https://www.anmeiplastics.com/what-is-the-masterbatch-material-in-plastic-products.html
Ⅰ. What is masterbatch material?
Masterbatch material is a new type of special colorant for polymer materials. This superior coloring performance, energy saving, no dust and no pollution, is widely used in polyethylene, polypropylene, polystyrene, ABS, nylon, PC, PMMA, In PET and other resins, colorful fibers, clothing, daily plastics, wires and cables, household appliances, agricultural films, auto parts and other products are produced.