Color plastic is also called color, is a new polymer material special colorant, also known as pigment preparation. Color masterbatch is mainly used in plastics. Color masterbatch is composed of pigment or dye, carrier and additive three basic elements, is the super constant amount of pigment uniformly attached to the resin and made of the aggregate, can be called pigment concentrate, so its coloring power is higher than the pigment itself. When processing with a small amount of color masterbatch and uncolored resin mixed, can achieve the design pigment concentration of colored resin or products.