Method and apparatus for folding a cover strip over a multi-ply

Details Method and apparatus for folding a cover strip over a multi-ply Method and apparatus for folding a cover strip over a multi-ply

1982-03-22

1983-12-13

Heinz, A. J.

Sheet-material associating

Associating and folding

Longitudinal web folding

493439, B41L 4304

Patent

active

044201486

ABSTRACT:
A composite strip is formed, during a folding step, from a continuous cover strip folded around a continuous, multi-ply inner strip. The cover strip has longitudinally spaced transverse slits therein and is tensioned during the folding step. A sharp, neat fold is obtained without transversely tearing the cover strip.

REFERENCES:
patent: 2540844 (1951-02-01), Strauss
patent: 3993299 (1976-11-01), O'Brien
patent: 4066251 (1978-01-01), Johnsen
patent: 4340212 (1982-07-01), Simson

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