White pigment is applied much in the plastic material and masterbatch with higher and higher quality requirement. Titanium Dioxide plays an important role in the quality of masterbatch. It can give plastic material whiteness, brightness and opaqueness. And the whiteness, brightness, opaqueness and processability are its key parameters. Its whiteness varies from different suppliers. Better whiteness makes masterbatch better appearance. With adding 20% to 17% titanium dioxide in masterbatch formulation, it can make the reflectiveness of the surface light, and make plastic products with better opaque and whiteness. The dispersibility is affected by the particle size distribution. And the processability of titanium dioxide will affect on the production effectiveness and cost of masterbatch.