Roll stock for use in manufacture of bag

Details Roll stock for use in manufacture of bag Roll stock for use in manufacture of bag

1980-02-25

1982-08-03

Thibodeau, Paul J.

Stock material or miscellaneous articles

Structurally defined web or sheet

Edge feature

428189, 428211, 428212, 428906, B32B 302, B32B 2900

Patent

active

043428088

ABSTRACT:
Roll stock specifically designed for use in making a paper bag using automatic bag making machinery is provided wherein a first pair and a second pair of bands of adhesive material of a type which is inactive to form a bond until placed in contact with an adhesive of the same type are applied to the inner and outer faces of the web adjacent said edges thereof. The bands of the first pair are laterally spaed with respect to the bands of the second pair so as to be out of alignment with one another in successive turns of the roll stock such that the successive turns are not adhesively secured to one another. An empty square bottom bag is provided which consists of a front wall, a back wall and a bottom wall formed from a unitary panel and including a band of adhesive on the outer face of said panel extending along the marginal edge portion of each side panel, the panels being folded inwardly so that the band of adhesive on one side panel is disposed at an interface with another side panel and thereby secures the side wall panels with respect to one another in an overlapping relationship to close opposite sides of the bag and retain front, bottom and back walls in an open U-shaped configuration.

REFERENCES:
patent: 2096351 (1937-10-01), Semonsen
patent: 2503680 (1950-04-01), Newman
patent: 2589202 (1952-03-01), Newman
patent: 3138476 (1964-06-01), Phipps

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