Color modification of sized fabric

Abstract

Described are methods relating to modifying the color of sized fabrics using a perhydrolase enzyme system, thereby elimination the need for prior desizing.

1 . A method for modifying the color of a dyed, sized textile, comprising, contacting the dyed, sized textile with a perhydrolase enzyme system to modify the color of the textile, wherein the contacting is performed without first desizing the textile. 
     
     
         2 . The method of  claim 1 , wherein the contacting is performed in the absence of desizing the textile. 
     
     
         3 . The method of  claim 1 , wherein the contacting is performed prior to desizing the textile. 
     
     
         4 . The method of  claim 1 , wherein the perhydrolase enzyme system comprises a perhydrolase enzyme and an ester substrate, wherein the perhydrolase enzyme catalyzes perhydrolysis of the ester substrate with a perhydrolysis:hydrolysis ratio equal to or greater than 1. 
     
     
         5 . The method of  claim 1 , wherein the perhydrolase enzyme system comprises a  Mycobacterium  perhydrolase or a variant, thereof. 
     
     
         6 . The method of  claim 5 , wherein the perhydrolase enzyme is a variant of  Mycobacterium smegmatis  perhydrolase comprising the amino acid substitution S54V. 
     
     
         7 . The method of any of the  claim 4 , wherein the ester substrate is PGDA or triacetin. 
     
     
         8 . The method of  claim 1 , wherein the size comprises starch, a starch-like material, or PVA. 
     
     
         9 . The method of  claim 1 , wherein the textile is denim. 
     
     
         10 . The method of  claim 1 , wherein the textile comprises cotton. 
     
     
         11 . The method of  claim 1 , wherein the dye is a sulphur dye. 
     
     
         12 . A textile produced by the method of  claim 1 .