Uniformly dyed water-swellable cellulosic fibers

Claim 1

Uniformly dyed water-swellable cellulosic fibers, said fibers being fast to washing, dry cleaning, sublimation and light and having been produced by contacting water-swellable cellulose fibers sequentially or concomitantly with water, ethylene glycol or a derivative thereof and, while the fibers are still swollen, with an essentially water-insoluble dye of the formula ##STR34## in which D is phenyl substituted by fluoro, chloro, bromo, nitro, cyano, trifluoromethyl, methylsulfonyl, ethylsulfonyl, phenylsulfonyl, C 1 to C 8 alkoxycarbonyl, phenoxycarbonyl, benzyloxycarbonyl, phenoxyethoxycarbonyl, C 1 to C 4 alkoxyethoxycarbonyl, methyl, ethyl, methoxy, ethoxy, phenoxy, carboxy, phenylazo, phenylazo bearing fluoro, chloro, bromo, nitro, cyano, trifluoromethyl, methyl, ethyl, methoxy, ethoxy, ##STR35## as a substituent, ##STR36## benzothiazolyl bearing nitro, thiocyanato, methylsulfonyl or methoxy as a substituent; benzoisothioazolyl bearing chloro, bromo, nitro or cyano as a substituent; thioazolyl bearing phenyl or nitro as a substituent or thiodiazolyl bearing phenyl, methylmercapto, ethylmercapto, cyanoethylmercapto or C 1 to C 4 alkoxycarbonylethylmercapto as a substituent; Q is O or S; R is hydrogen, methyl, methoxy or ethoxy; X is hydrogen, chloro, methyl, C 2 to C 4 alkanoylamino, chloroacetylamino, trifluoroacetylamino, benzoylamino, methylsulfonylamino, phenylsulfonylamino or NHCOR 3 --O--Ar; R 5 is C 1 to C 4 alkyl, allyl, β-hydroxyethyl, β-cyanoethyl, β-acetoxyethyl, β-methoxyethyl, β-ethoxyethyl, cyclohexyl, benzyl, β-phenylethyl or C 2 H 4 OCOR 3 --OAr; R 6 is C 1 to C 4 alkyl, allyl, acetoxyethyl, β-cyanoethyl, benzyl or C 2 H 4 OCOR 3 OAr; B 1 is hydrogen, C 1 to C 8 alkyl, cyclohexyl, β-hydroxyethyl, benzyl, phenylethyl or phenyl optionally bearing chloro, methyl or methoxy as a substituent; B 2 is hydrogen, C 1 to C 4 alkyl or β-hydroxyethyl; ##STR37## is pyrrolidyl, piperidyl, morpholyl or NH(CH 2 ) 3 OC 2 H 4 OB 3 ; B 3 is C 1 to C 4 alkyl, cyclohexyl, phenyl or tolyl; T 1 is C 1 to C 8 alkyl, methoxymethyl, phenoxymethyl, phenyl or phenyl bearing chloro, bromo, nitro, methoxy or ethoxy as a substituent; T 2 is hydrogen or methyl; T 3 is methyl, ethyl, phenyl or phenyl bearing chloro, bromo, or methyl as a substituent; T 2 and T 3 together are a fused benzene ring optionally bearing methoxy, ethoxy, methyl or chloro as a substituent; R 3 is C 1 to C 3 alkylene; and Ar is phenyl or phenyl bearing chloro, bromo, methyl or methoxy as a substituent and at least one of the radicals R 5 , R 6 or X contains a group of the formula OCOR 3 --OAr.