Plastic packaging film is commonly made from polyethylene (PE), such as LDPE or LLDPE. It offers flexibility, transparency, moisture resistance, and reliable heat-sealing performance.
Depending on the application, the film can be produced as a single-layer structure or combined with other materials to improve strength, printability, and barrier properties.
Important technical parameters include film thickness, tensile strength, elongation, puncture resistance, haze, coefficient of friction, and heat-seal strength.
Material selection should be based on the packaged product, processing method, storage conditions, and applicable safety requirements.
The exact polymer grade and suitability for food contact should always be confirmed through technical specifications and test reports.