| abstract |
A phthalocyanine compound which is represented by a free acid of the following formula, <IMAGE> wherein Pc is a metal-free or metal-containing phthalocyanine residue, W is a group of <IMAGE> in which R' and R'' are independently a hydrogen atom or a methyl or ethyl group, and n is an integer of from 2 to 6, R is an unsubstituted or substituted lower alkyl group, A is an unsubstituted or substituted phenylene or naphthylene group, Y is a group of -SO2CH=CH2 or -SO2CH2CH2Z in which Z is a group capable of being split by the action of an alkali, a is a positive number of from 1 to 3, and b and c are independently a positive number of from 0 to 3, provided that a, b and c statisfy 0<a+b+c</=4, and which is useful for dyeing or printing fiber materials, particularly cellulose fiber materials, to give a dyed or printed product of a brilliant turquoise blue color excellent in various fastness, particularly light fastness and wet fastness. |