US20040200490A1 - Cigarette filter and filter-tipped cigarette - Google Patents

Cigarette filter and filter-tipped cigarette Download PDF

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Publication number
US20040200490A1
US20040200490A1 US10/834,026 US83402604A US2004200490A1 US 20040200490 A1 US20040200490 A1 US 20040200490A1 US 83402604 A US83402604 A US 83402604A US 2004200490 A1 US2004200490 A1 US 2004200490A1
Authority
US
United States
Prior art keywords
filter
cigarette
added
mainstream smoke
filter section
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.)
Abandoned
Application number
US10/834,026
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English (en)
Inventor
Michihiro Inagaki
Kazuhiko Katayama
Takako Ikeda
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
Assigned to JAPAN TOBACCO INC. reassignment JAPAN TOBACCO INC. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: IKEDA, TAKAKO, INAGAKI, MICHIHIRO, KATAYAMA, KAZUHIKO
Publication of US20040200490A1 publication Critical patent/US20040200490A1/en
Abandoned legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D3/00—Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
    • A24D3/06—Use of materials for tobacco smoke filters
    • A24D3/14—Use of materials for tobacco smoke filters of organic materials as additive
    • 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

Definitions

  • the present invention relates to a cigarette filter and a filter-tipped cigarette, and more specifically, to a cigarette filter that can efficiently filter the tobacco mainstream smoke when the cigarette is smoked, improving the tobacco taste, as well as a cigarette having such a filter.
  • 44-29317 discloses a tobacco filter prepared by adding specified amounts of charcoal and polyalkylene glycol to a cellulose acetate fiber tow.
  • Jpn. Pat. Appln. KOKOKU Publication No. 46-12957 discloses a tobacco filter prepared by adding various oils/fats and a sorbitan derivative to a filter material.
  • an object of the present invention is to provide a cigarette filter that can efficiently filtrate the tobacco mainstream smoke for each component of the smoke.
  • filters added with liquid fatty acids having a low viscosity i.e., a viscosity of 1 to 300 cP (e.g., lauric acid, oleic acid, linoleic acid and linolenic acid) are effective for the filtration of the entire tobacco mainstream smoke
  • filters added with liquid fatty acid esters having a low viscosity i.e., a viscosity of 1 to 300 cP
  • filters added with liquid fatty acid esters having a low viscosity i.e., a viscosity of 1 to 300 cP
  • natural fats/oils such as olive oil, castor oil, rapeseed oil, corn oil, safflower oil and grape seed oil
  • filters added with glycols having a low viscosity i.e., a viscosity of 1 to 300 cP (such as polyethyleneglycol and propylenegly
  • the vapor pressure of the components in the tobacco mainstream smoke that are absorbed by these additives is 1 to 4000 Pa, whereas the vapor pressure of the components in the tobacco mainstream smoke that are adsorbed by charcoal is 100 to 100,000 Pa, thus indicating a significant difference between the former and the latter.
  • the tobacco filter is divided into two or more sections and different types of additives (mainstream smoke component-removing agents) are added to respective sections.
  • mainstream smoke component-removing agents mainstream smoke component-removing agents
  • a cigarette filter comprising two or more filter sections of the following three filter sections (A) to (C):
  • the use of olive oil as the additive improves the flavor of the tobacco smoke, which is preferable.
  • the use of propylene glycol as the glycol improves the filtration efficiency for, especially, the high polarity components in the tobacco mainstream smoke.
  • the filter section (C) be provided on a downstream side of the filter section (A). and/or filter section (B).
  • the cigarette filter of the present invention may include a plain filter section at the most downstream position.
  • a cigarette having a filter of the present invention provided at one end of a tobacco rod.
  • the upstream and downstream are based on the flowing direction of the mainstream smoke when the cigarette is smoked.
  • the tobacco rod side is an upstream side and the mouthend side is a downstream side.
  • FIGURE is a partially developed perspective view of a filter-tipped cigarette according to an embodiment of the present invention.
  • FIGURE is a partially developed perspective view of a filter-tipped cigarette according to an embodiment of the present invention.
  • the FIGURE should be interpreted as also showing a cigarette filter according to an embodiment of the present invention.
  • a filter-tipped cigarette 10 shown in the FIGURE comprises a tobacco rod 20 including an ordinary tobacco filler material 201 such as cut tobacco and a tobacco wrapper paper sheet 202 , and a filter 30 attached to an end of the tobacco rod 20 .
  • the structure of the portion other than the filter portion is similar to that of an ordinary filter-tipped cigarette. Therefore, an ordinary tobacco rod can be employed as the tobacco rod 20 .
  • the filter comprises two or more filter sections of the following filter sections: (A) a filter section added with a liquid fatty acid ester or a liquid fatty acid, having a viscosity of 1 to 300 cP as a mainstream smoke component-removing agent; (B) a filter section added with a glycol having a viscosity of 1 to 300 cP as a mainstream smoke component-removing agent; and (C) a filter section added with a charcoal as a mainstream smoke component-removing agent.
  • A a filter section added with a liquid fatty acid ester or a liquid fatty acid, having a viscosity of 1 to 300 cP as a mainstream smoke component-removing agent
  • B a filter section added with a glycol having a viscosity of 1 to 300 cP as a mainstream smoke component-removing agent
  • C a filter section added with a charcoal as a mainstream smoke component-removing agent.
  • liquid fatty acid ester added to the filter section (A) are natural fats/oils such as olive oil, castor oil, rapeseed oil, corn oil, safflower oil and grape seed oil.
  • liquid fatty acid added to the filter section (A) are lauric acid, oleic acid, linoleic acid and linolenic acid.
  • a preferable example of the mainstream smoke component-removing agent added to the filter section (A) is olive oil.
  • the flavor of olive oil matches well with the flavor of tobacco.
  • the amount of liquid fatty acid ester or fatty acid added is preferably 5% to 30% of the weight of the filter fibers.
  • glycols having a viscosity of 1 cP to 300 cP added to the filter section (B) are polyethylene glycol and propylene glycol. Of these, propylene glycol is preferable.
  • the amount of glycol added is preferably 5% to 30% of the weight of the filter fibers.
  • charcoal added to the filter section (C) is charcoal used for an ordinary so-called charcoal filter, such as coconut shell charcoal.
  • the amount of charcoal added is preferably 10 to 80 mg per 10 mm length of filter (circumference of filter 16.8 mm to 25.8 mm).
  • the filter 30 includes, e.g., four discrete filter sections, that is, from the upstream side, a first filter section 301 , a second filter section 302 , a third filter section 303 and a fourth filter section 304 .
  • the first filter section 301 provided in contact with the tobacco rod 20 is constituted by the above-described filter section (A)
  • the second filter section 302 is constituted by the above-described filter section (B)
  • the third filter section 303 is constituted by the above-described filter section (C).
  • the fourth filter section 304 located at the most downstream side is constituted by a plain filter intended to prevent the falling off of the charcoal in the third filter section 303 constituted by the above-described filter section (C).
  • the plain filter does not contain any additive to remove the mainstream smoke, and it is made of substantially a filter material.
  • Each of the first to the fourth filter sections 301 to 304 is formed from a filter material used in ordinary cigarette filters, for example, paper, or a tow of synthetic fibers such as cellulose rayon fibers, cellulose acetate fibers or vinylon fibers.
  • a filter material used in ordinary cigarette filters for example, paper, or a tow of synthetic fibers such as cellulose rayon fibers, cellulose acetate fibers or vinylon fibers.
  • the mainstream smoke component-removing agents for the filter sections 301 and 302 can be added thereto by spraying or coating them to the respective filter materials.
  • the charcoal used in the third filter section can be added thereto by dispersedly mixing it into the filter material by an ordinary method.
  • any one of the filter sections 301 to 303 can be omitted from the structure of the filter according to the preferred embodiment. Further, the filter section 304 can be omitted as well.
  • the cigarette filter of the present invention most preferably has the filter section (C) on the downstream side of the filter sections (A) and/or (B). With this stricture, the filtration efficiency is improved in a synergetic manner. Further, when the filter section (C) is placed on the downstream side, the decrease with time in the filtration efficiency of the charcoal for the tobacco mainstream smoke can be suppressed.
  • each of the first to the fourth filter sections 301 to 304 is individually wrapped with a respective filter wrapper paper sheet (not shown) as required, and then they are wrapped with one wrapper paper sheet 310 to integrate them together.
  • the thus formed filter 30 is attached to one end of the tobacco rod 20 by an ordinary tipping paper 320 .
  • the filtration efficiency for the mainstream smoke components was evaluated for each of cigarette filters to which olive oil, propylene glycol and linoleic acid (each available from Wako Pure Chemical Industries, Ltd.) were added respectively as the mainstream smoke component-removing agent.
  • a plasticizer-free cellulose acetate filter (3Y/43000) was used for each case.
  • the mainstream smoke component-removing agent was sprayed in the form of fine particles onto the cigarette filter in amount of 35 mg, using an atomizer.
  • the tobacco rod that of Mild Seven Super Light available from Japan Tobacco Inc. was used.
  • the filter added with the respective mainstream smoke component-removing agent was attached to the tobacco rod with an adhesive tape, providing a sample cigarette.
  • a sample filter section (charcoal filter) was prepared, which was added with charcoal used for ordinary cigarettes in an amount of 30 mg in the form of a filling layer (having a thickness of 2 mm).
  • a plain cellulose acetate filter section (3Y/43000) having a length of 5 mm was placed on a downstream side of the charcoal filter section. This filter was attached to one end of a tobacco rod similar to that of Example 1.
  • the obtained sample was compared with the same sample except that no charcoal was added, in terms of each mainstream smoke component, and the filtration efficiency was evaluated by an indirect method.
  • the analyzing method employed was the same as in Example 1.
  • the filter prepared in (1) above was placed on the downstream side of the olive oil-added filter section such that the charcoal filter section was disposed in contact with the olive oil-added filter section.
  • the obtained filter was attached to a tobacco rod, and the filtration efficiency for the mainstream smoke component was evaluated similarly.
  • the calculated value for the combination of the charcoal filter section with the olive oil-added filter section is a simply calculated value based on each of the filter sections used singly.
  • the comparison between the calculated values and the found values indicates that the filtration efficiency does not show a significant difference for the high boiling point components, but is significantly higher in the found values for the low boiling point components. From the results, it is seen that when a filter section added with charcoal as a mainstream smoke component-removing agent is combined, on the downstream side, with another filter section added with another mainstream smoke component-removing agent, a more excellent effect (synergetic effect) can be obtained as compared to the total effects obtained when the filter sections are used singly.
  • a cigarette filter that can efficiently filtrate the tobacco mainstream smoke for each component thereof, and a filter-tipped cigarette comprising such a filter.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Cigarettes, Filters, And Manufacturing Of Filters (AREA)
US10/834,026 2001-10-30 2004-04-29 Cigarette filter and filter-tipped cigarette Abandoned US20040200490A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2001-332651 2001-10-30
JP2001332651 2001-10-30
PCT/JP2002/010989 WO2003037114A1 (fr) 2001-10-30 2002-10-23 Filtre pour cigarette et cigarette avec filtre

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2002/010989 Continuation WO2003037114A1 (fr) 2001-10-30 2002-10-23 Filtre pour cigarette et cigarette avec filtre

Publications (1)

Publication Number Publication Date
US20040200490A1 true US20040200490A1 (en) 2004-10-14

Family

ID=19148038

Family Applications (1)

Application Number Title Priority Date Filing Date
US10/834,026 Abandoned US20040200490A1 (en) 2001-10-30 2004-04-29 Cigarette filter and filter-tipped cigarette

Country Status (10)

Country Link
US (1) US20040200490A1 (zh)
EP (1) EP1442667A4 (zh)
JP (1) JP3910175B2 (zh)
KR (1) KR100607539B1 (zh)
CN (1) CN1284492C (zh)
CA (1) CA2464149A1 (zh)
RU (1) RU2264767C2 (zh)
TW (1) TWI243026B (zh)
UA (1) UA75987C2 (zh)
WO (1) WO2003037114A1 (zh)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080314007A1 (en) * 2006-01-18 2008-12-25 Nissei Bio Co., Ltd. Filter for Air Conditioner Capable of Removing Toxic Substances
US20090183745A1 (en) * 2005-10-12 2009-07-23 Nissei Bio Company, Limited Cigarette Filter
WO2011015861A3 (en) * 2009-08-04 2011-03-31 British American Tobacco (Investments) Limited Filter for a smoking article
US9204669B2 (en) 2010-11-01 2015-12-08 Daicel Corporation Cigarette filter, process for producing the same, and cigarette
US20150374031A1 (en) * 2011-07-14 2015-12-31 R.J. Reynolds Tobacco Company Segmented cigarette filter for selective smoke filtration
US20170099871A1 (en) * 2014-06-19 2017-04-13 Daicel Corporation Cigarette filter tow band
US9949504B2 (en) 2011-11-30 2018-04-24 Philip Morris Products S.A. Smoking article with a ventilated mouthpiece comprising first and second airflow pathways
US11206865B2 (en) 2016-07-04 2021-12-28 Japan Tobacco Inc. Adsorbent, filter for smoking product which is provided with said adsorbent, and smoking product provided with said filter for smoking products

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EA010140B1 (ru) * 2006-05-08 2008-06-30 Эльдар Бахрам Оглы Сариев Сигаретный фильтр
BRPI0719373B1 (pt) * 2006-11-29 2022-05-10 Imperial Tobacco Canada Limited Haste de filtro melhoradora de fumaça, artigo para fumar, e, método para produzir hastes de filtro melhoradoras de fumaça
GB0910373D0 (en) * 2009-06-16 2009-07-29 Filtrona Int Ltd Tabacco smoke filter
CN102144809B (zh) * 2011-05-17 2012-08-15 何金星 卷烟添加物的制造方法及其应用
CN103070477B (zh) * 2013-01-16 2014-06-11 湖南中烟工业有限责任公司 氨基丙醇类化合物的应用
CN103504474B (zh) * 2013-10-16 2015-06-17 红云红河烟草(集团)有限责任公司 一种有效改善滤芯吸水性的卷烟滤棒
JP2017077181A (ja) * 2014-02-14 2017-04-27 日本たばこ産業株式会社 フィルター付シガレット
ES2717550B2 (es) 2017-12-21 2020-02-28 Univ Alicante Filtro combinado para la eliminacion de alquitranes y compuestos toxicos del humo del tabaco
JPWO2023112885A1 (zh) * 2021-12-13 2023-06-22

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3026226A (en) * 1957-12-09 1962-03-20 Eastman Kodak Co Process of manufacturing filters
US3279476A (en) * 1964-04-16 1966-10-18 Beatrice Foods Co Cigarette filter
US3368566A (en) * 1964-06-17 1968-02-13 Souren Z. Avediklan Filter cigarette
US3405717A (en) * 1966-11-15 1968-10-15 American Filtrona Corp Method of associating a filter section with a tobacco section or with one or more additional filter sections
US3635226A (en) * 1969-06-16 1972-01-18 British American Tobacco Co 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
US3667478A (en) * 1969-07-17 1972-06-06 Nelson J Waterbury Filter cigarette incorporating vitamin a
US4266561A (en) * 1978-04-10 1981-05-12 Brown & Williamson Tobacco Corporation Tobacco smoke filtering compositions
US5038803A (en) * 1988-02-04 1991-08-13 Hercules Incorporated Method and device for control of by-products from cigarette smoke
US5501238A (en) * 1993-01-11 1996-03-26 Von Borstel; Reid W. Cigarette filter containing a humectant

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1043080A (en) * 1965-08-24 1966-09-21 Adolf Hermann Fleischmann Improvements in or relating to filter elements for tobacco smoke
GB1307363A (en) * 1969-06-03 1973-02-21 Dikstein S Cigarettes and tips therefor
GB9122448D0 (en) * 1991-10-23 1991-12-04 Rothmans Int Tobacco Filter tip cigarette
EP0868126B1 (en) * 1995-12-19 2001-10-17 Craig Lesser Cigarette filter containing microcapsules
JP2000246095A (ja) * 1999-02-26 2000-09-12 Mazda Motor Corp 吸着処理剤を備えた物品

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3026226A (en) * 1957-12-09 1962-03-20 Eastman Kodak Co Process of manufacturing filters
US3279476A (en) * 1964-04-16 1966-10-18 Beatrice Foods Co Cigarette filter
US3368566A (en) * 1964-06-17 1968-02-13 Souren Z. Avediklan Filter cigarette
US3405717A (en) * 1966-11-15 1968-10-15 American Filtrona Corp Method of associating a filter section with a tobacco section or with one or more additional filter sections
US3635226A (en) * 1969-06-16 1972-01-18 British American Tobacco Co Tobacco-smoke filters
US3667478A (en) * 1969-07-17 1972-06-06 Nelson J Waterbury Filter cigarette incorporating vitamin a
US3658069A (en) * 1970-02-17 1972-04-25 Stanford Research Inst Filter for reducing the level of carbon monoxide in tobacco smoke
US4266561A (en) * 1978-04-10 1981-05-12 Brown & Williamson Tobacco Corporation Tobacco smoke filtering compositions
US5038803A (en) * 1988-02-04 1991-08-13 Hercules Incorporated Method and device for control of by-products from cigarette smoke
US5501238A (en) * 1993-01-11 1996-03-26 Von Borstel; Reid W. Cigarette filter containing a humectant

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090183745A1 (en) * 2005-10-12 2009-07-23 Nissei Bio Company, Limited Cigarette Filter
US20080314007A1 (en) * 2006-01-18 2008-12-25 Nissei Bio Co., Ltd. Filter for Air Conditioner Capable of Removing Toxic Substances
WO2011015861A3 (en) * 2009-08-04 2011-03-31 British American Tobacco (Investments) Limited Filter for a smoking article
US9204669B2 (en) 2010-11-01 2015-12-08 Daicel Corporation Cigarette filter, process for producing the same, and cigarette
US20150374031A1 (en) * 2011-07-14 2015-12-31 R.J. Reynolds Tobacco Company Segmented cigarette filter for selective smoke filtration
US9949504B2 (en) 2011-11-30 2018-04-24 Philip Morris Products S.A. Smoking article with a ventilated mouthpiece comprising first and second airflow pathways
US20170099871A1 (en) * 2014-06-19 2017-04-13 Daicel Corporation Cigarette filter tow band
US10470490B2 (en) * 2014-06-19 2019-11-12 Daicel Corporation Cigarette filter tow band
US11206865B2 (en) 2016-07-04 2021-12-28 Japan Tobacco Inc. Adsorbent, filter for smoking product which is provided with said adsorbent, and smoking product provided with said filter for smoking products

Also Published As

Publication number Publication date
RU2264767C2 (ru) 2005-11-27
CA2464149A1 (en) 2003-05-08
JPWO2003037114A1 (ja) 2005-02-17
RU2004116341A (ru) 2005-03-10
EP1442667A1 (en) 2004-08-04
CN1578631A (zh) 2005-02-09
TWI243026B (en) 2005-11-11
KR100607539B1 (ko) 2006-08-02
WO2003037114A1 (fr) 2003-05-08
CN1284492C (zh) 2006-11-15
JP3910175B2 (ja) 2007-04-25
EP1442667A4 (en) 2005-11-02
UA75987C2 (en) 2006-06-15
KR20040058205A (ko) 2004-07-03

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Legal Events

Date Code Title Description
AS Assignment

Owner name: JAPAN TOBACCO INC., JAPAN

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:INAGAKI, MICHIHIRO;KATAYAMA, KAZUHIKO;IKEDA, TAKAKO;REEL/FRAME:015287/0020

Effective date: 20040407

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION