Minutely cross channeled voiding sealing systems

A method for cross sealing of a packaging material tube through an intermediate layer of plastic comestible comprising the steps of

• providing a longitudinally continuous body of the plastic comestible to be packaged which is continuously surrounded by a packaging film comprising a plurality of at least two layers including an inner sealing layer of relatively low thermoplastic melt temperature, and an outer layer which does not melt under sealing conditions to provide a film tube wrapped comestible,
• transversely compressing said film tube between a rigid, minutely cross channeled sealing surface having a cross channel density of at least about 15 channels per inch, said channels having a depth in the range of from about 0.005 inch to about 0.020 inch and a width in the range of from about 0.01 inch to about 0.03 inch, and said channels providing therebetween a density of at least about 500 discrete sealing surfaces per square inch comprising at least about 30 percent of the total surface area of said cross channeled sealing surface, and an elastomeric voiding surface at a pressure in the range of from about 150 to about 600 pounds per square inch to displace the comestible from the zone between the channeled sealing surface and the elastomeric voiding surface, whereby the eleastomeric voiding surface forces the packaging material at least partially into the channels of the minutely channeled cross sealing surface to stretch the film and to pump the comestible along the channels into the package zone adjacent the cross-channeled sealing surface, and to cross seal the internal surfaces of the packaging material, and
• severing the film tube at the cross seal.