Pigment carbon black main function are dyeing, increase blackness and brightness, increase covering power, ultraviolet-proof. Pigment carbon black mainly used in coatings, inks and plastic, different products choose different indicators. Main indicators of pigment carbon black are OAN, Lodine Absorption Number, BET surface area, Particle size, Tint strength. Each indicator are related with dispersion and blackness of carbon black. The main process of producing pigment carbon black is furnace and gas method. Some pigment carbon black need through oxidation, post-treatment and other processes to achieve higher standards and requirements.