The surface gloss of the injection molding is poor, and there are two main reasons for the overall transparency. First, the mold surface is not polished well, and the second is that the melt is cooled prematurely. The specific solution is as follows:

(1) Increase the material temperature, injection pressure and speed, especially mold temperature. The mold temperature has a significant effect on the gloss.

(2) Improve the position of the gate and pay attention to the smooth flow of the material.

(3) Prevent the degradation or plasticization of plastics from being incomplete.

(4) The growth time of the mold is increased, and the pressure holding time should be lengthened.

(5) Prevent gas interference.