Adhesive binding method and device for carrying out this method
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Nov 30, 2010
Grant Date -
Feb 8, 2007
app pub date -
Sep 9, 2004
filing date -
Sep 9, 2003
priority date (Note) -
Expired
status (Latency Note)
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Abstract
In order to produce an adhesive binding for bookbinding, in which the sheets, in letter paper format, are perforated on the folding edge, folded, provided with adhesive on the folding edge and assembled to form a book block, the perforating process is carried out on the folding edge in such a manner that two interrupted perforation lines are punched, these perforation lines being parallel at a short distance from one another, offset in a longitudinal direction and forming a widened folding edge. The punch locations of both perforation lines are, along the folding edge, offset by the length of one perforating tooth. The sheets, which are folded on the folding edge and which are assembled and squeezed to form a book block, are provided with the application of adhesive on surfaces, which are formed by the double perforating and which are assigned to one another, between full locations of one perforation line and full locations of the other perforation line.
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