Triphendioxazine reactive dyestuffs

摘要

The present invention provides new triphendioxazine dyestuffs of the formula <IMAGE> (1) wherein W represents an optionally substituted sulphonamide group Z represents a reactive group or hydrogen and the other substituents are defined as in the text of the application. The new reactive dyes are highly suitable for dyeing and/or printing hydroxyl-containing and/or amide-containing fibre materials. The dyestuffs where Z is H are intermediates in the preparation of the reactive dyestuffs.