Fragrance sheet with enhanced fragrance retention and smoking article containing the same

Abstract

A flavored sheet having improved flavor retention and flavor retention and a smoking article including the same are provided. The flavored sheet according to some embodiments of the present disclosure may include a hydrocolloid material forming the sheet, an emulsifier, and a fat-soluble flavoring. The emulsifier can enhance the flavor retention and flavor retention of the flavored sheet by fulfilling the role of bridging between the water-soluble hydrocolloid material and the fat-soluble flavoring.

Description

Technical Field

[0001] The present disclosure relates to a fragrance sheet with enhanced fragrance retention and fragrance retention property, and a smoking article containing the same. More specifically, it relates to a fragrance sheet with enhanced retention and retention property for a fat-soluble fragrance, a smoking article with enhanced fragrance expression property and fragrance persistence by including such a fragrance sheet, and methods for manufacturing these.

Background Art

[0002] In order to satisfy the preferences of smokers, smoking articles (e.g., cigarettes) are flavored in various ways. Examples of typical flavoring methods include directly adding (e.g., spraying) a perfume liquid to a smoking substance such as flakes or a filter plug. However, the exemplified methods have various problems such as limitations in the amount of perfume liquid added, the intended fragrance not being expressed, or a sharp drop in fragrance expression during smoking.

[0003] Specifically, in the method of adding a perfume liquid to a smoking substance, it is difficult to add a large amount of perfume liquid because the perfume liquid can aggregate with the smoking substance. Also, due to the perfume liquid being deteriorated by a high heating temperature (or combustion temperature) during smoking, an unintended fragrance may be expressed. Next, in the method of adding a perfume liquid to a filter plug, although a larger amount of perfume liquid can be added compared to the aforementioned method, there is also a limit to the amount added.

[0004] On the other hand, in any method, there is a problem that the fragrance expression property drops as the smoking progresses because the added perfume liquid is rapidly expressed in the early stage of smoking. When an excessive amount of perfume liquid is added, problems such as the filter plug or the wrapper wrapping the smoking substance getting wet and contaminated may occur.

Summary of the Invention

Problems to be Solved by the Invention

[0005] The technical problem to be solved through several embodiments of the present disclosure is to provide a fragrance sheet with enhanced fragrance retention and fragrance holding property, and a method for manufacturing the same.

[0006] Another technical problem to be solved through several embodiments of the present disclosure is to provide a smoking article with enhanced fragrance expression and fragrance 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 those of ordinary skill in the technical field of the present disclosure from the following description.

Means for Solving the Problems

[0008] The fragrance sheet according to several embodiments of the present disclosure for solving the above technical problems may include a hydrocolloid substance forming the sheet, an emulsifier, and a fat-soluble fragrance.

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

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

[0011] In some embodiments, the hydrocolloid substance may include a modified cellulose substance.

[0012] In some embodiments, it may further include LM-pectin (low methoxyl pectin).

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

Advantages of the Invention

[0014] According to some embodiments of the present disclosure described above, a flavor sheet including a hydrocolloid substance, an emulsifier, and a fat-soluble flavor that forms a sheet can be provided. At this time, the emulsifier can greatly enhance the aroma retention and aroma retention of the flavor sheet by playing a role in cross-linking between the water-soluble hydrocolloid substance and the fat-soluble flavor.

[0015] In addition, by applying the flavor sheet to the smoking article in various forms, the aroma expressiveness and aroma persistence of the smoking article can be improved. For example, the aroma persistence of the smoking article can be greatly improved by gradually releasing the flavor fixed by the sheet former during smoking.

[0016] The effects according to 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 of ordinary skill in the art from the following description.

Brief Description of the Drawings

[0017]

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Figure 2

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DETAILED DESCRIPTION OF THE INVENTION

[0018] Hereinafter, preferred embodiments of the present disclosure will be described in detail with reference to the accompanying drawings. The advantages and features of the present disclosure, and the methods for achieving them, will become clear by referring to the embodiments described in detail hereinafter together with the accompanying drawings. However, the technical idea of the present disclosure is not limited to the following embodiments and can be embodied in various different forms. However, the following embodiments make the technical idea of the present disclosure complete, and are provided to fully inform those having ordinary knowledge in the technical field to which the present disclosure belongs of the scope of the present disclosure. The technical idea of the present disclosure is only defined by the scope of the claims.

[0019] When adding reference numerals to the components of each drawing, it should be noted that for the same components, as much as possible, the same reference numerals are used even if they are shown on other drawings. In addition, when explaining the present disclosure, if it is determined that a detailed explanation of a related known configuration or function may unnecessarily obscure the gist of the present disclosure, the detailed explanation thereof will be omitted.

[0020] Unless otherwise defined, all terms (including technical and scientific terms) used herein may be used in a sense commonly understood by one of ordinary skill in the art to which this disclosure belongs. Also, terms defined in commonly used dictionaries are not to be interpreted ideally or overly unless clearly specifically defined herein. The terms used herein are for the purpose of describing examples and are not intended to limit the disclosure. In this specification, the singular form also includes the plural form unless specifically stated otherwise in the context.

[0021] Also, when describing the components of the present disclosure, terms such as first, second, A, B, (a), (b), etc. can be used. Such terms are merely for distinguishing the components from other components and do not limit the essence, procedure, or order of the corresponding components. When a component is described as being "connected", "coupled", or "joined" to another component, it should be understood that the component can be directly connected or joined to the other component, or other components can be further "connected", "coupled", or "joined" between each component.

[0022] As used in this disclosure, "comprises" and / or "comprising" do not exclude the presence or addition of one or more other components, steps, operations, and / or elements.

[0023] First, some terms used in various embodiments of the present disclosure will be clarified.

[0024] In the following examples, the term "smoking article" can mean any product that can be smoked or any product that can provide a smoking experience, regardless of whether it is based on tobacco, tobacco derivatives, expanded tobacco, reconstituted tobacco, or tobacco substitutes. For example, smoking articles can include smokable products such as cigarettes, cigars, and cigarillos. As another example, smoking articles can include combustible smoking articles and heat-not-burn smoking articles.

[0025] In the following examples, the term "smoking material" can mean a substance that generates smoke and / or aerosol or is used for smoking. For example, smoking materials can include tobacco substances. Tobacco substances can include, for example, shreds of tobacco leaves, tobacco stems, or substances processed from these. As a more specific example, tobacco substances can include ground tobacco leaves, ground reconstituted tobacco, puffing cuts, expanded midribs, and lamina. However, it is not limited thereto.

[0026] In the following examples, the term "upstream" or "upstream direction" can mean the direction away from the smoker's mouth, and the term "downstream" or "downstream direction" can mean the direction approaching the smoker's mouth. The terms upstream and downstream can be used to describe the relative positions of the components 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 in the downstream direction of the smoking material portion 110, and the smoking material portion 110 is located upstream or in the upstream direction of the filter portion 120.

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

[0028] In the following examples, "puff" means inhalation by a user (smoker), and inhalation may mean a situation where air is drawn into the user's oral cavity, nasal cavity, or lungs through the user's mouth or nose.

[0029] In the following examples, "sheet" may mean a thin-layer element having a width and length substantially larger 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 mean a flavor-containing material manufactured in sheet form.

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

[0032] According to some embodiments of the present disclosure, a flavor sheet with enhanced fragrance retention and fragrance retention properties can be provided. Specifically, when manufacturing a flavor sheet based on a water-soluble (hydrophilic) sheet former, the addition of an emulsifier can significantly enhance the fragrance retention and fragrance retention properties for lipophilic (hydrophobic) flavors. By simultaneously having a water-soluble and a lipophilic structure, the emulsifier can play a role in cross-linking the water-soluble sheet former and the lipophilic flavor, and also enable a large amount of the lipophilic flavor to be well fixed by the sheet former. Therefore, a flavor sheet with significantly enhanced fragrance retention and fragrance retention properties can be manufactured through the emulsifier, and a smoking article with enhanced fragrance expression and fragrance persistence can also be easily manufactured using such a flavor sheet.

[0033] First, with reference to FIG. 1, the flavor sheet and its manufacturing method as described above will be explained.

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

[0035] As shown in FIG. 1, the manufacturing method may start with step S100 of manufacturing a sheet composition. Specifically, a hydrocolloid substance, an emulsifier, and a fragrance may be blended with a solvent such as distilled water or ethanol to produce a liquid (e.g., slurry state) sheet composition. Here, the liquid state may include not only the liquid state but also a state in which a liquid and a solid are mixed (e.g., 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 may be an element for adjusting the viscosity of the slurry-like sheet composition.

[0037] Next, the hydrocolloid substance is a substance that coats and fixes the fragrance and may be a sheet-forming agent for forming a sheet. Since the hydrocolloid substance autonomously becomes viscous when contacted with a solvent such as distilled water or ethanol, a fragrance sheet based on such a substance has the advantage that it can be easily attached to a smoking article without a separate adhesive (see FIG. 3, etc.). In other words, when the hydrocolloid substance is used as a sheet-forming agent, the adhesion (placement) process of the fragrance sheet can be simplified and can be freed from the safety problems caused by adhesives.

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

[0039] Next, the emulsifier can greatly increase the fragrance retention amount and fragrance retention property of the fragrance sheet by allowing a highly fat-soluble fragrance and a water-soluble hydrocolloid substance to be well mixed. Examples of emulsifiers include natural emulsifiers such as montan wax, olive emulsifying wax, lecithin, glyceryl stearate, stearic acid, lecithin, and synthetic emulsifiers such as monoglyceride, diglyceride, sorbitan, fatty acid ester, etc., but are not limited thereto.

[0040] Next, examples of fragrances include menthol, nicotine, nicotine salts, tobacco leaf extracts, tobacco leaf extracts containing nicotine, natural plant fragrances (e.g., cinnamon, sage, herbs, chamomile, withered grass, sweet tea, clove, lavender, cardamom, cloves, 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, centaury, persimmon extract, peach extract, etc.), saccharides (e.g., glucose, fructose, isomerized sugar, caramel, etc.), cocoas (powder, extract, etc.), esters (e.g., isoamyl acetate, linalyl acetate, isoamyl propionate, linalyl butyrate, etc.), ketones (e.g., menthone, ionone, damasconone, 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-derived fragrances (e.g., musk, ambergris, civet, castoreum, etc.), hydrocarbons (e.g., limonene, pinene, etc.). The fragrance may be used as a solid, or may be dissolved or dispersed in a suitable solvent such as propylene glycol, ethyl alcohol, benzyl alcohol, triethyl citrate and used. These fragrances may be used alone or as a mixture. However, the scope of the present disclosure is not limited by the foregoing examples.

[0041] On the one hand, in some embodiments, the sheet composition can include a modified cellulose material among various hydrocolloid materials. Here, "modified cellulose" can mean cellulose in which specific functional groups are 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 in the range of about 4 to 40,000 depending on the ratio of substituted hydroxypropyl groups and methyl groups (or methoxy groups) and the molecular weight. The grade can determine the viscosity of the modified cellulose. 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), the types of HPMC can be classified into HPMC1828, HPMC2208, HPMC2906, HPMC2910, etc. according to the ratio of methoxy groups and hydroxypropyl groups. Here, the first two numbers can mean the ratio of methoxy groups, and the last two numbers can mean the ratio of hydroxypropyl groups. From the continuous experimental results of the present inventors, it was confirmed that the fragrance sheet produced from the sheet composition containing modified cellulose is excellent in sheet physical properties and fragrance retention.

[0042] Also, in some embodiments, the sheet composition may further include LM-pectin (low methoxyl pectin). LM-pectin is low-ester pectin or low-methoxyl pectin with relatively less esterification. Specifically, it can mean pectin in which the carboxyl group is contained in less than about 50% inside the molecular structure. Different from carrageenan, LM-pectin has the property of not gelling when cooled, so the workability of the manufacturing process can be improved by reducing the viscosity of the slurry-like sheet composition (for example, to about 600 cp to 800 cp).

[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 carboxyl groups inside its molecular structure. The lower the carboxyl group content inside the molecular structure of LM-pectin, the lower the viscosity of the slurry containing LM-pectin can be.

[0044] Also, in some embodiments, the sheet composition may further include a bulking agent. The bulking agent can increase the volume of the fragrance sheet produced by increasing the total mass of components other than distilled water (i.e., the dry matter mass), and can be a substance that does not affect the original function of the fragrance sheet. Specifically, the bulking agent can have the property of increasing the volume of the fragrance sheet while not substantially increasing the viscosity of the slurry and not adversely affecting the fragrance retention function of the fragrance sheet. Preferably, the bulking agent may be starches, modified starches, or starch hydrolysates. However, it is not limited thereto.

[0045] Modified starches include acetic acid starch, oxidized starch, diphosphate hydroxypropyl distarch, hydroxypropyl starch, diphosphate starch, monophosphate starch, phosphorylated diphosphate starch, etc.

[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 directly obtained by hydrolyzing starch (i.e., dextrin), or a substance obtained by hydrolyzing starch after heat treatment (i.e., resistant dextrin). The bulking agent can be, for example, dextrin, and more specifically, cyclodextrin.

[0047] The starch hydrolyzate can generally be a starch hydrolyzate having a DE value in the range of about 2 to about 40, preferably a starch hydrolyzate having a DE value in the range of about 2 to about 20. As the starch hydrolyzate having a DE value in the range of about 2 to about 20, for example, Paine Index #100 (Matsutani Chemical Industry Co., Ltd.), Paine Fiber (Matsutani Chemical Industry Co., Ltd.), and TK-16 (Matsutani Chemical Industry Co., Ltd.) can be used.

[0048] Here, "DE" is an abbreviation for dextrose equivalent, and the DE value indicates the degree of hydrolysis of starch, that is, the saccharification rate of starch. In the present disclosure, the DE value can be a value measured by the Willstatter-Schudel method. The properties of the hydrolyzed starch (starch hydrolyzate), such as the molecular weight of the starch hydrolyzate and the arrangement of sugar molecules constituting the starch hydrolyzate, are not constant for each molecule of the starch hydrolyzate and exist with any distribution or variation. Due to the distribution and variation of the properties of the starch hydrolyzate, or the difference in the cut sections, the starch hydrolyzate can exhibit different physical property characteristics (for example, DE value) for each of its molecules. Thus, the starch hydrolyzate is a collection of molecules showing different physical property characteristics, but the measurement result (that is, the DE value) using the Willstatter-Schudel method is treated as a representative value indicating the degree of hydrolysis of starch.

[0049] Preferably, the starch hydrolyzate can 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. As the dextrin having a DE value of about 2 to about 5, for example, Paine Index #100 (Matsutani Chemical Industry Co., Ltd.) can be utilized. As the resistant dextrin having a DE value of about 10 to about 15, for example, Paine Fiber (Matsutani Chemical Industry Co., Ltd.) can be utilized.

[0050] Also, in some embodiments, the sheet composition may further include a plasticizer. The plasticizer can improve the physical properties of the sheet by imparting appropriate flexibility to the fragrance sheet. The plasticizer can include, for example, at least one of glycerin and propylene glycol, but is not limited thereto.

[0051] In step S200, the manufactured sheet composition can be coated and dried to produce a fragrance sheet. For example, the fragrance sheet can be produced by coating (e.g., casting) the sheet composition on a predetermined substrate and drying it.

[0052] The fragrance sheet thus manufactured can have various composition ratios (content ratios), and the specific composition ratio can vary depending on the blending ratio of the sheet composition, drying conditions, and the like.

[0053] In some embodiments, the fragrance sheet can include about 0.5 to 10 parts by weight of an emulsifier based on 100 parts by weight in total. Within such a numerical range, it has been confirmed that the holding amount and retention of the fragrance increase. For example, when the content of the emulsifier is excessively low, the increase in the holding amount of the fragrance is minimal, and when it is excessively high, it has also been confirmed that the sheet former covering the fragrance and the content of the fragrance decrease, and the holding amount of the fragrance does not increase significantly.

[0054] Also, in some embodiments, the fragrance sheet can include about 10 to 60 parts by weight or 10 to 40 parts by weight of a fragrance based on 100 parts by weight in total, and preferably can include about 20 parts by weight, 22 parts by weight, 24 parts by weight or more, or 26 parts by weight or more of the fragrance. When an appropriate amount of an emulsifier is added, it has been confirmed that the holding amount of the fat-soluble fragrance increases by approximately 10%, 15%, or 20% or more compared to the case without addition.

[0055] Also, in some embodiments, the fragrance sheet can include, based on 100 parts by weight in total, about 2 to about 15 parts by weight of moisture, about 25 to about 90 parts by weight of modified cellulose, and about 0.1 to about 60 parts by weight of fragrance. Further, the fragrance sheet can further include about 0.5 to 10 parts by weight of an emulsifier.

[0056] Also, in some embodiments, the fragrance sheet can include, based on 100 parts by weight in total, about 2 to about 15 parts by weight of moisture, 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 fragrance. Further, the fragrance sheet can further include about 0.5 to 10 parts by weight of an emulsifier.

[0057] Also, in some embodiments, the plasticizer can be included in an amount of about 0.1 to about 15 parts by weight based on 100 parts by weight of the entire fragrance sheet. A sheet having appropriate flexibility can be formed within such a numerical range. For example, when the addition of the plasticizer is excessively small, the flexibility of the sheet may decrease and the fragrance sheet may be easily damaged during the process. When the addition of the plasticizer is excessively large, the sheet may not be formed well.

[0058] So far, some embodiments of the fragrance sheet and its manufacturing method according to the present disclosure have been described with reference to FIG. 1. According to what has been described above, a fragrance sheet with enhanced fragrance retention and fragrance holding property can be easily manufactured by adding an emulsifier that plays a role in cross-linking between the water-soluble hydrocolloid substance and the fat-soluble fragrance.

[0059] Hereinafter, a smoking article (for example, 100) with enhanced fragrance expressivity and fragrance persistence by including the above-described fragrance sheet will be described in detail with reference to the drawings from FIG. 2 and below.

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

[0061] As shown in FIG. 2, the smoking article 100 can include a filter section 120, a smoking substance section 110, and a wrapper (130; wrapper). However, only the components related to the embodiments of the present disclosure are shown in FIG. 2. Therefore, it can be understood that other general components may be further included in addition to the components shown in FIG. 2 for an ordinary technician in the technical field to which the present disclosure belongs. Also, since FIG. 2 only illustrates an example of a part of the smoking article according to various embodiments of the present disclosure, it goes without saying that the detailed structure of the smoking article may be different from that shown in FIG. 2. Hereinafter, each component of the smoking article 100 will be described.

[0062] The filter section 120 can perform a filtering function on the smoke and / or aerosol generated in the smoking substance section 110. For this purpose, the filter section 120 can include a filter (filtering) substance. Examples of the filter substance include cellulose acetate fibers, paper, etc., but the scope of the present disclosure is not limited thereto. The filter section 120 may further include a wrapper 130 that wraps the filter substance (plug).

[0063] As shown in the figure, the filter section 120 can be located downstream of the smoking substance section 110 and connected to the downstream end of the smoking substance section 110. For example, the filter section 120 and the smoking substance section 110 can have a cylindrical (rod) shape and be aligned in the longitudinal axis direction and can be connected by a tipping wrapper. The tipping wrapper can wrap at least a part of the filter section 120 and at least a part of the smoking substance section 110 together to connect the filter section 120 and the smoking substance section 110. When the filter section 120 forms the downstream end of the smoking article 100, the filter section 120 may function as a mouthpiece that contacts the smoker's mouth.

[0064] Since the filter section 120 is manufactured in the form of a rod, it may be referred to as "filter rod 120" in some cases and can be manufactured in various forms such as a cylindrical type, a tube type including a hollow inside, a recess type, etc.

[0065] Next, the smoking substance part 110 can contain a smoking substance that can generate smoke and / or aerosol by being burned or heated. The smoking substance part 110 may further include a wrapper 130 that wraps the smoking substance.

[0066] As shown in the figure, the smoking substance part 110 can be located upstream of the filter part 120 and connected to the upstream end of the filter part 120. The smoke and / or aerosol generated in the smoking substance part 110 by puffing can be transmitted to the smoker's mouth through the filter part 120.

[0067] Since the smoking substance part 110 is also manufactured in the form of a rod, it may optionally be referred to as the "smoking substance rod 110". Or the smoking substance part 110 may be referred to as the "medium part 110".

[0068] The smoking substance can include, for example, a tobacco substance. The tobacco substance can include, for example, shredded tobacco leaves, tobacco stems, or substances processed from these. As more specific examples, the tobacco substance can include ground tobacco leaves, reconstituted ground tobacco, expanded cuts, expanded midribs, and lamina. However, it is not limited to this. Also, the tobacco substance can have the form of tobacco cuts, tobacco particles, tobacco sheets, tobacco beads, tobacco granules, or tobacco extracts, but it is not limited to this.

[0069] In some embodiments, the smoking substance can further contain additive substances such as a wetting agent (humectant), a flavoring agent, and / or an organic acid. For example, the wetting agent may contain at least one of glycerin, propylene glycol, ethylene glycol, dipropylene glycol, diethylene glycol, triethylene glycol, tetraethylene glycol, and oleyl alcohol. The wetting agent can maintain the moisture in the tobacco substance at an appropriate level, soften the unique taste, and enrich the atomization amount. Also, the flavoring agent may include, for example, licorice, sucrose, fructose syrup, isosweet, cocoa, lavender, cinnamon, cardamom, celery, coriander, cascarilla, sandalwood, bergamot, geranium, honey essence, rose oil, vanilla, lemon oil, orange oil, mint oil, ginger, caraway, cognac, jasmine, chamomile, menthol, ginger, ylang-ylang, sage, spearmint, ginger, coendro, clove extract (or clove substance), or coffee, etc.

[0070] Next, the wrapper 130 can mean something that wraps at least a part of the smoking substance part 110 and / or the filter part 120. The wrapper 130 may refer to an individual wrapper of the smoking substance part 110 or the filter part 120, may refer to a wrapper that wraps at least a part of the smoking substance part 110 and the filter part 120 together, such as a tipping wrapper, or may refer to a general term for all the wrappers used in the smoking article 100. The wrapper 130 may be made of porous or non-porous wrapping paper, but the scope of the present disclosure is not limited thereto. For example, the wrapper 130 may be in the form of a metal foil or a superposition of wrapping paper and a metal foil.

[0071] According to various embodiments of the present disclosure, as shown in the figure, the flavor sheet 10 can be applied (arranged) to the smoking substance part 110 and / or the wrapper 130. The flavor sheet 10 applied in this way can increase the aroma expressiveness and aroma persistence of the smoking article 100 by continuously emitting an aroma during smoking. In other words, different from the case where the flavor is introduced in a liquid form, the problem that a large amount of aroma is emitted at the initial stage of smoking can be effectively solved by the flavor fixed (coated) by the sheet former gradually and continuously emitting during smoking. However, the specific application method can be changed.

[0072] In some embodiments, the flavor sheet 10 can be arranged (for example, attached (overlaid), coated) inside the wrapper 130. For example, the flavor sheet 10 can be arranged inside the wrapper 130 in a form that wraps all or part of the smoking substance part 110. When at least a part of the wrapper 130 is made of a metal foil, the flavor sheet 10 can be arranged inside the metal foil. In such a case, the emission of the aroma of the flavor sheet 10 can be further promoted by the heat transmitted through the metal foil. The process of arranging the flavor sheet 10 on the wrapper 130 will be described later with reference to FIGS. 3 and 4.

[0073] In some other embodiments, the flavor sheet 10 may constitute at least a part of the wrapper 130. That is, the flavor sheet 10 itself can function as the wrapper 130 of the smoking article 100. At this time, the wrapper 130 may be composed only of the flavor sheet 10, or may be composed in a form in which the flavor sheet 10 and the wrapping paper are integrated. In such a case, the process of arranging the flavor sheet 10 on the wrapper 130 (for example, the attachment (overlay) process, the coating process) is not required, and the manufacturing process of the smoking article 100 can be more simplified.

[0074] In still some other embodiments, the flavor sheet 10 may be applied to parts other than the wrapper 130. For example, the flavor sheet 10 may be cut into a cut form (e.g., cut tobacco, cut sheet of leaves, etc.) and blended and put into the smoking material part 110. As another example, the flavor sheet 10 may be put into the smoking material part 110 in a form laminated (adhered) to a tobacco sheet (e.g., a tobacco substance in the form of a sheet like a sheet of leaves). As still another example, the flavor sheet 10 may be arranged in the smoking material part 110 or other parts (e.g., inside the cooling part, inner wall of the cooling part, etc.) in a rolled or folded form, and such examples will be described in more detail with reference to FIGS. 5 to 8 hereinafter.

[0075] So far, the smoking article 100 according to some embodiments of the present disclosure has been described with reference to FIG. 2. According to what has been described above, by applying the flavor sheet 10 to the smoking article 100 in various forms, the aroma expressiveness and aroma persistence of the smoking article 100 can be improved. For example, the aroma persistence of the smoking article 100 can be greatly improved by the fragrance fixed by the sheet former being gradually released during smoking.

[0076] Hereinafter, a method for manufacturing a wrapping material to which the flavor sheet 10 is applied will be described with reference to FIGS. 3 and 4.

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

[0078] In some embodiments, the wrapping material can be manufactured through a step of overlapping the flavor sheet 10 and the wrapping paper. For the convenience of understanding, this embodiment will be described with reference to FIG. 3.

[0079] As shown in FIG. 3, the wrapping paper can be supplied through the first bobbin 410 around which the wrapping paper is wound, and at the same time, the flavor sheet 10 can be supplied through the second bobbin 420 around which the flavor sheet 10 is wound. Then, the supplied wrapping paper and the flavor sheet 10 can be overlapped through the press roller 440. At this time, when the flavor sheet 10 is composed of a hydrocolloid substance, a predetermined liquid can be injected through the injector 430. Then, the injected liquid causes the flavor sheet 10 to have adhesiveness, and the flavor sheet 10 can be strongly overlapped with the wrapping paper without a separate adhesive. Also, accordingly, the wrapping material 450 of the smoking article can be easily manufactured. The manufactured wrapping material 450 can be cut to an appropriate size and used as a wrapper for the smoking article.

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

[0081] Also, the thickness of the flavor sheet 10 supplied through the second bobbin 420 can be about 60 μm to 150 μm, preferably about 60 μm to 120 μm. Within such a numerical range, the flavor sheet 10 can be easily overlapped with the wrapping paper, and the problem that the wrapping material 450 becomes excessively thick can be prevented, and appropriate flexibility can be ensured.

[0082] In some other embodiments, the wrapping material can be manufactured through a coating process of applying and drying a liquid sheet composition on the wrapping paper. For the convenience of understanding, this embodiment will be described with reference to FIG. 4.

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

[0084] At this time, the thickness occupied by the coated sheet composition 530 can be about 100 μm or less, preferably about 90 μm, 80 μm, 70 μm, 60 μm or 50 μm or less. Within such a numerical range, the wrapping material 550 can be prevented from becoming overly thick and appropriate flexibility can be ensured.

[0085] As described above, when the wrapping materials 450, 550 are manufactured, the manufactured wrapping materials 450, 550 are cut to an appropriate size, and a smoking article (e.g., 100) with enhanced aroma persistence and aroma expressiveness can be manufactured by wrapping at least a part of the smoking article (e.g., 100) with the cut wrapping materials 450, 550. For example, a smoking article (e.g., 100) can be manufactured by wrapping at least a part of the smoking substance part (e.g., 110) with the wrapping materials 450, 550.

[0086] So far, the manufacturing method of the wrapping material according to some embodiments of the present disclosure has been described with reference to FIGS. 3 and 4. According to the method described above, the wrapping paper of the smoking article (for example, 100) and the flavor sheet 10 can be overlapped, or the composition of the flavor sheet 10 can be applied onto the wrapping paper, whereby the wrapping material of the smoking article (for example, 100) can be easily manufactured. Further, when the manufactured wrapping material is used, there is an advantage that the smoking article (for example, 100) can be manufactured by directly using the existing manufacturing equipment (that is, the equipment for performing the wrapping of the smoking article).

[0087] Hereinafter, the application method of the smoking article 200 and the flavor sheet 10 according to some other embodiments of the present disclosure will be described with reference to the drawings from FIG. 5 and below. However, for the sake of clarity of the present disclosure, the description of the content overlapping with the smoking article 100 described above will be omitted.

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

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

[0090] The smoking substance part 210 may correspond to the smoking substance part 110 described above. Therefore, the description thereof will be omitted.

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

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

[0093] The first segment 221 can be manufactured in various forms. As an example, the first segment 221 can be a paper tube in a cylindrical form made of paper material and including a hollow. As another example, the first segment 221 may be made of a polymer material or a biodegradable polymer material. For example, the first segment 221 can be made of polylactic acid (PLA) fibers, but is not limited thereto. As yet another example, the first segment 221 can be made of a cellulose acetate filter with a plurality of holes drilled therein. As yet another example, the first segment 221 can be a tube filter including a hollow. For example, the first segment 221 can be a cellulose acetate filter including a hollow. However, it is not limited thereto, and the first segment 221 may be manufactured in a form different from the exemplified one as long as it can perform the cooling function.

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

[0095] In some examples, as shown in FIG. 6, the fragrance sheet 10 can be rolled or folded in an irregular pattern and applied to the first segment 221 (see 10-1). Or the fragrance sheet 10 can be rolled in a spiral form (see 10-2) or a concentric form (see 10-3) and applied to the first segment 221. Or the fragrance sheet 10 may be applied to the first segment 221 in a form folded multiple times (e.g., a form folded so as to ensure an air flow path in the length direction) (see 10-4). When the fragrance sheet 10 is applied to the first segment 221 in the exemplified form, an air flow path can be ensured in the length direction, and a smooth air flow and an appropriate suction resistance can be guaranteed. Also, the contact area between the fragrance sheet 10 and the high-temperature air flow increases, and the cooling performance of the first segment 221 can also be improved.

[0096] Also, in some examples, the flavor sheet 10 can be attached to the inner wall of the first segment 221. In such a case, since the flavor sheet 10 has no negative impact on the flow of the air current within the first segment 221, smooth air current flow and appropriate suction resistance can be further better ensured.

[0097] On the other hand, in the above-described examples, the flavor sheet 10 can be a sheet processed through a predetermined process.

[0098] For example, as shown in FIG. 7, the flavor sheet 10 can be processed so as to have wrinkles generated or be folded in the longitudinal direction (i.e., the MD direction) of the smoking article 200. For example, the flavor sheet 10 can have wrinkles generated or be 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 creep is imparted to the sheet surface through the roller pressure and speed difference of crimping equipment, and it is divided into a wet process and a dry process. The wet process means a process in which the base paper is wetted with water, softened, crimped, and then undergoes a re-drying process. The dry process means a drying process by two dryers with different temperatures. Since those skilled in the art are already familiar with the pleating process, the folding process, and the gathering process, further explanation thereof will be omitted. According to this embodiment, a number of channels can be formed in the length direction of the flavor sheet 10 through at least one of the exemplified processes, and smooth air current flow and appropriate suction resistance can be ensured through the formed channels. Moreover, the contact area between the flavor sheet 10 and the high-temperature air current increases, and the cooling performance can also be improved.

[0099] As another example, as shown in FIG. 8, the flavor sheet 10 may be processed such that a plurality of holes (101; hole) are formed. For example, a plurality of holes 101 may be formed in the flavor sheet 10 through a punching process. At this time, the diameter of the hole 101 may be about 0.05 mm to 5 mm, preferably about 0.1 mm to 3 mm or about 0.2 mm to 2.5 mm, about 0.3 mm to 2.1 mm or about 0.4 mm to 1.8 mm. Within such a numerical range, a smooth air flow and appropriate suction resistance can be ensured. Moreover, the contact area between the flavor sheet 10 and the high-temperature air flow is maximized, and the cooling performance of the first segment 221 can be significantly improved.

[0100] On the other hand, in some embodiments, the sheet former constituting the flavor sheet 10 may be a cellulose-based substance. Examples of cellulose-based substances include, but are not limited to, HPMC, MC, CMC, and agar. Since such cellulose-based substances have the property of well absorbing hot air through a phase change when in contact with a high-temperature air flow, the cooling performance of the first segment 221 can be further improved. Moreover, by slowly discharging the coated flavor due to the phase change, the fragrance persistence of the smoking article 200 can be greatly improved.

[0101] Also, in some embodiments, the flavor contained in the flavor sheet 10 may have a melting point of about 80° C. or lower. In such a case, when the flavor sheet 10 comes into contact with an air flow of 80° C. or higher, the flavor undergoes a phase change and further absorbs hot air, so the cooling performance of the first segment 221 can be further improved. Considering that the temperature of the generally heated smoke / aerosol is 80° C. or higher, the use of such flavors can effectively enhance the cooling performance of most heated smoking articles. Moreover, the fragrance expressiveness of the smoking article 200 can be enhanced by the easy volatilization of the phase-changed flavor. Examples of flavors having a melting point of about 80° C. or lower include, but are not limited to, menthol.

[0102] Referring back to FIG. 5 for description.

[0103] Next, the second segment 222 can perform a filtering function on the smoke and / or aerosol that has passed through the first segment 221. Therefore, in some cases, the second segment 222 may be referred to as the "filter segment 222" or the "filter part 222". Or, when the second segment 222 is located at the mouthpiece site, it may be referred to as the "mouthpiece segment 222" or the "mouthpiece part 222".

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

[0105] Next, the wrapper 230 can correspond to the aforementioned wrapper 130. Therefore, the description thereof will be omitted. As described above, the fragrance sheet 10 may also be applied to the wrapper 230. By doing so, the fragrance expressiveness and fragrance persistence of the smoking article 200 can be further enhanced.

[0106] On the other hand, although not shown in FIG. 5, the smoking article 200 may further include a plug (not shown) disposed at the end. For example, the plug is disposed at the upstream end of the smoking article 200 and can perform a function of appropriately adjusting the overall length of the smoking article 200. Also, when the smoking article 200 is inserted into an aerosol generating device (not shown), the plug may perform a function of adjusting so that the smoking substance part 210 is disposed at an appropriate position inside the aerosol generating device.

[0107] Previously, some other embodiments of the smoking article 200 according to the present disclosure have been described with reference to FIGS. 5 to 8. According to the foregoing, by applying the flavor sheet 10 to the smoking article 200 in various forms, the aroma expressiveness and aroma persistence of the smoking article 200 can be improved. Not only that, by applying the flavor 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] As described above, the embodiments of the present disclosure have been described with reference to the accompanying drawings. However, those of ordinary skill in the art to which the present disclosure pertains can understand that the present disclosure can be implemented in other specific forms without changing its technical idea and essential features. Therefore, the embodiments described above should be understood as illustrative in all aspects and not restrictive. The protection scope of the present disclosure should be construed by the following claims, and all technical ideas within the equivalent scope should be construed as being included in the scope of rights of the technical idea defined by the present disclosure.

Claims

1. A hydrocolloid substance forming a sheet, an emulsifier, and a fat-soluble fragrance, wherein the hydrocolloid substance contains a modified cellulose substance, the modified cellulose substance contains at least one substance selected from hydroxypropyl methylcellulose, methylcellulose, and ethylcellulose, the fragrance sheet is based on 100 parts by weight in total, contains 2 to 15 parts by weight of moisture, 25 to 90 parts by weight of the modified cellulose substance, 0.5 to 10 parts by weight of the emulsifier, and 10 to 40 parts by weight of the fat-soluble fragrance, the fragrance sheet.

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

3. The LM-pectin contains less than 50% of carboxyl groups and has the property of not gelling when cooled, the fragrance sheet according to claim 2.

4. A smoking substance part, a filter part, and a wrapper wrapping at least a part of the smoking substance part or the filter part, wherein a fragrance sheet is disposed on at least a part of the smoking substance part, the filter part, or the wrapper, the fragrance sheet contains a hydrocolloid substance, an emulsifier, and a fat-soluble fragrance, the hydrocolloid substance contains a modified cellulose substance, the modified cellulose substance contains at least one substance selected from hydroxypropyl methylcellulose, methylcellulose, and ethylcellulose, the fragrance sheet is based on 100 parts by weight in total, contains 2 to 15 parts by weight of moisture, 25 to 90 parts by weight of the modified cellulose substance, 0.5 to 10 parts by weight of the emulsifier, and 10 to 40 parts by weight of the fat-soluble fragrance, a smoking article.

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