EP0432927A1 - Improved cigarette - Google Patents

Improved cigarette Download PDF

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Publication number
EP0432927A1
EP0432927A1 EP90312761A EP90312761A EP0432927A1 EP 0432927 A1 EP0432927 A1 EP 0432927A1 EP 90312761 A EP90312761 A EP 90312761A EP 90312761 A EP90312761 A EP 90312761A EP 0432927 A1 EP0432927 A1 EP 0432927A1
Authority
EP
European Patent Office
Prior art keywords
cigarette
tobacco
wrapper
cigarette according
filler
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.)
Withdrawn
Application number
EP90312761A
Other languages
German (de)
English (en)
French (fr)
Inventor
Maurice Dominique Bettinelli
Marc-Robert Chemla
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.)
Philip Morris Products SA
Original Assignee
Fabriques de Tabac Reunies SA
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 Fabriques de Tabac Reunies SA filed Critical Fabriques de Tabac Reunies SA
Publication of EP0432927A1 publication Critical patent/EP0432927A1/en
Withdrawn legal-status Critical Current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
    • A24D1/00—Cigars; Cigarettes
    • A24D1/02—Cigars; Cigarettes with special covers

Definitions

  • the invention relates to an improved cigarette.
  • Cigarettes of the invention show reduced sidestream smoke emission. Recently, considerable effort has gone into the development of cigarettes show low levels of sidestream smoke emission, but with limited success. It is desirable that a cigarette has a conventional appearance and taste to the smoker, as well as allowing the manufacturer flexibility in the matters of composition of the tobacco charge, type of filter, if any, used, ventilation level, puff count and dimensions of the cigarette.
  • One solution proposed to reduce sidestream smoke emission is to employ as the wrapper for the tobacco rod of the cigarette a paper impregnated with an agent which reduces sidestream smoke emission.
  • a paper impregnated with an agent which reduces sidestream smoke emission is disclosed, for example, in US 4 721 120.
  • the use of a treated rod wrapper with an untreated paper overwrap is disclosed in US 4 505 282.
  • the use of treated wrappers may lead the smoker to perceive the smoke of the cigarette as having an unusual flavour, which may be unacceptable.
  • the present inventors have now surprisingly found that if an inner wrapper of reconstituted tobacco is employed between the tobacco rod and the outer paper wrapper, sidestream smoke emission is reduced.
  • a cigarette comprising a rod of smoking material filler wrapped in an inner wrapper of reconstituted tobacco and an outer wrapper of paper, the outer wrapper including from 0 to 2% alkali metal salt such as Potassium citrate.
  • Cigarettes according to the invention may be plain or have a filter tip.
  • reconstituted tobacco By reconstituted tobacco is meant a sheet material composed of tobacco material and a binder. No additives are normally included in reconstituted tobacco which may not also be used on conventional tobacco.
  • conventional tobacco blends for cigarettes may contain reconstituted tobacco, cut to about the same size as conventional tobacco. Proportions of reconstituted tobacco of 15% to 25% are usual.
  • cigarettes of the invention some or all of the reconstituted tobacco normally used in the blend may be omitted from the blend, and instead used to provide the inner wrapper. In this way a cigarette of entirely conventional overall tobacco composition is provided, which will smoke in the same way and with the same taste to the smoker as the conventional cigarette, but which exhibits reduced sidestream smoke emission.
  • Figure 1 shows an embodiment of a filter cigarette according to the invention
  • Figure 2 is a cross-section on line II-II of Figure 1.
  • the cigarette of Figures 1 and 2 comprises a wrapped tobacco rod 10 having a filter mouthpiece.
  • the filter mouthpiece is wrapped and conventionally affixed to the wrapped tobacco rod 10, by tipping 12.
  • the wrapped tobacco rod 10 comprises a rod 14 of tobacco, filler wrapped by an inner wrapper 16 of reconstituted tobacco.
  • the reconstituted tobacco wrapper 16 is itself overwrapped with an outer wrapper 18 of ordinary cigarette paper, containing from 0 to 2% potassium citrate.
  • the outer paper wrapper 18 is glued along its longitudinal seam (not shown), whilst the seam of the wrapper 16 of reconstituted tobacco is not glued.
  • the tobacco filler is of a conventional blend, and has a cut width of less than 1mm, most preferably between 0.7mm and 0.9mm.
  • the packing density of the filler is between 200mg/ml and 300 mg/ml, particularly preferably about 240 mg/ml.
  • Reconstituted tobacco preferably provides up to 25% of the total tobacco content.
  • the wrapper 16 of the reconstituted tobacco may provide about half the reconstituted tobacco content of the cigarette.
  • the puff count of the cigarette may be adjusted by choice of outer, paper, wrapper 18. It is preferably less than 13 and, in commercial cigarettes, preferably between 7 and 10, most preferably about 8 or 9.
  • the following table shows a comparison between the mainstream and sidestream smoke compositions of three cigarettes (C1, C2, C3) according to the invention and one conventional cigarette (C4).
  • All four cigarettes contain the same amount of the same total amount of tobacco wrapped in the same outer wrapper, and use the same filter, but C1, C2 and C3 include an inner wrapper of reconstituted tobacco.
  • This wrapper replaces some of the reconstituted tobacco in the filler to give the same overall tobacco content in each cigarette.
  • the packing density of the filler is about 240 mg/ml, and the cut width of the filler is 0.85mm.
  • the reconstituted tobacco used varies between the three cigarettes.
  • the cigarettes C1, C2, C3 of the invention have similar or slightly higher delivery levels in the mainstream smoke than the conventional cigarette C4, they have far lower delivery levels in the sidestream smoke.
  • the present invention provides a cigarette which exhibits much lower delivery levels in the sidestream smoke than is expected based on mainstream smoke delivery levels.

Landscapes

  • Cigarettes, Filters, And Manufacturing Of Filters (AREA)
EP90312761A 1989-12-14 1990-11-23 Improved cigarette Withdrawn EP0432927A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8928289 1989-12-14
GB898928289A GB8928289D0 (en) 1989-12-14 1989-12-14 Improved cigarette

Publications (1)

Publication Number Publication Date
EP0432927A1 true EP0432927A1 (en) 1991-06-19

Family

ID=10667956

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90312761A Withdrawn EP0432927A1 (en) 1989-12-14 1990-11-23 Improved cigarette

Country Status (4)

Country Link
EP (1) EP0432927A1 (no)
FI (1) FI906159A (no)
GB (1) GB8928289D0 (no)
NO (1) NO905381L (no)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0495567A2 (en) * 1991-01-05 1992-07-22 Rothmans, Benson & Hedges Inc. Novel smoking product
US6345625B1 (en) 1997-12-06 2002-02-12 Kar Eng Chew Filter for secondary smoke and smoking articles incorporating the same
WO2012093166A1 (en) * 2011-01-07 2012-07-12 British American Tobacco (Investments) Limited Smoking article
GB2492086A (en) * 2011-06-20 2012-12-26 British American Tobacco Co Smoking article with additional tobacco patch
CN103711029A (zh) * 2013-12-20 2014-04-09 华南理工大学 一种制造增香保润卷烟纸的方法

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2733720A (en) * 1956-02-07 apfttf papfp wpappfp
FR2163008A5 (no) * 1971-11-24 1973-07-20 Olin Corp
US4225636A (en) * 1979-03-08 1980-09-30 Olin Corporation High porosity carbon coated cigarette papers
US4231377A (en) * 1978-08-30 1980-11-04 Olin Corporation Wrapper for smoking articles containing magnesium oxide
GB2069310A (en) * 1980-02-20 1981-08-26 Molins Ltd Manufacture of cigarettes
EP0085494A2 (en) * 1982-01-15 1983-08-10 R.J. Reynolds Tobacco Company A smoking article having reduced sidestream smoke
EP0133575A1 (en) * 1983-08-08 1985-02-27 Kimberly-Clark Corporation Reduced ignition proclivity smoking article wrapper and smoking article
EP0290911A2 (en) * 1987-05-15 1988-11-17 R.J. Reynolds Tobacco Company Smoking article

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2733720A (en) * 1956-02-07 apfttf papfp wpappfp
FR2163008A5 (no) * 1971-11-24 1973-07-20 Olin Corp
US4231377A (en) * 1978-08-30 1980-11-04 Olin Corporation Wrapper for smoking articles containing magnesium oxide
US4225636A (en) * 1979-03-08 1980-09-30 Olin Corporation High porosity carbon coated cigarette papers
GB2069310A (en) * 1980-02-20 1981-08-26 Molins Ltd Manufacture of cigarettes
EP0085494A2 (en) * 1982-01-15 1983-08-10 R.J. Reynolds Tobacco Company A smoking article having reduced sidestream smoke
EP0133575A1 (en) * 1983-08-08 1985-02-27 Kimberly-Clark Corporation Reduced ignition proclivity smoking article wrapper and smoking article
EP0290911A2 (en) * 1987-05-15 1988-11-17 R.J. Reynolds Tobacco Company Smoking article

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0495567A2 (en) * 1991-01-05 1992-07-22 Rothmans, Benson & Hedges Inc. Novel smoking product
EP0495567B1 (en) * 1991-01-05 1999-07-14 Rothmans, Benson & Hedges Inc. Novel cigarette
US6345625B1 (en) 1997-12-06 2002-02-12 Kar Eng Chew Filter for secondary smoke and smoking articles incorporating the same
WO2012093166A1 (en) * 2011-01-07 2012-07-12 British American Tobacco (Investments) Limited Smoking article
GB2492086A (en) * 2011-06-20 2012-12-26 British American Tobacco Co Smoking article with additional tobacco patch
CN103711029A (zh) * 2013-12-20 2014-04-09 华南理工大学 一种制造增香保润卷烟纸的方法
CN103711029B (zh) * 2013-12-20 2015-07-01 华南理工大学 一种制造增香保润卷烟纸的方法

Also Published As

Publication number Publication date
FI906159A0 (fi) 1990-12-13
NO905381L (no) 1991-06-17
GB8928289D0 (en) 1990-02-21
FI906159A (fi) 1991-06-15
NO905381D0 (no) 1990-12-12

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