Process and apparatus for applying an adhesive to the interior s

Details Process and apparatus for applying an adhesive to the interior s Process and apparatus for applying an adhesive to the interior s

1989-12-12

1991-03-05

Ball, Michael W.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

156287, 156294, 156423, B29C 6326, B29C 6348

Patent

active

049975021

ABSTRACT:
A process for adhering a polyethylene liner to the interior of a fabric bulk bag, which would include the steps of providing a source of pressurized air flow; attaching the upper pour spout of the fabric bag to the source of air flow; causing the bag to inflate when the bag becomes filled with air; providing a means for applying adhesive to the interior wall of at least a portion of the interior wall of the fabric bag after the fabric has been inflated; providing a valving means for routing a quantity of the pressurized air through a second air flow chamber; providing a plastic liner in the air flow chamber so that as the secondary air flow makes contact with the liner, the liner is forced into the interior of the fabric bag and inflated against the inner surface of the walls of the fabric bag; and adhering the plastic liner to the wall of the fabric bag when the liner makes contact with the adhesive that has been applied to the wall of the fabric bag.

REFERENCES:
patent: 2124853 (1938-07-01), Grupe
patent: 3206074 (1965-09-01), Hoffmann
patent: 4374871 (1983-02-01), Steinbis
patent: 4658989 (1987-04-01), Bonerb
patent: 4946291 (1990-08-01), Schnaars

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