Causes Of Rupture Of PE Stretch Film

PE stretch film sometimes broken film, especially for its low thickness of the product, the probability of such phenomenon will be higher than the general product, so what are the reasons for this situation:

1. The raw material contains impurities with large performance differences (such as low molecular weight oil pollution, etc.);

2. There are obvious transverse stripes and bubbles on the casting sheet;

3. Various non-obvious membrane breaking factors before transverse pulling are further expanded (longitudinal thickness fluctuation, etc.), which makes the local strain too large;

4. The deviation of crystallization and orientation of the cast is too large;

5. The filter is damaged, and the impurity content of the sheet casting is high;

6. Nose leakage;

7. Roll surface is crushed;

8, waste material, equipment scratch film;