Flavored sheet with improved surface roughness, smoking article containing same, and manufacturing method thereof

Abstract

A flavored sheet having improved surface roughness, a smoking article including the same, and a method for manufacturing the same are provided. A method for manufacturing a flavored sheet according to some embodiments of the present disclosure may include a step of blending a hydrocolloid material, a solvent, a powdered material, and a flavor to manufacture a sheet composition, and a step of drying the manufactured sheet composition. The powdered material can improve the surface roughness of the flavored sheet, thereby ultimately promoting compatibility with the shredded tobacco material.

Description

[Technical field]

[0001] The present disclosure relates to a flavored sheet having an improved surface roughness, a smoking article including the same, and a method for manufacturing the same, and more particularly to a flavored sheet having an improved surface roughness to enhance compatibility with shredded tobacco material, a smoking article including such a flavored sheet and thereby having improved flavor development and flavor persistence, and a method for manufacturing the same. [Background technology]

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

[0003] Specifically, in the method of adding liquid fragrance to smoking materials, the liquid fragrance can coagulate with the smoking materials, making it difficult to add a large amount of liquid fragrance. Also, as the liquid fragrance changes due to the high heating temperature (or combustion temperature) during smoking, unintended aromas may be released. Next, in the method of adding liquid fragrance to a filter plug, a larger amount of liquid fragrance can be added compared to the above-mentioned method, but there is also a limit to the amount that can be added.

[0004] However, regardless of the method used, 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. Also, if too much flavor liquid is added, the filter plug or the wrapper that encases the smoking material may become wet, causing contamination. 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 having improved surface roughness and a manufacturing method thereof.

[0006] Another technical problem to be solved through some embodiments of the present disclosure is to provide a smoking article having enhanced aroma expression and aroma persistence, and a manufacturing method thereof.

[0007] The technical problems of the present disclosure are not limited to the technical problems mentioned above, and other technical problems not mentioned can be clearly understood by a person of ordinary skill 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, a method for producing a fragranced sheet according to some embodiments of the present disclosure may include a step of producing a sheet composition by blending a hydrocolloid substance, a solvent, a powdery substance, and a fragrance, and a step of drying the produced sheet composition.

[0009] In some embodiments, the hydrocolloid material may include a modified cellulosic material.

[0010] In some embodiments, drying the manufactured sheet composition may include coating the manufactured sheet composition, adding a powdered material to the coated sheet composition, and drying.

[0011] In some embodiments, the powdered substance may be a substance that is poorly soluble or insoluble in the solvent.

[0012] In some embodiments, the powdered substance may be a bulking agent.

[0013] In some embodiments, the powdered substance may be an emulsifier.

[0014] In order to solve the above technical problems, a fragrance sheet according to some embodiments of the present disclosure may be manufactured through a step of manufacturing a sheet composition by blending a hydrocolloid substance, a solvent, a powdery substance, and a fragrance, and a step of drying the manufactured sheet composition.

[0015] In order to solve the above technical problems, a smoking article according to some embodiments of the present disclosure may include a smoking material part in which shredded pieces of a flavoring sheet and shredded tobacco material are blended. In this case, the flavoring sheet may be manufactured through a step of manufacturing a sheet composition by blending a hydrocolloid material, a solvent, a powdery material, and a flavoring, and a step of drying the manufactured sheet composition. Effect of the Invention

[0016] According to some embodiments of the present disclosure described above, a flavor sheet having improved (increased) surface roughness can be manufactured by blending a powdery material into the sheet composition or adding a powdery material during the manufacturing process. Since such a flavor sheet has a small effective area that can come into contact with other materials, it is possible to minimize the sticking phenomenon (e.g., the phenomenon of sticking to each other) when blended with shredded tobacco material. This also allows the shredded tobacco material and the shredded flavor sheet to be blended uniformly, improving the workability of the blending process.

[0017] It is also possible to provide a smoking article in which shredded pieces of a flavoring sheet and shredded tobacco material are blended, which ensures uniform flavor development and excellent flavor persistence.

[0018] Furthermore, a hardly soluble or insoluble substance can be used as the powdered substance. In this case, the added powdered substance remains almost intact on the surface of the scented sheet, so that the surface roughness of the scented sheet can be further improved.

[0019] A bulking agent can also be used as the powdered substance, which not only improves the surface roughness but also improves the bulkiness and fragrance retention of the fragrance sheet.

[0020] Furthermore, an emulsifier can be used as the powdered material. The emulsifier acts as a bridge between the water-soluble hydrocolloid material and the fat-soluble fragrance, thereby improving the roughness of the fragrance sheet and at the same time improving the amount and retention of fragrance.

[0021] The effects of the technical ideas of the present disclosure are not limited to the effects mentioned above, and other effects not mentioned can be clearly understood by those skilled in the art from the following description. [Brief description of the drawings]

[0022] [Figure 1] 1 is an exemplary flowchart that generally illustrates a method for manufacturing a perfume sheet according to some embodiments of the present disclosure. [Diagram 2] 1A-1C are illustrative diagrams for further illustrating a method for producing a perfume sheet according to some embodiments of the present disclosure. [Diagram 3] 1 is a schematic illustration of a smoking article according to some embodiments of the present disclosure. [Figure 4] FIG. 2 is an illustrative diagram for explaining an application method of a scented sheet according to some embodiments of the present disclosure. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0023] 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, as well as the methods for achieving them, will become clear with reference to the following embodiments described in detail 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. The following embodiments are merely 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 only defined by the scope of the claims.

[0024] When adding reference symbols to components in each drawing, it should be noted that the same symbols are used for the same components even if they are displayed in different drawings. In addition, when describing the present disclosure, if it is determined that a detailed description of related known configurations or functions may make the gist of the present disclosure unclear, the detailed description will be omitted.

[0025] Unless otherwise defined, all terms (including technical and scientific terms) used herein may be used in a manner commonly understood by those having ordinary skill in the art to which the present invention belongs. In addition, terms defined in commonly used dictionaries are not idealized or overly analyzed unless specifically defined. The terms used herein are for describing 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 text.

[0026] In addition, when describing components of the present disclosure, terms such as first, second, A, B, (a), (b), etc. may be used. Such terms are merely used to distinguish the components from other components, and do not limit the essence, 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 each component.

[0027] 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.

[0028] First, we clarify some terminology used in the various embodiments of this disclosure.

[0029] In the following embodiments, "smoking article" may refer to any product that can be smoked or that can provide a smoking experience, whether based on tobacco, tobacco derivatives, expanded tobacco, reconstituted tobacco, or tobacco substitutes. For example, smoking articles may include smokable products such as cigarettes, cigars, and cigarillos, etc. As another example, smoking articles may include combustion smoking articles and heated smoking articles.

[0030] In the following embodiments, "smoking material" may refer to a material that produces smoke and / or aerosol or is used for smoking. For example, the smoking material may include tobacco material. The tobacco material may include, for example, tobacco leaf slices, tobacco stems, or materials processed therefrom. As more specific examples, the tobacco material may include ground tobacco leaves, ground reconstituted tobacco, expanded shreds, expanded midribs, and tabular leaves. However, the tobacco material is not limited thereto.

[0031] In the following embodiments, "upstream" or "upstream direction" may mean a direction away from the mouth of the smoker, and "downstream" or "downstream direction" may mean a direction toward the mouth of the smoker. The terms upstream and downstream may be used to describe the relative positions of elements constituting a smoking article. For example, in the smoking article 100 illustrated in FIG. 3, the filter portion 120 is located downstream or downstream of the smoking material portion 110, and the smoking material portion 110 is located upstream or upstream of the filter portion 120.

[0032] In the following embodiments, "longitudinal direction" may mean the direction corresponding to the longitudinal axis of the smoking article.

[0033] In the following embodiments, "puff" refers to inhalation by a user (smoker), which may refer to the situation of drawing in the smoke through the smoker's mouth or nose into the smoker's oral cavity, nasal cavity, or lungs.

[0034] In the following embodiments, a "sheet" may refer to a thin 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, film, etc.

[0035] In the following embodiments, "flavor sheet" or "flavoring sheet" may refer to a flavoring-containing material manufactured in sheet form.

[0036] In the following embodiments, the term "powder" refers to any form such as particles, powder, beads, granules, and powder.

[0037] Various embodiments of the present disclosure are described in detail below.

[0038] According to some embodiments of the present disclosure, a flavor sheet with improved surface roughness can be provided. Specifically, a flavor sheet with improved surface roughness can be manufactured by adding a powdered material during the process of manufacturing the flavor sheet. Since such a flavor sheet has a relatively small actual area that can contact other materials, it can be uniformly blended with shredded tobacco materials (e.g., shredded leaf tobacco, shredded leaf sheets) during the manufacture of smoking articles. For example, to explain further, when shredded flavor sheet and shredded leaf tobacco are blended, a phenomenon in which the shredded leaf tobacco and the shredded leaf tobacco adhere to each other may occur due to the influence of moisture contained in the flavor sheet and the shredded leaf tobacco. This adhesion phenomenon may be accelerated as the surface area (or contact area) of the flavor sheet (or the shredded sheet) is larger, but by increasing the surface roughness, the actual contact area is reduced, so that this adhesion phenomenon can be effectively prevented, and thus the shredded flavor sheet and the shredded leaf tobacco can be uniformly blended.

[0039] The above-mentioned scented sheet will be described in detail below with reference to the accompanying drawings.

[0040] 1 is an exemplary flowchart showing a schematic diagram of a method for producing a perfume sheet according to some embodiments of the present disclosure. However, this is merely a preferred embodiment for achieving the object of the present disclosure, and it goes without saying that some steps can be added or deleted as necessary.

[0041] As shown in Fig. 1, the manufacturing method according to the present embodiment may start with step S100 of manufacturing a sheet composition by blending a powdery substance. Specifically, a hydrocolloid substance, a solvent such as distilled water or ethanol, a flavoring, and a powdery substance may be blended to manufacture a liquid (e.g., slurry) sheet composition. Here, the liquid may include not only a liquid state, but also a state in which a liquid and a solid are mixed (e.g., a slurry state).

[0042] A solvent such as distilled water or ethanol may be an element for adjusting the viscosity of the slurry sheet composition.

[0043] Next, the hydrocolloid material may be a material that coats and fixes the flavoring and may also be a sheet-forming agent that forms a sheet. When the hydrocolloid material comes into contact with a solvent such as distilled water or ethanol, it exhibits viscosity by itself, so that a flavoring sheet based on such a material has the advantage that it can be easily attached to a smoking article without a separate adhesive. For example, when a flavoring sheet is placed on a wrapper of a smoking article, if a hydrocolloid material is used as a sheet-forming agent, the process of placing the flavoring sheet can be simplified and there can be no safety issues caused by adhesives.

[0044] 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.

[0045] In some embodiments, the sheet composition may include modified cellulose materials among various hydrocolloid materials. Here, "modified cellulose" may mean cellulose in which a specific functional group is substituted in the molecular structure. Examples of modified cellulose include, but are not limited to, HPMC, MC, CMC, and EC. For example, HPMC may have a grade within the range of about 4 to 40,000 depending on the ratio of hydroxypropyl groups and methyl groups (or methoxy groups) substituted and the molecular weight. The viscosity of the modified cellulose can be determined depending on 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, and according to the United States Pharmacopoeia (USP), the types of HPMC may be classified into HPMC1828, HPMC2208, HPMC2906, HPMC2910, etc. depending on the ratio of methoxy groups and hydroxypropyl groups. Here, the first two numbers may represent the ratio of methoxy groups, and the last two numbers may represent the ratio of hydroxypropyl groups. As a result of the inventors' continued experiments, it was confirmed that a perfumed sheet made from a sheet composition containing modified cellulose has excellent sheet physical properties and fragrance retention.

[0046] Examples of flavorings 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, cloves, lavender, cardamom, clove fragrance, 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, fructose, isomerized sugar, caramel, etc.), cocoa (powder, extract, etc.), esters (eg isoamyl acetate, linalyl acetate, isoamyl propionate, linalyl butyrate, etc.), ketones (eg menthone, ionone, damascenone, ethylmatol, etc.), alcohols (eg geraniol, linalool, anethole, eugenol, etc.), aldehydes (eg vanillin, benzaldehyde, anisaldehyde, etc.), lactones (eg γ-undecalactone, γ-nonalactone, etc.), animal flavors (eg musk, ambergris, civet, castoreum, etc.), and hydrocarbons (eg limonene, pinene, etc.). 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 flavoring agents may be used alone or as a mixture. However, the scope of the present disclosure is not limited to the above examples.

[0047] Next, the powdery material may be a material that exists in a powder form at room temperature. The powdery material may serve to increase the surface roughness of the fragrance sheet. For example, the powdery material may remain on the surface of the fragrance sheet after drying, thereby increasing the surface roughness of the fragrance sheet. However, the type of powdery material may vary depending on the embodiment.

[0048] In some embodiments, the powdered substance may be a bulking agent. In other words, the powdered substance may be a bulking agent that exists in powder form at room temperature. Examples of such bulking agents include, but are not limited to, alpha-cyclodextrin, beta-cyclodextrin, and gamma-cyclodextrin. For reference, beta-cyclodextrin has the lowest solubility in distilled water among cyclodextrin substances, and is therefore more effective in increasing the surface roughness of the fragrance sheet. According to this embodiment, by using a powdered bulking agent, the surface roughness of the fragrance sheet can be increased while the fragrance retention can be improved.

[0049] In some embodiments, the powdered material may be an emulsifier. In other words, the powdered material may be an emulsifier that exists in a powder form at room temperature. Examples of such emulsifiers include, but are not limited to, sucrose esters. According to the present embodiment, the use of a powdered emulsifier can increase the surface roughness of the fragrance sheet while also improving the fragrance retention. For example, when the fragrance is fat-soluble, the emulsifier acts as a bridge between the water-soluble hydrocolloid material and the fat-soluble fragrance, so that the fragrance retention of the fragrance sheet can be significantly increased.

[0050] In some embodiments, the powdery substance may be a poorly soluble or insoluble substance. For example, the powdery substance may be a substance that is poorly soluble or insoluble in distilled water. In this case, the amount of powdery substance remaining on the surface of the fragrance sheet after drying is greatly increased, so that the surface roughness of the fragrance sheet can be further improved.

[0051] In some embodiments, the powdered substance may be a substance having a solubility of 100 mg / L or less at 25° C. For example, the powdered substance may be a substance having a solubility of 100 mg / L or less in distilled water at 25° C. Examples of such substances include, but are not limited to, sucrose esters. According to this embodiment, the amount of powdered substance remaining on the surface of the fragrance sheet after drying is greatly increased, so that the surface roughness of the fragrance sheet can be further improved.

[0052] Examples of powdery substances include, but are not limited to, methyl cellulose (MC), ethyl cellulose (EC), cellulose acetate, carboxymethyl cellulose (CMC), and methyl ethyl cellulose (MEC).

[0053] Meanwhile, in some embodiments, the sheet composition may further include LM pectin (low methoxyl pectin). Alternatively, LM pectin from among hydrocolloid materials may be included in the sheet composition as a sheet forming agent. LM pectin is a low ester pectin or low methoxyl pectin that is relatively less esterified, and specifically, it may mean a pectin that contains less than about 50% of carboxyl groups inside the molecular structure. Unlike carrageenan, LM pectin has the property of not gelling when left to cool, and therefore, by reducing the viscosity of the slurry sheet composition (e.g., about 600 cp to 800 cp), the workability of the manufacturing process can be improved.

[0054] 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 content of carboxy groups within the molecular structure of the LM pectin, the lower the viscosity of a slurry (i.e., sheet composition) containing the LM pectin can be.

[0055] In some embodiments, the sheet composition may further include an emulsifier. The emulsifier allows the highly lipophilic fragrance and the water-soluble hydrocolloid material to be mixed well, greatly increasing the fragrance retention and fragrance retention of the fragrance sheet. Examples of emulsifiers include natural emulsifiers such as Montanove wax, olive emulsifying wax, lecithin, glyceryl stearate, stearic acid, and lecithin, and synthetic emulsifiers such as monoglycerides, diglycerides, sorbitan, fatty acid esters, and sucrose esters, but are not limited thereto.

[0056] In some embodiments, the sheet composition may further include a bulking agent. The bulking agent may be a substance that can increase the total mass (i.e., dry mass) of components other than distilled water to increase the volume of the perfume sheet produced, and 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 and do not substantially increase the viscosity of the slurry, while not adversely affecting 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 thereto.

[0057] Modified starch refers to starch acetate, oxidized starch, hydroxypropyl distarch phosphate, hydroxypropyl starch, distarch phosphate, monostarch phosphate, phosphorylated distarch phosphate, and the like.

[0058] 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.

[0059] The starch hydrolysate may generally be a starch hydrolysate having a DE value in the range of about 2 to about 40, preferably a starch hydrolysate having a DE value in the range of about 2 to about 20. Examples of starch hydrolysates having a DE value in 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.).

[0060] Here, "DE" is an abbreviation for dextrose equivalent, and the DE value indicates the degree of hydrolysis of starch, i.e., the saccharification rate of starch. In this disclosure, the DE value is 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 the sugar molecules that constitute the starch hydrolysate, are not constant for each molecule of the starch hydrolysate, but exist with any distribution or variation. Depending on the distribution or variation of the properties of the starch hydrolysate, or the difference in the section to be cut, the starch hydrolysate can express different physical properties (e.g., DE value) for each molecule. In this way, the starch hydrolysate is a collection of molecules that exhibit different physical properties, but the measurement result by the Willstatter-Schudel method (i.e., DE value) is treated as a representative value indicating the degree of hydrolysis of starch.

[0061] 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. As a dextrin having a DE value of about 2 to about 5, for example, Pine Index #100 (Matsutani Chemical Industry Co., Ltd.) may be used. As a resistant dextrin having a DE value of about 10 to about 15, for example, Pine Fiber (Matsutani Chemical Industry Co., Ltd.) may be used.

[0062] 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 flavored sheet. The plasticizer may include, but is not limited to, at least one of glycerin and propylene glycol. For reference, the exemplified plasticizers can further improve the physical properties of the flavored sheet by increasing the moisture content of the flavored sheet. For example, the exemplified plasticizers can increase the moisture content to minimize the crushing phenomenon of the flavored sheet when the sheet is cut, thereby greatly improving the workability of the cutting process. However, as the moisture content increases, the workability of the process of blending the cut pieces of the flavored sheet with the shredded tobacco material may decrease (e.g., the increase in moisture content may accelerate the adhesion phenomenon, thereby decreasing the workability of the blending process), but this problem can be solved by improving the surface roughness of the flavored sheet.

[0063] In step S200, the prepared sheet composition can be applied and dried to prepare a perfume sheet. For example, the sheet composition can be applied (e.g., cast) onto a predetermined substrate and dried to prepare a perfume sheet.

[0064] In some embodiments, a step of adding a powdery substance may be performed during or before drying the applied sheet composition. In this case, the added powdery substance may be the same as or different from the powdery substance contained in the sheet composition. In some cases, the powdery substance may not be mixed into the sheet composition, but may be added only during drying. Hereinafter, for ease of understanding, this embodiment will be further described with reference to FIG. 2.

[0065] As shown in Fig. 2, a sheet composition 2 can be applied using an applicator 1. In addition, while the applied sheet composition 2 is being dried (see the dotted square), a powdery substance 4 can be sprayed (added) onto the sheet composition 2 using a sprayer 3. In this case, the drying is performed with the powdery substance 4 distributed on the surface of the sheet composition 2, so that most of the powdery substance 4 remains evenly on the surface of the fragrance sheet 10 after drying. This also allows the surface roughness of the fragrance sheet 10 to be significantly improved.

[0066] Meanwhile, the fragrance sheet manufactured as described above may have various composition ratios (content ratios), however, the specific composition ratios may vary depending on the compounding ratio of the sheet composition and drying conditions.

[0067] In some embodiments, the fragrance sheet may contain about 0.5 to 10 parts by weight of emulsifier based on a total of 100 parts by weight. It has been confirmed that within such a numerical range, the amount and retention of fragrance increases. For example, it has been confirmed that when the content of emulsifier is too low, the increase in the amount of fragrance held is very small, and when it is too high, the content of the sheet forming agent that covers the fragrance and the fragrance decreases, and the amount of fragrance held does not increase significantly.

[0068] 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.

[0069] In some embodiments, the fragrance sheet may contain about 2 to 15 parts by weight of water, about 25 to 90 parts by weight of modified cellulose, and about 0.1 to 60 parts by weight of fragrance, based on a total of 100 parts by weight. The fragrance sheet may further contain about 0.5 to 10 parts by weight of an emulsifier.

[0070] In some embodiments, the fragrance sheet may contain, based on a total of 100 parts by weight, about 2 to 15 parts by weight of water, about 1 to 60 parts by weight of a hydrocolloid substance, about 1 to 60 parts by weight of LM pectin, and about 0.1 to 60 parts by weight of a fragrance. The fragrance sheet may further contain about 0.5 to 10 parts by weight of an emulsifier.

[0071] In some embodiments, the plasticizer may be contained in an amount of about 0.1 to 30 parts by weight, preferably about 5 to 30 parts by weight, 5 to 25 parts by weight, or 5 to 20 parts by weight, based on 100 parts by weight of the total fragrance sheet. A sheet having appropriate flexibility can be formed within such a numerical range. For example, if too little plasticizer is added, the flexibility of the sheet decreases and the fragrance sheet may be easily crushed during the cutting process, and if too much plasticizer is added, the sheet is not well formed or becomes soft.

[0072] In some embodiments, the moisture content may be about 5 to 30 parts by weight, preferably about 5 to 25 parts by weight, 5 to 20 parts by weight, or 5 to 15 parts by weight, based on 100 parts by weight of the total fragrance sheet. A sheet having excellent physical properties can be formed within such a numerical range. For example, if the moisture content is too low, the fragrance sheet may be easily crushed during the cutting process, and if too much moisture is added, the sheet may not be well formed or may become soft.

[0073] The flavored sheet and its manufacturing method according to some embodiments of the present disclosure have been described above with reference to Figures 1 and 2. As described above, a flavored sheet with improved (increased) surface roughness can be manufactured by blending a powdered substance into the sheet composition or adding a powdered substance during the manufacturing process. Since such a flavored sheet has a small effective area that can come into contact with other substances, it can be blended uniformly with the shredded tobacco material, and the workability of the blending process can also be improved.

[0074] Hereinafter, the smoking article 100 having improved flavor expression and flavor persistence due to inclusion of the flavored sheet described above will be described in detail with reference to FIG. 3 and subsequent figures.

[0075] FIG. 3 is a schematic illustration of a smoking article 100 according to some embodiments of the present disclosure.

[0076] As shown in Fig. 3, the smoking article 100 may include a filter portion 120, a smoking material portion 110, and a wrapper 130. However, Fig. 3 shows only components related to the embodiment 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 shown in Fig. 3. Also, since Fig. 3 only shows an example of a portion 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 differ from that shown in Fig. 3. Each component of the smoking article 100 will be described below.

[0077] The filter portion 120 can perform a filtering function for the smoke and / or aerosol generated by the smoking material portion 110. For this purpose, the filter portion 120 may include a filter (filter) material. Examples of the filter material include cellulose acetate fiber, paper, etc., but the scope of the present disclosure is not limited thereto. The filter portion 120 may further include a wrapper 130 that wraps the filter material (plug).

[0078] 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 also function as a mouthpiece that contacts the smoker's mouth.

[0079] 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 shapes, such as a cylindrical shape, a tube shape including a hollow inside, a recessed shape, and the like.

[0080] The smokable material portion 110 may then include a smokable substance that can be burned or heated to generate smoke and / or aerosol. The smokable material portion 110 may further include a wrapper 130 that encases the smokable substance.

[0081] As shown, the smoking 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 smoking material portion 110 by a puff may be delivered to the smoker's mouth through the filter portion 120.

[0082] The smoking material portion 110 is also manufactured in the form of a rod, and is therefore sometimes referred to as a "smoking material rod 110." Alternatively, the smoking material portion 110 may be referred to as a "medium portion 110."

[0083] The smoking material may include, for example, tobacco material. The tobacco material may include, for example, tobacco shreds, tobacco stems, or materials processed therefrom. More specifically, the tobacco material may include crushed tobacco leaves, crushed reconstituted tobacco, expanded shreds, expanded midribs, and tabular leaves. However, the tobacco material may be in the form of shreds (e.g., tobacco shreds, tabular leaves), sheets, powder, or tobacco extract, but is not limited thereto.

[0084] Also, as shown in the figure, a flavored sheet 10 can be applied (placed) on the smoking material portion 110. The flavored sheet 10 applied in this manner can increase the flavor release and flavor persistence of the smoking article 100 by continuously releasing a flavor during smoking. In other words, unlike when the flavor is added in a liquid form, the flavor fixed (covered) by the sheet forming agent is gradually and continuously released during smoking, effectively solving the problem of most of the flavor being released at the beginning of smoking. However, the specific application method of the flavored sheet 10 may vary.

[0085] In some embodiments, as shown in Fig. 4, the shredded pieces 11 of the flavored sheet 10 may be mixed with the shredded tobacco material 111 and then introduced into the smoking material section 110. As described above, the flavored sheet 10 with improved surface roughness has a small effective contact area and therefore may be mixed evenly with the shredded tobacco material 111, thereby ensuring a uniform flavor expression during smoking.

[0086] In some embodiments, the flavor sheet 10 may be attached to a sheet-type tobacco material (e.g., a reconstituted tobacco sheet such as a tabular tobacco sheet) or may be wound around the tobacco material and then inserted into the smoking material portion 110.

[0087] In some embodiments, a plurality of shredded tobacco materials may be introduced into the smoking material portion 110 in a form wrapped in the flavoring sheet 10 .

[0088] In some embodiments, the smoking material may further include additives such as humectants, flavorings, and / or organic acids. For example, the humectants may include at least one of glycerin, propylene glycol, ethylene glycol, dipropylene glycol, diethylene glycol, triethylene glycol, tetraethylene glycol, and oleyl alcohol. The humectants can maintain an appropriate level of moisture within the tobacco material to soften the inherent taste and provide a rich atomization volume. 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.

[0089] Next, the wrapper 130 may refer to one that wraps at least a portion of the smoking material portion 110 and / or the filter portion 120. The wrapper 130 may refer to an individual wrapper of the smoking material portion 110 or the filter portion 120, or may refer to a wrapper that wraps at least a portion of the smoking material portion 110 and the filter portion 120 together, such as a tipping wrapper, or may refer to all wrappers used in the smoking article 100. The wrapper 130 may be made of a porous or non-porous wrapping paper, but the scope of the present disclosure is not limited thereto. For example, the wrapper 130 may be made of a metal foil or a laminate of wrapping paper and metal foil.

[0090] Meanwhile, according to some embodiments of the present disclosure, the flavored sheet 10 may be applied to the wrapper 130. For example, the flavored sheet 10 may be disposed (e.g., attached (overlapped), coated) inside the wrapper 130 in a form in which the flavored sheet 10 wraps all or a part of the smoking material portion 110. When at least a part of the wrapper 130 is made of metal foil, the flavored sheet 10 may be disposed inside the metal foil. In this case, the flavored sheet 10 may be further promoted by heat transferred through the metal foil. As another example, the flavored sheet 10 may constitute at least a part of the wrapper 130. That is, the flavored sheet 10 itself may function as the wrapper 130 of the smoking article 100. In this case, the wrapper 130 may be constituted only by the flavored sheet 10, or may be constituted in a form in which the flavored sheet 10 and wrapping paper are integrated. In this case, since there is no need to perform a process of disposing the flavored sheet 10 on the wrapper 130 (e.g., attached (overlapped) process, coating process), the manufacturing process of the smoking article 100 can be further simplified.

[0091] Also, in some embodiments, the flavored sheet 10 may be disposed in a cooling section (not shown) having a hollow in a rolled or folded form. For example, the flavored sheet 10 may be disposed in a hollow of the cooling section (not shown) in a rolled or folded form, or disposed on the inner wall of the hollow of the cooling section (not shown). In this case, the flavored sheet 10 may be a punched sheet processed to have a plurality of holes formed therein, and the punched sheet has a large contact area with the airflow, so that the performance of the cooling section (not shown) can be further improved. For reference, the cooling section (not shown) may refer to a segment that is disposed between the smoking material section 110 and the filter section 120 and performs a cooling function for smoke and / or aerosol.

[0092] The smoking article 100 according to some embodiments of the present disclosure has been described above with reference to Figures 3 and 4. As described above, by applying the flavored sheet 10 to the smoking article 100, the flavor expression and flavor persistence of the smoking article 100 can be improved.

[0093] 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 implemented in other specific forms without changing its technical ideas or essential features. Therefore, it should be understood that the embodiments described above are illustrative in all respects and are not limiting. The scope of protection of the present disclosure should be interpreted according to the following claims, and all technical ideas within the scope equivalent thereto should be interpreted as being included in the scope of rights of the technical ideas defined by the present disclosure.

Claims

1. preparing a sheet composition by blending a hydrocolloid material, a solvent, a powdered material, and a fragrance; and drying the produced sheet composition. The step of drying the prepared sheet composition includes: applying the prepared sheet composition; adding a powdered material to the coated sheet composition and drying. A method for manufacturing a fragrance sheet.

2. A step of preparing a sheet composition by blending a hydrocolloid material, a solvent, a powdery material, and a fragrance; and drying the produced sheet composition. The sheet composition further comprises LM pectin (low methoxyl pectin), The LM pectin is a substance that contains less than 50% carboxyl groups and has the property of not gelling when left to cool. A method for manufacturing a fragrance sheet.

3. The method for producing a perfumed sheet according to claim 1 or 2, wherein the hydrocolloid material comprises a modified cellulose material.

4. The modified cellulosic material comprises: The method for producing a fragrance sheet according to claim 3, further comprising at least one substance selected from the group consisting of hydroxypropylmethylcellulose, methylcellulose, carboxymethylcellulose and ethylcellulose.

5. The method for producing a fragrance sheet according to claim 1 or 2, wherein the powdery substance is a substance that is poorly soluble or insoluble in the solvent.

6. the solvent is distilled water; The method for producing a fragrance sheet according to claim 1 or 2, wherein the powdery substance has a solubility in the distilled water at 25° C. of 100 mg / L or less.

7. The method for producing a fragrance sheet according to claim 1 or 2, wherein the powdery substance is a bulking agent.

8. The method for producing a perfumed sheet according to claim 7, wherein the powdery substance includes beta-cyclodextrin.

9. The method for producing a fragrance sheet according to claim 1 , wherein the powdery substance is an emulsifier.

10. The method for producing a perfumed sheet according to claim 9, wherein the emulsifier includes a sucrose ester.

11. The sheet composition further comprises LM pectin (low methoxyl pectin), The method for producing a fragrance sheet according to claim 1, wherein the LM pectin is a substance that contains less than 50% carboxyl groups and has the property of not gelling when left to cool.

12. The sheet composition further comprises a plasticizer; The method for producing a fragrance sheet according to claim 1 or 2, wherein the plasticizer includes at least one of glycerin and propylene glycol.

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