DETERGENT COMPOSITION AND METHOD FOR ITS USE

摘要

: Fabrics can be washed with a wash liquor to which has been added a detergent active material, a water-soluble carbonate material such as sodium carbonate and a carboxylic polymer such as hydrolysed polymaleic anhydride or a hydrolysed copolymer of maleic anhydride, ethyl acrylate and vinyl acetate. The polymer reduces the level of inorganic deposition on the fabrics provided that the initial calcium/carbonate saturation ratio in the liquor is below about 50. Thus the method is particularly suitable for use with water having a hardness below 20.degree. FH, at product dosages below 5 g/1, and/or at temperatures below 60.degree.C. The saturation ratio may also be reduced by including a calcium sequestrant such as NTA in the composition.