发明申请
- 专利标题： Cleaning method
- 专利标题（中）： 清洗方法
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申请号： US11120734申请日： 2005-05-03
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公开(公告)号： US20060054193A1公开(公告)日： 2006-03-16
- 发明人: Cornelis Van Kralingen , Hank Reinhoudt , Harm Riksen , Johannes Verhagen
- 申请人： Cornelis Van Kralingen , Hank Reinhoudt , Harm Riksen , Johannes Verhagen
- 专利权人： Unilever Home & Personal Care USA, Division of Conopco, Inc.
- 当前专利权人： Unilever Home & Personal Care USA, Division of Conopco, Inc.
- 优先权： EP04076353.4 20040505
- 主分类号： B08B7/00
- IPC分类号： B08B7/00
摘要：
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.
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