COLOUR EFFECT PIGMENTS AND METHOD OF FORMING THE SAME

摘要

A metallic effect pigment including a metallic, corrosion resistant reflective core of reflectivity from 40 % to 80 %; having deposited thereupon at least one dielectric coating layer formed of at least one metal oxide, the metal oxide layer having been formed by deposition on the core by hydrolysis of a hydrolyzable metal salt in a strongly acidic aqueous medium, and thereafter full transformation into the oxide by calcination.