Color masterbatch, also called color seed, is a new special colorant for polymer materials, also known as Pigment Preparation. The master color is mainly used in plastics. The color master is composed of Pigment or dye, carrier and additive. It is an aggregate made by evenly loading super pigment in the resin. It can be called Pigment Concentration, so its coloring power is higher than the pigment itself. When processing with a small amount of color master and uncolored resin mixing, can reach the design pigment concentration of coloring resin or products.