Method of forming a plastic film construction

Details Method of forming a plastic film construction Method of forming a plastic film construction

1985-05-20

1987-06-23

Spruill, Robert L.

Manufacturing container or tube from paper; or other manufacturi

With cutting, breaking, tearing, or abrading

And with bending

493462, B31F 100

Patent

active

046749993

ABSTRACT:
A method of folding large sheets of tubular plastic film or slit tubular plastic film wherein the longitudinal edges of the plastic film are folded back over a surface of the film about 180.degree. to an imaginary longitudinal line drawn substantially through the center of a surface of the film and then forming the so-folded sheet into a roll and a roll of greenhouse film folded in the foregoing manner.

REFERENCES:
patent: 2006511 (1935-07-01), Parsons
patent: 2068167 (1937-01-01), Dwight
patent: 2362771 (1944-11-01), Remington et al.
patent: 2553923 (1951-05-01), Lambert
patent: 2666840 (1954-01-01), Poirier
patent: 2801018 (1957-07-01), Yount
patent: 4231210 (1980-11-01), Nagode
patent: 4483127 (1984-11-01), Forkner

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