Yog vim li cas thiab txoj kev kho mob rau cov neeg pluag zaj duab xis pob tshab ntawm zaj duab xis tshuab tshuab

ua rau qhov teeb meem:

① The extrusion temperature of the film blowing machine is low, and the resin plasticization is poor, resulting in poor transparency of the film after blowing;

②The inflation ratio is too small;

③The cooling effect is not good, which affects the transparency of the film;

④ The moisture content in the resin raw material is too large;

⑤ The traction speed is too fast, and the film cooling is insufficient