One-bath dyeing of a polyester/cotton blend with reactive disperse dyes from 2-hydroxypyrid-6-one derivatives |
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| Authors: | J J Lee N K Han W J Lee J H Choi J P Kim |
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| Affiliation: | School of Materials Science and Engineering, College of Engineering, Seoul National University, Seoul 151-742, South Korea.;;School of Materials Science and Engineering, College of Engineering, Seoul National University, Seoul 151-742, South Korea.;;Department of Colour Chemistry, University of Leeds, Leeds LS2 9JT, UK;Department of Dyeing and Finishing, College of Engineering, Kyungpook National University, Taegu 702-701, South Korea;School of Materials Science and Engineering, College of Engineering, Seoul National University, Seoul 151-742, South Korea.; |
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| Abstract: | A series of temporarily solubilised reactive disperse dyes based on 1-substituted derivatives of 2-hydroxypyrid-6-one were applied to a 65;35 polyester/cotton blend using a one-bath dyeing method without dispersing agent. The dyeing behaviour of these dyes on polyester and cotton fabrics, and polyester/cotton blend fabric, were studied. The colour yields of the dyes on the polyester/cotton blend were found to be highly dependent on the initial pH, optimum results being obtained at pH 5. Good levelling and good to excellent fastness properties were obtained on the blend, with the exception of lightfastness, which was moderate. |
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