Colorful titanium oxide pigments without transition metals

Overview of Technology

Colorful TiO2 Particle

Comparison with Conventional Technology

Transition metal compounds are known to exhibit a wide variety of colors. Until now, it has been possible to color white titanium oxide by doping with transition metal ions, but it is difficult to avoid biotoxicity derived from transition metals.

Features and Uniqueness
  • In the present invention, titanium oxide inorganic pigments that do not contain transition metals and have various colors such as white, yellow, red, gray, green, purple, black, and skin color have been realized.
Practical Application

New applications of titanium oxide pigments are expected in the cosmetics field, where biotoxicity is an issue.



Institute of Multidisciplinary Research for Advanced Materials

Yin Shu, Professor