PROCESS FOR THE PREPARATION OF DISPERSE DYES HAVING GOOD PRINTING ERTIES FOR TRANSFER PRINTING

摘要

PROCESS FOR THE PREPARATION OF DISPERSE DYES HAVING GOOD PRINTING PROPERTIES FOR TRANSFER PRINTING Disperse dyestuffs which are sufficiently capable of subliming for serving in the transfer print process but which yield printing inks of a too high viscosity can be finished to fit the requirements for printing inks for transfer printing by treating said dyestuffs in a liquid medium at a temperature between 50 and 180.degree.C. Thus printing inks of sufficiently low and constant viscosity can be obtained.