The principle of the sealing performance test for flexible packaging mainly involves creating an internal and external pressure difference by vacuuming and observing whether gas escapes from the sample or if there is a shape change to determine the sealing performance. Specifically, the flexible packaging sample is placed in a vacuum chamber, and a pressure difference is formed between the inside and outside of the sample by vacuuming. If the sample has a sealing defect, the gas inside the sample will escape outward under the action of the pressure difference, or the sample will expand due to the internal and external pressure difference. By observing whether continuous bubbles are produced in the sample or if the sample shape can fully recover after the vacuum is released, the sealing performance of the sample can be judged as qualified or not. This method is applicable to packaging items with outer layers made of plastic film or paper materials.
YYP134B Leak tester is suitable for leak test of flexible packaging in food, pharmaceutical, daily chemical, electronics and other industries. The test can effectively compare and evaluate the sealing process and sealing performance of flexible packaging, and provide scientific basis for determining relevant technical indexes. It can also be used to test the sealing performance of the samples after the drop and pressure test. Compared with the traditional design, the intelligent test is realized: the preset of multiple test parameters can greatly improve the detection efficiency; the test mode of increasing pressure can be used to quickly obtain the sample leakage parameters and observe the creep, fracture and leakage of the sample under the stepped pressure environment and different holding time. Vacuum attenuation mode is suitable for automatic sealing detection of high value content packaging in vacuum environment. Printable parameters and test results (optional for printer).
The vacuum chamber size and shape can be customized according to customer request, usually cylindrical and size can be choosen by the following:
Φ270 mmx210 mm (H) ,
Φ360 mmx585mm (H) ,
Φ460 mmx330mm (H)
If any specifical request, do pls feel free to contact with us!
Post time: Mar-31-2025