| 摘要 |
<p>PROBLEM TO BE SOLVED: To easily confirm an improper unsealing of a carton by a method wherein a closed U-shaped loop is drawn along the end edge of one of a pair of surface plates which are arranged in a manner to be confronted to each other, and also, an adhesive is applied on an index piece which is surrounded by a breakable perforation, and an area which is surrounded by a perforation excepting the index piece. SOLUTION: After building up the bottom of a carton into a container-shape, and when the carton is placed under a state wherein a flap 7 and bending parts 3a, 4a only are opened, a glue 8a, 8b is applied on an index piece (1b) and a part which is surrounded by a perforation (1a), and by bending the flap 7 and the bending parts 3a, 4a in specified directions, the inside of the carton is closed. Thus, a process is constituted in such a manner that a product is packed before the flap 7 is closed, and by doing so, the carton is presented to the market as a carton housing a product. At the time of unsealing, a finger tip is engaged with the upper end edge of the surface plate 1 at the area which is surrounded by the perforation (1a), and this area is expanded, and the flap 7 is opened in a manner to peel off the part which is surrounded by the perforation (1a) from the surface plate, together with the index piece (1b).</p> |
