Conceptually, making a thin polymer film is an easy proposition—just melt one or more polymers, force the melt through a long, narrow opening, freeze the extruded melt into a solid film, and wind it into a roll.
With a beginning understanding of the attributes desired for a film package, the next step is winnowing down the huge selection of possible polymers to those that offer the best combination of cost and performance for your needs.
While it’s possible to describe a flexible package’s functions in general terms, measurable and quantifiable attributes or properties that relate to these functions will ensure a package is successful for a specific application.
Used to produce a range of multilayer packaging film applications including metallized film, twist film, hot fill, and shrink labels in thicknesses up to 100 microns, TOPAS Advanced Polymers’ 7010F-600 COC is a new film extrusion grade of cyclic olefin copolymer (COC) that delivers a glass transition temperature of 110°C, and strong extrusion capabilities for multilayer food packaging.
Victrex PEEK 90GL30BLK EU from Victrex Polymer Solutions is a new glass-fiber reinforced, high-flow thermoplastic for direct food contact applications that meets the requirements of both American and European regulatory authorities, and offers a safe and durable alternative to metals and other engineering plastics.