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How to check whether the vacuum aluminum foil bag meets the standard?

Views: 475 Author: Soonseal Publish Time: Origin: www.sealingwell.com

How to identify whether the vacuum aluminum foil bag meets the standard, the editor mainly has the following factors:

1. From the observation of the sealing tightness, if there are some small cracks in the sealing, it is judged as unqualified product.

2. Observe visually from the appearance, and visually check whether there are significant scratches and pinholes on the surface of the vacuum aluminum foil bag. To check whether the seal is contaminated, it cannot be judged by visual inspection, and slight neglect is the cause of leakage and rot in the future. To check the flaws of the seal, a dye-added surfactant can be sprayed into the seal and see whether it penetrates or not to distinguish the seal's tightness.

3. Observation of the sealing strength experiment. Cut the vacuum aluminum foil bag to be inspected into a strip with a width of 15mm. Use a material tester to measure the sealing strength at a speed of 300±20mm/min. Generally, the sealing strength of the composite bag should reach 2334N/ 15mm.

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