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1. (WO2001005928) A DETERGENT COMPOSITION AND LAUNDRY WASHING METHOD

Pub. No.:    WO/2001/005928    International Application No.:    PCT/EP2000/005718
Publication Date: Fri Jan 26 00:59:59 CET 2001 International Filing Date: Thu Jun 22 01:59:59 CEST 2000
IPC: C11D 3/386
C11D 3/39
C11D 11/00
Applicants: JOHNSONDIVERSEY, INC.
Inventors: VAN KOUWEN, Eddy, Petrus, Anthonius
SCHEPERS, Frederik, Jan
VERHEUL, Rudolf, Cornelis
SMIT, Wilhelm, Ewald
Title: A DETERGENT COMPOSITION AND LAUNDRY WASHING METHOD
Abstract:
A chemical cleaning system for a multi-tank or a single-tank laundry washing machine, having at least two separate components for aqueous dissolution or dilution to respective use concentrations, a first component comprising a proteolytic enzyme, and a second component comprising an imidoperoxycarboxylic acid, particularly phthaloylaminoperoxycaproic acid (PAP), wherein the first component is introduced into a prewash zone or step, and the second component is introduced into a main wash zone or step. When using this system, it was found that effective cleaning could be obtained even at relatively low main wash temperatures of 45-55 °C. As a result, much less energy was needed and a considerable reduction of textile damage was observed as compared with cleaning systems of the prior art.