Abstract: A removable membrane, or cover, for a disposable food container includes a membrane portion at least partially defined by a circular outer perimeter edge. The removable membrane further includes a truncated tab portion projecting radially outward of the outer perimeter edge of the membrane portion. The truncated tab portion is at least partially defined by a first lateral edge and a second lateral edge, with each of the first and second lateral edges converging as the tab portion extends away from the outer perimeter edge of the membrane portion. The tab portion is further defined by a forward edge that extends along a straight line between the first lateral edge and second lateral edge, wherein the forward edge is disposed at an oblique angle relative to the first lateral edge and the second lateral edge.

Abstract: A device for closing a food container that includes a barrier substrate that sufficiently inhibits oxygen and moisture transfer therethrough and that has a portion of a first major surface coated with a functional layer that comprises a thermoplastic adhesive and a release agent. The release agent operational such that the lid is incompatible at least with conventional shrink wrap film (LDPE) during a conventional heat shrinking process.