Flavoring sheet with enhanced flavor holding amount and flavor retention and smoking article including same

Abstract

To provide a flavoring sheet with enhanced flavor holding amount and flavor retention and to provide a smoking article including the same.SOLUTION: The flavoring sheet may include a hydrocolloid material configured to form a sheet, an emulsifier, and a fat-soluble flavoring. The emulsifier may serve as a cross-link between the water-soluble hydrocolloid material and the fat-soluble flavoring and increase a flavor holding amount and flavor retention of the flavoring sheet. In a smoking article, a flavoring sheet is applied on at least a portion of a smoking material portion, a filter portion, or a wrapper.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present disclosure relates to a flavored sheet having improved flavor retention and flavor retention, and a smoking article including the same. More specifically, the present disclosure relates to a flavored sheet having improved flavor retention and flavor retention for a fat-soluble flavor, a smoking article including such a flavored sheet and having improved flavor release and flavor persistence, and methods for manufacturing the same. [Background technology]

[0002] To satisfy the preferences of smokers, smoking articles (e.g., cigarettes) are flavored in a variety of ways. A typical example of a flavoring method is adding (e.g., spraying) a flavor liquid directly to a smoking material such as shreds or a filter plug. However, these methods have various problems, such as limitations on the amount of flavor liquid that can be added, failure to produce the intended flavor, or a rapid decline in flavor expression during smoking.

[0003] Specifically, when adding liquid fragrance to smoking materials, it is difficult to add a large amount of liquid fragrance because the liquid fragrance and the smoking material may clump together. Also, the high heating temperature (or combustion temperature) during smoking can cause the liquid fragrance to change in quality, which can result in the release of unintended aromas. Next, while the method of adding liquid fragrance to a filter plug allows for the addition of a larger amount of liquid fragrance than the above-mentioned method, there is also a limit to the amount that can be added.

[0004] However, regardless of the method, there is a problem that the added flavor liquid is released rapidly at the beginning of smoking, resulting in a decrease in flavor release towards the end of smoking. In addition, if an excessive amount of flavor liquid is added, the filter plug or the wrapper enclosing the smoking material may become wet and contaminated. Summary of the Invention [Problem to be solved by the invention]

[0005] The technical problem to be solved through some embodiments of the present disclosure is to provide a scented sheet with improved scent retention and scent retention, and a method for manufacturing the same.

[0006] Another technical problem to be solved through some embodiments of the present disclosure is to provide a smoking article with improved aroma development and aroma persistence, and a method for manufacturing the same.

[0007] The technical problems of the present disclosure are not limited to the technical problems mentioned above, and other technical problems not mentioned will be clearly understood by a person skilled in the art of the present disclosure from the following description. [Means for solving the problem]

[0008] In order to solve the above technical problems, the perfume sheet according to some embodiments of the present disclosure may include a hydrocolloid substance forming the sheet, an emulsifier, and a fat-soluble perfume.

[0009] In some embodiments, the scented sheet may contain 0.5 to 10 parts by weight of the emulsifier based on 100 parts by weight of the total.

[0010] In some embodiments, the fragrance sheet may contain 10 to 40 parts by weight of the fat-soluble fragrance, based on 100 parts by weight of the total.

[0011] In some embodiments, the hydrocolloid material can include a modified cellulosic material.

[0012] In some embodiments, LM-pectin (low methoxyl pectin) can be further included.

[0013] In order to solve the above technical problems, smoking articles according to some embodiments of the present disclosure include a smoking material portion, a filter portion, and a wrapper that wraps at least a portion of the smoking material portion or the filter portion, and a flavoring sheet is applied to at least a portion of the smoking material portion, the filter portion, or the wrapper, and the flavoring sheet can include a hydrocolloid substance, an emulsifier, and a fat-soluble flavoring. [Effects of the Invention]

[0014] According to some embodiments of the present disclosure, a scented sheet may be provided that includes a sheet-forming hydrocolloid material, an emulsifier, and a fat-soluble fragrance. In this case, the emulsifier acts as a bridge between the water-soluble hydrocolloid material and the fat-soluble fragrance, thereby significantly increasing the fragrance retention and fragrance retention of the scented sheet.

[0015] Furthermore, by applying the flavored sheet to the smoking article in various forms, the flavor release and flavor persistence of the smoking article can be improved. For example, the flavor fixed by the sheet-forming agent can be gradually released during smoking, which can significantly improve the flavor persistence of the smoking article.

[0016] The effects of the technical idea of the present disclosure are not limited to the effects mentioned above, and other effects not mentioned will be clearly understood by those skilled in the art from the following description. [Brief explanation of the drawings]

[0017] [Figure 1] 1 is an exemplary flowchart illustrating a method for manufacturing a perfume sheet according to some embodiments of the present disclosure. [Figure 2] 1 is an exemplary drawing that schematically illustrates a smoking article according to some embodiments of the present disclosure. [Figure 3] 1 is an exemplary diagram illustrating a method for manufacturing a wrapping material according to some embodiments of the present disclosure. [Figure 4]10 is an exemplary diagram for explaining a method for manufacturing a wrapping material according to some other embodiments of the present disclosure. [Figure 5] 10 is an exemplary drawing that schematically illustrates smoking articles according to some other embodiments of the present disclosure. [Figure 6] 1 is an exemplary diagram illustrating an application method of a scented sheet according to some embodiments of the present disclosure. [Figure 7] 1 is an exemplary diagram for explaining the processing form of a scented sheet according to some embodiments of the present disclosure. [Figure 8] 1 is an exemplary diagram for explaining the processing form of a scented sheet according to some embodiments of the present disclosure. DETAILED DESCRIPTION OF THE INVENTION

[0018] Hereinafter, preferred embodiments of the present disclosure will be described in detail with reference to the accompanying drawings. Advantages and features of the present disclosure, as well as methods for achieving them, will become apparent from the following detailed description of the embodiments in conjunction with the accompanying drawings. However, the technical idea of the present disclosure is not limited to the following embodiments and may be embodied in various different forms. However, the following embodiments are provided to complete the technical idea of the present disclosure and to fully inform those skilled in the art of the present disclosure of the scope of the present disclosure, and the technical idea of the present disclosure is defined only by the scope of the claims.

[0019] When assigning reference numerals to components in each drawing, it should be noted that the same components are assigned the same numerals as much as possible, even if they are displayed in different drawings. Furthermore, when describing the present disclosure, if it is determined that a detailed description of related known configurations or functions may unnecessarily obscure the gist of the present disclosure, the detailed description thereof will be omitted.

[0020] Unless otherwise defined, all terms (including technical and scientific terms) used herein may be used in a manner commonly understood by a person of ordinary skill in the art to which this disclosure belongs. Furthermore, terms defined in commonly used dictionaries should not be interpreted ideally or excessively unless expressly defined otherwise. The terms used herein are intended to describe the embodiments and are not intended to limit the present disclosure. In this specification, the singular form includes the plural form unless otherwise specified in the context.

[0021] Furthermore, when describing components of the present disclosure, terms such as first, second, A, B, (a), (b), etc. may be used. These terms are merely used to distinguish the component from other components, and do not limit the nature, procedure, or order of the components. When a component is described as being "coupled," "coupled," or "connected" to another component, it should be understood that the component may be directly coupled or connected to the other component, but that other components may also be "coupled," "coupled," or "connected" between the components.

[0022] As used in this disclosure, "comprises" and / or "comprising" means that a referenced component, step, operation and / or element does not exclude the presence or addition of one or more other components, steps, operations and / or elements.

[0023] First, we will clarify some terminology used in various embodiments of this disclosure.

[0024] In the following examples, "smoking article" may refer to any product that can be smoked or any product that can provide a smoking experience, whether based on tobacco, a tobacco derivative, expanded tobacco, reconstituted tobacco, or a tobacco substitute. For example, smoking articles may include smokable products such as cigarettes, cigars, and cigarillos. As another example, smoking articles may include combustible smoking articles and heated smoking articles.

[0025] In the following examples, "smoking material" may refer to a substance that generates smoke and / or aerosol or is used for smoking. For example, smoking material may include tobacco material. Tobacco material may include, for example, tobacco leaf shreds, tobacco stems, or materials processed therefrom. More specific examples of tobacco material include ground tobacco leaves, ground reconstituted tobacco, expanded shreds, expanded midribs, and tabular leaves. However, the term is not limited to these.

[0026] In the following examples, "upstream" or "upstream direction" may refer to a direction away from the smoker's mouth, and "downstream" or "downstream direction" may refer to a direction toward the smoker's mouth. The terms upstream and downstream may be used to describe the relative positions of elements that make up a smoking article. For example, in the smoking article 100 illustrated in FIG. 2, the filter portion 120 is located downstream or downstream of the smokable material portion 110, and the smokable material portion 110 is located upstream or upstream of the filter portion 120.

[0027] In the following examples, "longitudinal direction" may mean the direction corresponding to the longitudinal axis of the smoking article.

[0028] In the following examples, "puff" refers to the inhalation of a user (smoker), which may refer to drawing air through the user's mouth or nose into the user's oral cavity, nasal cavity, or lungs.

[0029] In the following examples, the term "sheet" may refer to a thin layer element having a width and length substantially greater than its thickness. In the art, the term sheet may be used interchangeably with terms such as web and film.

[0030] In the following examples, "flavor sheet" or "flavoring sheet" may refer to a flavor-containing material manufactured in sheet form.

[0031] Various embodiments of the present disclosure will now be described in more detail with reference to the accompanying drawings.

[0032] According to some embodiments of the present disclosure, a flavored sheet with improved flavor retention and flavor retention may be provided. Specifically, when a flavored sheet is manufactured based on a water-soluble (hydrophilic) sheet-forming agent, the addition of an emulsifier can significantly increase the flavor retention and flavor retention of a fat-soluble (lipophilic) flavor. By possessing both water-soluble and fat-soluble structures, the emulsifier can act as a bridge between the water-soluble sheet-forming agent and the fat-soluble flavor, allowing a large amount of the fat-soluble flavor to be firmly fixed to the sheet-forming agent. Therefore, a flavored sheet with significantly improved flavor retention and flavor retention may be manufactured through the emulsifier, and smoking articles with improved flavor release and flavor persistence may also be easily manufactured through such a flavored sheet.

[0033] First, the scented sheet as described above and the method for manufacturing the same will be described with reference to FIG.

[0034] 1 is an exemplary flowchart that schematically illustrates a method for manufacturing a scented sheet according to some embodiments of the present disclosure. However, it goes without saying that this is merely a preferred embodiment for achieving the object of the present disclosure, and some steps may be added or deleted as necessary.

[0035] As shown in FIG. 1, the manufacturing method may begin with step S100 of preparing a sheet composition. Specifically, a hydrocolloid material, an emulsifier, and a fragrance may be mixed with a solvent such as distilled water or ethanol to prepare a liquid (e.g., slurry) sheet composition. Here, the term "liquid" may refer not only to a liquid state but also to a state in which a liquid and a solid are mixed (e.g., a slurry state). The fragrance may be a fat-soluble fragrance, but the scope of the present disclosure is not limited thereto.

[0036] A solvent such as distilled water can be an element for adjusting the viscosity of the slurry sheet composition.

[0037] Next, hydrocolloid materials are materials that coat and fix flavorings and can be used as sheet-forming agents to form sheets. Hydrocolloid materials spontaneously become viscous when they come into contact with solvents such as distilled water or ethanol, so flavoring sheets based on these materials have the advantage of being easily attached to smoking articles without the need for a separate adhesive (see, e.g., Figure 3). In other words, when hydrocolloid materials are used as sheet-forming agents, the process of attaching (placing) flavoring sheets can be simplified and safety issues associated with adhesives can be eliminated.

[0038] Examples of hydrocolloid substances include, but are not limited to, gelatin, agar, gellan gum, pectin, guar gum, xanthan gum, glucomannan, hydroxypropylmethylcellulose (HPMC), methylcellulose (MC), ethylcellulose (EC), carboxymethylcellulose (CMC), starches, and the like.

[0039] Next, the emulsifier allows the highly fat-soluble fragrance to mix well with the water-soluble hydrocolloid material, thereby significantly increasing the fragrance retention and fragrance retention of the fragrance sheet. Examples of emulsifiers include, but are not limited to, natural emulsifiers such as Montanove wax, olive emulsifying wax, lecithin, glyceryl stearate, stearic acid, and lecithin, and synthetic emulsifiers such as monoglycerides, diglycerides, sorbitan, and fatty acid esters.

[0040] Examples of flavoring agents include menthol, nicotine, nicotine salts, tobacco leaf extract, tobacco leaf extract containing nicotine, natural plant flavorings (e.g., cinnamon, sage, herbs, chamomile, dried grass, sweet tea, clove, lavender, cardamom, clove, nutmeg, bergamot, geranium, honey essence, rose oil, lemon, orange, cinnamon, caraway, jasmine, ginger, coriander, vanilla extract, spearmint, peppermint, cassia, coffee, celery, cascarilla, sandalwood, cocoa, ylang-ylang, fennel, anise, licorice, St. John's bread, plum extract, peach extract, etc.), sugars (e.g., glucose, Examples of suitable flavoring agents include fructose, isomerized sugar, caramel, cocoa powder, extract, and the like, esters (e.g., isoamyl acetate, linalyl acetate, isoamyl propionate, linalyl butyrate, and the like), ketones (e.g., menthone, ionone, damascenone, ethyl maltol, and the like), alcohols (e.g., geraniol, linalool, anethole, eugenol, and the like), aldehydes (e.g., vanillin, benzaldehyde, anisaldehyde, and the like), lactones (e.g., γ-undecalactone, γ-nonalactone, and the like), animal flavoring agents (e.g., musk, ambergris, civet, castoreum, and the like), and hydrocarbons (e.g., limonene, pinene, and the like). The flavoring agent may be used as a solid, or may be dissolved or dispersed in a suitable solvent, such as propylene glycol, ethyl alcohol, benzyl alcohol, or triethyl citrate. These fragrances may be used alone or in combination, but the scope of the present disclosure is not limited to the examples given above.

[0041] Meanwhile, in some embodiments, the sheet composition may include a modified cellulose material among various hydrocolloid materials. Here, "modified cellulose" refers to cellulose in which specific functional groups have been substituted within the molecular structure. Examples of modified cellulose include, but are not limited to, HPMC, MC, CMC, and EC. For example, HPMC can have grades ranging from about 4 to 40,000 depending on the ratio of hydroxypropyl and methyl (or methoxy) groups substituted and the molecular weight. The viscosity of the modified cellulose can be determined by the grade. More specifically, the physicochemical properties of HPMC are related to the ratio of methoxy groups, the ratio of hydroxypropyl groups, and the molecular weight. According to the United States Pharmacopeia (USP), HPMC types can be classified into HPMC1828, HPMC2208, HPMC2906, HPMC2910, etc., depending on the ratio of methoxy groups and hydroxypropyl groups. Here, the first two numbers refer to the ratio of methoxy groups, and the last two numbers refer to the ratio of hydroxypropyl groups. As a result of the inventors' continuous experiments, it was confirmed that perfumed sheets made from sheet compositions containing modified cellulose have excellent sheet physical properties and fragrance retention.

[0042] In some embodiments, the sheet composition may further include LM-pectin (low methoxyl pectin). LM-pectin is a low-ester pectin or low-methoxyl pectin that has undergone relatively little esterification, and specifically refers to pectin that contains less than about 50% carboxyl groups within its molecular structure. Unlike carrageenan, LM-pectin does not gel when cooled, and therefore reduces the viscosity of the slurry sheet composition (e.g., to about 600 cp to 800 cp), thereby improving workability in the manufacturing process.

[0043] LM-pectin can contain less than about 50%, less than about 40%, less than about 30%, less than about 20%, or less than about 10% of carboxy groups within its molecular structure. The lower the carboxy group content within the molecular structure of the LM-pectin, the lower the viscosity of a slurry containing the LM-pectin can be.

[0044] In some embodiments, the sheet composition may further include a bulking agent. The bulking agent can increase the total mass (i.e., dry matter mass) of components other than distilled water to increase the volume of the produced perfume sheet, and may be a substance that does not affect the original function of the perfume sheet. Specifically, the bulking agent can have properties that increase the volume of the perfume sheet but do not substantially increase the viscosity of the slurry, and at the same time, do not adversely affect the perfume retention function of the perfume sheet. Preferably, the bulking agent may be starches, modified starches, or starch hydrolysates. However, the bulking agent is not limited to these.

[0045] Modified starch includes starch acetate, oxidized starch, hydroxypropyl distarch phosphate, hydroxypropyl starch, distarch phosphate, monostarch phosphate, phosphorylated distarch phosphate, and the like.

[0046] Starch hydrolysate refers to a substance obtained by a process including a step of hydrolyzing starch. The starch hydrolysate may include, for example, a substance obtained by direct hydrolysis of starch (i.e., dextrin) or a substance obtained by hydrolyzing starch after heat treatment (i.e., resistant dextrin). The bulking agent may be, for example, dextrin, more specifically, cyclodextrin.

[0047] The starch hydrolysate may generally be a starch hydrolysate having a DE value within the range of about 2 to about 40, preferably a starch hydrolysate having a DE value within the range of about 2 to about 20. Examples of starch hydrolysates having a DE value within the range of about 2 to about 20 that can be used include Pine Index #100 (Matsutani Chemical Industry Co., Ltd.), Pine Fiber (Matsutani Chemical Industry Co., Ltd.), and TK-16 (Matsutani Chemical Industry Co., Ltd.).

[0048] Here, "DE" is an abbreviation for dextrose equivalent, and the DE value indicates the degree of starch hydrolysis, i.e., the saccharification rate of starch. In this disclosure, the DE value may be a value measured by the Willstatter-Schudel method. The properties of hydrolyzed starch (starch hydrolysate), such as the molecular weight of the starch hydrolysate and the arrangement of sugar molecules constituting the starch hydrolysate, are not constant for each starch hydrolysate molecule but exist with arbitrary distribution or variation. Depending on the distribution or variation of the starch hydrolysate properties or differences in the cut sections, starch hydrolysates can exhibit different physical properties (e.g., DE values) for each molecule. Thus, although starch hydrolysates are a collection of molecules exhibiting different physical properties, the measurement results using the Willstatter-Schudel method (i.e., DE values) are treated as a representative value indicating the degree of starch hydrolysis.

[0049] Preferably, the starch hydrolysate may be selected from the group consisting of dextrin having a DE value of about 2 to about 5, resistant dextrin having a DE value of about 10 to about 15, and mixtures thereof. An example of a dextrin having a DE value of about 2 to about 5 is Pinex #100 (Matsutani Chemical Industry Co., Ltd.). An example of a resistant dextrin having a DE value of about 10 to about 15 is Pine Fiber (Matsutani Chemical Industry Co., Ltd.).

[0050] In some embodiments, the sheet composition may further include a plasticizer. The plasticizer can improve the physical properties of the fragrance sheet by providing it with appropriate flexibility. The plasticizer can include, but is not limited to, at least one of glycerin and propylene glycol.

[0051] In step S200, the prepared sheet composition is applied and dried to prepare a perfume sheet. For example, the perfume sheet can be prepared by applying (e.g., casting) the sheet composition onto a predetermined substrate and drying it.

[0052] The perfume sheet thus prepared may have various composition ratios (content ratios), and the specific composition ratios may vary depending on the blending ratio of the sheet composition and drying conditions.

[0053] In some embodiments, the fragrance sheet may contain about 0.5 to 10 parts by weight of emulsifier, based on 100 parts by weight of the total. It has been confirmed that within this range, the amount and retention of fragrance increases. For example, if the amount of emulsifier is too low, the increase in fragrance amount is minimal, and if the amount is too high, the amount of sheet-forming agent that coats the fragrance and the amount of fragrance are reduced, and the amount of fragrance amount does not increase significantly.

[0054] In some embodiments, the fragrance sheet may contain about 10 to 60 parts by weight or 10 to 40 parts by weight of fragrance, based on a total of 100 parts by weight, and preferably about 20 parts by weight, 22 parts by weight, 24 parts by weight or more, or 26 parts by weight or more of fragrance. It has been confirmed that when an appropriate amount of emulsifier is added, the amount of fat-soluble fragrance retained increases by about 10%, 15%, or 20% or more compared to when no emulsifier is added.

[0055] In some embodiments, the fragrance sheet may contain, based on a total of 100 parts by weight, about 2 to about 15 parts by weight of water, about 25 to about 90 parts by weight of modified cellulose, and about 0.1 to about 60 parts by weight of fragrance. The fragrance sheet may further contain about 0.5 to 10 parts by weight of an emulsifier.

[0056] In some embodiments, the fragrance sheet may contain, based on a total of 100 parts by weight, about 2 to about 15 parts by weight of water, about 1 to about 60 parts by weight of a hydrocolloid substance, about 1 to about 60 parts by weight of LM-pectin, and about 0.1 to about 60 parts by weight of a fragrance. The fragrance sheet may further contain about 0.5 to 10 parts by weight of an emulsifier.

[0057] In some embodiments, the plasticizer may be present in an amount of about 0.1 to about 15 parts by weight, based on 100 parts by weight of the total fragrance sheet. A sheet with appropriate flexibility can be formed within this range. For example, if too little plasticizer is added, the flexibility of the sheet may decrease, making the fragrance sheet more susceptible to breakage during processing. If too much plasticizer is added, the sheet may not be formed properly.

[0058] Up to now, a perfume sheet and a manufacturing method thereof according to several embodiments of the present disclosure have been described with reference to Figure 1. As described above, a perfume sheet with improved fragrance retention and fragrance retention can be easily manufactured by adding an emulsifier that acts as a bridge between the water-soluble hydrocolloid material and the fat-soluble fragrance.

[0059] Hereinafter, a smoking article (eg, 100) having improved flavor development and flavor persistence due to inclusion of the aforementioned flavored sheet will be described in detail with reference to FIG. 2 and subsequent drawings.

[0060] FIG. 2 is an exemplary drawing that schematically illustrates a smoking article 100 according to some embodiments of the present disclosure.

[0061] As shown in Fig. 2, the smoking article 100 may include a filter portion 120, a smoking material portion 110, and a wrapper (130). However, Fig. 2 only illustrates components relevant to the embodiments of the present disclosure. Therefore, a person skilled in the art to which the present disclosure pertains will understand that other general components may be included in addition to the components illustrated in Fig. 2. Furthermore, Fig. 2 only illustrates an example of some smoking articles according to various embodiments of the present disclosure, and it goes without saying that the detailed structure of the smoking article may differ from that illustrated in Fig. 2. Each component of the smoking article 100 will now be described.

[0062] The filter unit 120 can filter smoke and / or aerosols generated by the smoking material unit 110. To this end, the filter unit 120 can include a filter material. Examples of the filter material include cellulose acetate fiber and paper, but the scope of the present disclosure is not limited thereto. The filter unit 120 can further include a wrapper 130 that encases the filter material (plug).

[0063] As shown, the filter portion 120 may be located downstream of the smoking material portion 110 and connected to the downstream end of the smoking material portion 110. For example, the filter portion 120 and the smoking material portion 110 may have a cylindrical (rod) shape, be aligned longitudinally, and be connected by a tipping wrapper. The tipping wrapper may wrap at least a portion of the filter portion 120 and at least a portion of the smoking material portion 110 together to connect the filter portion 120 and the smoking material portion 110. When the filter portion 120 forms the downstream end of the smoking article 100, the filter portion 120 may function as a mouthpiece that comes into contact with the smoker's mouth.

[0064] The filter unit 120 is manufactured in the form of a rod, and may be referred to as a "filter rod 120" in some cases. The filter unit 120 may be manufactured in various forms such as a cylindrical type, a tube type having a hollow inside, a recessed type, and the like.

[0065] The smoking material portion 110 may then contain smoking material that can be burned or heated to generate smoke and / or aerosol. The smoking material portion 110 may further include a wrapper 130 that encases the smoking material.

[0066] As shown, the smokable material portion 110 may be located upstream of the filter portion 120 and connected to the upstream end of the filter portion 120. Smoke and / or aerosol generated in the smokable material portion 110 by puffing may be delivered to the smoker's mouth via the filter portion 120.

[0067] The smokable material portion 110 is also manufactured in the form of a rod, and may therefore also be referred to as a "smokable material rod 110." Alternatively, the smokable material portion 110 may also be referred to as a "medium portion 110."

[0068] Smoking materials can include, for example, tobacco materials. Tobacco materials can include, for example, tobacco leaf shreds, tobacco stems, or materials processed therefrom. More specific examples of tobacco materials include crushed tobacco leaves, crushed reconstituted tobacco, expanded shreds, expanded midribs, and tabular tobacco. Tobacco materials can also be in the form of, but are not limited to, tobacco shreds, tobacco particles, tobacco sheets, tobacco beads, tobacco granules, or tobacco extracts.

[0069] In some embodiments, the smoking material may further include additives such as humectants, flavorings, and / or organic acids. For example, the humectant may include at least one of glycerin, propylene glycol, ethylene glycol, dipropylene glycol, diethylene glycol, triethylene glycol, tetraethylene glycol, and oleyl alcohol. The humectant may maintain an appropriate level of moisture within the tobacco material to soften the inherent flavor and enhance the atomization yield. Flavoring agents may also include, for example, licorice, sucrose, fructose syrup, isosweet, cocoa, lavender, cinnamon, cardamom, celery, fenugreek, cascarilla, sandalwood, bergamot, geranium, honey essence, rose oil, vanilla, lemon oil, orange oil, mint oil, cinnamon, caraway, cognac, jasmine, chamomile, menthol, cinnamon, ylang-ylang, salvia, spearmint, ginger, coriander, clove extract (or clove substance), or coffee.

[0070] Next, the wrapper 130 may refer to something that wraps at least a portion of the smoking material portion 110 and / or the filter portion 120. The wrapper 130 may refer to the individual wrapper for the smoking material portion 110 or the filter portion 120, or may refer to a wrapper that wraps at least a portion of both the smoking material portion 110 and the filter portion 120, such as a tipping wrapper, or may refer collectively to all wrappers used in the smoking article 100. The wrapper 130 may be made of porous or non-porous wrapping paper, although the scope of the present disclosure is not limited thereto. For example, the wrapper 130 may be made of metal foil or a combination of wrapping paper and metal foil.

[0071] According to various embodiments of the present disclosure, as shown in the drawings, a flavored sheet 10 can be applied (disposed) to the smoking material portion 110 and / or the wrapper 130. The flavored sheet 10 applied in this manner can enhance the flavor release and flavor persistence of the smoking article 100 by continuously releasing a flavor during smoking. In other words, unlike when a flavor is added in liquid form, the flavor fixed (coated) by the sheet-forming agent is released gradually and continuously during smoking, effectively solving the problem of excessive flavor release at the beginning of smoking. However, the specific application method may vary.

[0072] In some embodiments, the flavored sheet 10 may be disposed (e.g., attached (overlapped), coated) inside the wrapper 130. For example, the flavored sheet 10 may be disposed inside the wrapper 130 in a form that wraps all or part of the smoking material portion 110. If at least a portion of the wrapper 130 is made of metal foil, the flavored sheet 10 may be disposed inside the metal foil. In this case, the flavor development of the flavored sheet 10 may be further promoted by heat transferred through the metal foil. The process of disposing the flavored sheet 10 inside the wrapper 130 will be described below with reference to FIGS. 3 and 4.

[0073] In some other embodiments, the flavored sheet 10 may constitute at least a part of the wrapper 130. That is, the flavored sheet 10 itself can function as the wrapper 130 of the smoking article 100. In this case, the wrapper 130 may be composed of only the flavored sheet 10, or may be composed of the flavored sheet 10 integrated with wrapping paper. In such cases, the process of placing the flavored sheet 10 on the wrapper 130 (e.g., an adhering (overlapping) process, a coating process) is not necessary, and the manufacturing process of the smoking article 100 can be further simplified.

[0074] In some other embodiments, the flavored sheet 10 may be applied to a portion other than the wrapper 130. For example, the flavored sheet 10 may be mixed in a shredded form with shredded tobacco (e.g., shredded tobacco leaves, shredded tabular leaves, etc.) and then placed in the smoking material portion 110. As another example, the flavored sheet 10 may be layered (attached) to a tobacco sheet (e.g., tobacco material in sheet form such as tabular leaves) and then placed in the smoking material portion 110. As yet another example, the flavored sheet 10 may be rolled or folded and placed in the smoking material portion 110 or in other portions (e.g., inside the cooling section, on the inner wall of the cooling section, etc.), and such examples will be described in more detail below with reference to FIGS. 5 to 8.

[0075] Up to now, smoking articles 100 according to several embodiments of the present disclosure have been described with reference to Fig. 2. As described above, the flavored sheet 10 can be applied to the smoking article 100 in various forms to improve the flavor expression and flavor persistence of the smoking article 100. For example, the flavor fixed by the sheet-forming agent can be gradually released during smoking, thereby significantly improving the flavor persistence of the smoking article 100.

[0076] A method for manufacturing a wrapping material to which the perfume sheet 10 is applied will be described below with reference to FIGS.

[0077] The wrapping material according to the embodiment can be manufactured using the scent sheet 10 or a sheet composition that is a raw material for the scent sheet 10. However, the specific manufacturing method may vary depending on the embodiment.

[0078] In some embodiments, a wrapping material may be manufactured by overlapping the perfume sheet 10 and wrapping paper. For ease of understanding, this embodiment will be described with reference to FIG.

[0079] As shown in FIG. 3, wrapping paper is supplied through a first bobbin 410 around which wrapping paper is wound, and simultaneously, a flavoring sheet 10 is supplied through a second bobbin 420 around which the flavoring sheet 10 is wound. The supplied wrapping paper and the flavoring sheet 10 can then be overlapped by a press roller 440. At this time, if the flavoring sheet 10 is made of a hydrocolloid material, a predetermined liquid can be sprayed through a sprayer 430. The sprayed liquid makes the flavoring sheet 10 sticky, allowing the flavoring sheet 10 to be tightly overlapped with the wrapping paper without the need for a separate adhesive. Accordingly, a wrapping material 450 for a smoking article can be easily manufactured. The manufactured wrapping material 450 can be cut to an appropriate size and used as a wrapper for a smoking article.

[0080] The predetermined liquid may be, for example, water (distilled water), ethanol, etc., but is not limited thereto.

[0081] In addition, the thickness of the scented sheet 10 supplied through the second bobbin 420 may be about 60 μm to 150 μm, preferably about 60 μm to 120 μm. Within this range, the scented sheet 10 can be easily superimposed on the wrapping paper, the problem of the wrapping material 450 becoming excessively thick can be prevented, and appropriate flexibility can be ensured.

[0082] In some other embodiments, the wrapping material may be manufactured through a coating process in which a liquid sheet composition is applied to wrapping paper and dried. For ease of understanding, this embodiment will be described with reference to FIG.

[0083] As shown in Fig. 4, wrapping paper may be supplied through a bobbin 510 around which the wrapping paper is wound. Then, a liquid (e.g., slurry) sheet composition 530 may be applied onto the supplied wrapping paper through an applicator (520; e.g., a nozzle). The sheet composition 530 may be dried naturally during the wrapping paper transfer process 540 or in a separate drying facility. As a result, the sheet composition 530 may be appropriately coated onto the wrapping paper to produce a wrapping material 550. The produced wrapping material 550 may be cut to an appropriate size and used as a wrapper for a smoking article.

[0084] In this case, the thickness of the coated sheet composition 530 may be about 100 μm or less, and preferably about 90 μm, 80 μm, 70 μm, 60 μm, or 50 μm or less. Within this range, the wrapping material 550 can be prevented from becoming excessively thick and appropriate flexibility can be ensured.

[0085] As described above, once the wrapping material 450, 550 is manufactured, a smoking article (e.g., 100) with improved aroma persistence and aroma expression can be manufactured by cutting the manufactured wrapping material 450, 550 to an appropriate size and wrapping at least a portion of the smoking article (e.g., 100) with the cut wrapping material 450, 550. For example, a smoking article (e.g., 100) can be manufactured by wrapping at least a portion of a smoking material portion (e.g., 110) with the wrapping material 450, 550.

[0086] So far, a method for manufacturing a wrapping material according to several embodiments of the present disclosure has been described with reference to Figures 3 and 4. According to the above-described method, a wrapping material for a smoking article (e.g., 100) can be easily manufactured by overlapping the wrapping paper of the smoking article (e.g., 100) with the flavored sheet 10 or by applying the composition of the flavored sheet 10 onto the wrapping paper. Furthermore, using the manufactured wrapping material has the advantage that the smoking article (e.g., 100) can be manufactured using existing manufacturing equipment (i.e., equipment for wrapping smoking articles).

[0087] Hereinafter, application methods of smoking articles 200 and flavored sheets 10 according to other embodiments of the present disclosure will be described with reference to Figure 5 and subsequent drawings. However, for the sake of clarity of the present disclosure, descriptions of content that overlaps with the smoking article 100 described above will be omitted.

[0088] FIG. 5 is an exemplary diagram showing a smoking article 200 according to some other embodiments of the present disclosure.

[0089] As shown in FIG. 5, the smoking article 200 may include a smoking material portion 210 and a filter portion 220, and the filter portion 220 may include a plurality of segments 221, 222.

[0090] The smoking material portion 210 may correspond to the smoking material portion 110 described above, and therefore, a description thereof will be omitted.

[0091] Next, the filter section 220 may be composed of a first segment 221 and a second segment 222. Of course, the filter section 220 may further include a third segment (not shown).

[0092] The first segment 221 may perform a cooling function for the smoke and / or aerosol generated in the smokable material portion 210. Therefore, the first segment 221 may also be referred to as a "cooling segment 221" or a "cooling portion 221" in some cases.

[0093] The first segment 221 may be manufactured in various forms. For example, the first segment 221 may be a cylindrical paper tube made of paper and having a hollow center. As another example, the first segment 221 may be made of a polymeric material or a biodegradable polymeric material. For example, the first segment 221 may be made of polylactic acid (PLA) fiber, but is not limited to this. As another example, the first segment 221 may be made of a cellulose acetate filter having a plurality of holes. As yet another example, the first segment 221 may be a tube filter having a hollow center. For example, the first segment 221 may be a cellulose acetate filter having a hollow center. However, the first segment 221 is not limited thereto, and may be manufactured in a form different from the illustrated example as long as it can perform a cooling function.

[0094] In some embodiments, the perfume sheet 10 may be applied to the first segment 221. Specifically, the perfume sheet 10 may be disposed inside (e.g., hollow, cavity, etc.) or on the inner wall of the first segment 221. However, the specific processing form and / or application method may vary.

[0095] In some examples, as shown in FIG. 6, the scented sheet 10 may be rolled or folded in an irregular pattern and applied to the first segment 221 (see 10-1). Alternatively, the scented sheet 10 may be rolled in a spiral shape (see 10-2) or a concentric circle shape (see 10-3) and applied to the first segment 221. Alternatively, the scented sheet 10 may be folded multiple times (e.g., folded to ensure an airflow path in the lengthwise direction) and applied to the first segment 221 (see 10-4). When the scented sheet 10 is applied to the first segment 221 in the illustrated shape, an airflow path in the lengthwise direction is ensured, ensuring smooth airflow and appropriate suction resistance. Furthermore, the contact area between the scented sheet 10 and the high-temperature airflow is increased, thereby improving the cooling performance of the first segment 221.

[0096] In some cases, the scented sheet 10 may be attached to the inner wall of the first segment 221. In this case, the scented sheet 10 does not have any negative effect on the airflow within the first segment 221, so smooth airflow and appropriate suction resistance can be more effectively ensured.

[0097] Meanwhile, in the above-mentioned examples, the scented sheet 10 may be a sheet processed through a predetermined process.

[0098] For example, as shown in FIG. 7, the flavored sheet 10 may be processed to be wrinkled or folded in the length direction (i.e., MD direction) of the smoking article 200. For example, the flavored sheet 10 may be wrinkled or folded by at least one of a crimping process, a pleating process, a folding process, and a gathering process. Specifically, the crimping process is a process in which wrinkles are imparted to the surface of a sheet by the roller pressure and speed difference of a crimping device, and is divided into a wet process and a dry process. The wet process refers to a process in which the base paper is wetted with water, softened, crimped, and then subjected to a re-drying process. The dry process refers to a drying process using two dryers with different temperatures. Those skilled in the art are already familiar with the pleating, folding, and gathering processes, and therefore further explanations thereof will be omitted. According to this embodiment, a number of channels can be formed in the length direction of the scented sheet 10 through at least one of the illustrated processes, and smooth airflow and appropriate suction resistance can be ensured through the formed channels. In addition, the contact area between the scented sheet 10 and the high-temperature airflow can be increased, thereby improving cooling performance.

[0099] As another example, as shown in FIG. 8, the scented sheet 10 may be processed to have a plurality of holes 101 formed therein. For example, the plurality of holes 101 may be formed in the scented sheet 10 through a punching process. In this case, the diameter of the holes 101 may be approximately 0.05 mm to 5 mm, preferably approximately 0.1 mm to 3 mm, approximately 0.2 mm to 2.5 mm, approximately 0.3 mm to 2.1 mm, or approximately 0.4 mm to 1.8 mm. Within these numerical ranges, smooth airflow and appropriate suction resistance may be ensured. Furthermore, the contact area between the scented sheet 10 and the high-temperature airflow may be maximized, significantly improving the cooling performance of the first segment 221.

[0100] Meanwhile, in some embodiments, the sheet-forming material constituting the flavored sheet 10 may be a cellulose-based material. Examples of cellulose-based materials include, but are not limited to, HPMC, MC, CMC, and agar. Such cellulose-based materials have the property of absorbing hot air well through a phase change when in contact with a high-temperature airflow, thereby further improving the cooling performance of the first segment 221. In addition, the phase change allows the coated flavoring to be slowly released, thereby significantly improving the flavor persistence of the smoking article 200.

[0101] In some embodiments, the flavoring contained in the flavored sheet 10 may have a melting point of approximately 80°C or less. In this case, when the flavored sheet 10 comes into contact with an airflow of 80°C or more, the flavoring undergoes a phase change and further absorbs the hot air, thereby further improving the cooling performance of the first segment 221. Considering that the temperature of heated smoke / aerosol is generally 80°C or more, the use of such flavorings can effectively improve the cooling performance of most heated smoking articles. Furthermore, the flavoring can be easily vaporized after the phase change, thereby improving the flavor expression of the smoking article 200. Examples of flavorings having a melting point of approximately 80°C or less include, but are not limited to, menthol.

[0102] Referring again to FIG.

[0103] Second segment 222 can then perform a filtering function on the smoke and / or aerosols that have passed through first segment 221. Therefore, second segment 222 may sometimes be referred to as a "filter segment 222" or a "filter portion 222." Alternatively, since second segment 222 is located in the mouthpiece portion, it may also be referred to as a "mouthpiece segment 222" or a "mouthpiece portion 222."

[0104] In some embodiments, the second segment 222 may include at least one capsule 240. The capsule 240 may perform a function of generating a flavor, smoke, and / or aerosol. For example, the capsule 240 may have a structure in which a liquid containing a flavoring agent is enclosed in a film. The capsule 240 may have a spherical or cylindrical shape, but is not limited thereto.

[0105] Next, the wrapper 230 may correspond to the wrapper 130 described above. Therefore, a description thereof will be omitted. As described above, the flavored sheet 10 may also be applied to the wrapper 230. By doing so, the flavor development and flavor persistence of the smoking article 200 may be further improved.

[0106] 5, the smoking article 200 may further include a plug (not shown) disposed at its end. For example, the plug may be disposed at the upstream end of the smoking article 200 and function to appropriately adjust the overall length of the smoking article 200. Furthermore, when the smoking article 200 is inserted into an aerosol-generating device (not shown), the plug may function to adjust the smoking material portion 210 so that it is positioned appropriately within the aerosol-generating device.

[0107] 5 to 8, smoking articles 200 according to other embodiments of the present disclosure have been described. As described above, by applying the flavored sheet 10 to the smoking article 200 in various forms, the flavored sheet 10 can improve the flavor development and flavor persistence of the smoking article 200. In addition, by applying the flavored sheet 10 to the cooling segment 221 of the smoking article 200, the cooling performance of the smoking article 200 can also be improved.

[0108] Although the embodiments of the present disclosure have been described above with reference to the accompanying drawings, those skilled in the art will understand that the present disclosure can be embodied in other specific forms without changing the technical spirit or essential features thereof. Therefore, the above-described embodiments should be understood to be illustrative in all respects and not limiting. The scope of protection of the present disclosure should be interpreted by the following claims, and all technical ideas within the scope equivalent thereto should be interpreted as being within the scope of rights of the technical ideas defined by the present disclosure.

Claims

1. a sheet-forming hydrocolloid material; an emulsifier; and A fragrance sheet containing a fat-soluble fragrance.

2. The fragrance sheet is Based on 100 parts by weight of the total The perfume sheet according to claim 1, comprising 0.5 to 10 parts by weight of the emulsifier.

3. The fragrance sheet is Based on 100 parts by weight of the total 2. The fragrance sheet according to claim 1, comprising 10 to 40 parts by weight of the fat-soluble fragrance.

4. 10. The perfumed sheet of claim 1, wherein the hydrocolloid material comprises a modified cellulosic material.

5. The modified cellulosic material comprises:

5. The perfumed sheet according to claim 4, comprising at least one substance selected from the group consisting of hydroxypropylmethylcellulose, methylcellulose, carboxymethylcellulose, and ethylcellulose.

6. The perfume sheet according to claim 1, further comprising LM-pectin (low methoxyl pectin).

7. The LM-pectin is Contains less than 50% carboxy groups, The fragrance sheet according to claim 6, which does not gel when left to cool.

8. Smoking Substances Section; a filter section; and a wrapper that encases at least a portion of the smoking material portion or the filter portion; a flavoring sheet is disposed on at least a portion of the smoking material portion, the filter portion, or the wrapper; The smoking article, wherein the flavoring sheet comprises a hydrocolloid substance, an emulsifier, and a fat-soluble flavoring.

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