Abstract: A monoazo compound of the formula, ##STR1## wherein D is a heterocyclic or carbocyclic compound residue such as benzothiazolyl and phenyl, X is hydrogen, alkyl, alkoxy, halogeno, acylamino or the like, Y is hydrogen, halogeno, alkyl, alkoxy and the like, R.sub.1 is alkyl, R.sub.2 is C.sub.2 -C.sub.4 alkylene, B is a bridging group such as ##STR2## --O--, --S--, C.sub.1 -C.sub.6 alkylene and the like, and W.sub.1, W.sub.2, W.sub.3, Z.sub.1, Z.sub.2 and Z.sub.3 are independently hydrogen, alkyl, halogeno or the like, which is useful for dyeing hydrophobic fiber materials to give dyed or printed product of a deep color excellent in fastness properties, particularly those such as washing fastness, even after various finishing treatments of the product.

Abstract: A dioxazine compound represented by the following formula (I) in the free acid form, ##STR1## wherein V is a direct linkage or ##STR2## in which R.sub.3 is hydrogen or unsubstituted or substituted alkyl, and X is a direct linkage or an aliphatic, araliphatic or aromatic bridging group, provided that X stands for the bridging group as defined hereinabove when V is ##STR3## Y is unsubstituted or substituted phenylene, or unsubstituted or substituted naphthylene, Z is --SO.sub.2 CH.dbd.CH.sub.2 or --SO.sub.2 CH.sub.2 CH.sub.2 Z.sub.1 in which Z.sub.1 is a group capable of being split by the action of an alkali, Q is sulfo, hydroxy, halo, alkoxy, unsubstituted or substituted phenoxy or unsubstituted or substituted amino, and R.sub.1 and R.sub.

Abstract: A polyazo compound of the following formula, ##STR1## wherein F is a bisazo or trisazo dye moiety, R.sub.1, R.sub.2 and R.sub.3 are independently of one another are each hydrogen or alkyl, B.sub.1 and B.sub.2 independently of one another are each phenylene or naphthylene, Y.sub.1 and Y.sub.2 independently of one another are each --CH.dbd.CH.sub.2 or --CH.sub.2 CH.sub.2 L in which L is group capable of being split by the action of an alkali. The compound is useful for dyeing or printing fiber materials to give dyed or printed products with superior dye performance such as build-up property.

Abstract: A disperse dye composition comprising (a) a pyridone monoazo compound of the formula (I), ##STR1## wherein X.sup.1 and X.sup.2 are each hydrogen, halogen, alkyl, alkoxy or others, and R.sup.1 is alkyl, alkenyl, cycloalkyl, phenyl or anilino, and (b) a pyridone monoazo compound of the formula (II). ##STR2## wherein X.sup.3 and X.sup.4 are each hydrogen, halogen, alkyl, alkoxy or others, and R.sup.2 is alkyl, alkenyl, cycloalkyl, phenyl or anilino, optionally together with (c) a quinophthalone compound of the formula (III), ##STR3## wherein Y is hydrogen or bromine, and the ring A is unsubstituted or substituted benzene or naphthalene ring, which is useful as a yellow dye component for dyeing or printing hydrophobic fiber materials with superior dye bath stability and level dyeing property.

Abstract: A monoazo compound represented by the following formula in the free acid form, ##STR1## wherein D is phenylene or naphthylene, R is hydrogen or alkyl, A is phenylene or naphthylene, Z.sub.1 and Z.sub.2 independently of one another are each vinylsulfonyl, .beta.-sulfatoethylsulfonyl and the like, and X is pyridinio or amino represented by the following formula ##STR2## wherein R.sub.1 and R.sub.2 independently of one another are each hydrogen, alkyl, phenyl, naphthyl or benzyl, which is useful for dyeing or printing fiber materials to give dyed or printed products of red color excellent in fastness properties with excellent build-up, level-dyeing and washing-off properties.

Abstract: 2,4-Dichloro-3-alkyl-6-nitrophenol, which is a precursor of 2,4-dichloro-3-alkyl-6-aminophenol useful for the production of a cyan coupler to be used with a sensitive material in the field of a photography in color, is industrially advantageously produced by (a) nitration of 2,4,5-trichloro-3-alkylbenzene, followed by hydrolysis of the resulting 2,4,5-trichloro-3-alkyl-6-nitrobenzene, or (b) hydrolysis of 2,4,5-trichloro-3-alkylbenzene-6-sulfonic acid or a salt thereof, followed by nitration of the resulting 2,4-dichloro-3-alkylphenol-6-sulfonic acid or a salt thereof, the starting material usable for these processes being 4-alkylbenzenesulfonic acid or a salt thereof, which is easily available.

Abstract: A compound of the following formula in the free acid form, ##STR1## wherein and R and R.sub.1 are each hydrogen or alkyl, A is a divalent group of the formula, ##STR2## wherein R.sub.3, R.sub.4 and R.sub.5 are each hydrogen, methyl, ethyl, methoxy or ethoxy, m is 0 or 1, n, u and v are each 0, 1 or 2, p is 0, 1, 2 or 3, q and s are each an integer of 2 to 6, and r is 1 or 2, B.sub.1 is phenylene or naphthylene, Z.sub.1 is vinyl, .beta.-sulfatoethyl or the like, l is 0, 1 or 2, and X is a group of the formula, ##STR3## wherein R.sub.2 is hydrogen or alkyl, B.sub.2 is phenylene or naphtylene, Z.sub.2 is vinyl, .beta.-sulfatoethyl or the like, R.sub.6 and R.sub.7 are each hydrogen, alkyl, phenyl, naphthyl or benzyl, and R, A and l are as defined above, which is useful for dyeing or printing fiber materials to give a dyed or printed product of a brilliant blue color superior in fastness properties such as light fastness and perspiration-light fastness, with superior build-up property.

Abstract: Anthrapyridone compounds of the formula, ##STR1## wherein R.sub.1 is hydrogen, benzoyl, acetyl or alkyloxycarbonyl, R.sub.2 is hydrogen or alkyl, R.sub.3 is hydrogen, halogen, sulfo, phenoxy, phenylthio or alkoxy, R.sub.4 is hydrogen, halogen or sulfo, R.sub.5 and R.sub.6 are each hydrogen or alkyl, V is --O--, --S-- or ##STR2## in which R.sub.7 is hydrogen, acetyl or alkyl, B is phenylene or naphthylene, D is vinyl or --CH.sub.2 CH.sub.2 L such as --CH.sub.2 CH.sub.2 OSO.sub.3 H, A is a divalent group, and X is halogen, quaternary ammonium, pyridinio, amino or a ##STR3## like group, which are useful for dyeing or printing fiber materials with superior dyeing performance.

Abstract: A reactive metal formazan blue dye represented by a free acid of the formula, ##STR1## wherein A.sub.1 and A.sub.2 are independently a substituted or unsubstituted phenylene or naphthylene group, B is a straight or branched alkyl or alkenyl group, a phenyl group, a naphthyl group or a heterocyclic group, the alkyl, alkenyl, phenyl, napthyl and heterocyclic group being substituted or unsubstituted, Me is an ion of metal identified by an atomic number of 27 to 29, X is --O-- or ##STR2## Y is a halogen atom, Z is a group capable of imparting water solubility, each of l, m and n is 0 or an integer of 1 to 3, provided that the sum of l, m and n is from 1 to 4, D is a substituted or unsubstituted phenylene or naphthylene group, R is a substituted or unsubstituted lower alkyl group, and Q is --SO.sub.2 CH.dbd.CH.sub.2 or --SO.sub.2 CH.sub.2 CH.sub.

Abstract: A dioxazine compound represented by the following formula in a free acid form, ##STR1## wherein R is halogeno, alkyl, alkoxy or sulfo, and W is ##STR2## wherein V is a direct linkage or ##STR3## in which R.sub.3 is hydrogen or alkyl, X is a direct linkage or an aliphatic, alicyclic, araliphatic or aromatic bridging group, Y is unsubstituted or substituted phenylene or naphthylene, Z is --SO.sub.2 CH.dbd.CH.sub.2, --SO.sub.2 CH.sub.2 CH.sub.2 OSO.sub.3 H or the like, Q is sulfo, hydroxy, halogeno, alkoxy, phenoxy or amino, and R.sub.1 and R.sub.2 independently of one another are each hydrogen or alkyl, which is useful for dyeing or printing fiber materials with advantages to give dyed or printed materials superior in fastness properties such as chlorine fastness.

Abstract: A monoazo compound of the following formula, ##STR1## wherein D is sulfonaphthyl, sulfophenyl or carboxyphenyl, any one of A.sub.1 and A.sub.2 is sulfo and the other is hydrogen, methoxy or ethoxy, R.sub.1 and R.sub.2 are independently hydrogen or alkyl, B.sub.1 and B.sub.2 are independently phenylene or naphthylene, and Y.sub.1 and Y.sub.2 are independently vinyl, .beta.-sulfatoethyl or the like, which is useful for dyeing or printing fiber materials to give dyed or printed products of a deep color excellent in fastness properties.

Abstract: A monoazo compound represented by the following formula in a free acid form, ##STR1## wherein D is a sulfophenyl or sulfonaphthyl, R.sub.1, R.sub.2 and R.sub.3 are independently hydrogen or alkyl; B.sub.1 and B.sub.2 are independently phenylene, naphthylene, or alkylene, provided that at least one of B.sub.1 and B.sub.2 is phenylene or naphthylene, Y.sub.1 and Y.sub.2 are independently vinyl or --CH.sub.2 CH.sub.2 Z in which Z is splittable by the action of an alkali, and n is 0 or 1, and the monoazo compound is useful for dyeing or printing fiber materials to obtain dyed or printed products of extremely deep scarlet color excellent in various fastness with superior build-up property.

Abstract: A monoazo compound of the following formula, ##STR1## wherein R.sub.1, R.sub.2 and R.sub.3 are independently hydrogen or alkyl, R.sub.4 is alkyl or carboxy, A is ##STR2## in which R.sub.5 is hydrogen, methyl, methoxy, ethoxy, sulfo or carboxy, X is hydrogen or sulfo, n is 0 or 1, and the asterisked linkage bonds to the azo group, B.sub.1 and B.sub.2 are independently phenylene or naphthylene, W is hydrogen, carbamoyl, sulfoalkyl, cyano, sulfo, chloro or bromo, and Y.sub.1 and Y.sub.2 are independently --CH.dbd.CH.sub.2, --CH.sub.2 CH.sub.2 OSO.sub.3 H or the like, which is useful for dyeing hydroxy group- or carbonamide group-containing materials in a deep yellow color excellent in various fastness properties such as light fastness, perspiration-light fastness and chlorine fastness.

Abstract: Dyed and finished products of cellulose fiber materials superior in fastness properties are obtained without change in color shade by finishing dyed products with a fixing agent or/and a finishing agent capable of bonding with cellulose through a bridge formation, the dyed products being obtained by dyeing cellulose fiber materials with a dye represented by the following formula in the free acid form, ##STR1## wherein A is phenylene or naphthylene, B is alkyl, alkenyl, phenyl, naphthyl or heterocyclic group, Me is metal ion, X is --O-- or ##STR2## Y is alkoxy, phenoxy or amino, Z is sulfo or the like water-solubility-imparting group, m and n are each 0 or an integer of 1 to 3, provided that the sum is 1 to 3, D is phenylene or naphthylene, Q is --SO.sub.2 CH.dbd.CH.sub.2 or --SO.sub.2 CH.sub.2 CH.sub.2 L in which L is splittable group by the action of an alkali and R is hydrogen or alkyl.

Abstract: A triazine compound having a dye moiety, a sym-monohalotriazine moiety and an aminobenzoylamine moiety, which is represented, for example, by the following formula, ##STR1## wherein R.sub.1, R.sub.2 and R.sub.3 are independently hydrogen or alkyl, A is phenylene or naphthylene, D is a dye moiety, X is chloro or fluoro, Z is --SO.sub.2 CH.dbd.CH.sub.2, --SO.sub.2 CH.sub.2 CH.sub.2 OSO.sub.3 H or the like, and n is 0, 1 or 2, and which is useful for dyeing or printing fiber materials such as cellulose fiber materials with superior dye performance such as build-up property to give dyed or printed products excellent is fastness properties.

Abstract: A monoazo compound of the following formula, ##STR1## wherein A is phenyl or naphthyl, B.sub.1 and B.sub.2 are each phenylene or naphthylene, R.sub.1 is hydrogen, halogeno, alkyl, alkoxy, ureido or acylamino, R.sub.2 is hydrogen or takes together with R.sub.1 to form benzene, R.sub.3 is hydrogen, alkyl, alkoxy or sulfo, R.sub.4 and R.sub.5 are each hydrogen or alkyl, and Y.sub.1 and Y.sub.2 are each vinyl, sulfatoethyl or the like, which is useful for dyeing hydroxyl group-containing and amide-containing fiber materials to obtain dyed products of excellent fastness properties with excellent build-up property and reproducibility of dyeing irrespective of changes in dyeing temperatures, bath ratio or salt concentration in some degree.

Abstract: A monoazo compound, or a salt thereof, represented by the formula, ##STR1## wherein D is a sulfophenyl group substituted with a methyl, ethyl, methoxy, ethoxy, phenoxy, acetylamino, pripionylamino, benzoylamino, carboxybenzoylamino, maleinylamino or succinylamino group, a naphthyl group substituted with two or three sulfo groups of a group of the formula ##STR2## any one of X.sub.1 or X.sub.2 is a sulfo group and the other is a methoxy or ethoxy group, Y is a fluorine or chlorine atom or an arylamino group substituted with one or two sulfo groups, R is a hydrogen atom or an unsubstituted or substituted lower alkyl group, A is an unsubstituted or substitued phenylene or naphthylene group, and Z is --SO.sub.2 CH.dbd.CH.sub.2 or --SO.sub.2 CH.sub..sub.2 CH.sub.2 Z.sub.1 in which Z.sub.1 is a group capable of being split by the action of an alkali, which is useful as a fiber-reactive dye for dyeing materials in a greenish yellow color excellent in various fastness properties.

Abstract: A monoazo compound of the following formula in a free acid form, ##STR1## wherein A.sub.1 and A.sub.2 are phenylene or naphthylene, Z.sub.1 and Z.sub.2 are --SO.sub.2 CH.dbd.CH.sub.2 or --SO.sub.2 CH.sub.2 CH.sub.2 Y in which Y is a splittable group, R.sub.1 and R.sub.2 are hydrogen or alkyl, and D is sulfophenyl or sulfonaphthyl, provided that --A.sub.1 --Z.sub.1 and --A.sub.2 --Z.sub.2 are different from each other when D is sulfophenyl and both R.sub.1 and R.sub.2 are hydrogen, which is useful for dyeing or printing fiber materials to give dyed products of high fastness properties with extremely high color depth.

Abstract: A monoazo compound of the following formula in a free acid form, ##STR1## wherein R.sub.1 is alkyl, .beta.-carboxyethyl, .beta.-carboxyvinyl or phenyl, R.sub.2, R.sub.3 and R.sub.4 are each hydrogen or alkyl, A.sub.1 and A.sub.2 are each phenylene or naphthylene, B is ##STR2## in which R.sub.5 is hydrogen, methyl or sulfo, L is hydrogen or sulfo, and the asterisked linkage is bonded to the azo group, and Z.sub.1 and Z.sub.2 are each --SO.sub.2 CH.dbd.CH.sub.2, --SO.sub.2 CH.sub.2 CH.sub.2 OSO.sub.3 H or the like, which is useful for dyeing or printing fiber materials to give dyed or printed products of extremely deep red color excellent in various fastness properties and dischargeability.

Abstract: A dioxazine compound of the formula, ##STR1## wherein A is a divalent group of the formula, ##STR2## in which * and ** denote linkages to the adjacent nitrogen and oxygen atoms, respectively, or the divalent group-containing 3- to 5-condensed aromatic ring residue, R is a substituent such as amino, cyano, nitro, halogeno and the like, V is --SO.sub.2 NR.sub.5 - or the like in which R.sub.5 is hydrogen or the like, X is aliphatic, alicyclic, araliphatic or aromatic divalent group, Y is phenylene or naphthylene, Z is --SO.sub.2 CH.dbd.CH.sub.2 or --SO.sub.2 CH.sub.2 CH.sub.2 Z.sub.1 in which Z.sub.1 is a splittable group, Q is halogeno, amino or the like, R.sub.1 and R.sub.2 are each hydrogen or alkyl, and O<l+m+n.ltoreq.6, provided that O.ltoreq.l.ltoreq.4, O.ltoreq.m<5 and O<n.ltoreq.