Liquid color paste is different from traditional pigment-masterbatch, it prepares by grinding the pigment. So it can disperse well and use easily for color matching without inhomogeneous color shade. In addition, the property of liquid can help to mix well with plastics in molten state. And compared with traditional dye-masterbatch, it can also reduce amount of wastewater to protect the environment. The liquid color masterbatch shows great transparency, and balance color stability and weather resistance. Finally, it can reflect “Pigment dyeing”.