Patent ID: 6399561
Filing Date: 2002-06-04
Classification: C11D,D06L,D06P

Abstract:
A method for bleaching a dye in solution comprising contacting, in an aqueous solution, the dye with a laccase and an enhancing agent of the following formula: in which A is: and B is H, or C1-C4 unbranched alkyl wherein said alkyl may contain ether groups, and one, two, three, or four of R2, R3, R4, R5 and R6 are H, NH2, COOH, SO3H, CN, CH3, COCH3, NO2, OCH3, NR7R8, COOR9, or NOHâ€”COâ€”R10, and at least one of R2, R3, R4, R5 and R6 is NH2, COOH, SO3H, CN, COOCH3, NO2, OCH3, NR7R8, COOR9, or NOHâ€”COâ€”R10, and wherein R7, R8, R9 and R10 are C1-C2 unbranched alkyl.