申请人:Kao Corporation
公开号:EP0999264A1
公开(公告)日:2000-05-10
A powdery detergent composition having a high detergency and an excellent storage stability (caking resistance), and comprising (a) a chelating agent composed of a compound having an average degree of neutralization in a molecule of 20 to 70%, a molecular weight of 600 or less, the number of carboxyl groups contained in one molecule of 3 to 5, and a constant of a chelating stability with Ca2+ of 6 to 13, (b) an alkali agent composed of a compound a 0.1% by weight aqueous solution or dispersion of wich has the maximum pH of 10 or more at 20°C, at least 5 ml of a 0.1 N HCl aqueous solution being required to adjust 1 liter of the aqueous solution or the dispersion to pH 9, and (c) a surfactant at specific ratios, respectively.
一种粉状洗涤剂组合物,具有很高的去污力和极好的贮存稳定性(抗结块性),它包括(a)一种螯合剂,由一种化合物组成,该化合物分子中的平均中和度为 20-70%,分子量为 600 或更小,一个分子中所含的羧基数为 3-5,与 Ca2+ 的螯合稳定性常数为 6-13;(b)一种碱剂,由一种化合物组成,该化合物的 0.1%(重量)的化合物组成,其水溶液或分散液在20℃时的最大pH值为10或以上,至少需要5毫升0.1N盐酸水溶液才能将1升水溶液或分散液调节到pH值为9,以及(c)分别按特定比例配制的表面活性剂。