Purpose and Scope

In the dyeing of acrylic fibers with basic dyes, the classic parameters—e.g., the time of half-dyeing—of individual dyes do not give a true indication of their dyeing behavior in admixture with other basic dyes.

Since basic dyes show virtually no migration in acrylic fibers under normal dyeing conditions, compatibility is of major importance in selecting dye combinations with optimum level dyeing behavior (see 10.2).

This test method is intended to determine the behavior of a dye in relation to its compatibility when applied to acrylics (see 10.3, 10.4 and 10.5).