereby forming the first filter segment 110 and the second filter. It may have the same shape as the segment 120, for example, it may have a cylindrical shape.

The length of the granular segment 130 may be 10 mm or more, 12 mm or more, 14 mm or more, or 16 mm or more. Also, the length of the granule segment 130 may be 24 mm or less, 22 mm or less, 20 mm or less, or 18 mm or less. For example, the length of the granule segment 130 may be 10 mm to 24 mm, 12 mm to 22 mm, 14 mm to 20 mm, or 16 mm to 18 mm, and may be specifically 10 mm or 24 mm. The diameter of the granule segment 130 may be the same as the diameter of each of the first filter segment 110 and the second filter segment 120 . Here, the same is meant to include substantially the same due to an error or the like in a process.

The third wrapper 140 may include a material different from that of the first wrapper 112 or may be formed of a material different from that of the first wrapper 112 . Specifically, the third wrapper 140 may be a material having lower thermal conductivity than the first wrapper 112 or may not be a thermally conductive material. Through this, heat is intensively transferred from the heating unit 220 to the first filter 111 so that aerosol is effectively generated, and the third wrapper 140 moves to another area such as the second filter 121 where heating is not required. ) to minimize heat transfer. In addition, it is possible to prevent heat transferred from the first filter 111 to the second filter 121 from leaking through the third wrapper 140, and thus, it is possible to help uniformly transfer a high content of nicotine. . For example, the third wrapper 140 may be paper such as sterile paper (MFW).

On the other hand, the aerosol generating article 100 according to an embodiment of the present invention includes granules 131 containing tobacco powder and a pH adjusting agent, so that even when the granules 131 are not heated, the granules 131 are heated. As is the case, the transfer of nicotine can have possible effects. In addition, the aerosol-generating article 100 generates an aerosol by disposing an aerosol-generating material on the first segment 110 and heating it at a low temperature, and allows the aerosol to move along the airflow and deliver nicotine, thereby having a high nicotine content. can be carried out uniformly. In addition, since the first segment 110 is heated at a relatively low temperature, the heating temperature of the heating unit 220 can be lowered and power consumption of the aerosol generating device 200 can be reduced.

The aerosol-generating article 100 according to an embodiment of the present invention may not include a cooling member. This is because nicotine is transferred by heating at a temperature so low that cooling is not required by using the granules 131 containing the pH adjusting agent. Additionally, the aerosol-generating article 100 may also not include a mouthpiece. This is because a non-disposable mouthpiece can be provided in an aerosol generating device described later. As described above, the aerosol-generating article 100 according to an embodiment of the present invention does not include components such as a cooling member and a mouthpiece, so that product miniaturization, portability, cost reduction, and waste minimization are possible. can have

The aerosol-generating article 100 according to an embodiment of the present invention is obtained by controlling the lengths of the first filter segment 110, the second filter segment 120 and the granule segment 130 within the above-described range. ) can reduce the overall length of The overall length of the aerosol-forming article 100 may be less than 50 mm, and may be less than or equal to 45 mm, less than or equal to 40 mm, less than or equal to 35 mm, less than or equal to 30 mm, or less than or equal to 25 mm. For example, the length of each of the first filter 110 and the second filter 120 may be 7 mm, and the length of the hollow h may be 10 mm, in which case the total length of the aerosol-forming article 100 may be 24 mm. Articles of uniform size can be manufactured. Therefore, it is possible to provide a disposable aerosol-forming article 100 that can be relatively miniaturized compared to commonly used aerosol-forming articles, which is convenient and hygienic for users to carry, cost reduction and waste minimization. can Such aerosol-forming articles 100 may be particularly suitable for cigarette-type stick structures.

4 is a cross-sectional view of an aerosol-generating device according to one embodiment.

5 is a cross-sectional view illustrating a heating region of a heater unit of an aerosol generating device according to an exemplary embodiment.

The aerosol generating device 200 may include at least one of an accommodation unit 210, a heating unit 220, a mouthpiece unit 230, a power supply unit 240, and a control unit 250. The aerosol-generating device 200 according to one embodiment may be used with the aerosol-generating article 100 described above.

The aerosol-generating article 100 is inserted into the accommodating portion 210 . The accommodating portion 210 may be in the form of a groove or a hole formed in the aerosol generating device 200 .

The heating unit 220 heats the first filter segment 110 of the aerosol-generating article 100 inserted into the accommodating unit 210 . The heating unit 220 may have a cylindrical shape and may be disposed to surround at least a portion of the first filter segment 110 . However, the heating unit 220 may be needle, rod, or shaped, and may be disposed to penetrate at least a portion of the first filter segment 110 . The heating unit 220 may heat only the first filter segment 110 and may not heat the granule segment 130 . Therefore, the heating unit 220 is disposed in a region between one end and the other end of the first filter segment 110 to surround or pass through the first filter segment 110, and the granule segment 130 does not surround or pass through the first filter segment 110. may not be

The heating temperature of the heating unit 220 may be 180 °C or higher, 190 °C or higher, 200 °C or higher, or 205 °C or higher. In addition, the heating temperature of the heating unit 220 may be 240 °C or less, 230 °C or less, 220 °C or less, or 215 °C or less. For example, the heating temperature of the heating unit 220 may be 180 °C to 240 °C, 190 °C to 230 °C, 200 °C to 220 °C, or 205 °C to 215 °C. In other words, the heating unit 220 may heat the first filter segment 110 to the above-described temperature range. Within this temperature range, aerosol and/or atomization may be effectively generated in the first filter segment 110, and heat of an appropriate temperature may be transferred to the granules 131.

A temperature of heat transferred from the heating unit 220 to the granules 131 of the aerosol-generating article 100 inserted into the accommodating unit 210 may be 150° C. or lower. More specifically, the temperature of the heat transferred to the granules 131 may be 150 °C or less, 140 °C or less, 130 °C or less, 120 °C or less, or 110 °C or less. In addition, the temperature of the heat transferred to the granules 131 may be 50 °C or higher, 60 °C or higher, 70 °C or higher, 80 °C or higher, or 90 °C or higher. For example, the temperature of the heat transferred to the granules 131 may be 50 °C to 150 °C, 60 °C to 140 °C, 70 °C to 130 °C, 80 °C to 120 °C, or 90 °C to 110 °C. Within this temperature range, a high content of nicotine can be uniformly transferred together with the aerosol. However, the appropriate temperature of the heat delivered to the granules 131 may vary depending on the pH of the granules 131, the amount of aerosols generated, and the filling rate of the granules 131.

The mouthpiece part 230 discharges aerosol and is configured for user's inhalation. Specifically, the user may inhale the aerosol by inhaling the mouthpiece part 230 through the mouth.

The mouthpiece part 230 may be detachable from the main body of the aerosol generating device 200 . Therefore, the mouthpiece 230 may be separated from the main body, the aerosol generating article 100 may be inserted into the accommodating portion 210, and then the mouthpiece 230 may be reattached and used. However, the method of using the aerosol generating device 200 is not limited thereto.

The power supply 240 may supply power to at least one component of the aerosol generating device 200 . For example, the power supply 240 may supply power to the heating unit 220 or supply power necessary for operation to the control unit 250 . The power supply 240 may include at least one battery.

The controller 250 may control at least one component of the aerosol generating device 200 . For example, the control unit 250 may control the power supplied by the power supply unit 240, the operation or heating temperature of the heating unit 220, and the like. To this end, the controller 250 may include at least one processor.

Meanwhile, the aerosol generating device 200 may not include a cartridge containing a liquid composition such as an aerosol generating material. The first filter segment 110 of the aerosol-generating article 100 includes the first filter 111 impregnated with an aerosol-generating material, and therefore requires a separate supply of aerosol and/or atomization by the aerosol-generating device 200. because you may not

In addition, the components of the aerosol generating device 200 are not limited to the above-described components, and the aerosol generating device 200 may further include general-purpose components, and all or some of the above-described components may be different from other components. It may be changed or omitted as a component.

Although the embodiments of the present invention have been described above by way of example, the above description is intended to aid understanding of the present invention, and is not intended to limit the embodiments of the present invention to the above-described forms. Accordingly, the foregoing embodiments should be construed as illustrative and not limiting.

In addition, the scope of the present invention should be defined by the claims below, and should not be limited to the examples. Those skilled in the art will be able to implement the present invention in various forms without departing from the technical spirit of the present invention with reference to this specification and the accompanying drawings. Therefore, technical ideas within the scope equivalent or equivalent to the scope of the claims should be construed as being included in the scope of the present invention.

In this specification, the order of first, second, etc. is for distinguishing components from each other, and does not mean a priority order between components or an absolute order. Accordingly, a component referred to as a first component in some parts of this specification may be referred to as a second component in other parts of this specification.

The terms and expressions used herein are to be interpreted broadly and not in a limiting sense. Unless defined otherwise, all terms and expressions used in this specification may be interpreted as meanings commonly understood by those of ordinary skill in the art to which the present invention belongs. The expression “including” in this specification does not exclude the presence or addition of one or more other components other than the mentioned components. Numerical ranges given herein are meant to be inclusive of the boundary values unless otherwise stated. For example, the expression 1 to 10 means 1 or more and 10 or less, which is a range including 1 and 10. Also, in this specification, expressions in the singular form include the plural form unless explicitly excluded from the context.

Each embodiment described as an example in this specification can be combined with each other, and unless contradictory, content described in a specific embodiment can be equally applied to other embodiments even if not described in other embodiments.

100: aerosol generating article
110: first filter segment
111: first filter
112: first wrapper
120: second filter segment
121: second filter
122: second wrapper
130: granule segment
h: hollow
131 granules
140: third wrapper
200: aerosol generating device
210: receiving part
220: heating unit
230: mouthpiece part
240: power supply
250: control unit

Claims (12)

a first filter segment comprising an aerosol-generating substance;
a second filter segment; and
a granule segment disposed between the first filter segment and the second filter segment and comprising granules containing tobacco powder and a pH adjusting agent; Including,
The first filter segment and the second filter segment are each disposed adjacent to each of both ends of the granule segment,
Aerosol-generating articles.
According to claim 1,
wherein the first filter segment comprises a pleated paper filter impregnated with the aerosol-generating material.
Aerosol-generating articles.
According to claim 1,
wherein the aerosol-generating material comprises at least one of glycerin and propylene glycol;
Aerosol-generating articles.
According to claim 1,
The pH adjusting agent comprises at least one of potassium carbonate and sodium hydrogen carbonate,
Aerosol-generating articles.
According to claim 2,
a first wrapper surrounding at least a portion of each of the first filter segment, the second filter segment and the granule segment; Including more,
the granules are disposed in the hollow between the first filter segment and the second filter segment;
The first wrapper surrounds the hollow to contain the granules,
Aerosol-generating articles.
According to claim 5,
The first filter segment further comprises a second wrapper surrounding the corrugated paper;
The thermal conductivity of the second wrapper is higher than the thermal conductivity of the first wrapper,
Aerosol-generating articles.
According to claim 6,
The first wrapper is sterile paper (MFW),
The second wrapper is an aluminum foil,
Aerosol-generating articles.
According to claim 1,
The second filter segment comprises at least one of a paper filter and a cellulose acetate filter,
Aerosol-generating articles.
An accommodation portion into which the aerosol-generating article of claim 1 is inserted;
a heating unit for heating the first filter segment of the aerosol-generating article inserted into the accommodating unit; and
mouthpiece part; including,
Aerosol generating device.
According to claim 9,
The heating unit heats the first filter segment to a temperature of 180 ° C to 240 ° C,
Aerosol generating device.
According to claim 9,
heat of 50° C. to 150° C. is transferred from the heating unit to the granules of the aerosol-generating article inserted into the receptacle;
Aerosol generating device.
According to claim 9,
the heating portion encloses a region between one end and the other end of the first filter segment of the aerosol-generating article inserted into the receptacle;
Aerosol generating device.

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