Plastic film construction

Details Plastic film construction Plastic film construction

1989-08-24

1990-08-14

Robinson, Ellis P.

Stock material or miscellaneous articles

Hollow or container type article

Nonself-supporting tubular film or bag

53429, 53430, 53585, 383 37, 383904, 428 355, 428192, 428220, 428906, B32B 3102

Patent

active

049486381

ABSTRACT:
A roll of greenhouse film which is a large sheet of flattened tubular plastic film wherein the longitudinal edges of the plastic film are folded back over a surface of the film about 180.degree. toward an imaginary longitudinal line drawn substantially through the center of a surface of the film. The so-folded sheet is then longitudinally rolled.

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patent: 4597494 (1986-07-01), Benoit
patent: 4786192 (1988-11-01), Graves et al.

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