Patent ID: 6530386
Filing Date: 2003-03-11
Classification: B08B,C11D

Abstract:
A process for cleaning returnable bottles or containers designed to hold foods, the process comprising the steps of:a. conveying the bottles or containers through several zones in a bottle washing machine, the several zones comprising a zone for pre-rinsing, a treatment zone following the pre-rinsing zone for treatment with an aqueous cleaning solution at a pH of about 8 to about 12 and a temperature of about 30Â° to about 70Â° C. and a zone following the treatment zone for rinsing with water; and b. washing the bottles or containers in the treatment zone with said aqueous cleaning solution comprising: i. at least one enzyme chosen from the group consisting of proteases, amylases, cellulases, lipases, and oxidoreductases: ii. at least one polyol; and iii. at least one non-ionic surfactant comprising an addition product of a 12-18 carbon alcohol and ethylene oxide or propylene oxide wherein the addition product is end-capped by an alkyl group.