Transparent, deepdrawable and easysealable Film with UV barrier properties and its use as food packaging material

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.