EP2578093B1 - Filter for cigarette, and cigarette - Google Patents

Filter for cigarette, and cigarette Download PDF

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Publication number
EP2578093B1
EP2578093B1 EP11789719.9A EP11789719A EP2578093B1 EP 2578093 B1 EP2578093 B1 EP 2578093B1 EP 11789719 A EP11789719 A EP 11789719A EP 2578093 B1 EP2578093 B1 EP 2578093B1
Authority
EP
European Patent Office
Prior art keywords
filter
cigarette
content liquid
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.)
Active
Application number
EP11789719.9A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2578093A1 (en
EP2578093A4 (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

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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
    • A24D3/06—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.
  • WO 2006/117697 describes cigarette filters comprising capsules containing flavor components wherein the capsules are provided in a cavity between a first and second absorbent member.
  • WO 2006/136197 describes a smoking device incorporating a breakable capsule in its filter element.
  • 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 filter wrapper wrapped around the filter plugs and the flavor capsule, the liquid-impermeable filter wrapper is a oilproof paper, characterized in that the content liquid comprises the flavor, a solvent, and a thickener, the solvent is medium-chain fatty acid triglyceride (MCT), the thickener is sucrose diacetate hexaisobutyrate (SAIB) and the content liquid has a viscosity of 30 mPa ⁇ s or more at 25°C, wherein the liquid-impermeable filter wrapper is directly brought into contact with the flavor capsule and is not a film or a fluorine-containing resin.
  • MCT medium-chain fatty acid triglyceride
  • SAIB sucrose diacetate hexaiso
  • a cigarette characterized by comprising: a tobacco rod; and the above cigarette filter.
  • 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 sucrose diacetate hexaisobutyrate (SAIB) as a thickener to the content liquid in the flavor capsule to adjust a viscosity of the content liquid to 30 mPa ⁇ s or more.
  • SAIB sucrose diacetate hexaisobutyrate
  • 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.
  • sucrose diacetate hexaisobutyrate SAIB
  • SAIB is used as the thickener, preferably 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 filter wrapper (a material paper, a shaping paper or a plug wrapping paper) is liquid-impermeable, which means that it is oil-resistant.
  • An oilproof paper is used for the shaping paper 27,of at least 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 weght (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.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Cigarettes, Filters, And Manufacturing Of Filters (AREA)
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 (ja) 2010-05-31 2011-05-27 シガレット用フィルターおよびシガレット

Publications (3)

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

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EP11789719.9A Active EP2578093B1 (en) 2010-05-31 2011-05-27 Filter for cigarette, and cigarette

Country Status (12)

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

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RU2795920C1 (ru) * 2019-09-06 2023-05-15 Филип Моррис Продактс С.А. Устройство, генерирующее аэрозоль, с уплотнительными элементами в полости, изделие и система

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CA2801198A1 (en) 2011-12-08
RU2012156836A (ru) 2014-07-27
CN105167184A (zh) 2015-12-23
RU2550333C2 (ru) 2015-05-10
TWI474784B (zh) 2015-03-01
US20130081644A1 (en) 2013-04-04
KR20130012585A (ko) 2013-02-04
WO2011152316A1 (ja) 2011-12-08
UA103859C2 (ru) 2013-11-25
EP2578093A1 (en) 2013-04-10
HK1216592A1 (zh) 2016-11-25
JPWO2011152316A1 (ja) 2013-08-01
KR101450424B1 (ko) 2014-10-13
JP5487300B2 (ja) 2014-05-07
EP2578093A4 (en) 2014-05-28
CN105167184B (zh) 2019-08-23
TW201204275A (en) 2012-02-01
CA2801198C (en) 2016-04-19
CN102933104A (zh) 2013-02-13

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