Identify whether the vacuum bag packaging meets the standard

How to identify whether the packaging of vacuum bags meets the standard? The manufacturer of food packaging bags will introduce the following factors:

First of all, observe from the sealing tightness. If there are some thin small seams in the sealing, it will be judged as unqualified products.

Secondly, observe from the visual appearance to see if there are obvious scratches and pinholes on the surface of the composite vacuum packaging bag. It is important to check whether the seal is contaminated. It can not be determined immediately by visual inspection. Slight neglect is the cause of leakage erosion in the future. To check the sealing defect, a kind of surface active agent with dye can be sprayed into the seal to see whether it passes through or not to distinguish the sealing tightness.

The last is the observation of the sealing strength test. Cut the sealing of the checked composite vacuum packaging bag into a strip with a width of 15mm, and measure the sealing strength with a universal material tester at a speed of 300 ± 20mm/min. Generally, the sealing strength of the composite bag should reach 2334N/15mm.

The above are the most important factors to identify the packaging of vacuum bags. For reference only, I hope to help you with the research of vacuum bags. At the same time, welcome to our factory for guidance!

Cooking bag manufacturer