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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.
The color masterbatch is composed of three basic elements: pigments or dyes, carriers and additives. It is an aggregate obtained by uniformly loading a super-constant pigment in the resin. It can be called Pigment Concentration. The tinting strength is higher than the pigment itself. Mixing a small amount of color masterbatch and uncolored resin during processing can achieve a colored resin or product with a designed pigment concentration.