초록 ▼

A packaged article, especially a respiring foodstuff such as cheese which generates or releases gas during storage, and a permeable multilayer biaxially oriented film suitable for allowing escape of such gas while minimizing transfer of oxygen across the film which has a thin layer of a blend of EVO

A packaged article, especially a respiring foodstuff such as cheese which generates or releases gas during storage, and a permeable multilayer biaxially oriented film suitable for allowing escape of such gas while minimizing transfer of oxygen across the film which has a thin layer of a blend of EVOH and nylon. In a preferred embodiment the low cost film having a high permeability to CO.sub.2 and low O.sub.2 permeability is used to package cheese.

대표청구항 ▼

[ What is claimed is:] [1.]1. A multilayer cheese packaging film having a thickness of less than 10 mils and comprising a first outer layer;a core layer having a thickness of from about 0.05 to less than 0.10 mils comprising a blend of about 20-70 wt. % of nylon 6/66 copolymer and about 30-80 wt. %

[ What is claimed is:] [1.]1. A multilayer cheese packaging film having a thickness of less than 10 mils and comprising a first outer layer;a core layer having a thickness of from about 0.05 to less than 0.10 mils comprising a blend of about 20-70 wt. % of nylon 6/66 copolymer and about 30-80 wt. % of an EVOH copolymer having a melting point of about 158.degree. C. or lower;a protective second outer layer; andfirst and second adhesive layers;wherein said core layer is between said first and second adhesive layers with (1) said first adhesive layer being adhered to a first surface of said core layer, said first adhesive layer being located between said first outer layer and said core layer, and (2) said second adhesive layer being adhered to an opposing second surface of said core layer, said second adhesive layer being located between said protective second outer layer and said core layer; and wherein said film is heat shrinkable at 90.degree. C.