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Color masterbatch is a plastic colorant that is well dispersed with a high proportion of pigments or additives and thermoplastic resin. The selected resin has a good wetting and dispersing effect on the colorant, and has a good phase with the material to be colored. Capacitive. Namely: Pigment + Carrier + Additive = Advantages of Masterbatches for Coloring with Masterbatches Commonly used coloring methods for thermoplastics are: Pigment mixes the natural resin with the colorant and granulates it into a colored plastic, which is then used in the molding process. Dry powder coloring: The powder coloring agent and the natural resin are evenly mixed and directly used to make plastic products. Masterbatch coloring is the most commonly used plastic coloring method nowadays.