| 摘要 |
PROBLEM TO BE SOLVED: To increase a bond strength between text papers and a cover paper without damaging openability/closability when forming a booklet.SOLUTION: Notch formation means 131 is provided on an introduction transport path 121 in a bookbinding device 120. When text papers P1 are so laminated by the notch formation means 131 as to form a text paper bundle PS, plural cut-out parts N, which are configured from a front cover side cut-out part N1 and a back cover side cut-out part N2 which have an-up-hill grade from a substantially central part in a thickness direction towards a front cover side and a back cover side of a cover paper P2 along the thickness direction, are formed on the rear face of the text paper bundle PS along a vertical direction of the text paper bundle PS.SELECTED DRAWING: Figure 2 |
