The development and manufacturing of optically variable pigments have expanded beyond traditional optically variable pigments to include a range of new optical color-changing pigment products such as high chroma optically variable pigments, same color different spectra optically variable pigments, eco-friendly optically variable pigments, and all medium (transparent) optically variable pigments. Here is a brief introduction to the principles of three new types of optically variable pigments:

High Chroma Optically Variable Pigments

High chroma optically variable pigments are a new type of optically variable pigment with a large color gamut, bright colors, and strong coverage. Its principle is to compress the spectral reflection peak to the maximum extent by constructing a multilayer metal medium thin film, which gives it excellent color saturation and a special metal shimmer.

High Transparency Optically Variable Pigments

This type of optically variable pigment achieves its unique effect by combining multiple layers of all medium (transparent) nano-thin film materials with different refractive indices. The materials used in the manufacturing process do not contain heavy metals, and the substrates used are transparent materials, making it widely applicable to different colored substrates. High transparency optically variable pigments are widely used in the cosmetics industry.

3D Dynamic Optically Variable Pigments

The color-changing effect of traditional optically variable pigments is often singular, and there is no obvious difference in display effect with changes in the viewing angle. 3D dynamic optically variable pigments use a new type of magnetic material as the substrate and incorporate it into the structure of the optically variable pigment using nanotechnology, resulting in a significant 3D color-changing effect. It is one of the optically variable pigments with the highest technical content currently available.