Yogurt cup packaging quality control technology and detection methods

Cup packaging is mostly used for yogurt, and the packaging is divided into plastic cups and paper cups. Yogurt plastic cup packaging has maintained a rapid development momentum in recent years due to its good rigidity, elegant appearance, good surface finish, strong ink printing adhesion, and excellent low-temperature freezing resistance; however, such as yogurt plastic cup packaging is not easy to open, and plastic Packaging quality issues such as cup sealing and unsealing and yogurt spillage during storage and transportation of plastic cups have become common concerns among yogurt production companies.

According to relevant standard requirements, the quality of yogurt plastic cup packaging can be controlled from the following aspects:

Opening force (tear force) and mechanical properties of yogurt plastic cup packaging

If the sealing strength of yogurt plastic cup packaging is too strong, it will not be easy for consumers to open, and even if the zipper film is torn, it will not be opened. Using SYSTESTER electronic tensile testing machine, on the one hand, it can meet the testing of mechanical properties of plastic cup packaging materials, such as: heat sealing performance, tensile strength and elongation test, peel strength, tear strength and other test items. On the other hand, the opening force (tearing force) of plastic cup packaging can also be measured, and the puncture performance of plastic cup packaging can also be tested.

Sealing performance of Yogurt Packaging Containers

The sealing of yogurt plastic cup packaging is an important indicator for the testing of finished yogurt packaging. Through testing, the sealing integrity of the entire product packaging can be ensured, and problems such as leakage, contamination, and deterioration caused by poor sealing performance of the product can be prevented, effectively comparing and Evaluate the sealing process and sealing performance of packaging to provide scientific numerical basis for determining relevant production technical indicators. SYSTESTER LEAK-519 sealing tester, during the test process, pay attention to the leakage of the sample during vacuuming and vacuum maintenance, and observe whether there are continuous bubbles. When isolated bubbles appear, they are not considered leaks.

Barrier properties of yogurt plastic cup packaging

The barrier performance of yogurt plastic cup packaging is an important factor affecting the quality of its shelf life, and it is also an important reference for analyzing the shelf life. This test can solve the problem of yogurt and milk caused by the increase in oxygen content and humidity in the package. Problems such as product deterioration. It can be said that in a certain sense, for the same yogurt or yogurt product (with the same processing technology), the barrier properties of the packaging material are the main determinant of its shelf life. Therefore, it is crucial to test the barrier properties of packaging materials for yogurt and dairy products.

Barrier performance mainly refers to the barrier effect of packaging materials on gas, liquid and other permeable substances. Barrier performance testing includes gas (oxygen, nitrogen, carbon dioxide, etc.) and water vapor permeability testing. SYSTESTER's barrier testing instruments include: GTR gas permeability testing system, OTR oxygen transmission rate testing system, WVTR vapor transmission rate testing system, etc. It is suitable for testing the barrier properties of films, sheets, bottles, bags, and special-shaped containers against common gases such as oxygen, water vapor, carbon dioxide, nitrogen, helium, and air.