The development speed of color masterbatch is very fast. In addition, the production process of color masterbatch is simple and the investment is small. At present, there are hundreds of Color Masterbatch factories in China, with uneven production scale and technical level. The annual output of small masterbatch is tens of tons and large masterbatch is tens of thousands of tons. The product competition is becoming increasingly fierce, the profits of production enterprises are declining, and the quality of most color masterbatch products is low
Pigment is the raw material of color masterbatch. The quality of pigment directly affects the quality of Color Masterbatch, and the quality of Color Masterbatch directly affects the quality of plastic products. In other words, the requirements of plastic products for Color Masterbatch, that is, the requirements of color masterbatch for pigment. This includes safety, heat stability, light and weather resistance, acid and alkali resistance, migration resistance, chemical resistance, etc. However, there has been no standard for the pigment used for Color Masterbatch, and the standard for pigment used for coating has been used for 30 years.
The development speed of color masterbatch is very fast. In addition, the production process of color masterbatch is simple and the investment is small. At present, there are hundreds of Color Masterbatch factories in China, with uneven production scale and technical level. The annual output of small masterbatch is tens of tons and large masterbatch is tens of thousands of tons. The product competition is becoming increasingly fierce, the profits of production enterprises are declining, and the quality of most color masterbatch products is low. According to incomplete statistics, the titanium dioxide used in the production of color masterbatch is 20000 ~ 30000 tons per year. The rutile used is divided into three grades: high, medium and low. Imported rutile is used, medium grade domestic rutile is used, and low grade domestic anatase titanium dioxide is used. Huizhou Titan chemical, a Chinese color particle production company, uses imported titanium dioxide to produce color masterbatch, which is mainly used for export, and uses domestic titanium dioxide to produce color masterbatch to meet the domestic market. Due to the fierce competition, the use of color masterbatch of anatase titanium dioxide is still increasing.
There are several production processes of Color Masterbatch, such as pigment, resin, dispersant, volume pigment and other additives. High speed mixer twin-screw extruder extrudes excellent masterbatch. Color masterbatch is used as industrial raw materials, and its performance is usually shown in subsequent product applications. Therefore, the performance of titanium dioxide in color masterbatch is also mainly reflected in the application process of color masterbatch. Mainly reflected in the following aspects: 1) the coloring ability of titanium dioxide: determine the amount of titanium dioxide used in the color of the same plastic products; 2) Whiteness of titanium dioxide: determines the appearance of light (white) plastic products with the same titanium dioxide content; 3) Dispersion of titanium dioxide: it affects the production cost of black masterbatch and the appearance and luster of plastic products; 4) Processing performance of titanium dioxide: it affects the production cost of color masterbatch.
The color masterbatch is a plastic colorant formed by the good dispersion of a high proportion of pigments or additives and thermoplastic resin. The selected resin has good wetting and dispersion effect on the colorant, and has good compatibility with the colored material. It has the advantages of superior coloring effect, convenient automatic measurement and transportation, energy saving, no dust and no pollution. It is widely used in the coloring of plastics, coatings and other materials.
