The method of extrusion is to mix the dye and the plastic by dry dyeing, then crush it into a thin strip with a special extruder and cut it into granules. The method is well blended and helps to disperse undesirable pigments
Dry staining dye and a certain proportion of plastic pellets into the rotating drum, and adding 0.01%~0.1% zinc stearate or white mineral oil as a wetting agent to make plastic and easy to dye binding, rotating drum to make plastics and dye mixing.
This method is basically the same as the extrusion dyeing method. The difference is that the proportion of the dye in the plastic is 10 times higher than that of the usual one. It can be used more frequently when the plastic is injected
