EP0881890B1 - Cigarettenfilter - Google Patents

Cigarettenfilter Download PDF

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Publication number
EP0881890B1
EP0881890B1 EP97904435A EP97904435A EP0881890B1 EP 0881890 B1 EP0881890 B1 EP 0881890B1 EP 97904435 A EP97904435 A EP 97904435A EP 97904435 A EP97904435 A EP 97904435A EP 0881890 B1 EP0881890 B1 EP 0881890B1
Authority
EP
European Patent Office
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.)
Expired - Lifetime
Application number
EP97904435A
Other languages
English (en)
French (fr)
Other versions
EP0881890A1 (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
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 SI9730412T priority Critical patent/SI0881890T1/xx
Publication of EP0881890A1 publication Critical patent/EP0881890A1/de
Application granted granted Critical
Publication of EP0881890B1 publication Critical patent/EP0881890B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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 OF CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D3/00—Tobacco smoke filters, e.g. filter tips or filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces of 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

Definitions

  • the invention relates to a cigarette filter according to claim 1 and a method according to Claim 17.
  • 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 filter compared to a commonly used cellulose acetate filter. 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 multiple filters however, is extremely complicated and very expensive.
  • US-A-3,900,037 discloses a filter material in which a Carrier layer made of nonwoven material ("tissue paper") a cellulose acetate coating is applied.
  • the so made Filter material is processed into filter rods and on the Cut the usual cigarette filter lengths.
  • the filter material looks so that on the carrier layer, one Tangled fiber fleece, cellulose acetate as more or less homogeneous, dense layer resembles a layer of paint.
  • cellulose acetate is thus applied to a paper web in the melt-blown process.
  • This material manufactured as a monofilter, surprisingly shows the same retention and taste properties as conventional multiple filters with the same total retention.
  • the production of this novel filter material can in the melt-blown process by using smooth or pre-creped paper webs, which are multilayer, preferably single-layer, in a weight range of 8 to 50 g / m 2 , preferably 15 to 30 g / m 2 take place 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 cellulose acetate plasticized with triacetin, the triacetin softening the wall of the cellulose acetate fibers so that they stick together at their crossing or contact points.
  • This binder can be a hot melt adhesive or e.g. a 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 applied Cellulose fibers are not affected.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Cigarettes, Filters, And Manufacturing Of Filters (AREA)
  • Paper (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Nonwoven Fabrics (AREA)

Description

Die Erfindung betrifft einen Cigarettenfilter gemäß dem Patentanspruch 1 und ein Verfahren gemäß dem Patentanspruch 17.
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 Papierfilter gegenüber einem üblicherweise verwendeten Celluloseacetatfilter. Als Monofilter sind Papierfilter daher nicht geeignet, sondern nur als sg. Doppel-, Dual- oder Mehrfachfilter in Verbindung mit anderem Filtermaterial. Die Herstellung von Mehrfachfiltern ist jedoch äußerst kompliziert und sehr kostenintensiv.
Die US-A-3,900,037 offenbart ein Filtermaterial, bei dem auf eine Trägerschicht aus Vliesmaterial ("tissue paper") eine Celluloseacetat-Beschichtung aufgebracht wird. Das so hergestellte Filtermaterial wird zu Filterstangen verarbeitet und auf die übliche Cigarettenfilterlängen geschnitten. Das Filtermaterial sieht damit so aus, daß sich auf der Trägerschicht, einem Wirrfaservlies, Celluloseacetat als mehr oder weniger homogene, dichte Schicht ähnlich wie eine Farbschicht befindet.
Es ist Aufgabe der Erfindung, ein Filtermaterial und ein Verfahren zur Herstellung eines Filtermaterials für einen Cigarettenfilter zu schaffen, das die Vorteile von Celluloseacetat und Papier vereint.
Zur Lösung dieser Aufgaben dienen die Merkmale der Patentansprüche 1 bzw. 17.
Gemäß Erfindung wird also auf eine Papierbahn Celluloseacetat im Melt-Blown-Verfahren 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, wobei das Triacetin die Wand der Celluloseacetatfasern erweicht, so daß diese an ihren Kreuzungsoder Kontaktstellen miteinander verkleben.
In Abhängigkeit der Mengenverhältnisse von Papier zu Celluloseacetat 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 aufgebrachten Cellulosefasern nicht beeinflußt.

Claims (19)

  1. Filtermaterial für die Herstellung von Cigarettenfiltern, wobei auf eine Bahn aus vorkonfektioniertem Filterpapier geschmolzenes, weichgemachtes Celluloseacetat im Melt-Blown-Verfahren aufgebracht ist.
  2. Filtermaterial nach Anspruch 1, dadurch gekennzeichnet, daß das Celluloseacetat unter Verwendung eines zusätzlichen Bindemittels aufgebracht ist.
  3. Filtermaterial nach Anspruch 1, dadurch gekennzeichnet, daß das Filterpapier ein- oder mehrlagig beschaffen ist.
  4. Filtermaterial nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß das Filterpapier ein Flächengewicht von 8 bis 50 g/m2 hat.
  5. Filtermaterial nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß Flächengewicht pro Filterpapierbahn zwischen 15 und 30 g/m2 liegt.
  6. Filtermaterial nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß das Filterpapier glatt ist.
  7. Filtermaterial nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß das Filterpapier vorgekreppt ist.
  8. Filtermaterial nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, daß das Filterpapier oberflächenreiche Materialien wie Aktivkohle, Meerschaum usw. enthält.
  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.
  10. Filtermaterial nach Anspruch 9, dadurch gekennzeichnet, daß die Additive Vitamine sind.
  11. Filtermaterial nach Anspruch 1, dadurch gekennzeichnet, daß das aufgeblasene Celluloseacetat einen Acetylierungsgrad von 1,2 bis 2,8 hat.
  12. Filtermaterial nach Anspruch 1, dadurch gekennzeichnet, daß der Acetylierungsgrad im Bereich von 1,5 bis 2,5 liegt.
  13. Filtermaterial nach einem der Ansprüche 1 bis 12, dadurch gekennzeichnet, daß das Celluloseacetat frei von Titandioxid ist.
  14. Filtermaterial nach einem der Ansprüche 1 bis 13, dadurch gekennzeichnet, daß das Celluloseacetat mit Triacetin oder anderen Weichmachern versetzt worden ist.
  15. Filtermaterial nach Anspruch 14, dadurch gekennzeichnet, daß das Celluloseacetat bis zu 20% Weichmacher aufweist.
  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.
  17. Verfahren zum Herstellen von Filtermaterial für Cigarettenfilter, bei dem auf eine vorkonfektionierte Bahn aus Papier, das für Cigarettenfilter geeignet ist, geschmolzenes, weichgemachtes Celluloseacetat im Melt-Blown-Verfahren aufgebracht wird.
  18. Verfahren nach Anspruch 17, dadurch gekennzeichnet, daß das Aufbringen von Celluloseacetat auf das Papier unter Verwendung eines Bindemittels erfolgt.
  19. Verfahren nach Anspruch 18, dadurch gekennzeichnet, daß das Celluloseacetat in einer Fadenstärke von 0,1 bis 2 Denier auf das Papier aufgebracht wird.
EP97904435A 1996-02-16 1997-02-13 Cigarettenfilter Expired - Lifetime EP0881890B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SI9730412T SI0881890T1 (en) 1996-02-16 1997-02-13 Cigarette filter

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19605863A DE19605863A1 (de) 1996-02-16 1996-02-16 Cigarettenfilter
DE19605863 1996-02-16
PCT/EP1997/000671 WO1997029655A1 (de) 1996-02-16 1997-02-13 Cigarettenfilter

Publications (2)

Publication Number Publication Date
EP0881890A1 EP0881890A1 (de) 1998-12-09
EP0881890B1 true EP0881890B1 (de) 2002-10-23

Family

ID=7785642

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97904435A Expired - Lifetime EP0881890B1 (de) 1996-02-16 1997-02-13 Cigarettenfilter

Country Status (16)

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

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2220632C2 (ru) * 2000-09-18 2004-01-10 Бурангулов Наиль Идрисович Фильтр для табачных изделий
US20050042470A1 (en) * 2003-08-22 2005-02-24 Vogler John William Cellulose ester based products and methods for making them
US9155335B2 (en) * 2007-12-17 2015-10-13 Celanese Acetate Llc Degradable cigarette filter
EP2357277A1 (de) * 2010-02-12 2011-08-17 Rhodia Acetow GmbH Fotoabbaubares Papier und seine Verwendung
PH12012501896A1 (en) * 2010-03-25 2013-01-14 Japan Tobacco Inc Cigarette filter and a capsule filter cigarette using same
CN101849710B (zh) * 2010-04-29 2011-11-09 云南省玉溪市溶剂厂有限公司 一种烟用保健型增塑剂及其制作方法
GB201007946D0 (en) * 2010-05-12 2010-06-30 British American Tobacco Co Filter additive
CN104053371B (zh) * 2011-12-30 2017-12-08 菲利普莫里斯生产公司 用来供给皱折的片状材料的连续坯料的设备和方法
JP6496705B2 (ja) * 2016-12-16 2019-04-03 株式会社ダイセル 抄紙シート及び抄紙シートの製造方法
US12484611B2 (en) 2017-12-28 2025-12-02 Philip Morris Products S.A. Firm filter for aerosol-generating article
JP7176885B2 (ja) * 2018-08-09 2022-11-22 株式会社ダイセル セルロースアセテート組成物及び成形体

Family Cites Families (7)

* 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 Corp Tobacco-smoke filters
BE788318A (fr) * 1972-09-01 1973-01-02 British American Tobacco Co Filtre pour cigarette, procede de fabrication de ce filtre et dispositif pour la mise en oeuvre de ce procede.
CA1044615A (en) * 1974-01-30 1978-12-19 Minnesota Mining And Manufacturing Company Low pressure drop filter medium
US4357379A (en) * 1979-03-05 1982-11-02 Eastman Kodak Company Melt blown product
US4714647A (en) * 1986-05-02 1987-12-22 Kimberly-Clark Corporation Melt-blown material with depth fiber size gradient
US5509430A (en) * 1993-12-14 1996-04-23 American Filtrona Corporation Bicomponent fibers and tobacco smoke filters formed therefrom
DE4443158A1 (de) * 1994-12-05 1996-06-13 Gessner & Co Gmbh Abreinigbares Filtermedium

Also Published As

Publication number Publication date
HUP9901638A2 (hu) 1999-08-30
HK1018733A1 (en) 2000-01-07
ATE226400T1 (de) 2002-11-15
PL183718B1 (pl) 2002-07-31
RU2222242C2 (ru) 2004-01-27
JP2000505292A (ja) 2000-05-09
SK284831B6 (sk) 2005-12-01
DE19605863A1 (de) 1997-08-21
CN1142727C (zh) 2004-03-24
CZ297733B6 (cs) 2007-03-14
CN1215977A (zh) 1999-05-05
UA45443C2 (uk) 2002-04-15
TW321595B (de) 1997-12-01
SK104198A3 (en) 1999-07-12
PT881890E (pt) 2003-02-28
ES2183134T3 (es) 2003-03-16
DE59708560D1 (de) 2002-11-28
HUP9901638A3 (en) 2000-02-28
WO1997029655A1 (de) 1997-08-21
CZ255198A3 (cs) 1999-11-17
AU1724997A (en) 1997-09-02
PL328341A1 (en) 1999-01-18
EP0881890A1 (de) 1998-12-09

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