Practical Significance, Theory and Determination of Compatibility of Dyes on Synthetic‐polymer Fibres

Abstract
The compatibility of dyes is particularly important in regard to the time, reproducibility and levelness of dyeing. For basic dyes on acrylic fibres and anionic dyes on nylon, a characteristic of the dye—the compatibility value K— is valuable in determining whether it can be used in the same bath as others. Dyes having the same K‐value are compatible under most dyeing conditions. For disperse dyes, K‐values do not exist. In selecting such dyes for use together, other properties of the dyes and the concentrations to be used in the particular combination must be considered.

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