Patent ID: 8449626
Filing Date: 2013-05-28
Classification: C11D

Abstract:
1. A method of cleaning a white load in a laundry machine, the method consisting of: subjecting the white load to four washing steps consisting of; a first washing step with a detergent comprising a surfactant and an enzyme, wherein the first washing step is substantially free of a bleach additive; a second washing step, subsequent to the first washing step, with a bleach additive wherein the bleach additive comprises a halogen bleach; a third washing step, subsequent to the second washing step, with water alone; and a fourth washing step, subsequent to the third washing step, with a whitening additive wherein the whitening additive comprises a bleach scavenger and a hueing dye wherein the bleach scavenger is sodium thiosulfate, and wherein the whitening additive is a separate product from the detergent and the bleach additive.