Modification of printed and dyed materials

Details Modification of printed and dyed materials Modification of printed and dyed materials

D - Textiles, Paper

06

L

D06L 3/11 (2006.01) C11D 3/386 (2006.01) C11D 11/00 (2006.01) D06P 1/16 (2006.01) D06P 1/18 (2006.01) D06P 5/02 (2006.01) D06P 3/54 (2006.01)

Patent

CA 2465250

AbstractThe present invention relates to methods and compositions for removing excess dye from dyed and/or printed materials, such as, textile materials dyed with disperse dyes, by treating a dyed or printed material with an esterase. The improvements resulting form the present invention include, for example, improvements in the washfastness, the wetfastness, the crockfastness, sublimation, and/or the quality of the color, such as, brightness,of dyed and/or printed materials. The present invention also relates to methods for printing or dyeing a material by dyeing or printing the material with a combination of a dye that is affected by esterase treatment and a dye that is not affected by esterase treatment, and after dyeing or printing the material, discharging residual dye by treating the material with an esterase.

La présente invention concerne des procédés et des compositions qui permettent d'éliminer l'excès de colorant sur des matières teintes et/ou imprimées, telles que des matières textiles teintes à l'aide de colorants dispersés, en traitant la matière teinte ou imprimée avec une estérase. L'invention permet d'apporter des améliorations dans la solidité au lavage, la solidité au mouillé, la solidité au frottement, la sublimation, et/ou la qualité de la couleur, par exemple la luminosité, des matières teintes et/ou imprimées. L'invention concerne également des procédés d'impression et de teinture de matières selon lesquels on imprime ou on teint la matière à l'aide d'une combinaison d'un colorant qui est modifié par un traitement à l'estérase et d'un colorant qui n'est pas modifié par un traitement à l'estérase et, après la teinture ou l'impression de la matière, on élimine le colorant résiduel en traitant la matière avec une estérase.

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