Abstract: Disclosed are multi-layer films having improved adhesion between layers. A film layer comprising vinylidene chloride copolymer is directly adhered to a film layer comprising a blend of ethylene/butyl-acrylate copolymer with linear ethylene/alpha-olefin copolymer.

Abstract: A pasteurizable, cook-in shrink bag is provided that comprises a first or sealing and food contact layer composed of propylene homopolymer or copolymer; a second or heat shrinkable layer composed of a blend of propylene homopolymer or copolymer and butylene homopolymer or copolymer; a third or adhesive layer composed of ethylene methacrylate copolymer; a fourth or barrier layer composed of vinylidene chloride copolymer; a fifth or adhesive layer as in said third layer; and a sixth or optical clarity layer as in said first layer; further provided that the foregoing bag structure is oriented and irradiated to a dose of about 4-12 megarads after orienting or alternatively, though less preferred, to about 6-12 megarads before orienting. Associated method for making said bag is also provided.

Abstract: The invention comprises an oriented multi-layer film having a different orientation distribution between at least two layers and a novel process for forming oriented multi-layer films having a different orientation distribution between the layers. An important feature is the formation of a first tubular layer which is folded and fed into the interior of a second tubular layer of smaller diameter. Upon inflation of the inner tubular layer of larger diameter to its maximum unstretched diameter the smaller diameter outer tubular layer will be stretched and will also be oriented if the stretching occurs while the temperature of the smaller diameter outer tubular layer is maintained within the orientation temperature range of that material.

Abstract: A heat sealable and shrinkable, coextruded, multi-layer packaging film having a propylene homopolymer base layer and a skin layer of a preferred blend of 60% to 80% propylene-ethylene copolymer with propylene homopolymer provides a sealing temperature range of up to 30.degree. C.

Abstract: A wicketed bags packet is provided that comprises a stack of flattened, flexible plastic bags having two wicket holes therethrough; wicket shanks extending through said wicket holes respectively; and elongate, flexible binding members crossed in an under-to-over pattern between said shanks and forming a handgrip for said packet, each said binding member being affixed to a shank, respectively, at the rear of said stack and extending to and being removably and reclosably affixed to the other of said shanks at the front of said stack. An associated method for dispensing wicketed bags is also provided.

Abstract: The invention deals with means for producing a manifold for a strutted film. In particular, the connection of a plastic tubular conduit to a strutted film to form a fluid tight communication between the strut passageway and the interior of the conduit is disclosed. The present method is especially advantageous where the struts of the strutted film, as a result of their method of manufacture, are not readily heat sealable. Where necessary, the method may also be applied to provide a manifold for a group of individual tubes.

Abstract: A method is provided for enhancing yield of a cook-in packaged food product that includes first providing an adhering cook-in package comprising a flexible plastic container being substantially conformable to a selected food product and having an inner surface of polymeric olefin having been subjected to an adhering surface treatment in the presence of oxygen, then conforming said package about a selected food product and cooking the packaged product, whereupon said inner package surface adheres to said food product to substantially prevent cook-out of fluids therefrom.

Abstract: An easy-open pack is formed by (a) pre-cutting a corner of a film panel which, in the finished pack, forms one panel to be sealed against another panel around the periphery of a product article to close the pack, and (b) carrying out the sealing operation while holding the tab formed by said pre-cut corner displaced away from contact with the other film panel, preferably by folding the tab back on itself, more preferably while tack sealing it in said folded configuration.

Abstract: Disclosed is a multi-layer, heat shrinkable, thermoplastic packaging film which can be heat sealed to itself to provide strong seals at pasteurizing temperatures. The preferred film has four layers including, in order, a sealing surface layer comprising a blend of propylene-ethylene copolymer and (butene-1)-ethylene copolymer, a layer comprising ethylene-vinyl acetate copolymer which may be cross-linked to further increase high temperature strength of the film as desired; a relatively gas impermeable layer comprising a copolymer of vinylidene chloride; and, a surface layer of the same blend as the sealing layer. Receptacles such as end seal and side seal bags can be made from the film at a faster rate than with prior art films and these receptacles have the high temperature seal qualities of propylene polymers and the hot water shrink capabilities of ethylene polymers.

Abstract: A blow molded single-walled closable container having a compression molded hinge portion is produced by closing a blow mold with a restricted central portion about a parison so as to form two hinge portions and severing the thus formed article into two sections with each of the sections forming a closable container having a top portion and a bottom portion connected by a hinge portion.

Abstract: Large blow molded objects are produced by extruding a generally tubular form in a horizontal direction so as to form a large pillow shaped object upon sealing. The sealed pillow shaped article is severed and conveyed to a mold having a predetermined configuration and blow molded into a desired shape. The horizontal production of the parison used for blow molding permits the production of large parisons without the sag associated with a vertical process and also permits continuous coextrusion of large parisons without the need for complex accumulating equipment.

Abstract: Disclosed is a method and apparatus for loading articles, particularly meat articles, into containers. The apparatus comprises two groups of movably mounted beams cantilevered in a direction of article progression. One group of beams is movable in a vertical direction while the other group of beams is movable in a horizontal direction. The movement of the beams is synchronized to provide for article movement in the desired direction. The terminal portions of both sets of beams are unconnected and spaced apart so as to provide a spaced relationship between the group of beams to permit the insertion of a container over the terminal portions of the beams.

Abstract: Bags are dispensed from a stack of bags by locating the stack of bags on a dispensing surface and elastically pinching the stack of bags to the dispensing surface with an elastic compression means. The bags are thus capable of being removed from the stack one at a time without otherwise disrupting the stack.

Abstract: In a blow molded container having a base and a lid, a hinge formed of the molding material and defined in part by integral journals depending from opposite sides of the lid and integral pins extending from opposite sides of the base adapted to interfit with the integral journals.