Uniformly dyed water-swellable cellulosic fibers

Details Uniformly dyed water-swellable cellulosic fibers Uniformly dyed water-swellable cellulosic fibers

1978-04-07

1979-06-12

Clingman, A. Lionel

Bleaching and dyeing; fluid treatment and chemical modification

Treatment of hides, skins, feathers and animal tissues

Tanning

8 21C, 8 22, 8 39R, 8 41C, 8 542, 8 93, C09B 2700

Patent

active

041578937

ABSTRACT:
Uniformly dyed water-swellable cellulosic fibers obtained by dyeing cellulosic fibers in the swollen state with a dye of the formula ##STR1## in which one R is R.sup.1, OR.sup.1, SR.sup.1 or ##STR2## the other R is ##STR3## R.sup.1 and R.sup.2 independently of one another are hydrogen or an aliphatic, cycloaliphatic, araliphatic or aromatic radical, ##STR4## may also be a saturated heterocyclic radical, and D is the radical of a diazo component. The dyed fibers exhibit very good fastness properties.

REFERENCES:
patent: 3667897 (1972-06-01), Blackwell et al.
patent: 3706525 (1972-12-01), Blackwell et al.
patent: 3711245 (1973-01-01), Neumer
patent: 3752645 (1973-08-01), McGuire
patent: 3752646 (1973-08-01), Blackwell
patent: 3752647 (1973-08-01), Mentzer
patent: 4049377 (1977-09-01), Schwab et al.

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