METHOD AND APPARATUS FOR PREPARING BOOK COVERS

摘要

Apparatus and method are disclosed for preparing a preprinted book cover for application to a book block in a perfect binding system. A double-walled tubular attachment strip (11) is adhesively attached to the spine portion of successive covers (22) in a continuous process. Covers are fed onto a conveyor (21) at a constant speed with a spacing between the covers and adhesive is applied to the spine areas. Simultaneously double-walled attachment strip (11) with a longitudinal lap joint in one wall is formed from a source of paper web stock (9) and pressed, lap joint down, onto the cover spines to form continuous string of covers. The attachment strip is cut by laser beam between each cover while the covers are moving. The attachment strip is formed by pulling the web under tension through scoring wheels (16) and forming device (2).