Vacuum package with smooth surface and method of making same

Details Vacuum package with smooth surface and method of making same Vacuum package with smooth surface and method of making same

1988-09-07

1990-08-21

Coan, James F.

Package making

Methods

With contents treating

53411, 53415, 206525, 426410, B65D 3008

Patent

active

049495291

ABSTRACT:
A vacuum package is made of flexible laminate capable of being stored as roll stock. The laminate comprises laminated inner and outer layers providing desired mechanical properties, secured together at patterned areas to facilitate the passage of gas between the layers, and is provided with a hand peelable sealing strip at an area which, when the laminate is formed into a bag and the mouth sealed, extends around the periphery of the mouth of the package. When the laminate is formed into a bag, the application of vacuum to the interior of the bag results in the inner layer conforming to the contours of the contents, while ambient air between the layers enables the outer layer to maintain a desirable and aesthetically pleasing smooth surface texture.

REFERENCES:
patent: 4172152 (1979-10-01), Carlisle
patent: 4190158 (1980-02-01), Ambrose
patent: 4488647 (1984-12-01), Davis
patent: 4667453 (1987-05-01), Goglio
patent: 4727706 (1988-03-01), Beer
patent: 4734292 (1988-03-01), Van Boxtel

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