Abstract: The reactive dye printing experiment was carried out on cotton fabrics with resist salt S auxiliaries, so as to study the effect of the dosage of resist s alt S on the dyeing strength and color vividness of different kinds and dosage of reactive dyes. The results indicated that when the dosage of reactive azodyes is less, resist salt S should add to the color paste to increase dyeing strength and color vividness, playing a role in colored light protection.

Key words: resist salt S; cotton fabric; reactive dye; printing