Patent ID: 7682403

Claim:
A method for treating laundry, the method comprising: (a) washing the laundry with a detergent use solution at an alkaline pH in an industrial laundry washing machine for removal of soil from the laundry; and thereafter draining at least a portion of the detergent use solution from the laundry washing machine; and thereafter (b) applying a laundry treatment composition comprising a bleaching/antimicrobial agent selected from the group consisting of a halogen bleach, an oxygen bleach, and mixtures thereof, to the laundry in an industrial laundry washing machine at a pH from about 2 to about 4 for about 3 minutes to about 10 minutes, and thereafter at a pH from about 8 to about 11 for about 3 minutes to about 10 minutes; wherein a pH adjusting agent is added to increase the pH; and (c) draining the laundry treatment composition from the laundry.