EP 3171717 B1 20201021 - METHOD AND APPARATUS FOR FORMING A FILTER ROD
Title (en)
METHOD AND APPARATUS FOR FORMING A FILTER ROD
Title (de)
VERFAHREN UND VORRICHTUNG ZUR HERSTELLUNG EINES FILTERSTABS
Title (fr)
PROCÉDÉ ET APPAREIL DE FORMATION D'UNE TIGE DE FILTRE
Publication
Application
Priority
- EP 14177986 A 20140722
- EP 2015066642 W 20150721
Abstract (en)
[origin: WO2016012447A1] The present invention provides a method of forming a filter rod (R) of separated fibres and/or randomly oriented filter material fibres (F) for the tobacco processing industry, the method comprising: supplying separated filter material fibres (F) to an inlet (I) of a conveyor device (2), conveying the separated filter material fibres (F) along a process path (P) in a conveying direction (D) from the inlet (I) to an outlet (O) of the conveyor device (2), whereby a strand (4) of the filter material fibres (F) is formed along the process path (P), introducing at least one additive (A), especially a binder, to the strand (4) of filter material fibres (F) on the process path (P) in the conveyor device (2) at a position that is closer to the outlet (O) than the inlet (I), and consolidating the filter material fibres (F) into a filter rod (R) by wrapping the strand (4) of filter material fibres (F) with a wrapper material (6) after the strand (4) exits the outlet (O) of the conveyor device (2) in the conveying direction (D). Desirably, the at least one additive (A) is introduced or applied to the strand (4) of filter material fibres (F) proximate or adjacent to the outlet (O) of the conveyor device (2). The invention also provides an apparatus (1) for forming such a filter rod (R) of separated and/or randomly oriented filter material fibres (F).
IPC 8 full level
A24D 3/02 (2006.01)
CPC (source: EA EP KR US)
A24D 3/0212 (2013.01 - KR); A24D 3/022 (2013.01 - EA EP US); A24D 3/0229 (2013.01 - EA EP KR US); B31D 5/0082 (2013.01 - US); A24D 3/0212 (2013.01 - EA EP US)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
WO 2016012447 A1 20160128; EA 032898 B1 20190731; EA 201790252 A1 20170731; EP 3171717 A1 20170531; EP 3171717 B1 20201021; JP 2017525346 A 20170907; JP 6767358 B2 20201014; KR 102226828 B1 20210312; KR 20170031766 A 20170321; PH 12017500139 A1 20170529; PH 12017500139 B1 20170529; PL 3171717 T3 20210419; US 2017202263 A1 20170720
DOCDB simple family (application)
EP 2015066642 W 20150721; EA 201790252 A 20150721; EP 15738125 A 20150721; JP 2017503901 A 20150721; KR 20177004487 A 20150721; PH 12017500139 A 20170123; PL 15738125 T 20150721; US 201515327824 A 20150721