Woven fabric filter containing flavor sheet and smoking article containing same

Abstract

The present invention relates to a woven filter including a scented sheet and a smoking article including the same, and more specifically, to a woven filter including scented sheet fibers, the scented sheet fibers being fibers cut from a scented sheet, the scented sheet including a cellulose-based polymer, a plasticizer, and a scented substance, and a smoking article including the same.

Description

[Technical field]

[0001] The present invention relates to a fabric filter including a scented sheet and a smoking article including the same. [Background technology]

[0002] For heated stick products, heating using a dedicated device is essential to express the smoking taste of the medium (including tobacco raw materials such as hornwort and flavorings and aerosol products). In the case of dedicated heated stick devices developed so far to express the smoking taste, the temperature program is designed to allow high temperature heating considering the heat transfer to the inside of the medium. The heating temperature is usually at the level of 200℃~400℃, and unlike traditional cigarettes in which hornwort is burned and inhaled, when the stick of the medium is heated through the device, a large amount of water vapor is also generated. The temperature level generated inside the medium by heating is at the level of 100℃~200℃. The airflow temperature generated inside the medium is also similar, and if there is no cooling material downstream of the medium, the smoker will inhale hot air.

[0003] Previously developed cooling materials for heated sticks were polymeric materials (PLA, CA, PET, etc.) that can absorb heat and change phase in the airflow temperature range and are applied to the entire filter cross section in the form of fabric, etc. PLA was spun into threads and twisted into a fabric shape and used in products, but the cost of the material is very high and the amount that can be produced per hour is very small, making production efficiency low.

[0004] This has spurred active research into the development of cooling materials that could improve the economics and performance of new heating sticks. Summary of the Invention [Problem to be solved by the invention]

[0005] In order to solve the above-mentioned problems, the present invention provides a woven filter that enhances the cooling effect and flavor of a smoking article by applying a scented sheet having cooling and fragrance-releasing effects, while having production efficiency and price competitiveness.

[0006] The present invention provides a smoking article comprising a woven filter according to the present invention.

[0007] However, the problems that the present invention aims to solve are not limited to those mentioned above, and other problems not mentioned will be clearly understood by a person of ordinary skill in the art from the following description. [Means for solving the problem]

[0008] One embodiment of the present invention relates to a woven filter comprising scented sheet fibers, the scented sheet fibers being fibers cut from a scented sheet, the scented sheet containing a cellulose-based polymer, a plasticizer, and a scented substance.

[0009] According to an embodiment of the present invention, the cellulose-based polymer may be 20% to 60% by weight of the scented sheet.

[0010] According to an embodiment of the present invention, the plasticizer may be 1% to 20% by weight of the scented sheet.

[0011] According to an embodiment of the present invention, the scented substance may be 10% to 50% by weight of the scented sheet.

[0012] According to one embodiment of the present invention, the scented sheet may have a thickness of 1 mm or less.

[0013] According to one embodiment of the present invention, the tensile strength of the scented sheet may be 1.0 kgf / 15 mm or more.

[0014] According to one embodiment of the present invention, the cellulose may include at least one selected from the group consisting of methyl cellulose, ethyl cellulose, carboxymethyl cellulose, carboxyethyl cellulose, hydroxymethyl cellulose, hydroxyethyl cellulose, hydroxypropyl cellulose, hydroxypropyl methyl cellulose, hydroxyethyl methyl cellulose, and agar.

[0015] According to one embodiment of the present invention, the plasticizer may include at least one selected from the group consisting of propylene glycol, polyethylene glycol, dipropylene glycol, diethylene glycol, triethylene glycol, tetraethylene glycol, glycerin, and sorbitol.

[0016] According to one embodiment of the present invention, the diameter of the fibres may be less than 1 mm.

[0017] According to one embodiment of the present invention, there is provided a smoking article comprising a filter portion comprising a woven filter according to the present invention.

[0018] According to one embodiment of the present invention, the fabric filter may have a circumference of 14mm to 25mm and a length of 5mm to 20mm.

[0019] According to one embodiment of the present invention, the smoking article is a cigarette or an e-cigarette, and may be of the cigarette type.

[0020] According to one embodiment of the present invention, the filter section may include a first filter and a second filter including the fabric filter.

[0021] According to one embodiment of the present invention, the filter unit may include a first filter, a second filter including the woven fabric filter, and a third filter including a tube or paper tube filter; or a first filter, a second filter including a tube or paper tube filter, and a third filter including the woven fabric filter.

[0022] According to one embodiment of the present invention, the first filter may include fibers, filaments, or both including at least one of polymer, paper, cellulose acetate, activated carbon, and carbon. Effect of the Invention

[0023] The present invention can improve the taste and smoking taste persistence of tobacco by introducing aroma-added sheet fibers into the woven filter, providing an aroma release effect and improving the taste and smoking taste persistence of tobacco. For example, the aroma and / or flavor release is performed in the middle to latter half of the heated electronic cigarette by the woven filter, so that the taste and smoking taste persistence of tobacco can be improved. [Brief description of the drawings]

[0024] [Figure 1] 1 is a diagram illustrating a smoking article to which a fabric filter according to the present invention is applied, according to one embodiment of the present invention. [Diagram 2] 1 is a diagram illustrating a smoking article to which a fabric filter according to the present invention is applied, according to another embodiment of the present invention. [Diagram 3] 1 is a schematic diagram showing a smoking article to which a fabric filter according to the present invention is applied, according to still another embodiment of the present invention; DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0025] Hereinafter, the embodiments of the present invention will be described in detail with reference to the accompanying drawings. In describing the present invention, if it is determined that a detailed description of related known functions or configurations may unnecessarily obscure the gist of the present invention, the detailed description will be omitted. In addition, the terms used in this specification are terms used to appropriately express preferred embodiments of the present invention, and may vary depending on the intention of a user or operator, or customs in the field to which the present invention belongs. Therefore, the definitions of these terms should be based on the contents of the entire specification. The same reference numerals shown in each drawing indicate the same members.

[0026] Throughout this specification, when an element is said to be "on" another element, this includes not only when the element is in contact with the other element, but also when there is another element between the two elements.

[0027] Throughout the specification, when a part is said to "comprise" a certain element, this means that it can further include other elements, but not to the exclusion of other elements.

[0028] The woven filter and the smoking article including the woven filter of the present invention will be specifically described below with reference to examples and drawings, but the present invention is not limited to such examples and drawings.

[0029] The present invention relates to a woven filter for use in smoking articles, the woven filter comprising scented sheet fibers, the scented sheet fibers comprising fibers cut from a scented sheet.

[0030] According to one embodiment of the present invention, the scented sheet includes a cellulose-based polymer, a plasticizer, and a scented substance, and the scented sheet is a film-like sheet that retains the scented substance within the cellulose-based polymer, thereby improving the persistence of the aroma and / or tobacco taste transferred from the smoking product. Also, the cellulose-based polymer can provide an airflow cooling effect due to its characteristic of undergoing a phase change (crystallization) only at the temperature (high temperature) of the airflow moving from within the smoking article, for example, from within the stick to the smoker. Also, the scented sheet has high tensile strength and is flexible, and can be used as a component of a fibrous filter by itself without being coated on a base paper.

[0031] According to one embodiment of the present invention, the "smoking article" may refer to any product that can be smoked or any product that can provide a smoking experience, whether based on tobacco, tobacco derivatives, expanded tobacco, reconstituted tobacco, or tobacco substitutes. For example, the smoking article may refer to a smokable article that can generate aerosol, such as a cigarette, a cigar, a cigarillo, an electronic cigarette (e.g., a heat-type), and the like. The smoking article may include an aerosol-generating substance or an aerosol-forming substrate. The smoking article may also include a solid substance based on tobacco raw materials, such as tabular tobacco, hornwort, and reconstituted tobacco. Alternatively, the smoking substance may include a volatile compound.

[0032] According to one embodiment of the present invention, the cellulose-based polymer may be a binder material that can hold flavoring substances and provide a polymer matrix for forming a flexible sheet having high tensile strength. Furthermore, for example, it may be used together with a solvent (e.g., water) and alcohol that dissolves and / or disperses the components for forming a film and / or sheet. For example, it may include at least one selected from the group consisting of methyl cellulose, ethyl cellulose, carboxymethyl cellulose, carboxyethyl cellulose, hydroxymethyl cellulose, hydroxyethyl cellulose, hydroxypropyl cellulose, hydroxypropyl methyl cellulose, hydroxyethyl methyl cellulose, and agar, but is not limited thereto. Preferably, it may be methyl cellulose and hydroxypropyl methyl cellulose.

[0033] According to one embodiment of the present invention, the cellulose-based polymer is 20% by weight to 60% by weight; 20% by weight to 50% by weight; or 30% by weight to 40% by weight of the aromatized sheet. If the content of the cellulose-based polymer is less than 20% by weight, it may be difficult to obtain tensile strength and flexibility properties that are applicable as a component of a woven filter, or it may be difficult to produce the sheet itself. If the content of the cellulose-based polymer exceeds 60% by weight, the physical properties of the sheet may change (e.g., it may become brittle or crack), preventing the aroma and flavor from being expressed well in the aromatized substances in the sheet, and it may be difficult to enhance the taste of tobacco and the smoking taste persistence.

[0034] According to one embodiment of the present invention, the flavoring substance can impart flavor and / or aroma characteristics or enhance the flavor and taste, and can be applied without limitation as long as it is applicable to smoking articles, and for example, it can include at least one selected from the group consisting of organic acids such as lactic acid, citric acid, malic acid, etc., 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), and coffee, but is not limited thereto.

[0035] According to one embodiment of the present invention, the aroma substance is 10% to 50% by weight; 10% to 40% by weight; 10% to 30% by weight; or 10% to 20% by weight of the aroma sheet, and being within these ranges provides sustained aroma and / or tobacco flavor, allows for application in high concentrations, and makes it possible to adjust the intensity of the aroma and / or flavor.

[0036] According to an embodiment of the present invention, the plasticizer may include, but is not limited to, at least one selected from the group consisting of propylene glycol, polyethylene glycol, dipropylene glycol, diethylene glycol, triethylene glycol, tetraethylene glycol, glycerin, and sorbitol, and may preferably be propylene glycol and glycerin.

[0037] According to one embodiment of the present invention, the plasticizer is present in the scented sheet in an amount of 1 wt% to 20 wt%, 1 wt% to 15 wt%, 1 wt% to 10 wt%, or 5 wt% to 10 wt% in order to adjust the strength of the scented sheet. If the plasticizer content is less than 1 wt%, it may be difficult to obtain tensile strength characteristics suitable for use as a component of a woven filter, and if the plasticizer content exceeds 20 wt%, the physical properties of the sheet may become poor (e.g., the tensile strength may be low or it may become too soft) and it may become prone to tearing, making it difficult to use or manufacture the scented sheet fiber for a woven filter.

[0038] According to one embodiment of the present invention, the scented sheet has a thickness of 1 mm or less; 0.1 mm to 1 mm; or 0.5 mm to 0.8 mm, and the scented sheet can be cut to form scented sheet fibers. If the scented sheet is thicker than 1 mm, the flexible properties of the sheet cannot be properly realized, making it difficult to manufacture it as a woven filter, and the increased thickness may result in poor expression of aroma and flavor, or if it is too thin, it may be difficult to obtain a cooling effect.

[0039] According to one embodiment of the present invention, the scented sheet has a tensile strength that can be used as a component of a woven filter for a smoking article, for example, the tensile strength of the scented sheet may be 1.0 kgf / 15 mm or more, 2.0 kgf / 15 mm or more, 5.0 kgf / 15 mm or more, or 1.0 kgf / 15 mm to 10 kgf / 15 mm. When the tensile strength falls within the above range, it is possible to obtain a scented sheet that has a good balance of strength and flexibility properties that can be used as scented sheet fibers for woven filters for smoking articles.

[0040] According to one embodiment of the present invention, the average diameter (i.e., thickness) of the scented sheet fiber may be 1 mm or less; 0.1 mm to 1 mm; or 0.5 mm to 0.8 mm. If the average diameter of the scented sheet fiber exceeds 1 mm, it may be difficult to realize the flexible characteristics and to manufacture it into a woven filter, and the increased thickness may prevent the expression of the aroma and flavor, or if it is too thin, it may be difficult to obtain a cooling effect.

[0041] According to one embodiment of the present invention, the shape, thickness, length, etc. of the woven filter may be changed depending on the smoking article to which it is applied, without departing from the purpose of the present invention. For example, when applied to a cigarette or electronic cigarette stick, the woven filter may have a diameter of 4.5 mm to 8 mm; a circumference of 14 mm to 25 mm; and a length of 5 mm to 20 mm.

[0042] The present invention relates to a smoking article comprising a textile filter according to the present invention.

[0043] According to one embodiment of the present invention, the smoking article includes a filter section and a smoking material section, and a woven filter using the scented sheet fiber according to the present invention is introduced to provide a cooling and aroma releasing effect, and the filter section includes the woven filter. For example, the filter section may be a mono-filter, a double filter, or a triple filter. In addition, the filter section may include at least one of a porous matrix structure, a tube structure, and a paper tube structure.

[0044] According to one embodiment of the present invention, the dual filter may include a first filter and a second filter including a woven filter according to the present invention. According to one embodiment of the present invention, the triple filter may include a first filter, a second filter including a woven filter according to the present invention, and a third filter including a tube or paper tube filter; or may include a first filter, a second filter including a tube filter or a paper tube filter, and a third filter including a woven filter according to the present invention. For example, the first filter may be located in a direction approaching the smoker from the heated tobacco stick (downstream direction), and the second filter and the third filter may be located in order in a direction away from the smoker (upstream direction).

[0045] According to an embodiment of the present invention, the woven filter includes a scented sheet fiber, and the scented sheet fiber may include fibers cut from the scented sheet. According to an embodiment of the present invention, the scented sheet includes a cellulose-based polymer, a plasticizer, and a scented substance, and the scented sheet is a film-like sheet that retains the scented substance within the cellulose-based polymer, thereby improving the persistence of the aroma and / or tobacco taste transferred from the smoking product. In addition, the cellulose-based polymer can provide an airflow cooling effect due to its characteristic of undergoing a phase change (crystallization) only at the temperature (high temperature) of the airflow moving from within the smoking article, for example, from within the stick to the smoker. In addition, the scented sheet has high tensile strength and is flexible, and can be used as a component of the fibrous filter itself without being coated on a base paper.

[0046] According to one embodiment of the present invention, the cellulose-based polymer is a binder material that can retain flavoring substances and provides a polymer matrix for forming a flexible sheet having high tensile strength, and may include, but is not limited to, at least one selected from the group consisting of methyl cellulose, ethyl cellulose, carboxymethyl cellulose, carboxyethyl cellulose, hydroxymethyl cellulose, hydroxyethyl cellulose, hydroxypropyl cellulose, hydroxypropyl methyl cellulose, hydroxyethyl methyl cellulose, and agar. Preferably, it may be methyl cellulose or hydroxypropyl methyl cellulose.

[0047] According to one embodiment of the present invention, the cellulose-based polymer is 20% by weight to 60% by weight; 20% by weight to 50% by weight; or 30% by weight to 40% by weight of the aromatized sheet. If the content of the cellulose-based polymer is less than 20% by weight, it may be difficult to obtain tensile strength and flexibility properties that are applicable as a component of a woven filter, or it may be difficult to produce the sheet itself. If the content of the cellulose-based polymer exceeds 60% by weight, the physical properties of the sheet may change (e.g., it may become brittle or crack), preventing the aroma and flavor from being expressed well in the aromatized substances in the sheet, and it may be difficult to enhance the taste of tobacco and the smoking taste persistence.

[0048] According to one embodiment of the present invention, the flavoring substance can impart flavor and / or aroma characteristics or enhance the flavor and taste, and can be applied without limitation as long as it is applicable to smoking articles, and for example, it can include at least one selected from the group consisting of organic acids such as lactic acid, citric acid, malic acid, etc., 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), and coffee, but is not limited thereto.

[0049] According to one embodiment of the present invention, the fragrance substance is present in the fragrance sheet in an amount of 10% to 50% by weight; 10% to 40% by weight; 10% to 30% by weight; or 10% to 20% by weight. When the fragrance substance is present within the above ranges, it provides a lasting fragrance and / or tobacco flavor, allows for application in high concentrations, and makes it possible to adjust the intensity of the fragrance and / or flavor.

[0050] According to an embodiment of the present invention, the plasticizer may include, but is not limited to, at least one selected from the group consisting of propylene glycol, polyethylene glycol, dipropylene glycol, diethylene glycol, triethylene glycol, tetraethylene glycol, glycerin, and sorbitol, and may preferably be propylene glycol and glycerin.

[0051] According to one embodiment of the present invention, the plasticizer is present in an amount of 1 wt% to 20 wt%; 1 wt% to 15 wt%; 1 wt% to 10 wt%; or 5 wt% to 10 wt% of the scented sheet in order to adjust the strength of the scented sheet. If the plasticizer content is less than 1 wt%, it may be difficult to obtain tensile strength characteristics suitable for use as a component of a woven filter, and if the plasticizer content exceeds 20 wt%, the physical properties of the sheet may become poor (e.g., the tensile strength may be low or it may become too soft) and it may become easily torn, making it difficult to use or manufacture the scented sheet fiber for a woven filter.

[0052] According to one embodiment of the present invention, the scented sheet has a thickness of 1 mm or less; 0.1 mm to 1 mm; or 0.5 mm to 0.8 mm, and the scented sheet can be cut to form scented sheet fibers. If the scented sheet is thicker than 1 mm, the flexible properties of the sheet cannot be properly realized, making it difficult to manufacture it as a woven filter, and the increased thickness may result in poor expression of aroma and flavor, or if it is too thin, it may be difficult to obtain a cooling effect.

[0053] According to one embodiment of the present invention, the scented sheet has a tensile strength that can be used as a component of a woven filter for a smoking article, for example, the tensile strength of the scented sheet may be 1.0 kgf / 15 mm or more, 2.0 kgf / 15 mm or more, 5.0 kgf / 15 mm or more, or 1.0 kgf / 15 mm to 10 kgf / 15 mm. When the tensile strength falls within the above range, it is possible to obtain a scented sheet that has a good balance of strength and flexibility properties that can be used as scented sheet fibers for woven filters for smoking articles.

[0054] According to one embodiment of the present invention, the average diameter (i.e., thickness) of the scented sheet fiber may be 1 mm or less; 0.1 mm to 1 mm; or 0.5 mm to 0.8 mm. If the average diameter of the scented sheet fiber exceeds 1 mm, it may be difficult to realize the flexible characteristics and to manufacture it into a woven filter, and the increased thickness may prevent the expression of the aroma and flavor, or if it is too thin, it may be difficult to obtain a cooling effect.

[0055] According to one embodiment of the present invention, the scented sheet fiber can be manufactured into a woven filter by a commonly known weaving or manufacturing method so that it can be applied to a woven filter of a smoking article, and no specific reference is made in this document.

[0056] According to one embodiment of the present invention, the first filter may be made of a filter tow known in the art, for example, but not limited to, a filter tow including at least one of polymer, paper, cellulose acetate, activated carbon, and carbon, in a fibrous or filamentary form, or both. Also, the tube filter may include, but is not limited to, a polymer material such as PLA (Poly Lactic Acid), CA (Cellulose acetate), PET (Poly (ethylene terephthalate)), etc.

[0057] According to one embodiment of the present invention, the smoking material portion may include tobacco raw materials such as hornwort, smoking flavor, and aerosol-forming substrate, and may be configured according to the type of smoking article, which will not be specifically mentioned in this document.

[0058] According to one embodiment of the present invention, the smoking article may have a diameter of 4mm to 10mm, a circumference of 14mm to 29mm, and a length of 45mm to 100mm.

[0059] 1 to 3, according to an embodiment of the present invention, the smoking article may be a cigarette or an electronic cigarette, and may be a cigarette type. That is, a scented sheet may be introduced to provide an airflow cooling effect and a scent and / or flavor to enhance the taste of the tobacco and the smoking taste persistence.

[0060] According to one embodiment of the present invention, referring to FIG. 1, the smoking article is a double filter and includes a first filter section 110, a second filter section 120 including a fabric filter according to the present invention, and a smoking material section 130, and is capable of releasing flavor and / or aroma by a flavoring sheet while cooling the airflow flowing from the smoking material section 130 along the airflow direction.

[0061] According to an embodiment of the present invention, the first filter portion 110 and the second filter portion 120 each have a length selected from 5 mm to 20 mm; or 10 mm to 15 mm.

[0062] According to one embodiment of the present invention, the length of the smoking material portion 130 may be between 15mm and 75mm.

[0063] According to one embodiment of the present invention, and referring to FIG. 2, the smoking article may be a triple filter, including a first filter 210, a second filter 220 including a tube filter or a paper tube filter, and a third filter 230 including the woven fabric filter.

[0064] According to one embodiment of the present invention, the length of the first filter section 210, the second filter section 220, the third filter section 230, and the smoking material section 240 is selected from the range of 5 mm to 20 mm; or 10 mm to 15 mm, and the length of the third filter section 230 may be shorter.

[0065] According to one embodiment of the present invention, and referring to FIG. 3, the smoking article may be a triple filter, including a first filter 310, a second filter 320 including the fabric filter, and a third filter 330 including a tube or paper tube filter.

[0066] According to one embodiment of the present invention, the lengths of the first filter section 310, the second filter section 320, the third filter section 330 and the smoking material section 340 are each selected from the range of 10 mm to 20 mm; or 10 mm to 15 mm, and the second filter section 320 may have the shortest length.

[0067] Although the embodiments have been described above with limited examples and drawings, those skilled in the art may make various modifications and variations from the above description. For example, the described techniques may be performed in a different order than described, and / or the described components may be combined or combined in a different manner than described, or may be replaced or substituted with other components or equivalents, while still achieving suitable results. Accordingly, other implementations, other embodiments, and equivalents to the claims are within the scope of the following claims. (Other possible items) (Item 1) A woven filter comprising: scented sheet fibers, the scented sheet fibers being fibers cut from a scented sheet, the scented sheet containing a cellulose-based polymer, a plasticizer, and a scenting substance. (Item 2) 2. The fabric filter according to item 1, wherein the cellulose polymer accounts for 20% by weight to 60% by weight of the scented sheet, and the cellulose includes at least one selected from the group consisting of methyl cellulose, ethyl cellulose, carboxymethyl cellulose, carboxyethyl cellulose, hydroxymethyl cellulose, hydroxyethyl cellulose, hydroxypropyl cellulose, hydroxypropyl methyl cellulose, hydroxyethyl methyl cellulose, and agar. (Item 3) Item 2. The fabric filter according to item 1, wherein the plasticizer accounts for 1% by weight to 20% by weight of the scented sheet, and the plasticizer includes at least one selected from the group consisting of propylene glycol, polyethylene glycol, dipropylene glycol, diethylene glycol, triethylene glycol, tetraethylene glycol, glycerin, and sorbitol. (Item 4) 2. The fabric filter according to item 1, wherein the scented substance accounts for 10% by weight to 50% by weight of the scented sheet. (Item 5) 2. The fabric filter according to item 1, wherein the scented sheet has a thickness of 1 mm or less. (Item 6) Item 2. The fabric filter according to item 1, wherein the scented sheet has a tensile strength of 1.0 kgf / 15 mm or more. (Item 7) Item 2. The fabric filter according to item 1, wherein the fibers have a diameter of 1 mm or less. (Item 8) A smoking article comprising: a filter portion comprising the woven filter of item 1. (Item 9) Item 9. The smoking article according to item 8, wherein the woven filter has a circumference of 14 mm to 25 mm and a length of 5 mm to 20 mm. (Item 10) 9. The smoking article according to item 8, wherein the smoking article is a cigarette or an e-cigarette and is of the cigarette type. (Item 11) 9. The smoking article according to item 8, wherein the filter portion comprises a first filter and a second filter comprising the woven filter. (Item 12) 9. The smoking article according to item 8, wherein the filter section comprises a first filter, a second filter comprising the woven filter, and a third filter comprising a tube or paper tube filter; or a first filter, a second filter comprising a tube or paper tube filter, and a third filter comprising the woven filter. (Item 13) Item 13. The smoking article of item 11 or 12, wherein the first filter is fibrous, filamentary, or both, including at least one of polymer, paper, cellulose acetate, activated carbon, and carbon.

Claims

1. Fragrant sheet fiber, Including, The scented sheet fiber is a fiber cut from a scented sheet, The scented sheet contains a cellulose-based polymer, a plasticizer, and a scenting substance, The diameter of the fiber is 0.5 mm to 0.8 mm; Woven fabric filter.

2. The cellulose polymer accounts for 20% by weight to 60% by weight of the scented sheet, The cellulose-based polymer includes at least one selected from the group consisting of methyl cellulose, ethyl cellulose, carboxymethyl cellulose, carboxyethyl cellulose, hydroxymethyl cellulose, hydroxyethyl cellulose, hydroxypropyl cellulose, hydroxypropyl methyl cellulose, hydroxyethyl methyl cellulose, and agar. The fabric filter of claim 1.

3. The plasticizer accounts for 1% by weight to 20% by weight of the scented sheet, The plasticizer includes at least one selected from the group consisting of propylene glycol, polyethylene glycol, dipropylene glycol, diethylene glycol, triethylene glycol, tetraethylene glycol, glycerin, and sorbitol. The fabric filter of claim 1.

4. The fragrance material is The scented sheet contains 10% by weight to 50% by weight. The fabric filter of claim 1.

5. The thickness of the scented sheet is 1 mm or less, The fabric filter of claim 1.

6. The tensile strength of the scented sheet is 1.0 kgf / 15 mm or more. The fabric filter of claim 1.

7. A filter portion comprising the woven filter of claim 1; Including, Smoking articles.

8. The woven filter comprises: having a circumference of 14 mm to 25 mm and a length of 5 mm to 20 mm; 8. The smoking article of claim 7.

9. The smoking article is a tobacco or e-cigarette, which is of the cigarette type; 8. The smoking article of claim 7.

10. The filter portion is a first filter; and a second filter comprising said woven filter; It includes, 8. The smoking article of claim 7.

11. The first filter comprises: A fiber, filament, or both containing at least one of polymer, paper, cellulose acetate, activated carbon, and carbon; The smoking article of claim 10.

12. The filter portion is a first filter, a second filter comprising said woven filter, and a third filter comprising a tube or paper tube filter; or a first filter, a second filter comprising a tube or paper tube filter, and a third filter comprising said woven fabric filter; It includes, 8. The smoking article of claim 7.

13. The first filter comprises: A fiber, filament, or both containing at least one of polymer, paper, cellulose acetate, activated carbon, and carbon; 13. The smoking article of claim 12.

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