2-(PARA-SULFOPHENYL)AMINO-1,3,5-TRIAZINE DERIVATIVE AND THE SALT OF ALKALI METAL THEREOF, A PROCESS FOR THEIR PREPARATION AND THEIR USE AS AN AUXILIARY OF CATIONIC DYE

摘要

The invention provides 2-(para-sulfophenyl)amino-1,3,5-triazine derivative of formula (I) and the salt of alkali metal thereof, in which R1 is chloro or fluoro; R2 is α- or β-naphthyl amino group, or α- or β-naphthyloxy group. The invention further provides a process for the preparation of such compounds, their use as an auxiliary of cationic dye for dyeing and finishing animal protein fibre (including wool, rabbit hair, camel hair, and natural silk) and fabric as well as fibre or fabric comprising animal protein fibre mixture, and their using method.