초록 ▼

A composite film and vacuum skin package for packaging a product such as a fresh red meat is disclosed. The composite film is thermoformed and sealed under vacuum to a support member to completely enclose a product which is positioned on the support member. The composite film is a permeable film wea

A composite film and vacuum skin package for packaging a product such as a fresh red meat is disclosed. The composite film is thermoformed and sealed under vacuum to a support member to completely enclose a product which is positioned on the support member. The composite film is a permeable film weakly bonded to an impermeable film, permitting the impermeable film to be peeled from the package while leaving the permeable film intact so that the fresh red meat product can bloom from a purplish color to a desirable red color upon exposure to oxygen. The permeable and impermeable films are fully peelable without the need for a migratable wax to enhance peelability.

대표청구항 ▼

[ What is claimed is:] [1.] A vacuum skin packaging composite film comprising a permeable film and an impermeable film which is peelably removable from said permeable film, said permeable film comprising a single semi-adherent layer that is peelably adhered to said impermeable film at a peel force r

[ What is claimed is:] [1.] A vacuum skin packaging composite film comprising a permeable film and an impermeable film which is peelably removable from said permeable film, said permeable film comprising a single semi-adherent layer that is peelably adhered to said impermeable film at a peel force ranging from about 0.02 to 0.05 pounds/inch, a sealant outer layer and a core layer positioned between said sealant outer layer and said semi-adherent layer, wherein the core and the sealant layers are different from the semi-adherent layer, wherein said semi-adherent layer comprises an adhesive blended with a polymer selected from the group consisting of polypropylene and ethylene propylene copolymer and further said semi-adherent layer contains less than 0.45 weight percent migratable waxes.