PHTHALOCYANINE REACTIVE DYE, SYNTHESIS AND APPLICATION TO DYEING MATERIAL CONTAINING HYDROXYL GROUP AND/OR NITROGEN

摘要

The present invention relates to new phthalocyanine reactive dyestuffs which, in the form of the free acid, correspond to the formula I IMAGE I wherein Pc, R1, R2, R3, R4, R5, R6, a, b and c have the meaning given in the text of the Application. The phthalocyanine radical Pc can be metal-free, but preferably contains a metal. The invention furthermore relates to processes for the preparation of the dyestuffs of the formula I and to the use of these compounds for dyeing or printing materials containing hydroxyl groups and/or nitrogen.