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How to test the airtightness of self-sealing bags?
Publication Time:
2021-05-04 12:07
Self-sealing bag Can be used as inner and outer packaging for various small and medium-sized items (decorations, hardware, toys). They are made of food-grade stainless steel and can store various snacks, tea, seafood, etc. Waterproof, odorproof, moisture-proof, and insect-proof, preventing items from scattering; self-sealing bags can also be used to package clothing and other daily necessities. Anti-static self-sealing bags can be produced by adding anti-static regeneration during the film blowing process, generally used in the electronics industry.
Self-sealing bag The reason for its widespread use is mainly due to the product's good airtightness and excellent sealing during use. However, many people are concerned about the sealing issue. So how exactly should airtightness be tested? Let's find out together!
You can put liquid directly into the self-sealing bag, then seal it and place it directly on some test paper to observe if any liquid leaks. If leakage occurs, it means the product's seal is not good enough, or you can choose to perform the test under vacuum conditions.
Furthermore, self-sealing bag manufacturers have found that some companies not only use this method to test product sealing but also use vacuum observation methods. This method is still very simple and convenient; mainly, direct vacuuming ensures a certain pressure difference, and then you can observe the product's recovery and directly judge the tightness of the zipper bag itself.
Self-sealing bag The reason for its widespread use is mainly due to the product's good airtightness. Therefore, when producing this product, self-sealing bag manufacturers need to consider not only the product's quality but also its sealing. It should be noted that it can be considered a qualified product.
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