Partially metallized film having barrier properties

A partially metallized packaging film and method of making is disclosed. In one aspect, at least one portion of a vaporized metal stream is shielded from contacting a sheet of packaging film during the metallization process. The shield is a rigid plate and can be shaped to provide a sharp transition...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: TUCKER STEVEN KENNETH, BEZEK EDWARD ANTHONY, KNOERZER ANTHONY ROBERT
Format: Patent
Sprache:chi ; eng
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Beschreibung
Zusammenfassung:A partially metallized packaging film and method of making is disclosed. In one aspect, at least one portion of a vaporized metal stream is shielded from contacting a sheet of packaging film during the metallization process. The shield is a rigid plate and can be shaped to provide a sharp transition from transparent film to opaque film, or it can provide a gradual transition from transparent film to opaque film. The partially metallized packaging film can be used with a form, fill and seal machine or other packaging machine to create a food package with a product viewing window. In one aspect, the barrier web comprises a bio-based film.