MULTILAYERED, BIAXIALLY ORIENTED FOOD CASING COMPRISING TWO OXYGEN-BARRIER LAYERS

摘要

The invention relates to an at least four-layer tubular biaxially oriented food casing having an outer layer which essentially consists of a mixture of in each case at least one aliphatic and one partly aromatic (co)polyamide with or without pigments, and an inner layer which essentially consists of aliphatic (co)polyamide, wherein, between these layers, a layer of an ethylene/vinyl alcohol copolymer or a blend of the ethylene/vinyl alcohol copolymer with an aliphatic or partly aromatic (co)polyamide and/or with an olefinic (co)polymer and/or an ionomer resin and a layer which essentially consists of an olefinic (co)polymer with or without coupling agents, pigments and/or UV absorbers are arranged. The casing has a high water-vapor and oxygen barrier. It is particularly suitable as synthetic sausage casing, but can also be used for packaging cheese or animal feed.