On the one hand, improving the surface gloss of plastic products is called brightening modification, on the other hand, reducing the surface gloss of plastic products is called extinction modification.
Relatively speaking, brightening technology is more important. Brightening of plastics means to improve the surface gloss or finish of plastic products. In addition to the reasonable selection of raw materials, the specific methods include adding brightening method, blending brightening method, shape control brightening method, control of the finish of molding equipment, secondary processing brightening method and surface coating brightening method.