Abstract: An azo-compound, free acid form of which is represented by the following formula (I): wherein A and B represent, independently with each other, a phenyl having one or two groups selected from sulfo and carboxyl or a naphthyl having 1 to 3 sulfos; R1, R2, R3, R4, R5 and R6 represent, independently with each other, hydrogen, lower alkyl or lower alkoxy; and X represents —N═N— or —NHCO—, and a dye polarizing film containing the azo-compound in a polarizing film base, which exhibits a high polarizing performance and is excellent in durability and light fastness, are provided.

Abstract: An azo-compound, free acid form of which is represented by the following formula (I): 1

Abstract: An asymmetric dioxazine compound represented by the following formula (I) in the free acid form: ##STR1## wherein A.sub.1 and A.sub.2 independently of one another are each sulfo, halo, alkyl or alkoxy, X.sub.1 and X.sub.2 independently of one another are each hydrogen, halo, alkyl, alkoxy or phenoxy, R.sub.1 is hydrogen or unsubstituted or substituted alkyl, R.sub.2 and R.sub.3 independently of one another are each hydrogen, alkyl, alkoxy, halo or unsubstituted or substituted amino, Z is a fiber-reactive group, m and n independently of one another are each 0 or 1, provided that m.noteq.n, and L is 1 or 2. This compound is suitable for dyeing and printing cellulose fiber, natural and synthetic polyamide fibers, polyurethane fiber, leather and the like and mixed yarns thereof, to obtain dyed or printed products of a color fast to light, wetness and chlorine with superior build-up and level dyeing properties.

Abstract: A monoazo compound of the following formula, ##STR1## wherein D is phenylene or naphthylene; X is halogeno, pyridinio or ##STR2## B is --OR.sub.3, --SR.sub.4, ##STR3## in which R.sub.3, R.sub.4, R.sub.5 and R.sub.6 are each hydrogen, alkyl, phenyl, naphthyl or benzyl, r is 0 or 1, and E is O, SO, SO.sub.2, CH.sub.2 or NR.sub.8, in which R.sub.8 is hydrogen or C.sub.1 -C.sub.4 alkyl; R, R.sub.1, R.sub.2 and R.sub.7 are each hydrogen or alkyl; A.sub.1, A.sub.2 and A.sub.3 are each phenylene, naphthylene or alkylene; Z.sub.1, Z.sub.2 and Z.sub.3 are each --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; and p is 0 or 1; which compound is useful for dyeing or printing fiber materials to obtain a product dyed or printed in a color superior in various fastness properties with superior build-up property.

Abstract: A monoazo compound of the following formula, ##STR1## wherein D is phenylene or naphthylene; X is halogeno, pyridinio or ##STR2## B is --OR.sub.3, --SR.sub.4, ##STR3## in which R.sub.3, R.sub.4, R.sub.5 and R.sub.6 are each hydrogen, alkyl, phenyl, naphthyl or benzyl, r is 0 or 1, and E is O, SO, SO.sub.2, CH.sub.2 or NR.sub.8, in which R.sub.8 is hydrogen or C.sub.1 -C.sub.4 alkyl; R, R.sub.1, R.sub.2 and R.sub.7 are each hydrogen or alkyl; A.sub.1, A.sub.2 and A.sub.3 are each phenylene, naphthylene or alkylene; Z.sub.1, Z.sub.2 and Z.sub.3 are each --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; and p is 0 or 1; which compound is useful for dyeing or printing fiber materials to obtain a product dyed or printed in a color superior in various fastness properties with superior build-up property.

Abstract: Herein is provided a trisazo compound represented by formula (I) in the free acid form: ##STR1## wherein Q.sub.1 is an unsubstituted or substituted phenylene or naphthylene group, Q.sub.2 is an unsubstituted or substituted phenyl or naphthyl group, Z is --SO.sub.2 CH.sub.2 CH.sub.2 OH or --SO.sub.2 CH.sub.2 CH.sub.2 SO.sub.3 H group, and L is 0 or 1. The trisazo compound provided herein is excellent in solubility and gives deep colored dyed product or image when used in dyeing or printing, so that it is useful as a dye and an ink. Herein are also provided a method for dyeing fiber materials, paper or leather by using said trisazo compound, and an ink containing said trisazo compound.

Abstract: A dioxazine compound represented by the following formula in the free acid form, ##STR1## wherein V is a direct linkage or ##STR2## in which R.sub.3 is hydrogen or alkyl, X is a direct linkage or an aliphatic, araliphatic or aromatic bridging group, Y is phenylene or naphthylene, Z is a so-called vinylsulfone type fiber reactive group, and R.sub.1 and R.sub.2 are each hydrogen or alkyl, which is useful for dyeing or printing fiber materials to give a dyed or printed product of a blue color superior in fastness properties with superior build-up property.

Abstract: An asymmetric dioxazine compound represented by the following formula (I) in the free acid form: ##STR1## wherein A.sub.1 and A.sub.2 independently of one another are each sulfo, halo, alkyl or alkoxy, W is an unsubstituted or substituted aliphatic or aromatic bridging group, X.sub.1 and X.sub.2 independently of one another are each hydrogen, halo, alkyl, alkoxy or phenoxy, R.sub.1 and R.sub.2 independently of one another are each hydrogen or unsubstituted or substituted alkyl, R.sub.3 and R.sub.4 independently of one another are each hydrogen, halo, alkyl, alkoxy or unsubstituted or substituted amino, Z is a fiber-reactive group, m and n independently of one another are each 0 or 1, provided that m.noteq.n, and l is 1 or 2.

Abstract: A monoazo compound represented by the following formula (I) in the free acid form: ##STR1## wherein X is an alkylamino, C.sub.5 -C.sub.7 cycloalkylamino, piperidino, pyrrolidino or morpholino group which is unsubstituted or substituted with a substituent other than sulfo, R is hydrogen or unsubstituted or substituted C.sub.1 -C.sub.4 alkyl, R.sub.1 and R.sub.2 independently of one another are each hydrogen, methoxy, ethoxy, methyl, ethyl, chloro, bromo, nitro, carboxy or sulfo, Z is vinyl or -CH.sub.2 CH.sub.2 Y in which Y is a group which is split by the action of an alkali and p is 0 or 1. This compound is a reactive dye suitable for dyeing or printing fiber materials containing hydroxyl group and/or amide group in red color. This compound is high in dissolvability and can give dyed or printed products excellent in dyeability such as build-up property and various fastnesses.

Abstract: A fiber reactive dye composition which comprises (1) a reactive dye of the formula (I), and (2) at least one member selected from the group consisting of reactive dyes of the formulas (II) to (IV), the formulas being represented each in the free acid form as follows: ##STR1## wherein Z, Z' and Z" are each --CH.dbd.CH.sub.2 or --CH.sub.2 CH.sub.2 Z.sub.1, --CH.sub.2 CH.sub.2 Z.sub.2 or --CH.sub.2 CH.sub.2 Z.sub.3, respectively, wherein Z.sub.1, Z.sub.2 and Z.sub.3 are each a group capable of being split by the action of an alkali, and Q is --SO.sub.2 CH.dbd.CH.sub.2 located at o-, m- or p-position against the imino when the --SO.sub.2 Z in the formula (I) is located at o-, m- or p-position against the imino, respectively, provided that the reactive dye of the formula (I) is one having --CH.sub.2 CH.sub.2 Z.sub.

Abstract: A benzodifuranone compounds of the formula, ##STR1## wherein R.sup.1 and R.sup.2 are each independently a naphthyl group or an unsubstituted or substituted phenyl group, which is useful for dyeing or printing hydrophobic fiber materials, is prepared in high purity and high yield by allowing benzofuran compounds of the formula, ##STR2## wherein R.sup.1 is as defined above, to react with acetonitrile compounds of the formula, ##STR3## wherein R.sup.2 is as defined above, and then carrying out an oxidation reaction to give the benzodifuranone compound.

Abstract: Anthraquinone compounds of the formula, ##STR1## wherein R is hydrogen, alkyl or the like, R.sub.1 and R.sub.2 are each hydrogen, halogen or sulfo, l is 1 or 2, X is sulfo or the like or --V--A--(W).sub.m --Z, and Y is --V.sub.1 --A.sub.1 --U, wherein V and V.sub.1 are each --O-- or --S--, A and A.sub.1 are each a divalent group such as ##STR2## W is --NH-- or the like, Z is hydrogen or a fiber reactive group, and U is hydrogen, a fiber reactive group or a fiber reactive group-containing group, provided that at least one of Z and U is or has a fiber reactive group, which is useful for dyeing or printing fiber materials such as cotton to give a dyed or printed product having excellent fastness properties, particularly those such as light fastness and perspiration-light fastness.

Abstract: A granular type reactive dye composition containing a reactive dye, an inorganic salt and water, the water content being from 4.5 through 15% by weight and the inorganic salt content being 20% by weight or less, both based on the weight of the composition, which is excellent in storage stability, compatibility with water and hot water, and reproducibility, when used for dyeing or printing cellulose fibers.

Abstract: A triazine compound which is useful for dyeing or printing materials containing hydroxyl group and/or amide group, and which has the following formula (I) or salts thereof ##STR1## wherein R represents hydrogen or unsubstituted or substituted alkyl; R.sub.1 represents hydrogen, an alkyl unsubstituted or substituted by carboxy, sulfo, alkoxy, halogeno, sulfato or hydroxy, or --Y--SO.sub.2 Z.sub.3 ; R.sub.2 represents hydrogen or unsubstituted or substituted alkyl; A represents unsubstituted or substituted phenylene or naphthylene; Y represents a divalent group which is C.sub.2 -C.sub.7 alkylene and so on; Z.sub.1, Z.sub.2 and Z.sub.3 independently of one another are each --CH.dbd.CH.sub.2 or --CH.sub.2 CH.sub.

Abstract: A heterocyclic compound which is useful for dyeing or printing hydrophobic fiber materials and which has the following formula (I), ##STR1##wherein A.sub.1, A.sub.2, A.sub.3 and A.sub.4 are each hydrogen, halogen, alkyl, alkoxy or alkenyl, X.sub.1 is --O-- or the like, R.sub.1 is a methylene or the like, X.sub.2 is a direct linkage or a divalent group of --O--, --S--, --SO--, --SO.sub.2 --, ##STR2## in which R.sub.3 is a hydrogen atom or a C.sub.1-4 alkyl group, ##STR3## in which R.sub.3 is as defined above, T and u are each independently hydrogen or a C.sub.1-4 alkyl, l is O or an integer of 1 to 3, Q is an unsubstituted or substituted 5-, 6- or 7-membered saturated or unsaturated heterocyclic residue, Y is hydrogen, C.sub.1-4 alkyl, a C.sub.1-4 alkoxy group or the like.

Abstract: A reactive dye composition comprising a monoazo compound of the following formula (I) in the free acid form, ##STR1## and at least one member selected from monoazo compounds of the following formulas (II) to (IV) in each free acid form, ##STR2## wherein Z, Z' and Z'" are each --CH.dbd.CH.sub.2 or --CH.sub.2 CH.sub.2 Z.sub.1, --CH.sub.2 CH.sub.2 Z.sub.2 or --CH.sub.2 CH.sub.2 Z.sub.3, respetively, in which Z.sub.1, Z.sub.2 and Z.sub.3 are each a group capable of being split by the action of an alkali, Z" is --CH.dbd.CH.sub.2, and any one of X and Y is sulfo, and the other is hydrogen, exhibits superior dye performance such as solubility, storage stability and build-up property, and is useful for dyeing or printing fiber materials such as cellulose fiber in a red color excellent in various fastness properties.

Abstract: A polyazo compound of the following formula, ##STR1## wherein X is ##STR2## --NR.sub.2 R.sub.3, --OR.sub.4 or --SR.sub.5, in which R.sub.1 is hydrogen or alkyl, R.sub.2, R.sub.3, R.sub.4 and R.sub.5 are each hydrogen, alkyl, phenyl, naphthyl or benzyl, A is phenylene, naphthylene or alkylene, Z is a fiber-reactive group of --SO.sub.2 CH.dbd.CH.sub.2 or --SO.sub.2 CH.sub.2 CH.sub.2 Z' in which Z' is a splittable group, Y is pyridinio, and F is polyazo dye moiety carrying a fiber-reactive group like that represented by Z, which compound is useful for dyeing or printing fiber materials to obtain a product dyed or printed in a color superior in various fastness properties with superior build-up property.

Abstract: A polyazo compound of the following formula, ##STR1## wherein A is phenylene, naphthylene or alkylene, X is --NR.sub.2 R.sub.3, --OR.sub.4 or --SR.sub.5 in which R.sub.2, R.sub.3, R.sub.4 and R.sub.5 are each hydrogen, alkyl, phenyl, naphthylene or benzyl, Z is --SO.sub.2 CH.dbd.CH.sub.2 or --SO.sub.2 CH.sub.2 CH.sub.2 Z' in which Z' is a splittable group, R.sub.1 is hydrogen or alkyl, and F is polyazo dye moiety carrying a fiber reactive group like that represented by Z. This compound is useful for the dyeing or printing of fiber materials to obtain a product dyed or printed in a color superior in various fastness properties with superior build-up property.

Abstract: Anthraquinone compounds of the formula, ##STR1## wherein R is hydrogen, alkyl or the like, R.sub.1 and R.sub.2 are each hydrogen, halogen or sulfo, l is 1 or 2, X is sulfo or the like or --V--A--(W).sub.m --Z, and Y is --V.sub.1 --A.sub.1 --U, wherein V and V.sub.1 are each --O-- or --S--, A and A.sub.1 are each a divalent group such as ##STR2## W is --NH-- or the like, Z is hydrogen or a fiber reactive group, and U is hydrogen, a fiber reactive group or a fiber reactive group-containing group, provided that at least one of Z and U is or has a fiber reactive group, which is useful for dyeing or printing fiber materials such as cotton to give a dyed or printed product having excellent fastness properties, particularly those such as light fastness and perspiration-light fastness.

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.