| 摘要 |
<p>PROBLEM TO BE SOLVED: To prevent a fold or a turnover by forming one surface of an attribute information identifying part in a sectional recess state, and by forming the other surface smooth. SOLUTION: In the case of (a), a lower end surface is smooth, an opening edge (edge part) 41a of an attribute information identifying part 41 is made perpendicular by stamping using a stamping member 52 of a cylindrical shape having a right angle between a side surface and a lower end surface. In the case of (b), the part 41 is formed by stamping using a stamping member 52B of a cylindrical shape formed at the lower end surface in a sectional circular arc state. Thus, a sagging of the edge 41a of the part 41 is prevented and can be effectively at a right angle. A rear surface side of a printed matter 40 is supported by a hard pedestal 51 or the like so that the rear surface side of the part 41 becomes smooth.</p> |
