EP 2067892 A1 20090610 - Polyester/spandex elastic fabric dyeing method
Title (en)
Polyester/spandex elastic fabric dyeing method
Title (de)
Färbeverfahren für elastisches Polyester-/Spandexgewebe
Title (fr)
Procédé de teinture de tissu élastique en polyester/élasthanne
Publication
Application
Priority
EP 07122687 A 20071207
Abstract (en)
A dyeing method for polyester/spandex elastic fabric includes dyeing and reduction rinsing processes; the dyeing process involving a chemical bath in a solution containing dispersing dye, ammonium acetate, and dyeing auxiliary at a given bath ratio and temperature; and the reduction rinsing process involving another chemical bath in solution containing sodium dithionite, sodium hydroxide, and rinse auxiliary at a given bath-ratio for the polyester to have better dyeing color under the low temperature dyeing conditions while allowing lighter dye absorption on the spandex; or better dye absorption for the spandex while delivering better color fastness to improve and upgrade color fastness, dyeing results, and quality.
IPC 8 full level
D06P 1/66 (2006.01); D06P 1/673 (2006.01); D06P 3/54 (2006.01); D06P 3/82 (2006.01)
CPC (source: EP)
D06P 1/66 (2013.01); D06P 1/67375 (2013.01); D06P 3/54 (2013.01); D06P 3/8214 (2013.01)
Citation (search report)
- [XY] WO 2007053160 A2 20070510 - INVISTA TECH SARL [US], et al
- [Y] US 5760111 A 19980602 - BIRBAUM JEAN-LUC [CH], et al
- [A] DATABASE WPI Week 200504, Derwent World Patents Index; AN 2005-033487, XP002474377
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
Designated extension state (EPC)
AL BA HR MK RS
DOCDB simple family (publication)
DOCDB simple family (application)
EP 07122687 A 20071207