Title:
POLYURETHANE UREA ELASTIC YARN DYEABLE WITH REACTIVE DYE AND MANUFACTURING METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2022/025342
Kind Code:
A1
Abstract:
The present invention relates to a polyurethane urea elastic yarn dyeable with a reactive dye, comprising a reaction product of two or more polyols, a diisocyanate compound, a diamine chain extender, an amine chain terminator, and a diethylenetriamine compound, wherein one of the polyols is polyethylene glycol that is included in an amount of 20 to 30.0 mol% relative to the total polyols, a polyurethane urea polymer comprises 10 meq/Kg to 45 meq/Kg of primary amine end portions, and a capping ratio (CR) of the two kinds of polyols and diiocyanate is 1.8 to 2.0. The polyurethane urea elastic yarn of the present invention can be dyed with a reactive dye, and thus the grin-through phenomenon can be improved when a blended product of cellulose-based fiber and polyurethane is dyed. The polyurethane urea elastic yarn of the present invention can improve color fastness without harming the intrinsic properties of the polyurethane urea elastic yarn, such as elongation and heat resistance, and thus the range of use of the polyurethane urea elastic yarn can be expanded.
Inventors:
KANG JI YOUNG (KR)
KANG YEON SOO (KR)
KIM TAE HEON (KR)
CHO SEONG BIN (KR)
KANG YEON SOO (KR)
KIM TAE HEON (KR)
CHO SEONG BIN (KR)
Application Number:
PCT/KR2020/013094
Publication Date:
February 03, 2022
Filing Date:
September 25, 2020
Export Citation:
Assignee:
HYOSUNG TNC CORP (KR)
International Classes:
D01F6/70; D01D5/04; D01F1/10; D01F6/72; D02G3/32; D06P3/24
Foreign References:
| KR20200024054A | 2020-03-06 | |||
| KR20100046927A | 2010-05-07 | |||
| KR101959146B1 | 2019-03-15 | |||
| KR20140034850A | 2014-03-20 | |||
| KR20050050473A | 2005-05-31 | |||
| KR100580326B1 | 2006-05-15 | |||
| KR20140081515A | 2014-07-01 |
Attorney, Agent or Firm:
KIM, Hak Je et al. (KR)
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