Abstract: A preformed bag-like enclosure formed of heat shrink plastic film for shrink wrapping pallet loads or the like, the enclosure being generally tubular or sleeve-like in shape and provided with a reduced size opening at the top to prevent the enclosure from slipping down over the load to be wrapped prior to the application of heat for shrinking. In one embodiment the top opening is reduced in size by tapering same using upwardly and inwardly extending heat seals, in another by providing transversely extending heat seals and in further ones by providing inwardly spaced spot welds. Methods of fabrication of the latter type are also disclosed.

Abstract: A preformed bag-like enclosure formed of heat shrink plastic film for shrink wrapping pallet loads or the like, the enclosure being generally tubular or sleeve-like in shape and provided with a reduced size opening at the top to prevent the enclosure from slipping down over the load to be wrapped prior to the application of heat for shrinking. In one embodiment the top opening is reduced in size by tapering same using upwardly and inwardly extending heat seals, in another by providing transversely extending heat seals and in further ones by providing inwardly spaced spot welds. Methods of fabrication of the latter type are also disclosed.

Abstract: A method of utilizing a shrink wrap film to shrink wrap or bundle a load of articles or packages having a surface portion formed of the same material as the shrink wrap film. The load is assembled and wrapped with a laminate comprising an outer ply formed of the shrink wrap film and an inner barrier film formed of a material which will not fuse to any part of the load or said portions when subjected to film-shrinking heat. The wrapped load is thereafter heated to shrink the laminate about the load. Also disclosed is the resultant package, as well as several different laminates which may be used.