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HDPE bags in roll problem

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IoannisP

Mechanical
Mar 13, 2020
19
Good morning everyone,

Recently, we tried to produce HDPE bags in rolls . The thickness was 11-12μm.

During production we faced the following problems.

1. The bubble was unstable when we tried to give it height. We tried a long neck shape.
2. The rolls were easily torn in the TD direction. Not elasticity at all
3. The material ( the film ) wasn't as elastic as we thought . Maybe because of the HDPE HMW raw material we used.

Could anyone help? Any ideas how we can fix these problems.

Thank you.
 
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