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How to prevent air leakage when making vacuum packaging bags?

by:Supouches Packaging     2022-08-25
Vacuum packaging bags are a very common packaging bag in our lives. The use of vacuum packaging bags to package food can prolong the storage time of things and make the food less prone to mold. But when we buy things in the supermarket, we will find that sometimes some vacuum packaging bags are leaking, and the food inside is inedible. How can we prevent air leakage in vacuum packaging bags? 1. When sealing, it is necessary to adjust the heat sealing time, and the vacuum time should be determined according to the actual product and the size of the plastic packaging bag. The seal must be placed flat, not wrinkled, and the machine temperature must be constant, so as to ensure that the packaging bag will not leak. 2. It is necessary to clearly stipulate that the supplier cannot add any recycled materials, otherwise trachoma will appear on the membrane surface, which will cause chronic air leakage. 3. Find a strong supplier of plastic packaging bags, and ask the supplier to provide a material report and composition to achieve quality qualification. 4. When the device is put into the box, and when it is transported (especially when it is shipped), it should be handled with care to avoid damage.
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