Binding for soft cover books

Details Binding for soft cover books Binding for soft cover books

B - Operations, Transporting

42

C

B42C 9/00 (2006.01) B42D 1/02 (2006.01) B42D 1/06 (2006.01)

Patent

CA 2077725

BINDING FOR SOFT COVER BOOKS ABSTRACT A book binding process and apparatus are shown wherein polyurethane adhesive (PUR) attaches a crepe portion of a book binding to a book block and hot glue attaches the crepe portion to the book cover. The PUR delivery system includes an inclined trough positioned adjacent a polyurethane adhesive delivery roll. A polyurethane adhesive source delivers polyurethane adhesive upon the inclined surface of the trough and the polyurethane adhesive is metered onto the roller as a function of the separation of the leading edge of the trough and the roller.

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