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WO2023218713A1 - Filtre, article à fumer et procédé de réduction de la quantité de composants spécifiques inclus dans un écoulement de fumée ou un aérosol - Google Patents

Filtre, article à fumer et procédé de réduction de la quantité de composants spécifiques inclus dans un écoulement de fumée ou un aérosol Download PDF

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Publication number
WO2023218713A1
WO2023218713A1 PCT/JP2023/004484 JP2023004484W WO2023218713A1 WO 2023218713 A1 WO2023218713 A1 WO 2023218713A1 JP 2023004484 W JP2023004484 W JP 2023004484W WO 2023218713 A1 WO2023218713 A1 WO 2023218713A1
Authority
WO
WIPO (PCT)
Prior art keywords
filter
capsule
smoking article
liquid
tobacco
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2023/004484
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English (en)
Japanese (ja)
Inventor
裕介 七崎
悠加 西
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Japan Tobacco Inc
Original Assignee
Japan Tobacco Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Japan Tobacco Inc filed Critical Japan Tobacco Inc
Publication of WO2023218713A1 publication Critical patent/WO2023218713A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D3/00—Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
    • A24D3/04—Tobacco smoke filters characterised by their shape or structure
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D3/00—Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
    • A24D3/17—Filters specially adapted for simulated smoking devices

Definitions

  • the present invention relates to filters, smoking articles, and methods for reducing specific components contained in smoke or aerosols.
  • the filter of smoking articles such as filtered cigarettes
  • liquid such as water or an aqueous solution containing additives related to flavor
  • the liquid is mounted in the filter body in the form of a capsule, and before smoking, the user destroys the capsule to eject the liquid from the capsule and impregnate the filter.
  • Patent Document 1 discloses a filter equipped with a capsule as described above, which has a side wall forming a cylindrical side surface and a pair of end walls that close the front and rear openings of the cylindrical shape, and has a liquid inside.
  • the capsule includes a capsule that is enclosed, and at least the side wall is elastically deformable, and includes at least one linear main thin area provided along the axial direction on the side wall, and a storage space for accommodating the capsule.
  • a filter is disclosed that includes a generally cylindrical filter body formed of a substantially cylindrical filter body.
  • the capsule has a side wall forming a side surface of a cylindrical shape, and a pair of end walls that close the front and rear openings of the cylindrical shape, the side wall being elastically deformable, and the side wall having a thin wall.
  • a smoking article comprising the filter and tobacco filler according to any one of [1] to [4].
  • a method for reducing specific components contained in a smoke stream or aerosol emitted from a smoking article comprising: The method comprising the step of contacting the smoke stream or aerosol with a liquid.
  • the smoking article is the smoking article according to any one of [5] to [8], The contacting step destroying at least a portion of the capsule to cause the liquid to eject from within the capsule and permeate into the filter body; The method according to [9], further comprising the step of passing through the main body.
  • the method according to [9] or [10] wherein the specific component includes benzopyrene, formaldehyde, or a mixture thereof.
  • the filter of the present invention can reduce certain components contained in smoke streams or aerosols emitted from smoking articles.
  • FIG. 1A is a diagram showing a case where a filter equipped with a capsule is employed in a cigarette as a smoking article.
  • FIG. 1B is a diagram showing a capsule mounted on the filter of FIG. 1A taken out.
  • FIG. 2 is a diagram schematically showing how an external force is applied to the filter shown in FIG. 1A.
  • FIG. 3 is a diagram showing an example of improvement of the filter shown in FIG. 1A.
  • FIG. 4 is a diagram showing a case where a discontinuous portion is provided in the thin wall region of the filter shown in FIG. 1A.
  • FIG. 5A is a diagram showing a case where a filter equipped with a capsule according to the first embodiment is employed in a cigarette as a smoking article.
  • FIG. 5B is a diagram showing a capsule mounted on the filter of FIG. 5A taken out.
  • FIG. 6 is a diagram schematically showing a situation when an external force is applied to the filter shown in FIG. 5A.
  • FIG. 7 is a diagram showing an example of improvement of the filter shown in FIG. 5A.
  • FIG. 8 is a diagram showing a modification of the filter shown in FIG. 5A together with a cigarette employing the filter of the modification.
  • FIG. 9 is a schematic cross-sectional view showing an example of a non-combustion heating type smoking system.
  • FIG. 10 is a schematic cross-sectional view showing an example of a non-combustion heating type smoking article.
  • the filter of the present invention is a capsule, and a substantially cylindrical filter body including a storage space for storing the capsule, A liquid is sealed inside the capsule, The content of the liquid per capsule is 10 mg or more.
  • the capsule may have a side wall forming a cylindrical side surface and a pair of end walls that close the front and rear openings of the cylindrical shape, respectively.
  • the side wall of the capsule may be elastically deformable and may include a thinned area.
  • the liquid content per capsule is 10 mg or more, and can also be 10 to 20 mg, 50 to 90 mg, or 100 to 200 mg. When the liquid content per capsule is within the above numerical range, specific components contained in the smoke stream or aerosol can be reduced more efficiently.
  • the pH of the liquid is not particularly limited, but is preferably 6.8 or less, and can also be 5.0 to 6.0 or 4.0 to 4.5. When the pH of the liquid is within the above numerical range, specific components contained in the smoke stream or aerosol can be reduced more efficiently.
  • the above-mentioned liquid is not particularly limited, but water, polyol, or a mixture thereof can be used.
  • the liquid may contain one or more of the above compounds, or may be composed of one or more of the above compounds.
  • the content of water in the liquid is not particularly limited, but is preferably 5% by mass or more, and can also be 10 to 50% by mass or 55 to 100% by mass.
  • the content of water in the liquid is within the above numerical range, specific components contained in the smoke stream or aerosol can be reduced more efficiently.
  • the number of capsules included in the filter is not particularly limited, but may be 1 to 2, 3 to 10, or 20 to 1000. By setting the number of capsules included in the filter within the above numerical range, a certain specific component can be reduced regardless of the number of times of smoking.
  • the method for manufacturing the filter is not particularly limited, but it can be manufactured based on the conventionally known acetate filter method or dual filter method.
  • the smoking article of the present invention comprises the above-mentioned 1. Contains the filters and tobacco fillers mentioned in section .
  • the tobacco filling refers to a material to be filled with processed tobacco leaves, which will be described later, in a predetermined manner.
  • the "material to be filled” is the object to be filled with processed tobacco leaves, and is a part of the tobacco product.
  • Examples of the material to be filled include, but are not limited to, a cylindrical wrapping paper, a container having an air inlet and an air outlet, and the like.
  • the processed tobacco leaves are filled into the filling material by wrapping the material with wrapping paper so that the processed tobacco leaves are on the inside (hereinafter also referred to as "tobacco rod”).
  • Examples include, but are not limited to, a mode in which processed tobacco leaves are filled into a channel of a container having an air inlet and an air outlet (hereinafter also referred to as a "tobacco cartridge"). It never happens.
  • a tobacco filler As a tobacco filler, a tobacco filler (hereinafter also referred to as "first tobacco filler") made up of shredded tobacco filled into a stuffed material, and a tobacco made up of tobacco sheets filled into a stuffed stuff. Examples include a filler (hereinafter also referred to as “second tobacco filler”), a tobacco filler consisting of tobacco granules filled in a filling material (hereinafter also referred to as "third tobacco filler”), etc. It will be done.
  • first tobacco filler made up of shredded tobacco filled into a stuffed material
  • second tobacco filler a filler consisting of tobacco granules filled in a filling material
  • tobacco leaves is a general term for harvested tobacco leaves before undergoing ripening as described below. Note that one aspect of aging includes curing. On the other hand, aged tobacco leaves that have not yet been processed into the various forms used in tobacco products (tobacco shreds, tobacco sheets, tobacco granules, etc. to be described later) are referred to as “aged tobacco leaves”. ”. Furthermore, aged tobacco leaves that have been processed into various forms used in tobacco products are referred to as “processed tobacco leaves.”
  • Examples of the form of processed tobacco leaves used in tobacco products include “chopped tobacco,” which is obtained by chopping aged tobacco leaves into predetermined sizes.
  • tobacco sheets obtained by forming a composition containing aged tobacco leaves crushed into a predetermined particle size (hereinafter also referred to as “tobacco fine powder”) into a sheet shape
  • tobacco granules obtained by molding into granules can also be mentioned. Note that the above-mentioned “fine tobacco powder” is also a form of processed tobacco leaf.
  • the type of processed tobacco leaf contained in the tobacco filling is not particularly limited, but may be dark fire cured (DFC), other fire cured, or two of these types. Mixtures of the above can be used. Among these, from the viewpoint of imparting a smoky flavor, it is preferable that the tobacco filler contains processed tobacco leaves of dark-colored fireboshi seeds.
  • Smoking articles can be broadly classified into combustible smoking articles, typified by conventional cigarettes, and non-combustible smoking articles.
  • combustion-type smoking articles are tobacco products that involve combustion, they tend to generate specific components such as benzopyrene, which will be described later. Due to its influence, it has a fairly high diffusivity. Without being bound by theory, in the present invention, contact of the smoke stream or aerosol with a liquid such as water causes a rapid temperature drop, suppresses the diffusivity of specific components, and allows specific components to be absorbed into the liquid. It can be assumed that this is captured by
  • FIG. 1A shows a case where a filter equipped with a capsule is employed in a cigarette CG as a smoking article.
  • FIG. 1B shows the capsule CA-1 taken out from the filter FL-1 included in the cigarette CG.
  • a filter-equipped cigarette CG is constructed by disposing a filter FL-1 at one end of a cigarette main body 100, which is a rod-shaped cigarette body 100 made by wrapping shredded tobacco in thin paper.
  • This filter FL-1 includes a filter main body formed by two rod-shaped filter elements 202 and 203 inside a flexible casing 201. It is glued and formed into a cylindrical shape.
  • the cigarette main body 100 and the filter FL-1 are connected via a tip paper 101 disposed so as to cover both of them, thereby forming one filter-equipped cigarette CG.
  • a first filter section 202 serving as a first filter element and a second filter section 203 serving as a second filter element are arranged at both ends and spaced apart from each other.
  • the filter parts 202 and 203 may be made of the same material as the filter material used in ordinary filtered cigarettes, that is, acetate fibers, and may also contain charcoal. Alternatively, a paper filter or the like can also be used.
  • the materials of the filter parts 202 and 203 may be the same or different.
  • a first filter section 202 located at one end of the casing 201 serves as a cigarette side, and a second filter section 203 located at the other end constitutes a mouthpiece.
  • the first filter section 202 and the second filter section 203 are arranged apart from each other as described above, and the space between them is the storage space 204. Strictly speaking, the first filter section 202 and the second filter section 203 are arranged apart from each other, and the space between them is the storage space 204.
  • the filter body includes a storage space 204.
  • a capsule CA-1 is housed inside the storage space 204.
  • the capsule CA-1 has a generally hollow cylindrical shape (column shape), and a liquid is sealed inside the capsule CA-1. More specifically, the capsule CA-1 has a side wall 10 forming a cylindrical side surface and a pair of end walls 11 and 12 that close the front and rear openings of the cylindrical shape, and a liquid is sealed inside. .
  • the side wall 10 is made of at least an elastically deformable synthetic material.
  • the end walls 11 and 12 may also be made of the same material, but there is no need for any particular limitation as long as the material can reliably close the opening of the cylindrical side wall 10.
  • a suitable synthetic material for constructing the side wall 10 is, for example, a food grade plastic material selected from the group consisting of polyethylene, polypropylene, polyvinyl chloride, polystyrene, polyethylene terephthalate, polyvinyl alcohol and polyamide. is desirable.
  • the end walls 11 and 12 may be made of the same material as the side walls, but they may also be made of a film material such as a laminate film and the openings may be closed by heat sealing. When such a sealing film is employed, it may be adhered to the opening edge of the side wall using a thermoplastic adhesive.
  • a hot melt adhesive whose main ingredients are adhesive polyolefin resin, low molecular weight polyethylene, and EVA (ethylene vinyl alcohol) can be used.
  • the liquid to be sealed in the capsule CA-1 may be appropriately selected from those that can improve the smoking taste of the cigarette, and is not particularly limited. Any gender flavor can be used. In the case of hydrophobic flavors, they may be blended in an emulsified state, or a solvent such as propylene glycol or ethanol may be used. More specifically, as the liquid, for example, a solution in which sugar, tobacco extract, fragrance, etc. are dissolved in water, or a water-based solution such as brandy can be employed. Further, if necessary, a chemical solution for preventing deterioration may be mixed.
  • the liquid may be a fine solid such as a microcapsule (fragrance capsule) containing a fragrance, or the liquid may be in the form of the fragrance capsule suspended in an aqueous liquid.
  • the casing 201 and the tip paper 101 be made of a sheet material having a water-resistant function to have a structure that prevents the liquid from leaking to the outer periphery.
  • the filter FL-1 used in this cigarette CG is equipped with a capsule CA-1 that easily breaks when subjected to an external force from the user (such as a force such as pinching the filter part with one's fingers).
  • the filter FL-1 has a rod shape (approximately cylindrical shape) corresponding to the cigarette body 100, and the capsule CA-1 is arranged in the storage space 204 between the filter parts 202 and 203. Then, as shown by arrow F in FIG. 1A, an external force is applied by the action of pinching the filter in the radial direction.
  • the side wall 10 has an easy-to-destruct structure so that it can be easily destroyed when the capsule CA-1 is subjected to this external force, specifically, it is provided with a thin-walled area, which will be described later.
  • the thin region is a region formed thinner than other regions in order to be more easily broken than other regions subjected to stress, and is, for example, a groove portion formed as a V-shaped groove.
  • the side wall 10 of the capsule CA-1 illustrated in FIGS. 1A and B has at least one annular main thin-walled area 10a that is annular along the circumferential direction and provided in a linear manner (in FIGS. 1A and B). 4) It is provided.
  • the cylindrical capsule CA-1 is set in the space 204 in a lying position.
  • the direction in which the annular thin area 10a extends is parallel to the direction in which the external force F is applied when the filter FL-1 is pinched in the radial direction.
  • FIG. 2 is a diagram schematically showing the state when external force F is applied to capsule CA-1.
  • Main thin-walled regions 10a (four in the example) are provided on the side wall 10 of the capsule CA-1 in parallel to the direction in which the external force F acts. If such a main thin-walled region 10a is provided, deformation progresses when external force is applied, and when the stress at the bent portion 13, where stress is concentrated due to bending, exceeds a certain level, the main thin-walled region 10a breaks as shown in the figure.
  • the external force F acts, the pressure inside the capsule CA-1 increases, so that a force is also generated in the capsule CA-1 in a direction extending perpendicular to the external force F. Therefore, the main thin area 10a that is parallel to the external force F is easily broken.
  • FIG. 3 shows an improved example in which a linear sub-thin area 10b is further provided in a direction perpendicular to the annular main thin area 10a. While the main thin area 10a is annular, the sub thin area 10b is linear extending in the direction of the axis CL perpendicular to the circumferential direction in which the main thin area 10a is formed.
  • the capsule CA-1 can be structured to be more easily destroyed.
  • the main thin area 10a and the linear sub-thin area 10b do not necessarily have to be continuous linear areas. That is, it may be formed discontinuously, including a portion (discontinuous portion) in which no thin-walled region is provided.
  • FIG. 4 illustrates a case where a discontinuous portion 14 is provided in the annular main thin area 10a.
  • a discontinuous portion may be formed in the same manner in the case of the configuration including the main thin area 10a and the sub thin area 10b shown in FIG. In this case, either the main thin area 10a or the sub-thin area 10b may be used, or both may be used.
  • there is no limitation to the form of discontinuity for example, it may be in the form of regular broken lines, or it may be in the form of broken lines with irregular break positions.
  • FIG. 5A shows an example in which the filter FL-2 is applied to a cigarette CG.
  • FIG. 5B shows the capsule CA-2 mounted on the filter FL-2 taken out.
  • At least one linear main thin region 10c is provided along the axis CL direction (perpendicular to the circumferential direction) of the side wall 10 having a cylindrical shape. It is something.
  • the cylindrical capsule CA-2 is set in the space 204 in a standing position. Thereby, the direction in which the linear thin region 10c extends is parallel to the direction in which the external force is applied when the external force F is applied to the filter FL by a radial pinching motion.
  • FIG. 6 is a diagram schematically showing the state when external force F is applied to capsule CA-2.
  • the side wall 10 of the capsule CA-2 is provided with the main thin area 10c parallel to the direction in which the external force F acts. If such a main thin area 10c is provided, deformation progresses by applying external force, and when the stress exceeds a certain level, the main thin area 10c bends the most and breaks at the bent portion 13 where stress is concentrated, as shown in the figure.
  • the external force F acts, the pressure inside the capsule CA-2 increases, so that a force is also generated in the capsule CA-2 in a direction extending perpendicular to the external force F. Therefore, the main thin region 10c parallel to the external force F is easily broken.
  • the position of the capsule CA-2 within the storage space 204 is visible.
  • the casing 201 that includes the storage space 204 and covers the filter main body is made of a transparent sheet material so that the storage space 204 can be visually recognized.
  • the chip paper 101 covering the outside thereof is also made of a transparent sheet material.
  • the user can confirm the position of the capsule CA-2 and crush it.
  • the characters such as ⁇ PUSH'' may be attached, or if this is too small to read, some kind of landmark (such as red or blue on the side to be pressed) may be added. It is desirable to add a color (e.g. in color).
  • FIG. 7 shows an improved example in which an annular sub-thin area 10d is further provided in a direction perpendicular to the linear main thin area 10c.
  • the main thin area 10c has a linear shape extending in the direction of the axis CL
  • the sub thin area 10d has an annular shape.
  • the capsule CA-2 can be structured to be more easily destroyed.
  • the main thin area 10c and the annular sub-thin area 10d do not necessarily have to be continuous linear areas. That is, as described above, it may have a discontinuous form including a discontinuous portion.
  • the capsule CA-2 illustrated in FIGS. 5A and 5B has a cylindrical shape with an annular thin area on its side wall 10, and is set in an upright position.
  • the capsule CA-2 is not limited to a cylindrical shape, and may be, for example, a prismatic capsule CA-3 (here, a square prism (rectangular parallelepiped)) as shown in FIG. By making it a prismatic shape, the posture within the storage space 204 can be stabilized. In this case, thin areas 10c are formed on the four side walls.
  • a capsule CA-3 is arranged in the storage space 204 so that the axial direction and the side walls are parallel, it will become the front and rear, left and right side walls, but the present invention is not limited to this. It may be placed in the storage space 204 in a standing position such that it protrudes.
  • the fibers used for the filter element may be used to stabilize the position within the storage space 204 as necessary. The gaps may be filled to prevent misalignment.
  • a structure may be adopted in which a positioning protrusion is added to the inner surface of the casing 201, and the capsule CA is held and positioned by the protrusion from the periphery.
  • the first filter section and the second filter section are not necessarily required.
  • the space formed between the first filter part and the second filter part is used as a storage space within the filter main body part.
  • this is a preferred example, and the form of the storage space is not limited to this.
  • Non-combustion heated smoking article may be heated by a heating device that is separate from the article, or may be heated by a heating device that is integrated with the article.
  • the non-combustion heating type smoking article and the heating device are collectively referred to as a "non-combustion heating type smoking system.”
  • An example of a non-combustion heating smoking system will be described below with reference to FIGS. 9 and 10.
  • FIG. 9 is a schematic cross-sectional view showing an example of a non-combustion heating type smoking system, and shows a state before the heater 32 is inserted into the smoking segment 40A of the non-combustion heating type smoking article 40. In use, heater 32 is inserted into smoking segment 40A.
  • FIG. 10 is a cross-sectional view of a non-combustion heated smoking article 40. As shown in FIG.
  • the non-combustion heating smoking system includes a non-combustion heating smoking article 40 and a heating device 30 that heats the smoking segment 40A from the inside.
  • the non-combustion heating type smoking system is not limited to the configuration shown in FIG.
  • the heating device 30 shown in FIG. 9 includes a body 31 and a heater 32.
  • the body 31 may include a battery unit and a control unit.
  • Heater 32 can be an electrical resistance heater and is inserted into smoking segment 40A to heat smoking segment 40A.
  • the smoking segment 40A is heated from the inside, but the embodiment of the non-combustion heated smoking article 40 is not limited to this, and in another embodiment, the smoking segment 40A is heated from the outside.
  • the heating temperature by the heating device 30 is not particularly limited, but is preferably 400°C or less, more preferably 50 to 400°C, and even more preferably 150 to 350°C.
  • the heating temperature refers to the temperature of the heater 32 of the heating device 30.
  • the heating method using the heating device is not particularly limited, and in addition to the heating using the heater described above, induction heating, microwave heating, etc. can be adopted.
  • the non-combustion heating type smoking article 40 (hereinafter simply referred to as "smoking article 40") has a cylindrical shape.
  • the length of the circumference of the smoking article 40 is preferably 16 mm to 27 mm, more preferably 20 mm to 26 mm, and even more preferably 21 mm to 25 mm.
  • the total length (horizontal length) of the smoking article 40 is not particularly limited, but is preferably 40 mm to 90 mm, more preferably 50 mm to 75 mm, and even more preferably 50 mm to 60 mm.
  • the smoking article 40 is composed of a smoking segment 40A, a filter portion 40C forming a mouthpiece, and a connecting portion 40B connecting these.
  • the smoking segment 40A has a cylindrical shape, and its total length (length in the axial direction) is, for example, preferably 5 to 100 mm, more preferably 10 to 50 mm, and preferably 10 to 25 mm. More preferred.
  • the cross-sectional shape of the smoking segment 40A is not particularly limited, but may be, for example, circular, oval, polygonal, or the like.
  • the smoking segment 40A has a smoking composition sheet or material 41 derived therefrom, and a wrapper 42 wrapped around it.
  • the filter section 40C has a cylindrical shape.
  • the filter section 40C has a rod-shaped first segment 45 filled with cellulose acetate acetate fibers and a rod-shaped second segment 46 filled with cellulose acetate acetate fibers.
  • the first segment 45 is located on the smoking segment 40A side.
  • the first segment 45 may have a hollow portion.
  • the second segment 46 is located on the mouthpiece side.
  • Second segment 46 is solid.
  • the first segment 45 includes a first filling layer (cellulose acetate acetate fiber) 45a and an inner plug wrapper 45b wound around the first filling layer 45a.
  • the second segment 46 includes a second filling layer (cellulose acetate acetate fiber) 46a and an inner plug wrapper 46b wound around the second filling layer 46a.
  • the first segment 45 and the second segment 46 are connected by an outer plug wrapper 47.
  • the outer plug wrapper 47 is bonded to the first segment 45 and the second segment 46 using a vinyl acetate emulsion adhesive or the
  • the length of the filter portion 40C is, for example, 10 to 30 mm
  • the length of the connecting portion 40B is, for example, 10 to 30 mm
  • the length of the first segment 45 is, for example, 5 to 15 mm
  • the length of the second segment 46 is, for example, 5 to 15 mm. can do.
  • the lengths of these individual segments are just examples, and can be changed as appropriate depending on manufacturing suitability, required quality, length of the smoking segment 40A, and the like.
  • the first segment 45 (center hole segment) is composed of a first filling layer 45a having one or more hollow parts and an inner plug wrapper 45b covering the first filling layer 45a.
  • the first segment 45 has the function of increasing the strength of the second segment 46.
  • the first packed layer 45a of the first segment 45 is filled with, for example, cellulose acetate fibers at a high density.
  • a plasticizer containing triacetin is added to the cellulose acetate fiber in an amount of, for example, 6 to 20% by mass based on the mass of the cellulose acetate, and the fiber is cured.
  • the hollow portion of the first segment 45 has an inner diameter of ⁇ 1.0 to ⁇ 5.0 mm, for example.
  • the first packed layer 45a of the first segment 45 may have a relatively high fiber packing density, or may have a fiber packing density equivalent to that of a second packed layer 46a of the second segment 46, which will be described later. Good too. Therefore, during suction, air or aerosol flows only through the hollow portion, and almost no air or aerosol flows into the first packed layer 45a. For example, if it is desired to reduce the reduction of aerosol components due to filtration in the second segment 46, the length of the second segment 46 can be shortened, and the first segment 45 can be lengthened by that amount.
  • Replacing the shortened second segment 46 with the first segment 45 is effective for increasing the amount of aerosol component delivered. Since the first filled layer 45a of the first segment 45 is a fiber filled layer, the user will not feel uncomfortable when using the device from the outside.
  • the second segment 46 is composed of a second filling layer 46a and an inner plug wrapper 46b that covers the second filling layer 46a.
  • the second segment 46 (filter segment) is filled with cellulose acetate fibers at a typical density and has typical aerosol component filtration performance.
  • the first segment 45 and the second segment 46 may have different filtration performance for filtering the aerosol (mainstream smoke) released from the smoking segment 40A. At least one of the first segment 45 and the second segment 46 may contain a fragrance.
  • the structure of the filter section 40C is arbitrary, and may have a structure having a plurality of segments as described above, or may be composed of a single segment. Further, the filter section 40C may be composed of one segment. In this case, the filter section 40C may be composed of either the first segment or the second segment.
  • the connecting portion 40B has a cylindrical shape.
  • the connecting portion 40B has a paper tube 43 formed in a cylindrical shape, for example, from cardboard or the like.
  • the connecting portion 40B may be filled with a cooling member for cooling the aerosol.
  • the cooling member include a sheet of polymer such as polylactic acid, and the sheet can be folded and filled.
  • a support part that suppresses the position of the smoking segment 40A from changing may be provided between the smoking segment 40A and the connecting part 40B.
  • the support portion can be constructed of a known material such as a center hole filter such as the first segment 45.
  • the wrapper 48 is wrapped around the smoking segment 40A, the connecting portion 40B, and the filter portion 40C in a cylindrical shape to integrally connect them.
  • a vinyl acetate emulsion adhesive is applied to one surface (inner surface) of the wrapper 48 over the entire surface or substantially the entire surface except for the vicinity of the ventilation hole portion 44 .
  • the plurality of ventilation holes 44 are formed by laser processing from the outside after the smoking segment 40A, the connecting part 40B, and the filter part 40C are integrated by the wrapper 48.
  • the ventilation hole portion 44 has two or more through holes that penetrate the connecting portion 40B in the thickness direction.
  • the two or more through holes are formed so as to be arranged radially when viewed from an extension of the central axis of the smoking article 40.
  • the ventilation hole portion 44 is provided in the connecting portion 40B, but may be provided in the filter portion 40C.
  • two or more through holes of the ventilation hole section 44 are provided in a row on one ring at a certain interval, but they are arranged on two rings at a certain interval.
  • the ventilation holes 44 may be arranged in two rows, or one or two rows of ventilation holes 44 may be arranged discontinuously or irregularly. When the user holds the mouthpiece in his or her mouth and inhales, outside air is drawn into the mainstream smoke through the vent portion 44. However, the ventilation hole portion 44 may not be provided.
  • the filter side end of the tobacco filling (the end located on the filter side of the two ends) and the center of the capsule
  • the distance between the two is not particularly limited, but is preferably 5 to 30 mm, more preferably 5 to 17.5 mm, and most preferably 5 to 10.5 mm.
  • the above-mentioned distance means the average distance between the filter-side end of the tobacco filling and the center of the plurality of capsules.
  • Method for reducing specific components contained in a smoke stream or aerosol emitted from a smoking article of the present invention includes It includes a contacting step of contacting with.
  • the characteristics of the liquid, such as the pH, type, and water content contained in the liquid, are not particularly limited; The features described in the section above can be used alone or in any combination.
  • the above-mentioned contacting step is not particularly limited, but can further include the step of passing the above-mentioned smoke stream or aerosol through a liquid filled in a container.
  • the amount of liquid in the container is not particularly limited, but from the viewpoint of component filtration, it is preferably 10 to 100 ml, more preferably 20 to 80 ml, and most preferably 40 to 60 ml.
  • the container is not particularly limited, but the container described in "(2) Smoking test" in [Examples] below can be used.
  • Smoking articles are not particularly limited, but include the above 2.
  • Smoking articles containing filters containing capsules and tobacco fillers as described in the section above can be used.
  • the characteristics such as the liquid content per capsule, the number of capsules included in the filter, and the structure of the capsules are not particularly limited, but the characteristics described in 1. and 2.
  • the features described in the section above can be used alone or in any combination.
  • Smoking articles meet the above 2.
  • the above contacting step is: destroying at least a portion of the capsule to cause the liquid to eject from within the capsule and permeate into the filter body;
  • the method may further include the step of passing through the main body.
  • TSNA NPN (N'-nitrosonornicotine), NNK (4-(methylnitrosamino)-1-(3-pyridyl)-1-butanone)), carbonyl compound (formaldehyde , acetaldehyde, acrolein), 1,3-butadiene, benzene, benzopyrene, or mixtures of two or more thereof, and in particular, benzopyrene, formaldehyde, or mixtures thereof. be able to.
  • benzopyrene and formaldehyde are specific components that are relatively difficult to remove and are desirable to remove.
  • Benzopyrene can be benzo[a]pyrene.
  • the method may further include a measuring step of measuring the amount of the specific component contained in the smoke stream or aerosol after contact with the liquid.
  • the measuring step may further include extracting a specific component from the smoke stream or aerosol after contact with the liquid, and measuring the amount of the extracted specific component. By performing such a measurement process, it is possible to confirm whether the specific component has been reduced.
  • extraction of the specific component and measurement of the amount of the specific component can be performed based on the test conditions and analysis conditions described in "(2) Smoking test" in [Example] below.
  • ⁇ TSNA NNN (N'-nitrosonornicotine), NNK (4-(methylnitrosamino)-1-(3-pyridyl)-1-butanone)
  • CFP Chip filter pad
  • the obtained extract was filtered through a syringe filter (pore size: 0.45 ⁇ m, MF-Millipore, manufactured by Merck Millipore), and the obtained filtrate was used for LC-MS/MS (UHPLC1290, manufactured by Agilent) ( Measurement/quantification of TSNA was performed using a column (X-Bridge BEH C18, 2.1 mm x 50 mm, 2.5 ⁇ m).
  • the volume was adjusted to 10 mL.
  • the resulting 10 mL solution was filtered through a syringe filter (pore size: 0.2 ⁇ m, MF-Millipore, manufactured by Merck Millipore), and the resulting filtrate was packed into a vial and used as an analysis sample.
  • the obtained analysis sample was treated with formaldehyde using UHPLC (Ultra-High performance Liquid chromatography 1290 LC system, manufactured by Agilent) (column: SB-C18, 2.1 mm x 150 mm, 1.8 ⁇ m). , acetaldehyde, and acrolein were each measured/quantified.
  • a standard solution for volatile hydrocarbons calibration curve containing an internal standard substance (Toluene-d8) was analyzed by GC-MS at one point for each of 7 levels, and the measured components (1,3-butadiene and benzene) and the internal standard A calibration curve was created from the response ratio and concentration of the substance. Based on the created calibration curve, quantitative values of each component were obtained as described above from the response ratio of the measured component of the analysis sample and the internal standard substance.
  • Table 1 shows the reduction rate of each component calculated based on the formula shown below.
  • the filter of the present invention can reduce specific components contained in smoke streams or aerosols emitted from smoking articles.

Landscapes

  • Cigarettes, Filters, And Manufacturing Of Filters (AREA)

Abstract

La présente invention aborde le problème de la fourniture d'un filtre qui réduit la quantité de composants spécifiques inclus dans un écoulement de fumée ou un aérosol émis par un article à fumer.　L'invention concerne un filtre (FL-1) comprenant une capsule (CA-1) et une partie corps de filtre sensiblement cylindrique qui comprend un espace de stockage dans lequel la capsule est stockée, un liquide étant enfermé de manière étanche à l'intérieur de la capsule, et la teneur en liquide par capsule étant de 10 mg ou plus.
PCT/JP2023/004484 2022-05-13 2023-02-10 Filtre, article à fumer et procédé de réduction de la quantité de composants spécifiques inclus dans un écoulement de fumée ou un aérosol Ceased WO2023218713A1 (fr)

Applications Claiming Priority (2)

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JP2022079343A JP2025135024A (ja) 2022-05-13 2022-05-13 フィルタ、喫煙物品、及び煙流又はエアロゾルに含まれる特定成分を減少させる方法
JP2022-079343 2022-05-13

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WO2023218713A1 true WO2023218713A1 (fr) 2023-11-16

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58107166A (ja) * 1981-12-21 1983-06-25 株式会社アドバンス たばこ用フイルタ
JP4224459B2 (ja) * 2002-09-19 2009-02-12 日本たばこ産業株式会社 たばこ用フィルター
WO2013021863A1 (fr) * 2011-08-05 2013-02-14 日本たばこ産業株式会社 Cigarette
WO2014061415A1 (fr) * 2012-10-15 2014-04-24 日本たばこ産業株式会社 Capsules renfermant un liquide, et article à fumer équipé de ces capsules
JP2021518749A (ja) * 2018-03-02 2021-08-05 ニコベンチャーズ トレーディング リミテッド エアロゾル生成

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58107166A (ja) * 1981-12-21 1983-06-25 株式会社アドバンス たばこ用フイルタ
JP4224459B2 (ja) * 2002-09-19 2009-02-12 日本たばこ産業株式会社 たばこ用フィルター
WO2013021863A1 (fr) * 2011-08-05 2013-02-14 日本たばこ産業株式会社 Cigarette
WO2014061415A1 (fr) * 2012-10-15 2014-04-24 日本たばこ産業株式会社 Capsules renfermant un liquide, et article à fumer équipé de ces capsules
JP2021518749A (ja) * 2018-03-02 2021-08-05 ニコベンチャーズ トレーディング リミテッド エアロゾル生成

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