Causes of film bubble instability in film blowing machine

1) If the heating temperature of the machine is too high, the machine temperature should not be too high, which may also cause peculiar smell of the film.

2) If the film expansion ratio is too large, the expansion ratio should be kept within a reasonable range.

3) The extrusion amount of screw is too large, and the extrusion amount is directly related to the screw. The screw with appropriate length diameter ratio should be selected.

4) The cooling effect of the air ring is not good, and the cooling effect of the air ring directly affects the quality of the film.

5) The proportion of raw material formula is unreasonable

6) Due to the factors of the surrounding environment, it is also possible for the natural wind to blow the film.