Abstract: Diaminopyridine dyes for dyeing cellulose-containing fibers, particularly cellulose fibers and polyester-cellulose fibers in from orange to bluish red, with excellent fastness to light. The dyes are represented by the formula (I): ##STR1## X is a hydrogen atom, or a halogen atom; Y is an alkoxy group containing from 1 to 5 carbon atoms, --O--R.sup.10 --O--R.sup.11, or a phenoxy group; andn is 2 or 3, and wherein R.sup.1 is a nitro group, a cyano group, a methylsulfonyl group, a phenylsulfonyl group, a mono- or di-lower alkylaminosulfonyl group, an acetyl group, or a benzoyl group; R.sup.2 and R.sup.3 are each a hydrogen atom, a trifluoromethyl group, a halogen atom, or a cyano group; R.sup.4 is a hydrogen atom, a lower alkyl group, a mono- or di-lower alkylaminosulfonyl group, a mono- or di-lower alkylcarbamoyl group, or an acetylamino group; R.sup.5 and R.sup.6 are each a hydrogen atom, a halogen atom, or a lower alkyl group; R.sup.7 is a lower alkyl group; R.sup.8 is a hydrogen atom or a halogen atom; R.

Abstract: Quinophthalone dyes for cellulose-containing fibers represented by the following general formula: ##STR1## wherein X represents a hydrogen atom, a chlorine atom or a bromine atom, --A-- represents a methylene group, an ethylene group, a propylene group or a 1,3-butylene group, n represents 0 or 1, --Y-- represents a linkage group of --O-- or --S--, R.sup.1 and R.sup.2 each represents a hydrogen atom, an alkyl or alkenyl group which may optionally be substituted with a cyano group, a hydroxy group, a lower alkoxy group or by a dialkylamino group, or R.sup.1 and R.sup.2 may be combined together with the adjacent nitrogen atom to form a 5- or 6-membered, nitrogen-containing heterocyclic ring having the total carbon atom number in R.sup.1 and R.sup.2 of up to 18.

Abstract: Dye compositions for dyeing polyester fibers comprise at least one disazo dye represented by the formula (I): ##STR1## wherein X represents a hydrogen atom, a chlorine atom, a nitro group or a trifluoromethyl group; Y represents a cyano group, an alkoxycarbonyl group or a carbamoyl group; Z represents a hydrogen atom, a chlorine atom, a methyl group, a hydroxyl group, or an alkyl group substituted with a formylamino group or an acylamino group; R.sup.1 and R.sup.

Abstract: Disazo dyes for dyeing cellulose-containing fibers, particularly fibers having both cellulose and polyester, of the formula ##STR1## Mixed fibers dyed with the dyes of the invention result in surprisingly more uniform color than previously obtainable. In the above formula R.sup.1 and R.sup.2 are independently selected from H, halogen, nitro, cyano, trifluoromethyl, lower alkoxycarbonyl, lower alkyl, and lower alkoxy; R.sup.3, R.sup.4, and R.sup.5, are independently selected from H, halogen, lower alkyl, lower alkoxy, lower alkoxy-lower alkoxy, and acylamino; R.sup.6 and R.sup.7 are independently selected from H, allyl, aralkyl, and lower alkyl which may be further substituted with halogen, cyano, lower alkoxy, lower alkoxycarbonyl, OH, and acyloxy; and X is selected from amino, mono- or dialkylamino having a total of 1-6 carbon atoms, anilino, lower alkoxy and --O--(R.sup.8 O).sub.n --R.sup.9, wherein R.sup.8 is ethylene or propylene, R.sup.9 is methyl or ethyl, and n is 1-5.

Abstract: Reactive disazo dyes for dyeing cellulose-containing fibers, represented by the general formula (I): ##STR1## wherein ##STR2## is a phenyl group which may be substituted; Y.sup.1 is a phenyl group which may be substituted; Y.sup.2 is an allyl group, a benzyl group, or an alkyl group which may be substituted; ##STR3## is a phenyl group which may be substituted; and ##STR4## is a phenyl group which may be substituted, ##STR5## is a naphthylene group, or a phenylene group which may be substituted, ##STR6## is a phenylene group which may be substituted, and R.sup.1 and R.sup.2 are each a hydrogen atom, an alkyl group which may be substituted by a cyano group, a hydroxy group, a lower alkoxy group, or a dialkylamino group, or may combine together in combination with N to form a 5- or 6- membered nitrogen-containing heterocyclic ring, the total number of carbon atoms of R.sup.1 and R.sup.2 being 18 or less.

Abstract: An anthraquinone dye for cellulose-containing fibers having the formula (I) indicated below and a process for producing the same are disclosed: ##STR1## wherein R.sup.1 is an amino group or a hydroxyl group; R.sup.2 is a hydrogen atom, a chlorine atom, a bromine atom, a cyano group or --SO.sub.2 R (wherein R is a lower alkyl group or a phenyl group); R.sup.3 and R.sup.4 are each a hydrogen atom, an amino group, a hydroxyl group, a nitro group, a chlorine atom or a bromine atom; Y is a bonding group --O-- or --S--; one of X.sup.1 and X.sup.2 is a hydrogen atom and the other is ##STR2## (wherein Z is a bonding group --O-- or --S--; R.sup.5 is a lower alkyl group, a lower alkoxy group or a hydrogen atom; R.sup.6 and R.sup.7 are each a hydrogen atom or an alkyl group, an alkenyl group, a cyanohexyl group, an aryl group or an aralkyl group which may be substituted by a cyano group, a hydroxyl group, a lower alkoxy group or a dialkylamino group, or NR.sup.6 R.sup.

Abstract: A disperse dye composition containing:20 to 50% by weight of a water-insoluble or sparingly soluble dye; and1 to 5% by weight of a water-soluble surface active agent represented by the formula: ##STR1## wherein R.sup.1 is a hydrogen atom or an .alpha.-methylbenzyl group, R.sup.2 is a hydrogen atom or an .alpha.-methylbenzyl group, R.sup.3 is a hydrogen atom or a methyl group, R.sup.4 is a hydrogen atom, a methyl group or an .alpha.-methylbenzyl group, any one of l and n is 0 and the other is an integer of 7 to 20, and m is an integer of 0 to 5.