Food packaging seal performance test method has been improved

Food vacuum packing sealing performance and overall internal gas residues directly affect the shelf life of foods and tastes change, is relevant companies must pay attention and control indicators. Sealing performance sealing reliability refers to the packaging through which the test can be padlock seal sealed to ensure the integrity of the product packaging, vacuum packaging the principle determines the overall tightness, and the importance of the internal gas residues.
Sealing performance testing methods commonly used in two ways: The first is to use the seal tester; using the vacuum principle, according to national standards are in-30kpa,-50kpa,-70kpa,-90kpa 0.5 min, mainly for vacuum packaging observed after the test sample recovery. Of course, the above method is to use the principle of visual method is a qualitative test mode. The second method is the use of the principle sealing pressure test equipment, by injecting a gas to the interior of the package to monitor pressure changes to determine its sealing properties; This method is clearly a quantitative test methods, but it is destructive to the sample test, test for vacuum packaging with certain limitations.
Recently, the launch of the latest vacuum packaging residual oxygen analyzer solves the above two principles device when tested for vacuum packaging problems. Test, the first chamber of the vacuum chamber filled with water, cover seal plate, and then the slow water metering cylinder to the designated area, the upper cover, compress the wire seals plate, while the test cavity is evacuated to the specimen swelling, and finally through analysis and related level calculated the amount of gas remaining in packaging; both quantitative measurement can be accurately vacuum packaging various types of food, packaging containers sealing performance.