Development of New Style"Whipped"Bar Soap.

概要

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Bar soap based on fatty acid salt has been used preferably for body wash, because it produces creamy lather and leaves skin clean. However the tight skin feeling after wash is not preferred, so consumers prefer the liquid body wash based on mild synthetic detergent. Mild combo-bars are composed of soap and synthetic detergent. Some mild combo-bars in abroad tend to get mushy after repeated use in humid place like Japanese bath. Therefore the combo-bars have not become popular in Japan. The bar soap that leaves skin clean, has mildness and does not get mushy is the "ideal" soap. In this study, we have devised new aeration process of new style "whipped" combo-bar that consists many air bubbles densely. The mushiness of "whipped" soap was evaluated by measuring the water penetration depth into the soap. We have found out that water penetration was disturbed by air bubbles. By trapping the air bubbles in all parts of the soap, we have obtained the unique bar soap that does not get mushy.
日本化粧品技術者会の論文