When it comes to the different types of films, there’s some confusion out there. And like most of our blog posts, we seek to thwart the confusion.
A film is any kind of very thin membrane or barrier film made of plastic. Film can be flexible or rigid. If it’s rigid, it’s called a sheet of film. If it’s flexible, it’s called flexible film. Flexible film is made from resins that once formed is…flexible! This type of film can be used to make various types of bags, pouches, single-serving condiment packets, frozen food film, box liners, and more. Flexible film can be easily bent or crumpled without failure to its integrity or structure.
Flexible film can be extruded from a single polymer to form a single layer. Mono-layer Co-extruded film has had multiple polymers mixed to form a single layer by extrusion. Single or multi polymer, single layers of film can be fused using adhesives or heat to form multilayer flexible films.
Metalized films are polymer films coated with a thin layer of metal, usually aluminium. They offer the glossy metallic appearance of an aluminium foil at a reduced weight and cost. Metallized films are widely used for decorative purposes and food packaging, and also for specialty applications including insulation and electronics.
In general, film has many uses, including lining boxes, mixing with metal to create a shine, composite films with multiple layers, and lamination of paper products. [Read more…] about Clarifying Flexible, Stretch, and Shrink Film