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TRANSPARENT EARLY WELDABLE DEEP-DRAWING PLASTIC FILM EXHIBITING UV RADIATION BARRIER PROPERTIES AND APPLICATION THEREOF AS A PACKAGING MATERIAL FOR ARTICLES OF FOOD
TRANSPARENT EARLY WELDABLE DEEP-DRAWING PLASTIC FILM EXHIBITING UV RADIATION BARRIER PROPERTIES AND APPLICATION THEREOF AS A PACKAGING MATERIAL FOR ARTICLES OF FOOD
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机译:具有紫外线辐射阻隔性能的透明可早期焊接的深拉伸塑料膜及其在食品包装材料中的应用
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摘要
Transparent deep-drawable heat-sealable multilayer film, comprises a polyamide layer and a polyethylene layer with a defined titanium dioxide content. Multilayer film comprises: (a) at least one polyamide film; (b) at least one polyethylene or ethylene copolymer layer containing titanium dioxide (TiO2) with a primary particle diameter of 5-30 nm in an amount such that the multiplication product of the TiO2 content (wt.%) and the layer thickness ( mu m), summed for all TiO2-containing layers, is 5-200; and optionally (c) one or more ethylene/vinyl alcohol copolymer (EVOH) and/or adhesion-promoting layers.
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