Testing Aluminum Plastic Composite Liquid Packaging for Optimal Barrier Properties

Aluminum plastic composite liquid packaging, such as juice pouches, is a popular choice due to its ability to preserve the quality and extend the shelf life of the contents. The packaging relies heavily on its barrier properties. These properties, primarily the ability to block oxygen and moisture, are rigorously tested to ensure product safety and extended shelf life. The aluminum layer provides an exceptional barrier against these elements, preventing degradation of flavor, nutrients, and color. Plastic layers, typically polyethylene or polypropylene, add structural integrity and sealability, creating a robust protective package.

Testing these packages involves precise measurements of oxygen and moisture transmission rates. Oxygen transmission rate (OTR) testing quantifies how much oxygen permeates the material over time, vital for preventing oxidation. Similarly, water vapor transmission rate (WVTR) testing measures moisture penetration, which is critical for inhibiting microbial growth and maintaining product consistency.

Labthink C403H Oxygen /Water Vapor Transmission Rate Test System is based on the testing principle of Coulometric oxygen sensor and infrared water vapor sensor. It is designed and manufactured according to ASTM D3985、ASTM F1249，ISO 15106-2 and other relevant standards to provide high precision and high efficiency oxygen and water vapor transmission rate tests for high and medium gas barrier materials. It is suitable for testing the oxygen and water vapor transmission performance of films, sheets and related materials in the fields of food, medicine, medical devices, daily chemicals, photovoltaic, electronic and many others.

Beyond barrier properties, tensile strength and burst tests evaluate the material's overall durability. Migration testing ensures no harmful substances leach into the liquid, safeguarding consumer health. Environmental stress cracking resistance assesses the package's resilience under various environmental conditions. These comprehensive tests guarantee that aluminum plastic composite liquid packaging effectively preserves product quality and meets stringent safety standards.

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!