Dispersion dye mixt. for dyeing polyester material yellow to black - comprising combinations of yellow, red and blue eutectic dispersion dye mixts.

摘要

Dispersion dyestuff prepns. for dyeing and printing of polyester materials in any desired shade between yellow and black, comprise two or more eutectic dispersion mixed dyes, whereby these eutectic dispersion mixed dyes in two to three different combinations must together give the same colour shade at 100 deg C and 130 deg C. USE/ADVANTAGE - The dyestuff mixts. can be used to dye polyester materials in any chosen shade between yellow and black, and give level dyeings with good fastness properties, a high deg. of bath exhaustion, and good maintenance of desired shade at dyeing temps. between 80 and 130 deg. C. Pref. the yellow eutectic dispersion dye A is a mixt. consisting of 18-38 wt% of the dye 3-methoxybenzanthrone of formula (Ia) or a dye of formula (Ib).