Dyeing of polyamide fibers with anionic dyes using a cationic as

Details Dyeing of polyamide fibers with anionic dyes using a cationic as Dyeing of polyamide fibers with anionic dyes using a cationic as

1988-03-03

1989-08-01

Clingman, A. Lionel

Bleaching and dyeing; fluid treatment and chemical modification

Organic additive for dye composition, dye composition...

Carboxamides or thiocarboxamides

8531, 8533, 8534, 8587, 8604, 8606, 8905, 8917, 8924, D06P 306, D06P 160, D06P 502

Patent

active

048529915

ABSTRACT:
The invention relates to a process for dyeing synthetic or natural polyamide fibers with anionic dyestuffs, comprising (i) bringing the polyamide fibers into contact with an aqueous dyeing liquor which contains in addition to one or more dyestuffs a cationic dyeing assistant having affinity for anionic polyamide dyestuffs, and dyeing the polyamide fibers at a temperature of from 60.degree. to 105.degree. C., and (ii) adding an anionic dyeing assistant to the dyeing liquor 15 to 60 minutes after reaching the dyeing temperature, to complete the dye exhaustion. Surface and fibre level dyeings with a good dye penetration are thus obtained.

REFERENCES:
patent: 3740345 (1973-06-01), Berger
patent: 4191532 (1980-03-01), Gross et al.
patent: 4444564 (1984-04-01), Salathe et al.
patent: 4629465 (1986-12-01), Hasler et al.

Affiliated with

Also associated with

Rating

Dyeing of polyamide fibers with anionic dyes using a cationic as does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Dyeing of polyamide fibers with anionic dyes using a cationic as, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Dyeing of polyamide fibers with anionic dyes using a cationic as will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-128455