AATCC Test Method 140, Dye and Pigment Migration in a Pad-Dry Process: Evaluation of

AATCC Test Method 141-2004
Compatibility of Basic Dyes for Acrylic Fibers

Developed in 1974 by AATCC Committee RA87

1. Purpose and Scope

1.1 In the dyeing of acrylic fibers with basic dyes, the classic parameter—e.g., the time of the half-dyeing—of individual dyes do not give a true indication of their dyeing behavior in admixture with other basic dyes.
1.1.1 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.
1.2 This test method is intended to determine the behavior of a dye in relation to its compatibility when applied to acrylics.

The above information is only a summary of the AATCC Test Method.

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