| 摘要 |
A method for reforming the surface of inorganic particles is provided to increase the serum absorption capability when the inorganic particles are applied to cosmetics by enlarging the surface area through tens of nanometers of etching, increasing the absorption using a coating material, and improving the whiteness, thereby preventing the collapse of make-up and improving darkness and dullness of the make-up. A method for improving oil absorption, whiteness, or water repellency by reforming the surface of inorganic particles comprises the steps of: (a) etching the surface of the inorganic particles using an acid to form an irregular surface layer; (b) treating the etched inorganic particles with high energy in accordance with the energy requirement; (c) washing, filtering, drying and crushing the high energy treated inorganic particles; and (d) coating the inorganic particles obtained from the step(c) with a surface treating agent such as dimethicone, methicone, triethoxycaprylylsilane, acrylates/tridecyl acrylate/triethoxysilylpropyl methacrylate/dimethicone methacrylate copolymer and triethoxysilylethyl polydimethyl siloxy ethylhexyl dimethicone. |
