Metallizing Base BOPP Film --To Serve As The Optimal Substrate For Vacuum Metallization

Metallizing base BOPP film is a specially engineered biaxially oriented polypropylene (BOPP) film designed to serve as the optimal substrate for vacuum metallization. This process involves depositing a microscopic layer of aluminum (or other metals) onto the film's surface in a high-vacuum chamber. The primary purpose of this base film is to provide an exceptionally smooth, uniform, and receptive surface that allows for a brilliant, high-gloss metallic finish after coating.

To excel in its role, the base film must possess specific inherent properties:

1. Excellent Surface Smoothness: A nano-scale smooth surface is crucial to achieve a mirror-like, high-gloss, and pinhole-free metallic layer without defects.

2. High Barrier Foundation: While the metal layer provides the primary barrier, the BOPP base itself has good inherent moisture barrier properties, which are enhanced post-metallization.

3. Superior Mechanical Strength: Offers high tensile strength, stiffness, and puncture resistance, ensuring it runs flawlessly on high-speed metallizing and converting equipment.

4. Tailored Surface Treatment: Features controlled corona or plasma treatment on the metallizing side to ensure perfect adhesion (wet-out) of the aluminum layer, preventing delamination.

1. Optimal Metallizing Efficiency: Its specific design allows for higher machine speeds, lower aluminum consumption, and reduced waste during the vacuum deposition process, lowering overall production costs.

2. Enhanced End-Product Performance: The combination of a superior base film and a uniform metal layer results in a final product with:

   • Excellent Gas and Moisture Barrier: Extends shelf life of packaged contents.

   • Superior Light and UV Barrier: Protects light-sensitive products.

   • Brilliant and Consistent Aesthetics: Delivers a stable, luxurious metallic appearance.

3. Cost-Effectiveness: Provides the visual appeal and functional benefits of metal at a fraction of the weight, cost, and material usage compared to foil laminates. It also improves yield in downstream processes like printing and laminating.

• Proven on Multivac Tray Sealers – No coating transfer at 120°C seal bars
•  Consistent Performance – Batch-to-batch fog resistance variation <5%
•  Customizable Options – Anti-static, high-barrier, or matte finish versions
•  Technical Support – Free validation trials with your packaging machinery

To ensure the longevity and performance of our BOPP film, please adhere to the following guidelines:

• Shelf Life: 6 months from the date of manufacture.
• Storage Conditions: Store in a cool, dry place away from direct sunlight and moisture.
• Temperature Range: 10°C - 30°C.
• Humidity: Keep below 60% relative humidity.
• Handling: Avoid folding or creasing the film to prevent damage.