EP 2692942 A1 20140205 - METHOD FOR DYEING ARAMID FIBERS
Title (en)
METHOD FOR DYEING ARAMID FIBERS
Title (de)
VERFAHREN ZUM FÄRBEN VON ARAMIDFASERN
Title (fr)
PROCÉDÉ POUR LA TEINTURE DE FIBRES D'ARAMIDE
Publication
Application
Priority
- JP 2011074295 A 20110330
- JP 2011104846 A 20110510
- JP 2012058390 W 20120329
Abstract (en)
This is to provide a method for dyeing aramid fibers and dyed aramid fibers, which method is a dyeing method which can be applied to either of the para-type aramid fibers, the para-type copolymerized aramid fibers and the meta-type aramid fibers, which can be dyed to a practical color depth required for developing new applications of the aramid fibers, and color unevenness, dimensional change, or lowering in physical properties are not generated so remarkably in the aramid fibers after dyeing, further, colorfastness of the dyed product, in particular, colorfastness to light is good. A method for dyeing aramid fibers which comprises a dye providing step in which a vat dye or a sulfur dye is provided to aramid fibers, a solvent treatment step in which the aramid fibers are treated by a treating solution containing a polar solvent, and after the solvent treatment step, a heat treatment step in which the aramid fibers are subjected to a heat treatment, if necessary, and having one or more dyeing operations comprising the combination of the respective steps dyeing operations.
IPC 8 full level
D06P 1/22 (2006.01); D06P 1/30 (2006.01); D06P 3/24 (2006.01); D06P 5/00 (2006.01); D06P 5/02 (2006.01); D06P 5/04 (2006.01); D06P 5/22 (2006.01)
CPC (source: EP KR US)
D06P 1/22 (2013.01 - EP KR US); D06P 1/30 (2013.01 - EP KR US); D06P 3/24 (2013.01 - KR); D06P 3/243 (2013.01 - EP US); D06P 5/001 (2013.01 - EP US); D06P 5/02 (2013.01 - EP US); D06P 5/04 (2013.01 - KR); D06P 5/22 (2013.01 - 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)
EP 2692942 A1 20140205; EP 2692942 A4 20141001; BR 112013025123 A2 20170214; CA 2830147 A1 20121004; CN 103459710 A 20131218; CN 103459710 B 20160224; JP 5938396 B2 20160622; JP WO2012133662 A1 20140728; KR 20140037833 A 20140327; MX 2013011267 A 20131017; US 2014020190 A1 20140123; WO 2012133662 A1 20121004
DOCDB simple family (application)
EP 12763059 A 20120329; BR 112013025123 A 20120329; CA 2830147 A 20120329; CN 201280016988 A 20120329; JP 2012058390 W 20120329; JP 2013507727 A 20120329; KR 20137028615 A 20120329; MX 2013011267 A 20120329; US 201214007819 A 20120329