Imperial Chemical Industries Limited

Stewart R Korn

Brian R Fishwick

Violet Boyd

Brian Glover

Susan M Bostock

Process for the continuous coloration of aromatic polyester or cellulose triacetate textile materials and of unions of aromatic polyester with cellulose, by applying to the textile material for the polyester or triacetate a disperse azo dyestuff containing a single carboxylic acid ester group and at least two cyano groups, and for the cellulose component of a union a reactive or other dyestuff, followed by an alkaline rinse of the colored textile material.

Coloration process

Process for the continuous coloration of aromatic polyester or cellulose triacetate textile materials and of unions of aromatic polyester with cellulose, by applying to the textile material for the polyester or triacetate a disperse azo dyestuff containing a single carboxylic acid ester group and at least one group selected from primary, secondary or tertiary sulphamoyl or carbamoyl; imido (especially phthalimido), hydroxy, acyloxy, sulphone (especially alkylsulphonyl) and lactone groups, and for the cellulose component of a union a reactive or other dyestuff, followed by an alkaline rinse of the colored textile material.

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Manchester, United Kingdom

Stewart R Korn