Active packaging plus layer multiplier equals film with immeasurable performance

04/28/2011

Active packaging and microlayer extrusion come together in the new "active microlayer" film technology where layer multiplication is applied not only to the barrier polymer but also to active components such as oxygen absorbers or desiccants. Flat-die manufacturer Extrusion Dies Industries LLC (EDI) says the patent-pending technique adds a new dimension of oxygen and moisture control to food packaging, with the company feeling that it will extend barrier properties beyond the limits of standard test procedures.

EDI has already demonstrated that dividing and recombining the barrier layer to create many micro-barrier layers can significantly increase the shelf life of retort and hot-fill containers, stand-up pouches, and vacuum skin packaging. Now researchers at EDI's Technology Center have gone further and incorporated active components in layers outside the barrier core and then multiplied those layers as well....
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