Normal Photochromic UV sensitive Light-changing Powder pigment sunlight-changing color, intelligent colorless to color

Photochromic color-changing pigments are special pigments that transition from colorless to colored under specific light conditions. Their color-changing mechanism primarily relies on optical interference effects and molecular structural changes.

Our Normal Photochromic UV sensitive Light-changing pigment Principle

Optical Interference Effect‌: The pigment consists of multiple layers of metal or dielectric materials with differing refractive indices, forming a specific film structure via physical vapor deposition (PVD) technology. When the angle of incident light changes, the thickness, ratio, and sequence of each layer influence the wavelength of reflected or transmitted light, causing the color to shift with viewing angle. ‌

Molecular Structure Change: Certain photochromic pigments contain heterocyclic molecular structures. Upon UV exposure, the molecules undergo ring-opening to form a cyanide structure, causing coloration. When removed from the light source, they revert to a colorless state.

Our Normal Photochromic UV sensitive Light-changing Powder pigment Applications

Our products primarily used in cosmetics, automotive coatings, anti-counterfeiting labels, and other fields to achieve personalized visual effects through light changes.

The sample price is 358 usd; The bulk price is 208 usd.