Self-venting microwave packaging
Mondi has introduced SteamPack, microwaveable packaging with a self-venting function, produced with a hot-melt adhesive, for frozen, chilled and ambient-temperature food. It is also suitable for high-barrier modified atmosphere packaging (MAP).
The steam valve can be applied to a multitude of different packaging solutions, such as pillow bags, stand-up pouches, lidding films or VFFS solutions. “Depending on customer requirements, the microwaveable packaging is manufactured from different base materials,” explains James Warren, managing director of Mondi Scunthorpe.
“Our flexible and intelligent concept allows us to use materials with the highest barrier properties for MAP applications. Moreover, the number of micro-holes can be varied to adjust the pressure as needed.”
The laser micro-perforation pattern can also be modified to provide either rows of holes in the machine direction or groups of holes in a fixed position. These packaging solutions can be processed on standard filling machines without the need for any additional investment – reflecting the principle of a plug-and-play system.
