The carbon black content in the black masterbatch used in injection molding or blown film, sheet, sheet, extrusion and other processes should not be too high, but to ensure the blackness and sufficient hiding effect of the product, it is recommended to choose the dispersion in the black masterbatch. A good carbon black variety, and the recommended content is about 40%, not more than 50%! The color of the color masterbatch used in the dyeing and granulating direction can be selected to be about 50% or more.
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