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. It acts as the critical foundation that determines the quality, performance, and efficiency of the final metallized product.

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. Low Heat Shrinkage: Exhibits outstanding dimensional stability under the heat of the metallization process, preventing wrinkles or distortion.

3. 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.

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

Using a dedicated metallizing grade BOPP film offers significant benefits over standard films:

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.