Process for the pad-dyeing of textile webs of cellulose fibers
AssigneeHoechst Aktiengesellschaft
InventorsHans J. Ballmann, Hans-Ulrich von der Eltz
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Abstract
A process for the pad-dyeing of textile webs, especially tubular knitted fabrics, which consist totally or partially of cellulose fibers, wherein the textile material is padded on a padder with an aqueous liquor of reactive dyestuffs, alkalis for their fixation and wetting agents, said liquor additionally containing polymers or copolymers of acrylic acid amide in aqueous solution, in order to avoid difficulties with regard to an even dye penetration and uniform squeezed edges, and the dyestuffs are fixed according to the cold-dwell dyeing process.
Claims9
In a process for the pad-dyeing of a textile web containing or consisting of cellulose fibers with one or more reactive dyestuffs according to a cold-dwell dyeing process in which the textile web is padded on the padder with an aqueous liquor at room temperature, the liquor containing one or more reactive dyestuffs, alkali for fixing same and one or more wetting agents, the improvement which comprises incorporating in said liquor a polymeric component selected from the group consisting of homopolymers and copolymers of acrylic acid amide and mixtures of the foregoing, said polymeric component being incorporated in an amount of from 0.4 to 5 g/l in the form of an aqueous solution.
Dependencies are inferred from the claim text.