Active microlayer technology

 A patent-pending technique developed by Extrusion Dies Industries, LLC (EDI) adds a new dimension of oxygen and moisture control to food packaging, likely extending barrier properties beyond the limits of standard test procedures. Called "active microlayer" technology, the technique combines the concepts of active packaging and microlayer extrusion, yielding film and sheet in which layer multiplication is applied not only to the barrier polymer but also to active components such as oxygen absorbers or desiccants. Previous research by EDI has demonstrated that by dividing and recombining the barrier layer to create many micro-barrier layers, it is possible to increase significantly the shelf life of retort and hot-fill containers, stand-up pouches, and vacuum skin packaging. Researchers at EDI have gone a step further by incorporating active components in layers outside the barrier core, then subjecting those components to layer multiplication as well. The combined protection of food contents by multiple—even dozens—of barrier and active layers appears to be greater than standard tests for oxygen and moisture ingress are designed to measure, according to Gary D. Oliver, vice president of technology. EDI plans to produce samples for a new battery of tests at its Technology Center and then have the results confirmed by an outside laboratory.
EDI Precision Dies (Shanghai) Co., Ltd.
Tel: +86-21 578 80918
Fax: +86-21 57 80698
E-mail: edishanghai@extrusiondies.com
Website: www.extrusiondies.com
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