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The method is to fill the bag with powdery product under normal pressure, and there is an air-permeable membrane wall inside the bag. In order that the air or other gas present in the powdered product is discharged through the gas permeable membrane wall, the packaged fines are placed in a vacuum, and while still maintaining a vacuum, they are closed with an impermeable membrane. Permeable membrane. The bag of the powdery product is a cavity formed by a gas permeable membrane and an airtight membrane that overlaps with it.
Fine powder vacuum packaging method
May 01 07:05:45, 2024
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