Easy-open, hermetically-sealed, packaging bag

Details Easy-open, hermetically-sealed, packaging bag Easy-open, hermetically-sealed, packaging bag

1994-10-19

1996-07-23

Garbe, Stephen P.

Flexible bags

Bag closure secured by a releasable or frangible bond

Having another independent closure for same access opening

B65D 3316

Patent

active

055383459

ABSTRACT:
An easy-open, hermetically-sealed, packaging bag 1 whose opening end is heat-sealed, with a sealing material interposed therein, wherein the sealing material comprises (a) an intermediate resin strip comprising a low-sealable resin layer and (b) two outer resin strips, the outsides of the outer resin strips being strongly bonded to the inside of the packaging bag by heat-sealing and being weakly melt-bonded to both sides of the intermediate resin strip, the innermost ends of the melt-bonded interfaces between the intermediate resin strip and the outer resin strips are located inner in the packaging bag than the innermost ends of the heat-sealed parts between the packaging bag and the outer resin strips.

REFERENCES:
patent: 4518087 (1985-05-01), Goglio
patent: 5330269 (1994-07-01), Kamada et al.

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