Add time:07/12/2019         Source:sciencedirect.com

The effect on wash fastness of aftertreating the dyeings of six C.I. Solubilised Sulphur dyes on cotton with a proprietary, reactive, cationic fixing agent was examined. The fixing agent improved wash fastness when applied to the oxidised dyeings and also when applied to the leuco derivative of the leuco derivative of the dye in place of the oxidation stage in the dyeing process. The possible mechanisms in operation are discussed.

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