SILICON OXIDE POWDER AND PROCESS FOR THE PRODUCTION THEREOF, COSMETICS MADE BY USING THE SAME, MICELLE-RETAINING POWDER, AND PERFUME-RETAINING POWDER

摘要

The step of method preparation of non-squamous silicon oxide powder include dissolution, wherein silicate meets relationship: it is 0. that 0 SiO2/Y2O ＜ ＜ 2 (, wherein Y is alkali metal), which are dissolved in the concentration of cationic surfactant,1 to 5.0 M, pH are 11 or more, and condensation step wherein adjusts pH to 10.5 hereinafter, form micella limitation cationic surfactant and the silicate precipitates bar, and remove step, wherein cationic surfactant micella shape precipitating removal has shell by silicate. The powder is useful carrier for cosmetics, drug and fragrance.