EP1255458B1 - Filter cigarette - Google Patents

Filter cigarette Download PDF

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Publication number
EP1255458B1
EP1255458B1 EP01902150A EP01902150A EP1255458B1 EP 1255458 B1 EP1255458 B1 EP 1255458B1 EP 01902150 A EP01902150 A EP 01902150A EP 01902150 A EP01902150 A EP 01902150A EP 1255458 B1 EP1255458 B1 EP 1255458B1
Authority
EP
European Patent Office
Prior art keywords
filter
wrapping paper
cigarette
coating
cigarettes
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
EP01902150A
Other languages
German (de)
French (fr)
Other versions
EP1255458A1 (en
Inventor
Ernst Brunbauer
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.)
Trierenberg Holding AG
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Trierenberg Holding AG
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 Trierenberg Holding AG filed Critical Trierenberg Holding AG
Priority to AT01902150T priority Critical patent/ATE262802T1/en
Publication of EP1255458A1 publication Critical patent/EP1255458A1/en
Application granted granted Critical
Publication of EP1255458B1 publication Critical patent/EP1255458B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • A24D1/027—Cigars; Cigarettes with special covers with ventilating means, e.g. perforations
    • 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
    • A24D1/025—Cigars; Cigarettes with special covers the covers having material applied to defined areas, e.g. bands for reducing the ignition propensity
    • 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
    • A24D3/06—Use of materials for tobacco smoke filters
    • A24D3/16—Use of materials for tobacco smoke filters of inorganic materials

Definitions

  • the invention relates to a filter cigarette, the filter of which is surrounded by a filter wrapping paper which encloses a tip coating, the inside of the filter wrapping paper being coated with metal, in particular with aluminum.
  • the invention is therefore based on a filter cigarette, the filter of which is surrounded by a filter wrapping paper which surrounds a tip coating, wherein air can penetrate into the filter through the filter wrapping paper.
  • the coating is applied only to part of the filter wrapping paper so that air can penetrate through it into the filter.
  • the metallization can be carried out by applying in particulate form and / or by suitably applying flat patterns to the wrapping paper on the paper surface, but not by completely coating the filter wrapping paper.
  • a partial coating of the filter wrapping paper with metallic surfaces causes a selective reduction in the carbon monoxide content of the main stream smoke.
  • FIG. 1 aluminum strips were applied to a commercially available highly porous paper for wrapping cigarette filters (Papierfabrik Wattens GmbH, QNo. 27400) with an air permeability of 6000 CU by means of a hot-foil process.
  • the width of the wrapping paper was 26.5 mm
  • the width of the aluminum strip was 1 mm.
  • the distance between the strips was 1 mm.
  • Filter rods for cigarettes were produced in a manner known per se from a bobbin with a length of approx. 1000 m and with industrial acetate cable.
  • the structure of such a filter rod made of acetate cable 1, wrapping paper 2 and mouthpiece covering 3 is shown, with 4 the aluminum strips according to the invention are designated.
  • the filter wrap paper 2 was coated with aluminum in a finely divided manner, with the structure of the filter rod remaining the same with respect to the acetate cable 1 and the mouthpiece covering 3, but the aluminum layer 5 was highly porous.
  • This type of aluminum coating ensures that the air permeability of the filter wrapping paper is sufficiently maintained, so that, as in the exemplary embodiment in FIG. 1, sufficient air can enter the side of the cigarette filter.
  • Table 2 shows the results of the measurement of the same parameters as in Table 1, however, in comparison between cigarettes with standard filter wrapping paper and with the filter wrapping paper 2 coated with a finely divided, highly porous aluminum layer 5 according to the invention.
  • Tab. 2 Results of the standardized smoking of cigarettes with (modified) and without (standard) finely divided, highly porous aluminum coating 5 on the filter wrapping paper 2.
  • puff number Nicotine mg / cig
  • Nicotine-free dry condensate mg / cig.
  • CO mg / cig.
  • Modified filter wrapping paper 7.71 0.43 7.67 11.33 Standard filter wrapping paper 7.99 0.46 7.62 14,26
  • the invention combines the known advantage of filter ventilation with an effect due to the metal coating.
  • the two exemplary embodiments show that the effect can be detected regardless of the type of metal coating, as long as the combination of air permeability of the filter wrapping paper and the metal coating of the filter wrapping paper mentioned in claim 1 is ensured.
  • the invention in this sense is not limited to the exemplary embodiments shown, but rather includes all possible combinations of the exemplary embodiments shown here and other exemplary embodiments within the meaning of claim 1.

Description

Die Erfindung betrifft eine Filterzigarette, deren Filter mit einem Filterumwickelpapier umgeben ist, welches ein Mundstücksbelag umschließt, wobei die Innenseite des Filterumwickelpapiers mit Metall, insbesondere mit Aluminium beschichtet ist.The invention relates to a filter cigarette, the filter of which is surrounded by a filter wrapping paper which encloses a tip coating, the inside of the filter wrapping paper being coated with metal, in particular with aluminum.

Die Entwicklung von Zigaretten mit reduzierten Rauchinhaltsstoffen, im besonderen Nikotin, Kondensat und Kohlenmonoxid, wurde global durch gesetzliche Regelungen, eine höhere Konsumentenakzeptanz und ein gesteigertes Gesundheitsbewußtsein vorangetrieben.The development of cigarettes with reduced smoke constituents, in particular nicotine, condensate and carbon monoxide, has been driven forward globally by legal regulations, a higher level of consumer acceptance and an increased health awareness.

Üblicherweise werden für die Fertigung von Zigaretten mit reduzierten Rauchinhaltsstoffen hochtuftdurchtässige und brennfreudige Zigarettenpapiere verwendet und der Zigarettenfilter wurde durch eine perforierte Zone des Mundstückbelages zusätzlich belüftet. Beide technische Maßnahmen verdünnen den Hauptstromrauch durch Nebenluft und reduzieren dadurch die Konzentration der Rauchinhaltsstoffe. Die Verwendung von Filtermaterial mit hoher Retentionswirkung und hohem Zugwiderstand bewirkt ebenfalls eine Reduktion der Rauchinhaltsstoffe, stößt aber auf Limittierungen bei der Akzeptanz durch den Konsumenten.Highly tuft-permeable and easy-to-burn cigarette papers are usually used for the production of cigarettes with reduced smoke constituents and the cigarette filter was additionally ventilated through a perforated zone of the mouthpiece covering. Both technical measures dilute the main stream smoke through secondary air and thereby reduce the concentration of smoke constituents. The use of filter material with a high retention effect and high tensile resistance also results in a reduction in the smoke content, but comes up against limitations in consumer acceptance.

Beim Stand der Technik sind aus der DE 3038093 A1, WO 89/03183 A1 und CH 343865 Zigarettenfilter bekannt, bei denen Metall in den Filter eingebracht wird. Dies bedeutet jedoch zum einen einen erheblichen Mehraufwand bei der Herstellung der Filter, zum anderen wird der dadurch erzielte Effekt nur sehr vage in seiner Wirkung beschrieben.In the prior art, cigarette filters are known from DE 3038093 A1, WO 89/03183 A1 and CH 343865, in which metal is introduced into the filter. On the one hand, this means a considerable additional effort in the production of the filter, on the other hand, the effect achieved is only described very vaguely in its effect.

Die Erfindung geht somit von einer Filterzigarette aus, deren Filter mit einem Filterumwickelpapier umgeben ist, welches ein Mundstücksbelag umschließt, wobei Luft durch das Filterumwickelpapier in den Filter eindringen kann. Erfindungsgemäß ist vorgesehen, daß die Beschichtung nur auf einem Teil des Filterumwickelpapiers angebracht ist, damit Luft durch dieses in den Filter eindringen kann.The invention is therefore based on a filter cigarette, the filter of which is surrounded by a filter wrapping paper which surrounds a tip coating, wherein air can penetrate into the filter through the filter wrapping paper. According to the invention it is provided that the coating is applied only to part of the filter wrapping paper so that air can penetrate through it into the filter.

Die Metallisierung kann durch partikelförmige Aufbringung und/oder durch geeignete Auftragung von flächigen Mustern auf das Umhüllpapier auf die Papieroberfläche erfolgen, nicht jedoch durch vollständige Beschichtung des Filterumwickelpapiers. Überraschenderweise bewirkt eine teilweise Beschichtung des Filterumwickelpapiers mit metallischen Flächen eine selektive Reduktion des Kohlenmonoxidgehaltes des Hauptstromrauches.The metallization can be carried out by applying in particulate form and / or by suitably applying flat patterns to the wrapping paper on the paper surface, but not by completely coating the filter wrapping paper. Surprisingly, a partial coating of the filter wrapping paper with metallic surfaces causes a selective reduction in the carbon monoxide content of the main stream smoke.

Weitere Merkmale und Einzelheiten der vorliegenden Erfindung ergeben sich aus der nachfolgenden Figurenbeschreibung. Dabei zeigt:

  • Fig. 1 ein erfindungsgemäßes Filterumwickelpapier mit Aluminiumstreifen und
  • Fig. 2 ein erfindungsgemäßes Filterumwickelpapier mit einer feinverteilten und hochporösen Aluminiumschicht.
Further features and details of the present invention result from the following description of the figures. It shows:
  • Fig. 1 is an inventive filter wrapping paper with aluminum strips and
  • Fig. 2 is an inventive filter wrapping paper with a finely divided and highly porous aluminum layer.

In Fig. 1 wurden auf ein kommerziell erhältliches hochporöses Papier zur Umwickelung von Zigarettenfiltern (Papierfabrik Wattens GmbH, QNr. 27400) mit einer Luftdurchlässigkeit von 6000 CU mittels eines hot-foil-Verfahrens Aluminiumstreifen aufgebracht. Die Breite des Umwickelpapier betrug 26,5 mm, die Breite des Aluminiumstreifens war 1 mm. Der Abstand zwischen den Streifen betrug 1 mm. Aus einer Bobine mit ca. 1000 m Länge sowie mit industriell üblichem Acetatkabel wurden in an sich bekannter Weise Filterstäbe für Zigaretten gefertigt. In der Zeichnung ist der Aufbau eines solchen Filterstäbchens aus Acetatkabel 1, Umwickelpapier 2 und Mundstücksbelag 3 dargestellt, mit 4 sind die erfindungsgemäßen Aluminiumstreifen bezeichnet.In FIG. 1, aluminum strips were applied to a commercially available highly porous paper for wrapping cigarette filters (Papierfabrik Wattens GmbH, QNo. 27400) with an air permeability of 6000 CU by means of a hot-foil process. The width of the wrapping paper was 26.5 mm, the width of the aluminum strip was 1 mm. The distance between the strips was 1 mm. Filter rods for cigarettes were produced in a manner known per se from a bobbin with a length of approx. 1000 m and with industrial acetate cable. In the drawing, the structure of such a filter rod made of acetate cable 1, wrapping paper 2 and mouthpiece covering 3 is shown, with 4 the aluminum strips according to the invention are designated.

Unter Verwendung dieser Filterstäbchen wurden maschinell Zigaretten gefertigt. Zu Vergleichszwecken wurden Zigaretten auf Basis derselben Zusammensetzung hinsichtlich Filter, Zigarettenpapier und Tabakmischung, jedoch ohne eine vorherige zonenweise Beschichtung des Filterumwickelpapieres hergestellt. Die hergestellten Zigaretten wurden in einem Rauchlabor unter standardisierten Bedingungen abgeraucht. Die Rauchinhaltsstoffe des Hauptrauchstromes weisen einen selektiv und signifikant niedrigeren Kohlenmonoxidgehalt auf, wie in Tabelle 1 gezeigt. Tab. 1: Ergebnisse des standardisierten Abrauchens von Zigaretten mit (modifiziert) und ohne (standard) Aluminiumstreifen 4 auf dem Filterumwickelpapier 2. Zugzahl Nikotin (mg/Zig) Nikotinfreies Trockenkondensat (mg/Zig.) CO (mg/Zig.) Modifiziertes Filterumwickelpapier 8,42 (8,44) 0,61 (0,64) 8,37 (8,31) 9,04 (8,58) Standard Filterumwickelpapier 8.12 (8.24) 0,63 (0,64) 9,06 (9,08) 11,86 (10,96) Using these filter sticks, cigarettes were machine made. For comparison purposes, cigarettes were produced on the basis of the same composition with regard to filters, cigarette paper and tobacco mixture, but without a previous zone-wise coating of the filter wrapping paper. The manufactured cigarettes were smoked in a smoke laboratory under standardized conditions. The smoke constituents of the main smoke stream have a selectively and significantly lower carbon monoxide content, as shown in Table 1. Tab. 1: Results of standardized smoking of cigarettes with (modified) and without (standard) aluminum strips 4 on the filter wrapping paper 2. puff number Nicotine (mg / cig) Nicotine-free dry condensate (mg / cig.) CO (mg / cig.) Modified filter wrapping paper 8.42 (8.44) 0.61 (0.64) 8.37 (8.31) 9.04 (8.58) Standard filter wrapping paper 8.12 (8.24) 0.63 (0.64) 9.06 (9.08) 11.86 (10.96)

In Klammer sind die Ergebnisse einer zweiten, unabhängigen Meßserie angegeben. ÖZF: Österreichische Zigarettenfilter GmbH, Hainburg/DonauThe results of a second, independent series of measurements are given in brackets. ÖZF: Österreichische Zigarettenfilter GmbH, Hainburg / Danube

Fig. 2 zeigt eine andere erfindungsgemäße Ausführungsform. Hier wurde bei ansonsten gleichbleibendem Aufbau des Filterstäbchens bezüglich des Acetatkabels 1 und des Mundstückbelags 3 das Filterumwickelpapier 2 fein verteilt mit Aluminium beschichtet, wobei jedoch die Aluminiumschicht 5 hochporös ausgebildet war. Diese Art der Aluminiumbeschichtung gewährleistet, daß die Luftdurchlässigkeit des Filterumhüllpapiers ausreichend erhalten bleibt, sodaß wie auch im Ausführungsbeispiel in Fig. 1 ausreichend Luft seitlich in den Zigarettenfilter eintreten kann.2 shows another embodiment according to the invention. Here, the filter wrap paper 2 was coated with aluminum in a finely divided manner, with the structure of the filter rod remaining the same with respect to the acetate cable 1 and the mouthpiece covering 3, but the aluminum layer 5 was highly porous. This type of aluminum coating ensures that the air permeability of the filter wrapping paper is sufficiently maintained, so that, as in the exemplary embodiment in FIG. 1, sufficient air can enter the side of the cigarette filter.

Zum Vergleich und Nachweis der Wirkung der hochporösen Aluminiumschicht 5 wurden neben den erfindungsgemäßen Ausführungsformen gemäß Fig. 2 ebenfalls ansonsten identische Zigarettenfilter ohne die erfindungsgemäße Aluminiumbeschichtung 5 auf dem Umwickelpapier 2 gefertigt. Mit diesen Filterstäbchen wurden ansonsten gleichwertige Zigaretten mit und ohne erfindungsgemäße Beschichtung 5 maschinell hergestellt. Die hergestellten Zigaretten unterschieden sich somit nur in dem Vorhandensein der erfindungsgemäßen Beschichtung 5 voneinander. Die so hergestellten Zigaretten wurden ebenfalls wie beim Ausführungsbeispiel in Fig. 1 in einem Rauchlabor unter standardisierten Bedingungen abgeraucht. Die gemessenen Rauchinhaltsstoffe des Rauchhauptstroms weisen ebenfalls einen selektiv und signifikant niedrigeren Kohlenmonoxidgehalt und damit den selben Effekt wie im ersten Ausführungsbeispiel auf. Tabelle 2 zeigt die Ergebnisse der Messung der selben Parameter wie in Tabelle 1 jedoch im Vergleich zwischen Zigaretten mit Standardfilterumwickelpapier und mit dem erfindungsgemäßen mit einer feinverteilten hochporösen Aluminiumschicht 5 beschichteten Filterumwickelpapier 2. Tab. 2: Ergebnisse des standardisierten Abrauchens von Zigaretten mit (modifiziert) und ohne (standard) feinverteilter, hochporöser Aluminiumbeschichtung 5auf dem Filterumwickelpapier 2. Zugzahl Nikotin (mg/Zig) Nikotinfreies Trockenkondensat (mg/Zig.) CO (mg/Zig.) Modifiziertes Filterumwickelpapier 7,71 0,43 7,67 11,33 Standard Filterumwickelpapier 7,99 0,46 7,62 14,26 To compare and demonstrate the effect of the highly porous aluminum layer 5, in addition to the embodiments according to the invention shown in FIG. 2, otherwise identical cigarette filters were also produced on the wrapping paper 2 without the aluminum coating 5 according to the invention. With these filter sticks, equivalent cigarettes with and without the coating 5 according to the invention were otherwise machined. The cigarettes thus produced differ from one another only in the presence of the coating 5 according to the invention. The cigarettes thus produced were also smoked in a smoke laboratory under standardized conditions, as in the exemplary embodiment in FIG. 1. The measured smoke constituents of the main smoke stream also have a selectively and significantly lower carbon monoxide content and thus the same effect as in the first embodiment. Table 2 shows the results of the measurement of the same parameters as in Table 1, however, in comparison between cigarettes with standard filter wrapping paper and with the filter wrapping paper 2 coated with a finely divided, highly porous aluminum layer 5 according to the invention. Tab. 2: Results of the standardized smoking of cigarettes with (modified) and without (standard) finely divided, highly porous aluminum coating 5 on the filter wrapping paper 2. puff number Nicotine (mg / cig) Nicotine-free dry condensate (mg / cig.) CO (mg / cig.) Modified filter wrapping paper 7.71 0.43 7.67 11.33 Standard filter wrapping paper 7.99 0.46 7.62 14,26

Offensichtlich vereinigt die Erfindung den bekannten Vorteil der Filterbelüftung mit einem auf die Metallbeschichtung zurückzuführenden Effekt. Hierbei zeigen die beiden Ausführungsbeispiele, daß der Effekt unabhängig von der Art der Metallbeschichtung nachweisbar ist, solange die in Anspruch 1 genannte Kombination aus Luftdurchlässigkeit des Filterumwickelpapiers und der Metallbeschichtung des Filterumwickelpapiers gewährleistet ist. Dies verdeutlicht, daß die Erfindung sich in diesem Sinne nicht auf die gezeigten Ausführungsbeispiele beschränkt, sondern alle möglichen Kombinationen der hier gezeigten Ausführungsbeispiele sowie andere Ausführungsbeispiele im Sinne des Anspruchs 1 einschließt.Obviously, the invention combines the known advantage of filter ventilation with an effect due to the metal coating. Here, the two exemplary embodiments show that the effect can be detected regardless of the type of metal coating, as long as the combination of air permeability of the filter wrapping paper and the metal coating of the filter wrapping paper mentioned in claim 1 is ensured. This makes it clear that the invention in this sense is not limited to the exemplary embodiments shown, but rather includes all possible combinations of the exemplary embodiments shown here and other exemplary embodiments within the meaning of claim 1.

Auf welchen physikalischen oder chemischen Mechanismus dieser Effekt zurückzuführen ist, bleibt zu untersuchen. Eine mögliche Erklärung wäre die Adsorption von Kohlenmonoxid am Metall, wogegen eine rein katalytische Wirkung aufgrund der niedrigen Temperatur im Filter unwahrscheinlich ist.It remains to be determined which physical or chemical mechanism is responsible for this effect. A possible explanation would be the adsorption of carbon monoxide on the metal, whereas a purely catalytic effect is unlikely due to the low temperature in the filter.

Claims (4)

  1. A filter cigarette whose filter is surrounded by a filter wrapping paper which a tip layer encloses, wherein the inside of the filter wrapping paper is coated with metal, in particular aluminum, characterized in that the coating is applied only to a portion of the filter wrapping paper (2) so that air can penetrate therethrough into the filter (1).
  2. A filter cigarette as set forth in claim 1 characterized in that the metal coating comprises aluminum.
  3. A filter cigarette as set forth in claim 1 or claim 2 characterized in that the metal coating consists of longitudinally extending strips (4).
  4. A filter cigarette as set forth in one of claims 1 through 3 characterized in that the metal coating (5) is applied in finely distributed and highly porous form to the filter wrapping paper (2).
EP01902150A 2000-02-14 2001-01-30 Filter cigarette Expired - Lifetime EP1255458B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT01902150T ATE262802T1 (en) 2000-02-14 2001-01-30 FILTER CIGARETTE

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
AT2192000 2000-02-14
AT0021900A AT408501B (en) 2000-02-14 2000-02-14 FILTER CIGARETTE
PCT/AT2001/000022 WO2001058289A1 (en) 2000-02-14 2001-01-30 Filter cigarette

Publications (2)

Publication Number Publication Date
EP1255458A1 EP1255458A1 (en) 2002-11-13
EP1255458B1 true EP1255458B1 (en) 2004-03-31

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EP01902150A Expired - Lifetime EP1255458B1 (en) 2000-02-14 2001-01-30 Filter cigarette

Country Status (15)

Country Link
US (1) US6832613B2 (en)
EP (1) EP1255458B1 (en)
JP (1) JP4556054B2 (en)
KR (1) KR100583858B1 (en)
AT (1) AT408501B (en)
AU (1) AU2986701A (en)
BR (1) BR0108272A (en)
CA (1) CA2398946C (en)
CZ (1) CZ293200B6 (en)
DE (1) DE50101844D1 (en)
ES (1) ES2218372T3 (en)
PL (1) PL203160B1 (en)
RU (1) RU2241360C2 (en)
UA (1) UA72029C2 (en)
WO (1) WO2001058289A1 (en)

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AT512347B1 (en) 2011-12-23 2013-09-15 Tannpapier Gmbh AS A FILM TRAINED MOUTHPIECE OF A FILTER CIGARETTE
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US20160165950A1 (en) * 2014-12-12 2016-06-16 Lorillard Tobacco Company Reduction of carbon monoxide in mainstream cigarette smoke
GB201505515D0 (en) * 2015-03-31 2015-05-13 British American Tobacco Co A composite web and method of manufacturing a smoking article component
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108035195A (en) * 2017-12-12 2018-05-15 江西中烟工业有限责任公司 A kind of cork paper of the extract containing composite natral plant and preparation method thereof

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CA2398946C (en) 2008-12-09
RU2241360C2 (en) 2004-12-10
DE50101844D1 (en) 2004-05-06
ES2218372T3 (en) 2004-11-16
JP4556054B2 (en) 2010-10-06
KR100583858B1 (en) 2006-05-26
PL203160B1 (en) 2009-08-31
EP1255458A1 (en) 2002-11-13
BR0108272A (en) 2003-03-05
JP2003530829A (en) 2003-10-21
ATA2192000A (en) 2001-05-15
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US6832613B2 (en) 2004-12-21
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RU2002124606A (en) 2004-01-20
WO2001058289A1 (en) 2001-08-16

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