抄録
Correlation between foaming ability and detergency of the solution composed of saponin and surfactant has been studied. Three kinds of saponin were investigated. Surface tension and viscosity of the solution have also been measured.
Experimental results are summarized follows :
(1) Three kinds of saponin have apparently different values in surface tension, viscosity and especially in foaming ability.
(2) The aqueous solution of saponin has slightly higher detergency than water at 40°C.
(3) The saponin-surfactant mixed solution decreases detergent quality as saponin concentration increases. In this respect, saponin is not suitable for detergent component.
(4) Addition of a trace of polar oleic acid to the nonionic surfactant improves detergency and foaming ability, whereas addition of non-polar liquid paraffin is not effective.
