
Rigid PET/EVOH/PE film for food packaging
2024-11-15 16:04PET/EVOH/PE films are composite films that combine the properties of Polyethylene Terephthalate (PET), Ethylene-Vinyl Alcohol (EVOH), and Polyethylene (PE). These films are commonly used in packaging applications due to their excellent barrier properties against gases like oxygen and moisture, which help preserve the freshness and quality of packaged products. Here are some advantages of using PET/EVOH/PE films:
1. **Superior Barrier Properties**: EVOH is known for its exceptional barrier properties against gases such as oxygen, carbon dioxide, and nitrogen, as well as against moisture. This makes PET/EVOH/PE films ideal for packaging perishable goods like food and pharmaceuticals.
2. **Heat Resistance**: PET provides good heat resistance, allowing the film to be used in hot fill or retort applications without losing its integrity.
3. **Mechanical Strength**: The combination of PET and PE provides mechanical strength and flexibility, making the film durable and easy to handle during packaging processes.
4. **Transparency**: PET is transparent, which allows for the visual inspection of the packaged product, enhancing its appeal on retail shelves.
5. **Versatility**: The multilayer structure can be tailored to meet specific needs, such as adjusting the thickness of the EVOH layer to fine-tune the barrier properties.
6. **Sealability**: The PE layer allows for easy sealing, ensuring that the package remains tightly sealed to maintain the product's freshness.
7. **Environmentally Friendly Options**: Some variations of these films can incorporate recycled materials or be designed for easier recyclability, aligning with sustainability goals.