How to identify aluminum foil vacuum packaging?

- 2019-10-08 -

With the improvement of living standards, the people are increasingly demanding their own lives. We are increasingly demanding the quality of aluminum foil vacuum packaging. Packaging manufacturers are paying more and more attention to the quality inspection methods of aluminum foil vacuum packaging bags. So what are the methods for quality inspection of aluminum foil vacuum packaging? Let's summarize it today.

Check the appearance of aluminum foil vacuum packaging

The visual inspection mainly includes whether the packaging bag has obvious scratches; whether there are pinholes; whether there is pollution; whether the sealing is standardized, etc., in the aluminum alloy, the 1 series, the 3 series, the 8 series alloy can be used as the aluminum foil. Vacuum-packed substrates, Mingtai Aluminum's typical aluminum foil products are 8011 aluminum foil, 1050 aluminum foil, 3003 aluminum foil, and the like.


8011 aluminum foil

Check the sealing strength of aluminum foil vacuum packaging

The sealing performance of aluminum foil vacuum packaging determines the final quality of the packaging bag. Sealing strength detection method: The forefinger of both hands is extended into the mouth of the aluminum foil vacuum packaging bag, and both hands are evenly forced to tear in the opposite direction. When the inner layer is CPE material, the strength is much better than that of the OPP material. For example, if the finger is inserted into the bag, if it is not easy to tear, the sealing property is good. If it can be easily torn, it is regarded as unsatisfactory strength. product.


aluminum foil vacuum packaging


Check for leaks and perforation resistance

When inspecting the leakage, it is mainly detected by the coloring soaking method. The specific operation is to put the colored surface active agent into the aluminum foil vacuum packaging bag and seal it on a white paper, gently squeeze it by hand. After a few minutes (about 5-6 minutes), observe whether there is any color liquid on the paper, and then press the aluminum foil vacuum packaging bag and test it again. The perforation resistance test is a drop detection method using an aluminum foil vacuum packaging bag. Place the aluminum foil vacuum bag on the rough ground horizontally and vertically. Of course, the extent and height of the drop depends on the size and weight of the bag. If it does not leak, it means strong puncture resistance.

aluminum foil for vacuum packaging

Aluminum foil vacuum packaging has good barrier properties, high heat sealing performance, good moisture resistance and high transparency. And acid resistance, wear resistance and other functions are also very good, so it is widely used in the food industry packaging bags. The aluminum foil for vacuum packaging produced by Mingtai Aluminum has a good reputation at home and abroad and can be customized globally.

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