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EP2801269A1 - Article à fumer - Google Patents

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Publication number
EP2801269A1
EP2801269A1 EP13167259.4A EP13167259A EP2801269A1 EP 2801269 A1 EP2801269 A1 EP 2801269A1 EP 13167259 A EP13167259 A EP 13167259A EP 2801269 A1 EP2801269 A1 EP 2801269A1
Authority
EP
European Patent Office
Prior art keywords
tipping paper
smoking article
filter
activated carbon
paper
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Withdrawn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
EP13167259.4A
Other languages
German (de)
English (en)
Inventor
Thomas Pienemann
Jan Fuhrmann
Thomas Hühne
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.)
Reemtsma Cigarettenfabriken GmbH
HF and PhF Reemtsma GmbH and Co
Original Assignee
Reemtsma Cigarettenfabriken GmbH
HF and PhF Reemtsma GmbH and Co
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 Reemtsma Cigarettenfabriken GmbH, HF and PhF Reemtsma GmbH and Co filed Critical Reemtsma Cigarettenfabriken GmbH
Priority to EP13167259.4A priority Critical patent/EP2801269A1/fr
Priority to PCT/EP2014/000752 priority patent/WO2014180521A1/fr
Priority to JP2016512233A priority patent/JP2016518141A/ja
Priority to RU2015152774A priority patent/RU2611268C1/ru
Priority to TW103111464A priority patent/TW201507639A/zh
Publication of EP2801269A1 publication Critical patent/EP2801269A1/fr
Withdrawn legal-status Critical Current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
    • 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

Definitions

  • the invention relates to a smoking article, e.g., a filter cigarette.
  • adsorbent materials e.g. charcoal materials or activated carbon
  • cigarette papers and filters Use of adsorbent materials (e.g. charcoal materials or activated carbon) in cigarette papers and filters is a widely applied technology to reduce the levels of volatile smoke constituents.
  • WO 2008/043988 A1 discloses a carbon-containing paper used as a filter plug wrap.
  • the core of the related filter comprises carbon as well.
  • a filter according to this document would be connected to a cigarette rod using a conventional tipping paper so that the carbon paper is not directly exposed to the outer surface of the cigarette.
  • WO 2009/109427 A1 describes the use of a tobacco wrapper consisting of multiple plies, wherein one ply contains activated carbon and a flavourant.
  • the carbon ply is located on the tobacco side of the wrapper to allow better flavour release and interaction with mainstream smoke.
  • a carbon-containing plug wrap or tipping paper consisting of multiple plies is described, with one ply comprising an adsorbent material such as activated carbon.
  • This carbon-containing ply is directed towards the inner side of the smoking article to allow for interaction with the mainstream smoke.
  • Another ply which does not contain any adsorbent forms the outer surface of the plug wrap or tipping paper.
  • the object of the invention is to provide a smoking article which can reduce finger smell generally caused by smoking.
  • the smoking article (e.g., a cigarette) according to the invention comprises a wrapped tobacco rod and a filter.
  • the wrapped tobacco rod and the filter are connected by a tipping paper which overwraps the filter and a part of the wrapped tobacco rod.
  • the tipping paper is designed as a single-ply tipping paper and contains activated carbon.
  • the tobacco rod of the smoking article can be wrapped with a suitable cigarette paper, as well known in the art.
  • the filter can be designed as a single or multiple filter, which can be wrapped with a plug wrap.
  • the wrapped tobacco rod and the filter are coaxially aligned and linked by wrapping with the tipping paper. As such, the tipping paper is always the outermost layer in the filter region of the smoking article.
  • the tipping paper consists of a single ply containing activated carbon (active charcoal).
  • activated carbon active charcoal
  • the term "single ply” does not exclude an optional additional coating (see below), but means that there is only one paper ply.
  • Activated carbon can be added, e.g., during the paper manufacturing process so that it is inherently included in the tipping paper.
  • Suitable papers are disclosed in WO 2008/043988 A1 (see above) and are commercially available, e.g., from Saber Swiss Quality Paper. They are commonly referred to as "carbon papers”.
  • Activated carbon can also be applied to the outer surface of a conventional tipping paper after paper making by suitable methods such as coating or printing. It is also conceivable to apply activated carbon to the outer surface of a tipping paper which already inherently includes activated carbon.
  • the activated carbon is present at the outer surface of the filter end of the smoking article, where the smoking article is usually held, so that the activated carbon is placed in close proximity to the smoker's fingers during use of the smoking article.
  • the activated carbon can interact with the sidestream smoke that passes along the cigarette surface and can adsorb smelly sidestream smoke constituents.
  • a further way of interaction is by direct contact between the activated carbon and the fingers, whereby smelly, volatile substances that already have been deposited on the skin can be adsorbed by the activated carbon.
  • the tipping paper has an activated-carbon content in the range of from 5% to 50% (by weight) or, preferably, in the range of from of 15% to 30% (by weight).
  • activated carbon may be applied to the outwardly directed surface of the tipping paper, i.e. to that surface of the tipping paper which is outwardly directed (exposed) in the finished smoking article.
  • the step of application can be performed, e.g., by coating or printing, preferably after the paper making process and before the tipping paper is wrapped about the filter and the filter-ended area of the wrapped tobacco rod.
  • carbon papers Due to the specific manufacturing process of carbon papers, carbon papers usually have a high natural porosity (inherent porosity, i.e. porosity determined when it is not artificially increased by ventilation holes).
  • the tipping paper containing activated carbon has an inherent porosity of at least 50 CU.
  • the tipping paper can be additionally perforated, e.g. by electro-perforation or laser perforation, either before or after it is wrapped about the smoking article.
  • the tipping paper containing activated carbon comprises an at least partial coating on its outwardly directed surface.
  • This coating may improve, e.g., the haptical and/or optical properties of the tipping paper.
  • lip release can be facilitated by a coating, or a coloured or white varnish can change the appearance of the tipping paper containing activated carbon.
  • coating also covers applications like a porous varnish which penetrates into the pores of the tipping paper containing activated carbon.
  • Such coatings can be applied, e.g., by spraying or printing, preferably before the tipping paper is wrapped about the filter and the wrapped tobacco rod.
  • the activated carbon in the tipping paper generally adheres well to the paper ply and does not result in coloured fingers when the consumer grasps and smokes the smoking article.
  • the tipping paper containing activated carbon may comprise artificial perforations, which can result in a filter ventilation of the smoking article in the range of from 10% to 90%.
  • the artificial perforations are preferably made as electro-perforations or laser perforations, as is well known in the art. In case any coating of the tipping paper decreases the porosity of the tipping paper, such artificial perforations can be used to adjust the filter ventilation to a desired value.
  • the tipping paper containing activated carbon has an areal weight in the range of from 20 g/m 2 to 80 g/m 2 .
  • the tobacco rod can be wrapped with a conventional cigarette paper (porosity typically in the range of from 5 CU to 400 CU).
  • the tobacco rod is wrapped with a low-sidestream (“LSS") cigarette paper (or with multiple layers of a cigarette paper, which also has a sidestream-reducing effect).
  • LSS cigarette papers are commercially available, e.g. from Delfort Group, and usually contain higher CaCO 3 filler levels or special fillers like MgO.
  • the filter may comprise one filter segment or more than one filter segment.
  • at least one filter segment may contain an adsorbent, preferably activated carbon.
  • the adsorbent is used to change the composition of mainstream smoke and also has the potential to reduce the smell of discarded cigarette butts.
  • Adsorbent may be added to filter materials and/or contained in a separate filter compartment, as generally known in the art.
  • the filter can be wrapped in a porous plug wrap, preferably having a porosity in the range of from 100 CU to 40000 CU.
  • a non-porous plug wrap may be used as well.
  • the plug wrap can optionally contain activated carbon or another adsorbent. In any case, the plug wrap is covered by the tipping paper.
  • the tipping paper contains at least one adsorbent different from activated carbon.
  • adsorbents are zeolites, alumina, silica, silica gel, ion exchange resins, polyester resins, sepiolite, and carbon species like impregnated carbon, activated carbon fibres and highly activated carbon.
  • the filter of the smoking article has particular design features such as a coloured tow (e.g., coloured cellulose acetate tow), a mouth-sided recess or a shaped hollow bore element at the mouth-sided end of the filter, as known to anyone familiar with the state of the art.
  • a coloured tow e.g., coloured cellulose acetate tow
  • a mouth-sided recess e.g., coloured cellulose acetate tow
  • a shaped hollow bore element at the mouth-sided end of the filter e.g., coloured cellulose acetate tow
  • FIG. 1 illustrates, in a longitudinal view, a cigarette as an example of a smoking article.
  • the cigarette comprises a wrapped tobacco rod 1, which includes an amount of a tobacco blend wrapped in a cigarette paper, and a filter.
  • the filter comprises filter material 2, e.g. cellulose acetate, which is wrapped in a plug wrap 3.
  • the filter is connected to the wrapped tobacco rod 1 by a tipping paper 4, which overwraps the filter 2, 3 and a part of the wrapped tobacco rod 1.
  • the tipping paper 4 is shown partially unwrapped.
  • the filter can be designed as a filter having one segment or more than one segment.
  • Figure 2 is a schematic cross-sectional view of the cigarette of Figure 1 , in a plane cut through the filter, which shows the filter material 2, the plug wrap 3, and the tipping paper 4.
  • the plug wrap 3 may form a step in the area of its overlap (not shown in Figure 2 ). The same holds for the tipping paper 4.
  • Figure 2 is not drawn in scale.
  • the tipping paper 4 is designed as a single-ply tipping paper and contains activated carbon.
  • the colour of the tipping paper 4 is a dark gray.
  • Example 1 relates to a reference cigarette, in which the tipping paper does not contain activated carbon.
  • the cigarette paper is a low-sidestream paper (LSS), whereas the tipping paper still does not contain activated carbon.
  • the cigarette paper is a low-sidestream paper (LSS)
  • the tipping paper is a single-ply tipping paper and contains activated carbon.
  • the tipping paper is a single-ply tipping paper containing activated carbon as in Example 3, but the cigarette paper is a conventional cigarette paper as in Example 1.
  • Example 2 Reference cigarette with LSS paper
  • Example 2 American Blend cigarettes similar to Example 1 were produced with a low-sidestream cigarette paper having a base weight of 45 g/m 2 , a CaCO 3 filler content of 45% (by weight) and a porosity of 6 CU. The cigarettes were perforated by an online-laser to achieve a target filter ventilation of 41%.
  • Example 3 Cigarette with LSS paper and carbon tipping paper
  • Example 2 American Blend cigarettes according to Example 2 were produced with a single-ply tipping paper containing activated carbon and having a base weight of 50 g/m 2 (including the activated carbon), a carbon content of 30% (by weight) and a porosity of 1200 CU. The cigarettes were perforated by an online-laser to achieve a target filter ventilation of 43%.
  • Table 1 illustrates physical data and smoke yields of the cigarettes according to Examples 1 to 3.
  • NFDPM nicotine-free dry particulate matter, "tar”
  • NFDPM non-free dry particulate matter, "tar”
  • cigarettes according to Example 3 were smoked by a test panel over a period of one week. The participants reported that less finger smell was observed, compared to their usual brand.

Landscapes

  • Cigarettes, Filters, And Manufacturing Of Filters (AREA)
EP13167259.4A 2013-05-10 2013-05-10 Article à fumer Withdrawn EP2801269A1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP13167259.4A EP2801269A1 (fr) 2013-05-10 2013-05-10 Article à fumer
PCT/EP2014/000752 WO2014180521A1 (fr) 2013-05-10 2014-03-19 Article à fumer
JP2016512233A JP2016518141A (ja) 2013-05-10 2014-03-19 喫煙物品
RU2015152774A RU2611268C1 (ru) 2013-05-10 2014-03-19 Курительное изделие
TW103111464A TW201507639A (zh) 2013-05-10 2014-03-27 吸菸物品

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP13167259.4A EP2801269A1 (fr) 2013-05-10 2013-05-10 Article à fumer

Publications (1)

Publication Number Publication Date
EP2801269A1 true EP2801269A1 (fr) 2014-11-12

Family

ID=48444094

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13167259.4A Withdrawn EP2801269A1 (fr) 2013-05-10 2013-05-10 Article à fumer

Country Status (5)

Country Link
EP (1) EP2801269A1 (fr)
JP (1) JP2016518141A (fr)
RU (1) RU2611268C1 (fr)
TW (1) TW201507639A (fr)
WO (1) WO2014180521A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3732999A4 (fr) * 2017-12-26 2021-08-11 Japan Tobacco Inc. Article à fumer à filtre

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0539009A2 (fr) * 1991-10-23 1993-04-28 Rothmans International Services Limited Cigarette avec embout filtrant
US5228464A (en) * 1991-02-19 1993-07-20 P. H. Glatfelter Company Wrapper for smoking article, smoking article, and method of making same, case VIII
WO2007010249A1 (fr) * 2005-07-21 2007-01-25 British American Tobacco (Investments) Limited Article a fumer
US20070181140A1 (en) * 2005-12-21 2007-08-09 Philip Morris Usa Inc Smoking article having flavorant materials retained in hollow heat conductive tubes
WO2008043988A1 (fr) 2006-10-09 2008-04-17 Filtrona International Limited Filtre pour fumée de cigarette
WO2009109427A1 (fr) 2008-03-07 2009-09-11 British American Tobacco (Investments) Limited Enveloppe pour tiges de matière à fumer
WO2009109433A1 (fr) 2008-03-07 2009-09-11 British American Tobacco (Investments) Limited Papier pour filtre ou papier de manchette pour articles à fumer
WO2011000638A1 (fr) * 2009-06-29 2011-01-06 British American Tobacco (Investments) Limited Filtre pour article à fumer

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5652995U (fr) * 1979-09-29 1981-05-09
JPH06209756A (ja) * 1993-01-14 1994-08-02 Japan Tobacco Inc シガレット
JPH11346748A (ja) * 1998-06-09 1999-12-21 Mitsubishi Rayon Co Ltd フィルター付きシガレット
GB9928853D0 (en) * 1999-12-07 2000-02-02 British American Tobacco Co Improvements relating to smoking articles
US20030159703A1 (en) * 2002-02-22 2003-08-28 Zuyin Yang Flavored carbon useful as filtering material of smoking article
AU2003249076B2 (en) * 2002-08-09 2007-03-08 British American Tobacco (Investments) Limited Improvements relating to filter-tip cigarettes and method of manufacturing same
GB0803572D0 (en) * 2008-02-27 2008-04-02 British American Tobacco Co Filter for a smoking article
GB2484976A (en) * 2010-10-29 2012-05-02 British American Tobacco Co Smoking article filter

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5228464A (en) * 1991-02-19 1993-07-20 P. H. Glatfelter Company Wrapper for smoking article, smoking article, and method of making same, case VIII
EP0539009A2 (fr) * 1991-10-23 1993-04-28 Rothmans International Services Limited Cigarette avec embout filtrant
WO2007010249A1 (fr) * 2005-07-21 2007-01-25 British American Tobacco (Investments) Limited Article a fumer
US20070181140A1 (en) * 2005-12-21 2007-08-09 Philip Morris Usa Inc Smoking article having flavorant materials retained in hollow heat conductive tubes
WO2008043988A1 (fr) 2006-10-09 2008-04-17 Filtrona International Limited Filtre pour fumée de cigarette
WO2009109427A1 (fr) 2008-03-07 2009-09-11 British American Tobacco (Investments) Limited Enveloppe pour tiges de matière à fumer
WO2009109433A1 (fr) 2008-03-07 2009-09-11 British American Tobacco (Investments) Limited Papier pour filtre ou papier de manchette pour articles à fumer
WO2011000638A1 (fr) * 2009-06-29 2011-01-06 British American Tobacco (Investments) Limited Filtre pour article à fumer

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3732999A4 (fr) * 2017-12-26 2021-08-11 Japan Tobacco Inc. Article à fumer à filtre

Also Published As

Publication number Publication date
RU2611268C1 (ru) 2017-02-21
JP2016518141A (ja) 2016-06-23
WO2014180521A1 (fr) 2014-11-13
TW201507639A (zh) 2015-03-01

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