The purchased pigment powder has sufficient fineness, which requires more than 1000 mesh.
The mixing of pigment powder and carrier resin must be sufficient. We use two kneading methods, kneader and internal mixer to ensure a good combination.
During the extrusion granulation process, add a finer stainless steel filter (between 150 mesh and 180 mesh) to ensure that the coarse particles in the pigment powder are completely filtered out.
After the manufacture of the masterbatch is completed, the masterbatch is used in the blown film processing process, which can best reflect the dispersion performance of the masterbatch.