What Is a Lidding Film?
Lidding film is a covering material designed to seal containers. This film finds widespread application across multiple sectors, including food, beverages, and pharmaceuticals. Lidding film consists of substrate materials like plastics or aluminum foil, adhesives for securing the film to the container, and functional additives that modify properties such as the oxygen transmission rate and water vapor transmission rate. Its use is extensive, covering various sectors from food and pharmaceuticals to cosmetics and industrial products.
The production of lidding film involves steps like selecting the appropriate film, tailoring it to fit the container, applying adhesive, and then sealing the film onto the container. Key features of the lidding film include excellent sealability, transparency, resistance to heat and light, and the ability to be printed upon, making it a crucial element in product packaging and preservation.