抄録
Titanium dioxide coated mica (TiO2-coated mica) onto which colored pigments such as iron oxide, prussian blue, chromium oxide or carmine are coated, is called colored TiO2-coated mica.
It may cause stability probrems in cosmetics.
We have developed a colored nacreous pigment having bright color tone and pearly gloss having excellent stability and safety. In order to obtain such colored nacreous pigment, a part of titanium dioxide layer on mica was reduced to black titanium oxide, and the reduced TiO2-coated mica was recoated with titanium dioxide layer. The products obtained were the colored nacreous pigment, which was colored by interference color of titanium dioxide, and had extremely improved color tone, good consistency of color appearance and interference color. Various colors were abailable by adjusting the thickness of the titanium dioxide layer recoated on the reduced TiO2-coated mica. This colored nacreous pigment does not contain any colored pigments.
