FFS film, or Form-Fill-Seal film, is a specialized flexible packaging material engineered for use on automated form-fill-seal (FFS) machinery. These films are central to creating a package in a single, integrated process where the film is formed into a pouch or bag, filled with the product, and then hermetically sealed.

Flexible packaging refers to packaging materials that can readily change shape when filled or closed. Unlike rigid packaging (such as glass bottles or metal cans), flexible packaging is manufactured from pliable materials like polyethylene (PE), and other polymer films that offer exceptional versatility, lightweight properties, and cost efficiency.