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MST Packaging Co., Ltd.
Zuhause> Blog> 1120g old Beijing specialty whole duck vacuum cooked food packaging bag fresh and fragrant roast duck aluminum foil packaging film custom

1120g old Beijing specialty whole duck vacuum cooked food packaging bag fresh and fragrant roast duck aluminum foil packaging film custom

February 20, 2019

How to deal with the problem of uneven heat sealing of aluminum foil bags
Uneven heat sealing is also a common problem in aluminum foil bags. How do we solve this problem?

First, adjust the size of the wind ring stroke, so that the first three points of freezing.

2. Stop the inflation and traction at the melting point of the aluminum foil as much as possible to reduce the tensile orientation of the members due to inflation and traction.

Third, the inflation ratio and the traction ratio should be less than half of the previous one. If the inflation ratio is too large and the traction speed is too fast, the lateral and longitudinal stretching of the film is moderate, which will cause the aluminum foil bag to have a hot air gap.
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