초록 ▼

A heat shrinkable film package and a method for packaging food and non-food products is disclosed which includes a valve through which the package is evacuated during the heat shrinking step of the packaging process. Employing the valve of the present invention precludes the need for puncturing the

A heat shrinkable film package and a method for packaging food and non-food products is disclosed which includes a valve through which the package is evacuated during the heat shrinking step of the packaging process. Employing the valve of the present invention precludes the need for puncturing the film prior to heat shrinking. Thus, a wide variety of food products may be packaged in a manner more typically reserved for non-food products.

대표청구항 ▼

1. A shrink film package comprising:a product; at least one web of a shrink film wrapped about the product; at least one seal defined in the shrink film enclosing the product; and a polymeric valve sealed to the film at the at least one seal, the valve comprising a tube of film having a first end ex

1. A shrink film package comprising:a product; at least one web of a shrink film wrapped about the product; at least one seal defined in the shrink film enclosing the product; and a polymeric valve sealed to the film at the at least one seal, the valve comprising a tube of film having a first end extending into the package, a second end extending out of the package, and an intermediate portion within the at least one seal, the valve further comprising an exterior surface and an interior surface, wherein the exterior surface comprises a sealable polymeric material whereby the intermediate portion of the exterior surface is sealed to the shrink film at the at least one seal and wherein the interior surface comprises a nonsealable material at least at the first end and the intermediate portion thereof.