Package making – Methods – With contents treating
Patent
1987-11-30
1989-09-19
Spruill, Robert L.
Package making
Methods
With contents treating
53485, B65B 3102
Patent
active
048669113
ABSTRACT:
A continuous method of enclosing a proteinaceous product in a vacuumized and hermetically sealed package having a peelable hermetic reclosure and having a body member of semi-rigid preformed plastic with a first planar marginal portion and a central portion shaped to provide a packaging chamber. The package also has a flexible dimensionally stable base member having a corresponding second planar marginal portion and a central portion to provide a closure for said packaging chamber. The method requires placing a sufficient quantity of proteinaceous product in the central portion of the body member to substantially fill the central portion when the package is completed, positioning the first planar marginal portion face-to-face to the corresponding second planar marginal portion, vacuumizing the assembly, and hermetically sealing the package. The improvement is applying an adhesive to either the first planar marginal portion to provide at least a portion of the hermetic seal wherein said adhesive is a high molecular weight pressure sensitive hot melt adhesive having a viscosity of between 5,000 to 100,000 centipoise at 300.degree. F. and said adhesive provides a peelable hermetic reclosure.
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Food and Drug Packaging, Sep., 1987, p. 18, "Tape Strip Reseals Bags to Keep Tortillas Fresh".
Cornish Darrell G.
Griesbach Ray H.
Grindrod Paul E.
Bianca Beth
Donovan Daniel J.
Harcarik Joseph T.
Oscar Mayer Foods Corporation
Savoie Thomas R.
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