Comparison of Barrier Properties of Aluminized Composite Film for Instant Noodle Packaging
In this paper, three different aluminized composite films for instant noodle packaging are used as test samples. The oxygen transmission rate of the three samples is measured by coulometric method.
- (1888PressRelease) March 18, 2020 - Aluminized composite film is an important packaging material for instant noodles. In this paper, three different aluminized composite films for instant noodle packaging are used as test samples. The oxygen transmission rate of the three samples is measured by coulometric method. The test principle, parameters and application scope of the oxygen transmission rate test system, and the test process are introduced, which provided reference for the selection and research of aluminized composite film packaging materials.
The aluminum coating composite film has high light shielding and barrier, and the packaging cost is relatively low, so it is widely used in the packaging of instant noodles. However, due to the influence of factors such as aluminum coating process and substrate material, the barrier performance of aluminum coated composite film is not the same. In this paper, the oxygen barrier properties of aluminum coated composite film produced by different manufacturers is compared.
In this test, three kinds of aluminized composite films for instant noodle packaging are used as test samples to test the oxygen permeability.
In this paper, the principle of coulometer is used to test the samples. The test process is in accordance with ASTM D 3985 – 95 Standard Test Method for Oxygen Gas Transmission Rate through Plastic Film and Sheeting Using a Coulometric Sensor.
In this test, C230H Oxygen Transmission Rate Test System is used to test the oxygen transmission rate of the sample. The instrument is independently developed and produced by Jinan Labthink Instruments Co., Ltd.
Coulometric method is a test method using Coulometric sensor, which is also called equal pressure method because the gas pressure on both sides of the sample is equal during the test. The upper and lower test chambers of the instrument are separated by the clamped sample. The upper chamber is filled with oxygen of certain pressure, and the lower chamber is filled with high-purity nitrogen of equal pressure. Under the effect of concentration difference, oxygen penetrates into the lower chamber from the upper chamber through the sample, and is carried to the sensor by nitrogen in the lower chamber for analysis. Coulometric sensor is developed based on the principle that oxygen can generate quantitative electrical signal when participating in electrochemical reaction. By measuring the electrical signal, the oxygen amount penetrating into nitrogen side can be obtained, and the oxygen volume penetrating through unit area sample in unit time can be calculated accordingly.
The device showed that the oxygen permeability of the three samples were 1.689 cm3/(m2•day)、12.934 cm3/(m2•day)、41.071 cm3/(m2•day)
The oxygen permeability of aluminized composite film material is an important factor affecting the quality of packaged instant noodles in storage period. In this paper, we use C230H Oxygen Transmission Rate Test System to test the oxygen permeability of three kinds of aluminum coated composite film samples for instant noodle packaging. One test has completed the test of three kinds of samples. The test efficiency is high, the control of each parameter in the test process is stable and accurate, which ensures the reliability of the test results, and the accuracy of the test results is high. It can be seen from the test results that the oxygen permeability of the three samples is quite different, that is to say, there is a big difference in the oxygen barrier. This difference is mainly related to the thickness, density and other factors of the aluminized layer. Therefore, not all the aluminized composite films have a high barrier ability, so it is necessary to strengthen the barrier test of this kind of materials.
Jinan Labthink Instruments Co., Ltd, is dedicated to providing customers with packaging testing solutions and helping the manufacturers to reach their goals of quality and safety assurance through improvement of packaging testing techniques and development of high-end packaging testing instruments. The newly introduced C series barrier testing systems adopting self-sensing technology revolutionarily improved the testing accuracy, efficiency and automation, realized the paradigm shift of packaging barrier testing instruments. For more information please visit www.labthink.com
###
space
space
Satisfied Users & 
Approved Press Releases
Print
Email
Report Spam