Abstract: A phthalocyanine monoazo compound which is represented by the following formula (I): ##STR1## wherein Pc represents a phthalocyanine group; M represents nickel, cobalt or copper;R.sub.1 represents a hydrogen atom or a lower alkyl group;R.sub.2 and R.sub.3 represent a hydrogen atom, a lower alkyl group, a lower alkoxy group or a sulfo group;R.sub.4 represents a hydrogen or a lower alkyl group;A represents a group containing a triazine group or a pyrazole group and/or --SO.sub.2 X wherein X represents --CH.dbd.CH.sub.2 or --CH.sub.2 CH.sub.2 Y and Y represents a group splittable by the action of an alkali;p is a number of 0-2; q is a number of 1-3; r is a number of 1-2; p+q+r is 4 or lessor which is a salt of the compound of formula (I).

Abstract: A phthalocyanine monoazo compound which is represented by the following formula (I): ##STR1## wherein the variable radicals have the meaning given in the description, and the phthalocyanine monoazo compound has green color.

Abstract: A reactive dye composition containing a reactive dye and a salt of polyoxyethylene substituted-phenyl ether ester produces excellent solubility in water and in an aqueous alkali solution and can be used to dye a fiber material uniformly.

Abstract: An aqueous liquid dye composition comprising a dye represented by the following formula in a free acid form, ##STR1## wherein Y is --CH.dbd.CH.sub.2 or --CH.sub.2 CH.sub.2 X in which X is a group splittable by the action of an alkali, and a pH buffer, the dye being in the form of a lithium salt, and the liquid dye composition having a pH value of from 3 through 7 and a dye content of from 5 through 50% by weight based on the weight of the liquid dye composition, which can be stored stably for a long period of time even at a low temperature such as 0.degree. C. or lower, and a high temperature such as 40.degree. C. or higher.

Abstract: A reactive dye composition which comprises a combination of 20 to 99% by weight of a dye represented by a free acid of the formula, ##STR1## and 1 to 80% by weight of an alkylnaphthalenesulfonic acid/formaldehyde condensate having a sulfonation degree of 50 to 150% and an average condensation degree of 1.1 to 3.0, which is very readily soluble in water and aqueous alkali liquors, resistant to coagulation when prepared into a color paste for printing, and useful for dyeing or printing cellulose fiber materials yellow with a high color yield, particularly by a one-bath pad dyeing method or printing method.

Abstract: An improved process for producing sulfuric acid semiesters of the formula:NH.sub.2 -A--SO.sub.2 CH.sub.2 CH.sub.2 OSO.sub.3 H).sub.nwherein A is a substituted or unsubstituted aromatic group, and n is an integer of 1 or 2, which are important as intermediates of the vinylsulfonic reactive dyes, said process comprising reacting a compound of the formula:B-NH-A--SO.sub.2 CH.sub.2 CH.sub.2 OH).sub.nwherein A and n are as defined above, and B is hydrogen or a group capable of being hydrolyzed by an acid, with an acid.

Abstract: A reactive dye composition containing a dye mixture comprising 60 to 97 wt. % of C.I. Reactive Orange 16 and 40 to 3 wt. % of C.I. Reactive Orange 7, and 5 to 100 parts by weight per 100 parts by weight of said dye mixture of a naphthalenesulfonic acid/formaldehyde condensate having a sulfonation degree of 100 to 200%, which is very readily soluble in water and an aqueous alkaline solution and useful for dyeing cellulose fibers with a high color yield.

Abstract: An improved process for producing sulfuric acid semiesters of the formula:NH.sub.2 --A--SO.sub.2 CH.sub.2 CH.sub.2 OSO.sub.3 H).sub.nwherein A is a substituted or unsubstituted aromatic or heterocyclic group, and n is an integer of 1 or 2, which are important as intermediate of the vinylsulfonic reactive dyes, said process comprising reacting a compound of the formula:B--NH--A--SO.sub.2 CH.sub.2 CH.sub.2 OH).sub.norCO(NH--A--SO.sub.2 CH.sub.2 CH.sub.2 OH).sub.2wherein A and n are as defined above, and B is hydrogen or a group capable of being hydrolyzed by an acid, with an acid.

Abstract: A dye composition comprising at least one disazo dye of the formula (I) expressed in the form of a free acid, ##STR1## wherein each X.sub.1 and X.sub.2 is --SO.sub.2 CH.sub.2 CH.sub.2 OCOCH.sub.3, --SO.sub.2 CH.sub.2 CH.sub.2 OSO.sub.3 H or --SO.sub.2 CH.dbd.CH.sub.2, provided that at least one of X.sub.1 and X.sub.2 is --SO.sub.2 CH.sub.2 CH.sub.2 OCOCH.sub.3, and at least one disazo dye of the formula (II) expressed in the form of a free acid, ##STR2## Wherein each Y.sub.1 and Y.sub.2 is --SO.sub.2 CH.sub.2 CH.sub.2 OSO.sub.3 H, --SO.sub.2 CH.dbd.CH.sub.2 or --SO.sub.2 CH.sub.2 CH.sub.2 OH, provided that one of Y.sub.1 and Y.sub.2 is --SO.sub.2 CH.sub.2 CH.sub.2 OSO.sub.3 H or --SO.sub.2 CH.dbd. CH.sub.2, is produced by diazotizing a mixture of 4-aminophenyl-.beta.-sulfatoethylsulfone and 4-aminophenyl-.beta.acetoxyethylsulfone in a weight ratio of 30 to 70: 70 to 30 with a nitrite, and coupling the resulting mixture of the diazonium salts with 1-amino-8-naphthol-3,6-disulfonic acid.