Uniformly dyed water-swellable cellulosic fibers

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

1979-11-16

1981-10-13

Clingman, A. Lionel

Bleaching and dyeing; fluid treatment and chemical modification

Organic additive for dye composition, dye composition...

Alcohol

8532, 8678, 8679, 8918, 260378, 260383, C09B 100, C09B 156

Patent

active

042945810

ABSTRACT:
Uniformly dyed water-swellable cellulosic fibers which have been produced by contacting water-swellable cellulosic fibers successively or simultaneously with water, with ethylene glycol, propylene glycol or derivatives of these and with an essentially water-insoluble dye of the formula ##STR1## where Y is unsubstituted or substituted phenyl or naphthyl or an unsubstituted or substituted saturated or unsaturated 5-membered or 6-membered heterocyclic radical, two of the three radicals X are hydroxyl and the remaining radical X is ##STR2## where A is chlorine, bromine, cyano, nitro, an aliphatic, cycloaliphatic, araliphatic or aromatic radical and n is 0, 1, 2 or 3 and where, if n>1, the radicals are identical or different. Deep reddish blue to green dyeings or prints are obtained. The dyeings have very good fastness characteristics.

REFERENCES:
patent: 2979528 (1961-04-01), Lundsted
patent: 3656880 (1972-04-01), Blackwell
patent: 3706525 (1972-12-01), Blackwell et al.
patent: 3711245 (1973-01-01), Neumer
patent: 3841888 (1974-10-01), Belde et al.
patent: 3872056 (1975-03-01), Daubach
patent: 3888624 (1975-06-01), Blackwell et al.
patent: 3899519 (1975-08-01), Renfrew et al.
patent: 4049377 (1977-09-01), Schwab et al.

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