How to Determine Whether an Aluminum Spout Pouch's Material Meets Standards
Release time:
2025-07-24
Aluminum spout pouches are widely used in the food, beverage, daily chemical, and pharmaceutical industries due to their excellent barrier properties, leak resistance, and portability.
Aluminum spout pouches are widely used in the food, beverage, daily chemical, and pharmaceutical industries due to their excellent barrier properties, leak resistance, and portability. For buyers and users, whether the material meets standards is directly related to product safety and packaging performance. To determine whether an aluminum spout pouch's material meets standards, consider the following aspects.
1. Check the Material Structure and Number of Layers
High-quality aluminum spout pouches are typically composed of multiple layers of composite materials, such as PET/AL/NYL/PE. Each layer performs a specific function: PET provides printing quality and mechanical strength, aluminum foil provides barrier properties, nylon enhances puncture resistance, and PE ensures heat sealing. Products that meet standards should have distinct layers, uniform thickness, and a strong composite structure that resists delamination.
2. Test the Material's Physical Properties
Meeting industry standards can be determined by measuring tensile strength, puncture resistance, and heat seal strength. For example, insufficient heat seal strength can result in a poor seal, while insufficient puncture resistance can lead to damage during transportation. For food packaging, the oxygen transmission rate (OTR) and water vapor transmission rate (WVTR) must also be tested to ensure that the barrier properties meet standards.
3. Confirm that the material meets food grade or relevant safety standards
Packaging that directly contacts food, beverages, and other items must use raw materials that meet food grade standards and pass authoritative certifications such as FDA, SGS, and GB4806. Substandard materials may contain harmful heavy metals or volatile organic compounds, which are harmful to human health. When purchasing, request a test report and verify the legitimacy of the certification body.
4. Observe the appearance and printing quality
A qualified aluminum spout pouch should have a smooth surface, free of visible bubbles, wrinkles, scratches, or odors. The printing should be vibrant, abrasion-resistant, and not prone to fading. These appearance details often reflect the overall quality of the production process and material.
5. Verify through trial use
Before purchasing in large quantities, conduct simulated tests such as filling, dropping, and squeezing to observe the bag's performance during loading, transportation, and storage. Leakage, delamination, or a loose nozzle may indicate issues with the material or process.
To determine whether an aluminum spout pouch meets quality standards, a comprehensive consideration must be given to its structural composition, physical properties, safety certifications, appearance quality, and actual performance. Only by strictly controlling material quality can we ensure the safety and reliability of the packaging and provide optimal protection for the end product.
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