WO2025230261A1 - Sheet for aerosol-generating article and aerosol-generating article comprising same - Google Patents

Abstract

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

Description

Sheet for aerosol product and aerosol product containing same

The present invention relates to a sheet for an aerosol product having excellent processability and stability and an aerosol product comprising the same.

Recently, there has been a growing demand for alternative methods that overcome the shortcomings of conventional cigarettes. For example, there is a growing demand for aerosol products that produce aerosol by heating aerosol-generating materials, such as a medium, rather than by burning cigarettes.

Meanwhile, aerosol products contain tobacco leaves like regular cigarettes, but tobacco leaves have a unique flavor in addition to nicotine, so there is a problem that users feel an unpleasant odor when smoking.

[Prior Art Literature]

[Patent Document]

Korean Patent Publication No. 10-2022-0026430 (published on March 4, 2022)

The present invention provides a sheet for an aerosol product having excellent stability and improved processability using a moisture control agent, and an aerosol product including the same.

However, the problems to be solved by the present invention are not limited to the problems mentioned above, and other problems not mentioned can be clearly understood by those skilled in the art from the description below.

According to a first aspect of the present invention, there is provided a sheet for an aerosol product comprising: an active material; an aerosol-forming material; a support; and a moisture control agent comprising a compound represented by the following chemical formula 1:

[Chemical Formula 1]

In the above chemical formula, R ₁ is hydrogen or a hydroxy group, and R ₂ to R ₄ are each independently a carboxyl group (-CO ₂ H); ; or , R ₁₁ is a straight or branched chain alkyl group having 1 to 3 carbon atoms, and R ₁₂ is a straight or branched chain alkyl group having 3 to 12 carbon atoms.

According to a second aspect of the present invention, in the first aspect, the moisture regulator may include a compound represented by the following chemical formula 1-1:

[Chemical Formula 1-1]

In the above chemical formula, R ₁ is a hydroxy group, R ₂₁ to R ₂₃ are each independently hydrogen; or a straight or branched chain alkyl group having 1 to 3 carbon atoms; and at least one of R ₂₁ to R ₂₃ is a straight or branched chain alkyl group having 1 to 3 carbon atoms.

According to a third aspect of the present invention, in the first aspect or the second aspect, the moisture regulator may include a compound represented by the following chemical formula 1-2:

[Chemical Formula 1-2]

In the above chemical formula, R ₃₁ to R ₃₃ are each independently a straight-chain or branched-chain alkyl group having 3 to 12 carbon atoms.

According to a fourth aspect of the present invention, in any one of the first to third aspects, the content of the active material may be 0.1 parts by weight or more and 8 parts by weight or less, based on 100 parts by weight of the sheet for the aerosol product.

According to a fifth aspect of the present invention, in any one of the first to fourth aspects, the content of the aerosol-forming material may be 5 parts by weight or more and 50 parts by weight or less, based on 100 parts by weight of the sheet for the aerosol product.

According to a sixth aspect of the present invention, in any one of the first to fifth aspects, the content of the support may be 20 parts by weight or more and 80 parts by weight or less, based on 100 parts by weight of the sheet for the aerosol product.

According to a seventh aspect of the present invention, in any one of the first to sixth aspects, the content of the moisture control agent may be 0.1 parts by weight or more and 5 parts by weight or less, based on 100 parts by weight of the sheet for the aerosol product.

According to an eighth aspect of the present invention, in any one of the first to seventh aspects, the weight ratio of the moisture control agent and the aerosol forming material may be 1:3 to 1:100.

According to a ninth aspect of the present invention, the sheet for the aerosol product according to any one of the first to eighth aspects may further include a filler and a binder.

According to the tenth aspect of the present invention, based on 100 parts by weight of the sheet for the aerosol product in the ninth aspect, 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 binder may be 3 parts by weight or more and 15 parts by weight or less.

According to an eleventh aspect of the present invention, in any one of the first to tenth aspects, the sheet for the aerosol product may have a contact angle with respect to water of 70° or more and 130° or less.

According to a twelfth aspect of the present invention, the sheet for the aerosol product according to any one of the first to eleventh aspects may further comprise an additive comprising at least one of a bulking agent, an emulsifier, a flavoring agent, an extract, and a vitamin component.

According to a thirteenth aspect of the present invention, an aerosol product is provided, comprising: a first part; a second part disposed on one side of the first part; a third part disposed on one side of the second part; and a fourth part disposed on one side of the third part; wherein the second part comprises a sheet for the aerosol product of any one of the first to twelfth aspects.

An aerosol product sheet according to one embodiment of the present invention can have excellent stability and processability by including a specific type of moisture control agent.

In addition, an aerosol product according to one embodiment of the present invention can provide excellent stability and improved smoking properties by including the sheet for the aerosol product.

The effects of the present invention are not limited to the effects described above, and effects not mentioned will be clearly understood by those skilled in the art from the present specification and the attached drawings.

Figure 1 is a perspective view showing an aerosol product according to one embodiment of the present invention.

Figure 2 is a schematic diagram showing an aerosol generating device according to one embodiment of the present invention.

Figure 3 is a schematic diagram showing an aerosol generating device according to another embodiment of the present invention.

Figure 4 is a cross-sectional view showing a modified example of the sheet for the aerosol product shown in Figures 2 and 3.

In this specification, singular expressions include plural expressions unless the context clearly indicates otherwise.

The terms “comprise” and/or “comprising” in this specification specify the presence of stated features, steps, numbers, operations, elements, elements and/or groups thereof, but do not exclude the presence or addition of one or more other features, steps, numbers, operations, elements, elements and/or groups thereof.

In this specification, “At least one of a, b and c” may include a, b or c alone, or a combination of two or more selected from the group consisting of a, b and c.

In this specification, the term “a and/or b” is used to mean “a or b” and “a and b”.

The term "connection" in this specification refers not only to the direct structural connection between certain elements, but also includes indirect connections where other elements are interposed between the elements. Furthermore, the term "connection" in this specification may encompass not only structural matters but also instances where one element is electrically connected to another element. For example, the connection between a first component and a second component may mean that they are structurally directly or indirectly connected, or electrically connected.

If multiple embodiments are described in this specification, each embodiment may be combined unless specifically stated otherwise. In this case, the effect of the present invention may be defined as including the effect resulting from each embodiment and the effect resulting from the organic combination of each embodiment. For example, even if embodiment 1 and 2 are described independently in this specification, embodiment 1 and 2 may be organically combined with each other unless the context clearly indicates otherwise, and the effect of the present invention may include the effect resulting from the combination of embodiment 1 and 2.

In this specification, expressions such as "first," "second," "first," "second," "(S1)", "(S2)", etc. may describe various components, regardless of order and/or importance, and do not limit the components. These expressions may be used to distinguish one component from another. For example, without departing from the scope of the present disclosure, the first component may be referred to as the second component, and similarly, the second component may also be referred to as the first component.

The numerical range indicated by the term “to” in this specification refers to a numerical range that includes the values described before and after the term as the lower limit and the upper limit, respectively. When multiple numerical values are disclosed as the upper and lower limits of any numerical range, the numerical range disclosed in this specification can be understood as any numerical range that has any one of the multiple lower limit values and any one of the multiple upper limit values as the lower limit and the upper limit, respectively. For example, when the specification describes a to b, or c to d, it can be understood that a or more and b or less, a or more and d or less, c or more and d or less, or c or more and b or less is described.

As used herein, terms such as "about" or "substantially" mean a reasonable amount of variation from the term that does not significantly alter the final result. These terms may be interpreted to include a variation of at least ±5% or at least ±10%, provided that such variation does not alter the meaning of the term and render it invalid.

In this specification, the term "tobacco material" is not particularly limited and may include tobacco raw materials such as tobacco leaves, tobacco stems, etc., and materials processed therefrom. For example, the tobacco material may include tobacco leaves; expanded tobacco stems; tobacco cut fillers such as leaf tobacco cut fillers and flat leaf cut fillers; tobacco sheets such as flat leaf sheets; granular tobacco; or liquid tobacco compositions; etc. For example, the state of the tobacco material is not particularly limited and may be solid or liquid.

In this specification, "sheet" may be defined to mean a sub-sheet whose width, length, and thickness may be defined, or a laminate in which two or more of the sub-sheets are laminated. The shape of the sheet is not particularly limited, and may be a single sheet in a crimped shape, or a shape in which two or more of the cut sub-sheets are laminated. For example, when two or more of the cut sub-sheets are laminated, each of the sub-sheets may also be in a crimped shape.

In this specification, “upstream” or “upstream direction” may mean a direction away from the smoker’s mouth, and “downstream” or “downstream direction” may mean a direction toward the smoker’s mouth. The terms upstream and downstream may be used to describe the relative positions of components that make up the aerosol product.

In this specification, “longitudinal direction” may mean a direction corresponding to the longitudinal axis of the aerosol product.

In this specification, the "weight average molecular weight" of a compound can be calculated using the molecular weight and molecular weight distribution of the compound. At this time, the weight average molecular weight can be calculated using a method and device used in the art. For example, depending on the properties of the compound, it can be analyzed using a gel permeation chromatography (GPC) device or a gel filtration chromatography (GFC) device. For example, in the case of the GPC analysis method, a sample sample having a concentration of 1 wt% of the compound is prepared by adding tetrahydrofuran (THF) and the compound to a 1 ml glass bottle, and a standard sample (polystyrene) and the sample sample are filtered through a filter (pore size 0.45 μm), and then injected into a GPC injector, and the elution time of the sample sample is compared with the calibration curve of the standard sample, so that the molecular weight and molecular weight distribution of the compound can be obtained. At this time, Infinity II 1260 (Agilient) can be used as the measuring device, the flow rate can be set to 1.00 mL/min, and the column temperature can be set to 40.0 ℃. Meanwhile, for the GFC analysis method, the column is an Agilent 1200 Series HPLC system, the flow rate is 1 mL/min, the mobile phase is 0.02% sodium azide, the detector is an ELSD (Evaporative light scattering detector, Altech), and the calibration curve can be obtained from pullulan.

Hereinafter, the configuration of the present invention will be described in more detail with reference to the drawings.

Sheets for aerosol products

One embodiment of the present invention provides a sheet for an aerosol product comprising: an active material; an aerosol-forming material; a support; and a moisture control agent comprising a compound represented by the following chemical formula 1:

[Chemical Formula 1]

In the above chemical formula, R ₁ is hydrogen or a hydroxy group, and R ₂ to R ₄ are each independently a carboxyl group (-CO ₂ H); ; or , R ₁₁ is a straight or branched chain alkyl group having 1 to 3 carbon atoms, and R ₁₂ is a straight or branched chain alkyl group having 3 to 12 carbon atoms.

An aerosol product sheet according to one embodiment of the present invention can have excellent stability and processability by including a specific type of moisture control agent.

Active ingredient

According to one embodiment of the present invention, the sheet for the aerosol product comprises an active substance. Specifically, the sheet for the aerosol product comprises an active substance for delivering nicotine or a nicotine salt to a user.

As used herein, the term "active substance" may include at least one of an alkaloid compound and a cannabinoid compound that is delivered to a user when the aerosol product is heated in an aerosol generating device. Specifically, the active substance may be defined as including at least one of nicotine, a nicotine derivative, a nicotine salt, cannabidiol (CBD), and tetrahydrocannabinol (THC). In this case, when nicotine and an organic acid are combined, the pH of nicotine is lowered, so that it can be delivered to the user in the form of a nicotine salt with a high absorption rate in the human body.

According to one embodiment of the present invention, the content of the active material may be 0.1 to 8 parts by weight, 0.5 to 7 parts by weight, 0.9 to 6 parts by weight, 0.9 to 5 parts by weight, 0.9 to 4 parts by weight, or 0.9 to 3 parts by weight, based on 100 parts by weight of the sheet for the aerosol product. In addition, the content of the active material may be 0.1 to 8 parts by weight, 0.5 to 7 parts by weight, 0.9 to 6 parts by weight, 0.9 to 5 parts by weight, 0.9 to 4 parts by weight, or 0.9 to 3 parts by weight, based on the total weight of the sheet for the aerosol product. By adjusting the content of the above active substance within the above numerical range, the active substance can be sufficiently delivered to the user's mouth, thereby sufficiently achieving a sense of satisfaction from smoking.

According to one embodiment of the present invention, the content of the nicotine may be 0.1 to 3 parts by weight, 0.5 to 2 parts by weight, 0.9 to 2 parts by weight, or 0.9 to 1.5 parts by weight, based on 100 parts by weight of the sheet for the aerosol product. In addition, the content of the nicotine may be 0.1 to 3 parts by weight, 0.5 to 2 parts by weight, 0.9 to 2 parts by weight, or 0.9 to 1.5 parts by weight, based on the total weight of the sheet for the aerosol product. By adjusting the content of the nicotine within the above numerical range, nicotine or nicotine salt is sufficiently delivered to the user's mouth, thereby effectively providing the user with satisfaction with the taste and excellent smoking properties.

According to one embodiment of the present invention, the content of the organic acid may be 0.1 to 5 parts by weight, 0.5 to 4 parts by weight, 0.9 to 3 parts by weight, or 0.9 to 2 parts by weight, based on 100 parts by weight of the sheet for the aerosol product. In addition, the content of the organic acid may be 0.1 to 5 parts by weight, 0.5 to 4 parts by weight, 0.9 to 3 parts by weight, or 0.9 to 2 parts by weight, based on the total weight of the sheet for the aerosol product. According to one embodiment of the present invention, by adjusting the content of the organic acid within the above numerical range, the pH of nicotine can be sufficiently lowered, so that the nicotine salt in a salt state can be effectively delivered to the user's mouth.

According to one embodiment of the present invention, the organic acid is 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, It may include at least one selected from the group consisting of tartaric acid, succinic acid, fumaric acid, gluconic acid, malonic acid, and malic acid; or a hydrate thereof. Specifically, the organic acid may include citric acid and citric acid hydrate, and more specifically, the organic acid may include citric acid monohydrate. According to one embodiment of the present invention, when citric acid or citric acid monohydrate is used as the organic acid, the pH of nicotine can be lowered, thereby further increasing the absorption rate in the human body.

The hydrate of the organic acid described above may be one of the factors affecting the moisture content of the sheet for aerosol products. By using the hydrate of the organic acid described above, not only can the user's perceived heat be minimized, but an aerosol product sheet with excellent mechanical properties, such as resistance to tearing during winding, can be realized.

Aerosol forming substances

In this specification, “aerosol” may be defined as a mixture of fine solid particles or liquid droplets suspended in air or other gases.

According to one embodiment of the present invention, an aerosol product sheet comprises an aerosol-forming material that generates an aerosol when the aerosol product is inserted into an aerosol generating device and heated. In addition, the aerosol-forming material not only generates an aerosol, but also acts as one of the factors that control the moisture content of the aerosol product sheet, thereby simultaneously affecting the thermal sensation felt by a user when smoking and the ease of winding of the aerosol product sheet.

According to one embodiment of the present invention, the content of the aerosol-forming material based on 100 parts by weight of the sheet for the aerosol product 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, the content of the aerosol-forming material based on 100 parts by weight of the sheet for the aerosol product 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. In addition, the content of the aerosol-forming material may be 5 wt% to 50 wt%, 8 wt% to 47 wt%, 10 wt% to 45 wt%, 12 wt% to 40 wt%, 14 wt% to 38 wt%, or 15 wt% to 35 wt%, based on the total weight of the sheet for the aerosol product. Specifically, the content of the aerosol-forming material may be 20 wt% to 30 wt%, 23 wt% to 25 wt%, or 27 wt% to 30 wt%, based on the total weight of the sheet for the aerosol product. By controlling the content of the aerosol-forming material within the above numerical range, when the sheet for the aerosol product is heated, an aerosol can be sufficiently generated to promote the transfer of the active material.

For example, the aerosol-forming material 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 may specifically include glycerin.

Support

According to one embodiment of the present invention, the sheet for the aerosol product includes a support. The support may be a component forming the basic skeleton of the sheet for the aerosol product.

In this specification, “water-insoluble” may mean that the amount of solute that dissolves in 100 g of water at 20°C is 10 g or less, 5 g or less, 1 g or less, 0.1 g or less, 0.01 g or less, 0.001 g or less, 0.0001 g or less, or 0 g or less. The water-insoluble porous material described below may have the above solubility range in water.

According to one embodiment of the present invention, the support may include a water-insoluble porous material. The water-insoluble porous material can reversibly adsorb active substances, aerosol-forming substances, etc. That is, when the sheet for aerosol product is stored, volatilization of components such as active substances, aerosol-forming substances, and additives from the sheet for aerosol product can be minimized. In addition, when the sheet for aerosol product is heated, the components such as active substances, aerosol-forming substances, and additives adsorbed to the water-insoluble porous material can be desorbed from the water-insoluble porous material and aerosolized.

According to one embodiment of the present invention, the water-insoluble porous material may be any material used in the art without limitation, as long as it can reversibly adsorb components such as active substances and aerosol-forming substances. For example, the water-insoluble porous material may include at least one of a cellulose-based material and a cellulose derivative material. For example, the cellulose-based material may refer to a lattice-shaped polysaccharide in which linear chains in which D-glucose units are linked by β-glycosidic bonds are overlapped. The cellulose derivative material may refer to a material that uses the cellulose-based material as a basic matrix, but to which at least one of introduction of a functional group, oxidation, reduction, and substitution of atoms is applied. For example, the cellulose derivative material may be esterified cellulose or etherified cellulose. Specifically, the water-insoluble porous material may include microcrystalline cellulose (MCC), but the type of the water-insoluble porous material is not limited thereto.

According to one embodiment of the present invention, based on 100 parts by weight of the sheet for aerosol products, the content of the support may be 20 parts by weight or more and 80 parts by weight or less. Specifically, the content of the support may 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, based on 100 parts by weight of the sheet for aerosol products. In addition, based on the total weight of the sheet for aerosol products, the content of the support may 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 support is within the above-mentioned range, the mechanical properties of the sheet for an aerosol product can be secured, while the volatilization of active substances, aerosol-forming substances, etc. can be minimized, and the strength and durability of the sheet for an aerosol product can be effectively improved. In addition, by adjusting the content of the support within the above-mentioned range, the sheet for an aerosol product can be effectively generated when heating.

moisture regulator

According to one embodiment of the present invention, the sheet for the aerosol product comprises a moisture control agent. Specifically, the moisture control agent comprises a compound represented by the following chemical formula 1.

[Chemical Formula 1]

In the above chemical formula 1, R ₁ is hydrogen or a hydroxy group, and R ₂ to R ₄ are each independently a carboxyl group (-CO ₂ H); ; or , and R ₁₁ is a straight-chain or branched-chain alkyl group having 1 to 3 carbon atoms, and R ₁₂ is a straight-chain or branched-chain alkyl group having 3 to 12 carbon atoms. Specifically, the alkyl group carbon number of R ₁₁ may be 1 to 2 or 2 to 3, and the alkyl group carbon number of R ₁₂ may be 5 to 10, 7 to 10, 3 to 10, 5 to 9, 7 to 12, or 7 to 9. In the chemical formula, “*” indicates a bonding position.

By using a moisture control agent including a compound represented by the above chemical formula 1, the storage stability and processability of the sheet for the aerosol product can be improved. Specifically, by including the moisture control agent, the sheet for the aerosol product can improve the moisture absorption prevention properties of the sheet for the aerosol product. As a result, the sheet for the aerosol product can have excellent long-term storage reliability, and can effectively suppress deformation or damage of the sheet when stored under humid conditions.

According to one embodiment of the present invention, at least two of R ₂ to R ₄ may be the same. When a moisture control agent including a compound represented by the above chemical formula 1 in which at least two of R ₂ to R ₄ are the same is used, the storage stability and processability of the sheet for the aerosol product can be effectively improved.

According to one embodiment of the present invention, the moisture control agent may include a compound represented by the following chemical formula 1-1.

[Chemical Formula 1-1]

In the above chemical formula 1-1, R ₁ is a hydroxy group, R ₂₁ to R ₂₃ are each independently hydrogen; or a straight-chain or branched-chain alkyl group having 1 to 3 carbon atoms; and at least one of R ₂₁ to R ₂₃ is a straight-chain or branched-chain alkyl group having 1 to 3 carbon atoms. Specifically, the carbon atoms of the alkyl groups of R ₂₁ to R ₂₃ may each independently be 1 to 2, or 2 to 3. In addition, at least two of R ₂₁ to R ₂₃ may each independently be a straight-chain or branched-chain alkyl group having 1 to 3 carbon atoms. In addition, when R ₂₁ to R ₂₃ are each independently the alkyl groups, they may be the same.

By using a moisture control agent including a compound represented by the above chemical formula 1-1, the moisture-preventing properties of the sheet for the aerosol product can be improved, and the moisture content contained in the sheet for the aerosol product can be easily controlled. In addition, when using a moisture control agent including a compound represented by the above chemical formula 1-1, an aerosol product sheet with excellent long-term storage reliability can be realized.

According to one embodiment of the present invention, the moisture control agent may include a compound represented by the following chemical formula 1-2.

[Chemical Formula 1-2]

In the above chemical formula 1-2, R ₃₁ to R ₃₃ are each independently a straight-chain or branched-chain alkyl group having 3 to 12 carbon atoms. Specifically, the alkyl group carbon atoms of R ₃₁ to R ₃₃ may each independently be 5 to 10, 7 to 10, 3 to 10, 5 to 9, 7 to 12, or 7 to 9. In addition, at least two of R ₃₁ to R ₃₃ may be the same. In addition, the alkyl group carbon atoms of R ₃₃ may be greater than the alkyl group carbon atoms of R ₃₁ and R _32. When a moisture control agent including a compound represented by the above chemical formula 1-2 is used, the storage stability and processability of the sheet for the aerosol product can be effectively improved.

According to one embodiment of the present invention, the content of the moisture control agent may be 0.1 parts by weight or more and 5 parts by weight or less, based on 100 parts by weight of the sheet for the aerosol product. Specifically, the content of the moisture control agent 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, based on 100 parts by weight of the sheet for the aerosol product. In addition, based on the total weight of the sheet for the aerosol product, the content of the moisture control agent may be 0.1 wt% or more and 5 wt% or less, 0.5 wt% or more and 4.5 wt% or less, 1.5 wt% or more and 3.5 wt% or less, 0.5 wt% or more and 3 wt% or less, 2.5 wt% or more and 5 wt% or less, or 1 wt% or more and 1.5 wt% or less. When the content of the moisture control agent is within the above-mentioned range, the moisture-preventing properties of the sheet for the aerosol product can be improved, and the moisture content contained in the sheet for the aerosol product can be easily controlled. In addition, by controlling the content of the moisture control agent within the above-mentioned range, the long-term storage reliability of the sheet for the aerosol product can be further improved, and deformation or damage of the sheet can be effectively suppressed when stored under humid conditions.

According to one embodiment of the present invention, the weight ratio of the moisture control agent and the aerosol forming material may be 1:3 to 1:100. Specifically, the weight ratio of the moisture control agent and the aerosol forming material may be 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 control agent and the aerosol forming material included in the sheet for the aerosol product is within the above-mentioned range, the moisture-preventing properties of the sheet for the aerosol product can be improved, and aerosol formation can be smoothly performed when the sheet is heated, thereby realizing rich smoking transfer properties.

filler

According to one embodiment of the present invention, the sheet for the aerosol product may include a filler. The filler may serve to reinforce the mechanical properties, such as strength and durability, of the sheet for the aerosol product.

According to one embodiment of the present invention, the filler may be a non-tobacco material. Specifically, the filler may include at least one of a cellulose-based material and a cellulose derivative material. For example, the cellulose-based material may refer to a lattice-shaped polysaccharide in which linear chains in which D-glucose units are linked by β-glycosidic bonds are overlapped. The cellulose derivative material may refer to a material that uses the cellulose-based material as a basic matrix, but to which at least one or more of the introduction of a functional group, oxidation, reduction, and substitution of an atom has been applied. For example, the cellulose derivative material may be an esterified cellulose or an etherified cellulose. For example, the filler may include at least one of wood fiber, wheat fiber, and pulp (e.g., wood pulp). By using the above-described types of fillers, the mechanical properties of the sheet for the aerosol product can be effectively improved.

According to one embodiment of the present invention, based on 100 parts by weight of the sheet for aerosol products, the content of the filler may be 3 parts by weight or more and 8 parts by weight or less. Specifically, the content of the filler may 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, based on 100 parts by weight of the sheet for aerosol products. In addition, based on the total weight of the sheet for aerosol products, the content of the filler may 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 above-mentioned range, the filler can effectively improve the strength and durability of the sheet for aerosol products.

bookbinder

According to one embodiment of the present invention, the sheet for the aerosol product may include a binder. The binder may play a role in ensuring that components can stably exist within the sheet for the aerosol product.

According to one embodiment of the present invention, the binder may include a binder material that provides a flexible polymer matrix capable of forming a sheet shape. Specifically, the binder material may include at least one of a cellulose-based polymer, guar gum, xanthan gum, gum arabic, agar, pectin, and alginate.

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

According to one embodiment of the present invention, the weight average molecular weight of the binder material may be 10,000 g/mol or more and 2,000,000 g/mol or less. Specifically, the weight average molecular weight of the binder material is 20,000 g/mol or more and 1,800,000 g/mol or more, 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, 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, 30,000 g/mol or more but not more than 700,000 g/mol and not more than 1,000,000 g/mol and not more than 2,000,000 g/mol, 1,200,000 g/mol or more but not more than 1,800,000 g/mol, 1,400,000 g/mol or more but not more than 1,600,000 g/mol, 1,000,000 g/mol or more but not more than 1,500,000 g/mol, or 1,500,000 g/mol or more but not more than 2,000,000 g/mol.

When the weight average molecular weight of the above-mentioned binder material is within the aforementioned range, the active substance, aerosol-forming substance, etc. can stably exist within the sheet for the aerosol product. Through this, the smoking properties of the sheet for the aerosol product can be further improved.

According to one embodiment of the present invention, the weight average molecular weight of the cellulose-based polymer as the binder material may be 10,000 g/mol or more and 700,000 g/mol or less. Specifically, the weight average molecular weight of the cellulose-based polymer as the binder material may 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. In addition, the weight average molecular weight of the guar gum as the binder material may be 1,000,000 g/mol or more and 2,000,000 g/mol or less. Specifically, the weight average molecular weight of the guar gum as the binder material may 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 more, or 1,500,000 g/mol or more and 2,000,000 g/mol or less.

According to one embodiment of the present invention, based on 100 parts by weight of the sheet for the aerosol product, the content of the binder may be 3 parts by weight or more and 15 parts by weight or less. Specifically, the content of the binder may 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, based on 100 parts by weight of the sheet for the aerosol product. In addition, based on the total weight of the sheet for the aerosol product, the content of the binder may 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 binder is within the above-mentioned range, the mechanical properties of the sheet for an aerosol product can be secured, while the active substance, the aerosol-forming substance, the flavoring agent, etc. can be stably retained within the sheet for an aerosol product.

Bulking agent

According to one embodiment of the present invention, the sheet for an aerosol product may include a bulking agent. The bulking agent may increase the total mass of components other than water in the composition for forming an aerosol product sheet, thereby increasing the volume of the sheet for an aerosol product. In addition, the bulking agent may not substantially increase the viscosity of the composition for forming an aerosol product sheet.

According to one embodiment of the present invention, the bulking agent may include at least one of starch and a starch hydrolyzate. The starch hydrolyzate may refer to a material obtained by a process including a process of hydrolyzing starch. The starch hydrolyzate may be, for example, a material obtained by directly hydrolyzing starch (i.e., dextrin) or a material obtained by heat-treating and then hydrolyzing starch (i.e., indigestible dextrin). For example, the bulking agent may include dextrin. Specifically, the bulking agent may include at least one of cyclodextrin and maltodextrin. However, the type of dextrin is not limited thereto.

According to one embodiment of the present invention, the bulking agent may include a starch hydrolyzate having a DE value of 1 or more and 20 or less. For example, the DE value of the starch hydrolyzate may be 2 or more and 18 or less, 3 or more and 15 or less, 5 or more and 10 or less, 10 or more and 20 or less, 12 or more and 18 or less, 1 or more and 5 or less, or 1 or more and 10 or less. Specifically, the starch hydrolyzate may include at least one of a dextrin having a DE value of 1 or more and 5 or less and a resistant dextrin having a DE value of 10 or more and 20 or less. More specifically, the bulking agent may include the dextrin as a starch hydrolyzate. By using a bulking agent including a starch hydrolyzate having the above-described DE value, shrinkage of the sheet for an aerosol product can be prevented during the manufacturing process and storage of the sheet. Through this, processability can be improved during the manufacturing of sheets for aerosol products, and storage stability can be improved.

DE is an abbreviation for dextrose equivalent, and the DE value indicates the degree of hydrolysis of starch, i.e. the saccharification rate of starch. ) is a value representing the DE value. In the present invention, the DE value is a value measured by the Willstatter-Schudel method. The DE value is measured as a specific numerical value by the Willstatter-Schudel method. The properties of hydrolyzed starch (starch hydrolysate), such as the molecular weight of the starch hydrolysate or the arrangement of sugar molecules constituting the starch hydrolysate, are not constant for each molecule of the starch hydrolysate, but exist with a certain distribution or variation. Depending on the distribution or variation of the properties of the starch hydrolysate, or the difference in the cut section, the starch hydrolysate exhibits different physical properties (e.g., DE value) for each molecule. In this way, the starch hydrolysate is a collection of molecules exhibiting different physical properties, but the measurement result (i.e., DE value) in the Willstatter-Schudel method is treated as a representative value representing the degree of starch hydrolysis.

According to one embodiment of the present invention, the content of the bulking 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 the aerosol product. Specifically, the content of the bulking 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, based on 100 parts by weight of the sheet for the aerosol product. In addition, based on the total weight of the sheet for the aerosol product, the content of the bulking agent may be 1 wt% or more and 20 wt% or less, 2 wt% or more and 15 wt% or less, 5 wt% or more and 10 wt% or less, 8 wt% or more and 20 wt% or less, 8 wt% or more and 15 wt% or less, 1 wt% or more and 10 wt% or less, or 5 wt% or more and 20 wt% or less. When the content of the bulking agent is within the above-mentioned range, shrinkage of the sheet for the aerosol product can be effectively prevented during the manufacturing process and storage of the sheet for the aerosol product. In addition, by adjusting the content of the bulking agent within the above-mentioned range, the flavor retention period of the sheet for the aerosol product can be extended, and the water solubility, heat stability, and oxidation resistance of flavor components can be improved.

According to one embodiment of the present invention, when the binder includes a binder material having a weight average molecular weight of 250,000 g/mol or more and 2,000,000 g/mol or less, the content of the bulking 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 the aerosol product. In addition, when the binder includes a binder material having a weight average molecular weight of 250,000 g/mol or more and 2,000,000 g/mol or less, the content of the bulking agent may be 1% by weight or more and 20% by weight or less, based on the total weight of the sheet for the aerosol product.

According to one embodiment of the present invention, when the binder includes a binder material 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 bulking agent may be 8 parts by weight or more and 20 parts by weight or less, based on 100 parts by weight of the sheet for the aerosol product. Specifically, when the binder includes 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 a binder material, the content of the bulking agent 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, based on 100 parts by weight of the sheet for the aerosol product. In addition, when the binder includes guar gum as a binder material 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 bulking agent may be 8 wt% or more and 20 wt% or less, 9 wt% or more and 17 wt% or less, 10 wt% or more and 15 wt% or less, 8 wt% or more and 10 wt% or less, 9 wt% or more and 12 wt% or less, or 8 wt% or more and 15 wt% or less, based on the total weight of the sheet for the aerosol product. At this time, a bulking agent including dextrin having a DE value of 1 or more and 5 or less may be used.

When using a binder material having the above-described weight average molecular weight, the sheet for an aerosol product may tend to shrink during the manufacturing process and storage thereof. Therefore, by adjusting the content of the bulking agent within the above-described range, the problem of the sheet shrinking during the manufacturing process and storage thereof can be effectively suppressed.

According to one embodiment of the present invention, when the binder includes a binder material having a weight average molecular weight of 250,000 g/mol or more and 700,000 g/mol or less, the content of the bulking agent may be 1 part by weight or more and less than 8 parts by weight based on 100 parts by weight of the sheet for the aerosol product. Specifically, when the binder includes a cellulose-based polymer having a weight average molecular weight of 250,000 g/mol or more and 700,000 g/mol or less as a binder material, the content of the bulking agent may 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, based on 100 parts by weight of the sheet for the aerosol product. In addition, when the binder includes guar gum as a binder material having a weight average molecular weight of 250,000 g/mol or more and 700,000 g/mol or less, the content of the bulking agent may be 1 wt% or more and less than 8 wt%, 2 wt% or more and 6 wt% or less, 3 wt% or more and 5 wt% or less, or 1 wt% or more and 5 wt% or less, based on the total weight of the sheet for the aerosol product. At this time, a bulking agent including dextrin having a DE value of 1 or more and 5 or less may be used, and thus excellent moisture absorption characteristics may be implemented.

According to one embodiment of the present invention, when the binder includes a binder material having a weight average molecular weight of 10,000 g/mol or more and 50,000 g/mol or less, the content of the bulking agent may be 0 part by weight or more and less than 1.0 part by weight, 0 part by weight or more and 0.9 part by weight or less, 0 part by weight or more and 0.8 part by weight or less, 0 part by weight or more and 0.7 part by weight or less, 0 part by weight or more and 0.6 part by weight or less, 0 part by weight or more and 0.5 part by weight or less, 0 part by weight or more and 0.4 part by weight or less, 0 part by weight or more and 0.3 part by weight or less, 0 part by weight or more and 0.2 part by weight or less, or 0 part by weight or more and 0.1 part by weight or less, based on 100 parts by weight of the sheet for the aerosol product. In addition, when the binder includes a binder material having a weight average molecular weight of 10,000 g/mol or more and 50,000 g/mol or less, the content of the bulking agent may be 0 wt% or more and 1.0 wt% or less, 0 wt% or more and 0.9 wt% or less, 0 wt% or more and 0.8 wt% or less, 0 wt% or more and 0.7 wt% or less, 0 wt% or more and 0.6 wt% or less, 0 wt% or more and 0.5 wt% or less, 0 wt% or more and 0.4 wt% or less, 0 wt% or more and 0.3 wt% or less, 0 wt% or more and 0.2 wt% or less, or 0 wt% or more and 0.1 wt% or less, based on the total weight of the sheet for the aerosol product. Specifically, when the binder comprises a binder material having a weight average molecular weight of 10,000 g/mol or more and 50,000 g/mol or less, the sheet for the aerosol product may not include a bulking agent. More specifically, when the binder comprises a cellulose-based polymer having a weight average molecular weight of 10,000 g/mol or more and 50,000 g/mol or less as the binder material, the sheet for the aerosol product may not include a bulking agent.

When a binder material having the above-described weight-average molecular weight is used, the sheet may have a low tendency to shrink during the manufacturing process and storage of the sheet for an aerosol product. Accordingly, by adjusting the content of the bulking agent within the above-described range, shrinkage of the sheet during the manufacturing process and storage of the sheet for an aerosol product can be suppressed, while still allowing the sheet for an aerosol product to have an appropriate volume. This can improve the smoking properties of the sheet for an aerosol product.

That is, according to one embodiment of the present invention, by controlling the content of the bulking agent in consideration of the weight average molecular weight of the binder material included in the sheet for the aerosol product, the shrinkage of the sheet for the aerosol product can be effectively suppressed while improving the smoking properties.

additives

According to one embodiment of the present invention, the sheet for the aerosol product may include an additive. Specifically, the additive may include at least one of an emulsifier, a flavoring agent, an extract, and a vitamin component. The additive may be included in a solid form, such as a powder form, a granulated form, a sheet form, etc. In addition, the additive may be included in a semi-solid form, such as a gel form, a paste form, etc. In addition, the additive may be included in a liquid form, such as an oil form, a dispersion form, etc. In addition, depending on the type of additive, it may be included in the form of an extract.

According to one embodiment of the present invention, the emulsifier can increase the fragrance retention capacity of a sheet for an aerosol product by ensuring that a highly fat-soluble fragrance and a water-soluble polysaccharide substance are well mixed. Lecithin is an example of the emulsifier, but the type of the emulsifier is not limited.

According to one embodiment of the present invention, the flavoring agent is menthol, terpene, terpenoid, eugenol, eucalyptol, cognac, natural plant flavoring agent (e.g., cinnamon, sage, herbs, chamomile, rosemary, kudzu, amacha, clove, lavender, cardamom, clove, nutmeg, bergamot, geranium, rose oil, lemon, orange, cinnamon, caraway, jasmine, ginger, coriander, coriander, spearmint, peppermint, cassia, coffee, celery, cascarilla, sandalwood, ylang-ylang, fennel, anise, licorice, St. John's bread, etc.), sugar (e.g., glucose, fructose, isomerized sugar, caramel, etc.), ester (e.g., isoamyl acetate, linalyl acetate, isoamyl propionate, linalyl butyrate, etc.), Examples of the flavoring agents include ketones (e.g., menthone, ionone, damascenone, ethyl maltol, etc.), alcohols (e.g., geraniol, linalool, anethole, eugenol, etc.), aldehydes (e.g., vanillin, benzaldehyde, anisaldehyde, etc.), lactones (e.g., γ-undecalactone, γ-nonalactone, etc.), animal flavoring agents (e.g., musk, ambergris, civet, castrium, etc.), and hydrocarbons (e.g., limonene, pinene, etc.). The flavoring agents may be used in a solid form, or may be dissolved or dispersed in a suitable solvent such as propylene glycol, ethyl alcohol, benzyl alcohol, or triethyl citrate. In addition, flavoring agents that are easily dispersed in a solvent by the addition of an emulsifier, such as hydrophobic flavoring agents or oil-soluble flavoring agents, can be used. These flavoring agents may be used alone or in mixtures, but the types of flavoring agents used are not limited.

For example, the formulation of the flavoring agent is not particularly limited and may be a solid, a semi-solid, a solution, or a suspension. For example, the solid may include at least one of a powder and a granule, and the semi-solid may include at least one of a gel and a paste. For example, when the flavoring agent is an herb powder, the herb powder may be prepared by washing and drying at least one selected from the group consisting of peppermint, rosemary, lavender, rooibos, lemongrass, lemon balm, earl grey, mint, chamomile, coriander, and mugwort, and then grinding them. In addition, depending on the type of material used as the flavoring agent, an extract may be included in the form of a solid, semi-solid, or liquid.

According to one embodiment of the present invention, the extract may include at least one of a vanilla extract, a natural fruit extract, a cocoa extract, a honey extract, a flower extract, and a herb extract, but the type of the extract is not limited.

According to one embodiment of the present invention, the vitamin component may include at least one of vitamin A, vitamin B, vitamin C, and vitamin E, but the type of the vitamin component is not limited.

According to one embodiment of the present invention, based on 100 parts by weight of the sheet for aerosol products, the content of the additive may be 0.1 parts by weight or more and 15 parts by weight or less. Specifically, 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, based on 100 parts by weight of the sheet for aerosol products. In addition, based on the total weight of the sheet for aerosol products, 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 above-mentioned additive is within the aforementioned range, it is possible to provide persistence of the fragrance and/or flavor delivered from the sheet for the aerosol product. Furthermore, not only is high concentration application possible, but the intensity of the fragrance and/or flavor can be controlled depending on the concentration added.

moisture

According to one embodiment of the present invention, the sheet for the aerosol product may contain water (moisture) that affects the thermal sensation felt by the user of the aerosol product and the mechanical properties thereof. Specifically, when the moisture content of the sheet for the aerosol product is high, the ease of winding may be excellent, but the amount of vaporized water vapor may increase, which may cause a problem in that the thermal sensation intensity felt by the user may increase. On the other hand, when the moisture content of the sheet for the aerosol product is low, the amount of vaporized water vapor decreases, which may reduce the thermal sensation intensity, but may cause a problem in that the mechanical properties, such as the sheet tearing during winding, may decrease. In other words, thermal performance and mechanical properties are in a trade-off relationship in that as one performance increases, the other performance decreases.

According to one embodiment of the present invention, the moisture content of the sheet for aerosol product may 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, based on 100 parts by weight of the sheet for aerosol product. In addition, the moisture content may 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, based on the total weight of the sheet for aerosol product. For example, the moisture content of the sheet for the aerosol product may be measured under conditions of 22.5° C. and a relative humidity of 40%. According to one embodiment of the present invention, by controlling the moisture content of the sheet for the aerosol product within the above numerical range, both performances in the above trade-off relationship can be achieved. That is, according to one embodiment of the present invention, it is possible to implement an aerosol product sheet having excellent mechanical properties while minimizing the heat sensation felt by a user when smoking.

Tobacco substances

According to one embodiment of the present invention, the sheet for the aerosol product may contain a trace amount of tobacco material, or may not contain tobacco material. For example, the sheet for the aerosol product may be a sheet that does not contain tobacco material.

According to one embodiment of the present invention, the content of the tobacco material based on 100 parts by weight of the sheet for the aerosol product may 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 the tobacco material included in the sheet for the aerosol product may be 0 parts by weight.

Composition for forming sheets for aerosol products

According to one embodiment of the present invention, the sheet for an aerosol product may be manufactured using the composition for forming a sheet for an aerosol product. Specifically, the sheet for an aerosol product may include a dried product of the composition for forming a sheet for an aerosol product. Accordingly, the support, filler, aerosol-forming material, binder, moisture control agent, active material, bulking agent, additive, etc. included in the composition for forming a sheet for an aerosol product according to the present embodiment may be the same as the support, filler, aerosol-forming material, binder, moisture control agent, active material, bulking agent, additive, etc. included in the composition for forming a sheet for an aerosol product according to the above-described embodiment.

Therefore, in the following, the same parts will be omitted and explained in comparison to the aforementioned implementation state.

According to one embodiment of the present invention, the sheet-forming composition for the aerosol product may include a sheet-forming material; and a solvent. Specifically, the sheet-forming material may include an active material; an aerosol-forming material; a support; and a moisture control agent including a compound represented by the chemical formula 1. In addition, the sheet-forming material may further include at least one of a filler, a binder, a bulking agent, and an additive. In this case, the sheet-forming material may be defined as including all components except for the solvent included in the sheet-forming composition for the aerosol product.

According to one embodiment of the present invention, the drying temperature of the composition for forming a sheet for an aerosol product may be 80°C or more and 150°C or less, 85°C or more and 145°C or less, 90°C or more and 140°C or less, 95°C or more and 135°C or less, 100°C or more and 130°C or less, 105°C or more and 120°C or less, or 105°C or more and 110°C or less.

According to one embodiment of the present invention, the drying time of the composition for forming a sheet for an aerosol product may 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 based on a sheet thickness of 200 ㎛.

According to one embodiment of the present invention, the drying temperature and drying time of the composition for forming the sheet for the aerosol product are simultaneously controlled within the above numerical ranges, thereby reducing the moisture content in the sheet for the aerosol product to an appropriate level, and accordingly, an aerosol product having excellent mechanical properties, which does not tear when wound, and whose heat sensitivity is controlled can be implemented.

According to one embodiment of the present invention, the sheet-forming composition for the aerosol product may include a solvent. The solvent may include a hydrophilic solvent, and specifically, the solvent may include water. The sheet-forming composition for the aerosol product may have a content of the solvent of 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, based on 100 parts by weight of the sheet-forming material. When the content of the solvent is within the above-mentioned range, the sheet-forming material may be homogeneously mixed in the sheet-forming composition for the aerosol product, and the processability of the sheet-forming composition for the aerosol product may be improved.

According to one embodiment of the present invention, the sheet-forming composition for the aerosol product may have an active material content of 0.1 to 10 parts by weight, 0.1 to 8 parts by weight, 0.5 to 7 parts by weight, 1 to 6 parts by weight, 1 to 5 parts by weight, 2 to 4 parts by weight, or 2 to 3 parts by weight, based on 100 parts by weight of the sheet-forming material. In addition, the active material content may be 0.1 to 10% by weight, 0.1 to 8% by weight, 0.5 to 7% by weight, 1 to 6% by weight, 1 to 7% by weight, 2 to 4% by weight, or 2 to 3% by weight, based on the total weight of the sheet-forming material. When the content of the above active substance is within the above-mentioned range, a sheet for an aerosol product having excellent nicotine transfer ability can be easily manufactured.

According to one embodiment of the present invention, the composition for forming a sheet for an aerosol product may have a content of nicotine of 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, based on 100 parts by weight of the sheet-forming material. In addition, the content of nicotine may 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, based on the total weight of the sheet-forming material. By adjusting the content of nicotine within the above numerical range, nicotine or a nicotine salt is sufficiently delivered to the user's mouth, thereby effectively providing the user with satisfaction with the taste and excellent smoking properties.

According to one embodiment of the present invention, the composition for forming a sheet for an aerosol product may have a content of the organic acid of 0.1 to 6 parts by weight, 0.5 to 5 parts by weight, 0.9 to 4 parts by weight, or 0.9 to 3 parts by weight, based on 100 parts by weight of the sheet-forming material. In addition, the content of the nicotine may be 0.1 to 6% by weight, 0.5 to 5% by weight, 0.9 to 4% by weight, or 0.9 to 3% by weight, based on the total weight of the sheet-forming material. According to one embodiment of the present invention, by adjusting the content of the organic acid within the above numerical range, the pH of the nicotine can be sufficiently lowered, so that the nicotine salt in a salt state can be effectively delivered to the user's mouth.

According to one embodiment of the present invention, the composition for forming a sheet for an aerosol product may have a content of the aerosol-forming material of 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, based on 100 parts by weight of the sheet-forming material. In addition, the content of the aerosol-forming material may be 5 wt% or more and 60 wt% or less, 5 wt% or more and 50 wt% or less, 8 wt% or more and 47 wt% or less, 10 wt% or more and 45 wt% or less, 12 wt% or more and 40 wt% or less, 14 wt% or more and 38 wt% or less, or 15 wt% or more and 35 wt% or less, based on the total weight of the sheet-forming material. When the content of the aerosol-forming material is within the above-mentioned range, a sheet for an aerosol product capable of generating a rich aerosol when heated can be easily implemented.

According to one embodiment of the present invention, the sheet-forming composition for the aerosol product may have a content of the support of 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, based on 100 parts by weight of the sheet-forming material. In addition, the content of the support may 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 less, or 45% by weight or more and 80% by weight or less, based on the total weight of the sheet-forming material. When the content of the support is within the above-mentioned range, a sheet for an aerosol product having excellent mechanical properties and storage stability can be easily produced.

According to one embodiment of the present invention, the composition for forming a sheet for an aerosol product may have a content of the moisture control agent of 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, based on 100 parts by weight of the sheet forming material. In addition, the content of the moisture control agent may be 0.1 wt% or more and 6 wt% or less, 0.1 wt% or more and 5 wt% or less, 0.5 wt% or more and 4.5 wt% or less, 1.5 wt% or more and 3.5 wt% or less, 0.5 wt% or more and 3 wt% or less, or 1.3 wt% or more and 5 wt% or less, based on the total weight of the sheet forming material. When the content of the moisture control agent is within the above-mentioned range, a sheet for an aerosol product having excellent moisture absorption prevention properties and long-term storage reliability can be easily produced.

According to one embodiment of the present invention, the composition for forming a sheet for an aerosol product may have a content of the filler of 3 parts by weight or more and 9 parts by weight or less, 3 parts by weight or more and 7 parts by weight or less, 4 parts by weight or more and 5 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 8 parts by weight or less, based on 100 parts by weight of the sheet-forming material. In addition, the content of the filler may 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, based on the total weight of the sheet-forming material. When the content of the filler is within the above-mentioned range, a sheet for an aerosol product with improved mechanical properties can be easily implemented.

According to one embodiment of the present invention, the composition for forming a sheet for an aerosol product may have a binder content of 3 parts by weight or more and 20 parts by weight or less, 3 parts by weight or more and 15 parts by weight or less, 4 parts by weight or more and 12 parts by weight or less, 4 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, based on 100 parts by weight of the sheet-forming material. In addition, the binder content may 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, based on the total weight of the sheet-forming material. When the binder content is within the above-mentioned range, components can be stably retained in the sheet for an aerosol product.

According to one embodiment of the present invention, the composition for forming a sheet for an aerosol product may have a content of the bulking agent of 1 part by weight or more and 25 parts by weight or less, 1 part by weight or more and 20 parts by weight or less, 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, 6 parts by weight or more and 10 parts by weight or less, 6 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, based on 100 parts by weight of the sheet forming material. In addition, the content of the bulking agent may be 1 wt% or more and 25 wt% or less, 1 wt% or more and 20 wt% or less, 2 wt% or more and 15 wt% or less, 5 wt% or more and 10 wt% or less, 6 wt% or more and 10 wt% or less, 6 wt% or more and 20 wt% or less, 8 wt% or more and 15 wt% or less, 1 wt% or more and 10 wt% or less, or 5 wt% or more and 20 wt% or less, based on the total weight of the sheet-forming material. When the content of the bulking agent is within the above-mentioned range, shrinkage of the sheet for an aerosol product can be effectively suppressed during the manufacturing process and storage of the sheet.

According to one embodiment of the present invention, the sheet-forming composition for the aerosol product may have an additive content of 0.1 to 18 parts by weight, 0.1 to 15 parts by weight, 0.5 to 12 parts by weight, 1 to 7 parts by weight, 0.1 to 5 parts by weight, or 3 to 15 parts by weight, based on 100 parts by weight of the sheet-forming material. In addition, the additive content may be 0.1 to 18% by weight, 0.1 to 15% by weight, 0.5 to 12% by weight, or 1 to 7% by weight, based on the total weight of the sheet-forming material. When the content of the above additive is within the above-mentioned range, a sheet for an aerosol product with controlled intensity of fragrance and/or taste can be easily implemented.

According to one embodiment of the present invention, the sheet-forming material included in the sheet-forming composition for the aerosol product may remain in the sheet for the aerosol product. Specifically, when the sheet-forming composition for the aerosol product is dried to manufacture the sheet for the aerosol product, the sheet-forming material may remain in the sheet for the aerosol product. Accordingly, the content ratio of the components included in the sheet-forming material may be the same in the sheet-forming composition for the aerosol product and in the sheet for the aerosol product.

According to one embodiment of the present invention, the viscosity of the sheet-forming composition for the aerosol product may be 7,000 cP or more and 18,000 cP or less at 23°C, specifically, 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 16,000 cP or less, 17,000 cP or less, or 18,000 cP or less. For example, the viscosity of the sheet-forming composition for the aerosol product may be measured using a viscometer (equipment name: Brookfield Viscometer DV2T). By controlling the viscosity of the sheet-forming composition for the aerosol product within the above-mentioned range, a sheet having advantageous processability, low variation in sheet thickness, and excellent mechanical properties can be realized.

physical properties

According to one embodiment of the present invention, the thickness of the sheet for the aerosol product may be 180 ㎛ or more and 220 ㎛ or less, 185 ㎛ or more and 215 ㎛ or less, 190 ㎛ or more and 210 ㎛ or less, 195 ㎛ or more and 205 ㎛ or less, or 200 ㎛ or more and 202 ㎛ or less. Specifically, when the thickness of the sheet is adjusted within the above-mentioned range, the workability of the sheet and uniformity of suction resistance can be achieved simultaneously. Meanwhile, depending on the physical properties required for the sheet, the conditions under which the sheet is used, etc., the thickness of the sheet may be adjusted outside the above-mentioned range.

According to one embodiment of the present invention, the width of the sheet for the aerosol product may 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. In addition, the length of the sheet for the aerosol product may 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. Meanwhile, depending on the physical properties required for the sheet, the conditions under which the sheet is used, etc., the width and length of the sheet may be adjusted outside the aforementioned range.

According to one embodiment of the present invention, the tensile strength of the sheet for the aerosol product may 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 sheet for the aerosol product having the tensile strength in the above-described range may have excellent processability, durability, and mechanical strength.

According to one embodiment of the present invention, the elongation of the sheet for the aerosol product may 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 the aerosol product is within the above-mentioned range, the processability and mechanical durability of the sheet may be excellent. In this case, the elongation of the sheet for the aerosol product may mean the elongation at break.

According to one embodiment of the present invention, the tensile strength and elongation of the sheet for the aerosol product can be measured using a measuring method and measuring device used in the art. For example, the tensile strength and elongation of the sheet can be measured using the method described in the 2014 publication of the international standard ISO 1924/2 entitled “Paper and board - Determination of tensile properties - Part 2: Constant rate drawing method.” In addition, the tensile strength and elongation of the sheet can be measured using a vertical tensile strength tester (equipment name: Universal Tester Vertical; FRANK-PTI GMBH).

According to one embodiment of the present invention, the basis weight of the sheet for the aerosol product may be 132 g/m ² or more and 145 g/m ² or less, specifically 134 g/m ² or more, 136 g/m ² or more, 138 g/m ² or more, or 140 g/m ² or less, 138 g/m ² or less, 140 g/m ² or less, 142 g/m ² or less, or 145 g/m ² or less. When the basis weight of the sheet for the aerosol product is within the above-mentioned range, the sheet may have excellent processability, durability, and mechanical strength.

According to one embodiment of the present invention, the sheet for an aerosol product may have a contact angle with respect to water of 70° to 130°, 80° to 125°, 90° to 120°, 105° to 115°, 70° to 120°, 75° to 110°, 100° to 130°, or 100° to 120°. The sheet for an aerosol product having a contact angle with respect to water satisfying the above-described range may have excellent processability and storage stability. The contact angle with respect to water of the sheet may be measured using a method and device used in the art. For example, the contact angle of the sheet may be measured under conditions of 23°C and 50 relative humidity% (RH%) using a contact angle measurement device (equipment name: KRUSS DSA100).

Aerosol products and aerosol generating devices

According to one embodiment of the present invention, an aerosol product is provided, comprising a first part, a second part disposed on one side of the first part, a third part disposed on one side of the second part, and a fourth part disposed on one side of the third part, wherein the second part comprises a sheet for the aerosol product.

An aerosol product according to one embodiment of the present invention can provide excellent stability and improved smoking properties by including the sheet for the aerosol product.

Figure 1 is a perspective view showing an aerosol product according to one embodiment of the present invention.

Referring to FIG. 1, the aerosol product (100) includes first to fourth portions (seg1, seg2, seg3, seg4). Specifically, the first to fourth portions (seg1, seg2, seg3, seg4) may be arranged in parallel in the longitudinal direction (L) of the aerosol product (100). More specifically, the second portion (seg2) may be interposed between the first portion (seg1) and the third portion (seg3), and the third portion (seg3) may be interposed between the second portion (seg2) and the fourth portion (seg4). For example, the thickness direction (T) may be a direction intersecting the longitudinal direction (L) of the aerosol product (100).

Figure 2 is a schematic diagram showing an aerosol generating device according to one embodiment of the present invention.

Referring to FIG. 2, the aerosol generator (300) may include a battery (310), a control unit (320), and a heater (330). For example, the aerosol generator (300) may further include other general or typical components in addition to the illustrated components. Specifically, the aerosol generator (300) may include a housing forming the exterior of the aerosol generator; a sensor including at least one of a temperature sensor, a puff sensor, an insertion detection sensor, and an acceleration sensor; an output module (e.g., a motor, a display) for outputting the status of the device; an input module (e.g., a button) for receiving a user's input (e.g., turning the device on/off, etc.), etc.

According to one embodiment of the present invention, the battery (310) can supply power to operate components of the aerosol generating device. Specifically, the battery (310) can supply power to at least one of the control unit (320), heater (330), and sensor, which will be described later. For example, the battery (310) can also supply power to an induction coil.

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

According to one embodiment of the present invention, smoke and/or aerosol can be generated by heating a part of a first part (SEG1) and a part of a second part (SEG2) of an aerosol product (100) inserted into a receiving space. Some embodiments of the aerosol product (100) inserted into the receiving space can generate smoke and/or aerosol by being heated by a heater (330). The generated smoke and/or aerosol can be inhaled through a user's mouth end. For example, a part of the heated first part (SEG1) and a part of the second part (SEG2) can be directly connected.

According to one embodiment of the present invention, the heater (330) may be a resistive heater. Specifically, the heater (330) may include a conductive track, and the heater (330) may be heated as current flows through the conductive track. Specifically, the heater (330) may be electrically connected to the battery (310) to receive current and directly generate heat.

According to one embodiment of the present invention, when the aerosol product sheet (10) is included in the second portion (SEG2), the aerosol product sheet (10) may be a single or multiple sub-sheets crimped. Here, "crimping" may include one or more structures selected from the group consisting of a positive structure, a negative structure, and a perforated structure, and specifically may include a structure in which a positive structure and a negative structure are combined, and more specifically may mean a structure having multiple wrinkles.

According to one embodiment of the present invention, a plurality of wrinkles in the aerosol product sheet (10) included in the second portion (SEG2) may extend in parallel along the longitudinal axis of the aerosol product. By extending the plurality of wrinkles in parallel along the longitudinal axis of the aerosol product, a desired flow of aerosol generated as the aerosol product sheet is heated can be provided, thereby implementing an appropriate level of suction resistance.

According to one embodiment of the present invention, the second portion (SEG2) may not include a tobacco material. Since the second portion (SEG2) does not include a tobacco material, the active substance can be effectively delivered to the user without the tobacco material, thereby further improving taste and satisfaction. Specifically, tobacco materials such as leaf tobacco have a unique flavor of leaf tobacco, which causes a problem of an off-flavor to the user, and as the leaf tobacco is heated, other components other than the active substance (nicotine or nicotine salt) are delivered to the user's mouth. By excluding the tobacco material from the second portion, both the problem of an off-flavor and the problem of delivery of other components can be solved.

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 a collection (tow) of continuous filaments made of cellulose acetate. For example, the first filter element may include a hollow portion formed long along the longitudinal direction of the aerosol product (100). Here, the hollow portion may penetrate the first filter element. Here, the cross-sectional shape of the hollow portion is not particularly limited and may be specifically Y-shaped, X-shaped, or circular.

According to one embodiment of the present invention, the first filter element may include a first sub-aerosol-forming material that is the same as or different from the aerosol-forming material included in the sheet for aerosol products described above. For example, the first sub-aerosol-forming material may be impregnated into the first filter element. The atomization generated by heating the first sub-aerosol-forming material can effectively transfer the active material, such as nicotine or a nicotine salt, generated in the sheet for aerosol products included in the second portion (SEG2) in the downstream direction.

According to one embodiment of the present invention, the third portion (SEG3) may include a second filter element. For example, the third portion (SEG3) may perform a filtering function on aerosol transported from the front end of the aerosol product by including the second filter element. In some examples, the second filter element is not particularly limited and may be a filter commonly used in the relevant technical field. Specifically, the second filter element may be a cylindrical tube including a hollow structure.

According to one embodiment of the present invention, the fourth section (SEG4) may include a third filter element that further filters the aerosol received from the third section (SEG3). In some examples, the third filter element is not particularly limited and may be a filter commonly used in the relevant technical field. Specifically, the third filter element may be an aggregate (tow) of continuous filaments made of cellulose acetate.

Figure 3 is a schematic diagram illustrating an aerosol generating device according to another embodiment of the present invention. Descriptions that overlap with those in Figures 1 and 2 are briefly explained or omitted.

Referring to FIG. 3, an aerosol generating device (300) according to an embodiment of the present invention may further include a cartridge (340) containing a second sub-aerosol forming material having any one of a liquid state, a solid state, a gaseous state, or a gel state therein. For example, the second sub-aerosol forming material may include a liquid composition. Specifically, the liquid composition may include the aerosol forming material described above as a liquid containing a non-tobacco material.

For example, the second sub-aerosol forming material included in the cartridge (340) can be heated to generate an aerosol. The generated aerosol can be transferred to the first portion (SEG1) of the aerosol product (100) through the airflow channel, thereby promoting the transfer of nicotine or a nicotine salt released from the sheet (10) for the aerosol product included in the second portion (SEG2) in a downstream direction.

According to one embodiment of the present invention, the first part (SEG1) may include a fourth filter element to filter some components of the aerosol supplied from the cartridge (340). In addition, the first part (SEG1) may recognize the aerosol product (100) by including aluminum foil as a filter paper. For example, the fourth filter element may include a tube filter commonly used in the relevant technical field.

According to one embodiment of the present invention, the second part (SEG2) may include the aerosol product sheet (10) described above. By including the aerosol product sheet, the second part (SEG2) can reduce the transfer of aerosol containing components other than the active substance, and can also realize an aerosol product that is free of the characteristic odor and odor of tobacco.

According to one embodiment of the present invention, the content of the sheet for aerosol product per length of the second portion (SEG2) may 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 controlling the content of the sheet for aerosol product within the above-mentioned range, the active material can be sufficiently transferred to the mouth end, thereby further improving the taste performance and satisfaction.

According to one embodiment of the present invention, the second portion (SEG2) may not include a tobacco material. Since the second portion (SEG2) does not include a tobacco material, the active substance can be effectively delivered to the user without the tobacco material, thereby further improving taste and satisfaction. Specifically, tobacco materials such as leaf tobacco have a unique flavor of leaf tobacco, which causes a problem of an off-flavor to the user, and as the leaf tobacco is heated, other components other than the active substance (nicotine or nicotine salt) are delivered to the user's mouth. According to one embodiment of the present invention, by excluding a tobacco material from the second portion, both the problem of an off-flavor and the problem of delivery of other components can be solved.

For example, the heater (330) can heat both the first part (SEG1) and the second part (SEG2).

For example, the description of the wrinkled structure of the sheet (10) for the aerosol product may be the same as the description described above in FIG. 2.

Fig. 4 is a cross-sectional view showing a modified example of the sheet for aerosol products illustrated in Figs. 2 and 3. Specifically, the sheet for aerosol products illustrated in Fig. 4 is a cross-sectional view of the sheet for aerosol products cut along the longitudinal (L) axis of the aerosol product (100). Alternatively, the sheet for aerosol products illustrated in Figs. 2 and 3 may be modified into the sheet for aerosol products illustrated in Fig. 4.

Referring to FIG. 4, according to one embodiment of the present invention, the aerosol product sheet (10) may be a laminate in which two or more sub-sheets (10a) are laminated. For example, the sub-sheet may be manufactured by cutting a single aerosol product sheet.

For example, the total number of the above sub sheets (10a) is not particularly limited, but may be specifically 50 or more and 200 or less.

According to one embodiment of the present invention, at least one of the two or more sub-sheets (10a) may include a crimped structure, and specifically, all of the sub-sheets may include a crimped structure. According to one embodiment of the present invention, since all of the sub-sheets include a crimped structure, the aerosol and nicotine or nicotine salt generated from the sheet (10) for the aerosol product may be more effectively transferred.

For example, the thickness of the sub-sheet (10a) is not particularly limited, but may be specifically 50 ㎛ or more and 300 ㎛ or less, 100 ㎛ or more and 270 ㎛ or less, 150 ㎛ or more and 250 ㎛ or less, 50 ㎛ or more and 250 ㎛ or less, or 150 ㎛ or more and 300 ㎛ or less. At this time, the thickness direction (T) of the sub-sheet (10a) may be a direction intersecting the longitudinal direction (L) of the aerosol product (100), and specifically, may be a direction perpendicular to the longitudinal direction (L) of the aerosol product (100).

Hereinafter, the present invention will be described in detail using examples. However, the examples according to the present invention may be modified in various ways, and the scope of the present invention is not limited to the examples described below. The examples in this specification are provided to more fully explain the present invention to those of ordinary skill in the art.

ingredient

To manufacture the active ingredient, nicotine and citric acid, an organic acid, were prepared. Glycerin was prepared as an aerosol-forming material, microcrystalline cellulose (MCC) with an average particle diameter (D ₅₀ ) of approximately 65 μm was prepared as a support, pulp (CAS No. 65996-61-4) was prepared as a filler, and cocoa extract and menthol were prepared as additives and flavoring agents, respectively.

As a first moisture regulator, a compound in which R ₁ is a hydroxy group and R ₂₁ to R ₂₃ are ethyl groups in the chemical formula 1-1 was prepared. As a second moisture regulator, a compound in which R ₃₁ and R ₃₂ are n-heptyl groups and R ₃₃ is n-nonyl groups in the chemical formula 1-2 was prepared. Myristic acid was prepared as a third moisture regulator.

Carboxymethyl cellulose (Mw: 30,000 g/mol) was prepared as a binder, and maltodextrin with a DE value of approximately 1 was prepared as a bulking agent.

Examples and Comparative Examples

Manufacturing of sheets for aerosol products

After preparing a sheet-forming composition for an aerosol product including a sheet-forming material having the composition shown in Table 1 below and a solvent (water), the composition was dried under the drying conditions shown in Table 2 below to prepare a sheet for an aerosol product having the composition shown in Table 2 below. At this time, the weight ratio of the sheet-forming material and water was 1:4.

At this time, the content of the composition described in Table 1 below is a relative content (unit: parts by weight) with respect to 100 parts by weight of the sheet-forming material, and the content of the composition described in Table 2 below is a relative content (unit: parts by weight) with respect to 100 parts by weight of the sheet for the aerosol product.

division Example 1 Example 2 Comparative Example 1 Comparative Example 2 Comparative Example 3 nicotine 1 1 1 1 1 organic acids 1 1 1 1 1 glycerin 30 30 30 42 15 MCC 45 45 45 39 51 pulp 6 6 6 6 6 First moisture regulator 1.5 - - 0.5 10 Second moisture regulator - 1.5 - - - Third moisture regulator - - 1.5 - - bookbinder 5 5 5 5 5 dextrin 10 10 10 5 10.5 extract 0.25 0.25 0.25 0.25 0.25 flavoring agent 0.25 0.25 0.25 0.25 0.25 Total sum 100 100 100 100 100

division Example 1 Example 2 Comparative Example 1 Comparative Example 2 Comparative Example 3 Drying temperature 105 ℃ Drying time 10 minutes nicotine 0.97 0.96 0.96 0.94 0.98 organic acids 0.97 0.96 0.96 0.94 0.98 glycerin 29.12 28.93 28.82 39.66 14.70 MCC 43.67 43.39 43.24 36.83 49.97 pulp 5.82 5.79 5.76 5.67 5.88 First moisture regulator 1.46 - - 0.47 9.80 Second moisture regulator - 1.45 - - - Third moisture regulator - - 1.44 - - bookbinder 4.85 4.82 4.81 4.73 4.90 dextrin 9.71 9.64 9.61 4.72 10.29 extract 0.24 0.24 0.24 0.24 0.24 flavoring agent 0.24 0.24 0.24 0.24 0.24 moisture 2.95 3.58 3.92 5.56 2.02 Total sum 100 100 100 100 100

Manufacture of aerosol products

Parts 1 to 4 were formed sequentially along the longitudinal direction of the aerosol product.

Manufacturing of Part 1:

A first portion (length: about 10 mm) was prepared by impregnating glycerin as a moisturizer into a paper filter including a paper sheet having a basis weight of about 26.5 g/m ² and a thickness of 48 ㎛.

Manufacturing of Part 2:

Each of the aerosol product sheets (thickness: 200 ㎛, width: 1.0 mm, length: 10 mm) manufactured above was crimped using a crimping semi-finished product manufacturing machine (equipment name: HAUNI KDF-5 CU Cigarette Filter Making Machine). Each of the crimped aerosol product sheets was filled into the interior of a second part arranged on one side of the first part to manufacture a second part (length: approximately 12 mm). At this time, the content of the aerosol product sheet manufactured above was adjusted to 230 mg/12 mm per length of the second part.

Manufacturing of Part 3:

A tube filter having a hollow structure was prepared in a third part (length: approximately 12 mm) placed on one side of the second part.

Manufacturing of Part 4:

A cellulose acetate filter was prepared in the fourth part (length: approximately 14 mm) placed on one side of the third part.

Experimental example

Method for measuring moisture content of sheets for aerosol products:

The moisture content of 4 g of the sheet specimens for aerosol products manufactured above was measured using a general-purpose moisture tester (equipment name: Brabender Moisture Tester MT-CA). Specifically, the sheet specimens were dried at 100°C for 15 minutes until the moisture was completely removed, and then the moisture content of the sheet specimens for aerosol products was measured by calculating the change in moisture evaporation. At this time, the experimental conditions were 22.5°C and 40% relative humidity, and the dried sheet specimens were exposed for 24 hours, and then the moisture content was measured.

Measurement of the contact angle of water on the surface of the sheet

After dropping a water droplet on the surface of the sheet manufactured in Examples 1 to 2 and Comparative Examples 1 to 3, the contact angle of the water droplet on the sheet surface was measured using a contact angle measurement device (equipment name: KRUSS DSA100) under conditions of 23°C and 50 relative humidity% (RH%), and the results are shown in Table 3 below.

Sheet processability evaluation

For the sheets manufactured in Examples 1 to 2 and Comparative Examples 1 to 3, if the sheet stuck to the crimping roller using a self-made simple crimping machine, making crimping difficult, it was evaluated as “X”, and if the sheet did not stick to the roll and was cleanly crimped well, it was evaluated as “O”, and the results are shown in Table 3 below.

Sheet storage stability evaluation

For the sheets manufactured in Examples 1 to 2 and Comparative Examples 1 to 3, storage stability was evaluated using the following method, and the results are shown in Table 3 below.

The sheets were placed in a chamber with 50% humidity and 25°C temperature, sealed, and left for 6 months. Afterwards, if cracks or breakage occurred in the sheet with the naked eye, it was evaluated as “X”, and if the sheet was not damaged and its adhesiveness and elongation increased due to moisture absorption, it was evaluated as “O”.

Measurement of tensile strength and elongation of sheets

The tensile strength and elongation of the sheets manufactured in the examples and comparative examples were measured using the method described in the 2014 publication of the international standard ISO 1924/2 entitled “Paper and board - Determination of tensile properties - Part 2: Constant-rate drawing method”, and the results are shown in Table 3 below.

Specifically, the tensile strength of a sheet specimen (thickness: 210 ㎛, width: 15 mm, length: 100 mm) for an aerosol product was measured in the longitudinal direction (MD direction; machine direction) of the sheet using a vertical tensile strength tester (equipment name: Universal Tester Vertical; FRANK-PTI GMBH) in accordance with the ISO 1924/2: 2014 test standard, and the tensile speed of the sheet specimen was set to 20 mm/min.

division Example 1 Example 2 Comparative Example 1 Comparative Example 2 Comparative Example 3 Water contact angle (°) 77 83 31 30 68 Processability O O X X X Storage stability O O X X X Tensile strength (N/m) 2,323 2,157 1,245 850 1,773 Elongation (%) 6.2 5.8 3.5 2.6 3.8

Referring to Table 3 above, it was confirmed that the sheets for aerosol products manufactured in Examples 1 and 2 had excellent processability and storage stability, and also had excellent mechanical properties such as tensile strength and elongation. On the other hand, in the case of Comparative Examples 1 to 3, the processability and storage stability were inferior, and the mechanical properties were also inferior to those of the Examples.

Therefore, it can be seen that the sheet for an aerosol product according to one embodiment of the present invention has excellent processability, stability, and mechanical properties.

[Explanation of symbols]

10: Sheet for aerosol products

100: Aerosol product

SEG1: Part 1

SEG2: Part 2

SEG3: Part 3

SEG4: Part 4

300: Aerosol generator

310: Battery

320: Control Unit

330: Heater

340: Cartridge

L: longitudinal direction

T: thickness direction

Claims (13)

active substance; aerosol forming substances; support; and Sheet for an aerosol product comprising a moisture control agent comprising a compound represented by the following chemical formula 1: [Chemical Formula 1] In the above chemical formula, R ₁ is hydrogen or a hydroxy group, and R ₂ to R ₄ are each independently a carboxyl group (-CO ₂ H); ; or And, R ₁₁ is a straight or branched chain alkyl group having 1 to 3 carbon atoms, and R ₁₂ is a straight or branched chain alkyl group having 3 to 12 carbon atoms. In the first paragraph, The above moisture control agent is a sheet for an aerosol product comprising a compound represented by the following chemical formula 1-1: [Chemical Formula 1-1] In the above chemical formula, R ₁ is a hydroxy group, R ₂₁ to R ₂₃ are each independently hydrogen; or a straight or branched chain alkyl group having 1 to 3 carbon atoms; and at least one of R ₂₁ to R ₂₃ is a straight or branched chain alkyl group having 1 to 3 carbon atoms. In the first paragraph, The above moisture control agent is a sheet for an aerosol product comprising a compound represented by the following chemical formula 1-2: [Chemical Formula 1-2] In the above chemical formula, R ₃₁ to R ₃₃ are each independently a straight or branched chain alkyl group having 3 to 12 carbon atoms. In the first paragraph, An aerosol product sheet, wherein the 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 aerosol product sheet. In the first paragraph, An aerosol product sheet, wherein the content of the aerosol forming material is 5 parts by weight or more and 50 parts by weight or less, based on 100 parts by weight of the aerosol product sheet. In the first paragraph, An aerosol product sheet, wherein the content of the support is 20 parts by weight or more and 80 parts by weight or less, based on 100 parts by weight of the aerosol product sheet. In the first paragraph, An aerosol product sheet, wherein the content of the moisture control agent is 0.1 parts by weight or more and 5 parts by weight or less, based on 100 parts by weight of the aerosol product sheet. In the first paragraph, A sheet for an aerosol product, wherein the weight ratio of the moisture control agent and the aerosol forming material is 1:3 to 1:100. In the first paragraph, A sheet for an aerosol product further comprising a filler and a binder. In paragraph 9, An aerosol product sheet, wherein the content of the filler is 3 parts by weight or more and 8 parts by weight or less, and the 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 aerosol product sheet. In the first paragraph, A sheet for an aerosol product having a contact angle with water of 70° or more and 130° or less. In the first paragraph, A sheet for an aerosol product further comprising an additive comprising at least one of a bulking agent, an emulsifier, a flavoring agent, an extract, and a vitamin component. Part 1; A second part arranged on one side of the first part; a third part arranged on one side of the second part; and A fourth part disposed on one side of the third part; The second part is an aerosol product comprising a sheet for an aerosol product according to claim 1.