Paper roll width reduction

Details Paper roll width reduction Paper roll width reduction

1998-01-13

2000-02-29

Kim, Eugene L.

Manufacturing container or tube from paper; or other manufacturi

With cutting, breaking, tearing, or abrading

And with bending

493357, 493399, 83332, B31B 4900

Patent

active

060303301

ABSTRACT:
A method and apparatus are provided for producing a signature having a backbone fold defining a closed end and an intermediate fold transverse to the backbone fold using a reduced width of paper coming from a roll. The method and apparatus reduce gusset wrinkles adjacent the folds by slitting ribbons formed from the paper web along a trail edge and a lead edge of a closed end forming the signature. Preferably, the slitting operation leaves an uncut portion of the closed end of the signature extending across the intermediate fold from a side edge to the trail edge to stabilize the ribbon at the area to receive the intermediate fold. The lead edge and trail edge are slit very substantially to expose long areas of fibers for gluing to form a book backbone.

REFERENCES:
patent: 3843113 (1974-10-01), Schaffer
patent: 5144874 (1992-09-01), Garrett
patent: 5230268 (1993-07-01), Richter
patent: 5535996 (1996-07-01), Dancause

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