For some difficult to disperse pigments, such as adding some EVA wax, the dispersibility is greatly improved. This is because EVA wax has polarity, which is beneficial to the wetting of the pigment surface. The melt viscosity of EVA wax is higher, which can be taught. Large shear force is beneficial to the dispersion of pigments. However, the price of EVA wax is much higher than that of general polyethylene wax, so the cost of color masterbatch after using EVA wax is also greatly increased. You can use polyethylene wax and EVA wax in a ratio of 1:2 to achieve satisfactory results. .