Aluminum foil composite film is one of the most widely used types of composite films in the packaging industry, typically composed of pure aluminum (AL) or vapor-deposited aluminum on polyester (VMPET). This material is favored for its excellent barrier properties and aesthetic appeal.
Key characteristics of aluminum foil include:
- Strong mechanical strength combined with a lightweight structure
- No heat adhesion, making it suitable for a variety of applications
- A bright metallic luster that enhances product appearance
- Excellent light-shielding and reflective properties
- Good moisture and water resistance
- Strong air-tightness and aroma protection
- However, it is prone to corrosion if not properly protected
On the other hand, aluminum films offer a similar metallic finish but have lower adhesion properties. During the composite processing stage, there is a risk of aluminum layer transfer, which can affect the quality and performance of the final product. Therefore, careful handling and proper manufacturing techniques are essential to maintain the integrity of the aluminum layer.
Overall, aluminum foil composite films are highly valued for their protective qualities and visual appeal, making them ideal for use in food, pharmaceutical, and cosmetic packaging applications.
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