Improving the Compatibility of Disperse Dye Mixtures Using Levelling Agent – Assessment Through Colour Coordinates

The addition of a non-ionic levelling agent to a dyebath containing a mixture of three disperse dyes in equal proportions and having similar hues (all in the red-yellow sector of colour space) significantly improve their compatibility, especially at higher applied depths of 3.0 % and 4.5 %. The dyed samples were measured for the differences in their colour coordinates with respect to the undyed substrate on a spectrophotometer attached to an IBM personal computer