EP2578093A1 - Filter for cigarette, and cigarette - Google Patents

Filter for cigarette, and cigarette Download PDF

Info

Publication number
EP2578093A1
EP2578093A1 EP11789719.9A EP11789719A EP2578093A1 EP 2578093 A1 EP2578093 A1 EP 2578093A1 EP 11789719 A EP11789719 A EP 11789719A EP 2578093 A1 EP2578093 A1 EP 2578093A1
Authority
EP
European Patent Office
Prior art keywords
cigarette
content liquid
filter
paper
flavor
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.)
Granted
Application number
EP11789719.9A
Other languages
German (de)
French (fr)
Other versions
EP2578093A4 (en
EP2578093B1 (en
Inventor
Kazuhiro Noda
Yasuhiro Nakagawa
Susumu Yokogawa
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 EP2578093A1 publication Critical patent/EP2578093A1/en
Publication of EP2578093A4 publication Critical patent/EP2578093A4/en
Application granted granted Critical
Publication of EP2578093B1 publication Critical patent/EP2578093B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

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
    • A24D3/06—Use of materials for tobacco smoke filters
    • A24D3/061—Use of materials for tobacco smoke filters containing additives entrapped within capsules, sponge-like material or the like, for further release upon smoking
    • 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
    • A24D1/00—Cigars; Cigarettes
    • A24D1/002—Cigars; Cigarettes with additives, e.g. for flavouring
    • 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
    • A24D1/00—Cigars; Cigarettes
    • A24D1/02—Cigars; Cigarettes with special covers
    • 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
    • A24D3/06—Use of materials for tobacco smoke filters
    • A24D3/14—Use of materials for tobacco smoke filters of organic materials as additive

Definitions

  • the present invention relates to a cigarette filter including a flavor capsule, and a cigarette.
  • Patent Literatures 1 to 5 Conventionally, a flavor capsule is incorporated in a cigarette filter and the flavor capsule is crushed in order to enjoy the flavor of the content liquid in smoking or in order to mask odor of a cigarette butt after the cigarette is extinguished.
  • Patent Literatures 1 to 5 The details of the flavor capsule are described in, for example, Patent Literature 6.
  • Such cigarette filters including the flavor capsule have various problems.
  • FIG. 1(a) shows a cigarette in which a tobacco rod 10 is connected to a filter 20 with a tipping paper 30, wherein the tobacco rod 10 is prepared by wrapping a tobacco filler 11 with a cigarette paper 12 and the filter 20 is prepared by wrapping a filter plug 22 having a flavor capsule 21 embedded therein with a plug wrapping paper 23.
  • the flavor capsule 21 has a structure in which content liquid 21b is encapsulated with a shell 21a.
  • the shell 21a of the flavor capsule 21 is crushed in smoking of such a cigarette, the content liquid 21b flowed out of the capsule is absorbed by the filter plug 22, and thus the fluid is not soaked through the tipping paper 30 to the surface thereof, as shown in FIG. 1(b) .
  • Good usability is not obtained because the flavor capsule 21 embedded in the filter plug 22 does not give a sense that the capsule is crushed.
  • a filter having a structure in which filter plugs are separated from each other and arranged through a cavity, with a flavor capsule provided in the cavity, can give the sense that the flavor capsule is crushed, and thus has a good usability.
  • FIG. 2(a) shows a cigarette in which a tobacco rod 10 is connected to a filter 20 with a tipping paper 30, wherein the tobacco rod 10 is prepared by wrapping a tobacco filler 11 with a cigarette paper 12 and the filter 20 has a structure that a flavor capsule 21 is provided in a cavity between two filter plugs 25.
  • a material paper 26 is wrapped around each of the two filter plugs 25, and a shaping paper 27 is wrapped around the periphery where both plugs are separated from each other and arranged through the cavity.
  • the content liquid 21b flowed out of the capsule is soaked through the tipping paper 30 to the surface thereof, as shown in FIG. 2B , because the shaping paper is generally made of a high-permeable material.
  • a liquid-impermeable tipping paper and/or filter wrapper a material paper, a shaping paper or a plug wrapping paper.
  • These materials are not limited to paper, and may be a wrapping material made of cellophane or plastic, or a composite material.
  • the shaping paper 27 is liquid-impermeable, the content liquid 21b flowed out of the capsule moves toward the tobacco rod 10 or the mouthpiece end along the gap between the inside of the liquid-impermeable shaping paper 27 and the filter plugs 25, as shown in FIG. 2(c) .
  • the liquid is finally passed through the tobacco filler 11 in the tobacco rod 10, and is soaked through the tipping paper 30 to the cigarette paper 12 of the tobacco rod 10.
  • the liquid which moves toward the mouthpiece end along the gap between the inside of the shaping paper 27 and the filter plug 25 is soaked to the end face of the filter plug 25.
  • This disadvantage can be solved by coating the inside of the liquid-impermeable shaping paper 27 with wax or paste to fill the gap between the inside of the shaping paper 27 and the filter plug 25, thereby preventing the migration of the content liquid 21b.
  • the residue of wax or paste adheres to a filter making machine, and thus it is difficult to perform mass production.
  • the object of the present invention is to provide a cigarette filter including a flavor capsule, capable of preventing soakage of the content liquid to the surface of the tipping paper, the cigarette paper of the tobacco rod and the filter mouthpiece end face when it is used, without causing trouble in the filter production; and a cigarette including this cigarette filter.
  • a cigarette filter comprising: filter plugs separated from each other and arranged through a cavity; a flavor capsule encapsulating a content liquid including a flavor in a shell and provided in the cavity between the filter plugs; and a liquid-impermeable tipping paper and/or filter wrapper (a material paper, a shaping paper or a plug wrapping paper) wrapped around the filter plugs and the flavor capsule, characterized in that the content liquid comprises the flavor and a thickener and has a viscosity of 30 mPa ⁇ s or more.
  • a cigarette characterized by comprising: a tobacco rod; and the above cigarette.
  • the cigarette filter and the cigarette of the present invention can prevent the soakage of the content liquid to the surface of the tipping paper, the cigarette paper of the tobacco rod and the filter mouthpiece end face when it is used, by adding a thickener to the content liquid in the flavor capsule to adjust a viscosity of the content liquid to 30 mPa ⁇ s or more.
  • a flavor capsule provided in a cavity between filter plugs contains a content liquid including a flavor and a thickener and having a viscosity of 30 mPa ⁇ s (25°C) or more.
  • the viscosity of the content liquid is less than 30 mPa ⁇ s (25°C), particularly less than 18 mPa ⁇ s (25°C)
  • the content liquid is soaked to a surface of a tipping paper, a cigarette paper of a tobacco rod and a filter mouthpiece end face when the flavor capsule is crushed.
  • the viscosity of the content liquid is preferably 30 mPa ⁇ s (25°C) or more, more preferably 80 mPa ⁇ s (25°C) or more.
  • menthol and refined vegetable oil can be used as the flavor.
  • liquid thickeners and solid thickeners can be used as the thickener which is added to the content liquid in the flavor capsule.
  • Fat and oil such as tocopherol, rapeseed oil, olive oil, cottonseed oil and sucrose diacetate hexaisobutyrate (SAIB) can be used as the liquid thickener.
  • SAIB sucrose diacetate hexaisobutyrate
  • rapeseed oil and SAIB are more preferable.
  • the fat and oil When used as the thickener, it is preferably used in an amount within a range of 19.1 to 57.4% by weight of the content liquid.
  • SAIB When SAIB is used as the thickener, it is preferably used in an amount within a range of 40% by weight or more of the content liquid, preferably 60% by weight or more.
  • MCTs medium-chain fatty acid triglycerides
  • the content liquid may further contain other additives such as a solvent, a dye and an emulsifier.
  • the shell of the flavor capsule may be formed using, for example, starch, dextrin, polysaccharides, agar, gellan gum, gelatin, various natural gelling agents, glycerol, sorbitol, calcium chloride, or the like, and the shell may further contain a flavor and a coloring agent.
  • the tipping paper and/or filter wrapper (a material paper, a shaping paper or a plug wrapping paper) is liquid-impermeable, which means that they are oil-resistant. It is preferable to use an oilproof paper for the shaping paper 27, for example, of at least the tipping paper and/or the filter wrapper, which is directly brought into contact with the flavor capsule 21.
  • an oilproof paper for the shaping paper 27 for example, of at least the tipping paper and/or the filter wrapper, which is directly brought into contact with the flavor capsule 21.
  • a oilproof paper manufactured by Nippon Paper Papylia Co., Ltd. is preferable, because it does not use a film or a fluorine-containing resin. Properties of the oilproof paper manufactured by Nippon Paper Papylia Co., Ltd. are shown in Table 1. Table 1 Basis weight (g/m2) Thickness ( ⁇ m) Tensile Strength (kN/m) Oilproof paper 1 35 40 3.0 Oilproof paper 2 50 52 5.0
  • the flavor capsule may be provided in a cavity between filter plugs, or it may be embedded in the filter plug as in FIG. 1 .
  • the flavor capsule of the present invention can be applied to chewing tobacco, SNUS, and a non-combustible flavor inhalation pipe described in International Application PCT/JP2010/052835 .
  • FIG. 3 is a perspective view showing sizes of a cigarette filter produced in this Example.
  • a material paper (not shown) is wrapped around the two filter rods 25 made of acetate at a side of a tobacco rod and a side of a mouthpiece.
  • the two filter rods 25 are separated from each other and arranged through a cavity, and a liquid-impermeable (oil-resistant) shaping paper 27 is wrapped around the rods.
  • a flavor capsule 21 is put in a cavity between the two filter rods 25.
  • the flavor capsule 21 has a structure that a content liquid 21b is encapsulated with a shell 21a.
  • Length L1 of the filter rod 25 at the tobacco rod side is 11.0 mm; length L2 of the filter rod 25 at the mouthpiece side is 10.0 mm; length S of the cavity is 6.0 mm; total length TL is 27.0 mm; and diameter D of the flavor capsule 21 is 4.5 mm.
  • the content liquid 21b in the flavor capsule 21 has a viscosity of 30 mPa ⁇ s or more.
  • the production method of the flavor capsule is not particularly limited, and it is preferable to use, for example, a dropping method, because a flavor capsule having a seamless shell can be produced by this method.
  • a dropping method because a flavor capsule having a seamless shell can be produced by this method.
  • the content liquid and a liquid shell material are discharged at the same time from an inside nozzle and an outside nozzle respectively, using a double nozzle, whereby the content liquid can be encapsulated seamlessly with the shell liquid.
  • the cigarette filter of this Example can suppress soakage of the content liquid 21b, which is flowed out by crushing the shell 21a of the flavor capsule 21, to the surface of the tipping paper, the cigarette paper of the tobacco rod, and the filter mouthpiece end face, because the content liquid 21b in the flavor capsule 21 has a viscosity of 30 mPa ⁇ s (25°C) or more.
  • a filter making machine is not adversely affected.
  • Menthol and refined vegetable oil as a flavor, and medium-chain fatty acid triglyceride (MCT) as a solvent were provided (no thickener), and they were mixed in a ratio of each sample A to C in Table 2 to prepared a content liquid of a flavor capsule.
  • the viscosity of the content liquid was measured by using a rotary viscometer (TVB-10M manufactured by Toki Sangyo Co., Ltd.).
  • Menthol and refined vegetable oil as a flavor, medium-chain fatty acid triglyceride (MCT) as a solvent, and rapeseed oil as a thickener were provided, and they were mixed in a ratio of each sample D to H in Table 2 to prepare a content liquid of a flavor capsule.
  • the viscosity of the content liquid was measured by using a rotary viscometer (TVB-10M manufactured by Toki Sangyo Co., Ltd.).
  • Menthol and refined vegetable oil as a flavor, medium-chain fatty acid triglyceride (MCT) as a solvent, and sucrose diacetate hexaisobutyrate (SAIB) as a thickener were provided, and they were mixed in a ratio of each sample I to K in Table 2 to produce a content liquid of a flavor capsule.
  • the viscosity of the content liquid was measured by using a rotary viscometer (TVB-10M manufactured by Toki Sangyo Co., Ltd.).
  • a mixture of starch, dextrin and polysaccharides as a shell material was mixed with 80% by weight of the content liquid described above to produce a flavor capsule having a diameter of 4.5 mm by a dropping method.
  • a cigarette filter shown in FIG. 3 was produced using the flavor capsule, and further a cigarette similar to that shown in FIG. 2(a) was produced.
  • the soakage of the content liquid to the surface of the tipping paper, the cigarette paper of the tobacco rod and the filter mouthpiece end face was checked within 10 minutes from the breakage of the shell of the flavor capsule, which was a usual smoking time. It is preferable, however, that only a small amount of the content liquid soaks to the cigarette paper of the tobacco rod, even if a longer time elapses from the breakage of the shell of the flavor capsule.
  • the soakage of the content liquid after a long time was checked as described below. In the following tests, the content liquid in the capsule did not contain any flavor.
  • MCT medium-chain fatty acid triglyceride
  • a content liquid in a capsule was prepared by mixing 43% by weight of medium-chain fatty acid triglyceride (MCT) as a solvent with 57% by weight of rapeseed oil as a thickener.
  • MCT medium-chain fatty acid triglyceride
  • a content liquid in a capsule was produced by mixing 60% by weight, 50% by weight or 40% by weight of medium-chain fatty acid triglyceride (MCT) as a solvent with 40% by weight, 50% by weight or 60% by weight of SAIB as a thickener.
  • MCT medium-chain fatty acid triglyceride
  • the viscosity of the content liquid was measured by using a rotary viscometer (TVB-10M manufactured by Toki Sangyo Co., Ltd.).
  • the composition and the viscosity of the content liquid in the capsule are shown in Table 3.
  • a mixture of starch, dextrin and polysaccharides as a shell material was mixed with 80% by weight of the content liquid described above to produce a capsule having a diameter of 4.5 mm by a dropping method.
  • a cigarette filter shown in FIG. 3 was produced using the capsule, and further a cigarette similar to that shown in FIG. 2(a) was produced.
  • the shell of the flavor capsule of each cigarette of samples L to P was broken, and after one week, soakage of the content liquid to the cigarette paper of the tobacco rod was checked.
  • the length of the content liquid soaked refers to a distance measured from the end of the tobacco rod 10 in contact with one filter plug 25, to a position in the cigarette paper to which the soaked content liquid reached. The results are also shown in Table 3.
  • FIG. 5 is a graph showing a relationship between the viscosity of the content liquid and the length of the content liquid soaked in samples M to P.
  • the content liquid containing SAIB as the thickener can suppress the separation of the components of the content liquid, which is caused by the paper chromatograph phenomenon, even after one week, because the soakage length is small.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Cigarettes, Filters, And Manufacturing Of Filters (AREA)

Abstract

A cigarette filter comprising filter plugs separated from each other and arranged through a cavity, a flavor capsule encapsulating a content liquid including a flavor in a shell and provided in the cavity between the filter plugs, and a liquid-impermeable tipping paper and/or filter wrapper wrapped around the filter plugs and the flavor capsule, characterized in that the content liquid comprises the flavor and a thickener and has a viscosity of 30 mPa·s or more.

Description

    Technical Field
  • The present invention relates to a cigarette filter including a flavor capsule, and a cigarette.
    • Background Art
  • Conventionally, a flavor capsule is incorporated in a cigarette filter and the flavor capsule is crushed in order to enjoy the flavor of the content liquid in smoking or in order to mask odor of a cigarette butt after the cigarette is extinguished (Patent Literatures 1 to 5). The details of the flavor capsule are described in, for example, Patent Literature 6. Such cigarette filters including the flavor capsule have various problems.
  • FIG. 1(a) shows a cigarette in which a tobacco rod 10 is connected to a filter 20 with a tipping paper 30, wherein the tobacco rod 10 is prepared by wrapping a tobacco filler 11 with a cigarette paper 12 and the filter 20 is prepared by wrapping a filter plug 22 having a flavor capsule 21 embedded therein with a plug wrapping paper 23. The flavor capsule 21 has a structure in which content liquid 21b is encapsulated with a shell 21a. When the shell 21a of the flavor capsule 21 is crushed in smoking of such a cigarette, the content liquid 21b flowed out of the capsule is absorbed by the filter plug 22, and thus the fluid is not soaked through the tipping paper 30 to the surface thereof, as shown in FIG. 1(b). Good usability, however, is not obtained because the flavor capsule 21 embedded in the filter plug 22 does not give a sense that the capsule is crushed.
  • A filter having a structure in which filter plugs are separated from each other and arranged through a cavity, with a flavor capsule provided in the cavity, can give the sense that the flavor capsule is crushed, and thus has a good usability.
  • FIG. 2(a) shows a cigarette in which a tobacco rod 10 is connected to a filter 20 with a tipping paper 30, wherein the tobacco rod 10 is prepared by wrapping a tobacco filler 11 with a cigarette paper 12 and the filter 20 has a structure that a flavor capsule 21 is provided in a cavity between two filter plugs 25. A material paper 26 is wrapped around each of the two filter plugs 25, and a shaping paper 27 is wrapped around the periphery where both plugs are separated from each other and arranged through the cavity. There is also a filter plug having either the material paper or the shaping paper, or having no material paper or shaping paper (in the case of FIG. 1, the plug has only the plug wrapping paper which serves as the material paper and the shaping paper). When a shell 21a of the flavor capsule 21 is crushed in smoking of such a cigarette, the content liquid 21b flowed out of the capsule is soaked through the tipping paper 30 to the surface thereof, as shown in FIG. 2B, because the shaping paper is generally made of a high-permeable material.
  • In order to suppress the soakage of the content liquid through the tipping paper to the surface thereof, it may be considered to use a liquid-impermeable tipping paper and/or filter wrapper (a material paper, a shaping paper or a plug wrapping paper). These materials are not limited to paper, and may be a wrapping material made of cellophane or plastic, or a composite material. When the shaping paper 27 is liquid-impermeable, the content liquid 21b flowed out of the capsule moves toward the tobacco rod 10 or the mouthpiece end along the gap between the inside of the liquid-impermeable shaping paper 27 and the filter plugs 25, as shown in FIG. 2(c). The liquid is finally passed through the tobacco filler 11 in the tobacco rod 10, and is soaked through the tipping paper 30 to the cigarette paper 12 of the tobacco rod 10. The liquid which moves toward the mouthpiece end along the gap between the inside of the shaping paper 27 and the filter plug 25 is soaked to the end face of the filter plug 25.
  • This disadvantage can be solved by coating the inside of the liquid-impermeable shaping paper 27 with wax or paste to fill the gap between the inside of the shaping paper 27 and the filter plug 25, thereby preventing the migration of the content liquid 21b. However, the residue of wax or paste adheres to a filter making machine, and thus it is difficult to perform mass production.
    • Citation List Patent Literature
    • Patent Literature 1: Jpn. Pat. Appln. KOKAI Publication No. 7-250665
    • Patent Literature 2: Jpn. Pat. Appln. KOKAI Publication No. 2003-304856
    • Patent Literature 3: Jpn. PCT National Publication No. 2007-520204
    • Patent Literature 4: Jpn. PCT National Publication No. 2008-528053
    • Patent Literature 5: Jpn. PCT National Publication No. 2008-539717
    • Patent Literature 6: Jpn. PCT National Publication No. 2008-546400
    Summary of Invention
  • The object of the present invention is to provide a cigarette filter including a flavor capsule, capable of preventing soakage of the content liquid to the surface of the tipping paper, the cigarette paper of the tobacco rod and the filter mouthpiece end face when it is used, without causing trouble in the filter production; and a cigarette including this cigarette filter.
  • According to the present invention, there is provided a cigarette filter comprising: filter plugs separated from each other and arranged through a cavity; a flavor capsule encapsulating a content liquid including a flavor in a shell and provided in the cavity between the filter plugs; and a liquid-impermeable tipping paper and/or filter wrapper (a material paper, a shaping paper or a plug wrapping paper) wrapped around the filter plugs and the flavor capsule, characterized in that the content liquid comprises the flavor and a thickener and has a viscosity of 30 mPa·s or more.
  • According to the present invention, there is also provided a cigarette characterized by comprising: a tobacco rod; and the above cigarette.
  • The cigarette filter and the cigarette of the present invention can prevent the soakage of the content liquid to the surface of the tipping paper, the cigarette paper of the tobacco rod and the filter mouthpiece end face when it is used, by adding a thickener to the content liquid in the flavor capsule to adjust a viscosity of the content liquid to 30 mPa·s or more.
    • Brief Description of Drawings
    • FIG. 1 is a schematic view showing absorption of the content liquid in a flavor capsule embedded in a conventional cigarette filter to a filter plug.
    • FIG. 2 is a schematic view showing soakage of the content liquid in a flavor capsule to the surface of a tipping paper, a cigarette paper of a tobacco rod and a filter mouthpiece end face in another conventional cigarette filter.
    • FIG. 3 is an exploded perspective view showing a cigarette filter of Example of the present invention.
    • FIG. 4 is a schematic view showing a state in which soakage of the content liquid in a flavor capsule to the surface of a tipping paper, a cigarette paper of a tobacco rod and a filter mouthpiece end face can be suppressed in a cigarette filter of Example of the present invention.
    • FIG. 5 is a graph showing a relationship between a viscosity of the content liquid in a flavor capsule and a length of the content liquid soaked to a cigarette paper after one week from breakage of the shell of the flavor capsule in a cigarette filter of Example of the present invention.
    Description of Embodiments
  • In the cigarette filter of the present invention, a flavor capsule provided in a cavity between filter plugs contains a content liquid including a flavor and a thickener and having a viscosity of 30 mPa·s (25°C) or more.
  • In the present invention, if the viscosity of the content liquid is less than 30 mPa·s (25°C), particularly less than 18 mPa·s (25°C), the content liquid is soaked to a surface of a tipping paper, a cigarette paper of a tobacco rod and a filter mouthpiece end face when the flavor capsule is crushed. The viscosity of the content liquid is preferably 30 mPa·s (25°C) or more, more preferably 80 mPa·s (25°C) or more.
  • In the present invention, as the flavor, for example, menthol and refined vegetable oil can be used.
  • In the present invention, liquid thickeners and solid thickeners can be used as the thickener which is added to the content liquid in the flavor capsule. Fat and oil such as tocopherol, rapeseed oil, olive oil, cottonseed oil and sucrose diacetate hexaisobutyrate (SAIB) can be used as the liquid thickener. Of these, rapeseed oil and SAIB are more preferable.
  • When the fat and oil is used as the thickener, it is preferably used in an amount within a range of 19.1 to 57.4% by weight of the content liquid. When SAIB is used as the thickener, it is preferably used in an amount within a range of 40% by weight or more of the content liquid, preferably 60% by weight or more.
  • In the present invention, as a solvent for the flavor and the thickener contained in the content liquid, for example, medium-chain fatty acid triglycerides (MCTs) can be used.
  • In the present invention, the content liquid may further contain other additives such as a solvent, a dye and an emulsifier.
  • In the present invention, the shell of the flavor capsule may be formed using, for example, starch, dextrin, polysaccharides, agar, gellan gum, gelatin, various natural gelling agents, glycerol, sorbitol, calcium chloride, or the like, and the shell may further contain a flavor and a coloring agent.
  • In the present invention, the tipping paper and/or filter wrapper (a material paper, a shaping paper or a plug wrapping paper) is liquid-impermeable, which means that they are oil-resistant. It is preferable to use an oilproof paper for the shaping paper 27, for example, of at least the tipping paper and/or the filter wrapper, which is directly brought into contact with the flavor capsule 21. Of the oilproof papers, for example, a oilproof paper manufactured by Nippon Paper Papylia Co., Ltd. is preferable, because it does not use a film or a fluorine-containing resin. Properties of the oilproof paper manufactured by Nippon Paper Papylia Co., Ltd. are shown in Table 1. Table 1
    Basis weight (g/m2) Thickness (µm) Tensile Strength (kN/m)
    Oilproof paper 1 35 40 3.0
    Oilproof paper 2 50 52 5.0
  • In the present invention, the flavor capsule may be provided in a cavity between filter plugs, or it may be embedded in the filter plug as in FIG. 1.
  • The flavor capsule of the present invention can be applied to chewing tobacco, SNUS, and a non-combustible flavor inhalation pipe described in International Application PCT/JP2010/052835 .
    • Examples
  • Examples of the present invention will be described below.
  • FIG. 3 is a perspective view showing sizes of a cigarette filter produced in this Example. A material paper (not shown) is wrapped around the two filter rods 25 made of acetate at a side of a tobacco rod and a side of a mouthpiece. The two filter rods 25 are separated from each other and arranged through a cavity, and a liquid-impermeable (oil-resistant) shaping paper 27 is wrapped around the rods. A flavor capsule 21 is put in a cavity between the two filter rods 25. The flavor capsule 21 has a structure that a content liquid 21b is encapsulated with a shell 21a. Length L1 of the filter rod 25 at the tobacco rod side is 11.0 mm; length L2 of the filter rod 25 at the mouthpiece side is 10.0 mm; length S of the cavity is 6.0 mm; total length TL is 27.0 mm; and diameter D of the flavor capsule 21 is 4.5 mm. In the present invention, the content liquid 21b in the flavor capsule 21 has a viscosity of 30 mPa·s or more.
  • The production method of the flavor capsule is not particularly limited, and it is preferable to use, for example, a dropping method, because a flavor capsule having a seamless shell can be produced by this method. According to this method, the content liquid and a liquid shell material are discharged at the same time from an inside nozzle and an outside nozzle respectively, using a double nozzle, whereby the content liquid can be encapsulated seamlessly with the shell liquid.
  • As shown in FIG. 4, the cigarette filter of this Example can suppress soakage of the content liquid 21b, which is flowed out by crushing the shell 21a of the flavor capsule 21, to the surface of the tipping paper, the cigarette paper of the tobacco rod, and the filter mouthpiece end face, because the content liquid 21b in the flavor capsule 21 has a viscosity of 30 mPa·s (25°C) or more. In addition, a filter making machine is not adversely affected.
    • Example 1
  • Menthol and refined vegetable oil as a flavor, and medium-chain fatty acid triglyceride (MCT) as a solvent were provided (no thickener), and they were mixed in a ratio of each sample A to C in Table 2 to prepared a content liquid of a flavor capsule. The viscosity of the content liquid was measured by using a rotary viscometer (TVB-10M manufactured by Toki Sangyo Co., Ltd.).
  • Eight percent by weight or 20% by weight of a mixture of starch, dextrin and polysaccharides as a shell material was mixed with 92% by weight or 80% by weight of the content liquid described above, and a flavor capsule having a diameter of 4.5 mm was produced by a dropping method. A cigarette filter shown in FIG. 3 was produced using the flavor capsule, and further a cigarette similar to that shown in FIG. 2(a) was produced.
    • Example 2
  • Menthol and refined vegetable oil as a flavor, medium-chain fatty acid triglyceride (MCT) as a solvent, and rapeseed oil as a thickener were provided, and they were mixed in a ratio of each sample D to H in Table 2 to prepare a content liquid of a flavor capsule. The viscosity of the content liquid was measured by using a rotary viscometer (TVB-10M manufactured by Toki Sangyo Co., Ltd.).
  • Eight percent by weight or 20% by weight of a mixture of starch, dextrin and polysaccharides as a shell material was mixed with 92% by weight or 80% by weight of the content liquid described above to produce a flavor capsule having a diameter of 4.5 mm by a dropping method. A cigarette filter shown in FIG. 3 was produced using the flavor capsule, and further a cigarette similar to that shown in FIG. 2(a) was produced.
    • Example 3
  • Menthol and refined vegetable oil as a flavor, medium-chain fatty acid triglyceride (MCT) as a solvent, and sucrose diacetate hexaisobutyrate (SAIB) as a thickener were provided, and they were mixed in a ratio of each sample I to K in Table 2 to produce a content liquid of a flavor capsule. The viscosity of the content liquid was measured by using a rotary viscometer (TVB-10M manufactured by Toki Sangyo Co., Ltd.).
  • Twenty percent by weight of a mixture of starch, dextrin and polysaccharides as a shell material was mixed with 80% by weight of the content liquid described above to produce a flavor capsule having a diameter of 4.5 mm by a dropping method. A cigarette filter shown in FIG. 3 was produced using the flavor capsule, and further a cigarette similar to that shown in FIG. 2(a) was produced.
  • The shell of the flavor capsule of each cigarette of samples A to K was broken, and after 10 minutes, soakage of the content liquid to the surface of the tipping paper, the cigarette paper of the tobacco rod and the filter mouthpiece end face were checked. The results are also shown in Table 2.
  • It can be found from the results of Table 2 that when the content liquid in the flavor capsule had a viscosity of 30 mPa·s (25°C) or more, the soakage of the content liquid to the surface of the tipping paper, the cigarette paper of the tobacco rod and the filter mouthpiece end face can be suppressed. In addition, it is found that when the content liquid in the flavor capsule has a viscosity of 80 mPa·s (25°C) or more, the soakage of the content liquid to the surface of the tipping paper, the cigarette paper of the tobacco rod and the filter mouthpiece end face can be more certainly suppressed. Table 2
    Sample Capsule formulation Test results Note
    Diameter (mm) Shell (wt%) Content liquid Viscosity (mPa·s) Number of cigarettes tested (cigarettes) Number of cigarettes soaked (cigarettes) Type of thickner
    Flavor (wt%) Solvent (wt%) Thickner (wt%)
    Example 1 A 4.5 8.0 15.4 76.6 0.0 16.9 10 8 None
    B 4.5 20.0 13.7 66.3 0.0 17.7 10 4
    C 4.5 20.0 13.7 66.3 0.0 17.7 10 7
    Example 2 D 4.5 8.0 15.4 57.4 19.1 36.2 10 0 Rapeseed oil
    E 4.5 8.0 15.4 38.3 38.3 88.1 10 0
    F 4.5 8.0 15.4 19.1 57.4 352.8 10 0
    G 4.5 8.0 22.1 17.5 52.4 124.1 10 0
    H 4.5 20.0 19.2 15.2 45.6 124.1 10 0
    Example 3 I 4.5 20.0 17.6 14.4 48.0 58.7 10 0 SAIB
    J 4.5 20.0 17.6 9.6 52.8 90.0 10 0
    K 4.5 20.0 17.6 4.8 57.6 137.1 10 0
    • Example 4
  • According to the tests of Examples 1 to 3, the soakage of the content liquid to the surface of the tipping paper, the cigarette paper of the tobacco rod and the filter mouthpiece end face was checked within 10 minutes from the breakage of the shell of the flavor capsule, which was a usual smoking time. It is preferable, however, that only a small amount of the content liquid soaks to the cigarette paper of the tobacco rod, even if a longer time elapses from the breakage of the shell of the flavor capsule. The soakage of the content liquid after a long time was checked as described below. In the following tests, the content liquid in the capsule did not contain any flavor.
    • Sample L
  • Only medium-chain fatty acid triglyceride (MCT) as a solvent was used for a content liquid in a capsule.
    • Sample M
  • A content liquid in a capsule was prepared by mixing 43% by weight of medium-chain fatty acid triglyceride (MCT) as a solvent with 57% by weight of rapeseed oil as a thickener.
    • Samples N, O and P
  • A content liquid in a capsule was produced by mixing 60% by weight, 50% by weight or 40% by weight of medium-chain fatty acid triglyceride (MCT) as a solvent with 40% by weight, 50% by weight or 60% by weight of SAIB as a thickener.
  • The viscosity of the content liquid was measured by using a rotary viscometer (TVB-10M manufactured by Toki Sangyo Co., Ltd.). The composition and the viscosity of the content liquid in the capsule are shown in Table 3.
  • Twenty percent by weight of a mixture of starch, dextrin and polysaccharides as a shell material was mixed with 80% by weight of the content liquid described above to produce a capsule having a diameter of 4.5 mm by a dropping method. A cigarette filter shown in FIG. 3 was produced using the capsule, and further a cigarette similar to that shown in FIG. 2(a) was produced.
  • The shell of the flavor capsule of each cigarette of samples L to P was broken, and after one week, soakage of the content liquid to the cigarette paper of the tobacco rod was checked. In this case, the length of the content liquid soaked refers to a distance measured from the end of the tobacco rod 10 in contact with one filter plug 25, to a position in the cigarette paper to which the soaked content liquid reached. The results are also shown in Table 3.
  • FIG. 5 is a graph showing a relationship between the viscosity of the content liquid and the length of the content liquid soaked in samples M to P.
  • As shown in Table 3, in the case of sample L containing no thickener, the length of the content liquid soaked was 57 mm after one week, and the content liquid reached the cigarette paper at the tip end of the tobacco rod in all of the 10 cigarettes checked. On the other hand, in the case where the rapeseed oil or SAIB was used as the thickener, the content liquid did not reach the cigarette paper at the tip end of the tobacco rod even after one week. In addition, it can be seen from Table 3 and FIG. 5 that the length of the content liquid soaked in the case where the rapeseed oil is used is shorter than that in the case where SAIB is used, even if the content liquid has the same viscosity.
  • When the soakage length of the content liquid is large, a problem that components of the content liquid penetrating into the cigarette paper are separated by a paper chromatograph phenomenon may sometimes occur. The content liquid containing SAIB as the thickener, however, can suppress the separation of the components of the content liquid, which is caused by the paper chromatograph phenomenon, even after one week, because the soakage length is small. Table 3
    Sample Content liquid Viscosity (25°C) Length of soakage
    MCT (wt%) Rapeseed oil (wt%) SAIB (wt%) Number of samples tested Average (mPa·s) Number of cigarettes tested (cigarettes) Average (mm/week) SD
    L 100.0 - - 3 17.7 10 57.0 -
    M 43.0 57.0 - 3 88.1 10 40.0 5.5
    N 60.0 - 40.0 3 58.7 10 31.9 2.8
    O 50.0 - 50.0 3 90.0 10 16.8 6.3
    P 40.0 - 60.0 3 137.1 10 8.6 2.5

Claims (8)

  1. A cigarette filter comprising: filter plugs separated from each other and arranged through a cavity; a flavor capsule encapsulating a content liquid including a flavor in a shell and provided in the cavity between the filter plugs; and a liquid-impermeable tipping paper and/or filter wrapper wrapped around the filter plugs and the flavor capsule, characterized in that the content liquid comprises the flavor and a thickener and has a viscosity of 30 mPa·s or more.
  2. The cigarette filter according to claim 1, characterized in that the content liquid has a viscosity of 80 mPa·s or more.
  3. The cigarette filter according to claim 1, characterized in that the thickener is selected from the group consisting of liquid thickeners and solid thickeners.
  4. The cigarette filter according to claim 3, characterized in that the liquid thickener is fat and oil or sucrose diacetate hexaisobutyrate (SAIB).
  5. The cigarette filter according to claim 1, characterized in that the content liquid further comprises a solvent and/or a dye and/or an emulsifier.
  6. The cigarette filter according to claim 1, characterized in that the shell of the flavor capsule further comprises a dye.
  7. The cigarette filter according to claim 1, characterized in that the liquid-impermeable tipping paper and/or filter wrapper is a oilproof paper.
  8. A cigarette characterized by comprising: a tobacco rod; and the cigarette filter according to claim 1.
EP11789719.9A 2010-05-31 2011-05-27 Filter for cigarette, and cigarette Active EP2578093B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2010125222 2010-05-31
PCT/JP2011/062251 WO2011152316A1 (en) 2010-05-31 2011-05-27 Filter for cigarette, and cigarette

Publications (3)

Publication Number Publication Date
EP2578093A1 true EP2578093A1 (en) 2013-04-10
EP2578093A4 EP2578093A4 (en) 2014-05-28
EP2578093B1 EP2578093B1 (en) 2018-10-03

Family

ID=45066683

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11789719.9A Active EP2578093B1 (en) 2010-05-31 2011-05-27 Filter for cigarette, and cigarette

Country Status (12)

Country Link
US (1) US20130081644A1 (en)
EP (1) EP2578093B1 (en)
JP (1) JP5487300B2 (en)
KR (1) KR101450424B1 (en)
CN (2) CN102933104A (en)
CA (1) CA2801198C (en)
HK (1) HK1216592A1 (en)
MY (1) MY158242A (en)
RU (1) RU2550333C2 (en)
TW (1) TWI474784B (en)
UA (1) UA103859C2 (en)
WO (1) WO2011152316A1 (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014023555A1 (en) * 2012-08-06 2014-02-13 Philip Morris Products S.A. Method of forming smoking articles with mouth end cavities
WO2014184239A1 (en) * 2013-05-14 2014-11-20 Philip Morris Products S.A. A smoking article including a liquid delivery member and a wrapper
WO2015035137A1 (en) * 2013-09-05 2015-03-12 Schweitzer-Mauduit International, Inc. Coated plug wrap for a smoking article
WO2016016252A1 (en) * 2014-07-31 2016-02-04 Jt International Sa Filter element for a smoking article
EP3072404B1 (en) 2013-11-21 2018-08-15 Japan Tobacco, Inc. Cigarette
EP3340813B1 (en) 2015-08-28 2019-11-27 JT International S.A. Smoking article
WO2021044020A1 (en) * 2019-09-06 2021-03-11 Philip Morris Products S.A. Aerosol-generating device with sealing elements in cavity
US11178907B2 (en) 2013-12-20 2021-11-23 Philip Morris Products S.A. Smoking article having a filter including a capsule
EP3704960B1 (en) 2012-05-30 2022-06-01 Japan Tobacco Inc. Cigarette

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5728581B2 (en) * 2011-08-05 2015-06-03 日本たばこ産業株式会社 cigarette
RU2592351C2 (en) * 2012-01-25 2016-07-20 Джапан Тобакко Инк. Fragrance composition for improving breath having smell of cigarettes
UA115549C2 (en) * 2012-02-21 2017-11-27 ДжейТі ІНТЕРНЕШНЛ СА Smoking article filter
WO2013179428A1 (en) * 2012-05-30 2013-12-05 日本たばこ産業株式会社 Cigarette and packaging members
US10357057B2 (en) * 2012-08-06 2019-07-23 Philip Morris Products S.A. Smoking article with mouth end cavity
CN112189888A (en) 2013-03-28 2021-01-08 菲利普莫里斯生产公司 Smoking article comprising a flavour delivery member
GB201503388D0 (en) 2015-02-27 2015-04-15 British American Tobacco Co A smoking article and filter unit thereof
GB201503389D0 (en) * 2015-02-27 2015-04-15 British American Tobacco Co A smoking article and filter unit therefor
JP6236408B2 (en) * 2015-03-04 2017-11-22 日本たばこ産業株式会社 cigarette
TW201701779A (en) * 2015-07-01 2017-01-16 菲利浦莫里斯製品股份有限公司 Hydrophobic smoking article tube
TW201711575A (en) * 2015-08-13 2017-04-01 菲利浦莫里斯製品股份有限公司 Flavor capsules for smoking articles
KR102236173B1 (en) * 2015-08-28 2021-04-06 제이티 인터내셔널 소시에떼 아노님 Smoking article
CN107772530B (en) * 2016-08-24 2022-06-21 贵州中烟工业有限责任公司 Composite cigarette filter tip for improving cigarette taste and application
MX2019011538A (en) * 2017-04-03 2019-12-11 Philip Morris Products Sa Smoking article mouthpiece configured to receive an insert unit.
GB201715924D0 (en) * 2017-09-29 2017-11-15 British American Tobacco Investments Ltd A filter unit for a smoking article
WO2019069386A1 (en) * 2017-10-03 2019-04-11 日本たばこ産業株式会社 Filtered smoking article
GB201717569D0 (en) 2017-10-25 2017-12-06 British American Tobacco Investments Ltd A filter for a smoking article or an aerosol generating product
KR102190097B1 (en) * 2018-04-04 2020-12-11 이정수 Manufacturing method of flavor filter
CN108652078B (en) * 2018-06-29 2024-05-07 中国烟草总公司郑州烟草研究院 Bead-bursting cigarette with hollow cavity
KR102022909B1 (en) * 2019-06-19 2019-09-19 주식회사 케이티앤지 A smoking article with technology modifying sidestream and a smoking article case including the same
CN110552248A (en) * 2019-06-25 2019-12-10 浙江友丰包装材料有限公司 Antibacterial breathable tipping paper and production process thereof
JP7377373B2 (en) * 2020-10-02 2023-11-09 日本たばこ産業株式会社 Chip paper for tobacco products with capsule filter and tobacco products
WO2024202060A1 (en) * 2023-03-31 2024-10-03 日本たばこ産業株式会社 Flavor inhalation article and electrical heating-type flavor inhalation system

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006117697A1 (en) * 2005-05-03 2006-11-09 Philip Morris Products S.A. Cigarettes and filter subassemblies with sqeezable flavor capsule and methods of manufacture
WO2006136197A1 (en) * 2005-06-21 2006-12-28 V. Mane Fils Smoking device incorporating a breakable capsule, breakable capsule and process for manufacturing said capsule

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3635226A (en) * 1969-06-16 1972-01-18 British American Tobacco Co Tobacco-smoke filters
GB1528657A (en) * 1975-03-13 1978-10-18 Riso Kagaku Corp Stencil paper assembly
US5746231A (en) * 1993-01-11 1998-05-05 Craig Lesser Tobacco smoke filter for removing toxic compounds
AU675573B2 (en) 1993-09-30 1997-02-06 British-American Tobacco Company Limited Improvements relating to tobacco smoke filter elements
US7833543B2 (en) * 1995-06-07 2010-11-16 Durect Corporation High viscosity liquid controlled delivery system and medical or surgical device
JP2003204865A (en) * 2002-01-15 2003-07-22 Ushiwaka Kozo Container for heaping up food such as confectionery
RU2314735C2 (en) * 2002-08-09 2008-01-20 Бритиш Америкэн Тобэкко (Инвестментс) Лимитед Filter-tipped cigarettes and method for manufacturing the same
US7836895B2 (en) 2003-06-23 2010-11-23 R. J. Reynolds Tobacco Company Filtered cigarette incorporating a breakable capsule
JP2007519756A (en) * 2004-01-30 2007-07-19 アンジオテック インターナショナル アーゲー Compositions and methods for treating contracture
US10285431B2 (en) * 2004-12-30 2019-05-14 Philip Morris Usa Inc. Encapsulated flavorant designed for thermal release and cigarette bearing the same
US7578298B2 (en) 2005-02-04 2009-08-25 Philip Morris Usa Inc. Flavor capsule for enhanced flavor delivery in cigarettes
WO2007104908A1 (en) * 2006-03-10 2007-09-20 British American Tobacco (Investments) Limited Smoking article filter
WO2009094859A1 (en) * 2008-01-25 2009-08-06 Rj Reynolds Tobacco Company Process for manufacturing breakable capsules useful in tobacco products
GB0804273D0 (en) * 2008-03-07 2008-04-16 British American Tobacco Co Plug wrap or tipping papaer for smoking articles
US8262550B2 (en) * 2009-03-19 2012-09-11 R. J. Reynolds Tobacco Company Apparatus for inserting objects into a filter component of a smoking article
CN202232976U (en) * 2011-08-26 2012-05-30 武汉黄鹤楼新材料科技开发有限公司 Visual filter tip

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006117697A1 (en) * 2005-05-03 2006-11-09 Philip Morris Products S.A. Cigarettes and filter subassemblies with sqeezable flavor capsule and methods of manufacture
WO2006136197A1 (en) * 2005-06-21 2006-12-28 V. Mane Fils Smoking device incorporating a breakable capsule, breakable capsule and process for manufacturing said capsule

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
H. Abramovic and C. Klofutar: "The temperature dependence of dynamic viscosity for some vegetable oils", Acta Chimica Slovenica , vol. 45, no. 1 7 January 1998 (1998-01-07), pages 69-77, XP002722856, Retrieved from the Internet: URL:http://acta.chem-soc.si/45/45-1-69.pdf [retrieved on 2014-04-07] *
See also references of WO2011152316A1 *

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3704960B1 (en) 2012-05-30 2022-06-01 Japan Tobacco Inc. Cigarette
EP3363304A1 (en) * 2012-08-06 2018-08-22 Philip Morris Products S.a.s. Method of forming smoking articles with mouth end cavities
US11051544B2 (en) 2012-08-06 2021-07-06 Philip Morris Products S.A. Method of forming smoking articles with mouth end cavities
US10123561B2 (en) 2012-08-06 2018-11-13 Philip Morris Products S.A. Method of forming smoking articles with mouth end cavities
WO2014023555A1 (en) * 2012-08-06 2014-02-13 Philip Morris Products S.A. Method of forming smoking articles with mouth end cavities
RU2656810C2 (en) * 2013-05-14 2018-06-06 Филип Моррис Продактс С.А. Smoking article including liquid delivery member and wrapper
US10178878B2 (en) 2013-05-14 2019-01-15 Philip Morris Products S.A. Smoking article including a liquid delivery member and a wrapper
WO2014184239A1 (en) * 2013-05-14 2014-11-20 Philip Morris Products S.A. A smoking article including a liquid delivery member and a wrapper
WO2015035137A1 (en) * 2013-09-05 2015-03-12 Schweitzer-Mauduit International, Inc. Coated plug wrap for a smoking article
US12029236B2 (en) 2013-09-05 2024-07-09 SWM Holdings US, LLC Coated plug wrap for a smoking article
EP3072404B1 (en) 2013-11-21 2018-08-15 Japan Tobacco, Inc. Cigarette
US11178907B2 (en) 2013-12-20 2021-11-23 Philip Morris Products S.A. Smoking article having a filter including a capsule
WO2016016252A1 (en) * 2014-07-31 2016-02-04 Jt International Sa Filter element for a smoking article
EA031921B1 (en) * 2014-07-31 2019-03-29 ДжейТи ИНТЕРНЭШНЛ СА Filter element for a smoking article
EP3340813B1 (en) 2015-08-28 2019-11-27 JT International S.A. Smoking article
WO2021044020A1 (en) * 2019-09-06 2021-03-11 Philip Morris Products S.A. Aerosol-generating device with sealing elements in cavity

Also Published As

Publication number Publication date
CA2801198C (en) 2016-04-19
KR20130012585A (en) 2013-02-04
JP5487300B2 (en) 2014-05-07
TW201204275A (en) 2012-02-01
EP2578093A4 (en) 2014-05-28
RU2550333C2 (en) 2015-05-10
TWI474784B (en) 2015-03-01
WO2011152316A1 (en) 2011-12-08
KR101450424B1 (en) 2014-10-13
HK1216592A1 (en) 2016-11-25
CA2801198A1 (en) 2011-12-08
EP2578093B1 (en) 2018-10-03
UA103859C2 (en) 2013-11-25
US20130081644A1 (en) 2013-04-04
JPWO2011152316A1 (en) 2013-08-01
CN105167184A (en) 2015-12-23
MY158242A (en) 2016-09-30
CN102933104A (en) 2013-02-13
CN105167184B (en) 2019-08-23
RU2012156836A (en) 2014-07-27

Similar Documents

Publication Publication Date Title
EP2578093A1 (en) Filter for cigarette, and cigarette
US9986759B2 (en) Smoking article with liquid delivery material
US11213066B2 (en) Cigarette
PH12016500692B1 (en) Smoking article having a filter including a capsule
EP2229827A1 (en) Cigarette filter, and filter cigarette
UA90140C2 (en) Internal block of cigarette filter and method for making such blocks
UA90128C2 (en) Filter for cigarette, cigarette and method for making thereof
CN104363779A (en) Cigarette and packaging members
KR102386078B1 (en) Reconstituted tobacco sheet comprising clove by-products and a smoking article including the same
RU2591138C1 (en) Cigarette
CN102860584A (en) Ternary composite filter rod for cigarettes and application of ternary composite filter rod in preparation of cigarettes
JP6012291B2 (en) Cigarette filter and cigarette using the same
JP6236408B2 (en) cigarette
KR20170119693A (en) Filters for tobacco products with high-capacity additive
KR102386081B1 (en) Filter for smoking article and smoking article including the same
KR20120086589A (en) Capsule for cigarette filter and manufacturing method thereof
KR20240122316A (en) Filter for smoking article having lyocell tow, smoking article having thereof
CN202907788U (en) Ternary composite filter rod for cigarettes
CN102885402A (en) Capsule filter stick for cigarette and application of capsule filter stick in preparation of cigarette

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20121129

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

DAX Request for extension of the european patent (deleted)
RIC1 Information provided on ipc code assigned before grant

Ipc: A24D 3/14 20060101ALI20140415BHEP

Ipc: A24D 3/04 20060101AFI20140415BHEP

A4 Supplementary search report drawn up and despatched

Effective date: 20140428

17Q First examination report despatched

Effective date: 20160219

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: EXAMINATION IS IN PROGRESS

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: GRANT OF PATENT IS INTENDED

RIC1 Information provided on ipc code assigned before grant

Ipc: A24D 3/06 20060101ALI20180423BHEP

Ipc: A24D 3/04 20060101AFI20180423BHEP

Ipc: A24D 1/02 20060101ALI20180423BHEP

Ipc: A24D 3/14 20060101ALI20180423BHEP

INTG Intention to grant announced

Effective date: 20180511

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

Ref country code: CH

Ref legal event code: NV

Representative=s name: NOVAGRAAF INTERNATIONAL SA, CH

Ref country code: AT

Ref legal event code: REF

Ref document number: 1047662

Country of ref document: AT

Kind code of ref document: T

Effective date: 20181015

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 602011052596

Country of ref document: DE

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20181003

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG4D

REG Reference to a national code

Ref country code: AT

Ref legal event code: MK05

Ref document number: 1047662

Country of ref document: AT

Kind code of ref document: T

Effective date: 20181003

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20181003

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20181003

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20181003

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20181003

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20181003

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20181003

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20181003

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190103

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190203

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190103

Ref country code: AT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20181003

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20181003

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20181003

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190104

Ref country code: AL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20181003

Ref country code: RS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20181003

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190203

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 602011052596

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20181003

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20181003

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20181003

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20181003

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20181003

26N No opposition filed

Effective date: 20190704

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20181003

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20181003

REG Reference to a national code

Ref country code: BE

Ref legal event code: MM

Effective date: 20190531

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20190527

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20181003

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20190527

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20190531

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20181003

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO

Effective date: 20110527

Ref country code: MT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20181003

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20181003

P01 Opt-out of the competence of the unified patent court (upc) registered

Effective date: 20230530

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20240521

Year of fee payment: 14

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20240521

Year of fee payment: 14

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 20240602

Year of fee payment: 14

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20240528

Year of fee payment: 14

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20240524

Year of fee payment: 14