Black mother is the use of a polyethylene resin as carrier, adding a certain amount of carbon black and color additives, after high temperature mixing and become, in simple terms, is in the plastic to plastic materials, plastic pigment coloring effect, black mother has wide application in the field of home appliances, toys, cars, plastic bags, electric wire, cable communication cable, has anti-aging, good brightness, scattered high effectiveness, low cost, environmental protection, and reduce the plant pollution advantages.
　　Black mother can choose different resin according to different purposes such as carrier, can make the range of the different use of black mother, some black mother can only be used for injection molding, some can only be used for blown film, for example, there are special injection black mother, granulation drawing special, special, pipe, special environmental protection special for high concentration, blown film, PVC special etc..
　　The whole color masterbatch industry, black mother takes a large proportion in the market demand, black before the parent in the production process, there is often a smoothness, compactness are poor problem, after a long-term exploration and innovation, the invention of the calcium oxide used in black female production, this is a progress of masterbatch industry.