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WO2003013287A1 - Filtre a cigarette - Google Patents

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Publication number
WO2003013287A1
WO2003013287A1 PCT/JP2002/007808 JP0207808W WO03013287A1 WO 2003013287 A1 WO2003013287 A1 WO 2003013287A1 JP 0207808 W JP0207808 W JP 0207808W WO 03013287 A1 WO03013287 A1 WO 03013287A1
Authority
WO
WIPO (PCT)
Prior art keywords
cigarette
filter
filter media
activated carbon
alumina
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/JP2002/007808
Other languages
English (en)
Japanese (ja)
Inventor
Ichiro Atobe
Fumihiro Omori
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
Priority to KR10-2004-7001280A priority Critical patent/KR20040017356A/ko
Priority to CA002455412A priority patent/CA2455412C/fr
Priority to EP20020755724 priority patent/EP1413212A1/fr
Priority to JP2003518312A priority patent/JP3905884B2/ja
Publication of WO2003013287A1 publication Critical patent/WO2003013287A1/fr
Priority to US10/767,057 priority patent/US20040182401A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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
    • A24D3/16—Use of materials for tobacco smoke filters of inorganic materials
    • 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
    • A24D3/048—Tobacco smoke filters characterised by their shape or structure containing additives
    • 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
    • A24D3/02—Manufacture of tobacco smoke filters
    • A24D3/0275—Manufacture of tobacco smoke filters for filters with special features
    • A24D3/0287—Manufacture of tobacco smoke filters for filters with special features for composite filters
    • 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
    • A24D3/16—Use of materials for tobacco smoke filters of inorganic materials
    • A24D3/163—Carbon
    • 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
    • A24D3/16—Use of materials for tobacco smoke filters of inorganic materials
    • A24D3/166—Silicic acid or silicates

Definitions

  • the present invention relates to an improved cigarette letter that can specifically adsorb a specific component in mainstream smoke.
  • Japanese Unexamined Patent Publication (Kokai) No. 63-165609 discloses a deodorant (adsorbent) composed of an inorganic mineral-based porous material supporting ferrous sulfate and L-ascorbic acid. ) Is disclosed, and there is described an example in which this deodorant is added to a cigarette filter.
  • An object of the present invention is to provide a cigarette filter that can selectively remove specific components in mainstream smoke while minimizing the effect on flavor and flavor.
  • the cigarette letter of the present invention includes a plurality of filter sections in which a plurality of filter media are individually wrapped by a wrapping paper, and a molded paper in which a plurality of filter sections are integrally wrapped. And a filter for a cigarette having a tip paper covering a molded paper for connecting to a cigarette portion to form a cigarette. Is characterized in that at least one of the voids between the filter media contains activated carbon and silica / alumina as an adsorbent.
  • the cigarette finoleter of the present invention may contain activated carbon and silica Z alumina as an adsorbent in the rolled paper or the formed paper.
  • the specific structure of the filter for cigarettes according to the present invention is as follows: (1) It has two filter media, and activated carbon and silica / alumina are provided in the space between the two filter media. (2) It has two filter media, and a mixture of activated carbon and silica / alumina is dispersed in one filter media. (3) It has three filter media. Activated carbon and silica alumina are individually filled in two voids between the three filter media. (4) Activated carbon is dispersed in one filter media. One in which silica Z-alumina is dispersed in one of the filter media.
  • another cigarette finale according to the present invention is a cigarette finale having a plurality of filter media in a cigarette holder main body. It is characterized in that at least one of the voids contains activated carbon and silica / alumina as an adsorbent.
  • the structure of the cigarette finoletor according to the present invention is not limited to these, and various modifications are conceivable.
  • FIG. 1 is a diagram schematically showing a configuration of an example of a cigarette finoletor according to the present invention.
  • FIG. 2 is a diagram schematically showing the configuration of another example of a cigarette filter according to the present invention.
  • FIG. 3 is a diagram schematically showing the configuration of another example of a cigarette filter according to the present invention.
  • FIG. 4 is a diagram schematically showing a configuration of still another example of the cigarette filter according to the present invention.
  • FIG. 5 is a sectional view of a cigarette honoleda to which a cigarette finoleter according to the present invention is applied.
  • pyrazines and phenols are considered as specific components in mainstream smoke of cigarettes.
  • the present inventor has found that when activated carbon and silver power / alumina are used in combination as an adsorbent for a filter for cigarette, the specific components in mainstream smoke are produced due to their synergistic effects. It has been found that can be specifically removed, and the present invention has been completed.
  • acetate, paper, nonwoven fabric, and the like are used as the filter medium.
  • the activated carbon among the adsorbents general Yashigara activated carbon is used.
  • silica alumina for example, Kyowa Kagaku Kogyo Co., Ltd., sold under the trade name of 70 OSN, is used. I can do it.
  • S i O 2 content force s 6 3. 0 wt%, A 1 2 0 3 content of force S io. 3 wt%, loss on drying is of 1 4. 5 wt%.
  • the amounts of the activated carbon and the silica-based aluminum are about 10 mm per filter medium.
  • Cigarette finolators that serve as controls
  • FIG. 1 shows an example of a cigarette filter manufactured in this example.
  • the cigarette finoletor 1 was produced as follows. Filament fineness: 2.2 denier, toe fineness: Two filter media (plane finolators) 2 prepared by molding a 40000 denier acetate to a length of 1 Omm are prepared. Wrapping paper 3 was wound around filter media 2 to form two filter sections. A space is provided between the two filter media 2, and in this space, 3 O mg of activated carbon 41 and 3 O mg of silica can be used as an adsorbent 4 (trade name: Kyo-ward 70 (SN) Formed around the two finalizer sections with the mixture filled with 42) Wound paper 5. At this time, the porosity was adjusted so that the apparent density of the adsorbent became 100%.
  • adsorbent 4 trade name: Kyo-ward 70 (SN) Formed around the two finalizer sections with the mixture filled with 42
  • cigarette finolators filled with 30 mg of activated carbon alone or 30 mg of silica Z-alumina alone were also prepared as adsorbents.
  • a filter for cigarettes filled with 60 mg of activated carbon alone or 60 mg of silica / alumina alone was prepared by doubling the amount of the adsorbent as described above.
  • the above cigarette filter was connected to the cigarette part where the tobacco cut was wound with cigarette paper with tape, and as shown in Table 1, various experimental cigarettes with different adsorbents were used. Lett was made. For the cigarette part, we used a roll of commercial cigarette. For these cigarettes, mainstream smoke collection experiments were performed as follows.
  • the cigarette was connected to an automatic smoker via a tube (Tygon). No Cambridge filter is included. The burning length was 40 mm, and the cigarette was smoked by an automatic smoker under standard smoking conditions.
  • the mainstream smoke was collected from a smoke exhaust port into a gas bag (made by Tedlar) pre-filled with He, and adjusted with He so that the total became 8 liters. 5 OmL of gas collected from this gas bag was analyzed by gas chromatography.
  • table 1 shows the transmittance of pyrazines and phenols.
  • the transmittance Ta of these specific components is defined as the peak area of the specific components on the gas chromatograph without an adsorbent (control), A cnt, and the adsorbent.
  • Aa the peak area of a specific component on the gas chromatograph when a is used.
  • the predicted value of the transmittance of the filter using 60 mg of activated carbon is a value obtained by squaring the measured value of the transmittance of the filter using 30 mg of activated carbon.
  • the predicted transmittance of a filter using silica-o-alumina 6 O mg was calculated by measuring the measured transmittance of a filter using silica-force / alumina 30 mg. It is the value raised to the power.
  • the predicted value of the transmittance when two or more adsorbents are used in combination in Table 1 is a calculated value of the transmittance predicted from the transmittance of each single adsorbent. That is, when the transmittance (actual value) of the specific component when the adsorbent a is used is Ta and the transmittance (actual value) of the specific component when the adsorbent b is used is Tb, The predicted value is expressed as (T a XT b).
  • FIG. 2 shows another example of a cigarette flutter according to the present invention.
  • This cigarette letter 1 is prepared by preparing three filter media (plane letters) 2 in which acetate is formed, and wrapping a paper roll 3 around each filter medium 2 to form a three letter filter. A section is formed, and activated carbon 41 and silica / alumina (trade name Kyoyo) are used as adsorbent 4 in the two gaps between the three filter media 2 on the cutting side and the suction side.
  • One word 700 SN) 4 2 was individually filled, and the molded paper 5 was wound around three filter sections.
  • FIG. 2 shows an example in which activated carbon 41 is filled on the suction side and silica alumina 42 is filled on the engraved side.On the contrary, silica alumina on the suction side and the engraved side are filled. Activated carbon may be filled.
  • FIG. 3 shows still another example of the cigarette flutter according to the present invention.
  • This cigarette letter 1 is formed by dispersing a filter medium (plane filter) 2 formed of acete, and activated carbon 41 and silica / alumina 42 as adsorbents. Prepared acetate strength, filter media (charcoal filter) 21 are prepared, and wrapping paper 3 is wound around each filter media 2 and 21 to form two free sections. It is formed by wrapping molded paper 5 around two freight sections.
  • FIG. 4 shows still another example of the cigarette filter according to the present invention.
  • This cigarette letter 1 is acetate , A filter medium (plane filter) 2 formed from, and a filter medium (charcoal filter) 21 made of acetate formed by dispersing activated carbon 41 as an adsorbent.
  • a filter medium 22 consisting of an acetate molded by dispersing silica alumina 42 as an adsorbent is prepared, and a web 3 is wound around each of the filter mediums 2, 21 and 22. It is made up of three winding sections, and the paper 5 is wound around the three filtering sections.
  • the arrangement of the filter medium 21 and the filter medium 22 is not limited, and either may be arranged on the cutting side.
  • activated carbon and silica Z-alumina may be contained as adsorbents in the molded paper.
  • the cigarette finalizer according to the present invention can also be applied in the form of a cigarette holder as shown in FIG.
  • This filter for cigarettes is provided with two filter media 2 inside a cylindrical cigarette holder body 51 having a suction port 52 formed at one end, and two filter media 2. The space between them was filled with a mixture of activated carbon 41 and silica / alumina 42 as adsorbent 4.
  • any of the cigarette filters described above specifically adsorb pyrazines and phenols due to the synergistic effect of activated carbon and silica / alumina. be able to.
  • Industrial applicability any of the cigarette filters described above specifically adsorb pyrazines and phenols due to the synergistic effect of activated carbon and silica / alumina. be able to.
  • a cigarette finolator capable of selectively removing specific components in mainstream smoke while minimizing the effect on flavor and flavor.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Cigarettes, Filters, And Manufacturing Of Filters (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)

Abstract

L'invention concerne un filtre à cigarette comprenant une pluralité de sections filtrantes dans lesquelles plusieurs matières filtrantes (2) sont enroulées individuellement dans des papiers (3) d'enroulement, un papier (5) de mise en forme recouvrant entièrement la pluralité de sections filtrantes, et un papier fin recouvrant le papier de mise en forme afin d'obtenir une cigarette par la connexion à la partie cigarette. Du charbon actif (41) et de la silice/alumine (42) servent d'adsorbants dans au moins une des matières filtrantes (2) et l'espace entre les matières filtrantes (2).
PCT/JP2002/007808 2001-08-02 2002-07-31 Filtre a cigarette Ceased WO2003013287A1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
KR10-2004-7001280A KR20040017356A (ko) 2001-08-02 2002-07-31 궐련용 필터
CA002455412A CA2455412C (fr) 2001-08-02 2002-07-31 Filtre a cigarette
EP20020755724 EP1413212A1 (fr) 2001-08-02 2002-07-31 Filtre a cigarette
JP2003518312A JP3905884B2 (ja) 2001-08-02 2002-07-31 シガレット用フィルター
US10/767,057 US20040182401A1 (en) 2001-08-02 2004-01-30 Cigarette filter

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2001-235202 2001-08-02
JP2001235202 2001-08-02

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US10/767,057 Continuation US20040182401A1 (en) 2001-08-02 2004-01-30 Cigarette filter

Publications (1)

Publication Number Publication Date
WO2003013287A1 true WO2003013287A1 (fr) 2003-02-20

Family

ID=19066688

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2002/007808 Ceased WO2003013287A1 (fr) 2001-08-02 2002-07-31 Filtre a cigarette

Country Status (8)

Country Link
US (1) US20040182401A1 (fr)
EP (1) EP1413212A1 (fr)
JP (1) JP3905884B2 (fr)
KR (1) KR20040017356A (fr)
CN (1) CN100367886C (fr)
CA (1) CA2455412C (fr)
RU (1) RU2260359C2 (fr)
WO (1) WO2003013287A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004086888A3 (fr) * 2003-04-02 2005-05-12 Philip Morris Prod Filtre renfermant un sorbant monolithique segmente permettant la filtration en phase gazeuse
WO2007102634A1 (fr) * 2006-03-09 2007-09-13 Postech Academy-Industry Foundation Cigarettes avec adjonction de cucurbituril et procédé de fabrication
WO2008018617A1 (fr) * 2006-08-10 2008-02-14 Daicel Chemical Industries, Ltd. Filtre à cigarette

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0426615D0 (en) * 2004-12-03 2005-01-05 Filtrona Suisse Sa Tobacco smoke filter
FR2915062B1 (fr) * 2007-04-17 2011-04-08 Laurent Schwartz Utilisation de moyens d'absorption du co2 dans un filtre de cigarette pour reduire le taux de co2 inhale par un fumeur.
WO2010001493A1 (fr) * 2008-07-02 2010-01-07 ダイセル化学工業株式会社 Matériau de filtre comprenant du gel de silice et filtre de cigarette utilisant celui-ci
PL215954B1 (pl) * 2010-08-13 2014-02-28 Int Tobacco Machinery Poland Sposób wytwarzania wielosegmentowych sztabek filtrowych
US9655382B2 (en) * 2014-09-16 2017-05-23 John R. Zade Responsible cigarette holder
EP3967159A1 (fr) * 2020-09-10 2022-03-16 Andreas Setzer Dispositif de filtration de la fumée
WO2025237456A1 (fr) * 2024-05-14 2025-11-20 Eylem Krimmer Filtre pour la consommation de cannabis ou de tabac

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6168135A (ja) * 1984-09-11 1986-04-08 Topy Ind Ltd たばこ煙中の一酸化炭素除去剤
JPS63160659A (ja) * 1986-12-25 1988-07-04 日本たばこ産業株式会社 脱臭剤
JPH04267871A (ja) * 1990-11-19 1992-09-24 Cigarette Components Ltd 煙改質用粒状添加剤を含むフィルタおよびフィルタ付き紙巻煙草
JPH09299073A (ja) * 1996-05-11 1997-11-25 Takashi Sato 健康煙草
JPH11235169A (ja) * 1998-02-23 1999-08-31 Daicel Chem Ind Ltd たばこエレメントおよびその製造方法
JP2000246095A (ja) * 1999-02-26 2000-09-12 Mazda Motor Corp 吸着処理剤を備えた物品
JP2001000165A (ja) * 1999-06-22 2001-01-09 Tokyo Bio Ceramics Kenkyusho:Kk フィルター付きタバコ及びタバコ用フィルター

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1009535A (en) * 1963-10-15 1965-11-10 British American Tobacco Co Improvements in tobacco-smoke filters
GB1103823A (en) * 1964-06-10 1968-02-21 British American Tobacco Co Improvements relating to tobacco-smoke filters
US3658069A (en) * 1970-02-17 1972-04-25 Stanford Research Inst Filter for reducing the level of carbon monoxide in tobacco smoke
US4038992A (en) * 1975-09-29 1977-08-02 The Japan Tobacco & Salt Public Corporation Granular composition for tobacco filter
CN2031615U (zh) * 1988-06-18 1989-02-01 仇叔椗 微孔过滤吸附香烟嘴
SE500634C2 (sv) * 1992-12-22 1994-08-01 House Of Blend Ab Filtercigarett
CN1145756A (zh) * 1995-09-20 1997-03-26 李魏贵 无毒香烟、雪茄
CN1128588C (zh) * 1998-11-09 2003-11-26 日本烟草产业株式会社 带过滤嘴香烟
US6779529B2 (en) * 2001-08-01 2004-08-24 Brown & Williamson Tobacco Corporation Cigarette filter
EP1321534B1 (fr) * 2001-11-21 2006-02-08 Shipley Company LLC Procédé de récupération de métaux catalytiques

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6168135A (ja) * 1984-09-11 1986-04-08 Topy Ind Ltd たばこ煙中の一酸化炭素除去剤
JPS63160659A (ja) * 1986-12-25 1988-07-04 日本たばこ産業株式会社 脱臭剤
JPH04267871A (ja) * 1990-11-19 1992-09-24 Cigarette Components Ltd 煙改質用粒状添加剤を含むフィルタおよびフィルタ付き紙巻煙草
JPH09299073A (ja) * 1996-05-11 1997-11-25 Takashi Sato 健康煙草
JPH11235169A (ja) * 1998-02-23 1999-08-31 Daicel Chem Ind Ltd たばこエレメントおよびその製造方法
JP2000246095A (ja) * 1999-02-26 2000-09-12 Mazda Motor Corp 吸着処理剤を備えた物品
JP2001000165A (ja) * 1999-06-22 2001-01-09 Tokyo Bio Ceramics Kenkyusho:Kk フィルター付きタバコ及びタバコ用フィルター

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004086888A3 (fr) * 2003-04-02 2005-05-12 Philip Morris Prod Filtre renfermant un sorbant monolithique segmente permettant la filtration en phase gazeuse
WO2007102634A1 (fr) * 2006-03-09 2007-09-13 Postech Academy-Industry Foundation Cigarettes avec adjonction de cucurbituril et procédé de fabrication
WO2008018617A1 (fr) * 2006-08-10 2008-02-14 Daicel Chemical Industries, Ltd. Filtre à cigarette

Also Published As

Publication number Publication date
JP3905884B2 (ja) 2007-04-18
CA2455412C (fr) 2008-01-29
CA2455412A1 (fr) 2003-02-20
RU2260359C2 (ru) 2005-09-20
US20040182401A1 (en) 2004-09-23
CN1538816A (zh) 2004-10-20
CN100367886C (zh) 2008-02-13
KR20040017356A (ko) 2004-02-26
JPWO2003013287A1 (ja) 2004-11-25
EP1413212A1 (fr) 2004-04-28

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