Flexible bags – With closure – Gathered bag mouth
Patent
1988-05-19
1989-03-21
Little, Willis
Flexible bags
With closure
Gathered bag mouth
383 76, B65D 3328
Patent
active
048137944
ABSTRACT:
A thermoplastic draw tape bag having a tacky coating on the draw tape at the secured end thereof and extending for a fraction of the length of the draw tape. The tacky coating comprises a material having the characteristic of sticking to itself and being adapted to cling to the inside of the hem when the uncoated length of the draw tape is withdrawn from the hem causing the hem to gather and hold the bag closed after the draw tape is pulled tight thereby preventing the bag from inadvertently coming open. The tacky coating on the draw tape may comprise a coating of glycerol mono-oleate or a layer of polyvinylidene chloride or a layer of polyisobutylene.
REFERENCES:
patent: 3029853 (1962-04-01), Piazze
patent: 3547341 (1970-12-01), Kirkpatrick
patent: 3738568 (1973-06-01), Ruda
patent: 4260003 (1981-04-01), Hendrickson
patent: 4624654 (1986-11-01), Boyd et al.
Little Willis
McKillop Alexander J.
Mobil Oil Corporation
Speciale Charles J.
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