When goods are transported at high altitudes, the lower air pressure in aircraft holds causes the packaging to inflate. The increased pressure on the package seal may cause it to pop, a problem that has confronted food packaging companies until recently. Now Toray Plastics (America) has launched a range of biaxially oriented polypropylene (BOPP) films which, when combined with a proprietary sealant, eliminate or significantly reduce high-altitude package popping.
The new range of films, dubbed Over-the-Mountain (OTM) films, are intended for use in food packaging pillows, pouches and stand up pouches. Channel leaks in challenging seal areas are eliminated by using a high-performance sealant that also prevents oils from leaking out of packaging leaving behind greasy residues.
Apart from solving package seal problems, the robust new films allow for 2-ply lamination, helping companies to speed the packaging process while saving costs. Existing BOPP film production line equipment need not be adapted to accommodate the new film.