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Stretchable plastic film useful for packaging food products, comprises three layers i.e. two outer layers of low density polyethylene and an intermediate layer of high stretchable polyethylene
Stretchable plastic film useful for packaging food products, comprises three layers i.e. two outer layers of low density polyethylene and an intermediate layer of high stretchable polyethylene
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机译:用于包装食品的可拉伸塑料薄膜包括三层,即两个低密度聚乙烯外层和一个高拉伸聚乙烯中间层
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摘要
Stretchable plastic film, for packaging food products, comprises three layers (1a, 1b, 1c), the two outer layers being of low density polyethylene, while the intermediate layer is of high stretchable polyethylene mixed with components to provide a sticky effect to the film by avoiding the formation of vapor. An independent claim is included for the manufacturing process of the film (F), comprising stretching the film, after leaving from an extruder to make different layers, in two successive steps with a stretch ratio of the first step being higher than that of the second step.
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