Optically Variable Pigments from Dielectric Layers and Their Applications

摘要

Over the last decade,several new pigments made from optical layers of metals and dielectric layers,which fit the general term of optically variable pigments (OVPs),have been commercialized.These pigments generate high chroma and color travel,dramatic changes in color at different angles of illu-mination,and viewing to produce fascinating color effects in coatings,plastics ,and cosmetics.