Multiple ply bag with detachable inner seal pouch for packaging

Details Multiple ply bag with detachable inner seal pouch for packaging Multiple ply bag with detachable inner seal pouch for packaging

1993-05-26

1994-01-25

Shoap, Allan N.

Flexible bags

With closure

Bag walls designed to be rolled together or folded on common...

383 94, 383109, 383111, 383113, B65D 3008

Patent

active

052810275

ABSTRACT:
A tubular bag blank has a plurality of outer contiguous non-heat sealable plies and an inner heat sealable plastic ply. All of the plies in the tubular blank are bonded together circumferentially around an open top end of the bag and are closed at the bottom end where only the non-heat sealable plies are bonded together. The inner heat sealable ply is freely folded and fully detachable in a non-adhesive manner at the bottom end of the bag. The inner plastic ply being heat sealable to closure at both bag ends. Upon heat sealing the bottom end, a plastic pouch is formed by the inner ply which may be heat sealed to closure at the open end when filled with a product or commodity and may be optionally severed thereat by compressive heat and pressure applied to the outer non-heat sealable plies. When fully packed, the outer paper plies may be stripped away leaving a sealed plastic pouch with the packaged contents therein ready for use by the purchaser.

REFERENCES:
patent: 2975955 (1961-03-01), McCurry
patent: 3807626 (1974-04-01), Goodrich
patent: 3910488 (1975-10-01), Goodrich
patent: 3927825 (1975-12-01), Stearly
patent: 3929275 (1975-12-01), Bolling et al.
patent: 3958749 (1976-05-01), Goodrich
patent: 4065049 (1977-12-01), Achelpohl et al.
patent: 4088264 (1978-05-01), Vogt
patent: 4498192 (1985-02-01), Becker et al.

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