3, A chelating agent which forms an easily water-soluble metal chelated compound such as nitrilotriacetate (NTA) or ethylene diamine tetraacetate (EDTA) is incorporated in a detergent composition.
在粉中掺入螯合剂,例如次氮基三乙酸酯(NTA)者是乙二胺四乙酸酯(EDTA),这些螯合剂易于溶性的金属螯合物。