Flexible bags – Bag closure secured by a releasable or frangible bond – Adhesive bond
Patent
1997-08-18
1998-08-11
Pascua, Jes F.
Flexible bags
Bag closure secured by a releasable or frangible bond
Adhesive bond
383 95, 383903, B65D 3318
Patent
active
057917833
ABSTRACT:
An adhesive closure including an adhesive strip affixed transversely across a first inner surface of a front wall of a bag at a preselected distance from the opening of the bag; and a flexible flap member strip affixed transversely across a second inner surface of a rear wall of the bag aligned on the wall opposite from the adhesive strip. The flexible flap member is attached to the inner surface of the wall along one edge of the flexible flap member. The flexible flap member is pressable against and into the adhesive strip, whereby a seal is formed by contacting the adhesive strip with the flexible flap member. The flexible flap member is adapted to provide a shear opening force from the inside of the bag when the flap member is contacting the adhesive strip, and adapted to provide a peel opening force from the outside of the bag when the flap member is contacting the adhesive strip. The peel opening force is smaller than the shear opening force, thereby providing an enhanced burst strength to the bag.
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Dais Brian C.
Porchia Jose
Dowbrands L.P.
Pascua Jes F.
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