Redeposition or backstain inhibition during stonewashing process

Abstract

The present invention relates to the inhibition of backstaining or redeposition during the stonewashing process by applying a lipolytic enzyme, preferably cutinase, thereby avoiding that the blue color redeposits on the fabric or garment.

1 . A method for reducing the backstaining of a fabric or textile, comprising contacting the fabric or textile with a composition comprising an effective amount of a lipolytic enzyme (EC 3.1.1).  
     
     
         2 . The method of  claim 1 , wherein the lipolytic enzyme is a biopolyester hydrolytic enzyme.  
     
     
         3 . The method of  claim 2 , wherein the lipolytic enzyme is a cutinase (EC 3.1.1.74).  
     
     
         4 . The method of  claim 3 , wherein the cutinase is a  Humicola insolens  cutinase.  
     
     
         5 . The method of  claim 1 , wherein the fabric or textile is made of hydrophobic fibers.  
     
     
         6 . The method of  claim 1 , wherein the fabric or textile is polyester or a polyester/cotton blend.  
     
     
         7 . The method of  claim 6 , wherein the fabric or textile is polyester or polyester/cotton parts of indigo dyed denim.  
     
     
         8 . The method of  claim 1 , wherein the amount of enzyme is 1-100 mg of enzyme protein per I of composition.  
     
     
         9 . The method of  claim 1 , wherein the pH is in the range of 4.5-7.5 and the temperature is in the range of 40-60° C.  
     
     
         10 . The method of  claim 1  for simultaneous reducing the backstaining and formation of localized color variation, wherein the composition further contains a cellulase and/or pumice.  
     
     
         11 . A stonewashing composition comprising a lipolytic enzyme and a cellulase.  
     
     
         12 . The composition of  claim 11 , further comprising a surfactant.  
     
     
         13 . The composition of  claim 11 , wherein the lipolytic enzyme is a biopolyester hydrolytic enzyme.  
     
     
         14 . The composition of  claim 13 , wherein the lipolytic enzyme is a cutinase (EC 3.1.1.74).