KR20220141650A - Tobacco material comprising flavor material and method of manufacturing the same - Google Patents

Abstract

One embodiment according to the present disclosure discloses a tobacco material including a center portion including a flavor material, and an outer layer portion including a tobacco mixture, and the outer layer portion is formed to surround the center portion. In addition to the same, various embodiments identified through the specification are possible. According to various embodiments of the present disclosure, it is possible to improve the efficiency of the process of manufacturing tobacco material, and the manufacturing yield can be improved through the process.

Description

TOBACCO MATERIAL COMPRISING FLAVOR MATERIAL AND METHOD OF MANUFACTURING THE SAME

Various embodiments according to the present disclosure relate to a tobacco material including a flavor material and a method for manufacturing the same.

In recent years, there has been an increasing demand for alternatives to aerosol-generating articles. For example, there is a growing demand for devices that generate aerosols as the aerosol-generating material in an aerosol-generating article is heated rather than a method of generating an aerosol by burning an aerosol-generating article (eg, a cigarette).

To improve the tobacco taste provided through the aerosol-generating article, a flavoring material may be added to the aerosol-generating article. However, in the case of highly volatile substances among flavor substances, a certain amount may be volatilized at the beginning of smoking and may not be uniformly provided throughout smoking.

SUMMARY OF THE INVENTION The problem to be solved by the present disclosure is to provide a tobacco material comprising a flavor material and a method for preparing the same.

The technical problem to be achieved by the present disclosure is not limited to the technical problem as described above, and other technical problems may be inferred from the following embodiments.

Tobacco material in one embodiment may include a central portion including a flavor material, and an outer layer portion including a tobacco mixture, and the outer layer portion may be formed to surround the central portion.

The method of manufacturing a tobacco material in one embodiment may include growing a first composition to form a central portion, and forming an outer layer portion surrounding the central portion.

Means for solving the problems are not limited to the above, and may include all matters that can be inferred by those skilled in the art throughout the present specification.

According to various embodiments of the present disclosure, the tobacco material may effectively retain flavor and uniformly provide flavor during the user's smoking.

According to various embodiments of the present disclosure, the efficiency of a process for manufacturing a tobacco material may be improved, and a manufacturing yield may be improved through the process.

Effects of the present disclosure are not limited to the above, and may include all effects that can be inferred from the configuration to be described later.

1 is a view showing a tobacco material according to an embodiment.
Figure 2a is a view showing a tobacco material according to another embodiment.
Figure 2b is a view showing a tobacco material according to another embodiment.
3A is a diagram illustrating a smoking article according to an embodiment.
3B is a diagram illustrating a smoking article according to another embodiment.
3C is a view illustrating a smoking article according to another embodiment.
3D is a diagram illustrating a smoking article according to another embodiment.
4 is a flowchart of a method of manufacturing a tobacco material according to an embodiment.
Figure 5a is a view showing the process of the first step of the method for manufacturing a tobacco material according to an embodiment.
Figure 5b is a view showing the process of the first step of the method for manufacturing a tobacco material according to an embodiment.
Figure 5c is a view showing the process of the second step of the method for manufacturing a tobacco material according to an embodiment.
Figure 5d is a view showing the process of the second step of the method for manufacturing a tobacco material according to an embodiment.
Figure 5e is a view showing the process of the second step of the method for manufacturing a tobacco material according to an embodiment.
Figure 6 shows a graph of the menthol expression level of the tobacco material for the puff series according to an embodiment.

Terms used in the embodiments are selected as currently widely used general terms as possible while considering functions in the present disclosure, but may vary depending on intentions or precedents of those of ordinary skill in the art, emergence of new technologies, and the like. In addition, in a specific case, there is a term arbitrarily selected by the applicant, and in this case, the meaning will be described in detail in the description of the corresponding invention. Therefore, the terms used in the present disclosure should be defined based on the meaning of the term and the contents of the present disclosure, rather than the simple name of the term.

Throughout the specification, when a part "includes" an element, it means that other elements may be further included, rather than excluding other elements, unless otherwise stated. In addition, terms such as "...unit" and "...module" described in the specification mean a unit that processes at least one function or operation, which is implemented as hardware or software, or a combination of hardware and software. can be

Throughout the specification, "tobacco material" may refer to any form of material including components derived from tobacco plants.

Throughout the specification, "tobacco particle" may refer to the particle form of an ingredient derived from a tobacco plant. For example, the tobacco particles may be tobacco grains or tobacco powder.

Throughout the specification, "smoking article" may mean an article used by a user to smoke. For example, the smoking article may be a combustible cigarette, and may be an aerosol-generating article that is heated without being burned by the aerosol-generating device.

Throughout the specification, "surface roughness" may refer to the roughness of the surface of any object. For example, the surface roughness may be expressed as a centerline average roughness (Ra) according to the KS B 0161 standard.

As used herein, terms including an ordinal number such as 'first' or 'second' may be used to describe various elements, but the elements are not limited by the terms. The terms are used for the purpose of distinguishing one element from another.

Hereinafter, with reference to the accompanying drawings, embodiments of the present disclosure will be described in detail so that those of ordinary skill in the art to which the present disclosure pertains can easily implement them. However, the present disclosure may be implemented in several different forms and is not limited to the embodiments described herein.

Hereinafter, embodiments of the present disclosure will be described in detail with reference to the drawings.

1 is a view showing a tobacco material according to an embodiment.

Referring to FIG. 1 , a tobacco material 100 may include a central portion 110 including a flavor material and an outer layer portion 120 including a tobacco mixture. Specifically, the tobacco material 100 may be formed so that the outer layer portion 120 surrounds the central portion (110). For example, the tobacco material 100 may have a core-shell structure. Tobacco material 100 may have the shape of a sphere as a whole.

In one embodiment, the central portion 110 may include a flavor material. Specifically, the central portion 110 may include a highly volatile flavor material. For example, the flavoring material may include menthol. The central portion 110 may be formed through at least one of a menthol solution and a menthol crystal.

However, the flavor material is not limited to menthol, and can be variously changed according to the manufacturer's design.

For example, flavoring substances include cinnamon, sage, herbs, chamomile, chamomile, chamomile, lavender, bergamot, lemon, orange, cinnamon, jasmine, ginger, vanilla, spearmint, peppermint, acacia, coffee, celery, sandalwood, cocoa, etc. may contain botanical fragrances.

Flavoring substances may also include animal flavorings such as musk, ambergris, civet, castrium, and the like.

The flavoring substance may be an alcohol-like compound such as geraniol, linalol, anetol, eugenol, or the like. The flavoring substance may be an aldehyde compound such as vanillin, benzaldehyde, anisaldehyde and the like. The flavoring substance may be an ester-like compound such as isoamyl acetate, linaryl acetate, isoamyl propionate, linaryl butyrate, and the like.

In one embodiment, the central portion 110 may include a flavor material and tobacco particles. Tobacco particles may include various types of tobacco powder. For example, the tobacco particles may include tobacco powder of at least one of xanthoma, burery species, hwageonjong, yanggeonjong, and shade dry species.

In an embodiment, when the central portion 110 includes a flavor material and tobacco particles, the flavor material may be layered with respect to a seed formed of tobacco particles. For example, if tobacco particle seeds of a certain size are formed through a series of processes on tobacco particles, a menthol solution may be layered on the formed tobacco particle seeds and then dried.

In an embodiment, the flavor material of the central portion 110 may be included in an amount of 95 parts by weight or more based on 100 parts by weight of the central portion. As the flavor material of the central part 110 is included in an amount of 95 parts by weight or more based on 100 parts by weight of the central part, the flavor substance that can be provided when a user smokes once may be implemented substantially uniformly. However, the weight ratio of the flavor material is not limited thereto, and may be variously changed according to the design of the manufacturer.

In one embodiment, the central portion 110 may be formed through a tobacco dough comprising a flavoring material. For example, the central portion 110 may be formed through a dough containing a flavoring substance, tobacco particles, and a solvent (eg, water (H ₂ O)), and the amount of the solvent for the dough is controlled by adjusting the central portion 110 . may have an appropriate viscosity. Thereafter, even if the solvent is removed, the central portion 110 may substantially contain appropriate moisture. A detailed process of manufacturing the central portion 110 will be described later with reference to FIGS. 5A to 5E .

In one embodiment, the outer layer portion 120 may include a tobacco mixture. The tobacco mixture may include tobacco particles comprising various types of tobacco powder. For example, the tobacco particles may include tobacco powder of at least one of xanthoma, burery species, hwageonjong, yanggeonjong, and shade dry species.

In one embodiment, the outer layer portion 120 may be formed through tobacco dough containing tobacco particles. For example, the outer layer portion 120 may be formed through a dough containing tobacco particles and a solvent, and the amount of the solvent for the dough is adjusted so that the outer layer portion 120 may have an appropriate viscosity. Thereafter, even if the solvent is removed, the outer layer part 120 may substantially contain appropriate moisture. A detailed process of manufacturing the outer layer part 120 will be described later with reference to FIGS. 5A to 5E .

In an embodiment, the central portion 110 may have a diameter of D1. For example, D1 may be about 0.01 to about 0.3 mm. Specifically, D1 may be about 0.01 to about 0.15 mm. However, the diameter of the central portion 110 is not limited thereto. In one embodiment, the outer layer portion 120 may have a diameter of D2. For example, D2 may be from about 0.5 to about 1.99 mm. Specifically, D2 may be about 0.65 to about 1.99 mm. However, the diameter of the outer layer portion 120 is not limited thereto.

In one embodiment, the transfer amount and transfer time of the flavor material of the tobacco material 100 may be different depending on the diameter of the outer layer portion (120). For example, when the diameter of the outer layer portion 120 is about 2 mm or more, the transfer amount of the flavor material may not be uniform as the transfer time of the flavor material is delayed. When the diameter of the outer layer portion 120 is less than about 0.5 mm, the transfer amount of the flavor material may not be uniform as the transfer time of the flavor material is accelerated. When the diameter of the outer layer portion 120 is about 0.5 to 1.99 mm, the transfer of the flavor material to the central portion 110 may be started at a substantially appropriate time so that the flavor material can be uniformly transferred.

In one embodiment, the tobacco material 100 may have about 5.0 to about 8.0 parts by weight of moisture. By including the moisture in the tobacco material 100 in the above-mentioned numerical range, the tobacco material 100 may have improved properties of at least one of hardness, flavor retention, and flavor development. For example, when the tobacco material 100 has less than about 5.0 parts by weight of moisture, the flavor development of the tobacco material 100 may be reduced. When the tobacco material 100 has a moisture greater than about 8.0 parts by weight, the tobacco material 100 may have a low hardness.

Meanwhile, the central portion 110 may have about 8.0 to about 15.0 parts by weight of moisture. Since the central part 110 contains moisture in the above-described numerical range, the central part 110 may have improved at least one characteristic of fragrance retention and fragrance expression. In addition, since the moisture content of the central part 110 is higher than the moisture content of the outer layer part 120 , the tobacco material 100 may be excellent in hardness, flavor retention and flavor development.

In one embodiment, the tobacco material 100 may have a viscosity of about 5 to about 200 cps. By having the tobacco material 100 having a viscosity in the above-described numerical range, the tobacco material 100 may have improved properties of at least one of excellent hardness, flavor retention, and flavor development. The viscosity of the tobacco material 100 may be adjusted according to the moisture content.

In one embodiment, the tobacco material 100 may have a hardness of about 90% or greater. Specifically, the tobacco material 100 may have a hardness of about 95% to about 99.9%. The “hardness of the tobacco material” is a physical property related to elasticity and recovery, and may mean a degree of resistance to pressure applied in a vertical direction with respect to the tobacco material 100 . "Hardness of tobacco substances" is measured using a hardness meter, and is calculated through the following formula.

Hardness (%) = [D-a]*100 / D

(D: the diameter of the tobacco material, a: the distance that the tobacco material is pressed by the 300 g weight (mm))

In one embodiment, the tobacco material 100 may have a density of about 0.60 to about 0.90 g/cc. Specifically, the tobacco material 100 may have a specific gravity of about 0.62 to about 0.75 g/cc. In one embodiment, the central portion 110 of the tobacco material 100 may have a specific gravity of about 0.50 to 0.70 g / cc.

In one embodiment, the tobacco material 100 may have a surface roughness (Ra) of about 0.1 to about 10.0. Specific details on the surface roughness of the tobacco material 100 will be described later with reference to FIGS. 2A to 2B .

Figure 2a is a view showing a tobacco material according to another embodiment.

Referring to FIG. 2A , the tobacco material 200 may include a central portion 210 including a flavor material and an outer layer portion 220 including a tobacco mixture. Specifically, the tobacco material 200 may be formed so that the outer layer portion 220 surrounds the central portion (210). Regarding the central portion 210 and the outer layer portion 220 , the same or similar contents to those described above in FIG. 1 may be omitted.

In one embodiment, the tobacco material 200 may have an overall spherical shape. In one embodiment, when the central portion 210 of the tobacco material 200 has a spherical shape, the outer layer portion 220 formed to surround the central portion 210 may also have a spherical shape.

In one embodiment, the outer layer portion 220 of the tobacco material 200 may have a predetermined surface roughness (roughness average, Ra).

For example, the outer layer portion 220 may have a surface roughness of about 0.1 to 5.0. As the outer layer portion 220 has a surface roughness in the above-described numerical range, a substantially smooth surface may be formed. When a smoking article (not shown) is filled with a plurality of tobacco materials 200 including the outer layer portion 220 having a substantially smooth surface, the amount of the filled tobacco material 200 may be increased. In addition, by adjusting the porosity of the surface of the outer layer portion 220, the flavor development of the tobacco material 200 may be controlled.

As another example, the outer layer portion 220 may have a surface roughness of about 5.0 to 10.0. When the outer layer portion 220 has a surface roughness in the above-described numerical range, a substantially rough surface may be formed. As the surface roughness of the surface of the outer layer part 220 increases, the fragrance expression property may be improved. When the plurality of tobacco materials 200 including the outer layer portion 220 having a substantially rough surface are filled in a smoking article (not shown), the plurality of tobacco materials 200 increase frictional force to be stably attached to the smoking article. may be retained, and the surface area of the tobacco material 200 may be increased to increase the transfer amount of nicotine upon heating.

Figure 2b is a view showing a tobacco material according to another embodiment.

Referring to FIG. 2B , the tobacco material 300 may include a central portion 310 including a flavor material and an outer layer portion 320 including a tobacco mixture. Specifically, the tobacco material 300 may be formed so that the outer layer portion 320 surrounds the central portion (310). Regarding the central portion 310 and the outer layer portion 320 , the same or similar contents to those described above in FIG. 1 may be omitted.

In one embodiment, the tobacco material 300 may have the shape of a sphere with a deformed overall shape. For example, in the process of manufacturing the tobacco material 300 , when the central portion 310 is not substantially spherical, the outer layer portion 320 growing while surrounding the central portion 310 may also be substantially not spherical. can Accordingly, as shown in FIG. 2B , the tobacco material 300 may have an atypical shape.

For example, the outer layer portion 320 may have a surface roughness of about 0.1 to 5.0. When the outer layer portion 320 has a surface roughness in the above-described numerical range, a substantially smooth surface may be formed. When a smoking article (not shown) is filled with a plurality of tobacco materials 300 including the outer layer portion 320 having a substantially smooth surface, the amount of the filled tobacco material 300 may be increased. In addition, by adjusting the porosity of the surface of the outer layer portion 320, the flavor development of the tobacco material 300 may be controlled.

As another example, the outer layer portion 320 may have a surface roughness of about 5.0 to 10.0. When the outer layer portion 320 has a surface roughness in the above-described numerical range, a substantially rough surface may be formed. As the surface roughness of the surface of the outer layer part 320 increases, the fragrance expression property may be improved. When a smoking article (not shown) is filled with the plurality of tobacco materials 300 including the outer layer portion 320 having a substantially rough surface, the plurality of tobacco materials 300 increase frictional force to be stably attached to the smoking article. may be retained, and the surface area of the tobacco material 300 may be increased to increase the transfer amount of nicotine upon heating.

3A is a diagram illustrating a smoking article according to an embodiment.

Referring to FIG. 3A , smoking article 400 may include a first portion 410 and a second portion 420 . The first portion 410 may be a tobacco rod and the second portion 420 may be a filter segment. For example, smoking article 400 may be a combustible cigarette.

In one embodiment, the first portion 410 may include a plurality of tobacco material 411 . Tobacco material 411 may be the tobacco material of FIGS. 1-2B . In an embodiment, the first portion 410 may be ignited and combusted by a user.

In one embodiment, the second portion 420 may be a filter segment comprising filter material. For example, the second portion 420 may be a cellulose acetate (CA) filter. The second part 420 may be a cylindrical filter or a hollow filter, but the shape of the second part 420 is not particularly limited. The user may smoke while holding the second portion 420 in his/her mouth.

In an embodiment, when the first portion 410 is burned, flavor may be generated from the plurality of tobacco materials 411 . For example, when menthol, which is a flavor material, is included in the center of the tobacco material 411 , the menthol flavor is not substantially expressed in the early part of smoking, but may be expressed in the middle and late part of smoking.

3B is a diagram illustrating a smoking article according to another embodiment.

Referring to FIG. 3B , smoking article 500 may include a first portion 510 , a second portion 520 , a third portion 530 , and a fourth portion 540 . The first part 510 , the second part 520 , the third part 530 , and the fourth part 540 may be disposed along the longitudinal direction. For example, smoking article 500 may be an article that is heated without burning to generate an aerosol.

In one embodiment, the first portion 510 may include a plurality of tobacco material 511 . Tobacco material 511 may be the tobacco material of FIGS. 1-2B . In an embodiment, the first portion 510 may further include an aerosol generating material. The aerosol generating material may be applied to the surface of the tobacco material 511 . For example, the aerosol generating material may be at least one of glycerin, propylene glycol, ethylene glycol, dipropylene glycol, diethylene glycol, triethylene glycol, tetraethylene glycol and oleyl alcohol. In one embodiment, the first portion 510 may be heated by an aerosol generating device (not shown).

In one embodiment, the second portion 520 may be a support for supporting the smoking article 500 . For example, the second portion 520 may be a hollow filter. The second part 520 may serve to connect and support the first part 510 and the third part 530 to each other.

In an embodiment, the third part 530 may be a cooling unit that cools the airflow. For example, the third portion 530 may be a hollow tube or a paper tube. The hollow tube or paper tube may include a venting area (not shown) through which air from outside the smoking article 500 may be introduced. The third portion 530 may serve to cool the aerosol generated from the first portion 510 .

In one embodiment, the fourth portion 540 may be a filter segment comprising filter material. For example, the fourth portion 540 may be a cellulose acetate (CA) filter. The fourth part 540 may be a cylindrical filter or a hollow filter, but the shape of the fourth part 540 is not particularly limited. The user may smoke while holding the fourth portion 540 in his/her mouth.

3C is a view illustrating a smoking article according to another embodiment.

Referring to FIG. 3C , smoking article 600 may include a first portion 610 , a second portion 620 , a third portion 630 , and a fourth portion 640 . The first part 610 , the second part 620 , the third part 630 , and the fourth part 640 may be disposed along the longitudinal direction. For example, smoking article 600 may be an article that is heated without burning to generate an aerosol.

In one embodiment, the first portion 610 may be a filter segment. For example, the first part 610 may be a cellulose acetate (CA) filter having a specific shape of hollow therein. Specifically, the first portion 610 may be a cellulose acetate filter having a phosphorus-shaped hollow, but is not limited thereto.

In one embodiment, the second portion 620 may include tobacco material 621 . Tobacco material 621 may be the tobacco material of FIGS. 1-2B . In an embodiment, the second portion 620 may further include an aerosol generating material. For example, the aerosol generating material may be at least one of glycerin, propylene glycol, ethylene glycol, dipropylene glycol, diethylene glycol, triethylene glycol, tetraethylene glycol and oleyl alcohol. The second portion 620 may be heated by an aerosol generating device (not shown).

In an embodiment, the third portion 630 may be a cooling unit that cools the airflow. For example, the third portion 630 may be a hollow tube or a paper tube. The hollow tube or paper tube may include a venting area (not shown) through which air outside the smoking article 600 may enter. The third part 630 may serve to cool the aerosol.

In one embodiment, the fourth portion 640 may be a filter segment comprising filter material. For example, the fourth portion 640 may be a cellulose acetate (CA) filter. The fourth part 640 may be a cylindrical filter or a hollow filter, but the shape of the fourth part 640 is not particularly limited. The user may smoke while holding the fourth portion 640 in his/her mouth.

3D is a diagram illustrating a smoking article according to another embodiment.

Referring to FIG. 3D , smoking article 700 may include a first portion 710 , a second portion 720 , a third portion 730 , and a fourth portion 740 . The first portion 710 , the second portion 720 , the third portion 730 , and the fourth portion 740 may be disposed along the longitudinal direction. For example, smoking article 700 may be an article that is heated without burning to generate an aerosol.

In one embodiment, the first portion 710 may be an aerosol generating substrate. For example, the aerosol-generating substrate may comprise a sheet of paper impregnated with an aerosol-generating material. The aerosol generating material may be at least one of glycerin, propylene glycol, ethylene glycol, dipropylene glycol, diethylene glycol, triethylene glycol, tetraethylene glycol and oleyl alcohol. The first portion 710 may be heated by an aerosol generating device (not shown).

In one embodiment, the second portion 720 may be a nicotine generating substrate. In one embodiment, the second portion 720 may include tobacco material 721 . Tobacco material 721 may be the tobacco material of FIGS. 1-2B . In one embodiment, the second portion 720 may include a sheet of paper impregnated with tobacco material 721 and an aerosol generating material. The second portion 720 may be heated by an aerosol generating device (not shown).

In an embodiment, the third portion 730 may be a cooling unit that cools the airflow. For example, the third portion 730 may be a hollow tube or a paper tube. The hollow tube or paper tube may include a venting area (not shown) through which air outside the smoking article 700 may enter. The third part 730 may serve to cool the aerosol.

In one embodiment, the fourth portion 740 may be a filter segment comprising filter material. For example, the fourth portion 740 may be a cellulose acetate (CA) filter. The fourth part 740 may be a cylindrical filter or a hollow filter, but the shape of the fourth part 740 is not particularly limited. The user may smoke while holding the fourth portion 740 in his/her mouth.

4 is a flowchart of a method of manufacturing a tobacco material according to an embodiment.

Referring to FIG. 4 , the method for manufacturing a tobacco material ( S100 ) may include a first step ( S110 ) and a second step ( S120 ).

According to one embodiment, the first step (S110) may be a step of growing the first composition to form the center of the tobacco material. In one embodiment, the first composition may include a flavoring substance and water. Specifically, the first composition may include about 95 to 99 parts by weight of a flavoring material and about 1 to 5 parts by weight of water. In another embodiment, the first composition may include flavoring substances, tobacco powder and water. Specifically, the first composition may include about 95 to 99 parts by weight of a flavor substance, about 0.14 to 0.71 parts by weight of tobacco powder, and about 0.86 to 4.29 parts by weight of water. For example, the first composition may include about 6 times more water than tobacco powder.

In one embodiment, the first composition in the first step (S110) may be suspended in the chamber, may be supplied with water at a temperature of about 60 ℃ or less, and may be dried with hot air for about 6 hours.

According to an embodiment, the second step ( S120 ) may be a step of forming an outer layer portion surrounding the formed central portion. In one embodiment, the second composition may include tobacco powder and a solvent. The solvent may include water and an ethanol solution. Specifically, the second composition may include about 14 to 15 parts by weight of tobacco powder, about 51 to 52 parts by weight of water, and about 34 to 35 parts by weight of ethanol.

In one embodiment, the center prepared in the first step (S110) may have a moisture content of about 8% to about 15% based on the total weight of the tobacco material. In addition, the core may have a hardness of about 85% to about 95%.

In an embodiment, the outer layer portion manufactured in the second step ( S120 ) has a relatively low moisture content and high hardness compared to the central portion. Tobacco material prepared through the second step (S120) may have a moisture content of about 5% to about 8% based on the total weight. In addition, the outer layer portion may have a hardness of about 95% to about 99.9%. Accordingly, the tobacco material may have a hardness of from about 95% to about 99.9%.

The first step ( S110 ) and the second step ( S120 ) will be described below in detail with reference to FIGS. 5A to 5E . In particular, the first step S110 may be described below with reference to FIGS. 5A to 5C , and the second step S120 may be described with reference to FIGS. 5D to 5E .

Figure 5a is a view showing the process of the first step of the method for manufacturing a tobacco material according to an embodiment. Figure 5b is a view showing the process of the first step of the method for manufacturing a tobacco material according to an embodiment.

Referring to FIG. 5A , the apparatus for manufacturing tobacco material may include a chamber 900 , a first storage unit 910 , a second storage unit 920 , and a supply unit 930 . In an embodiment, the first storage unit 910 may store the first composition, and the second storage unit 920 may store the second composition. For example, the first storage unit 910 may include a first composition including a flavor material and water. The second storage unit 920 may include a second composition including tobacco powder and a solvent. For another example, the first storage unit 910 may include a first composition including a flavor material, tobacco powder, and water.

In an embodiment, the first storage unit 910 and the second storage unit 920 may be connected to the supply unit 930 through a first valve 915 and a second valve 925 , respectively. For example, when the first valve 915 is in an open state, the first composition stored in the first storage unit 910 may be supplied to the chamber 900 through the supply unit 930 . At this time, the second valve 925 may be maintained in a closed state. For another example, when the second valve 925 is in an open state, the second composition stored in the second storage unit 920 may be supplied to the chamber 900 through the supply unit 930 . At this time, the first valve 915 may be maintained in a closed state.

In one embodiment, in the first step (eg, the first step S110 of FIG. 4 ), the first composition 940 is supplied from the first storage unit 910 to the chamber 900 through the supply unit 930 . may include steps. At this time, the first composition 940 may be sprayed into the chamber 900 .

Referring to FIG. 5B , the first step S110 may include a step of growing the first composition 940 sprayed into the chamber 900 under certain conditions. For example, the predetermined conditions under which the first composition 940 can grow may mean a temperature of about 30° C. or more to about 60° C. or less, and a wind pressure condition of about 1.5 bar or less.

In an embodiment, the first composition 940 may grow into the seed 960 of the first size under certain conditions. For example, when the first composition 940 is supplied to the chamber 900 and external air 950 under a predetermined condition is introduced from the outside, the first composition 940 is the seed 960 of the first size. can grow into Thereafter, as the above process is repeated, the seed 960 of the first size grows into the seed 962 of the second size, and the seed 962 of the second size grows into the seed 964 of the third size. have.

Figure 5c is a view showing the process of the second step of the method for manufacturing a tobacco material according to an embodiment. Figure 5d is a view showing the process of the second step of the method for manufacturing a tobacco material according to an embodiment. Figure 5e is a view showing the process of the second step of the method for manufacturing a tobacco material according to an embodiment.

Referring to FIG. 5C , the second step (eg, the second step S120 of FIG. 4 ) may include positioning the central portion 970 formed in the first step in the chamber 900 . For example, the central portion 970 formed in the first step may mean a first composition grown as a seed having a predetermined size. In this case, the predetermined size may mean a diameter (eg, diameter D1 in FIG. 1 ) of the center preset according to the design of the manufacturer.

In an embodiment, the central portion 970 formed in the first step may be accumulated in the lower portion of the chamber 900 . In this case, the central portion 970 may have a constant moisture content to the extent that the plurality of central portions 970 do not adhere to each other. For example, at a temperature of about 30° C. or more to about 60° C. or less, which is a condition in which the first composition 940 can grow in the first step, and a wind pressure of about 1.5 bar or less, the finally formed central portion 970 is After drying to include the constant moisture content, it may be accumulated in the lower portion of the chamber 900 .

Referring to FIG. 5D , the second step S120 may include fluidizing the central portion 970 located in the chamber 900 . In an embodiment, as the external air 950 under a predetermined condition is introduced into the chamber 900 from the outside, the central portion 970 may be fluidized. For example, the predetermined conditions for the fluidization of the central portion 970 may mean a temperature of about 50° C. or more to about 90° C. or less, and a wind pressure condition of about 1.5 bar or less.

In an embodiment, the second step ( S120 ) may include supplying the second composition 980 from the second storage unit 920 to the chamber 900 through the supply unit 930 . At this time, the second composition 980 may be sprayed into the chamber 900 .

In an embodiment, the second composition 980 supplied from the second storage unit 920 may grow to surround the central portion 970 . For example, the central part 970 moves from the lower part to the upper part of the chamber 900 by the external air 950 , and the second composition 980 supplied from the second storage part 920 is transferred to the chamber 900 . As it moves from the upper part to the lower part, a frictional force may be generated between the central part 970 and the second composition 980 . Based on the frictional force, the second composition 980 may grow around the periphery of the central portion 970 .

Referring to FIG. 5E , the second step ( S120 ) may include a step of accumulating the final tobacco material 990 , in which the second composition 980 surrounds the central portion 970 , and is grown in the chamber 900 . . For example, the final tobacco material 990 formed in the second step S120 may mean a material grown into granules having a predetermined size. In this case, the predetermined size may mean a diameter (eg, about 0.8 to 2.0 mm) of a tobacco material preset according to the manufacturer's design.

In one embodiment, the first composition in the first step (S110) may be grown at a lower temperature than the second composition in the second step (S120). Because the first composition comprises a flavor material, growing at a lower temperature than the second composition may be advantageous in improving the flavor retention and aroma development of the tobacco material.

Figure 6 shows a graph of the menthol expression level of the tobacco material for the puff series according to an embodiment.

Referring to FIG. 6 , a graph corresponding to the comparative example 600 may indicate the expression level of menthol according to the puff series when menthol is included in the medium in a conventional form. In one embodiment, the graph corresponding to the embodiment 610 may indicate the expression level of menthol according to the puff series when menthol is included in the medium and/or filter in the form of a tobacco material according to the present disclosure. .

According to one embodiment, in the comparative example 600, the expression level of menthol is the highest in the number of puffs corresponding to the early part of smoking (eg, 3 to 5 times), and the number of puffs corresponding to the latter part of smoking (eg, 10 to 14) It can be seen that the expression level of menthol is the lowest. That is, as the puff by the user proceeds, the amount of menthol expressed is rapidly reduced, so that the user can hardly feel the flavor of menthol toward the second half of smoking.

According to one embodiment, it can be seen that the expression level of menthol in the number of puffs corresponding to the beginning of smoking in Example 610 is lower than the expression level of menthol in Comparative Example 600 . However, in Example 610, it can be seen that the expression level of menthol in the number of puffs corresponding to the second half of smoking is higher than the expression level of menthol in the number of puffs corresponding to the first half of smoking. That is, as the puff by the user progresses, the amount of menthol expressed substantially gradually increases, so that the user can feel the flavor of menthol uniformly throughout smoking.

A person of ordinary skill in the art related to this embodiment will understand that it can be implemented in a modified form within a range that does not deviate from the essential characteristics of the above description. Therefore, the disclosed embodiments should be considered in an illustrative rather than a restrictive sense. The scope of the invention is indicated in the claims rather than in the foregoing description, and all differences within an equivalent scope should be construed as being included in the invention.

100, 200, 300: tobacco substance S110: first stage
110, 210, 310: central S120: second stage
120, 220, 320: outer layer 900: chamber (chamber)
400: smoking article 910: first storage unit
410: first part 920: second storage unit
411 tobacco substance 930 supply part
420: second part 940: first composition
500, 600, 700: smoking article 970: central
510, 610, 710: first part 980: second composition
520, 620, 720: second part 990: tobacco material
530, 630, 730: third part
540, 640, 740: fourth part
S100: Method for manufacturing tobacco material

Claims (12)

A tobacco material comprising:
a core comprising a flavoring substance; and
an outer layer comprising a tobacco mixture;
wherein the outer layer portion is formed to surround the central portion. According to claim 1,
wherein the core further comprises tobacco particles and the flavor material comprises menthol. According to claim 1,
The tobacco material comprises 5.0 to 8.0 parts by weight of moisture based on 100 parts by weight of the tobacco material. According to claim 1,
Wherein the core comprises at least 95 parts by weight of the flavor material based on 100 parts by weight of the core. According to claim 1,
wherein the central portion has a diameter of 0.01 to 0.3 mm and the outer layer has a diameter of 0.5 to 1.99 mm. According to claim 1,
The tobacco material has a viscosity of 5 to 200 cps. According to claim 1,
The tobacco material has a surface roughness (Ra) of 0.1 to 10.0. According to claim 1,
wherein the tobacco material has the shape of a sphere. A tobacco rod comprising the tobacco material according to claim 1 ; and
An aerosol-generating article comprising a filter segment. A method for the manufacture of a tobacco material, comprising:
growing the first composition to form a core; and
forming an outer layer portion surrounding the central portion. 11. The method of claim 10,
The step of forming the center is,
spraying the first composition into a chamber; and
A method for producing a tobacco material, comprising growing the sprayed first composition at a temperature of 30° C. or more to 60° C. or less, and a wind pressure of 1.5 bar or less. 11. The method of claim 10,
The step of forming the outer layer portion,
locating the formed central portion in a chamber;
At a temperature of 50° C. or more to 90° C. or less, and a wind pressure of 1.5 bar or less, fluidizing the central portion located therein; and
and spraying a second composition onto the fluidized core.

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