Process for aftertreating dyed fibrous material made of or conta

Details Process for aftertreating dyed fibrous material made of or conta Process for aftertreating dyed fibrous material made of or conta

1983-07-15

1985-05-07

Clingman, A. Lionel

Bleaching and dyeing; fluid treatment and chemical modification

Bleaching

Chemical

8543, 8584, 8650, 8918, 8549, 252180, 25218625, 25218628, D06L 302, D06P 340, D06P 502

Patent

active

045155968

ABSTRACT:
Dyed fibrous materials made of or containing cellulose which were not bleached before dyeing are aftertreated in a combined bleaching and washing bath which can, optionally, contain as stabilizers derivatives of phosphonic or phosphorous acid, optionally as a combination with polyhydroxy compounds. The resulting materials have bright and brilliant shades.
This aftertreatment makes it possible to by-pass the otherwise customary, time-consuming and expensive drying of the materials between a bleach before dyeing and the dyeing itself.

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