日本化粧品技術者会誌
Online ISSN : 1884-4146
Print ISSN : 0387-5253
粉体の光学的研究とシワ隠し効果
中村 直生高須 賀豊高塚 勇
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1987 年 21 巻 2 号 p. 119-126

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To develop a novel makeup which is effective in making wrinkles less visible, optical properties of the makeup compornents and their mixtures were systematically studied.
It was discovered that within a specific composition range, it was possible to produce a makeup more effective in making wrinkles much less visible than possible with other mixtures. The composition of this “SOFT FOCUS MIXTURE” was found to be strongly dependent on the optical properties as well as the ratio of the powder to the oil. Two major factors found to contribute to the reduction of wrinkle visibility are: (a) Optical blurring of the outlines of wrinkles, and (b) Reduction in the differerence of lightnesses due to diffuse reflection. The first is strongly dependent on the concentration of the oil phase while the second is affected by the gloss of the powder. By optimizing these two factors, effective makeup have been prepared to make wrinkles less apparent.

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