1. Ink method: As the name suggests, it is a production method that uses ink color paste in the production of masterbatch, that is, through three-roll grinding, a low-molecular protective layer is coated on the surface of the pigment. The ground fine color paste is mixed with the carrier resin, and then passed through a two-roll plastic mill (also called a two-roll...

2.Flushing method: the pigment, water and dispersant are sanded to make the pigment particles smaller than 1μm, and the phase transfer method is used to transfer the pigment into the oil phase...

3. Kneading method: After mixing the pigment and the oily carrier, using the characteristic of the pigment to be lipophilic, the pigment is washed from the water phase by kneading...