Reactive disazo dyestuffs containing triazines

摘要

Reactive azo dyestuffs which, in the form of free acid, are represented by the following formula: <IMAGE> +TR <IMAGE> (wherein R is hydrogen or methyl) are characterized by exhibiting the following properties: high fixation efficiency, excellent wash-off, high build-up and excellent wet fastness. Such dyestuffs give dyeings excellent in light fastness, chlorine fastness and color yield.