Aerosol generating article and system for the same

Abstract

To provide an aerosol generating article in which an aerosol generating article including a tobacco material may be easily stored and kept, off-flavor may not occur from the tobacco material, and thus an improved smoking taste may be provided to the user.SOLUTION: An aerosol generating article 100 includes a front-end plug 110 configured to introduce external air into the aerosol generating article, a tobacco medium portion 120 including a tobacco material in the form of granules, and a filter unit 130 arranged at a position opposite the front-end plug across the tobacco medium portion, where the tobacco material has a pH value of 7 to 11.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to an aerosol product and system containing granular tobacco material. [Background technology]

[0002] Recently, there has been an increasing demand for alternative methods to overcome the shortcomings of conventional cigarettes, such as systems that utilize an aerosol generating device to generate aerosol by heating the cigarette or aerosol-generating material, rather than by burning a cigarette to generate aerosol.

[0003] However, a problem with aerosol generators generated by conventional methods is that the amount of nicotine delivered is low when heated at low temperatures or when not heated. Therefore, research has been actively conducted recently to improve the nicotine delivery when the aerosol generator is heated at low temperatures or when not heated by modifying the physical properties of the aerosol generator. Summary of the Invention [Problem to be solved by the invention]

[0004] When an aerosol-generating substance with altered physical properties is provided in a separate article rather than in an aerosol-producing product (e.g., a stick-shaped cigarette), nicotine continues to be released from the article to the outside even when the user is not actually smoking. In other words, when an aerosol-generating substance with altered physical properties is provided in a separate article rather than in an aerosol-producing product, the amount of nicotine transferred is significantly reduced in the latter half of the opening of the article compared to the early part. As a result, the level of smoking satisfaction felt by the user differs between the early and late parts of the opening of the article.

[0005] Thus, in various embodiments, the present disclosure provides aerosol producing articles and systems that include granular aerosol generating materials.

[0006] The technical problem that the present disclosure aims to solve is not limited to the technical problem described above, and other technical problems can be inferred from the following embodiments. [Means for solving the problem]

[0007] In one embodiment, the aerosol product includes a front-end plug that introduces outside air into the aerosol product, a tobacco medium portion containing granular tobacco material, and a filter portion that is positioned opposite the front-end plug, with the tobacco medium portion at the center, and the pH value of the tobacco material is 7 to 11.

[0008] In one embodiment, the aerosol generating system also includes an aerosol generating device that includes the aerosol product and a storage space for storing the aerosol product.

[0009] The means for solving the problem are not limited to those described above, but include any matter that can be inferred by a person skilled in the art throughout this specification. [Effects of the Invention]

[0010] According to various embodiments of the present disclosure, adjusting the pH of the tobacco material can increase the nicotine delivery of heat-free aerosol products.

[0011] Additionally, according to various embodiments of the present disclosure, adjusting the pH of the tobacco material facilitates the preservation and storage of aerosol products containing the tobacco material, and the tobacco material does not produce any unpleasant odors within the adjusted pH range, thereby providing the user with an improved smoking experience.

[0012] The effects of the present disclosure are not limited to those described above, but also include any effects that can be inferred from the configurations described below. [Brief explanation of the drawings]

[0013] [Figure 1] FIG. 1 illustrates an aerosol generation system according to one embodiment. [Figure 2] FIG. 1 illustrates an aerosol production article including a tobacco medium portion having two segments, according to one embodiment. [Figure 3A] 2 is a cross-sectional view taken longitudinally along line XX' of an aerosol product according to one embodiment. FIG. [Figure 3B] 2 is a cross-sectional view taken longitudinally along line XX' of an aerosol product according to one embodiment. FIG. [Figure 3C] 2 is a cross-sectional view taken longitudinally along line XX' of an aerosol product according to one embodiment. FIG. [Figure 4] FIG. 1 illustrates a cross-sectional view of a tobacco medium portion according to one embodiment. [Figure 5] 10A-10C illustrate cross-sectional views of tobacco medium portions according to other embodiments. [Figure 6] 1 illustrates a graph of nicotine transfer as a function of pH for an aerosol product according to one embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0014] The terms used in this embodiment are currently commonly used and general terms that have been selected as much as possible while taking into consideration the functions of the present disclosure. However, they may vary depending on the intentions of engineers in the field, legal precedents, the emergence of new technologies, etc. In addition, in certain cases, the applicant may arbitrarily select terms, and in such cases, their meanings will be described in detail in the description of the invention. Therefore, the terms used in this disclosure must be defined based on the meanings of the terms and the overall content of the present disclosure, rather than simply by the names of the terms.

[0015] Throughout the specification, when a part "includes" a certain element, it does not mean excluding other elements, but also means including other elements, unless otherwise specified. Furthermore, terms such as "unit" and "module" used in the specification mean a unit that processes at least one function or operation, and they may be realized by hardware or software, or a combination of hardware and software.

[0016] Throughout the specification, "tobacco material" can refer to any form of material containing components derived from the tobacco plant, for example, tobacco particles or tobacco powder.

[0017] Throughout the specification, the term "aerosol-producing article" may refer to an article used by a user for smoking, such as a cigarette that is directly combusted by an aerosol-generating device, a non-heating cigarette that does not require heating, or a cigarette that is heated at a low temperature.

[0018] As used herein, terms including ordinal numbers, 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 to distinguish one element from another.

[0019] Hereinafter, with reference to the accompanying drawings, embodiments of the present disclosure will be described in detail so that those skilled in the art can easily implement them. The present disclosure may be embodied in the aerosol generating device of the various embodiments described above, or may be embodied in various different forms, but is not limited to the embodiments described herein.

[0020] Hereinafter, embodiments of the present disclosure will be described in detail with reference to the drawings.

[0021] FIG. 1 is a diagram illustrating an aerosol generating system according to one embodiment.

[0022] 1, the aerosol generating system 300 includes an aerosol product 100 and an aerosol generating device 200. In one embodiment, the aerosol generating device 200 includes a storage space for storing the aerosol product 100. The aerosol generating device 200 also includes a separate component (e.g., a cartridge 210) containing a liquid substance.

[0023] In one embodiment, the aerosol production article 100 also includes a front end plug 110, a tobacco medium section 120, and a filter section 130. Specifically, the front end plug 110, the tobacco medium section 120, and the filter section 130 may be arranged sequentially in the longitudinal direction of the aerosol production article 100. In addition to the components illustrated in FIG. 1 , the aerosol production article 100 may further include other general components.

[0024] In one embodiment, the front-end plug 110 may introduce outside air into the aerosol product 100. In the present disclosure, when the aerosol product 100 is a non-heating aerosol product, the front-end plug 110 may introduce an aerosol generated by heating a separate component (e.g., a cartridge 210 containing a liquid substance) as outside air into the aerosol product 100. In this case, the liquid substance contained in the separate component may be a liquid containing a tobacco-containing substance including a volatile tobacco flavor component, or a liquid containing a non-tobacco substance.

[0025] For example, the liquid substance included in the separate component may include water, solvent, ethanol, plant extract, fragrance, flavoring, or vitamin mixture. The fragrance may include, but is not limited to, menthol, peppermint, spearmint oil, and various fruit flavoring ingredients. The flavoring may include ingredients that can provide the user with a variety of flavors or tastes. The vitamin mixture may include, but is not limited to, a mixture of at least one of vitamin A, vitamin B, vitamin C, and vitamin E. The liquid substance may also include an aerosol-forming agent such as glycerin and propylene glycol.

[0026] In one embodiment, the front end plug 110 includes one of an acetate filter made of cellulose acetate tow and a paper filter made of paper. In this case, when the front end plug 110 includes an acetate filter made of cellulose acetate tow, the front end plug 110 can be made to generate a flavor.

[0027] For example, if the front-end plug 110 includes an acetate filter, a liquid fragrance containing a flavoring substance is sprayed onto the acetate filter, and separate fibers coated with the liquid fragrance may be included inside the acetate filter. In another example, if the front-end plug 110 includes an acetate filter, the acetate filter may include a capsule containing a flavoring substance.

[0028] The flavoring substances may include, but are not limited to, menthol.

[0029] For example, the flavoring substances may include botanical flavors such as cinnamon, sage, herbs, chamomile, winter hay, sweet tea, lavender, bergamot, lemon, orange, cinnamon, jasmine, ginger, vanilla, spearmint, peppermint, acacia, coffee, celery, sandalwood, and cocoa.

[0030] Other examples of flavoring substances include animal flavorings such as musk, ambergris, civet, and castoreum.

[0031] Other examples of the flavoring substance include alcohols such as geraniol, linalool, anethole, and eugenol, aldehydes such as vanillin, benzaldehyde, and anisaldehyde, and esters such as isoamyl acetate, linalyl acetate, isoamyl propionate, and linalyl butyrate.

[0032] In one embodiment, the tobacco medium portion 120 also includes granular tobacco material, which may have a diameter of about 0.1 mm to about 1.2 mm. More preferably, the granular tobacco material may have a diameter of about 0.3 mm to about 0.6 mm.

[0033] In one embodiment, the tobacco material also includes a variety of tobacco particles.

[0034] For example, the tobacco particles may be tobacco leaf shreds, tobacco stems, and / or tobacco fines produced during tobacco processing. The tobacco particles may also include ground tobacco leaf shreds, ground reconstituted tobacco, etc. For example, the tobacco particles may also include at least one of flue-cured powder, burley powder, fire-cured powder, sun-cured powder, and air-cured powder.

[0035] In one embodiment, the tobacco material also includes a pH adjusting agent that adjusts the pH of the tobacco material to an alkaline level.

[0036] For example, the pH adjusting agent may include, but is not limited to, at least one of potassium carbonate (K2CO3), sodium bicarbonate (NaHCO3), and mixtures thereof. By adjusting the pH of the tobacco substance to the alkaline side via the pH adjusting agent, the aerosol product 100 may transfer a sufficient amount of nicotine at low temperatures even without being directly heated by a separate heating element.

[0037] In one embodiment, the pH of the tobacco material can be adjusted via the pH adjusting agent, for example, to about 7 to about 11. More preferably, the pH of the tobacco material can be about 8 to about 9.

[0038] The more the pH of the tobacco substance is adjusted to the alkaline side by the pH adjuster (i.e., the higher the pH value of the tobacco substance), the more nicotine can be transferred to the tobacco substance. That is, if the aerosol product 100 is a non-heating aerosol product, if the pH of the tobacco substance is not adjusted to the alkaline side (i.e., if the pH of the tobacco substance is closer to a weak acidity), the nicotine release rate at low temperatures will be slow and the amount of nicotine transferred will be small. This may hinder the user's smoking satisfaction.

[0039] However, if the pH value of the tobacco material is high, nicotine may be continuously released from the tobacco material while the aerosol product 100 is stored, and the actual amount of nicotine transferred may then be reduced when the aerosol product 100 is actually used.

[0040] Furthermore, if the pH value of the tobacco substance is too high, an unpleasant odor may be generated from the aerosol product 100, hindering the user's smoking experience. Therefore, if the aerosol product 100 is a non-heating aerosol product, the amount of nicotine delivered and the user's smoking satisfaction may be improved if the pH value of the tobacco substance is about 7 to about 11, and more preferably about 8 to about 9. A detailed description of this will be provided below with reference to FIG. 6.

[0041] In one embodiment, the tobacco material does not include a binder to adjust the overall particle size, porosity, etc. of the tobacco material.

[0042] For example, when the tobacco material is manufactured through a mixing step of the tobacco material raw materials, an extrusion step (e.g., wet extrusion or dry extrusion), and a subsequent spheronization step using a rotating plate, the particle size, porosity, etc. of the tobacco material granules can be adjusted through the above-mentioned series of steps. In other words, since the particle size, porosity, etc. of the granules can be adjusted even if a binder is omitted in the manufacture of granular tobacco material, the amount of materials required in the manufacture of the tobacco material according to the present disclosure can be reduced, thereby reducing manufacturing costs.

[0043] In one embodiment, the tobacco medium portion 120 also includes at least one of an acetate filter formed from cellulose acetate tow and a paper filter formed from paper.

[0044] For example, when the tobacco medium portion 120 includes at least one of an acetate filter and a paper filter, the filter may be filled with granular tobacco material. In this case, the tobacco material may be filled in the filter at a concentration of about 2 mg / mm to about 8 mg / mm. More preferably, the tobacco material may be filled in the filter at a concentration of about 4 mg / mm to about 6 mg / mm.

[0045] When the pH of the tobacco material contained in the tobacco medium portion 120 is adjusted to the alkaline side using a pH adjuster, the amount of nicotine released from the tobacco material at low temperatures can be increased. Therefore, when the tobacco medium portion 120 is manufactured by filling at least one of an acetate filter and a paper filter with a pH-adjusted tobacco material, the nicotine released from the tobacco material can be absorbed by or retained in the acetate filter or paper filter. Therefore, the released nicotine can be prevented from escaping from the aerosol product 100. A detailed description of this will be provided below with reference to Figures 4 and 5.

[0046] In one embodiment, the filter portion 130 may be disposed at a position facing the front-end plug 110, with the tobacco medium portion 120 at the center. The filter portion 130 may filter at least one substance contained in mainstream smoke, including aerosols, generated from the tobacco medium portion 120.

[0047] In one embodiment, the filter unit 130 may be embodied in various shapes. For example, the filter unit 130 may be a cylindrical rod, a tubular rod having a hollow inside, or a recessed rod.

[0048] In one embodiment, the filter unit 130 includes one of an acetate filter made of cellulose acetate tow and a paper tube filter made of paper. In this case, when the filter unit 130 includes an acetate filter made of cellulose acetate tow, the filter unit 130 may be configured to generate a flavor.

[0049] For example, if the filter unit 130 includes an acetate filter, a flavoring liquid containing a flavoring substance is sprayed onto the acetate filter, and separate fibers coated with the flavoring liquid may be contained within the acetate filter. For another example, if the filter unit 130 includes an acetate filter, the acetate filter may include a capsule containing a flavoring substance. The flavoring substance that may be contained in the filter unit 130 may be the same as or similar to the flavoring substance that may be contained in the front-end plug 110.

[0050] In one embodiment, one of the front end plug 110 and the filter portion 130 also contains a flavoring substance.

[0051] For example, if the front-end plug 110 contains a capsule containing a flavoring substance or a fiber coated with a flavoring liquid containing a flavoring substance, the filter portion 130 does not contain a flavoring substance. In other words, if the front-end plug 110 contains a flavoring substance, the filter portion 130 may include a recessed rod made of cellulose acetate tow or a paper tube made of paper.

[0052] For example, if the filter portion 130 includes a capsule containing a flavoring substance or includes fibers coated with a flavoring liquid containing a flavoring substance, the front-end plug 110 does not include a flavoring substance. In other words, if the filter portion 130 includes a flavoring substance, the front-end plug 110 may include an acetate filter made of cellulose acetate tow or a paper tube made of paper.

[0053] The aerosol product 100 may be manufactured in a cylindrical shape. In such a case, the length of the aerosol product 100 may be about 20 mm to about 60 mm. For example, the length of the front end plug 110 may be about 5 mm to about 15 mm, the length of the tobacco medium portion 120 may be about 10 mm to about 30 mm, and the length of the filter portion 130 may be about 5 mm to about 15 mm. However, the lengths of the aerosol product 100 and its constituent elements are not limited thereto and may vary depending on the manufacturer's design.

[0054] Figure 2 is a diagram illustrating an aerosol product including a tobacco medium portion having two segments according to one embodiment. Figures 3A to 3C are longitudinal cross-sectional views taken along line X-X' of an aerosol product according to one embodiment.

[0055] 2, the aerosol production article 100 also includes a front-end plug 110, a tobacco medium portion 120, and a filter portion 130. In FIG. 2, the front-end plug 110 is illustrated as including a paper filter (e.g., a paper tube) formed from paper, and the filter portion 130 is illustrated as including an acetate filter containing a capsule 132 containing a flavoring substance, but is not limited thereto. In other embodiments, the front-end plug 110 is illustrated as including an acetate filter containing a capsule 132 containing a flavoring substance, and the filter portion 130 is illustrated as including a recessed rod formed from cellulose acetate tow.

[0056] In one embodiment, the tobacco medium portion 120 includes two segments each including a different element. For example, the first segment 140 of the tobacco medium portion 120 includes a tobacco substance 122, and the second segment 150 includes a cooling element 126. In this case, the cooling element 126 may be either a tube filter or a paper tube filter, and the resistance to drawing of the aerosol product 100 may be reduced through the cooling element 126.

[0057] 2 and 3A, the first segment 140 including the tobacco substance 122 may be disposed in section A of the tobacco medium portion 120, and the second segment 150 including the cooling element 126 may be disposed in section B of the tobacco medium portion 120. Therefore, outside air introduced through the front-end plug 110 is mixed with components such as nicotine released from the tobacco substance 122 of the first segment 140, and then passes sequentially through the second segment 150 and the filter portion 130.

[0058] 2 and 3B, the second segment 150 including the cooling element 126 may be disposed in section A of the tobacco medium portion 120, and the first segment 140 including the tobacco substance 122 may be disposed in section B of the tobacco medium portion 120. Therefore, the outside air introduced through the front end plug 110 is cooled by the cooling element 126 of the second segment 150, and then passes sequentially through the first segment 140 and the filter portion 130.

[0059] In this case, the first segment 140 may be manufactured by filling the granular tobacco material 122 into a paper filter 124, but is not limited thereto. The first segment 140 may also be manufactured by filling the granular tobacco material 122 into an acetate filter, and a detailed description of this will be given later with reference to Figures 4 and 5.

[0060] In other embodiments, the tobacco medium portion 120 also includes two segments that contain the same element. For example, the first segment 140a and the second segment 140b of the tobacco medium portion 120 each also contain tobacco material 122.

[0061] 2 and 3C, the first segment 140a including the tobacco material 122 may be disposed in section A of the tobacco medium portion 120, and the second segment 140b including the tobacco material 122 may be disposed in section B of the tobacco medium portion 120. In one embodiment, the first segment 140a may be manufactured by filling the tobacco material 122 into an acetate filter, and the second segment 140b may be manufactured by filling the tobacco material 122 into a paper filter.

[0062] However, these are merely examples and are not intended to be limiting. In other embodiments, the first segment 140a may be manufactured by filling a paper filter with the tobacco material 122, and the second segment 140b may be manufactured by filling an acetate filter with the tobacco material 122. The first segment 140a and the second segment 140b may also be manufactured by filling an acetate filter with the tobacco material 122, or by filling a paper filter with the tobacco material 122.

[0063] FIG. 4 illustrates a cross-sectional view of a tobacco medium portion according to one embodiment.

[0064] 4, the tobacco medium portion 120a of the aerosol product (e.g., aerosol product 100 (FIG. 1)) may include a paper filter 124 and a tobacco substance 122 filled in the paper filter 124. For example, the paper filter 124 may be formed in the form of rolled up paper, with the tobacco substance 122 filled in the spaces between the rolled up paper.

[0065] In one embodiment, the tobacco medium portion 120a may be loaded into the paper filter 124 at a loading of about 2 mg / mm to about 8 mg / mm. More desirably, the tobacco medium portion 120a may be loaded into the paper filter 124 at a loading of about 4 mg / mm to about 6 mg / mm.

[0066] For example, if the tobacco medium portion 120a includes one segment made of tobacco material 122, like the tobacco medium portion in FIG. 3A or 3B, and the length of the one segment is about 5 mm to about 15 mm, the tobacco medium portion 120a can be filled with about 20 mg to about 90 mg of tobacco material 122.

[0067] As another example, if the tobacco medium portion 120a includes two segments of tobacco material 122, like the tobacco medium portion in FIG. 3C, and the lengths of the two segments are between about 10 mm and about 30 mm, the tobacco medium portion 120a can be filled with between about 40 mg and 180 mg of tobacco material 122.

[0068] In one embodiment, the paper filter 124 may be made of paper with a smooth surface rolled up, but is not limited thereto. In other embodiments, the paper filter 124 may be made of paper with a surface roughness equal to or greater than a specific value or crimped paper rolled up.

[0069] In one embodiment, the paper filter 124 may be manufactured in the form of a roll of paper having a horizontal length of about 5 mm to about 15 mm and a vertical length of about 100 mm to about 150 mm, but is not limited thereto, and the size of the paper may vary depending on the manufacturer's design.

[0070] In one embodiment, the tobacco material 122 is in granular form, and the diameter of the granules is about 0.1 mm to about 1.2 mm. More preferably, the diameter of the granules is about 0.3 mm to about 0.6 mm. When the diameter of the tobacco material 122 is within the range of about 0.1 mm to about 1.2 mm, and more preferably within the range of about 0.3 mm to about 0.6 mm, manufacturability of the tobacco medium portion 120a may be increased.

[0071] That is, when manufacturing the tobacco medium portion 120a, a paper filter 124 is manufactured in a rolled-up form, and when the tobacco material 122 is filled into the paper filter 124, the diameter of the tobacco material 122 must be within the range of about 0.1 mm to about 1.2 mm, and more preferably within the range of about 0.3 mm to about 0.6 mm, in order for it to be stably filled into the paper filter 124.

[0072] In one embodiment, the pH of the tobacco substance 122 is adjusted to the alkaline side via a pH adjuster, so that the tobacco substance 122 can release nicotine at a temperature substantially lower (e.g., about 25°C to about 120°C) than the temperature at which it is heated by the heating element (e.g., about 200°C or higher). In this case, the nicotine released from the tobacco substance 122 is absorbed by the paper filter 124 (or the paper filter 124 inhibits the release of nicotine from the tobacco substance 122), thereby improving the storage stability of the aerosol product (e.g., aerosol product 100 (FIG. 1)).

[0073] FIG. 5 illustrates a cross-sectional view of a tobacco medium portion according to another embodiment.

[0074] 5, the tobacco medium portion 120b of the aerosol product (e.g., aerosol product 100 (FIG. 1)) also includes an acetate filter 125 and a tobacco material 122 filled in the acetate filter 125. For example, the acetate filter 125 may be formed by a plurality of cellulose acetate tows 127, with the tobacco material 122 filled between the plurality of cellulose acetate tows 127.

[0075] In one embodiment, the tobacco medium portion 120b may be loaded within the acetate filter 125 at about 2 mg / mm to about 8 mg / mm. More desirably, the tobacco medium portion 120b may be loaded within the acetate filter 125 at about 4 mg / mm to 6 mg / mm.

[0076] In one embodiment, the acetate filter 125 may be constructed from, but is not limited to, a plurality of cellulose acetate tows having a mono denier of 9.0, a total denier of 25,000, and a Y-shaped cross-sectional configuration.

[0077] In one embodiment, the tobacco material 122 is in granular form, and the granules have a diameter of about 0.1 mm to about 1.2 mm. More preferably, the granules have a diameter of about 0.3 mm to about 0.6 mm. When the diameter of the tobacco material 122 is within the range of about 0.1 mm to about 1.2 mm, and more preferably within the range of about 0.3 mm to about 0.6 mm, manufacturability of the tobacco medium portion 120b may be increased.

[0078] That is, in manufacturing the tobacco medium portion 120b, a plurality of cellulose acetate tows 127 are bonded to form the acetate filter 125, and when the tobacco material 122 is filled into the acetate filter 125, the diameter of the tobacco material 122 must be within the range of about 0.1 mm to about 1.2 mm, and more preferably within the range of about 0.3 mm to about 0.6 mm, in order for it to be stably filled into the acetate filter 125.

[0079] In one embodiment, the pH of the tobacco substance 122 is adjusted to an alkaline side via a pH adjusting agent, thereby allowing the tobacco substance 122 to release nicotine at a substantially lower temperature (e.g., about 25°C to about 120°C) compared to the temperature at which it is heated by the heating element (e.g., about 200°C or higher).

[0080] In this case, the nicotine released from the tobacco material 122 is absorbed by the acetate filter 125 (or the acetate filter 125 inhibits the release of nicotine from the tobacco material 122), thereby improving the storage stability of the aerosol product (e.g., aerosol product 100 (Figure 1)).

[0081] FIG. 6 illustrates a graph of nicotine transfer with pH for an aerosol product according to one embodiment.

[0082] Referring to FIG. 6, when an aerosol product (e.g., aerosol product 100 (FIG. 1)) is a non-heating aerosol product, the amount of nicotine transferred from aerosol product 100 increases as the pH of the tobacco substance (e.g., tobacco substance 122 (FIGS. 3A to 3C)) contained in aerosol product 100 increases. That is, when the pH of tobacco substance 122 is 7 or higher, nicotine begins to be transferred from aerosol product 100 under low temperature conditions. In order to provide a significant amount of nicotine to the user, it is desirable for the pH of tobacco substance 122 to be 8 or higher.

[0083] As the pH value of the tobacco substance 122 increases, the amount of nicotine transferred from the tobacco substance 122 increases, but this can also be detrimental to the storage and preservation of the aerosol product 100, as an excessively large amount of nicotine may be released from the tobacco substance 122. Furthermore, if the pH value of the tobacco substance 122 is 10 or higher, an unpleasant odor may be emitted from the aerosol product 100.

[0084] Therefore, in terms of the preservation and storage properties of the aerosol product, prevention of unpleasant odors, and user satisfaction with smoking, it is desirable that the pH value of the tobacco substance 122 be within the range of 8 to 9.

[0085] Those skilled in the art will understand that the present invention may be embodied in various modified forms without departing from the essential characteristics described above. Therefore, the disclosed embodiments should be considered from an illustrative rather than a restrictive perspective. The scope of the invention is defined by the claims, not the foregoing description, and all differences within the scope of the claims should be construed as being within the scope of the invention.

Claims

1. In non-heated aerosol products, a front end plug for introducing ambient air into the interior of the aerosol-producing article; a tobacco medium portion containing granular tobacco material; a filter section disposed at a position facing the front end plug with the tobacco medium section at the center, the pH value of the tobacco material is between 7 and 11; the tobacco medium portion includes a paper filter in the form of a paper roll having a smooth surface; The aerosol product, wherein the tobacco material is filled into the gaps between the wound papers of the paper filter.

2. In non-heated aerosol products, a front end plug for introducing ambient air into the interior of the aerosol-producing article; a tobacco medium portion containing granular tobacco material; a filter section disposed at a position facing the front end plug with the tobacco medium section at the center, the pH value of the tobacco material is between 7 and 11; the tobacco medium portion includes an acetate filter formed by a plurality of cellulose acetate tows; The aerosol product has the tobacco material packed between the plurality of cellulose acetate tows.

3. 3. The aerosol product of claim 1 or claim 2, wherein the pH value of the tobacco material is between 8 and 9.

4. The tobacco medium portion comprises: a first segment comprising said tobacco material; and a second segment comprising a cooling element.

5. 5. The aerosol product of claim 4, wherein the cooling element is at least one of a tube structure formed by a polylactic acid (PLA) sheet and a paper tube structure formed by paper.

6. 5. The aerosol product of claim 4, wherein the first segment is positioned adjacent to the front end plug and the second segment is positioned adjacent to the filter portion.

7. 5. The aerosol product of claim 4, wherein the first segment is positioned adjacent to the filter portion and the second segment is positioned adjacent to the front end plug.

8. 3. The aerosol product of claim 1 or claim 2, wherein the diameter of the tobacco material is between 0.1 mm and 1.2 mm.

9. 3. The aerosol product of claim 1 or claim 2, wherein the diameter of the tobacco material is between 0.3 mm and 0.6 mm.

10. an aerosol product according to claim 1 or claim 2; and an aerosol generating device including a storage space for storing the aerosol product.

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