Five Factors Affecting The Smoothness Of The Film Surface Blown Out By A Film Blowing Machine

When the surface of the film blown by the film blowing machine is not smooth, like ground glass, it may produce fine ripples and unevenness.

How to solve it

Below, GUOYTAI Machinery has compiled five methods to solve the problem of uneven film surface

① The design of the mold head is unreasonable, and the shaping section is too long.
② If the gap between the die heads is too small and the melt breaks during extrusion, a die head suitable for the raw material should be selected.
③ The mold temperature is too low, raise the temperature.
④ Insufficient mixing in the extruder. Check temperature, filter screen, etc.
⑤ There is carbonized resin inside the mold mouth, which causes the discharge to be disordered. The mold head should be cleaned.