Cailong

Technical Solution: PET ALOX Laminated Structure for High-Barrier Transparent Packaging

Core Value Proposition:​ Achieves extremely high barrier performance​ comparable to aluminum foil while maintaining excellent transparency, offering an integrated packaging solution that combines superior product protection with outstanding shelf appeal for premium brands.

I. Technical Principle: Innovative "Sandwich" Structure

The core of this technology lies in integrating a special "non-sealable transparent barrier layer"​ into conventional flexible packaging laminates. The general structural model is as follows:

1. Outer Layer (Printing/Functional Layer):​ Typically PET​ or Matte PET. Provides mechanical strength, printability, and meets specific aesthetic requirements (e.g., high gloss or matte finish).
2. Core Barrier Layer:​ PET film coated with ALOX (Aluminum Oxide). This is the key component. An ultra-thin aluminum oxide coating forms a dense, pinhole-free barrier on the PET substrate, effectively blocking the permeation of oxygen and water vapor.
3. Inner Layer (Sealant Layer):​ PE​ or CPP, selected based on product content and processing needs. Provides reliable heat-seal performance to ensure package integrity and is in direct contact with the product.

II. Detailed Breakdown of Three Typical Laminate Structures (As Shown in the Image)

III. Advantages vs. Traditional Solutions

IV. Summary: Tailored for High-Value Markets

The PET ALOX Laminated Structure Technology​ successfully resolves the long-standing trade-off in packaging between "high barrier"​ and "high transparency". It is not just a technical advancement, but also a tool for brand enhancement, enabling:

• Extended product shelf life, reducing waste.
• Creation of outstanding shelf impact, boosting purchase intent.
• Fulfillment of consumer desire for "visibility, freshness, and premium quality".