WO2022045518A1

WO2022045518A1 - Flavor containing sheet comprising modified cellulose and smoking article comprising the same

Info

Publication number: WO2022045518A1
Application number: PCT/KR2021/005018
Authority: WO
Inventors: Ick Joong KIM; Kyung Bin Jung; Eun Mi Jeoung
Original assignee: KT&G Corp
Current assignee: KT&G Corp
Priority date: 2020-08-25
Filing date: 2021-04-21
Publication date: 2022-03-03
Anticipated expiration: 2023-02-25
Also published as: JP7664988B2; KR102560124B1; CN114521109A; JP2023171941A; US20220295870A1; KR20220026430A; EP3986170A1; CN114521109B; EP3986170A4; JP7362760B2; JP2022550227A

Abstract

Provided are: a fragrance-containing sheet for smoking articles, which includes moisture, modified cellulose, and fragrance such that fragrance can be dissolved at room temperature without a heating process; and a smoking article including the same.

Description

FLAVOR CONTAINING SHEET COMPRISING MODIFIED CELLULOSE AND SMOKING ARTICLE COMPRISING THE SAME

One or more embodiments of the present disclosure relate to a fragrance-containing sheet for smoking articles, and a smoking article including the same.

In order to generate a specific fragrance from a smoking article, a method of adding a fragrance component in a solution state to a cigarette has been employed. This method has an advantage in that the fragrance component may be easily applied to the cigarette by spraying a fragrance solution. However, if an amount of fragrance is increased to release more fragrance during smoking, an amount of solvent also has to increase, which often makes stains on the cigarette paper. In addition, there is a disadvantage in that the fragrance is weakened as smoking progresses.

One or more embodiments of the present disclosure are provided to overcome the limitations of the existing technology described above.

Embodiments of the present disclosure are not limited thereto. It is to be appreciated that other embodiments will be apparent to those skilled in the art from a consideration of the specification or practice of the present disclosure described herein.

According to one or more embodiments of the present disclosure, modified cellulose and fragrance may be dissolved in the slurry of the fragrance-containing sheet for smoking articles at room temperature. Therefore, when manufacturing the fragrance-containing sheet for smoking articles, a separate heating process for dissolution may not be included.

According to one or more embodiments of the present disclosure, the fragrance-containing sheet for smoking articles may be easily manufactured without using a separate emulsifier.

The fragrance-containing sheet for smoking articles according to one or more embodiments of the present disclosure may be improved in at least one of viscosity characteristics, slurry formation characteristics, drying characteristics, sheet physical properties, and fragrance retention properties.

When using the smoking article according to one or more embodiments of the present disclosure, a smoking taste may be improved.

A fragrance is consistently generated during smoking, thereby increasing satisfaction of a consumer.

FIG. 1 is a schematic diagram illustrating a configuration of a smoking article, according to an embodiment.

FIG. 2 is a schematic diagram illustrating a configuration of a smoking article, according to another embodiment.

FIG. 3A is a diagram illustrating a fragrance-containing sheet before being dried.

FIG. 3B is a diagram illustrating a fragrance-containing sheet after being dried.

FIG. 4 is a diagram illustrating a cross-section of a first portion of a smoking article.

FIG. 5 is a schematic diagram illustrating a configuration of a combustion-type cigarette.

According to one aspect of the present disclosure, a fragrance-containing sheet for smoking articles may include: moisture; modified cellulose; and fragrance.

According to another aspect of the present disclosure, a smoking article includes: a first portion including a tobacco material and a fragrance-containing sheet; and a second portion including a filter element, wherein the first portion and the second portion are arranged in series along a longitudinal direction of the smoking article, and the fragrance-containing sheet includes modified cellulose.

According to another aspect of the present disclosure, a combustion-type cigarette includes: a first segment including a tobacco material and a fragrance-containing sheet; and a second segment including a filter element, wherein the first segment and the second segment are arranged in series along a longitudinal direction of the combustion-type cigarette, and the fragrance-containing sheet includes modified cellulose.

Additional aspects will be set forth in part in the description which follows and, in part, will be apparent from the description, or may be learned by the practice of the presented embodiments.

With respect to the terms used to describe the various embodiments, general terms which are currently and widely used are selected in consideration of functions of structural elements in the various embodiments of the present disclosure. However, meanings of the terms can be changed according to intention, a judicial precedence, the appearance of new technology, and the like. In addition, in certain cases, a term which is not commonly used can be selected. In such a case, the meaning of the term will be described in detail at the corresponding portion in the description of the present disclosure. Therefore, the terms used in the various embodiments of the present disclosure should be defined based on the meanings of the terms and the descriptions provided herein.

In addition, unless explicitly described to the contrary, the word "comprise" and variations such as "comprises" or "comprising" will be understood to imply the inclusion of stated elements but not the exclusion of any other elements. Terms such as "unit", "module", and the like described in the present specification refer to a unit that processes at least one function or operation, which may be implemented in hardware or software, or a combination of hardware and software.

Throughout the specification, a "smoking article" refers to an article used to smoke. For example, the smoking article may be a general combustion-type cigarette that is ignited and combusted, or the smoking article may be a heating-type cigarette that generates an aerosol when inserted in and heated by an aerosol generating device. As another example, the smoking article may be an article used in a manner in which a liquid contained in a cartridge is heated.

Throughout the specification, a "tobacco element" refers to an element including a tobacco material.

Throughout the specification, a "tobacco material" refers to any type of material including components obtained from tobacco leaves.

Throughout the specification, a "cooling element" refers to an element that cools a substance. For example, the cooling element may cool an aerosol generated from the tobacco element.

Throughout the specification, a "filter element" refers to an element including a filter material. For example, the filter element may include a plurality of fiber strands.

Throughout the specification, a "longitudinal direction of a smoking article" refers to a lengthwise direction of the smoking article or a direction in which the smoking article is inserted into the aerosol generating device.

Throughout the specification, "thickening polysaccharide" refers to a polysaccharide material that increases viscosity.

Throughout the specification, "modified cellulose" refers to cellulose in which a specific functional group is substituted within a molecular structure. For example, in the case of hydroxypropyl methyl cellulose (HPMC), the modified cellulose may have a grade within a range of 4 to 40000, according to molecular weight and a degree of substitution by the hydroxypropyl group and methyl group (or methoxy group). Viscosity of the modified cellulose may be determined according to a grade.

More specifically, physicochemical properties of HPMC are related to i) the proportion of the methoxy group, ii) the proportion of the hydroxypropyl group, and iii) the molecular weight. According to the United States Pharmacopeia (USP), types of HPMC may be classified into HPMC1828, HPMC2208, HPMC2906, and HPMC2910 according to the proportion of methoxy group and hydroxypropyl group. Here, the first two numbers refer to the proportion of the methoxy group, and the rest two numbers refer to the proportion of the hydroxypropyl group.

Hereinafter, the present disclosure will be described in detail with reference to the accompanying drawings, in which embodiments of the present disclosure are shown such that those skilled in the art may easily work the present disclosure. However, the present disclosure may be implemented in various different forms and is not limited to the embodiments described herein.

Hereinafter, embodiments of the present disclosure will be described in detail with reference to the accompanying drawings.

FIG. 1 is a schematic diagram illustrating a configuration of a smoking article 100, according to an embodiment.

The smoking article 100 may include a first portion 110 including a tobacco element, and a second element 120 including a filter element.

Referring to FIG.1, the first portion 110 and the second portion 120 may be arranged in series along a longitudinal direction of the smoking article 100. Here, the longitudinal direction of the smoking article 100 may be a direction in which a length of the smoking article 100 extends. For example, the longitudinal direction of the smoking article 100 may be a direction in which the first portion 110 and the second portion 120 are arranged.

The first portion 110 may include the tobacco element. The tobacco element may be a specific type of tobacco material. For example, the tobacco element may have the form of tobacco cut fillers, tobacco particles, tobacco sheets, tobacco beads, tobacco granules, or tobacco extracts. In addition, the tobacco material may include, for example, one or more of tobacco leaves, tobacco side veins, puffed tobacco, cut fillers, leaf tobacco cut fillers, and reconstituted tobacco.

The second portion 120 may include a single segment of filter elements. The filter element may be a cellulose acetate filter. There are no limitations on a shape of the filter element. For example, the filter element may be a cylindrical rod or a tubular rod including a hollow therein. Alternatively, the filter element may be a recessed rod.

The second portion 120 may be manufactured to generate flavor. As an example, a fragrance liquid may be sprayed onto the second portion 120, or a separate fiber coated with the fragrance liquid may be inserted into the second portion 120.

In addition, the second portion 120 may include at least one capsule 130. Here, the capsule 130 may serve to generate flavor, or may serve to generate an aerosol. For example, the capsule 130 may have a structure in which a liquid containing fragrance is wrapped with a film. The capsule 130 may have a spherical or cylindrical shape, but is not limited thereto.

The second portion 120 may also include a plurality of segments. The present embodiment will be described in greater detail with reference to FIG. 1.

The second portion 120 may include a filter element 123, and may further include a cooling element 121.

The cooling element 121 may cool an airflow passing through the first portion 110 from the outside of the smoking article 100. The cooling element 121 may be formed of a paper material, and may be a cylindrical paper tube including a hollow therein. In addition, the cooling element 121 may be made of a polymer material or a biodegradable polymer material, and may have a cooling function. For example, the cooling element 121 may be made of polylactic acid (PLA) fibers, but is not limited thereto. In addition, the cooling element 121 may be made of a cellulose acetate filter having a plurality of holes. However, the cooling element 121 is not necessarily limited to the above-described example, and embodiments of the present disclosure may include any material that performs a function of cooling the airflow. Alternatively, the cooling element 121 may be a tube filter or a paper tube including a hollow therein.

In addition, although not illustrated in FIG. 1, the smoking article 100 may further include a plug (not shown). The plug may be arranged at a distal end of the smoking article 100. For example, the plug may be arranged at the distal end of the smoking article 100 adjacent to the first portion 110. The plug may serve to properly regulate an overall length of the smoking article 100. In addition, when the smoking article 100 is inserted into an aerosol generating device (not shown), the plug may serve to regulate the first portion 110 to be arranged at an appropriate position within the aerosol generating device.

The smoking article 100 may include at least one wrapper 140. For example, the smoking article 100 may include a first wrapper surrounding the first portion 110, and a second wrapper surrounding the second portion 120. The smoking article 100 may also include a third wrapper surrounding the first portion 110 and the second portion 120 completely. The smoking article 100 may also include a fourth wrapper surrounding the second portion 120. The fourth wrapper may, generally, serve as a tip paper.

At least one of the first to fourth wrappers may be a biodegradable wrapper. When a biodegradable wrapper is used, the smoking article 100 may be rapidly decomposed by microorganisms, and thus environmental pollution may be reduced.

FIG. 2 is a schematic diagram illustrating a smoking article 200, according to another embodiment.

Referring to FIG. 2, the smoking article 200 may include a first portion 210 and a second portion 220. The second portion 220 may include a filter element. Descriptions given above with respect to the second portion 120 of FIG. 1 may be equally applied to the second portion 220 of FIG. 2.

Referring to FIG. 2, the first portion 210 may be divided into two compartments. The first portion 210 may include an aerosol generating substrate 211 and a nicotine generating substrate 213.

The aerosol generating substrate 211 may include, for example, crimped paper impregnated with an aerosol generating material. The aerosol generating material (or aerosol former) may include, for example, at least one of glycerin, propylene glycol, ethylene glycol, dipropylene glycol, diethylene glycol, triethylene glycol, tetraethylene glycol, and oleyl alcohol.

The nicotine generating substrate 213 may include, for example, tobacco cut fillers, tobacco particles, tobacco sheets, tobacco beads, or tobacco granules. As another example, the nicotine generating substrate 213 may include crimped paper impregnated with tobacco extracts. When the nicotine generating substrate 213 is heated, nicotine may be generated from the nicotine generating substrate 213 and be transferred to the second portion 220.

The second portion 220 may include a plurality of segments. For example, the second portion 220 may include a filter element 223, and may further include a cooling element 221.

The descriptions given above with respect to the cooling element 121 and the filter element 123 of FIG. 1 may be equally applied to the cooling element 221 and the filer element 223 of FIG. 2. Therefore, redundant descriptions thereof will be omitted.

The fragrance-containing sheet for smoking articles according to one or more embodiments of the present disclosure may be included within the

first portion

110 and 210, or the

second portion

120 and 220 of the

smoking article

100 and 200 shown in FIGS. 1 and 2.

In order to prepare the fragrance-containing sheet for smoking articles according to one or more embodiments of the present disclosure, a slurry (or crude liquid) including distilled water, alcohol, modified cellulose and fragrance may be used. The slurry may further contain at least one of a bulking agent, an aerosol former, and an emulsifier.

The slurry may include about 1 wt% to about 80 wt% of alcohol. As such, the modified cellulose may be better dissolved.

More specifically, distilled water and alcohol may be mixed in a weight ratio of about 1:1 to about 10:1 in the slurry. Preferably, distilled water and alcohol may be mixed in a weight ratio of about 2.33:1. As such, the modified cellulose may be better dissolved.

Distilled water may be a factor that determines viscosity of the slurry.

Alcohol may be utilized as a solvent. The alcohol may be, for example, ethanol. When ethanol is included in the slurry, modified cellulose such as HPMC, methyl cellulose (MC), carboxymethyl cellulose (CMC), or ethyl cellulose (EC), and fragrance components such as L-menthol may be well dissolved in the slurry at room temperature.

The modified cellulose may be cellulose in which a specific functional group is substituted in a molecular structure. The modified cellulose may be, for example, hydroxypropyl methyl cellulose (HPMC), methyl cellulose (MC), carboxymethyl cellulose (CMC), or ethyl cellulose (EC). Hydroxypropyl methyl cellulose may have a grade within a range of about 4 to about 40000 depending on a degree of substitution by a hydroxypropyl group and a methyl group (or methoxy group). Viscosity of hydroxypropyl methyl cellulose may be determined depending on a grade.

The modified cellulose may be, for example, AN6, AN15, AN50, BN10, BN50, MC15, or MC50, which are product names of Lotte Fine Chemicals.

In experiments where MC15 or MC50 (cellulose with a methyl group substituent) are used as the modified cellulose, viscosity characteristics, slurry formation characteristics, drying characteristics, sheet physical properties, and fragrance retention properties of the fragrance-containing sheet have been confirmed to be excellent. In that case, the fragrance-containing sheet for smoking articles may have a viscosity in a range of about 100 cp to about 10,000 cp when preparing the slurry.

The fragrance may include, for example, menthol, leaf tobacco extracts, natural botanical fragrance (e.g., cinnamon, sage, herbs, chamomile, reeds, persimmon tea, cloves, 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, St. John's bread, plum extract, peach extract, etc.), sugars (e.g., glucose, fructose, isomer sugar, caramel, etc.), cocoa (powder, extract, etc.), esters (e.g., isoamyl acetate, linalyl acetate, isoamyl propionate, linalyl butyrate, etc.), ketones (e.g., menthone, ionone, damasenone, ethyl maltol, etc.), alcohol classes (e.g., geraniol, linalol, anetol, eugenol, etc.), aldehydes (e.g., vanillin, benzaldehyde, anisaldehyde, etc.), lactones (e.g., γ-undecalactone), γ-nonalactone, etc.), animal flavors (e.g., musk, amber lys, civet, castrium, etc.), hydrocarbons (e.g., limonene, pinene, etc.).

The fragrance may be used in a solid state, or may be dissolved or dispersed in an appropriate solvent such as propylene glycol, ethyl alcohol, benzyl alcohol, or triethyl citrate. In addition, fragrances that are easily dispersed in a solvent by the addition of an emulsifier, for example, hydrophobic fragrances, oil soluble fragrances, and the like may be used. These fragrances may be used alone or as a mixture. However, embodiments of the present disclosure are not necessarily limited thereto, and embodiments of the present disclosure may include any fragrances used in the smoking article.

The bulking agent serves to increase a total mass (i.e., dry matter mass) of constituents other than the water in the raw material slurry, thereby increasing a volume of the fragrance-containing sheet to be produced. The bulking agent only serves to increase the volume of the fragrance-containing sheet and does not affect an original function of the fragrance-containing sheet. More specifically, the bulking agent does not substantially increase the viscosity of the raw material slurry, and does not adversely affect a fragrance retention function of the fragrance-containing sheet.

The bulking agent may be starch or starch hydrolyzate. The starch hydrolyzate refers to a substance obtained by a process of hydrolyzing starch. The starch hydrolyzate is, for example, a substance obtained by directly hydrolyzing starch (i.e., dextrin), or a substance obtained by hydrolyzing starch after heat treatment (i.e., indigestible dextrin). The bulking agent may be, for example, dextrin, and more specifically, cyclodextrin.

The starch hydrolyzate may, generally, be a starch hydrolyzate having a dextrose equivalent (DE) value within a range of about 2 to about 40, and preferably a starch hydrolyzate having a DE value within a range of about 2 to about 20. As a starch hydrolyzate having a DE value within a range of about 2 to about 20, for example, Finedex #100 (Matsutani Chemical Industries Co., Ltd.), Fine Fiber (Matsutani Chemical Industries Co., Ltd.), or TK -16 (Matsutani Chemical Industry Co., Ltd.) may be used.

The DE value may represent a degree of hydrolysis of starch, that is, a saccharification rate of starch. The DE value may be measured by a Willstatter-Schudel method. The DE value is measured, as a specific value, by the Willstatter-Schudel method. Properties of the hydrolyzed starch (i.e., starch hydrolyzate), such as a molecular weight of the starch hydrolyzate or an arrangement of sugar molecules constituting the starch hydrolyzate, are not identical among the molecules of the starch hydrolyzate, and may differ according to a certain distribution or variations. The starch hydrolyzate exhibits different physical properties (for example, DE value) for each molecule due to the distribution and variations of the properties of the starch hydrolyzate, a difference in the cut section, or the like. As described above, the starch hydrolyzate is a set of molecules representing different physical properties, but a result (i.e., DE value) measured by the Willstatter-Schudel method is regarded as a representative value indicating a degree of hydrolysis of starch.

Preferably, the starch hydrolyzate may be selected from the group consisting of dextrin having a DE value of about 2 to about 5, indigestible dextrin having a DE value of about 10 to about 15, and a mixture thereof. As dextrin having a DE value of about 2 to about 5, for example, Finedex #100 (Masutani Chemical Industries Co., Ltd.) may be used. As indigestible dextrin having a DE value of about 10 to about 15, for example, fine fiber (Matsutani Chemical Co., Ltd.) may be used.

The fragrance-containing sheet may contain, based on a total of 100 parts by weight, about 2 parts to about 15 parts by weight of moisture, about 25 parts to about 90 parts by weight of modified cellulose, and about 0.1 parts to about 60 parts by weight of fragrance.

The slurry may further contain at least one of a bulking agent, an aerosol former, and an emulsifier. As described above, the bulking agent may be, for example, dextrin, the aerosol former may be, for example, at least one of glycerin and propylene glycol, and the emulsifier may be, for example, lecithin.

FIG. 3A is a diagram illustrating a fragrance-containing sheet 300 before being dried, and FIG. 3B is a diagram illustrating a fragrance-containing sheet 400 after being dried.

Referring to FIGS. 3A and 3B, the fragrance-containing sheet 300 before being dried may have a thickness d1. The fragrance-containing sheet 400 after being dried may have a thickness d2. The thickness d1 of the fragrance-containing sheet 300 before being dried may be greater than the thickness d2 of the fragrance-containing sheet 400 after being dried. As an example, the fragrance-containing sheet 300 before being dried may have a thickness of about 0.2 mm to about 2.0 mm, and the fragrance-containing sheet 400 after being dried may have a thickness of about 0.01 mm to about 0.3 mm. The above-described difference in thickness may be derived from a difference in moisture content due to drying.

FIG. 4 is diagram illustrating a cross-section of a first portion 500 of a smoking article, according to an embodiment.

For example, FIG. 4 may be a cross-sectional view of the first portion of the smoking article of FIG. 1.

Referring to FIG. 4, the first portion 500 may include a tobacco material 511 and a fragrance-containing sheet 513. The tobacco material 511 may be, for example, in the form of a tobacco sheet such as leaf tobacco cut fillers. Alternatively, the tobacco material 511 may be a tobacco sheet impregnated with an aerosol generating material or the like.

When the first portion 500 is combusted or heated, an aerosol may be generated from the tobacco material 511, and a fragrance component volatilized from the fragrance-containing sheet 513 may move along with the aerosol.

Hereinafter, advantages in the manufacture of the fragrance-containing sheet for smoking articles will be described in detail.

In general, when a slurry is prepared using a polysaccharide material such as agar, gelatin, gellan gum, etc., the manufacturing process may include the following operations: (1) heating water to about 80 °C to about 100 °C; (2) adding and dissolving agar, gelatin, or gellan gum; (3) cooling down to about 60 °C; and (4) adding a fragrance component such as menthol and the like.

In operation (3) above, the slurry is required to be maintained at about 60 °C in a storage tank, a transfer line, an application nozzle, and the like.

In addition, since fragrance components such as menthol are not soluble in water, there is a need to use an emulsifier.

According to one or more embodiments of the present disclosure, the slurry of the fragrance-containing sheet for smoking articles may include modified cellulose (e.g., HPMC, MC, CMC, or EC) having a grade within a specific numerical range. In addition, the slurry of the fragrance-containing sheet for smoking articles may contain, for example, distilled water, ethanol, dextrin, glycerin, and menthol. In that case, dextrin and glycerin may be dissolved in distilled water at room temperature, and the menthol and modified cellulose (e.g., HPMC, MC, CMC, or EC) may be dissolved in ethanol at room temperature.

The slurry of the fragrance-containing sheet for smoking articles according to one or more embodiments of the present disclosure includes a relatively small amount of distilled water and at least a certain amount of alcohol. As such, there is an advantage in that drying time is relatively short.

When preparing the slurry of the fragrance-containing sheet for smoking articles according to one or more embodiments of the present disclosure, the manufacturing process may include the following operations: (1) dissolving menthol in ethanol, and adding and dispersing modified cellulose (e.g., HPMC, MC, CMC, or EC); (2) adding distilled water; and (3) adding a fragrance component. As such, a process of separately heating the slurry is not required, and accordingly there is no need to maintain the temperature in the storage tank, the transfer line, the application nozzle, and the like. In addition, the slurry need not necessarily contain an emulsifier.

Table 1 below shows a content proportion of each component of the fragrance-containing sheet for smoking articles according to an embodiment. Ethanol was all evaporated while the slurry was dried.

	Modified cellulose (e.g., HPMC, MC, CMC, or EC)	Menthol	Moisture	Propylene glycol	Sum
Content (wt%)	52.6	29.8	7.0	10.5	100

The produced fragrance-containing sheet for smoking articles was excellent in at least one of viscosity characteristics, slurry formation characteristics, drying characteristics, sheet physical properties, and fragrance retention properties. FIG. 5 is a schematic diagram illustrating a configuration of a combustion-type cigarette 600.According to an embodiment, the combustion-type cigarette 600 includes: a first segment 610 including a tobacco material and a fragrance-containing sheet; and a second segment 620 including a filter element. The first segment 610 and the second segment 620 are arranged in series along a longitudinal direction of the combustion-type cigarette 600, and the fragrance-containing sheet includes modified cellulose.

The first segment 610 may be ignited by a user. As the first segment 610 is ignited, fragrance generated from the fragrance-containing sheet may flow into the second segment 620 along with cigarette smoke.

The descriptions given above with respect to the fragrance-containing sheet for smoking articles and the smoking article may be equally applied to the combustion-type cigarette 600 according to another aspect of the present disclosure.

Those of ordinary skill in the art related to the present embodiments may understand that various changes in form and details can be made therein without departing from the scope of the characteristics described above. The disclosed methods should be considered in a descriptive sense only and not for purposes of limitation. Therefore, the scope of the disclosure should be defined by the appended claims, and all differences within the scope equivalent to those described in the claims will be construed as being included in the scope of protection defined by the claims.

Claims

A fragrance-containing sheet for smoking articles, comprising:

moisture;

modified cellulose; and

fragrance.
The fragrance-containing sheet for smoking articles of claim 1, wherein, based on a total of 100 parts by weight, the moisture is 2 to 15 parts by weight, the modified cellulose is 25 to 90 parts by weight, and the fragrance is 0.1 to 60 parts by weight.
The fragrance-containing sheet for smoking articles of claim 1, wherein the modified cellulose is hydroxypropyl methyl cellulose (HPMC), methyl cellulose (MC), carboxymethyl cellulose (CMC), or ethyl cellulose (EC).
The fragrance-containing sheet for smoking articles of claim 1, further comprising a bulking agent.
The fragrance-containing sheet for smoking articles of claim 1, further comprising an aerosol former or an emulsifier.
The fragrance-containing sheet for smoking articles of claim 1, wherein the fragrance-containing sheet contains 1 wt% to 80 wt% of alcohol before being dried.
The fragrance-containing sheet for smoking articles of claim 1, wherein the fragrance-containing sheet has a thickness of 0.01 mm to 0.3 mm.
A smoking article comprising:

a first portion comprising a tobacco material and a fragrance-containing sheet; and

a second portion comprising a filter element,

wherein the first portion and the second portion are arranged in series along a longitudinal direction of the smoking article, and

wherein the fragrance-containing sheet comprises modified cellulose.
The smoking article of claim 8, wherein the fragrance-containing sheet contains, based on a total of 100 parts by weight, 2 to 15 parts by weight of moisture, 25 to 90 parts by weight of the modified cellulose, and 0.1 to 60 parts by weight of fragrance.
The smoking article of claim 8, wherein the modified cellulose is hydroxypropyl methyl cellulose (HPMC), methyl cellulose (MC), carboxymethyl cellulose (CMC), or ethyl cellulose (EC).
The smoking article of claim 8, wherein the fragrance-containing sheet further comprises a bulking agent.
The smoking article of claim 8, wherein the fragrance-containing sheet further comprises an aerosol former or an emulsifier.
The smoking article of claim 8, wherein the fragrance-containing sheet has a thickness of 0.01 mm to 0.3 mm.
A combustion-type cigarette comprising:

a first segment comprising a tobacco material and a fragrance-containing sheet; and

a second segment comprising a filter element,

wherein the first segment and the second segment are arranged in series along a longitudinal direction of the combustion-type cigarette, and

wherein the fragrance-containing sheet comprises modified cellulose.