Retortable pouch and packaging material for the retortable pouch

Details Retortable pouch and packaging material for the retortable pouch Retortable pouch and packaging material for the retortable pouch

1987-04-06

1988-11-22

Marcus, Stephen

Special receptacle or package

Laminate sheet packet

With gas permeable cover

206632, 229 35MF, 383111, 426126, 428 40, 428461, 428 353, B65D 6590

Patent

active

047859377

ABSTRACT:
A packaging material for a retortable pouch comprises a laminated base film formed by laminating together a polyester film and an inelastic polypropylene film, a laminated cover film formed by laminating together a polyester film and an aluminum foil, and an adhesive layer detachably bonding the polyester film of the laminated base film to the aluminum foil of the laminated cover film, thereby laminately bonding the laminated cover film to the laminated base film. When the retortable pouch is heated in a microwave oven, the laminated cover film having the aluminum foil is removed from the laminated base film, whereby microwaves generated by a magnetron are not intercepted, and cooked food packaged in the retortable pouch can be heated adequately.

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patent: 4623587 (1986-11-01), Ho et al.
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