LIQUID CRYSTAL MAKE-UP REMOVER 35 1000 500 ---- 100 • 50 E o• 10 0.1 LC system "I 2 Phase system I I I I I . 0 0.2 0.4 0.6 0.8 1.0 1.2 Weight ratio (Oily dirt / LC-remover) Figure 14. Droplet diameter of emulsions formed in rinsing process of liquid crystal remover with addition of various amounts of oil. thermore, the phase transition induced by water evaporation during the rubbing en- hances the efficiency of the dissolution of impurities because of the abolishment of the liquid crystal structure. In the rinsing-off process, fine emulsion droplets are formed by passing through the liquid crystalline phase, and the oil component of the LC remover, dissolving the impurities, can be easily removed from the skin. It is concluded that the LC remover has a strong cleansing ability, yet is mild on the skin without causing significant damage. ACKNOWLEDGMENT The authors deeply thank Mr. Nakagawa, managing director of Kao Corporation, for giving us the opportunity for this study and allowing us to publish this paper.

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