The use of masterbatch is very simple, just mix it with resin particles according to the specified ratio and mix it by hand. Black master manufacturers should pay attention to the following problems in the operation of the equipment:
1. Appropriately increase the die temperature of the extruder to increase the brightness of the product.
2. The mixing chamber of the injection molding machine or extruder generally has multiple temperature zones, among which the temperature near the blanking port should be slightly higher, which is to make the masterbatch melt quickly after entering the mixing chamber and mix evenly with the plastic resin as soon as possible, which is conducive to the masterbatch pigment in a good dispersion state in the product.
3. The black master manufacturer will properly apply back pressure to the injection molding machine, which can improve the mixing effect of the screw, which is conducive to the dispersion of pigments, and the side effect of applying back pressure is to slow down the injection molding speed.