Aluminum foil bags have become our daily necessities, especially in hospitals and other places to use more, aluminum foil bags also have different packaging, how can it detect the quality of the problem?
1, appearance: take this product, bright in the natural light, face up to the visual. There should be no perforation, foreign body, adhesion, composite layer separation, obvious damage, bubbles, wrinkles, dirt; composite bag heat sealing part should be smooth without sealing, open easy to open.
2, size: the use of qualified 5m steel tape measure the width and height of the sample, and then measure the sample single layer thickness by qualified digital electronic micrometer (specifications: 0 ~ 25mm). The measured data should be 110 ± 2mm in width, 150 ± 5mm height, and 0.08 + 0.008mm single layer thickness.
