First, the sealing performance of suction nozzle packaging bag
The sealing performance refers to the suction mouth packing bag sealing reliability, through the test can ensure the integrity of the whole product packaging sealing, prevent products not good sealing performance, leakage, pollution, deterioration and other problems. There are many methods of sealing performance test, the most commonly used method is to use the sealing test instrument, such as the Labthink blue light MFY-01 sealing test instrument, using the vacuum principle, according to the national standard respectively in -30kpa, -50kpa, -70kpa, -90kpa for 0.5 minutes, the vacuum packaging is to observe the recovery of the sample after the test. Of course, the above method is the principle of using visual method, testing method is a qualitative and quantitative detection for suction seal and leakage mouth performance package, you can use the principle of positive pressure sealing performance test equipment, such as the LSSD-01 Labthink Portland light leakage and seal strength tester.
Two 、 the bottle cap torsion detection of suction mouth packing bag
The size of the locking and opening torque of the bottle cap is one of the technological parameters that the production unit is offline or on-line. Whether the torque value is right or not has a great influence on the intermediate transportation and final consumption of the nozzle packing bag. Microcomputer control, using NJY-20 torque instrument Labthink Portland light has the advantages of convenient operation, friendly man-machine interaction; with locking force, double opening force measurement mode, and the peak value kept automatically, and can display a variety of unit results statistical analysis; high accuracy, good stability, is indispensable in the process of production test equipment.
Of course, to ensure that the qualified nozzle bag sealing performance and cap torque index, but also the need for other indicators such as sealing strength, barrier properties such as control, to ensure the product shelf life and adaptability.