Title: Vacuum Food Packaging Sealing Performance Testing
Abstract: The overall sealing performance of vacuum food packaging directly affects the storage life and taste of food, which is an indicator that related companies must pay attention to and control.
Keywords: sealability, vacuum food packaging, seal tester, leak and seal strength tester
Body :
The main cause of food spoilage is caused by the activity of microorganisms, and the survival of microorganisms (such as mold and yeast) requires oxygen. Vacuum food packaging uses this principle to remove oxygen from the inside of the package and food cells. To make the microbes lose the " environment of survival " and completely isolate the contents from the external environment, so as to achieve the effect of long-term storage and preservation of the food. It can be seen that the overall sealing performance of the vacuum food packaging itself directly affects the storage life and taste of the food, and is an indicator that the relevant enterprises must pay attention to and control. Cell Theo then briefly introduces the sealing performance of vacuum food packaging with a seal tester.
Sealing performance refers to the reliability of the packaging bag seal. This test ensures the integrity of the entire product packaging seal. The principle of vacuum food packaging determines the importance of its overall sealing. There are many methods for sealing performance testing. The most common method is to use a leak tester, such as Cell 's LT-03 seal tester ; using the vacuum principle, according to national standards at -30kpa , -50kpa , -70kpa , - 90kpa is kept for 0.5 minutes. For vacuum packaging, it is mainly to observe the recovery of the sample after the test. Of course, the above method is based on the principle of visual inspection. It is a qualitative test method . If you want to quantitatively test the sealing and leakage performance of dairy plastic cup packaging, you can use the positive pressure method to seal the performance testing equipment, such as Cell Theo's LSST. -01 leak and seal strength tester.
Of course, after ensuring that the sealing index of the vacuum food packaging is qualified, it is also necessary to control other indicators such as breaking force and elongation, heat sealing strength, friction coefficient, peel strength, etc., to ensure the quality of the product during the shelf life. . For more information on related testing instruments, you can find more information at .