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KMID : 0604519980240030051
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Journal of the Society of Cosmetic Scientists of Korea
1998 Volume.24 No. 3 p.51 ~ p.58
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STUDY OF SYNTHESIS, MATTER S PROPERTIES AND APPLICATION OF MICA/TIA_2/SIO_2PIGMENT IN COSMETICS AREA
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Ju Nam-Gung
Lee Dong-Kyu
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Abstract
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Generally pigment differs from dye stuff because it cannot be melted in water but also because it is stable physically and chemically. In this study you will discover the function, properties and effects of Micai-TiO_2-Si _2pigment as abase material pigment. But until now used Mica of the base material is about 7-l5{mu}{textrm}{m} with an average diameters of 15{mu}{textrm}{m}. A new characteristic superficial pigment was obtained from covering the TiO_2 and SiO_2 with the adsorption result of isoelectric point of a Mica flake, TiO_2 and SiO_2In the composition reaction study of adsorption was done as well as the physical characteristics of the superficial texture of the obtained material. L,a,b of color change as oil was absorbed, optical nature and change of reflection according to direct and diffused reflection. In the composition of Mica slurry the best result obtained was in a solution with pH 2.0 to 2.3. Following this result, we can come to the idea that electrical attraction was done during the change of electrical charge of the Mica and TiO_2 deposit. Also this pigment shows a big scale between the direct reflection and diffused reflection light. Using this characteristic in cosmetic, it was obtained a natural but a contrast between light and shadow making possible a sculptured make-up. Color change due to oil adsorption was insignificant which improved the last of make up.
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KEYWORD
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Makeup, Long-lasting, optical degradation, Mica-TiO_2-Silica adsorption
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