Tætningsfilm

Tætningsfilm, often translated as sealing film or barrier film, refers to a type of flexible material used to create a seal or barrier against various substances, gases, or moisture. It is commonly employed in packaging applications to protect products from environmental factors and extend their shelf life. The specific properties of tætningsfilm can vary greatly depending on its composition and intended use.

These films are typically made from polymers such as polyethylene, polypropylene, polyester, or co-extruded multi-layer materials. The choice of material is critical for achieving the desired barrier properties. For instance, some films are designed to be highly impermeable to oxygen and moisture, which is crucial for preserving perishable goods like food. Others may be engineered for their strength, puncture resistance, or ability to withstand extreme temperatures.

Tætningsfilm can be found in a wide array of products. In the food industry, it is used for sealing trays, pouches, and lids to maintain freshness and prevent contamination. In the medical field, sterile packaging often utilizes specialized tætningsfilm to ensure the integrity of medical devices and pharmaceuticals. It also plays a role in industrial packaging, providing protection for goods during transit and storage. The manufacturing process often involves extrusion and lamination techniques to create films with specific performance characteristics.