Copper chrome black is a kind of black pigment with blue phase that has been calcined at high temperature. It has excellent chemical resistance, outdoor durability, light resistance, thermal stability, non-permeability and non-migration characteristics. It is widely used in fields with high requirements for heat resistance, weather resistance and light resistance; Compatible with most resins or polymers. It is characterized by outstanding coloring power, strong covering power, blue hue and easy dispersion.