he plastic colorant is made of high proportion pigments or additives and thermoplastic resins, which are well dispersed. The resin selected has good wetting and dispersing effect on the colorant, and has good compatibility with the colored material. That is: pigments + carriers + additives = Masterbatch

The commonly used color masterbatch technology is the wet process. Colour masterbatch is prepared by water grinding, phase inversion, washing, drying and granulation. Only in this way can the product quality be guaranteed. In addition, a series of color masterbatch technology tests should be carried out when the pigments are grinded, such as determining the fineness of the mortar, determining the diffusion performance of the mortar, determining the solid content of the mortar and determining the fineness of the color slurry.

Colour masterbatch is generally composed of three parts. The carrier dispersant of colour agent is mixed, crushed and extruded into granules by high-speed mixer. Colour masterbatch has obvious advantages such as high concentration, good dispersibility and cleanliness in plastic processing.