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Home / News / Industry News / What are the primary barrier properties of the Composite Pet/PE PVC/PE Film?
The primary barrier properties of the Composite Pet/PE PVC/PE Film are as follows:
1. Oxygen Barrier: The film has excellent oxygen barrier properties, which means it prevents the permeation of oxygen into the packaged product. This is crucial for food and pharmaceutical packaging applications as oxygen can promote oxidation reactions, leading to the degradation of food products or loss of potency in pharmaceuticals. The low oxygen permeability of the film helps in maintaining the freshness and quality of the packaged items, extending their shelf life.
2. Moisture Barrier: Another important property of the Composite Pet/PE PVC/PE Film is its ability to act as a barrier against moisture. It inhibits the entry of external moisture and prevents the loss of moisture from the packaged products. Moisture can negatively affect the texture, taste, and quality of food items, and it can also impact the stability and efficacy of pharmaceutical products. The moisture barrier properties of the film help in maintaining the integrity and longevity of the packaged goods.
3. Light Barrier: The film provides an effective barrier against ultraviolet (UV) and visible light. Exposure to light can cause degradation of food products by inducing photochemical reactions or promoting the growth of unwanted microorganisms. Pharmaceutical products are also sensitive to light, with certain drugs being susceptible to degradation upon exposure. The light barrier properties of the film protect the enclosed goods from harmful light radiation, thereby preserving their quality and efficacy.
4. Chemical Resistance: The Composite Pet/PE PVC/PE Film exhibits excellent chemical resistance, meaning it is impervious to the migration of chemicals from external sources. This is particularly important for food and pharmaceutical packaging, as contact with certain chemicals can contaminate the packaged items, compromising their safety and quality. The chemical resistance of the film ensures that the packaged products remain unaffected by external environmental factors, providing a safe and reliable packaging solution.
5. Tamper-evident: In addition to its barrier properties, the Composite Pet/PE PVC/PE Film offers tamper-evident features, making it an ideal choice for food and pharmaceutical packaging. The film can be designed with seal layers that show visible signs of tampering upon opening, such as irreversible print damage or seal breakage. This provides an indication to consumers and end-users that the packaged items may have been compromised, ensuring product integrity and safety.
