The coulometric method was employed to measure the OTR of the packaging bags. This method involves creating a concentration difference between high-purity oxygen on one side of the sample and high-purity nitrogen on the other. As oxygen permeates through the material, it is detected by a coulometric sensor, allowing for a precise measurement of OTR.
Labthink C230H Oxygen Transmission Rate Test System was used for the testing. This instrument is designed to accurately measure the OTR of various materials, including plastic films, sheeting, paper, and packages. It features a high-precision coulometric sensor, temperature and humidity control, and a user-friendly interface.
The OTR of the aluminum plastic composite film packaging bags was found to be 0.2346 cm³/pkg·24h. This value indicates the rate at which oxygen penetrates the packaging.
The oxygen barrier properties of packaging materials are essential for ensuring the quality and safety of food products. The coulometric method, as employed in this study, provides a reliable and accurate means of measuring OTR. Labthink C230H Oxygen Transmission Rate Test System is a valuable tool for researchers and quality control professionals in the food packaging industry. By understanding the OTR of packaging materials, manufacturers can select appropriate materials and optimize packaging designs to preserve product quality.
As the demand for functional packaging materials grows, testing methods are evolving to ensure a more comprehensive evaluation of packaging films. Labthink encourages collaboration with packaging industry companies for quality control! Visit the website www.labthink.com to learn more!
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