Sheet for aerosol-generating article and aerosol-generating article comprising same

Abstract

The present invention relates to a sheet for an aerosol-generating article and an aerosol-generating article comprising the same, in which the sheet has excellent stability and improved processability by using a moisture regulator.

Description

Technical Field

[0001] This invention relates to a sheet material for aerosol generating articles with excellent processability and stability, and aerosol generating articles comprising the same. Background Technology

[0002] In recent years, there has been a growing demand for alternative methods to overcome the drawbacks of conventional cigarettes. For example, there is an increasing demand for aerosol-generating articles that generate aerosols by heating a heating medium or other aerosol-generating substances, rather than methods that generate aerosols through the combustion of cigarettes.

[0003] On the other hand, aerosol-generated products contain tobacco leaves just like regular cigarettes, but tobacco leaves, in addition to nicotine, also have a unique aroma, which can cause users to smell an odor when smoking.

[0004] Existing technical documents Patent documents Korean Patent Publication No. 10-2022-0026430 (Publication Date: March 4, 2022) Summary of the Invention

[0005] Technical issues The present invention provides a sheet for aerosol generation articles and an aerosol generation article comprising the same. The sheet for aerosol generation articles utilizes a moisture regulator to improve processability while exhibiting excellent stability.

[0006] However, the technical problem of the present invention is not limited to the technical problem described above. Through the following description, those skilled in the art can clearly understand other technical problems that are not mentioned.

[0007] Solution to the problem According to a first aspect of the present invention, a sheet for aerosol-generating articles is provided, comprising: an active substance; an aerosol-forming substance; a support; and a moisture regulator comprising a compound represented by the following chemical formula 1: [Chemical Formula 1]

[0008] In the above chemical formula, R1 is hydrogen or hydroxyl, and R2 to R4 are each independently a carboxyl group (-CO2H). ;or R 11 R is a straight-chain or branched alkyl group having 1 to 3 carbon atoms. 12 It is a straight-chain or branched alkyl group having 3 to 12 carbon atoms.

[0009] According to a second aspect of the present invention, in the first aspect described above, the moisture regulator may comprise a compound represented by the following chemical formula 1-1: [Chemical Formula 1-1]

[0010] In the above chemical formula, R1 is a hydroxyl group, R 21 To R 23 Each is independently hydrogen; or a straight-chain or branched alkyl group having 1 to 3 carbon atoms; R 21 To R 23 At least one of them is a straight-chain or branched alkyl group having 1 to 3 carbon atoms.

[0011] According to a third aspect of the invention, in the first or second aspect described above, the moisture regulator may comprise a compound represented by the following chemical formulas 1-2: [Chemical Formula 1-2] In the above chemical formula, R 31 To R 33 Each is independently a straight-chain or branched alkyl group having 3 to 12 carbon atoms.

[0012] According to a fourth aspect of the present invention, in one of the first to third aspects described above, the content of the active substance may be 0.1 parts by weight or more and 8 parts by weight or less based on 100 parts by weight of the aerosol generating article sheet described above.

[0013] According to a fifth aspect of the present invention, in one of the first to fourth aspects described above, based on 100 parts by weight of the sheet for generating aerosol articles, the content of the aerosol-forming substance may be 5 parts by weight or more and 50 parts by weight or less.

[0014] According to a sixth aspect of the present invention, in any one of the first to fifth aspects described above, the content of the support can be 20 parts by weight or more and 80 parts by weight or less based on 100 parts by weight of the sheet for generating aerosol articles.

[0015] According to a seventh aspect of the present invention, in any one of the first to sixth aspects described above, the content of the moisture regulator may be 0.1 parts by weight or more and 5 parts by weight or less based on 100 parts by weight of the aerosol generating article sheet described above.

[0016] According to an eighth aspect of the present invention, in one of the first to seventh aspects described above, the weight ratio of the moisture regulator to the aerosol-forming substance may be from 1:3 to 1:100.

[0017] According to a ninth aspect of the present invention, in any one of the first to eighth aspects described above, the sheet for generating aerosol articles may further include fillers and adhesives.

[0018] According to the tenth aspect of the present invention, in the aforementioned ninth aspect, based on 100 parts by weight of the aforementioned aerosol generating article sheet, the content of the filler may be 3 parts by weight or more and 8 parts by weight or less, and the content of the adhesive may be 3 parts by weight or more and 15 parts by weight or less.

[0019] According to the eleventh aspect of the present invention, in any one of the first to tenth aspects described above, the contact angle with water may be 70° or more and 130° or less.

[0020] According to a twelfth aspect of the present invention, in any one of the first to eleventh aspects described above, the sheet for aerosol generating articles may further include an additive comprising at least one of a swelling agent, an emulsifier, a flavoring agent, an extract, and a vitamin component.

[0021] According to a thirteenth aspect of the present invention, an aerosol generating article is provided, comprising: a first portion; a second portion disposed on one side of the first portion; a third portion disposed on one side of the second portion; and a fourth portion disposed on one side of the third portion; wherein the second portion comprises a sheet for the aerosol generating article according to any one of the first to twelfth aspects.

[0022] Invention Effects The aerosol-generating article sheet according to an embodiment of the present invention can have excellent stability and processability by containing a specific type of moisture regulator.

[0023] Furthermore, the aerosol generating article according to an embodiment of the present invention can provide excellent stability and improved smoking performance by including the above-described aerosol generating article sheet.

[0024] The effects of the present invention are not limited to those described above; other effects not mentioned can be clearly understood by those skilled in the art through this specification and the accompanying drawings. Attached Figure Description

[0025] Figure 1 A perspective view showing an aerosol-generating article according to an embodiment of the present invention.

[0026] Figure 2 This is a schematic diagram illustrating an aerosol generating apparatus according to an embodiment of the present invention.

[0027] Figure 3 This is a schematic diagram illustrating an aerosol generating apparatus according to another embodiment of the present invention.

[0028] Figure 4 To show Figure 2 and Figure 3 A cross-sectional view of a modified example of a sheet material for generating aerosol articles. Detailed Implementation

[0029] The best way to implement the invention In this specification, unless otherwise explicitly stated, any statement indicating a singular number should be understood to include plural numbers.

[0030] As used herein, “comprising” and / or “including” means the presence of a particular proposed form, step, number, action, component, element and / or group thereof, and does not exclude the presence or addition of more than one other form, step, number, action, component, element and / or group thereof.

[0031] In this specification, "at least one of a, b and c" may include a, b or c alone, or may include two or more combinations selected from the group consisting of a, b and c.

[0032] In this specification, the terms "a and / or b" are used to mean "a or b" and "a and b".

[0033] The term "connection" in this specification means not only a direct connection between components, but also an indirect connection between components involving other components. Furthermore, the concept of "connection" in this specification includes not only structural matters, but also situations where one component is electrically connected to another. For example, a connection between a first component and a second component can mean that they are structurally connected directly or indirectly, or electrically connected.

[0034] When multiple embodiments are described in this specification, each embodiment may be combined unless explicitly stated otherwise. In this case, the effects of the invention can be defined as including the effects produced by each embodiment as well as the effects produced by organically combining each embodiment. For example, even though embodiments 1 and 2 are described independently in this specification, unless the context clearly indicates otherwise, embodiments 1 and 2 may be organically combined with each other, and the effects of the invention may include the effects produced by the combination of embodiments 1 and 2.

[0035] In this specification, terms such as “first,” “second,” “first,” “second,” “(S1),” and “(S2)” may modify various components regardless of their order and / or importance, but do not limit the components. These terms may be used to distinguish one component from another. For example, without departing from the scope of this disclosure, “first component” may be referred to as “second component,” and similarly, “second component” may also be referred to as “first component.”

[0036] In this document, the term "to" refers to a range of values ​​that include the lower and upper limits specified before or after the term. When multiple values ​​are mentioned as the upper or lower limit of any range, the range described herein can be understood as a range with any one of the mentioned upper limits as its upper limit and any one of the mentioned lower limits as its lower limit. For example, when describing a to b or c to d in the specification, it can be understood as describing a above and below b, a above and below d, c above and below d, or c above and below b.

[0037] As used in this paper, degree terms such as “about” and “substantially” indicate a reasonable amount of deviation from the term they modify such that the final result is not significantly altered. These terms can be interpreted as including a deviation of at least ±5% or at least ±10%, provided that the deviation does not negate the meaning of the word they modify.

[0038] In this specification, "tobacco substance" is not specifically limited and may include tobacco raw materials such as tobacco leaves and stems, and substances obtained from their processing. For example, the aforementioned tobacco substance may include tobacco leaves; puffed tobacco stems; tobacco shreds such as shredded tobacco leaves or shredded leaf sheets; tobacco sheets such as leaf sheets; granular tobacco; or liquid tobacco compositions, etc. For example, the state of the aforementioned tobacco substance is not specifically limited and may be solid or liquid.

[0039] In this specification, "sheet" can be defined as a sub-sheet having width, length, and thickness, or a laminate composed of two or more such sub-sheets. The shape of the sheet is not particularly limited; it can be a single sheet with a crisscrossed shape, or a laminate composed of two or more cut sub-sheets. For example, when two or more cut sub-sheets are laminated, each sub-sheet can also be in a crisscrossed shape.

[0040] In this specification, "upstream" or "upstream direction" can refer to a direction away from the smoker's mouth, while "downstream" or "downstream direction" can refer to a direction closer to the smoker's mouth. The terms "upstream" and "downstream" can be used to describe the relative positions of the elements constituting an aerosol-generating article.

[0041] In this specification, "longitudinal direction" can refer to the direction corresponding to the longitudinal axis of the aerosol-generating article.

[0042] In this specification, the "weight-average molecular weight" of a compound can be calculated using the compound's molecular weight and molecular weight distribution. The weight-average molecular weight can be calculated using methods and apparatus used in the art. For example, depending on the properties of the compound, it can be analyzed using gel permeation chromatography (GPC) or gel filtration chromatography (GFC). For instance, in the GPC analytical method, tetrahydrofuran (THF) and the compound can be added to a 1 ml glass vial to prepare a sample solution with a compound concentration of 1% by weight. Then, a standard sample (polystyrene) and the sample solution are filtered through a 0.45 μm filter and injected into the GPC injector. The elution time of the sample solution is then compared with the calibration curve of the standard sample to obtain the compound's molecular weight and molecular weight distribution. In this case, an Infinity II 1260 (Agilent Technologies) can be used as the analytical instrument, with a flow rate set to 1.00 mL / min and a column temperature set to 40.0 °C. Alternatively, in the GFC analysis method, an Agilent 1200 Series HPLC system can be used as the column, with a flow rate of 1 mL / min, a mobile phase of 0.02% sodium azide, and an ELSD (Evaporative Light Scattering Detector, Altech) detector. The calibration curve can be obtained using pullullan.

[0043] The structure of the invention will be described in more detail below with reference to the accompanying drawings.

[0044] Sheets for aerosol generation One embodiment of the present invention provides a sheet for aerosol-generating articles, comprising: an active substance; an aerosol-forming substance; a support; and a moisture regulator, comprising a compound represented by the following chemical formula 1: [Chemical Formula 1]

[0045] In the above chemical formula, R1 is hydrogen or hydroxyl, and R2 to R4 are each independently a carboxyl group (-CO2H). ;or R 11 R is a straight-chain or branched alkyl group having 1 to 3 carbon atoms. 12 It is a straight-chain or branched alkyl group having 3 to 12 carbon atoms.

[0046] The aerosol-generating article sheet according to an embodiment of the present invention can have excellent stability and processability by containing a specific type of moisture regulator.

[0047] Active substances According to one embodiment of the present invention, the aforementioned sheet for aerosol generating articles includes an active substance. Specifically, the aforementioned sheet for aerosol generating articles includes an active substance for delivering nicotine or nicotine salts to a user.

[0048] In this specification, "active substance" may include alkaloid compounds that are delivered to the user when the aerosol-generating article is heated in an aerosol-generating device. Specifically, the aforementioned active substance may be defined as containing at least one of nicotine, nicotine derivatives, and nicotine salts. In this case, when nicotine combines with organic acids, the pH value of nicotine decreases, thereby delivering it to the user in the form of nicotine salts, which have a higher absorption rate by the human body.

[0049] According to one embodiment of the present invention, based on 100 parts by weight of the aforementioned aerosol-generating article sheet, the content of the active substance can be 0.1 parts by weight or more and 8 parts by weight or less, 0.5 parts by weight or more and 7 parts by weight or less, 0.9 parts by weight or more and 6 parts by weight or less, 0.9 parts by weight or more and 5 parts by weight or less, 0.9 parts by weight or more and 4 parts by weight or less, or 0.9 parts by weight or more and 3 parts by weight or less. Furthermore, based on the total weight of the aforementioned aerosol-generating article sheet, the content of the active substance can be 0.1% by weight or more and 8% by weight or less, 0.5% by weight or more and 7% by weight or less, 0.9% by weight or more and 6% by weight or less, 0.9% by weight or more and 5% by weight or less, 0.9% by weight or more and 4% by weight or less, or 0.9% by weight or more and 3% by weight or less. By adjusting the content of the active substance within the aforementioned numerical range, the active substance can be adequately delivered to the user's mouth, thereby fully achieving the satisfaction of smoking.

[0050] According to one embodiment of the present invention, based on 100 parts by weight of the aforementioned aerosol-generating article sheet, the nicotine content can be 0.1 parts by weight or more and 3 parts by weight or less, 0.5 parts by weight or more and 2 parts by weight or less, 0.9 parts by weight or more and 2 parts by weight or less, or 0.9 parts by weight or more and 1.5 parts by weight or less. Furthermore, based on the total weight of the aforementioned aerosol-generating article sheet, the nicotine content can be 0.1% by weight or more and 3% by weight or less, 0.5% by weight or more and 2% by weight or less, 0.9% by weight or more and 2% by weight or less, or 0.9% by weight or more and 1.5% by weight or less. By controlling the nicotine content within the aforementioned range, nicotine or nicotine salts can be adequately delivered to the user's mouth, effectively providing the user with a satisfactory taste and excellent smoking performance.

[0051] According to one embodiment of the present invention, based on 100 parts by weight of the above-mentioned aerosol-generating article sheet, the content of the organic acid can be 0.1 parts by weight or more and 5 parts by weight or less, 0.5 parts by weight or more and 4 parts by weight or less, 0.9 parts by weight or more and 3 parts by weight or less, or 0.9 parts by weight or more and 2 parts by weight or less. Furthermore, based on the total weight of the above-mentioned aerosol-generating article sheet, the content of the organic acid can be 0.1% by weight or more and 5% by weight or less, 0.5% by weight or more and 4% by weight or less, 0.9% by weight or more and 3% by weight or less, or 0.9% by weight or more and 2% by weight or less. According to one embodiment of the present invention, by adjusting the content of the organic acid to the above-mentioned numerical range, the pH value of nicotine is sufficiently reduced, so that the nicotine salt in the salt state can be effectively delivered to the user's mouth.

[0052] According to one embodiment of the present invention, the aforementioned organic acid may include, selected from citric acid, benzoic acid, lactic acid, salicylic acid, lauric acid, sorbic acid, levulinic acid, pyruvic acid, formic acid, acetic acid, propionic acid, butyric acid, valeric acid, caproic acid, caprylic acid, capric acid, myristic acid, palmitic acid, stearic acid, oleic acid, linoleic acid, linolenic acid, phenylacetic acid, tartaric acid, succinic acid, fumaric acid, and gluconic acid. At least one of the group consisting of citric acid, malonic acid, and malic acid; or their hydrates. Specifically, the above-mentioned organic acids may include citric acid and citric acid hydrate, and more specifically, the above-mentioned organic acids may include citric acid monohydrate. According to one embodiment of the present invention, when citric acid or citric acid monohydrate is used as the above-mentioned organic acid, the pH value of nicotine can be lowered, thereby further improving the absorption rate in the human body.

[0053] The hydrates of the aforementioned organic acids can be any of the factors affecting the moisture content of sheets used for aerosol-generating articles. By using the hydrates of the aforementioned organic acids, the burning sensation felt by the user can be minimized, and sheets used for aerosol-generating articles with excellent mechanical properties (e.g., they do not tear when rolled up) can be achieved.

[0054] Aerosol-forming substances In this specification, "aerosol" can be defined as a mixture of fine solid particles or droplets in air or other gases that are in a suspended state.

[0055] According to one embodiment of the present invention, the sheet for aerosol generating articles includes an aerosol-forming substance that can generate aerosols when inserted into an aerosol generating apparatus and heated. Furthermore, the aforementioned aerosol-forming substance not only generates aerosols but also serves as a factor in adjusting the moisture content of the sheet for aerosol generating articles, simultaneously influencing the burning sensation experienced by the user during smoking and the rollability of the sheet for aerosol generating articles.

[0056] According to one embodiment of the present invention, based on 100 parts by weight of the above-mentioned sheet for aerosol generation articles, the content of the aerosol-forming substance may be 5 parts by weight or more and 50 parts by weight or less, 8 parts by weight or more and 47 parts by weight or less, 10 parts by weight or more and 45 parts by weight or less, 12 parts by weight or more and 40 parts by weight or less, 14 parts by weight or more and 38 parts by weight or less, or 15 parts by weight or more and 35 parts by weight or less. Specifically, based on 100 parts by weight of the above-mentioned sheet for aerosol generation articles, the content of the aerosol-forming substance may be 20 parts by weight or more and 30 parts by weight or less, 23 parts by weight or more and 25 parts by weight or less, or 27 parts by weight or more and 30 parts by weight or less. Furthermore, based on the total weight of the sheet for aerosol-generating articles, the content of the aerosol-forming substance can be 5% or more and 50% or less by weight, 8% or more and 47% or less by weight, 10% or more and 45% or less by weight, 12% or more and 40% or less by weight, 14% or more and 38% or less by weight, or 15% or more and 35% or less by weight. Specifically, based on the total weight of the sheet for aerosol-generating articles, the content of the aerosol-forming substance can be 20% or more and 30% or less by weight, 23% or more and 25% or less by weight, or 27% or more and 30% or less by weight. By controlling the content of the aerosol-forming substance within the above-mentioned range, aerosols can be sufficiently generated when the sheet for aerosol-generating articles is heated, thereby promoting the migration of active substances.

[0057] For example, the aforementioned aerosol-forming substance may include at least one selected from the group consisting of glycerin, propylene glycol, ethylene glycol, dipropylene glycol, diethylene glycol, triethylene glycol, tetraethylene glycol, and oleyl alcohol, and more specifically, may include glycerin.

[0058] support According to one embodiment of the present invention, the sheet for aerosol generation articles may include a support. The support may be a component forming the basic framework of the sheet for aerosol generation articles.

[0059] In this specification, "water insoluble" can refer to a solute dissolved in 100g of water at 20°C in amounts of 10g or less, 5g or less, 1g or less, 0.1g or less, 0.01g or less, 0.001g or less, or 0g. The following water insoluble porous materials may have the above-mentioned solubility ranges in water.

[0060] According to one embodiment of the present invention, the support may comprise a water-insoluble porous material. This water-insoluble porous material can reversibly adsorb active substances, aerosol-forming substances, and the like. That is, when storing the aerosol-generating article sheet, the volatilization of active substances, aerosol-forming substances, and additives from the aerosol-generating article sheet can be minimized. Furthermore, when the aerosol-generating article sheet is heated, the active substances, aerosol-forming substances, and additives adsorbed on the water-insoluble porous material can desorb from the water-insoluble porous material and aerosolize.

[0061] According to one embodiment of the present invention, if the aforementioned water-insoluble porous material is capable of reversibly adsorbing active substances, aerosol-forming substances, and other components, then substances employed in the art can be used without limitation. For example, the aforementioned water-insoluble porous material may include at least one of cellulose-based substances and cellulose derivatives. For example, the aforementioned cellulose-based substances may refer to a network-like polysaccharide composed of linear chains of D-glucose units linked by β-glycosidic bonds. The aforementioned cellulose derivatives are substances based on the aforementioned cellulose-based substances and employing at least one of the following: introduction of functional groups, oxidation, reduction, and atomic substitution. For example, the aforementioned cellulose derivatives may be esterified cellulose or etherified cellulose. Specifically, the aforementioned water-insoluble porous material may include microcrystalline cellulose (MCC), but the types of the aforementioned water-insoluble porous material are not limited to this.

[0062] According to one embodiment of the present invention, based on 100 parts by weight of the above-mentioned sheet for aerosol generation articles, the content of the support can be 20 parts by weight or more and 80 parts by weight or less. Specifically, based on 100 parts by weight of the above-mentioned sheet for aerosol generation articles, the content of the support can be 30 parts by weight or more and 70 parts by weight or less, 40 parts by weight or more and 60 parts by weight or less, 40 parts by weight or more and 50 parts by weight or less, 30 parts by weight or more and 50 parts by weight or less, or 50 parts by weight or more and 80 parts by weight or less. Furthermore, based on the total weight of the above-mentioned sheet for aerosol generation articles, the content of the support can be 20% by weight or more and 80% by weight or less, 30% by weight or more and 70% by weight or less, 40% by weight or more and 60% by weight or less, 40% by weight or more and 50% by weight or less, 30% by weight or more and 50% by weight or less, or 50% by weight or more and 80% by weight or less. When the content of the aforementioned support is within the aforementioned range, not only can the mechanical properties of the sheet for aerosol generation be ensured, but the volatilization of active substances, aerosol-forming substances, etc., can also be minimized, and the strength and durability of the sheet for aerosol generation can be effectively improved. Furthermore, by adjusting the content of the aforementioned support to the aforementioned range, aerosols can be effectively generated when the sheet for aerosol generation is heated.

[0063] Moisture regulator According to one embodiment of the present invention, the aforementioned sheet for aerosol generation includes a moisture regulator. Specifically, the moisture regulator includes a compound represented by the following chemical formula 1.

[0064] [Chemical Formula 1]

[0065] In the above chemical formula, R1 is hydrogen or hydroxyl, and R2 to R4 are each independently a carboxyl group (-CO2H). ;or R 11 R is a straight-chain or branched alkyl group having 1 to 3 carbon atoms. 12 It is a straight-chain or branched alkyl group having 3 to 12 carbon atoms. Specifically, the above-mentioned R 11 The number of alkyl carbon atoms can be 1 to 2 or 2 to 3, while the above R 12 The number of carbon atoms in the alkyl group can be 5 to 10, 7 to 10, 3 to 10, 5 to 9, 7 to 12, or 7 to 9. In the above chemical formula, " " indicates the bonding position.

[0066] By using a moisture regulator comprising a compound represented by the above-described chemical formula 1, the storage stability and processability of the aforementioned aerosol-generating article sheet can be improved. Specifically, because the aforementioned aerosol-generating article sheet contains the moisture regulator, its moisture-proof properties can be improved. Therefore, the aforementioned aerosol-generating article sheet exhibits excellent long-term storage reliability and effectively inhibits deformation or damage of the sheet when stored under humid conditions.

[0067] According to one embodiment of the present invention, at least two of R2 to R4 may be the same. When using a moisture regulator comprising at least two identical compounds represented by the above-described chemical formula 1 among R2 to R4, the storage stability and processability of the above-described aerosol-generating articles sheet can be effectively improved.

[0068] According to one embodiment of the present invention, the moisture regulator may include a compound represented by the following chemical formula 1-1.

[0069] [Chemical Formula 1-1]

[0070] In the above chemical formula 1-1, R1 is a hydroxyl group, R 21 To R 23 Each is independently hydrogen or a straight-chain or branched alkyl group having 1 to 3 carbon atoms, R 21 To R 23 At least one of them is a straight-chain or branched alkyl group having 1 to 3 carbon atoms. Specifically, the above R 21 To R 23 The number of carbon atoms in each alkyl group can independently be 1 to 2, or 2 to 3. Furthermore, R 21 To R 23 At least two of them can each be independently a straight-chain or branched alkyl group having 1 to 3 carbon atoms. Furthermore, when R... 21 To R 23 When each is an alkyl group independently, they can be identical to each other.

[0071] By using a moisture regulator comprising a compound represented by the above-described chemical formula 1-1, the moisture-resistant properties of the aforementioned aerosol-generating article sheet can be improved, and the moisture content of the aforementioned aerosol-generating article sheet can be easily adjusted. Furthermore, by using a moisture regulator comprising a compound represented by the above-described chemical formula 1-1, an aerosol-generating article sheet with excellent long-term storage reliability can be achieved.

[0072] According to one embodiment of the present invention, the moisture regulator may include compounds represented by the following chemical formulas 1-2.

[0073] [Chemical Formula 1-2] In the above chemical formulas 1-2, R 31 To R 33 Each is independently a straight-chain or branched alkyl group having 3 to 12 carbon atoms. Specifically, R 31 To R 33 The number of carbon atoms in the alkyl group can be independently 5 to 10, 7 to 10, 3 to 10, 5 to 9, 7 to 12, or 7 to 9. Furthermore, R... 31 To R 33 At least two of them can be the same as each other. And, R 33 The number of carbon atoms in an alkyl group can be greater than R. 31 and R 32 The number of alkyl carbon atoms. When using moisture regulators including compounds represented by the above chemical formulas 1-2, the storage stability and processability of the above-mentioned aerosol-generating articles sheets can be effectively improved.

[0074] According to one embodiment of the present invention, based on 100 parts by weight of the above-mentioned sheet for aerosol generation articles, the content of the moisture regulator may be 0.1 parts by weight or more and 5 parts by weight or less. Specifically, based on 100 parts by weight of the above-mentioned sheet for aerosol generation articles, the content of the moisture regulator may be 0.5 parts by weight or more and 4.5 parts by weight or less, 1.5 parts by weight or more and 3.5 parts by weight or less, 0.5 parts by weight or more and 3 parts by weight or less, 2.5 parts by weight or more and 5 parts by weight or less, or 1 part by weight or more and 1.5 parts by weight or less. Furthermore, based on the total weight of the above-mentioned sheet for aerosol generation articles, the content of the moisture regulator may be 0.1% by weight or more and 5% by weight or less, 0.5% by weight or more and 4.5% by weight or less, 1.5% by weight or more and 3.5% by weight or less, 0.5% by weight or more and 3% by weight or less, 2.5% by weight or more and 5% by weight or less, or 1% by weight or more and 1.5% by weight or less. When the content of the aforementioned moisture regulator is within the aforementioned range, the moisture-proof properties of the aforementioned aerosol-generating article sheet can be improved, and the moisture content of the aforementioned aerosol-generating article sheet can be easily adjusted. Furthermore, by adjusting the content of the aforementioned moisture regulator to the aforementioned range, the long-term storage reliability of the aforementioned aerosol-generating article sheet can be further improved, and sheet deformation or damage can be effectively suppressed when stored under humid conditions.

[0075] According to one embodiment of the present invention, the weight ratio of the moisture regulator to the aerosol-forming substance can be from 1:3 to 1:100. Specifically, the weight ratio of the moisture regulator to the aerosol-forming substance can be from 1:5 to 1:80, 1:10 to 1:50, 1:20 to 1:30, 1:3 to 1:50, or 1:10 to 1:30. When the weight ratio of the moisture regulator to the aerosol-forming substance contained in the aerosol-generating article sheet is within the above range, the moisture-proof performance of the aerosol-generating article sheet can be improved, while aerosol formation is smooth when the sheet is heated, thereby achieving rich smoke migration performance.

[0076] filler According to one embodiment of the present invention, the above-mentioned sheet for aerosol generating articles may include fillers. The fillers can enhance the mechanical properties of the sheet for aerosol generating articles, such as strength and durability.

[0077] According to one embodiment of the present invention, the filler can be a non-tobacco material. Specifically, the filler can include at least one of cellulose-based materials and cellulose derivatives. For example, the cellulose-based material can refer to a network of polysaccharides composed of linear chains of D-glucose units linked by β-glycosidic bonds. The cellulose derivatives are substances based on the cellulose-based material and incorporating at least one of the following: introduction of functional groups, oxidation, reduction, and atomic substitution. For example, the cellulose derivatives can be esterified cellulose or etherified cellulose. For example, the filler can include at least one of wood fiber, wheat fiber, and pulp (e.g., wood pulp). By using the aforementioned types of fillers, the mechanical properties of the aerosol-generating sheet can be effectively improved.

[0078] According to one embodiment of the present invention, based on 100 parts by weight of the aforementioned sheet for aerosol generation, the content of the filler can be 3 parts by weight or more and 8 parts by weight or less. Specifically, based on 100 parts by weight of the aforementioned sheet for aerosol generation, the content of the filler can be 4 parts by weight or more and 7 parts by weight or less, 3 parts by weight or more and 4 parts by weight or less, or 5 parts by weight or more and 7 parts by weight or less. Furthermore, based on the total weight of the aforementioned sheet for aerosol generation, the content of the filler can be 3% by weight or more and 8% by weight or less, 4% by weight or more and 7% by weight or less, 3% by weight or more and 4% by weight or less, or 5% by weight or more and 7% by weight or less. When the content of the filler is within the aforementioned range, the filler can effectively improve the strength and durability of the aforementioned sheet for aerosol generation.

[0079] adhesives According to one embodiment of the present invention, the aforementioned sheet for generating aerosols may include an adhesive. The adhesive serves to stabilize the components in the aforementioned sheet for generating aerosols.

[0080] According to one embodiment of the present invention, the adhesive may comprise an adhesive substance that provides a flexible polymer matrix capable of forming a sheet shape. Specifically, the adhesive substance may include at least one selected from cellulose polymers, guar gum, xanthan gum, gum arabic, agar, pectin, and alginate.

[0081] According to one embodiment of the present invention, the cellulose polymer may include, for example, at least one of carboxymethyl cellulose (CMC), carboxyethyl cellulose (CEC), methyl cellulose (MC), ethyl cellulose (EC), hydroxymethyl cellulose (HEC), hydroxyethyl cellulose (HPC), hydroxypropyl cellulose (HPC), hydroxyethylmethyl cellulose (HEMC), and hydroxypropyl methyl cellulose (HPMC).

[0082] According to one embodiment of the present invention, the weight-average molecular weight of the above-mentioned adhesive substance may be 10,000 g / mol or more and 2,000,000 g / mol or less. Specifically, the weight-average molecular weight of the above-mentioned adhesive substance may be 20,000 g / mol or more and 1,800,000 g / mol or less, 30,000 g / mol or more and 1,600,000 g / mol or less, 100,000 g / mol or more and 1,500,000 g / mol or less, 200,000 g / mol or more and 700,000 g / mol or less, 10,000 g / mol or more and 700,000 g / mol or less, 20,000 g / mol or more and 500,000 g / mol or less, 30,000 g / mol or more and 200,000 g / mol or less, or 20,000 g / mol or more and less. Above and below 100,000 g / mol, above 10,000 g / mol and below 30,000 g / mol, above 30,000 g / mol and below 700,000 g / mol, above 1,000,000 g / mol and below 2,000,000 g / mol, above 1,200,000 g / mol and below 1,800,000 g / mol, above 1,400,000 g / mol and below 1,600,000 g / mol, above 1,000,000 g / mol and below 1,500,000 g / mol, or above 1,500,000 g / mol and below 2,000,000 g / mol.

[0083] When the weight-average molecular weight of the aforementioned adhesive material is within the above-mentioned range, the active substances and aerosol-forming substances in the aforementioned aerosol-generating article sheet can be stably present. This further improves the smoke-absorbing properties of the aerosol-generating article sheet.

[0084] According to one embodiment of the present invention, the weight-average molecular weight of the cellulose polymer serving as the above-mentioned adhesive material can be 10,000 g / mol or more and 700,000 g / mol or less. Specifically, the weight-average molecular weight of the cellulose polymer serving as the above-mentioned adhesive material can be 20,000 g / mol or more and 500,000 g / mol or less, 30,000 g / mol or more and 200,000 g / mol or less, 20,000 g / mol or more and 100,000 g / mol or less, 10,000 g / mol or more and 30,000 g / mol or less, or 30,000 g / mol or more and 700,000 g / mol or less. Furthermore, the weight-average molecular weight of the guar gum serving as the above-mentioned adhesive material can be 1,000,000 g / mol or more and 2,000,000 g / mol or less. Specifically, the weight-average molecular weight of guar gum, which is used as the aforementioned adhesive substance, can be 1,200,000 g / mol or more and 1,800,000 g / mol or less, 1,400,000 g / mol or more and 1,600,000 g / mol or less, 1,000,000 g / mol or more and 1,500,000 g / mol or less, or 1,500,000 g / mol or more and 2,000,000 g / mol or less.

[0085] According to one embodiment of the present invention, based on 100 parts by weight of the above-mentioned sheet for aerosol generation articles, the content of the adhesive can be 3 parts by weight or more and 15 parts by weight or less. Specifically, based on 100 parts by weight of the above-mentioned sheet for aerosol generation articles, the content of the adhesive can be 4 parts by weight or more and 12 parts by weight or less, 5 parts by weight or more and 10 parts by weight or less, 3 parts by weight or more and 8 parts by weight or less, or 4 parts by weight or more and 15 parts by weight or less. Furthermore, based on the total weight of the above-mentioned sheet for aerosol generation articles, the content of the adhesive can be 3% by weight or more and 15% by weight or less, 4% by weight or more and 12% by weight or less, 5% by weight or more and 10% by weight or less, 3% by weight or more and 8% by weight or less, or 4% by weight or more and 15% by weight or less. When the content of the adhesive is within the above range, the active substances, aerosol forming substances, and flavoring agents can be stably retained within the sheet for aerosol generation articles while ensuring the mechanical properties of the sheet for aerosol generation articles.

[0086] Expanding agent According to one embodiment of the present invention, the above-mentioned sheet for forming aerosol-generating articles may include a swelling agent. The swelling agent increases the volume of the sheet for forming aerosol-generating articles by increasing the total mass of the components other than water in the composition for forming the sheet. Furthermore, the swelling agent may not substantially increase the viscosity of the composition for forming the sheet.

[0087] According to one embodiment of the present invention, the aforementioned leavening agent may contain at least one of starch and starch hydrolysate. Starch hydrolysate refers to a substance obtained through a process involving starch hydrolysis. For example, starch hydrolysate may be a substance obtained by directly hydrolyzing starch (i.e., dextrin), or a substance obtained by heating starch followed by hydrolysis (i.e., indigestible dextrin). For example, the aforementioned leavening agent may contain dextrin. Specifically, the aforementioned leavening agent may contain at least one of cyclodextrin and maltodextrin. However, the types of dextrin are not limited to these.

[0088] According to one embodiment of the present invention, the aforementioned leavening agent may comprise a starch hydrolysate with a DE value of 1 or higher and 20 or lower. For example, the DE value of the starch hydrolysate may be 2 or higher and 18 or lower, 3 or higher and 15 or lower, 5 or higher and 10 or lower, 10 or higher and 20 or lower, 12 or higher and 18 or lower, 1 or higher and 5 or lower, or 1 or higher and 10 or lower. Specifically, the aforementioned starch hydrolysate may comprise at least one of dextrin having a DE value of 1 or higher and 5 or lower, and recalcitrant dextrin having a DE value of 10 or higher and 20 or lower. More specifically, the aforementioned leavening agent may comprise the aforementioned dextrin as a starch hydrolysate. By using a leavening agent comprising a starch hydrolysate having the aforementioned DE value, shrinkage of the aerosol-generating article sheet during manufacturing and storage can be prevented. This improves the processability of the aerosol-generating article sheet during manufacturing and enhances its storage stability.

[0089] DE is an abbreviation for dextrose equivalent. The DE value represents the degree of starch hydrolysis, i.e., the saccharification rate of starch. In this invention, the DE value is determined by the Willstatter-Schudel method. The Willstatter-Schudel method allows the DE value to be determined as a specific numerical value. The characteristics of hydrolyzed starch (starch hydrolysate), such as the molecular weight of the starch hydrolysate or the arrangement of the sugar molecules constituting the starch hydrolysate, are not constant for each molecule of the starch hydrolysate, but exist in the form of a certain distribution or variation. Due to the distribution or variation of starch hydrolysate characteristics, or differences in the cleavage intervals, each molecule of starch hydrolysate may exhibit different physical properties (e.g., DE value). As mentioned above, starch hydrolysate is a collection of molecules exhibiting different physical properties, but the result of the Willstatter-Schudel method (i.e., the DE value) is considered a representative value representing the degree of starch hydrolysis.

[0090] According to one embodiment of the present invention, based on 100 parts by weight of the aforementioned sheet for aerosol generation articles, the content of the expanding agent may be 1 part by weight or more and 20 parts by weight or less. Specifically, based on 100 parts by weight of the aforementioned sheet for aerosol generation articles, the content of the expanding agent may be 2 parts by weight or more and 15 parts by weight or less, 5 parts by weight or more and 10 parts by weight or less, 8 parts by weight or more and 20 parts by weight or less, 8 parts by weight or more and 15 parts by weight or less, 1 part by weight or more and 10 parts by weight or less, or 5 parts by weight or more and 20 parts by weight or less. Furthermore, based on the total weight of the aforementioned sheet for aerosol generation articles, the content of the expanding agent may be 1% by weight or more and 20% by weight or less, 2% by weight or more and 15% by weight or less, 5% by weight or more and 10% by weight or less, 8% by weight or more and 20% by weight or less, 8% by weight or more and 15% by weight or less, 1% by weight or more and 10% by weight or less, or 5% by weight or more and 20% by weight or less. When the content of the aforementioned expanding agent is within the aforementioned range, shrinkage of the sheet material during the manufacturing process and storage of aerosol-generating articles can be effectively prevented. Furthermore, by adjusting the content of the aforementioned filler to the aforementioned range, the flavor retention period of the sheet material for aerosol-generating articles can be extended, and the water solubility, thermal stability, and oxidation resistance of the flavor components can be improved.

[0091] According to one embodiment of the present invention, when the adhesive comprises an adhesive substance with a weight-average molecular weight of 250,000 g / mol or more and 2,000,000 g / mol or less, the content of the expanding agent may be 1 part by weight or more and 20 parts by weight or less based on 100 parts by weight of the sheet for aerosol generation. Furthermore, when the adhesive comprises an adhesive substance with a weight-average molecular weight of 250,000 g / mol or more and 2,000,000 g / mol or less, the content of the expanding agent may be 1% by weight or more and 20% by weight or less based on the total weight of the sheet for aerosol generation.

[0092] According to one embodiment of the present invention, when the adhesive comprises an adhesive substance having a weight-average molecular weight of 1,000,000 g / mol or more and 2,000,000 g / mol or less, the content of the expanding agent based on 100 parts by weight of the aerosol-generating article sheet may be 8 parts by weight or more and 20 parts by weight or less. Specifically, when the adhesive comprises guar gum having a weight-average molecular weight of 1,000,000 g / mol or more and 2,000,000 g / mol or less as the adhesive substance, the content of the expanding agent based on 100 parts by weight of the aerosol-generating article sheet may be 9 parts by weight or more and 17 parts by weight or less, 10 parts by weight or more and 15 parts by weight or less, 8 parts by weight or more and 10 parts by weight or less, 9 parts by weight or more and 12 parts by weight or less, or 8 parts by weight or more and 15 parts by weight or less. Furthermore, when the aforementioned adhesive contains guar gum as an adhesive substance with a weight-average molecular weight of 1,000,000 g / mol or more and 2,000,000 g / mol or less, the content of the aforementioned expanding agent can be 8% by weight or more and 20% by weight or less, 9% by weight or more and 17% by weight or less, 10% by weight or more and 15% by weight or less, 8% by weight or more and 10% by weight or less, 9% by weight or more and 12% by weight or less, or 8% by weight or more and 15% by weight or less, based on the total weight of the sheet for the aerosol-generated article. In this case, an expanding agent containing dextrin with a DE value of 1 or more and 5 or less can be used.

[0093] When using adhesive substances with the aforementioned weight-average molecular weight, the sheets used for aerosol-generating articles may exhibit a significant tendency to shrink during manufacturing and storage. Therefore, by adjusting the content of the aforementioned expanding agent to the above-mentioned range, the problem of sheet shrinkage during manufacturing and storage of the sheets used for aerosol-generating articles can be effectively suppressed.

[0094] According to one embodiment of the present invention, when the adhesive comprises an adhesive substance having a weight-average molecular weight of 250,000 g / mol or more and 700,000 g / mol or less, the content of the expanding agent based on 100 parts by weight of the sheet for aerosol generation can be 1 part by weight or more and less than 8 parts by weight. Specifically, when the adhesive comprises a cellulose polymer having a weight-average molecular weight of 250,000 g / mol or more and 700,000 g / mol or less as the adhesive substance, the content of the expanding agent based on 100 parts by weight of the sheet for aerosol generation can be 1 part by weight or more and less than 8 parts by weight, 2 parts by weight or more and 6 parts by weight or less, 3 parts by weight or more and 5 parts by weight or less, or 1 part by weight or more and 5 parts by weight or less. Furthermore, when the aforementioned adhesive contains guar gum as an adhesive substance with a weight-average molecular weight of 250,000 g / mol or more and 700,000 g / mol or less, the content of the aforementioned expanding agent can be 1% or more and less than 8% by weight, 2% or more and less than 6% by weight, 3% or more and less than 5% by weight, or 1% or more and less than 5% by weight, based on the total weight of the sheet for the aerosol-generated article. In this case, a expanding agent containing dextrin with a DE value of 1 or more and less than 5 can be used, thereby achieving excellent moisture absorption properties.

[0095] According to one embodiment of the present invention, when the adhesive comprises an adhesive substance having a weight-average molecular weight of 10,000 g / mol or more and 50,000 g / mol or less, the content of the expanding agent based on 100 parts by weight of the sheet for generating aerosol articles can be 0 parts by weight or more and less than 1.0 parts by weight, 0 parts by weight or more and less than 0.9 parts by weight, 0 parts by weight or more and less than 0.8 parts by weight, 0 parts by weight or more and less than 0.7 parts by weight, 0 parts by weight or more and less than 0.6 parts by weight, 0 parts by weight or more and less than 0.5 parts by weight, 0 parts by weight or more and less than 0.4 parts by weight, 0 parts by weight or more and less than 0.3 parts by weight, 0 parts by weight or more and less than 0.2 parts by weight, or 0 parts by weight or more and less than 0.1 parts by weight. Furthermore, when the adhesive comprises an adhesive substance with a weight-average molecular weight of 10,000 g / mol or more and 50,000 g / mol or less, the content of the expanding agent may be 0% or more and 1.0% or less, 0% or more and 0.9% or less, 0% or more and 0.8% or less, 0% or more and 0.7% or less, 0% or more and 0.6% or less, 0% or more and 0.5% or less, 0% or more and 0.4% or less, 0% or more and 0.3% or less, 0% or more and 0.2% or less, or 0% or more and 0.1% or less, based on the total weight of the sheet for the aerosol generating article. Specifically, when the adhesive comprises an adhesive substance with a weight-average molecular weight of 10,000 g / mol or more and 50,000 g / mol or less, the sheet for the aerosol generating article may not include the expanding agent. More specifically, when the adhesive comprises a cellulose polymer with a weight-average molecular weight of 10,000 g / mol or more and 50,000 g / mol or less as the adhesive material, the sheet of the above-mentioned aerosol generating article sheet may not include an expanding agent.

[0096] When using an adhesive substance having the aforementioned weight-average molecular weight, the tendency for sheet shrinkage during the manufacturing process and storage of aerosol-generating articles can be reduced. Therefore, by controlling the content of the aforementioned expanding agent within the aforementioned range, sheet shrinkage during the manufacturing process and storage of aerosol-generating articles can be suppressed, while simultaneously inducing an appropriate volume level in the aerosol-generating article sheet. This, in turn, improves the smoke extraction performance of the aerosol-generating article sheet.

[0097] That is, according to one embodiment of the present invention, by taking into account the weight-average molecular weight of the adhesive substance contained in the above-mentioned aerosol generating article sheet, the content of the above-mentioned expanding agent can be controlled, and the smoking performance can be improved while effectively suppressing the shrinkage of the aerosol generating article sheet.

[0098] additive According to one embodiment of the present invention, the aforementioned sheet for aerosol generation may contain additives. Specifically, the additives may contain at least one of emulsifiers, flavoring agents, extracts, and vitamin components. The additives may be contained in solid forms such as powder, granules, or sheets. Furthermore, the additives may also be contained in semi-solid forms such as gels or pastes. Additionally, the additives may be contained in liquid forms such as oils or dispersions. Furthermore, depending on the type of additive, it may also be contained in the form of an extract.

[0099] According to one embodiment of the present invention, the emulsifier described above enables the thorough mixing of a highly fat-soluble flavor enhancer with a water-soluble polysaccharide, thereby improving the aroma retention of the sheet material for aerosol-generated articles. Examples of emulsifiers include lecithin, but are not limited to this.

[0100] According to one embodiment of the present invention, the flavor enhancer may contain menthol, terpenes, terpenoids, eugenol, eucalyptol, brandy, natural plant-based flavor enhancers (e.g., cinnamon, sage, herbs, chamomile, rosemary, kudzu root, tsao, cloves, lavender, cardamom, nutmeg, bergamot, geranium, rose oil, lemon, orange, cinnamon, fennel, jasmine, ginger, coriander, parsley, spearmint, peppermint, cinnamon bark, coffee, celery, cassia, sandalwood, ylang-ylang, fennel, star anise, licorice, carob, etc.), and sugars ( Examples of flavorings include glucose, fructose, isomers, caramel, esters (e.g., isoamyl acetate, linaloyl acetate, isoamyl propionate, linaloyl butyrate), ketones (e.g., menthone, ionone, damascone, ethyl maltol), alcohols (e.g., geraniol, linalool, anethole, eugenol), aldehydes (e.g., vanillin, benzaldehyde, anisaldehyde), lactones (e.g., γ-undecyl lactone, γ-nonyl lactone), animal-derived flavorings (e.g., musk, ambergris, civet, castoreum), and hydrocarbons (e.g., limonene, pinene). Flavorings can be used in solid form or dissolved or dispersed in suitable solvents such as propylene glycol, ethanol, benzyl alcohol, and limonene triacetate. Additionally, fragrances that are easily dispersed in solvents by adding emulsifiers, such as hydrophobic or oil-soluble flavorings, can be used. These flavorings can be used alone or in mixtures. However, there are no restrictions on the types of flavoring agents mentioned above.

[0101] For example, the dosage form of the aforementioned flavoring agent is not particularly limited and can be solid, semi-solid, solution, or suspension. For example, the aforementioned solid may include at least one of powder and granule, and the aforementioned semi-solid may include at least one of gel and paste. For example, when the aforementioned flavoring agent is an herbal powder, the herbal powder can be prepared by washing, drying, and pulverizing at least one selected from the group consisting of peppermint, rosemary, lavender, rooibos tea, lemongrass, lemon balm, Earl Grey tea, peppermint, chamomile, coriander, and artemisia. Furthermore, depending on the type of substance used as a flavoring agent, the extract may be contained in solid, semi-solid, or liquid form.

[0102] According to one embodiment of the present invention, the extract may include at least one of vanilla extract, natural fruit extract, cocoa extract, honey extract, flower extract, and herbal extract, but is not limited to the types of extracts mentioned above.

[0103] According to one embodiment of the present invention, the vitamin components may include at least one of vitamin A, vitamin B, vitamin C and vitamin E, but are not limited to the types of vitamin components mentioned above.

[0104] According to one embodiment of the present invention, based on 100 parts by weight of the aforementioned aerosol-generating article sheet, the content of the additive may be 0.1 parts by weight or more and 15 parts by weight or less. Specifically, based on 100 parts by weight of the aforementioned aerosol-generating article sheet, the content of the additive may be 0.5 parts by weight or more and 12 parts by weight or less, 1 part by weight or more and 7 parts by weight or less, 0.1 parts by weight or more and 5 parts by weight or less, or 3 parts by weight or more and 15 parts by weight or less. Furthermore, based on the total weight of the aforementioned aerosol-generating article sheet, the content of the additive may be 0.1% by weight or more and 15% by weight or less, 0.5% by weight or more and 12% by weight or less, 1% by weight or more and 7% by weight or less, 0.1% by weight or more and 5% by weight or less, or 3% by weight or more and 15% by weight or less. When the content of the additive is within the aforementioned range, the persistence of aroma and / or flavor migrating in the aerosol-generating article sheet can be provided. On the other hand, it not only enables high-concentration applications, but also allows for adjustment of the intensity of aroma and / or flavor based on the added concentration.

[0105] Moisture According to one embodiment of the present invention, the aforementioned sheet for aerosol-generating articles may contain water (moisture) that affects the burning sensation and mechanical properties felt by the user of the aerosol-generating article. Specifically, when the moisture content of the aforementioned sheet for aerosol-generating articles is high, the winding properties may be excellent, but the amount of water vapor evaporated increases, leading to a problem of increased intensity of the burning sensation felt by the user. Conversely, when the moisture content of the sheet for aerosol-generating articles is low, the amount of water vapor evaporated decreases, and the intensity of the burning sensation decreases, but problems such as tearing and a decrease in mechanical properties occur during sheet winding. That is, there is a trade-off between the burning sensation performance and the mechanical properties, where an increase in one leads to a decrease in the other.

[0106] According to one embodiment of the present invention, based on 100 parts by weight of the aforementioned aerosol-generating article sheet, the moisture content of the aerosol-generating article sheet can be 3 parts by weight or more and 15 parts by weight or less, 5 parts by weight or more and 8 parts by weight or less, 5 parts by weight or more and 12 parts by weight or less, 4 parts by weight or more and 12 parts by weight or less, 4.2 parts by weight or more and 8 parts by weight or less, 5 parts by weight or more and 8 parts by weight or less, or 6 parts by weight or more and 7 parts by weight or less. Furthermore, based on the total weight of the aforementioned aerosol-generating article sheet, the moisture content can be 3% by weight or more and 15% by weight or less, 5% by weight or more and 8% by weight or less, 5% by weight or more and 12% by weight or less, 4% by weight or more and 12% by weight or less, 4.2% by weight or more and 8% by weight or less, 5% by weight or more and 8% by weight or less, or 6% by weight or more and 7% by weight or less. For example, the moisture content of the aforementioned aerosol-generating article sheet can be measured under conditions of 22.5°C and 40% relative humidity. According to one embodiment of the present invention, by adjusting the moisture content of the aerosol-generating article sheet to the aforementioned range, two performance characteristics that are in a trade-off can be simultaneously achieved. That is, according to one embodiment of the present invention, an aerosol-generating article sheet that minimizes the burning sensation felt by the user when smoking while possessing excellent mechanical properties can be achieved.

[0107] Tobacco substances According to one embodiment of the present invention, the above-mentioned sheet for aerosol generating articles may contain trace amounts of tobacco substances or may not contain tobacco substances. For example, the above-mentioned sheet for aerosol generating articles may be a sheet that does not contain tobacco substances.

[0108] According to one embodiment of the present invention, based on 100 parts by weight of the above-mentioned sheet for aerosol generation articles, the content of tobacco substances can be 1.0 parts by weight or less, 0.9 parts by weight or less, 0.8 parts by weight or less, 0.7 parts by weight or less, 0.6 parts by weight or less, 0.5 parts by weight or less, 0.4 parts by weight or less, 0.3 parts by weight or less, 0.2 parts by weight or less, 0.1 parts by weight or less, 0.01 parts by weight or less, or 0 parts by weight. For example, the content of tobacco substances contained in the above-mentioned sheet for aerosol generation articles can be 0 parts by weight.

[0109] Composition for forming sheet of aerosol-generating articles According to one embodiment of the present invention, the above-mentioned sheet for aerosol generating articles can be made from a composition for forming aerosol generating articles. Specifically, the above-mentioned sheet for aerosol generating articles may contain a dried product of the composition for forming aerosol generating articles. Therefore, the support, filler, aerosol forming substance, binder, moisture regulator, active substance, swelling agent, and additives included in the composition for forming aerosol generating articles according to this embodiment can be the same as those included in the composition for forming aerosol generating articles according to the above-mentioned embodiment.

[0110] Therefore, the description of the parts that are the same as those in the above embodiments will be omitted below.

[0111] According to one embodiment of the present invention, the above-described aerosol-generating article sheet-forming composition may include: a sheet-forming substance; and a solvent. Specifically, the sheet-forming substance may include: an active substance; an aerosol-forming substance; a support; and a moisture regulator comprising a compound represented by the above-described chemical formula 1. Furthermore, the sheet-forming substance may further include at least one of fillers, binders, expanding agents, and additives. In this case, the sheet-forming substance can be defined as all components included in the above-described aerosol-generating article sheet-forming composition except for the solvent.

[0112] According to one embodiment of the present invention, the drying temperature of the above-mentioned aerosol generating article sheet forming composition can be 80°C or higher and 150°C or lower, 85°C or higher and 145°C or lower, 90°C or higher and 140°C or lower, 95°C or higher and 135°C or lower, 100°C or higher and 130°C or lower, 105°C or higher and 120°C or lower, or 105°C or higher and 110°C or lower.

[0113] According to one embodiment of the present invention, the drying time of the above-mentioned aerosol generating article sheet forming composition can be 8 minutes or more and 15 minutes or less, 9 minutes or more and 14 minutes or less, 10 minutes or more and 13 minutes or less, 10 minutes or more and 12 minutes or less, or 10 minutes or more and 11 minutes or less, depending on the sheet thickness of 200 μm.

[0114] According to one embodiment of the present invention, by simultaneously adjusting the drying temperature and drying time of the above-mentioned aerosol generating article sheet forming composition to the above-mentioned range, the moisture content in the aerosol generating article sheet can be reduced to an appropriate level, thereby enabling the aerosol generating article to have excellent mechanical properties, not to tear during winding, and with adjustable heat intensity.

[0115] According to one embodiment of the present invention, the sheet for forming aerosol-generating articles may contain a solvent. The solvent may include a hydrophilic solvent, specifically, water. In the above-mentioned composition for forming aerosol-generating articles, based on 100 parts by weight of the composition, the content of the solvent may be 200 parts by weight or more and 1,000 parts by weight or less, 300 parts by weight or more and 750 parts by weight or less, 400 parts by weight or more and 500 parts by weight or less, or 400 parts by weight or more and 1,000 parts by weight or less. When the content of the solvent is within the above range, the sheet-forming material can be uniformly mixed in the above-mentioned composition for forming aerosol-generating articles, and the processability of the composition for forming aerosol-generating articles can be improved.

[0116] According to one embodiment of the present invention, in the above-described composition for forming aerosol-generating articles, based on 100 parts by weight of the sheet-forming material, the content of the active substance can be 0.1 parts by weight or more and 10 parts by weight or less, 0.1 parts by weight or more and 8 parts by weight or less, 0.5 parts by weight or more and 7 parts by weight or less, 1 part by weight or more and 6 parts by weight or less, 1 part by weight or more and 5 parts by weight or less, 2 parts by weight or more and 4 parts by weight or less, or 2 parts by weight or more and 3 parts by weight or less. Furthermore, based on the total weight of the sheet-forming material, the content of the active substance can be 0.1% by weight or more and 10% by weight or less, 0.1% by weight or more and 8% by weight or less, 0.5% by weight or more and 7% by weight or less, 1% by weight or more and 6% by weight or less, 1% by weight or more and 5% by weight or less, 2% by weight or more and 4% by weight or less, or 2% by weight or more and 3% by weight or less. When the content of the active substance is within the above range, a sheet for aerosol-generating articles with excellent nicotine migration properties can be easily manufactured.

[0117] According to one embodiment of the present invention, in the above-mentioned aerosol generating article sheet forming composition, based on 100 parts by weight of the sheet forming material, the nicotine content can be 0.1 parts by weight or more and 4 parts by weight or less, 0.5 parts by weight or more and 3 parts by weight or less, 0.9 parts by weight or more and 3 parts by weight or less, or 0.9 parts by weight or more and 2.5 parts by weight or less. Furthermore, based on the total weight of the sheet forming material, the nicotine content can be 0.1% by weight or more and 4% by weight or less, 0.5% by weight or more and 3% by weight or less, 0.9% by weight or more and 3% by weight or less, or 0.9% by weight or more and 2.5% by weight or less. By controlling the nicotine content within the above-mentioned range, nicotine or nicotine salts can be adequately delivered to the user's mouth, effectively providing the user with a satisfactory taste and excellent smoking performance.

[0118] According to one embodiment of the present invention, in the above-described aerosol-generating article sheet-forming composition, based on 100 parts by weight of the sheet-forming material, the content of the organic acid can be 0.1 parts by weight or more and 6 parts by weight or less, 0.5 parts by weight or more and 5 parts by weight or less, 0.9 parts by weight or more and 4 parts by weight or less, or 0.9 parts by weight or more and 3 parts by weight or less. Furthermore, based on the total weight of the sheet-forming material, the nicotine content can be 0.1% by weight or more and 6% by weight or less, 0.5% by weight or more and 5% by weight or less, 0.9% by weight or more and 4% by weight or less, or 0.9% by weight or more and 3% by weight or less. According to one embodiment of the present invention, by adjusting the content of the organic acid to the above-described numerical range, the pH value of the nicotine is sufficiently reduced, allowing the nicotine salt in its salt state to be effectively delivered to the user's mouth.

[0119] According to one embodiment of the present invention, in the above-described aerosol-generating article sheet-forming composition, based on 100 parts by weight of the sheet-forming material, the content of the aerosol-forming material can be 5 parts by weight or more and 60 parts by weight or less, 5 parts by weight or more and 50 parts by weight or less, 8 parts by weight or more and 47 parts by weight or less, 10 parts by weight or more and 45 parts by weight or less, 12 parts by weight or more and 40 parts by weight or less, 14 parts by weight or more and 38 parts by weight or less, or 15 parts by weight or more and 35 parts by weight or less. Furthermore, based on the total weight of the above-described sheet-forming material, the content of the aerosol-forming material can be 5% by weight or more and 60% by weight or less, 5% by weight or more and 50% by weight or less, 8% by weight or more and 47% by weight or less, 10% by weight or more and 45% by weight or less, 12% by weight or more and 40% by weight or less, 14% by weight or more and 38% by weight or less, or 15% by weight or more and 35% by weight or less. When the content of the aforementioned aerosol-forming substances is within the aforementioned range, it is easy to realize a sheet material for aerosol articles that can generate abundant aerosols when heated.

[0120] According to one embodiment of the present invention, in the above-described composition for forming aerosol-generating articles, based on 100 parts by weight of the sheet-forming material, the content of the support can be 20 parts by weight or more and 86 parts by weight or less, 20 parts by weight or more and 80 parts by weight or less, 30 parts by weight or more and 70 parts by weight or less, 40 parts by weight or more and 60 parts by weight or less, 30 parts by weight or more and 50 parts by weight or less, or 45 parts by weight or more and 80 parts by weight or less. Furthermore, based on the total weight of the sheet-forming material, the content of the support can be 20% by weight or more and 86% by weight or less, 20% by weight or more and 80% by weight or less, 30% by weight or more and 70% by weight or less, 40% by weight or more and 60% by weight or less, 30% by weight or more and 50% by weight or more, or 45% by weight or more and 80% by weight or less. When the content of the support is within the above ranges, the above-described sheet for forming aerosol-generating articles with excellent mechanical properties and storage stability can be easily achieved.

[0121] According to one embodiment of the present invention, in the above-described aerosol generating article sheet forming composition, based on 100 parts by weight of sheet forming material, the content of the moisture regulator may be 0.1 parts by weight or more and 6 parts by weight or less, 0.1 parts by weight or more and 5 parts by weight or less, 0.5 parts by weight or more and 4.5 parts by weight or less, 1.5 parts by weight or more and 3.5 parts by weight or less, 0.5 parts by weight or more and 3 parts by weight or less, or 1.3 parts by weight or more and 5 parts by weight or less. Furthermore, based on the total weight of the above-described sheet forming material, the content of the moisture regulator may be 0.1% by weight or more and 6% by weight or less, 0.1% by weight or more and 5% by weight or less, 0.5% by weight or more and 4.5% by weight or less, 1.5% by weight or more and 3.5% by weight or less, 0.5% by weight or more and 3% by weight or less, or 1.3% by weight or more and 5% by weight or less. If the content of the aforementioned moisture regulator is within the above range, it is easy to achieve a sheet material for aerosol-generating articles that has excellent moisture resistance and long-term storage reliability.

[0122] According to one embodiment of the present invention, in the composition for forming a sheet of aerosol-generating articles, based on 100 parts by weight of the sheet-forming material, the content of the filler can be 3 or more and 9 parts by weight or less, 3 or more and 7 parts by weight or less, 4 or more and 5 parts by weight or less, 3 or more and 4 parts by weight or less, or 5 or more and 8 parts by weight or less. Furthermore, based on the total weight of the sheet-forming material, the content of the filler can be 3% by weight or more and 9% by weight or less, 3% by weight or more and 7% by weight or less, 4% by weight or more and 5% by weight or less, 3% by weight or more and 4% by weight or less, or 5% by weight or more and 8% by weight or less. When the content of the filler is within the above range, a sheet of aerosol-generating articles with improved mechanical properties can be easily achieved.

[0123] According to one embodiment of the present invention, in the above-described composition for forming a sheet of aerosol-generating articles, based on 100 parts by weight of the sheet-forming material, the content of the adhesive can be 3 or more and 20 parts by weight or less, 3 or more and 15 parts by weight or less, 4 or more and 12 parts by weight or less, 4 or more and 10 parts by weight or less, 3 or more and 8 parts by weight or less, or 4 or more and 15 parts by weight or less. Furthermore, based on the total weight of the sheet-forming material, the content of the adhesive can be 3% by weight or more and 20% by weight or less, 3% by weight or more and 15% by weight or less, 4% by weight or more and 12% by weight or less, 4% by weight or more and 10% by weight or less, 3% by weight or more and 8% by weight or less, or 4% by weight or more and 15% by weight or less. When the content of the adhesive is within the above range, each component can be stably maintained within the above-described sheet of aerosol-generating articles.

[0124] According to one embodiment of the present invention, in the above-described aerosol generating article sheet forming composition, based on 100 parts by weight of sheet forming material, the content of the expanding agent may be 1 part or more and 25 parts by weight or less, 1 part or more and 20 parts by weight or less, 2 parts or more and 15 parts by weight or less, 5 parts or more and 10 parts by weight or less, 6 parts or more and 10 parts by weight or less, 6 parts or more and 20 parts by weight or less, 8 parts or more and 15 parts by weight or less, 1 part or more and 10 parts by weight or less, or 5 parts or more and 20 parts by weight or less. Furthermore, based on the total weight of the aforementioned sheet-forming material, the content of the expanding agent can be 1% or more and 25% or less by weight, 1% or more and 20% or less by weight, 2% or more and 15% or less by weight, 5% or more and 10% or less by weight, 6% or more and 10% or less by weight, 6% or more and 20% or less by weight, 8% or more and 15% or less by weight, 1% or more and 10% or less by weight, or 5% or more and 20% or less by weight. When the content of the expanding agent is within the aforementioned range, the shrinkage of the sheet material during the manufacturing process and storage of aerosol-generating articles can be effectively suppressed.

[0125] According to one embodiment of the present invention, in the above-described composition for forming sheet of aerosol-generating articles, based on 100 parts by weight of the sheet-forming material, the content of the additive can be 0.1 parts by weight or more and 18 parts by weight or less, 0.1 parts by weight or more and 15 parts by weight or less, 0.5 parts by weight or more and 12 parts by weight or less, 1 part by weight or more and 7 parts by weight or less, 0.1 parts by weight or more and 5 parts by weight or less, or 3 parts by weight or more and 15 parts by weight or less. Furthermore, based on the total weight of the sheet-forming material, the content of the additive can be 0.1% by weight or more and 18% by weight or less, 0.1% by weight or more and 15% by weight or less, 0.5% by weight or more and 12% by weight or less, 1% by weight or more and 7% by weight or less, 0.1% by weight or more and 5% by weight or less, or 3% by weight or more and 15% by weight or less. When the content of the additive is within the above range, a sheet of aerosol-generating articles with adjusted aroma and / or flavor intensity can be easily achieved.

[0126] According to one embodiment of the present invention, the sheet-forming substance contained in the above-described aerosol-generating article sheet-forming composition can remain in the above-described aerosol-generating article sheet. Specifically, when the above-described aerosol-generating article sheet is manufactured by drying the above-described aerosol-generating article sheet-forming composition, the sheet-forming substance can remain in the above-described aerosol-generating article sheet. Therefore, the content ratio of the components contained in the sheet-forming substance and the content ratio of each component contained in the sheet forming material can be kept consistent between the above-described aerosol-generating article sheet-forming composition and the above-described aerosol-generating article sheet.

[0127] According to one embodiment of the present invention, the viscosity of the above-described aerosol-generating article sheet-forming composition can be 7,000 cP or more and 18,000 cP or less at 23°C. Specifically, it can be 7,000 cP or more, 8,000 cP or more, 9,000 cP or more, 10,000 cP or more, 13,000 cP or more, or 15,000 cP or more, and can be 16,000 cP or less, 17,000 cP or less, or 18,000 cP or less. For example, the viscosity of the above-described aerosol-generating article sheet-forming composition can be measured using a viscometer (equipment name: Brookfield Viscometer DV2T). By adjusting the viscosity of the above-described aerosol-generating article sheet-forming composition to the above range, a sheet with favorable processing, low sheet thickness deviation, and excellent mechanical properties can be obtained.

[0128] Physical properties According to one embodiment of the present invention, the thickness of the sheet for generating aerosol articles can be 180 μm or more and 220 μm or less, 185 μm or more and 215 μm or less, 190 μm or more and 210 μm or less, 195 μm or more and 205 μm or less, or 200 μm or more and 202 μm or less. Specifically, when the thickness of the sheet is adjusted to the above range, both the workability of the sheet and the uniformity of suction resistance can be achieved simultaneously. On the other hand, depending on the required physical properties of the sheet and the conditions of use of the sheet, the thickness of the sheet can also be adjusted to outside the above range.

[0129] According to one embodiment of the present invention, the width of the aforementioned sheet for aerosol generation articles can be 0.6 mm or more and 1.2 mm or less, 0.7 mm or more and 1.1 mm or less, or 0.8 mm or more and 1.0 mm or less. Furthermore, the length of the aforementioned sheet for aerosol generation articles can be 8 mm or more and 12 mm or less, 9 mm or more and 11 mm or less, or 10 mm or more and 11 mm or less. On the other hand, depending on the required physical properties of the sheet and the conditions of use of the sheet, the width and length of the aforementioned sheet can also be adjusted outside the aforementioned ranges.

[0130] According to one embodiment of the present invention, the tensile strength of the above-mentioned sheet for aerosol generation articles can be 1,500 N / m or more and 3,000 N / m or less, 1,700 N / m or more and 2,800 N / m or less, 1,900 N / m or more and 2,600 N / m or less, 2,100 N / m or more and 2,500 N / m or less, 1,500 N / m or more and 2,500 N / m or less, 1,800 N / m or more and 2,300 N / m or less, 2,000 N / m or more and 3,000 N / m or less, or 2,200 N / m or more and 2,700 N / m or less. The above-mentioned sheet for aerosol generation articles having tensile strength within the above ranges maintains excellent processability while also possessing excellent durability and mechanical strength.

[0131] According to one embodiment of the present invention, the elongation of the sheet for aerosol generation articles can be 0.1% or more and 10% or less, 1% or more and 9% or less, 2% or more and 8% or less, 3% or more and 7% or less, 4% or more and 6% or less, 4% or more and 8% or less, or 5% or more and 7% or less. When the elongation of the sheet for aerosol generation articles is within the above range, the processability and mechanical durability of the sheet can be excellent. The elongation of the sheet for aerosol generation articles can refer to the elongation at break.

[0132] According to one embodiment of the present invention, the tensile strength and elongation of the above-mentioned sheet for aerosol generation articles can be determined using the testing methods and apparatus used in the art. For example, the tensile strength and elongation of the sheet can be determined by the method described in International Standard ISO 1924 / 2 (published in 2014, entitled "Paper and paperboard - Determination of tensile properties - Part II: Constant-rate tensile testing method"). Furthermore, the tensile strength and elongation of the sheet can be determined using a vertical tensile testing machine (equipment name: Universal Tester Vertical; FRANK-PTI GMBH).

[0133] According to one embodiment of the present invention, the basis weight of the above-mentioned aerosol-generating article sheet can be 132 g / m³. 2Above and 145g / m 2 Specifically, it can be 134g / m 2 Above, 136g / m 2 Above, 138g / m 2 Above or 140g / m 2 The above, and can be 138g / m 2 Below, 140g / m 2 Below, 142g / m 2 Below or 145g / m 2 The following applies: When the basis weight of the sheet material for aerosol-generating articles is within the above range, the sheet material can have excellent processability, durability, and mechanical strength.

[0134] According to one embodiment of the present invention, the water contact angle of the above-mentioned aerosol generating article sheet can be 70° or more and 130° or less, 80° or more and 125° or less, 90° or more and 120° or less, 105° or more and 115° or less, 70° or more and 120° or less, 75° or more and 110° or less, 100° or more and 130° or less, or 100° or more and 120° or less. The above-mentioned aerosol generating article sheet having a water contact angle satisfying the above range can have excellent processability and storage stability. The water contact angle of the above-mentioned sheet can be measured using methods and apparatus used in the art. For example, the contact angle of the sheet can be measured using a contact angle measuring instrument (equipment name: KRUSS DSA100) under conditions of 23°C and 50% relative humidity (RH%).

[0135] Aerosol generating articles and aerosol generating devices According to one embodiment of the present invention, an aerosol generating article includes a first portion, a second portion disposed on one side of the first portion, a third portion disposed on one side of the second portion, and a fourth portion disposed on one side of the third portion, wherein the second portion includes the sheet material for the aerosol generating article.

[0136] According to an embodiment of the present invention, an aerosol generating article can provide excellent stability and improved smoking performance by including the above-described aerosol generating article sheet.

[0137] Figure 1 A perspective view showing an aerosol-generating article according to an embodiment of the present invention.

[0138] Reference Figure 1The aerosol generating article 100 includes a first portion SEG1, a second portion SEG2, a third portion SEG3, and a fourth portion SEG4. Specifically, the first portion SEG1, the second portion SEG2, the third portion SEG3, and the fourth portion SEG4 can be arranged side by side along the length direction L of the aerosol generating article 100. More specifically, the second portion SEG2 can be located between the first portion SEG1 and the third portion SEG3, and the third portion SEG3 can be located between the second portion SEG2 and the fourth portion SEG4. For example, the thickness direction T can be a direction intersecting the length direction L of the aerosol generating article 100.

[0139] Figure 2 This is a schematic diagram illustrating an aerosol generating apparatus according to an embodiment of the present invention.

[0140] Reference Figure 2 The aerosol generating device 300 may include a battery 310, a control unit 320, and a heater 330. For example, in addition to the components illustrated, the aerosol generating device 300 may further include other general or conventional components. Specifically, the aerosol generating device 300 may include: a housing forming the appearance of the aerosol generating device; a sensor including at least one of a temperature sensor, a suction sensor, an insertion detection sensor, and an acceleration sensor; and an output module (e.g., a motor, a display) for outputting the device status and an input module (e.g., a button) for receiving user input (e.g., a device switch).

[0141] According to one embodiment of the present invention, the battery 310 can supply power to the components of the aerosol generating apparatus to enable its operation. Specifically, the battery 310 can supply power to at least one of the control unit 320, the heater 330, and the sensor described later. For example, the battery 310 can also supply power to the induction coil.

[0142] According to one embodiment of the present invention, the control unit 320 can control the overall operation of the aerosol generating apparatus 300. For example, the control unit 320 can control the operation of at least one of the battery 310, sensor (not shown), and heater 330. As an example, the control unit 320 can also control the operation of the induction coil. As another example, the control unit 320 can also control the operation of the display, motor, etc., installed on the aerosol generating apparatus 300. Furthermore, the control unit 320 can check the status of each component of the aerosol generating apparatus to determine whether the aerosol generating apparatus is in an operable state.

[0143] According to one embodiment of the present invention, smoke and / or aerosols can be generated by heating a portion of the first part SEG1 and a portion of the second part SEG2 of an aerosol generating article 100 inserted into a receiving space. The aerosol generating article 100, according to some embodiments, inserted into the receiving space, can generate smoke and / or aerosols when heated by a heater 330. The generated smoke and / or aerosols can be inhaled through the user's mouth end. For example, the heated portion of the first part SEG1 and the portion of the second part SEG2 can be directly connected.

[0144] According to one embodiment of the present invention, the heater 330 may be a resistive heater. Specifically, the heater 330 may include conductive rails, through which the heater 330 can be heated. Further, the heater 330 may be electrically connected to the battery 310, thereby directly receiving current and generating heat.

[0145] According to one embodiment of the present invention, when the aerosol-generating article sheet 10 is included in the second part SEG2, the aerosol-generating article sheet 10 may be formed by crimping one or more sub-sheets. "Crimping" may include at least one structure selected from the group consisting of embossed structures, intaglio structures, and perforated structures. Specifically, it may include a structure composed of a combination of embossed and intaglio structures, and more specifically, it may be a structure having multiple folds.

[0146] According to one embodiment of the present invention, a plurality of pleats in the aerosol generating article sheet 10 included in the second part SEG2 can extend parallel to the longitudinal axis of the aerosol generating article. Since the plurality of pleats extend parallel to the longitudinal axis of the aerosol generating article, the required aerosol flow can be provided when the aerosol generating article sheet is heated, thereby achieving an appropriate level of suction resistance.

[0147] According to one embodiment of the present invention, the second part SEG2 may not contain tobacco substances. Since the second part SEG2 does not contain tobacco substances, the active substances can be effectively delivered to the user even in the absence of tobacco substances, thereby further improving taste and satisfaction. Specifically, tobacco substances such as tobacco leaves have their own unique flavor, which can cause off-flavors for the user, and there is also the problem that, as the tobacco leaves are heated, other components besides the active substances (nicotine or nicotine salts) migrate to the user's mouth. By excluding tobacco substances in the second part, the problems of off-flavors and the migration of other components can be solved simultaneously.

[0148] According to one embodiment of the present invention, the first portion SEG1 may include a first filter element. For example, the first filter element may include cellulose acetate. In some examples, the first filter element may be an assembly (tow) of continuous filaments made of cellulose acetate. For example, the first filter element may include a hollow portion formed elongated along the length direction of the aerosol generating article 100. This hollow portion may extend through the first filter element. The cross-sectional shape of the hollow portion is not particularly limited, and may specifically be Y-shaped, X-shaped, or circular.

[0149] According to one embodiment of the present invention, the first filter element may include a first sub-aerosol forming substance that is the same as or different from the aerosol forming substance contained in the aerosol generating article sheet. For example, the first sub-aerosol forming substance may be impregnated in the first filter element. The atomization generated by the first sub-aerosol forming substance when heated can effectively migrate active substances such as nicotine or nicotine salts generated by the aerosol generating article sheet contained in the second part SEG2 downstream.

[0150] According to one embodiment of the present invention, the third part SEG3 may include a second filter element. For example, by including the second filter element, the third part SEG3 can perform a filtering function on the aerosol delivered from the front end of the aerosol generating article. In some examples, the second filter element is not particularly limited and may be a filter nozzle commonly used in the art. Specifically, the second filter element may be a cylindrical paper tube with a hollow structure.

[0151] According to one embodiment of the present invention, the fourth part SEG4 may include a third filter element for further filtering the aerosol from the third part SEG3. In some examples, the third filter element is not particularly limited and may be a filter tip commonly used in the art. Specifically, the third filter element may be a continuous filament assembly (tow) made of cellulose acetate.

[0152] Figure 3 This is a schematic diagram illustrating an aerosol generating apparatus according to another embodiment of the present invention. (For comparison with...) Figure 1 and Figure 2 Repeated descriptions will be briefly explained or omitted.

[0153] Reference Figure 3According to one embodiment of the present invention, the aerosol generating apparatus 300 may further include a cartridge 340 containing a second sub-aerosol forming substance, wherein the second sub-aerosol forming substance is in one of the states of liquid, solid, gas, or gel. For example, the second sub-aerosol forming substance may include a liquid composition. Specifically, the liquid composition may be a liquid containing non-tobacco substances and containing the aforementioned aerosol forming substance.

[0154] For example, the second aerosol-forming substance contained in the aforementioned cartridge 340 can generate an aerosol when heated. The generated aerosol can be transported through an airflow channel to the first portion SEG1 of the aerosol-generating article 100 and promote the downstream migration of nicotine or nicotine salts released from the sheet 10 of the aerosol-generating article contained in the second portion SEG2.

[0155] According to one embodiment of the present invention, the first portion SEG1 may include a fourth filter element for filtering a portion of the components in the aerosol supplied by the cartridge 340. Furthermore, the first portion SEG1 can be identified by the presence of aluminum foil in the filter roll paper, thus identifying the aerosol generating article 100. For example, the fourth filter element may include a tubular filter commonly used in this art.

[0156] According to one embodiment of the present invention, the second part SEG2 may include the aforementioned sheet 10 for aerosol generation articles. By including the sheet for aerosol generation articles in the second part SEG2, not only can the migration of aerosols containing components other than active substances be reduced, but also an aerosol generation article free of tobacco-specific odor and off-odor can be achieved.

[0157] According to one embodiment of the present invention, the content of the aerosol-generating article sheet per unit length of the second part SEG2 can be 150 mg / 12 mm or more and 280 mg / 12 mm or less, 160 mg / 12 mm or more and 270 mg / 12 mm or less, 170 mg / 12 mm or more and 260 mg / 12 mm or less, 180 mg / 12 mm or more and 250 mg / 12 mm or less, 190 mg / 12 mm or more and 240 mg / 12 mm or less, 200 mg / 12 mm or more and 230 mg / 12 mm or less, or 230 mg / 12 mm or more and 280 mg / 12 mm or less. According to one embodiment of the present invention, by adjusting the sheet content of the aerosol-generating article sheet within the above ranges, the active substance can be sufficiently migrated to the mouth (mouth end), thereby further improving smoking performance and satisfaction.

[0158] According to one embodiment of the present invention, the second part SEG2 may not contain tobacco substances. Since the second part SEG2 does not contain tobacco substances, active substances can be effectively transferred to the user even in the absence of tobacco substances, thereby further improving taste and satisfaction. Specifically, tobacco substances such as tobacco leaves have their own unique flavor, which can cause off-flavors for the user, and there is also the problem that, as the tobacco leaves are heated, other components besides active substances (nicotine or nicotine salts) migrate to the user's mouth. According to one embodiment of the present invention, by excluding tobacco substances from the second part, the off-flavor problem and the problem of other component migration can be solved simultaneously.

[0159] For example, the heater 330 described above can heat the first part SEG1 and the second part SEG2 described above.

[0160] For example, the description of the pleated structure of the sheet 10 for generating aerosol articles described above can be compared with the above... Figure 2 The description is the same as in [the previous text].

[0161] Figure 4 To show Figure 2 and Figure 3 The diagram shows a cross-sectional view of a modified example of a sheet material for aerosol generation. Specifically, as shown... Figure 4 The aerosol generating article sheet shown above is a cross-sectional view of the aerosol generating article sheet cut along the length L of the aerosol generating article 100. Alternatively, as... Figure 2 and Figure 3 The sheet material for aerosol-generating articles shown above can be deformed as follows: Figure 4 The sheet material for aerosol-generating articles shown above.

[0162] Reference Figure 4 According to one embodiment of the present invention, the aerosol generating article sheet 10 described above may be a laminate formed by stacking two or more sub-sheets 10a. For example, the sub-sheets may be manufactured by cutting individual pieces of the aerosol generating article sheet.

[0163] For example, there is no particular limit to the total number of the aforementioned sub-sheets 10a, but specifically, it can be more than 50 and less than 200.

[0164] According to one embodiment of the present invention, at least one of the two or more sub-sheets 10a may include a curled structure; specifically, all sub-sheets may include a curled structure. According to one embodiment of the present invention, since all sub-sheets include a curled structure, aerosols and nicotine or nicotine salts generated by the aerosol-generating article sheet 10 can be migrated more effectively.

[0165] For example, the thickness of the sub-sheet 10a is not particularly limited, but specifically, it can be 50 μm or more and 300 μm or less, 100 μm or more and 270 μm or less, 150 μm or more and 250 μm or less, or 150 μm or more and 300 μm or less. In this case, the thickness direction T of the sub-sheet 10a can be a direction intersecting the length direction L of the aerosol generating article 100, specifically, it can be a direction perpendicular to the length direction L of the aerosol generating article 100.

[0166] Methods of implementing the invention The present invention will now be described in detail with reference to embodiments. However, embodiments of the present invention can be modified into various other forms, and the scope of the present invention is not limited to the embodiments described below. Embodiments are provided in this specification so that those skilled in the art can gain a more complete understanding of the present invention.

[0167] Material To prepare the active substance, nicotine and citric acid as an organic acid are required. Glycerol is prepared as an aerosol-forming substance, and an average particle size (D) is prepared as a support. 50 Microcrystalline cellulose (MCC) with a particle size of approximately 65 μm was used as a filler in pulp (CAS No. 65996-61-4), cocoa extract was used as an additive, and menthol was used as a flavoring agent.

[0168] As a first moisture regulator, R1 in the above chemical formula 1-1 is a hydroxyl group, and R... 21 To R 23 Compounds of the ethyl group. R in the above chemical formulas 1-2 is prepared as a second moisture regulator. 31 and R 32 For positive heptyl base, R 33 It is a compound of the n-nonyl group. Myristic acid was prepared as a third moisture regulator.

[0169] Carboxymethyl cellulose (Mw: 30,000 g / mol) was prepared as a binder, and maltodextrin with a DE value of about 1 was prepared as a swelling agent.

[0170] Examples and Comparative Examples Manufacturing of sheets for aerosol-generating articles A sheet-forming composition for aerosol-generating articles is prepared, comprising a sheet-forming substance having the composition shown in Table 1 below and a solvent (water), and then the composition is dried under the drying conditions shown in Table 2 below to prepare a sheet for aerosol-generating articles having the composition shown in Table 2 below. At this time, the weight ratio of the sheet-forming substance to water is 1:4.

[0171] At this time, the content of the composition recorded in Table 1 below is the relative content (unit: parts by weight) of the material for forming sheet relative to 100 parts by weight, and the content of the composition recorded in Table 2 below is the relative content (unit: parts by weight) of the sheet for generating aerosol articles relative to 100 parts by weight.

[0172] [Table 1]

[0173] [Table 2]

[0174] Manufacturing of aerosol-generating items The first to fourth parts are formed sequentially along the length of the aerosol-generated article.

[0175] Manufacturing of Part One By including a basis weight of approximately 26.5 g / m 2 The first part (length: approximately 10 mm) was made by impregnating a paper filter with a thickness of 48 μm with glycerin as a humectant.

[0176] Manufacturing in Part Two The aerosol-generating article sheets (thickness: 200 μm, width: 1.0 mm, length: 10 mm) prepared above were each rolled using a rolling semi-finished product manufacturing machine (equipment name: HAUNI KDF-5 CU Cigarette Filter Making Machine). The rolled aerosol-generating article sheets were then filled into the interior of a second portion arranged on one side of the first portion, thereby forming a second portion (length: approximately 12 mm). At this time, the content of the aerosol-generating article sheets prepared above was adjusted to 230 mg / 12 mm based on the length of the second portion.

[0177] Manufacturing of Part Three A tubular filter with a hollow structure was prepared and arranged in a third part (length: about 12 mm) on one side of the second part.

[0178] Manufacturing of Part Four A cellulose acetate filter is prepared in the fourth section (length: approximately 14 mm) located on one side of the third section mentioned above.

[0179] Experimental Example Method for determining the moisture content of sheets used in aerosol-generating articles: The moisture content of a 4g sample of the aerosol-generating article sheet prepared above was determined using a general-purpose moisture meter (equipment name: Brabender Moisture Tester MT-CA). Specifically, the sheet sample was dried at 100°C for 15 minutes until all moisture was removed, and the moisture content of the aerosol-generating article sheet was determined by calculating the change in evaporated moisture. The experimental conditions were as follows: the dried sheet sample was exposed at 22.5°C and 40% relative humidity for 24 hours, and then the moisture content was measured.

[0180] Determine the water contact angle on the sheet surface After water droplets were placed on the surface of the sheets prepared in Examples 1 to 2 and Comparative Examples 1 to 3 above, the contact angle of the water droplets on the sheet surface was measured using a contact angle measurement instrument (equipment name: KRUSS DSA100) at 23°C and 50% relative humidity (RH%). The results are shown in Table 3 below.

[0181] Sheet processability evaluation For the sheets prepared in Examples 1 to 2 and Comparative Examples 1 to 3 above, if a homemade simple curling machine is used and the sheet sticks to the curling roller, making curling difficult, it is rated as "X"; if the sheet does not stick to the roller and curling is achieved smoothly, it is rated as "O". The results are shown in Table 3 below.

[0182] Evaluation of Sheet Storage Stability The storage stability of the sheets prepared in Examples 1 to 2 and Comparative Examples 1 to 3 above was evaluated using the following methods, and the results are shown in Table 3 below.

[0183] The sheet is placed in a chamber with 50% humidity and 25°C, sealed, and left for 6 months. After that, if cracks or breaks are observed in the sheet with the naked eye, it is rated as "X". If the sheet is undamaged and its adhesion and elongation increase due to moisture absorption, it is rated as "O".

[0184] Determination of tensile strength and elongation of sheet The tensile strength and elongation of the sheets prepared in the examples and comparative examples were determined using the method described in the 2014 publication of the international standard ISO 1924 / 2 entitled "Paper and paperboard - Determination of tensile properties - Part 2: Constant rate stretching method". The results are shown in Table 3 below.

[0185] Specifically, the tensile strength of the sheet sample (thickness: 210 μm, width: 15 mm, length: 100 mm) for aerosol-generating articles was measured in the length direction (MD direction; machine direction) of the sheet using a Universal Tester Vertical (FRANK-PTI GMBH) according to the ISO 1924 / 2:2014 test standard.

[0186] [Table 3]

[0187] Referring to Table 3 above, it is confirmed that the sheets for aerosol-generating articles prepared in Examples 1 and 2 have excellent processability and storage stability, as well as excellent mechanical properties such as tensile strength and elongation. On the other hand, the processability and storage stability of Comparative Examples 1 to 3 are poor, and their mechanical properties are also worse than those of the Examples.

[0188] Therefore, the aerosol-generating sheet according to an embodiment of the present invention has excellent processability, stability and mechanical properties.

[0189] [Explanation of reference numerals in the attached figures] 10: Sheets for aerosol-generating products 100: Aerosol-generating items SEG1: Part One SEG2: Part Two SEG3: Part Three SEG4: Part Four 300: Aerosol Generating Device 310: Battery 320: Control Department 330: Heater 340: Smoke cartridge L: Length direction T: Thickness direction

Claims

1. A sheet for an aerosol generating article, characterized by, comprises: an active substance; an aerosol forming substance; a support body; and a moisture adjuster including a compound represented by the following Chemical Formula 1: [Chemical Formula 1] In the above Chemical Formula, 2. The sheet for an aerosol generating article according to claim 1, characterized in that, R1is hydrogen or hydroxyl, and R2to R4are each independently carboxyl (-CO2H); ; or , R 11 is a linear or branched alkyl group having 1 to 3 carbon atoms, R 12 is a linear or branched alkyl group having 3 to 12 carbon atoms. the moisture adjuster includes a compound represented by the following Chemical Formula 1-1: [Chemical Formula 1-1] In the above Chemical Formula, 3. The sheet for an aerosol generating article according to claim 1, characterized in that, R1is hydroxyl, R 21 to R 23 each independently is hydrogen; or straight-chain or branched alkyl having 1 to 3 carbon atoms; R 21 to R 23 at least one of which is straight-chain or branched alkyl having 1 to 3 carbon atoms. the moisture adjuster includes a compound represented by the following Chemical Formula 1-2: [Chemical Formula 1-2] In the above Chemical Formula, 4. The sheet for an aerosol generating article according to claim 1, characterized in that, R 31 to R 33 each independently is a linear or branched alkyl group having 3 to 12 carbon atoms. a content of the active substance is 0.1 parts by weight or more and 8 parts by weight or less, based on 100 parts by weight of the sheet for an aerosol generating article.

5. The sheet for an aerosol generating article according to claim 1, characterized in that, a content of the aerosol forming substance is 5 parts by weight or more and 50 parts by weight or less, based on 100 parts by weight of the sheet for an aerosol generating article.

6. The sheet for an aerosol generating article according to claim 1, characterized in that, a content of the support body is 20 parts by weight or more and 80 parts by weight or less, based on 100 parts by weight of the sheet for an aerosol generating article.

7. The sheet for an aerosol generating article according to claim 1, characterized in that, a content of the moisture adjuster is 0.1 parts by weight or more and 5 parts by weight or less, based on 100 parts by weight of the sheet for an aerosol generating article.

8. The sheet for an aerosol generating article according to claim 1, characterized in that, a weight ratio of the moisture adjuster to the aerosol forming substance is 1:3 to 1:

100. further includes a filler and a binder.

9. The sheet for an aerosol-generating article according to claim 1, wherein 10. The sheet for an aerosol generating article according to claim 9, characterized in that, a content of the filler is 3 parts by weight or more and 8 parts by weight or less, and a content of the binder is 3 parts by weight or more and 15 parts by weight or less, based on 100 parts by weight of the sheet for an aerosol generating article.

11. The sheet for an aerosol generating article according to claim 1, characterized in that, a contact angle with respect to water is 70° or more and 130° or less. further includes an additive including at least one of an expanding agent, an emulsifying agent, an aroma enhancer, an extract, and a vitamin ingredient.

12. The sheet for an aerosol-generating article according to claim 1, wherein comprises:

13. An aerosol generating article, characterized by, a first portion; a second portion disposed on one side of the first portion; a third portion disposed on one side of the second portion; and a fourth portion disposed on one side of the third portion; the second portion includes the sheet for an aerosol generating article according to claim 1. ​ ​

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