EP 2084315 B1 20140108 - METHOD AND APPARATUS FOR CRIMPING A MULTIFILAMENT THREAD
Title (en)
METHOD AND APPARATUS FOR CRIMPING A MULTIFILAMENT THREAD
Title (de)
VERFAHREN UND VORRICHTUNG ZUM KRÄUSELN EINES MULTIFILEN FADENS
Title (fr)
PROCÉDÉ ET DISPOSITIF DE FRONÇAGE D'UN FIL MULTIFILAMENT
Publication
Application
Priority
- EP 2007061264 W 20071022
- DE 102006052058 A 20061104
Abstract (en)
[origin: WO2008052900A1] The invention relates to a method and an apparatus for crimping a multifilament thread, wherein the thread which is produced by melt spinning is compressed to a thread plug. The thread plug is cast on the circumference of a rotating processing drum for thermal treatment and is wrapped around the circumference of the processing drum with many side-by-side wraparounds. Following that, the thread plug is unravelled in an unravelling area on the circumference of the processing drum into the crimped thread which is pulled off the processing drum. To obtain a continuous and regular unravelling of the thread plug with multiple wraparounds and mutual touching of the wraparounds of the thread plug, the thread is guided at a slant from the unravelling area of the thread plug such that a growing axial space appears between the thread and the thread plug, on the circumference of the processing drum, during increasing wraparounds of the thread on the circumference of the processing drum.
IPC 8 full level
D02G 1/12 (2006.01)
CPC (source: EP US)
D02G 1/12 (2013.01 - EP US); D02G 1/122 (2013.01 - EP US); D02G 1/14 (2013.01 - EP US)
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 MT NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2008052900 A1 20080508; CN 101528996 A 20090909; CN 101528996 B 20110316; EP 2084315 A1 20090805; EP 2084315 B1 20140108; RU 2009121102 A 20101210; US 2009249765 A1 20091008; US 7712197 B2 20100511
DOCDB simple family (application)
EP 2007061264 W 20071022; CN 200780040474 A 20071022; EP 07821628 A 20071022; RU 2009121102 A 20071022; US 43341309 A 20090430