Manufacturers and packagers of refrigerated or frozen foods
can provide hermetically sealed protection against contaminants and more
accurately regulate the in-home cooking process with a unique one-way steam
valve system from Avery Dennison.
The Flexis steam valve system
proprietary design that provides a hermetic seal when applied over a pre-cut
hole in flexible packaging or lidding film. During the cooking process, the
valve opens at a predetermined temperature and allows steam to escape by
exposing the structure’s slitted or perforated baffle layer. Flexis can be used
in both microwave and conventional oven applications.
The steam valves are transparent, offer excellent contact
clarity and can be printed with text, graphics and logos in one color. The
company claims that the technology provides a hermetic seal and permits the use
of thinner films versus microperforated materials.