<p>The present invention provides a cleaning method in which the feed water is consecutively contacted with an appropriate combination of cation exchange resin material and anion exchange resin material. As a result, wash amplified water (WAW) is produced having a pH value that is more than 0.5 pH unit different from the feed water and a water hardness of less than 5° FH. In this method, the resins are regenerated with the use of an electric field. In step (ii) of the cleaning method of the invention, the wash-amplified-water is mixed with a detergent product that is substantially builder-free and contains at least 10% wt of surfactant. This cleaning method is preferably a fabric washing or dishwashing method.</p>
申请公布号
WO2005106100(A1)
申请公布日期
2005.11.10
申请号
WO2005EP03999
申请日期
2005.04.12
申请人
UNILEVER N.V.;UNILEVER PLC;HINDUSTAN LEVER LIMITED;VAN, KRALINGEN, CORNELIS, G.;REINHOUD, HANK, R.;RIKSEN, HARM, J.;VERHAGEN, JOHANNES, J.
发明人
VAN, KRALINGEN, CORNELIS, G.;REINHOUD, HANK, R.;RIKSEN, HARM, J.;VERHAGEN, JOHANNES, J.