Soochow University

Xiaoping Bi

Jiajie Long

A photocatalytic method of colored discharge printing for producing colorized patterns on textiles includes over dyeing textiles with illuminant dyes and ground shade dyes respectively, manufacturing patterned printing plates with hollow-out decorative patterns, applying a photocatalyst on the over-dyed textiles through the hollow-outs, using a photocatalytic method of colored discharge printing to produce localized discoloration of the ground shade while leaving the illuminant dyes on the textile which produces an effect of colorized patterns on the textiles. The method has the characteristics of being a simple process with a simple apparatus and has short processing, easy control and wide adaptability. The method eliminates the needs for printing pastes and expensive printing apparatus used in the complicated process in a conventional printing method.

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Suzhou, China

Xiaoping Bi