Reactive Dyes Containing Divalent Sulfur in Non-Reactive Side Chain at Trizine Nucleus

摘要

The present invention refers to dyestuffs of the formula (I) wherein R¹, R² are independently H, optionally substituted alkyl or optionally substituted aryl, R³ is optionally substituted alkyl or optionally substituted aryl, an organic acyl group (i.e. acetyl, propionyl, benzoyl etc.) or an organic thioacyl group (i.e. 10 thioacetyl, thiopropionyl, thiobenzoyl etc.), all of which may or may not bear a reactive group able to form a dye-fibre bond, R⁴ is any coloured organic group, which may or may not bear a reactive group able to form a dye-fibre bond, L is any carbon containing linking group that is aliphatic, aromatic, or a combined alkyl-aryl group such as benzyl or phenethyl, X is halogen or tertiary ammonium or an optionally substitute aryl amine, processes for the preparation of said dyestuffs and their use for dyeing and printing hydroxy- and/or carboxamido-containing fiber materials.