VMPET-TH Film (Vacuum Coated AlOx High Clarity/Barrier Film)

Foil-level barrier × Fully transparent × Microwaveable

VMPET-TH film product photo

Traditional packaging often uses aluminum foil as the highest barrier material, but foil is opaque, non-microwaveable, and leaves aluminum ash after incineration, polluting the environment.

To solve these issues, we developed VMPET-TH film, which deposits aluminum oxide (AlOx) onto PET via vacuum coating to create a fully transparent, ultra-high barrier, microwaveable eco-friendly film. It can completely replace traditional aluminum foil and chlorine-containing barrier films (KPET, KOP, KNY) and also compensates for EVOH film's poor humidity stability.

Structure and Principle
  • Base: PET material (biaxially stretched, tough and heat-resistant above 120°C) provides the film's strength.
  • Vacuum coating: an ultra-thin aluminum layer is oxidized to form a transparent AlOx ceramic layer that blocks oxygen and water vapor while keeping transparency.
  • Surface treatment: corona or primer can be applied for easy printing and lamination.
    • Depositing aluminum on PET and oxidizing it into transparent aluminum oxide creates a film with foil-level barrier while remaining transparent.
    Why Choose Aluminum Oxide?

    Maintains transparency: the aluminum layer oxidizes into a glass-like AlOx layer, offering visual clarity and ideal for high-end packaging windows.

    Ultra-high barrier: provides foil-like barrier against oxygen and moisture.

    Moisture- and heat-resistant, microwaveable: withstands 121°C high temperature and humidity, suitable for microwave heating.

    Eco-friendly: chlorine-free, emits no toxic gases when burned, and contains very little metal.

    Material Features

    High barrier: blocks oxygen and water vapor at foil-equivalent levels.

    High transparency: completely colorless for direct product display.

    Heat resistant: suitable for retort and sterilization of ready-to-eat foods.

    Microwaveable: non-metal structure allows microwave heating.

    Metal-detection friendly: low metal content does not affect contamination detection systems.

    Environmentally incinerable: burning yields no toxic gases or residues, saving energy and reducing carbon.

    Lightweight: replaces foil and rigid containers, reducing weight.

    High stability: maintains material stability under high temperature, humidity, and long-term storage.

    Excellent printing and processing: surface is printable and easy to laminate with other materials.

    Abrasion, tensile, and chemical resistance: suitable for products containing oils, acids/alkalis, or requiring high tension.

    Wide application: usable for food, pharmaceuticals, chemicals, and functional products.

    Best use: ideal for modern packaging that demands eco-friendliness, high barrier, transparency, and metal detection capability.

    Applicable Products
    Ready-to-eat pouches, microwave meals, nuts, jerky, dried goods, medicines and supplements, functional products, and visually designed packaging that require both barrier and transparency.
    Summary
    VMPET-TH is a transparent, microwaveable, eco-friendly AlOx-PET high-performance film with foil-level barrier. It is a green alternative to aluminum foil and KPET, setting a new standard for future food, pharmaceutical, and sustainable packaging.