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Multilayer extruder improves films

A state-of-the-art blown film extruder capable of producing up to 14-layer films with EVOH and PA as barrier material has been started up by Mondi Napiag in Zeltweg, Austria. Supplied by Windmöller & Hölscher, it will be used mainly for food packaging.

First tests and production runs are said to have shown that the new material features considerably higher gloss and transparency than other films. This “eye-catching appearance” is accompanied by increased puncture and tear resistance, leading to an increased protection of sharp-edged food, such as bread rolls or bacon.

The novel 7 or 14-layer high barrier films are also said to give a high level of aroma protection and an extended shelf life.

Apart from the new extruder, Mondi Napiag’s operation has six 5-layer extruders.

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Windmöller & Hölscher