EP2949225B1 - Rauchartikel - Google Patents

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Publication number
EP2949225B1
EP2949225B1 EP14001848.2A EP14001848A EP2949225B1 EP 2949225 B1 EP2949225 B1 EP 2949225B1 EP 14001848 A EP14001848 A EP 14001848A EP 2949225 B1 EP2949225 B1 EP 2949225B1
Authority
EP
European Patent Office
Prior art keywords
smoking article
filter
plug wrap
outer plug
article according
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.)
Active
Application number
EP14001848.2A
Other languages
English (en)
French (fr)
Other versions
EP2949225A1 (de
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
Original Assignee
Reemtsma Cigarettenfabriken GmbH
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
Priority to PL14001848T priority Critical patent/PL2949225T3/pl
Application filed by Reemtsma Cigarettenfabriken GmbH filed Critical Reemtsma Cigarettenfabriken GmbH
Priority to HUE14001848A priority patent/HUE031218T2/en
Priority to EP14001848.2A priority patent/EP2949225B1/de
Priority to ES14001848.2T priority patent/ES2618054T3/es
Priority to PT140018482T priority patent/PT2949225T/pt
Priority to RU2016151182A priority patent/RU2649272C1/ru
Priority to UAA201613143A priority patent/UA120433C2/uk
Priority to PCT/EP2015/000941 priority patent/WO2015180821A1/en
Priority to TW104114900A priority patent/TWI643563B/zh
Publication of EP2949225A1 publication Critical patent/EP2949225A1/de
Application granted granted Critical
Publication of EP2949225B1 publication Critical patent/EP2949225B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • 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.
  • 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.
  • EP 2 719 295 A1 describes a smoking article with a filter wrapper containing at its inner surface a sorption material to reduce mainstream gas phase constituents. It is characterised by having a ventilation zone located upstream of at least 80% of the sorbent material to maximize the desired effect of reducing smoke constituents.
  • US 3 370 592 discloses a filter cigarette with parts of the filter being made visible by use of a transparent plug wrap in combination with a tipping comprising openings for viewing.
  • the purpose of this design is to indicate the adsorption in the filter, e.g. by colour change.
  • Similar solutions are described in CH 394 912 , WO 2011/154246 A1 , WO 2012/076649 A1 , and EP 1 252 832 A2 .
  • WO 2011/038430 A1 discloses a method of producing tipping papers or filter plug wraps with viewing holes.
  • 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 filter includes filter material and an outer plug wrap.
  • 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 outer plug wrap is opaque and comprises activated carbon (active charcoal).
  • the tipping paper is provided with at least one opening (in the following: "openings", which does not exclude just one opening, however) through which the carbon surface of the outer plug wrap is exposed, i.e. exposed to the outside of the smoking article.
  • the filter may be composed of one segment, which comprises filter material (e.g., cellulose acetate) and is wrapped with the outer plug wrap.
  • filter material e.g., cellulose acetate
  • the term "outer plug wrap” includes a single filter plug wrap as commonly used in mono-filters. It is conceivable, however, that one or more than one additional layers of wrapping material are provided beneath the outer plug wrap. In any case, the outer plug wrap comprising activated carbon is the outermost layer of the filter segment.
  • the filter includes more than one segment, each segment comprising an outer layer.
  • the individual segments are connected to each other by the outer plug wrap, which overwraps the outer layers of the individual segments.
  • the filter may comprise at least one segment containing an adsorbent, preferably activated carbon.
  • the filter comprises a mouth-sided segment containing cellulose acetate and a rod-sided segment containing grains of activated carbon, and both segments are overwrapped and connected with the outer plug wrap, which includes activated carbon as well.
  • an individual segment is wrapped with more than one layer, e.g. with layers of different materials, or that an additional common plug wrap is provided beneath the activated carbon-containing outer plug wrap.
  • the tobacco rod of the smoking article can be wrapped with a suitable cigarette paper, as well known in the art.
  • the wrapped tobacco rod and the filter are coaxially aligned and linked by wrapping with the tipping paper.
  • the tipping paper is always the outermost layer in the filter region of the smoking article.
  • the outer plug wrap consists of a single ply containing activated carbon.
  • the term "single ply” does not exclude an optional additional coating, but means that there is only one paper ply.
  • the activated carbon can be added, e.g., during the paper manufacturing process. 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”.
  • the activated carbon can also be applied to the outer surface of a conventional plug wrap paper after paper making by suitable methods such as coating or printing.
  • the tipping although designated as “tipping paper”, can be made from any suitable material known to a skilled person, e.g. paper, cellophane, polymer films etc. In this sense, the term “paper” includes the other materials as well.
  • the tipping paper comprises one or more openings of any suitable shape. Preferentially, each opening has a surface area in the range of from 0.5 mm 2 to 20 mm 2 .
  • the combined surface area of all openings at one cigarette is in the range of from 20 mm 2 to 200 mm 2 .
  • these openings are located in the region of the filter where the cigarette is usually held, which is 10 mm or more away from the mouth-sided end of the cigarette. In case of filter-ventilated cigarettes, the openings should be placed upstream of the ventilation zone.
  • the openings can be cut from the tipping paper by well-known processes such as laser-cutting or mechanical punching-out.
  • the activated carbon is exposed through the openings to 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 filter may comprise at least one layer of wrapping (including the carbon-containing outer plug wrap) which has, in the area of the openings, a porosity of less than 10 CU. That means, one of the filter plug wraps lying beneath the openings is substantially unporous, i.e. it has a porosity of less than 10 CU.
  • This largely unporous plug wrap may be, e.g., the carbon-containing outer plug wrap itself in case of a mono filter or at least one of the inner filter plug wrappings in case of a filter including more than one segment.
  • Typical porosity values for porous wrappings are in the range of from 100 CU to 40000 CU.
  • the tipping paper can be additionally micro-perforated, e.g. by electro-perforation or laser perforation, either before or after it is wrapped about the smoking article.
  • the perforations would also extend through any low-porosity wrapping beneath the tipping paper.
  • this additional ventilation zone is located downstream to the openings in the tipping paper.
  • the ventilation zone may be arranged in an area extending from the mouth-sided end of the smoking article to 70% of the length of the outer plug wrap.
  • the length of the outer plug wrap preferably corresponds to the filter length.
  • the openings are located at a distance of at least 10 mm from the mouth-sided end of the smoking article. This generally avoids a contact of the user's lips with the activated carbon exposed through the openings, but is a good distance in order to achieve a finger smell reduction.
  • the content of activated carbon in the outer plug wrap is in the range of from 5% to 50% (by weight, i.e. total weight of the outer plug wrap including activated carbon) or, preferably, in the range of from of 10% to 30% (by weight).
  • the activated carbon may be applied to the outwardly directed surface of the outer plug wrap, i.e. to that surface of the outer plug wrap which is outwardly directed with respect to the finished smoking article and exposed through the openings in the tipping paper.
  • the step of application can be performed, e.g., by coating or printing, preferably after the paper making process and before the outer plug wrap is wrapped about the corresponding filter parts.
  • the outer plug wrap has an areal weight in the range of from 20 g/m 2 to 80 g/m 2 , which includes the activated carbon.
  • 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 generally comprise one filter segment or more than one filter segment.
  • at least one filter segment contains an adsorbent, preferably activated carbon.
  • the adsorbent can also reduce the smell of discarded cigarette butts.
  • Adsorbent may be added to filter materials (e.g., if only one filter segment is present) and/or contained in a separate filter compartment, as generally known in the art.
  • the outer plug wrap contains at least one adsorbent different from activated carbon.
  • adsorbents are zeolites, alumina or silica.
  • 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 in 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
  • FIG. 1 illustrates, in a three-dimensional 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 (corresponding to the outer plug wrap discussed above) containing activated carbon.
  • the filter is connected to the wrapped tobacco rod 1 by a tipping paper 4, which comprises openings 5 and an optional perforation line 6 for filter ventilation.
  • the tipping paper 4 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, as explained above.
  • FIG. 2 is a schematic drawing that shows several examples of patterns and shapes for openings 5' provided in tipping paper 4'. It is evident that there are much more possibilities for arrangements of openings 5'.
  • Cigarettes with a mono filter were produced on a standard cigarette maker: Cigarette circumference: 24.5 mm Cigarette length: 83 mm Tobacco rod length: 56 mm Rod weight: 620 mg Cigarette paper: LSS paper, 10 CU, 45 g/m 2 Filter length: 27 mm Filter material: Cellulose acetate 3.8Y30 Filter plug wrap: Paper of 40 g/m 2 10% activated carbon by weight Porosity ⁇ 10 CU Tipping length: 32 mm (on cigarette)
  • the tipping was made from white paper and had oval openings of 2.5 mm x 8 mm with a distance of 2.4 mm, similar to the first example of Fig. 2 .
  • the distance of the downstream edge of the openings to the mouth-sided end of the cigarette was 16 mm.
  • a filter ventilation of 35% was applied by use of an on-line laser on the cigarette machine with the laser line being located at 13 mm from the mouth-sided end.
  • Cigarettes with a dual filter were produced on a standard cigarette maker: Cigarette circumference: 24.5 mm Cigarette length: 83 mm Tobacco rod length: 56 mm Rod weight: 620 mg Cigarette paper: LSS paper, 10 CU, 45 g/m 2 Filter length: 27 mm Mouth-ended filter plug: Filter material: Cellulose acetate 3.8Y30 Plug wrap: Paper of 23 g/m 2 Plug wrap porosity: 10000 CU Plug length: 15 mm Rod-ended filter plug: Filter material: Cellulose acetate 3.8Y30 with 3 mg/mm activated carbon Plug wrap: Paper of 27 g/m 2 Plug wrap porosity: ⁇ 10 CU Plug length: 12 mm Outer plug wrap: Paper of 50 g/m 2 30% activated carbon content by weight Porosity 1200 CU Tipping length: 32 mm (on cigarette)
  • the tipping was made from white paper and had oval openings of 2.5 x 6 mm with a distance of 2.4 mm, similar to the first example of Fig. 2 .
  • the distance of the downstream edge of the openings to the mouth-sided end of the cigarette was 17 mm.
  • the tipping had an additional electrostatic micro-perforation located between 10 and 13 mm distance from the mouth-sided end to obtain a tipping porosity (measured excluding openings) of 300 CU. By choice of these parameters, a filter ventilation of 25% was achieved.
  • Cigarettes according to both Example 1 and Example 2 were smoked by a test panel over a period of one week, and the participants reported that less finger smell was observed compared to their usual brand.

Landscapes

  • Cigarettes, Filters, And Manufacturing Of Filters (AREA)

Claims (13)

  1. Rauchartikel, mit einem umwickelten Tabakstrang (1) und einem Filter, der Filtermaterial (2) und eine äußere Stopfenumwicklung (3) aufweist, wobei der umwickelte Tabakstrang (1) und der Filter (2, 3) durch ein Tippingpapier (4) verbunden sind, das den Filter (2, 3) und einen Teil des umwickelten Tabakstrangs (1) umgibt, wobei die äußere Stopfenumwicklung (3) undurchsichtig ist und Aktivkohle aufweist und das Tippingpapier (4) mit wenigstens einer Öffnung (5) versehen ist, die die Oberfläche der äußeren Stopfenumwicklung (3) exponiert, dadurch gekennzeichnet, dass die Gesamtfläche der Öffnungen (5) im Bereich von 20 mm2 bis 200 mm2 liegt.
  2. Rauchartikel nach Anspruch 1, dadurch gekennzeichnet, dass der Filter (2, 3) aus einem Segment zusammengesetzt ist, das Filtermaterial (2) aufweist und mit der äußeren Stopfenumwicklung (3) umwickelt ist.
  3. Rauchartikel nach Anspruch 1, dadurch gekennzeichnet, dass der Filter mehr als ein Segment enthält, wobei jedes Segment eine äußere Lage aufweist, wobei die einzelnen Segmente miteinander durch die äußere Stopfenumwicklung verbunden sind, die die äußeren Lagen der einzelnen Segmente umgibt.
  4. Rauchartikel nach Anspruch 2 oder 3, dadurch gekennzeichnet, dass der Filter wenigstens ein Segment aufweist, das ein Adsorbent, vorzugsweise Aktivkohle, enthält.
  5. Rauchartikel nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass der Filter wenigstens eine Umwicklungslage aufweist, einschließlich der äußeren Stopfenumwicklung (3), die im Bereich der Öffnungen (5) eine Porosität von weniger als 10 CU hat.
  6. Rauchartikel nach einem der Ansprüche 1 bis 5, gekennzeichnet durch eine mikroperforierte Ventilationszone (6), die in einem Bereich angeordnet ist, der sich von dem mundseitigen Ende des Rauchartikels bis zu 70% der Länge der äußeren Stopfenumwicklung erstreckt.
  7. Rauchartikel nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass sich die Öffnungen (5) in einem Abstand von wenigstens 10 mm von dem mundseitigen Ende des Rauchartikels befinden.
  8. Rauchartikel nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass die einzelnen Öffnungen (5) jeweils eine Fläche im Bereich von 0,5 mm2 bis 20 mm2 haben.
  9. Rauchartikel nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, dass der Gehalt an Aktivkohle in der äußeren Stopfenumwicklung (3) im Bereich von 5 Gewichts-% bis 50 Gewichts-% liegt.
  10. Rauchartikel nach Anspruch 9, dadurch gekennzeichnet, dass der Gehalt an Aktivkohle in der äußeren Stopfenumwicklung (3) im Bereich von 10 Gewichts-% bis 30 Gewichts-% liegt.
  11. Rauchartikel nach einem der Ansprüche 1 bis 10, dadurch gekennzeichnet, dass die Aktivkohle auf die nach außen gerichtete Oberfläche der äußeren Stopfenumwicklung (3) aufgebracht ist.
  12. Rauchartikel nach einem der Ansprüche 1 bis 11, dadurch gekennzeichnet, dass die äußere Stopfenumwicklung (3) einschließlich der Aktivkohle ein Flächengewicht im Bereich von 20 g/m2 bis 80 g/m2 hat.
  13. Rauchartikel nach einem der Ansprüche 1 bis 12, dadurch gekennzeichnet, dass der Tabakstrang (1) mit einem Cigarettenpapier für niedrigen Seitenstrom oder mit mehrfachen Lagen eines Cigarettenpapiers mit einem Seitenstrom reduzierenden Effekt umwickelt ist.
EP14001848.2A 2014-05-27 2014-05-27 Rauchartikel Active EP2949225B1 (de)

Priority Applications (9)

Application Number Priority Date Filing Date Title
HUE14001848A HUE031218T2 (en) 2014-05-27 2014-05-27 tobacco Product
EP14001848.2A EP2949225B1 (de) 2014-05-27 2014-05-27 Rauchartikel
ES14001848.2T ES2618054T3 (es) 2014-05-27 2014-05-27 Artículo para fumar
PT140018482T PT2949225T (pt) 2014-05-27 2014-05-27 Artigo para fumar
PL14001848T PL2949225T3 (pl) 2014-05-27 2014-05-27 Wyrób do palenia
UAA201613143A UA120433C2 (uk) 2014-05-27 2015-05-07 Курильний виріб
RU2016151182A RU2649272C1 (ru) 2014-05-27 2015-05-07 Курительное изделие
PCT/EP2015/000941 WO2015180821A1 (en) 2014-05-27 2015-05-07 Smoking article
TW104114900A TWI643563B (zh) 2014-05-27 2015-05-11 吸煙物品

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP14001848.2A EP2949225B1 (de) 2014-05-27 2014-05-27 Rauchartikel

Publications (2)

Publication Number Publication Date
EP2949225A1 EP2949225A1 (de) 2015-12-02
EP2949225B1 true EP2949225B1 (de) 2017-01-04

Family

ID=50884189

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14001848.2A Active EP2949225B1 (de) 2014-05-27 2014-05-27 Rauchartikel

Country Status (9)

Country Link
EP (1) EP2949225B1 (de)
ES (1) ES2618054T3 (de)
HU (1) HUE031218T2 (de)
PL (1) PL2949225T3 (de)
PT (1) PT2949225T (de)
RU (1) RU2649272C1 (de)
TW (1) TWI643563B (de)
UA (1) UA120433C2 (de)
WO (1) WO2015180821A1 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI618490B (zh) * 2016-04-29 2018-03-21 日本煙草產業股份有限公司 附濾嘴之香煙
EP3819427A4 (de) * 2018-07-02 2022-02-23 Japan Tobacco Inc. Wickelpapier für verbrennungsfreien rauchartikel, verbrennungsfrei erhitzter rauchartikel und elektrisch erhitztes rauchsystem

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH394912A (de) 1960-07-29 1965-06-30 Mueller Paul Adolf Dipl Ing Rauchware, insbesondere Zigarette, mit Mundstück
US3370592A (en) 1965-11-12 1968-02-27 Lorillard Co P Indicating cigarette filter
DE10119820A1 (de) 2001-04-23 2002-10-24 Hauni Maschinenbau Ag Filter und Verfahren zur Herstellung von Filtern
GB0619958D0 (en) 2006-10-09 2006-11-15 Filtrona Int Ltd Tobacco smoke filter
AT508818B1 (de) * 2009-09-30 2011-10-15 Tannpapier Gmbh Mundstückbelag oder filterhülle einer zigarette
GB2481014A (en) 2010-06-07 2011-12-14 British American Tobacco Co Wrapper for a smoking article
EP2462820A1 (de) 2010-12-10 2012-06-13 Philip Morris Products S.A. Rauchartikel mit äußerer Umhüllung mit ausgeschnittenem Bereich
WO2014012841A2 (en) * 2012-07-17 2014-01-23 Philip Morris Products S.A. Smoking article including flavoured wrapper with cut-out portion
EP2719295A1 (de) 2012-10-15 2014-04-16 Philip Morris Products S.A. Belüfteter Rauchartikel mit absorbierendem Material

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
EP2949225A1 (de) 2015-12-02
ES2618054T3 (es) 2017-06-20
TW201600028A (zh) 2016-01-01
HUE031218T2 (en) 2017-06-28
PL2949225T3 (pl) 2017-06-30
WO2015180821A1 (en) 2015-12-03
UA120433C2 (uk) 2019-12-10
PT2949225T (pt) 2017-02-21
TWI643563B (zh) 2018-12-11
RU2649272C1 (ru) 2018-03-30

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