| 摘要 |
PROBLEM TO BE SOLVED: To provide a corrugated board box in which a tear strip can be torn to open it without being cut at its midway part. SOLUTION: A corrugated board box with a tear strip is manufactured by applying a ruled line at its rear liner and forming a liner cutting part on the same linear line. Manufacturing the liner cutting part on the same linear line as that of the ruled line enables an operator to reach a succeeding liner cutting part while being guided by the ruled line even if the operator is apt to move away from the liner cutting part when a part between the cutting segments of the liner cutting part is torn out at the time of opening the corrugated board box. Although applying the ruled line to the rear liner causes a folding trace to be generated thereat, it is also possible to correct the folding trace by passing it through rolls after manufacturing the ruled line in view of the fact that an adhesion to an inner core becomes insufficient by its repelling action. COPYRIGHT: (C)2010,JPO&INPIT |
