Source: TiO 2 is, with around 60%, the most important pigment in the production of lacquers, paints and printing inks. It is the basis of white and even coloured tones. It is necessary because colour pigments, only become visible if the unabsorbed spectrum is reflected, for example by TiO 2 . This is also a large cost block. It has been calculated that roughly 25-40% of the production costs, depending on the application, is due to TiO 2 . ...