Washing Experiments of the Soiled Models Attached on an Artificial Skin by Microbubbles

Abstract

Washing technology using fine-bubbles was one of the technologies that were spreading to many fields. In this paper, as a model experiment of washing face, a washing experiment of oily stains on artificial skin was performed by using a washing solution containing microbubbles in flowing water, and applied shear to the object. The experimental results showed that the effect of suspended microbubble was enhanced with increasing washing time when nonionic surfactant solution was used, that the effect of microbubble suspension was enhanced at three surfactant concentrations above and below the critical micelle concentration, and that the effect of suspended microbubble was not enhanced under relatively high temperature conditions.

graphical abstract