The raw material of pigments, masterbatch. Paint quality directly affects the quality of the masterbatch, and masterbatch quality directly affect the quality of the plastic products. In other words, the plastic products to the requirements of the masterbatch, masterbatch requirement for paint. This includes security, heat stability, light fastness and weather resistance, acid-proof alkaline, high mobility, chemical resistance, etc. But with pigment masterbatch has no national standards, has been in use coating by the standards of the pigment, so for 30 years.

Masterbatch on the development of fast, combined with the masterbatch production process is simple, less investment of the current domestic masterbatch factory hundreds, production scale, technical level is uneven, small of dozens of tons, tens of thousands of tons, product competition, declining production enterprise profit, most of the masterbatch products of poor quality. According to incomplete statistics, each year for masterbatch production of titanium white 2 ~ 30000 tons, the use of rutile is divided into three files, including the use of high-grade imported rutile, mid-range domestic rutile, the use of the low-grade model of sharp titanium titanium white. China's largest color eye grain of huizhou sun chemical production company, using imported masterbatch of titanium white production is mainly used for exports, domestic production of titanium white masterbatch to satisfy the domestic market. Due to the fierce competition, use sharp titanium type titanium white masterbatch and increasing trend.

Masterbatch production process there are several, such as: paint, resin, dispersing agent, pigment volume, other auxiliary high-speed mixer twin-screw machine packed well masterbatch masterbatch as industrial raw material, the performance is usually in the subsequent product applications, therefore, titanium white in color eye grain performance is mainly reflected in the process of the application of the masterbatch. Mainly embodied in the following aspects: 1) titanium white coloring ability, decided to use the amount of titanium white plastic products same color; 2) titanium white white degree, decided to titanium dioxide content in the same light color (white) the appearance of the plastic products; 3) the dispersion of titanium white: influence of black masterbatch and plastic products production cost indices such as appearance, luster; 4) titanium white processing performance: masterbatch production cost.

Masterbatch by the high proportion of additive and thermoplastic resin, pigments or by the good dispersion of plastic colorants, it chooses the resin of colorants have good wetting and dispersing effect, and has good compatibility with being shaded material. It has a shading effect is superior, convenient automatic measurement and transport, the advantages of energy saving, no dust, no pollution, application in materials such as plastics, coating color.