Patent ID: 6277153
Filing Date: 2001-08-21
Classification: C11D

Abstract:
A method of laundrywashing in a multi-tank or singletank laundry washing machine, comprising the steps of:(i) formulating at least two separate components of a chemical cleaning system for aqueous dissolution or dilution to respective use concentrations, a first component comprising a proteolytic enzyme, and a second component comprising an imidoperoxycarboxylic acid having the formula ##STR3##wherein X is H, a halogen or a carboxyl group in any position on the aromatic ring; R is a straight or branched chain lower alkylene having 1-4 carbon atoms; and n is an integer in the range from 1-12;(iii) introducing the first component into a prewash zone or step, to clean dirty laundry wherein the temperature applied in the prewash zone or step into which the first component is introduced, is in the range of 30-40.degree. C.;(iv) introducing the second component into a main wash zone or step, to effectively complete the cleaning of the laundry wherein the temperature applied in the main wash zones or steps is in the range of 30-70.degree. C.