Foldable sheet plastic products and method of manufacture

Details Foldable sheet plastic products and method of manufacture Foldable sheet plastic products and method of manufacture

B - Operations, Transporting

31

F

93/87

B31F 5/00 (2006.01) A45C 11/18 (2006.01) B42D 15/10 (2006.01)

Patent

CA 1185114

FOLDABLE SHEET PLASTIC PRODUCTS AND METHOD OF MANUFACTURE Abstract of the Disclosure An improved foldable sheet plastic construction, employed in a butterfly pouch for use in making plastic laiminated data cards, and in a plastic fan-fold product, both comprising adjacent panels made from a single sheet of plastic material that must be folded along a fold line into parallel facing relation. The fold line has a two-level hinge cut. A major portion of the fold line is cut to a predetermined depth that assures easy folding but may cause separation of adjacent panels; a minor fractional portion of the fold line is cut to a substantially shallower depth to preclude separation of the panels on folding. In the preferred construction, the shallow cut is made at two or more spaced locations along the fold line to provide plural hinges.

405686

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