DE19605863A1 - Cigarette filter - Google Patents

Cigarette filter

Info

Publication number
DE19605863A1
DE19605863A1 DE19605863A DE19605863A DE19605863A1 DE 19605863 A1 DE19605863 A1 DE 19605863A1 DE 19605863 A DE19605863 A DE 19605863A DE 19605863 A DE19605863 A DE 19605863A DE 19605863 A1 DE19605863 A1 DE 19605863A1
Authority
DE
Germany
Prior art keywords
filter material
material according
cellulose acetate
filter
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Withdrawn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
DE19605863A
Other languages
German (de)
Inventor
Edgar Mentzel
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
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 HF and PhF Reemtsma GmbH and Co filed Critical HF and PhF Reemtsma GmbH and Co
Priority to DE19605863A priority Critical patent/DE19605863A1/en
Priority to SK1041-98A priority patent/SK284831B6/en
Priority to PCT/EP1997/000671 priority patent/WO1997029655A1/en
Priority to AU17249/97A priority patent/AU1724997A/en
Priority to CNB971937451A priority patent/CN1142727C/en
Priority to ES97904435T priority patent/ES2183134T3/en
Priority to CZ0255198A priority patent/CZ297733B6/en
Priority to JP9528988A priority patent/JP2000505292A/en
Priority to AT97904435T priority patent/ATE226400T1/en
Priority to RU98117221/13A priority patent/RU2222242C2/en
Priority to EP97904435A priority patent/EP0881890B1/en
Priority to PT97904435T priority patent/PT881890E/en
Priority to SI9730412T priority patent/SI0881890T1/en
Priority to PL97328341A priority patent/PL183718B1/en
Priority to HU9901638A priority patent/HUP9901638A3/en
Priority to UA98094825A priority patent/UA45443C2/en
Priority to DE59708560T priority patent/DE59708560D1/en
Priority to TW086101785A priority patent/TW321595B/zh
Publication of DE19605863A1 publication Critical patent/DE19605863A1/en
Priority to HK99103487A priority patent/HK1018733A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
    • D21H27/08—Filter paper
    • 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
    • A24D3/08—Use of materials for tobacco smoke filters of organic materials as carrier or major constituent
    • A24D3/10—Use of materials for tobacco smoke filters of organic materials as carrier or major constituent of cellulose or cellulose derivatives
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H13/00—Pulp or paper, comprising synthetic cellulose or non-cellulose fibres or web-forming material
    • D21H13/02—Synthetic cellulose fibres
    • D21H13/06—Cellulose esters

Abstract

The invention concerns a filter material which is suitable in particular for producing cigarette filters. The material is characterized in that molten softened cellulose acetate is applied by the melt blown technique to a strip of prefabricated filter paper.

Description

Die Erfindung betrifft einen Cigarettenfilter gemäß Oberbegriff des Patentanspruchs 1.The invention relates to a cigarette filter according to the preamble of claim 1.

Aus konzeptionellen Gründen werden für Cigarettenfilter zunehmend Cellulosefilter eingesetzt. Insbesondere für die Konstruktion für Leicht- und Ultra-Leicht-Cigaretten wird Papier gerne wegen der sehr guten Retentionseigenschaften genommen. Ein großer Nachteil besteht aber in der Geschmacksveränderung durch einen Papierfil­ ter gegenüber einem üblicherweise verwendeten Celluloseacetatfil­ ter. Als Monofilter sind Papierfilter daher nicht geeignet, sondern nur als sg. Doppel-, Dual- oder Mehrfachfilter in Verbindung mit anderem Filtermaterial. Die Herstellung von Mehr­ fachfiltern ist jedoch äußerst kompliziert und sehr kosten­ intensiv.For conceptual reasons, cigarette filters are becoming increasingly popular Cellulose filter used. Especially for the construction of Paper likes to be light and ultra-light cigarettes because of the very good retention properties. A great disadvantage but consists in the change of taste through a paper fil ter compared to a commonly used cellulose acetate fil ter. Paper filters are therefore not suitable as monofilters but only as a so-called Double, dual or multiple filters in Connection with other filter material. The production of more however, filtering is extremely complicated and very expensive intensive.

Aufgabe der Erfindung ist es, ein Filtermaterial für einen Monofilter zu schaffen, der die gleichen Geschmacks- und Retentionseigenschaften wie ein Mehrfachfilter hat. Es ist ferner Aufgabe der Erfindung, ein Verfahren zur Herstellung eines derartigen Filtermaterials anzugeben.The object of the invention is to provide a filter material for a To create monofilters of the same taste and Has retention properties like a multiple filter. It is further Object of the invention, a method for producing a to specify such filter material.

Zur Lösung dieser Aufgaben dienen die Merkmale der Patent­ ansprüche 1 bzw. 17.
To solve these tasks, the features of claims 1 and 17 serve.

Gemäß Erfindung wird also auf eine Papierbahn über ein sog. Melt-Blown-Verfahren Celluloseacetat aufgebracht. Man verbindet hierdurch die guten Retentionseigenschaften der Cellulose mit den selektiven Retentionseigenschaften des Celluloseacetats. Dieses Material, als Monofilter hergestellt, zeigt überraschenderweise die gleichen Retentions- und Geschmackseigenschaften wie herkömmliche Mehrfachfilter gleicher Gesamtretention. Die Herstellung dieses neuartigen Filtermaterials kann in dem Melt-Blown-Prozeß durch Verwendung von glatten oder vorgekreppten Papierbahnen, die mehrlagig, vorzugsweise einlagig, in einem Gewichtsbereich von 8 bis 50 g/m², vorzugsweise 15 bis 30 g/m² liegen, dergestalt erfolgen, daß das aufgeblasene, geschmolzene Celluloseacetat einen Acetylierungsgrad von 1 bis 3, vorzugsweise 1,7 bis 2,6 hat. Dieses Celluloseacetat ist vorzugsweise ein mit Triacetin weichgemachtes Celluloseacetat.According to the invention, a so-called. Melt blown process applied cellulose acetate. You connect thereby the good retention properties of the cellulose with the selective retention properties of the cellulose acetate. This Material, produced as a monofilter, surprisingly shows the same retention and taste properties as conventional multiple filters with the same total retention. The production of this new filter material can be done in the Melt blown process using smooth or pre-creped Paper webs that are multi-ply, preferably single-ply, in one Weight range from 8 to 50 g / m², preferably 15 to 30 g / m² lie in such a way that the inflated, melted Cellulose acetate has a degree of acetylation of 1 to 3, preferably 1.7 to 2.6. This cellulose acetate is preferably a Triacetin plasticized cellulose acetate.

In Abhängigkeit der Mengenverhältnisse von Papier zu Cellulose­ acetat kann es vorteilhaft sein, ein Bindemittel einzusetzen. Dieses Bindemittel kann einen Schmelzklebstoff oder z. B. eine modifizierte extrudierbare und schmelzbare Stärke sein. Letztere ist aus ökologischer Sicht besonders empfehlenswert. In jedem Falle muß darauf geachtet werden, daß die Verarbeitungstemperatur des Bindemittels die Beschaffenheit der nachträglich aufgebrach­ ten Cellulosefasern nicht beeinflußt.Depending on the proportions of paper to cellulose Acetate can be advantageous to use a binder. This binder can be a hot melt adhesive or e.g. Legs modified extrudable and meltable starch. Latter is particularly recommended from an ecological point of view. In each Case must be ensured that the processing temperature of the binder, the nature of the subsequently broke cellulose fibers not affected.

Claims (19)

1. Filtermaterial, insbesondere für die Herstellung von Cigarettenfiltern, dadurch gekennzeichnet, daß auf eine Bahn aus vorkonfektioniertem Filterpapier geschmolzenes, weichge­ machtes Celluloseacetat im Melt-Blown-Verfahren aufgebracht ist.1. Filter material, in particular for the manufacture of cigarette filters, characterized in that melted, made of softened cellulose acetate is applied to a web of pre-assembled filter paper in the melt-blown process. 2. Filtermaterial nach Anspruch 1, dadurch gekennzeichnet, daß das Celluloseacetat unter Verwendung eines zusätzlichen Bindemittels aufgebracht ist.2. Filter material according to claim 1, characterized in that the cellulose acetate using an additional Binder is applied. 3. Filtermaterial nach Anspruch 1, dadurch gekennzeichnet, daß das Filterpapier ein- oder mehrlagig beschaffen ist.3. Filter material according to claim 1, characterized in that the filter paper is made up of one or more layers. 4. Filtermaterial nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß das Filterpapier ein Flächengewicht von 8 bis 50 g/m² hat.4. Filter material according to one of claims 1 to 3, characterized characterized in that the filter paper has a basis weight of 8 to 50 g / m². 5. Filtermaterial nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß Flächengewicht pro Filterpapierbahn zwischen 15 und 30 g/m² liegt.5. Filter material according to one of claims 1 to 4, characterized characterized that basis weight per filter paper web is between 15 and 30 g / m². 6. Filtermaterial nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß das Filterpapier glatt ist.6. Filter material according to one of claims 1 to 5, characterized characterized that the filter paper is smooth. 7. Filtermaterial nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß das Filterpapier vorgekreppt ist.7. Filter material according to one of claims 1 to 5, characterized characterized in that the filter paper is pre-creped. 8. Filtermaterial nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, daß das Filterpapier oberflächenreiche Materialien wie Aktivkohle, Meerschaum usw. enthält.8. Filter material according to one of claims 1 to 7, characterized characterized in that the filter paper has a large surface area Contains materials such as activated carbon, meerschaum etc. 9. Filtermaterial nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, daß das Filterpapier oberflächenreiche Materialien enthält, die mit Aroma bzw. geschmackssteuernden Additiven beaufschlagt sind.9. Filter material according to one of claims 1 to 8, characterized characterized in that the filter paper has a large surface area  Contains materials with aroma or taste control Additives are applied. 10. Filtermaterial nach Anspruch 9, dadurch gekennzeichnet, daß die Additive Vitamine oder gleichwirkende Stoffe sind.10. Filter material according to claim 9, characterized in that the additives are vitamins or substances with the same effect. 11. Filtermaterial nach Anspruch 1, dadurch gekennzeichnet, daß das aufgeblasene Celluloseacetat einen Acetylierungsgrad von 1,2 bis 2,8 hat.11. Filter material according to claim 1, characterized in that the inflated cellulose acetate has a degree of acetylation of 1.2 to 2.8. 12. Filtermaterial nach Anspruch 1, dadurch gekennzeichnet, daß der Acetylierungsgrad im Bereich von 1,5 bis 2,5 liegt.12. Filter material according to claim 1, characterized in that the degree of acetylation is in the range from 1.5 to 2.5. 13. Filtermaterial nach einem der Ansprüche 1 bis 12, dadurch gekennzeichnet, daß das Celluloseacetat frei von Titandioxid ist.13. Filter material according to one of claims 1 to 12, characterized characterized in that the cellulose acetate is free from titanium dioxide is. 14. Filtermaterial nach einem der Ansprüche 1 bis 13, dadurch gekennzeichnet, daß das Celluloseacetat mit Triacetin oder anderen Weichmachern versetzt worden ist.14. Filter material according to one of claims 1 to 13, characterized characterized in that the cellulose acetate with triacetin or other plasticizers. 15. Filtermaterial nach Anspruch 14, dadurch gekennzeichnet, daß das Celluloseacetat bis zu 20% Weichmacher aufweist.15. Filter material according to claim 14, characterized in that the cellulose acetate has up to 20% plasticizer. 16. Filtermaterial nach einem der Ansprüche 1 bis 15, dadurch gekennzeichnet, daß das Celluloseacetat in einer Fadenstärke von 0,1 bis 2 Denier auf das Filterpapier aufgebracht ist.16. Filter material according to one of claims 1 to 15, characterized characterized in that the cellulose acetate in a thread thickness 0.1 to 2 denier is applied to the filter paper. 17. Verfahren zum Herstellen von Filtermaterial für Cigaretten­ filter, dadurch gekennzeichnet, daß auf eine vorkonfektio­ nierte Bahn aus Papier, das für Cigarettenfilter geeignet ist, geschmolzenes, weichgemachtes Celluloseacetat im Melt-Blown-Verfahren aufgebracht wird. 17. Process for producing filter material for cigarettes Filter, characterized in that a pre-confection The paper web is suitable for cigarette filters is melted, plasticized cellulose acetate in the Melt blown process is applied.   18. Verfahren nach Anspruch 17, dadurch gekennzeichnet, daß das Aufbringen von Celluloseacetat auf das Papier unter Ver­ wendung eines Bindemittels erfolgt.18. The method according to claim 17, characterized in that the Applying cellulose acetate to the paper using Ver using a binder. 19. Verfahren nach Anspruch 18, dadurch gekennzeichnet, daß das Celluloseacetat in einer Fadenstärke von 0,1 bis 2 Denier auf das Papier aufgebracht wird.19. The method according to claim 18, characterized in that the Cellulose acetate in a thread thickness of 0.1 to 2 denier is applied to the paper.
DE19605863A 1996-02-16 1996-02-16 Cigarette filter Withdrawn DE19605863A1 (en)

Priority Applications (19)

Application Number Priority Date Filing Date Title
DE19605863A DE19605863A1 (en) 1996-02-16 1996-02-16 Cigarette filter
RU98117221/13A RU2222242C2 (en) 1996-02-16 1997-02-13 Material for cigarette filters and method for manufacturing the same
EP97904435A EP0881890B1 (en) 1996-02-16 1997-02-13 Cigarette filter
AU17249/97A AU1724997A (en) 1996-02-16 1997-02-13 Cigarette filter
CNB971937451A CN1142727C (en) 1996-02-16 1997-02-13 Cigarette filter
ES97904435T ES2183134T3 (en) 1996-02-16 1997-02-13 CIGARETTE FILTER.
CZ0255198A CZ297733B6 (en) 1996-02-16 1997-02-13 Filtering material for manufacture of cigarette filters
JP9528988A JP2000505292A (en) 1996-02-16 1997-02-13 Cigarette filter
AT97904435T ATE226400T1 (en) 1996-02-16 1997-02-13 CIGARETTE FILTER
SK1041-98A SK284831B6 (en) 1996-02-16 1997-02-13 Filter material for cigarette filters and method for producing thereof
PCT/EP1997/000671 WO1997029655A1 (en) 1996-02-16 1997-02-13 Cigarette filter
PT97904435T PT881890E (en) 1996-02-16 1997-02-13 FILTER FOR CIGARETTES
SI9730412T SI0881890T1 (en) 1996-02-16 1997-02-13 Cigarette filter
PL97328341A PL183718B1 (en) 1996-02-16 1997-02-13 Cigarette filter
HU9901638A HUP9901638A3 (en) 1996-02-16 1997-02-13 Filter material for producing of cigarette filter and process for their production
UA98094825A UA45443C2 (en) 1996-02-16 1997-02-13 MATERIAL FOR MANUFACTURE OF CIGARETTE FILTERS AND METHOD OF OBTAINING IT
DE59708560T DE59708560D1 (en) 1996-02-16 1997-02-13 cigarette filters
TW086101785A TW321595B (en) 1996-02-16 1997-02-15
HK99103487A HK1018733A1 (en) 1996-02-16 1999-08-11 A filter material for the production of cigarette filters and a method of producing the same.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19605863A DE19605863A1 (en) 1996-02-16 1996-02-16 Cigarette filter

Publications (1)

Publication Number Publication Date
DE19605863A1 true DE19605863A1 (en) 1997-08-21

Family

ID=7785642

Family Applications (2)

Application Number Title Priority Date Filing Date
DE19605863A Withdrawn DE19605863A1 (en) 1996-02-16 1996-02-16 Cigarette filter
DE59708560T Expired - Lifetime DE59708560D1 (en) 1996-02-16 1997-02-13 cigarette filters

Family Applications After (1)

Application Number Title Priority Date Filing Date
DE59708560T Expired - Lifetime DE59708560D1 (en) 1996-02-16 1997-02-13 cigarette filters

Country Status (17)

Country Link
EP (1) EP0881890B1 (en)
JP (1) JP2000505292A (en)
CN (1) CN1142727C (en)
AT (1) ATE226400T1 (en)
AU (1) AU1724997A (en)
CZ (1) CZ297733B6 (en)
DE (2) DE19605863A1 (en)
ES (1) ES2183134T3 (en)
HK (1) HK1018733A1 (en)
HU (1) HUP9901638A3 (en)
PL (1) PL183718B1 (en)
PT (1) PT881890E (en)
RU (1) RU2222242C2 (en)
SK (1) SK284831B6 (en)
TW (1) TW321595B (en)
UA (1) UA45443C2 (en)
WO (1) WO1997029655A1 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9155335B2 (en) * 2007-12-17 2015-10-13 Celanese Acetate Llc Degradable cigarette filter
EP2357277A1 (en) * 2010-02-12 2011-08-17 Rhodia Acetow GmbH Photodegradable paper and its use
WO2011118001A1 (en) * 2010-03-25 2011-09-29 日本たばこ産業株式会社 Cigarette filter and capsule filter cigarette using same
CN101849710B (en) * 2010-04-29 2011-11-09 云南省玉溪市溶剂厂有限公司 Cigarette health-care plasticizer and manufacturing method thereof
GB201007946D0 (en) * 2010-05-12 2010-06-30 British American Tobacco Co Filter additive
US20140364290A1 (en) * 2011-12-30 2014-12-11 Philip Morris Products S.A. Apparatus and method for supplying a continuous web of crimped sheet material
JP6496705B2 (en) * 2016-12-16 2019-04-03 株式会社ダイセル Papermaking sheet and method for producing papermaking sheet
JP7176885B2 (en) * 2018-08-09 2022-11-22 株式会社ダイセル Cellulose acetate composition and molded article

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2503615C2 (en) * 1974-01-30 1986-10-23 Minnesota Mining And Manufacturing Co., Saint Paul, Minn. Multilayer filter
US4714647A (en) * 1986-05-02 1987-12-22 Kimberly-Clark Corporation Melt-blown material with depth fiber size gradient
DE4443158A1 (en) * 1994-12-05 1996-06-13 Gessner & Co Gmbh Cleanable gas filter

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3900037A (en) * 1969-12-24 1975-08-19 Brown & Williamson Tobacco Tobacco-smoke filters
BE788318A (en) * 1972-09-01 1973-01-02 British American Tobacco Co FILTER FOR CIGARETTE, PROCESS FOR MANUFACTURING THIS FILTER AND DEVICE FOR IMPLEMENTING THIS PROCESS.
US4357379A (en) * 1979-03-05 1982-11-02 Eastman Kodak Company Melt blown product
US5509430A (en) * 1993-12-14 1996-04-23 American Filtrona Corporation Bicomponent fibers and tobacco smoke filters formed therefrom

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2503615C2 (en) * 1974-01-30 1986-10-23 Minnesota Mining And Manufacturing Co., Saint Paul, Minn. Multilayer filter
US4714647A (en) * 1986-05-02 1987-12-22 Kimberly-Clark Corporation Melt-blown material with depth fiber size gradient
DE4443158A1 (en) * 1994-12-05 1996-06-13 Gessner & Co Gmbh Cleanable gas filter

Also Published As

Publication number Publication date
EP0881890B1 (en) 2002-10-23
JP2000505292A (en) 2000-05-09
TW321595B (en) 1997-12-01
PT881890E (en) 2003-02-28
RU2222242C2 (en) 2004-01-27
CN1142727C (en) 2004-03-24
CN1215977A (en) 1999-05-05
ES2183134T3 (en) 2003-03-16
WO1997029655A1 (en) 1997-08-21
ATE226400T1 (en) 2002-11-15
HUP9901638A3 (en) 2000-02-28
SK284831B6 (en) 2005-12-01
HK1018733A1 (en) 2000-01-07
DE59708560D1 (en) 2002-11-28
SK104198A3 (en) 1999-07-12
CZ297733B6 (en) 2007-03-14
AU1724997A (en) 1997-09-02
PL183718B1 (en) 2002-07-31
HUP9901638A2 (en) 1999-08-30
UA45443C2 (en) 2002-04-15
EP0881890A1 (en) 1998-12-09
PL328341A1 (en) 1999-01-18
CZ255198A3 (en) 1999-11-17

Similar Documents

Publication Publication Date Title
DE2732904C3 (en) Elongated filter
DE2711742C2 (en)
EP1834038B1 (en) Nonwoven having improved wet fastness and alkali resistance and cellulose hydrate-based food casing produced from said nonwoven
DE960788C (en) Smoke filter body for tobacco products, especially as a filter mouthpiece for cigarettes
EP3861159B1 (en) Hydroentangled filter material for smoking articles
EP2551407A1 (en) Oil-resistant filter wrapping paper
DE1930435B2 (en) METHOD AND DEVICE FOR MANUFACTURING A FILTER ROD FOR CIGARETTES OR THE LIKE
DD150000A5 (en) TILT PAPER AND METHOD FOR ITS MANUFACTURE
DE3826616A1 (en) TEXTILE REINFORCED TUBULAR PACKING SLEEVE BASED ON CELLULOSE
DE3032502A1 (en) FILTER FOR TOBACCO SMOKING
DE19605863A1 (en) Cigarette filter
DE3311902A1 (en) FILTER MOUTHPIECE FOR CIGARETTES
EP0716816B1 (en) Segmented filter cigarette
CH656781A5 (en) METHOD FOR PRODUCING A MOUTHPIECE FOR FILTER CIGARETTES AND A MOUTHPIECE PRODUCED BY THE METHOD.
DE3802646A1 (en) CIGARETTE
DE1632236A1 (en) Tobacco smoke filters containing split films made of cellulose or cellulose derivatives and processes for their production
EP0254004A2 (en) Aerated cigarette
DE19753195A1 (en) Biologically decomposable filter for cigarettes
DE3032478C2 (en)
DE10060234A1 (en) Smoking product with a hollow mouthpiece tobacco filter
DE2446565A1 (en) POROESES FILTER MOUTH PIECE AND METHOD FOR ITS MANUFACTURING
DE2427583A1 (en) FILTER ELEMENT
DE2149431A1 (en) Filters for tobacco smoke from at least two sections
DE2841077A1 (en) METHOD FOR PRODUCING CIGARETTE FILTERS
AT334267B (en) CIGARETTE MOUTH PIECE

Legal Events

Date Code Title Description
OP8 Request for examination as to paragraph 44 patent law
8127 New person/name/address of the applicant

Owner name: H.F. & PH.F. REEMTSMA GMBH, 22605 HAMBURG, DE

8127 New person/name/address of the applicant

Owner name: REEMTSMA CIGARETTENFABRIKEN GMBH, 22605 HAMBURG, D

8130 Withdrawal