Patent Publication Number: US-2023136497-A1

Title: Flavor containing sheet comprising lm-pectin for smoking articles and smoking article comprising the same

Description:
TECHNICAL FIELD 
     One or more embodiments of the present disclosure relate to a fragrance-containing sheet including LM-pectin for smoking articles, and a smoking article including the same. 
     BACKGROUND ART 
     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, and thus stains tend to occur on the cigarette paper. In addition, there is a disadvantage in that the fragrance is weakened as smoking progresses. 
     DISCLOSURE 
     Technical Solution 
     One or more embodiments of the present disclosure provide a fragrance-containing sheet including LM-pectin for smoking articles, and a smoking article including the same. 
     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. 
     Advantageous Effects 
     The fragrance-containing sheet for smoking articles according to one or more embodiments of the present disclosure is excellent in at least one of viscosity characteristics, slurry formation characteristics, drying characteristics, sheet physical properties, and fragrance retention properties. 
     In addition, when manufacturing the fragrance-containing sheet for smoking articles, there is an advantage in that an emulsifier is not necessarily required. 
     Moreover, a smoking article including the fragrance-containing sheet for smoking articles has the advantage of having a good smoking taste. 
     Furthermore, a fragrance is consistently generated during smoking, thereby increasing the satisfaction of a consumer. 
     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. 
    
    
     
       DESCRIPTION OF DRAWINGS 
         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.  3 A  is a diagram illustrating a fragrance-containing sheet for smoking articles before being dried. 
         FIG.  3 B  is a diagram illustrating a fragrance-containing sheet for smoking articles 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. 
     
    
    
     BEST MODE 
     According to one aspect of the present disclosure, provided is a fragrance-containing sheet for smoking articles, the fragrance-containing sheet including moisture; thickening polysaccharide; low methoxyl pectin (LM-pectin); 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 LM-pectin. 
     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 LM-pectin. 
     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 consideration of the specification and the accompanying drawings of the present disclosure described herein. 
     Mode for Invention 
     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. 
     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, “LM-pectin (low methoxyl pectin)” refers to low ester pectin or low methoxyl pectin with relatively little esterification, more specifically pectin containing less than 50% of carboxyl groups in a molecular structure. Unlike carrageenan, LM-pectin does not gel when cooled at room temperature. 
     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 the filter element. 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 containing 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 manufacture 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, thickened polysaccharides, LM-pectin (low methyl pectin), and fragrance may be used. The slurry may further contain a bulking agent, an aerosol former, or an emulsifier. 
     The distilled water may be a factor that determines the viscosity of the slurry. 
     The thickened polysaccharide may be a polysaccharide material that serves to increase the viscosity of the slurry. The thickened polysaccharide may include, for example, at least one of agar, gellan gum, tamarind gum, konjac glucomannan, sylium seed gum, locust bean gum, guar gum, xanthan gum, tara gum, starch, and cassia gum. 
     LM-pectin is a low ester pectin or low methoxyl pectin with relatively little esterification, and specifically refers to a pectin containing less than about 50% of carboxyl groups in a molecular structure. Unlike carrageenan, LM-pectin does not gel when cooled at room temperature. For this reason, the slurry may have a relatively low viscosity (about 600 cp to about 800 cp). In addition, the slurry may be manufactured without necessarily including an emulsifier. 
     LM-pectin may 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 within the molecular structure. As content of the carboxyl groups in the molecular structure of LM-pectin decreases, viscosity of the slurry containing LM-pectin may decrease. 
     The bulking agent serves to increase a total mass (i.e., dry matter mass) of constituents other than the distilled water in the 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 slurry, and does not adversely affect a fragrance retention function of the fragrance-containing sheet. 
     The bulking agent may be starch, modified starch, or starch hydrolyzate. The modified starch refers to acetic acid starch, oxidized starch, hydroxypropyl phosphate distarch, hydroxypropyl phosphate, phosphate distarch, monolithic phosphate, phosphate diphosphate, and the like. 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 represents a degree of hydrolysis of starch, that is, a saccharification rate of starch. In the present disclosure, 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 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&#39;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, etc. 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 slurry may further contain an aerosol former or an emulsifier. The aerosol former may include, for example, at least one of glycerin and propylene glycol, and the emulsifier may be, for example, lecithin. 
     According to an embodiment, the fragrance-containing sheet for smoking articles may include, based on a total of 100 parts by weight, about 2 to about 15 parts by weight of moisture, about 1 to about 60 parts by weight of thickened polysaccharide, about 1 to about 60 parts by weight of LM-pectin, and about 0.1 to about 60 parts by weight of fragrance. 
     The fragrance-containing sheet for smoking articles may also include, based on a total of 100 parts by weight, about 0.1 to about 15 parts by weight of the aerosol former. 
       FIG.  3 A  is a diagram illustrating a fragrance-containing sheet  300  for smoking articles before being dried, and  FIG.  3 B  is a diagram illustrating a fragrance-containing sheet  400  for smoking articles after being dried. 
     Referring to  FIGS.  3 A and  3 B , the fragrance-containing sheet  300  before being dried may have a thickness d 1 . The fragrance-containing sheet  400  after being dried may have a thickness d 2 . The thickness dl of the fragrance-containing sheet  300  before being dried may be greater than the thickness d 2  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, embodiments and examples of manufacturing a fragrance-containing sheet for smoking articles will be described in detail. 
     EXAMPLE 1 
     1. Preparation of Slurry 
     In Example 1, 2.5 g of agar was added to 72.5 g of water and stirred at 95° C. Thereafter, 2.0 g of pectin was added and stirred, and 3 g of glycerin was added and cooled to 50° C. Then, 15 g of menthol was added and stirred to remove air bubbles. A finished slurry was maintained at a temperature of about 50° C. 
     In Comparative Examples 1-5, the slurry was prepared by changing a weight ratio of each component as shown in Table 1 below. 
     
       
         
           
               
               
               
               
               
               
               
             
               
                 TABLE 1 
               
               
                   
               
               
                   
                   
                 Comparative 
                 Comparative 
                 Comparative 
                 Comparative 
                 Comparative 
               
               
                 Division 
                 Example 1 
                 Example 1 
                 Example 2 
                 Example 3 
                 Example 4 
                 Example 5 
               
               
                   
               
             
            
               
                   
               
            
           
           
               
               
               
               
               
               
               
            
               
                 Agar 
                 2.5 
                 3 
                 3 
                 4 
                 — 
                 — 
               
               
                 Gellan gum 
                 — 
                 — 
                 — 
                 — 
                 2.5 
                 4 
               
               
                 LM-pectin 
                 2 
                 — 
                 — 
                 — 
                 — 
                 — 
               
               
                 Dextrin 
                 5 
                 5 
                 5 
                 5 
                 5 
                 5 
               
               
                 Lecithin 
                 — 
                 1 
                 — 
                 1 
                 1 
                 1 
               
               
                 L- menthol 
                 15 
                 15 
                 15  
                 15 
                 15 
                 15 
               
               
                 Glycerin 
                 3 
                 3 
                 3 
                 3 
                 3 
                 3 
               
               
                 Water 
                 72.5 
                 73 
                 74  
                 72 
                 73.5 
                 72 
               
               
                 Sum 
                 100 
                 100 
                 100  
                 100 
                 100 
                 100 
               
               
                   
               
            
           
         
       
     
     2. Manufacturing of a Fragrance-containing Sheet for Smoking Articles 
     The above-described slurry was dried to make a fragrance-containing sheet having a thickness of about 0.01 mm. A moisture content of the dried fragrance-containing sheet for smoking articles was within a range of about 2 to about 15 parts by weight. More specifically, moisture content was about 8 parts by weight. 
     &lt;Result Analysis&gt; 
     
       
         
           
               
               
               
               
               
               
               
             
               
                 TABLE 2 
               
               
                   
               
               
                   
                   
                 Comparative 
                 Comparative 
                 Comparative 
                 Comparative 
                 Comparative 
               
               
                 Division 
                 Example 1 
                 Example 1 
                 Example 2 
                 Example 3 
                 Example 4 
                 Example 5 
               
               
                   
               
             
            
               
                 Viscosity (Unit: cp) 
                 750 
                 620 
                 650 
                 — 
                 720 
                 — 
               
               
                 Slurry manufacturing 
                 ◯ 
                 ◯ 
                 β 
                 X 
                 β 
                 X 
               
               
                 ability 
               
               
                 Sheet manufacturing 
                 ◯ 
                 β 
                 β 
                 — 
                 β 
                 — 
               
               
                 ability (drying time) 
               
               
                 Sheet physical properties 
                 ◯ 
                 β 
                 X 
                 — 
                 X 
                 — 
               
               
                 Menthol content/reserve 
                 ◯ 
                 β 
                 X 
                 — 
                 X 
                 — 
               
               
                   
               
               
                 ◯: excellent, 
               
               
                 β: good, 
               
               
                 X: poor 
               
            
           
         
       
     
     As shown in Table 2, Example 1 was evaluated to be superior to 
     Comparative Example 1-5 in at least one of viscosity properties, slurry formation properties, drying properties, sheet physical properties, and fragrance retention properties. In addition, Example 1 was excellent in terms of an ability to prepare slurry and an ability to prepare a sheet, even without including an emulsifier. However, the embodiments may use the emulsifier. 
     Comparative Example 1 had good slurry formation, but the drying time was relatively long. After the drying process is completed, menthol content was relatively low and a retention time was relatively short. In Comparative Example 2, slurry stability was poor, so phase separation occurred over time and it was difficult to prepare a uniform sheet. In Comparative Example 3, slurry viscosity was high, making it difficult to manufacture a sheet. Comparative Example 4 had poor sheet manufacturing ability and the manufactured sheet had poor quality. Comparative Example 5 had a high viscosity of the slurry, making it difficult to manufacture a sheet. 
       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 along a longitudinal direction of the combustion-type cigarette  600 , and the fragrance-containing sheet includes LM-pectin. 
     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. 
     That is, the descriptions given above with respect to the fragrance-containing sheet for smoking articles may be equally applied to the combustion-type cigarette  600 . 
     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.