Abstract
The detergency building action with sodium alkylbenzenesulfonate (LAS) and the physico-chemical properties of the aqueous solutions of binary systems consisting of sodium tripolyphosphate (STPP) and ether polycarboxylate type organic builders were studied, and their combined properties were discussed. The detergency were tested on naturally soiled cotton patches and the detergency powers were evaluated by Scheffe's method in a detergent system formulating LAS. Measurements were made on calcium ion sequestration capacities and dispersing capacities for manganese dioxide in the aqueous binary builder solution. From the results summarized in Fig.-1Fig.-5, it is evident that the binary components of STPP with tested organic builders except TMETA show the synergistic property in the MnO2 dispersion power, but don't show both in Ca chelating and detergency building properties. The mixture of STPP and TMETA is as much effective as STPP in detergency building action and MnO2 dispersing power at any ratios, althouth the chelating power of mixture increased in proportion to the amount of STPP.
