The development and industrial production of synthetic effect pigments began together with the development of synthetic resins in the 1960s. The first pearlescent pigment was basic lead carbonate. Shortly thereafter, the first patents based on mica followed. Metal oxides such as titanium dioxide were applied to mica as a thin layer. This results in interfaces that produce interference when exposed to light and thus imitate the "natural pearlescent shine". Today's effect pigments have very different colour spaces: from silver and yellow/gold through red and blue to black. This is achieved with different metal oxides and technologies. One of ...