EP 1921934 A2 20080521 - FILTER OR FILTER ELEMENT FOR TOBACCO SMOKE. CIGARETTE CONTAINING SUCH A FILTER OR FILTER ELEMENT AND METHOD FOR PRODUCING SUCH A FILTER OR FILTER ELEMENT
Title (en)
FILTER OR FILTER ELEMENT FOR TOBACCO SMOKE. CIGARETTE CONTAINING SUCH A FILTER OR FILTER ELEMENT AND METHOD FOR PRODUCING SUCH A FILTER OR FILTER ELEMENT
Title (de)
FILTER ODER FILTERELEMENT FÜR TABAKRAUCH. ZIGARETTE MIT EINEM DERARTIGEN FILTER ODER FILTERELEMENT UND VERFAHREN ZUR HERSTELLUNG EINES DERARTIGEN FILTERS ODER FILTERELEMENTES
Title (fr)
FILTRE OU ELEMENT FILTRANT POUR LA FUMEE DU TABAC, CIGARETTE POURVUE D'UN TEL FILTRE OU ELEMENT FILTRANT ET PROCEDE DE FABRICATION D'UN TEL FILTRE OU ELEMENT FILTRANT
Publication
Application
Priority
- EP 2006007922 W 20060810
- DE 102005042099 A 20050905
- DE 102005060972 A 20051220
Abstract (en)
[origin: WO2007028476A2] The invention relates to a filter or filter element with a substantially cylindrical filter body, which contains, in particular, at least two different additives, the additives being located in at least two zones which are arranged one after the other in the longitudinal-axial direction of the filter body and/or in at least two zones, more particularly layers, which at least in sections lie one above the other in the radial direction of the filter body. The invention also relates to a filter or filter element for tobacco smoke, comprising a substantially cylindrical filter body that can be made from a material which in its initial state is flat, more particularly endlessly curled filaments, paper, fibrous webbing, textile material, non-woven and the like, the filter body comprising at least two zones which are arranged one after the other in the longitudinal-axial direction of the filter body, a tobacco-end zone containing an additive and a mouth-end zone being free from additive. The subject matter according to the invention permits better filtering of burnt products. The invention also relates to a method which is particularly suitable for producing filters or filter elements for tobacco smoke, in which method a filter body is provided with at least two different zones, the additive being applied to a flat starting material from which the filter body is formed in substantially parallel strips and/or in layers one above the other.
IPC 8 full level
A24D 3/04 (2006.01)
CPC (source: EP KR US)
A24B 15/245 (2013.01 - EP KR US); A24D 3/048 (2013.01 - EP US); A24D 3/16 (2013.01 - EP US); A24D 3/163 (2013.01 - EP KR US)
Citation (search report)
See references of WO 2007028476A2
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2007028476 A2 20070315; WO 2007028476 A3 20070726; BR PI0617062 A2 20110712; EP 1921934 A2 20080521; JP 2009506761 A 20090219; KR 20080053314 A 20080612; RU 2008113195 A 20091020; RU 2413438 C2 20110310; US 2010037905 A1 20100218
DOCDB simple family (application)
EP 2006007922 W 20060810; BR PI0617062 A 20060810; EP 06776743 A 20060810; JP 2008528377 A 20060810; KR 20087007249 A 20080325; RU 2008113195 A 20060810; US 99149406 A 20060810