PROCESS FOR THE PREPARATION OF A COMPOUND DISAZO, APPLICATION OF THAT COMPOUND AND PROCESS FOR DYING FIBER MATERIAL CONTAINING HYDROXY AND / OR CARBONAMIDE GROUPS

摘要

There are described disazo compounds which conform to the general formula (1) hereinafter shown and defined and which are used as fibre-reactive dyes for dyeing hydroxyl- and/or carboxamido-containing fibre material, such as cellulose fibre materials and synthetic and natural polyamide fibre materials, such as wool. Applied by the application and fixing methods customary for fibre-reactive dyes they produce strong and fast brown dyeings and prints. IMAGE where R is hydrogen or sulpho, R1 is hydroxyl, methoxy or ethoxy, M is hydrogen or an alkali metal, and the free sulpho group in the naphthylene radical is in position 6 or 7.