1、 Testing of breathability and moisture permeability of infusion bag film materials

The research and control of oxygen permeability, nitrogen permeability, and moisture permeability of infusion bag film materials are particularly important in the infusion flexible packaging industry, as they directly affect the shelf life and safety of products. Use differential pressure method and cup method for testing. We recommend using the Paratronix GTR-V3 gas permeability tester and vacuum pressure difference tester. WVTR-C6 water vapor permeability tester cup weighing method tester.

WVTR-C6 water vapor permeability tester

GTR-V3 gas permeability tester

2、The testing index for the sealing strength of infusion bag film sealing is that in order to achieve packaging purposes, the sealing must have a certain strength to withstand the effects of the contents and external pressure, ensuring that it does not crack or break during circulation. For the detection of this indicator, two types of instruments are required for comprehensive testing. One instrument is specifically used for heat sealing sample preparation, such as a heat sealing instrument, while the other instrument requires testing of heat sealing strength, such as an intelligent electronic tensile testing machine. It is recommended to use the Paratronix brand HST-01A heat sealing tester with dual blade temperature independent control, which is suitable for measuring the heat sealing performance parameters of various plastic films, composite films, aluminum foils, PVC hard sheets and other materials. ETT-A electronic tensile testing machine intelligent testing, with a super large range.

HST-01A heat sealing tester

  ETT-A electronic tensile testing machine

3、 Sealing testing of infusion bag packaging

Sealing performance is also an important indicator of packaging, and it has a significant impact on the quality of the product. Poor sealing is the main cause of future leakage. The sealing test is currently widely used in the industry. It is recommended to use the Paratronix brand LT-02P sealing test instrument, which uses the vacuum principle and maintains a predetermined time under the corresponding pressure according to national standards. Leakage during the test process can be observed visually. By measuring the sealing performance, the quality of the infusion bag packaging can be evaluated, and the rationality of the sealing process can be determined.

LT-02P sealing test instrument