EP1051089B1 - Articles a fumer - Google Patents

Articles a fumer Download PDF

Info

Publication number
EP1051089B1
EP1051089B1 EP99903793A EP99903793A EP1051089B1 EP 1051089 B1 EP1051089 B1 EP 1051089B1 EP 99903793 A EP99903793 A EP 99903793A EP 99903793 A EP99903793 A EP 99903793A EP 1051089 B1 EP1051089 B1 EP 1051089B1
Authority
EP
European Patent Office
Prior art keywords
article
tobacco
activated carbon
shredded
carbon particles
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.)
Expired - Lifetime
Application number
EP99903793A
Other languages
German (de)
English (en)
Other versions
EP1051089A1 (fr
Inventor
John Roger Sampson
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.)
British American Tobacco Investments Ltd
Original Assignee
British American Tobacco Investments Ltd
British American Tobacco Co Ltd
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 British American Tobacco Investments Ltd, British American Tobacco Co Ltd filed Critical British American Tobacco Investments Ltd
Publication of EP1051089A1 publication Critical patent/EP1051089A1/fr
Application granted granted Critical
Publication of EP1051089B1 publication Critical patent/EP1051089B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
    • A24B15/00—Chemical features or treatment of tobacco; Tobacco substitutes, e.g. in liquid form
    • A24B15/18—Treatment of tobacco products or tobacco substitutes
    • A24B15/28—Treatment of tobacco products or tobacco substitutes by chemical substances
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
    • A24B15/00—Chemical features or treatment of tobacco; Tobacco substitutes, e.g. in liquid form
    • A24B15/10—Chemical features of tobacco products or tobacco substitutes
    • A24B15/12—Chemical features of tobacco products or tobacco substitutes of reconstituted tobacco
    • 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

  • This invention relates to smoking articles such as cigarettes, cigars and cigarillos, and is concerned with the reduction of sidestream smoke from smoking articles.
  • Sidestream smoke is that which is produced when the article is alight but not being drawn on by the smoker.
  • Mainstream smoke is that which is generated when the smoking article is drawn on by the smoker; the chemistries of mainstream and sidestream smokes are different.
  • the present invention uses activated carbon to modify the smoke of a smoking article.
  • activated carbon has been used in smoking articles, and for various purposes, virtually ever since its excellent adsorbent properties became known.
  • GB-A-1512352 shows the use of activated porous particles of carbon adhered to tobacco in the tobacco rod to affect mainstream smoke.
  • GB-A-1348580 shows a sheet of reconstituted tobacco material containing activated carbon used as a main material for making cigarettes which gave a reduction in particulates and nicotine in mainstream smoke.
  • the present invention is contrasted with all of this prior art by providing in a tobacco rod an activated carbon for having an effect on the chemistry of smoke while not being limited to the use of low permeability papers, and specifically not to papers of ⁇ 10 CORESTA.
  • the present invention provides the addition of activated carbon in specific particulate form in reconstituted tobacco sheet to the tobacco rod of the smoking article in such a way that greater mildness of the smoking article is perceived by the smoker in the mainstream smoke, and at the same time there is a reduction in sidestream smoke over a wide range of porosities of the wrapper of the article and in particular with porosities high enough that special precautions do not have to be taken to prevent self-extinction of the article.
  • the activated carbon particle should preferably be of vegetable origin since they will then contain minute traces of metals, which assist in the firm adsorption of (particularly) aldehydes from the smoke and indeed may chelate with such compounds. These are compounds the removal of which is particularly critical for improving mildness of perception of the article when smoked.
  • the activated carbon does not diminish and may even increase certain beneficial volatile components of the smoke.
  • the reconstituted tobacco sheet containing the activated carbon particles may be made by conventional techniques for making such sheets, which in their turn resemble conventional paper-making techniques, the sheet then being shredded for incorporation with shredded tobacco which will be the material of the tobacco rod.
  • the invention therefore includes within its scope a blend of shredded tobacco and of reconstituted tobacco sheet with the latter containing activated carbon.
  • the handling of the sheet may cause loss of carbon particles and the reconstituted tobacco sheet may be coated or sized in order to assist retention of the particles in it, and in particular the particles may themselves be micro-encapsulated before incorporation.
  • This latter has the advantage of increasing the size of the particles and therefore their retention mechanically and the uniformity of size but, perhaps surprisingly, does not affect their activity.
  • Cigarettes were made from a mixture of US flue-cured and Burley tobaccos, cut rolled stem and expanded tobaccos, processed and cut to 32 cuts per inch ("cpi"). Incorporated in the shredded tobacco were 20% of a reconstituted tobacco sheet equally cut and containing 30% of activated carbon particles from coconut, of mean particle size 37 ⁇ m and ranging in particle size from 0.5 ⁇ m to 150 ⁇ m. Control cigarettes were made identically but with the omission of the activated carbon particles.
  • the cigarettes were 84 mm long, 7.9 mm diameter, unfiltered.
  • the wrapping was an 80 CORESTA flax-based paper, with 2% potassium citrate burn enhancer.
  • Cigarettes and controls were prepared using the same tobacco blend and reconstituted tobacco sheet as in Example 1, but using respectively papers of 25, 50, 80 and 180 CORESTA units porosity. Sidestream smoke from the inventive cigarettes and from the controls had significant reductions both in semi-volatiles and in nicotine content, as seen in Table 3. Increased carbon monoxide and carbon dioxide production is assumed to be due to the presence of the particulate carbon in the tobacco sheet.

Landscapes

  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Cigarettes, Filters, And Manufacturing Of Filters (AREA)
  • Manufacture Of Tobacco Products (AREA)
  • Paper (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)
  • Seasonings (AREA)

Claims (8)

  1. Article à fumer ayant une tige de tabac, laquelle comprend un mélange de tabac haché et de feuille hachée de tabac reconstitué, la feuille de tabac reconstitué, contenant des particules de charbon actif, et une enveloppe entourant la tige de tabac, l'enveloppe ayant une perméabilité inhérente de 20 CORESTA ou supérieure.
  2. Article selon la revendication 1, dans lequel les particules de charbon actif sont d'origine végétale.
  3. Article selon la revendication 2, dans lequel l'origine végétale est de la noix de coco.
  4. Article selon la revendication 1, 2, ou 3, dans lequel les particules de charbon ont une taille moyenne de particules d'environ 37 µm.
  5. Procédé de production d'un article à fumer doté d'une fumée de courant secondaire réduite et d'une sensation de douceur accrue durant l'action de fumer, qui comprend l'utilisation, pour la tige de tabac de l'article de tabac haché et de feuille hachée de tabac reconstitué, contenant des particules de charbon actif, et comme enveloppe entourant la tige de tabac, d'un matériau ayant une perméabilité inhérente de 20 CORESTA ou supérieure.
  6. Procédé selon la revendication 5, incluant le roulage manuel de l'article à fumer.
  7. Procédé selon la revendication 5 ou 6, comportant une réduction préférentielle de la teneur en aldéhyde de la fumée de courant principal.
  8. Ensemble pour le roulage manuel d'un article à fumer avec fumée de courant secondaire réduite et sensation de douceur accrue durant l'action de fumer, qui comprend pour la tige de tabac de l'article, du tabac haché et de la feuille hachée de tabac reconstitué, contenant des particules de charbon actif, et comme enveloppe entourant la tige de tabac, un matériau ayant une perméabilité inhérente de 20 CORESTA ou supérieure.
EP99903793A 1998-01-28 1999-01-26 Articles a fumer Expired - Lifetime EP1051089B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GBGB9801797.3A GB9801797D0 (en) 1998-01-28 1998-01-28 Smoking articles
GB9801797 1998-01-28
PCT/GB1999/000260 WO1999038396A1 (fr) 1998-01-28 1999-01-26 Articles a fumer

Publications (2)

Publication Number Publication Date
EP1051089A1 EP1051089A1 (fr) 2000-11-15
EP1051089B1 true EP1051089B1 (fr) 2003-05-07

Family

ID=10826029

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99903793A Expired - Lifetime EP1051089B1 (fr) 1998-01-28 1999-01-26 Articles a fumer

Country Status (19)

Country Link
EP (1) EP1051089B1 (fr)
JP (1) JP4044731B2 (fr)
KR (1) KR100597169B1 (fr)
CN (1) CN1125604C (fr)
AT (1) ATE239388T1 (fr)
AU (1) AU747793B2 (fr)
BR (1) BR9907722B1 (fr)
CA (1) CA2317409C (fr)
DE (1) DE69907632T2 (fr)
DK (1) DK1051089T3 (fr)
ES (1) ES2199543T3 (fr)
GB (1) GB9801797D0 (fr)
HK (1) HK1032721A1 (fr)
MY (1) MY129320A (fr)
NO (1) NO325593B1 (fr)
NZ (1) NZ505480A (fr)
PT (1) PT1051089E (fr)
WO (1) WO1999038396A1 (fr)
ZA (1) ZA99675B (fr)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2001296580A1 (en) 2000-10-05 2002-04-15 Nicolas Baskevitch Reduction of nitrosamines in tobacco and tobacco products
US7585378B2 (en) * 2004-04-30 2009-09-08 Hitachi Metals, Ltd. Methods for producing raw material alloy for rare earth magnet, powder and sintered magnet
WO2010001489A1 (fr) * 2008-07-01 2010-01-07 Koshiishi Kazuto Filtre de tabac
JP5208041B2 (ja) * 2009-04-10 2013-06-12 和人 輿石 タバコ用フィルター
GB201100218D0 (en) * 2011-01-07 2011-02-23 British American Tobacco Co Smoking article
CN103099306A (zh) * 2012-11-13 2013-05-15 苏州谷力生物科技有限公司 一种活性炭烟草薄片的制备方法
CN103099307A (zh) * 2012-11-13 2013-05-15 苏州谷力生物科技有限公司 一种添加活性炭薄片卷烟的制备方法
CN103099304A (zh) * 2012-11-13 2013-05-15 苏州谷力生物科技有限公司 一种铁-活性炭烟草薄片的制备方法
US9220296B2 (en) 2013-03-15 2015-12-29 Safall Fall Method of reducing tobacco-specific nitrosamines
TR201809971T4 (tr) * 2013-07-19 2018-08-27 Philip Morris Products Sa Hidrofobik kağıt.
EP2962580A1 (fr) * 2014-07-01 2016-01-06 Reemtsma Cigarettenfabriken GmbH Produit lié au tabac comprenant des éléments distinctifs liés au tabac et méthodes
GB201412752D0 (en) 2014-07-17 2014-09-03 Nicoventures Holdings Ltd Electronic vapour provision system
CN105747264B (zh) * 2016-04-20 2020-11-20 贵州中烟工业有限责任公司 一种含活性炭加热不燃烧的烟草基底及其制备方法与应用
GB201908353D0 (en) * 2019-06-11 2019-07-24 Nicoventures Trading Ltd A mouthpiece and an article for use in an aerosol provision system
CA3224266A1 (fr) * 2021-07-07 2023-01-12 Houxue HUANG Substrat de formation d'aerosol thermiquement ameliore

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1348580A (en) * 1971-06-11 1974-03-20 British American Tobacco Co Reconstituted-tobacco smoking materials
GB1512352A (en) 1977-02-07 1978-06-01 Imp Group Ltd Additive for tobacco
US5092353A (en) 1989-01-18 1992-03-03 R. J. Reynolds Tobacco Company Cigarette
US4942888A (en) 1989-01-18 1990-07-24 R. J. Reynolds Tobacco Company Cigarette
US5056537A (en) * 1989-09-29 1991-10-15 R. J. Reynolds Tobacco Company Cigarette

Also Published As

Publication number Publication date
WO1999038396A1 (fr) 1999-08-05
ATE239388T1 (de) 2003-05-15
GB9801797D0 (en) 1998-03-25
CN1289234A (zh) 2001-03-28
NO20003357D0 (no) 2000-06-27
MY129320A (en) 2007-03-30
JP2002501736A (ja) 2002-01-22
AU747793B2 (en) 2002-05-23
NZ505480A (en) 2003-01-31
ES2199543T3 (es) 2004-02-16
KR100597169B1 (ko) 2006-07-05
AU2431699A (en) 1999-08-16
BR9907722A (pt) 2000-10-17
ZA99675B (en) 1999-07-28
KR20010034343A (ko) 2001-04-25
NO20003357L (no) 2000-09-26
DE69907632T2 (de) 2004-04-08
PT1051089E (pt) 2003-08-29
JP4044731B2 (ja) 2008-02-06
CN1125604C (zh) 2003-10-29
CA2317409C (fr) 2004-07-20
BR9907722B1 (pt) 2008-11-18
HK1032721A1 (en) 2001-08-03
NO325593B1 (no) 2008-06-23
DE69907632D1 (de) 2003-06-12
EP1051089A1 (fr) 2000-11-15
DK1051089T3 (da) 2003-09-01
CA2317409A1 (fr) 1999-08-05

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