| 摘要 |
PROBLEM TO BE SOLVED: To provide a cardboard carton of a type in which powder such as powder detergent or the like is directly packed, and which is free of any leakage of the powder therefrom and excellent in strength.SOLUTION: The front face side of a bending panel 5 is bonded to the upper part of the reverse face side of a back panel 3 of the cardboard carton, with a cover panel 6 being overlapped over the top face panel 4, while the reverse face side of an opening panel 7 with the handle portion of a pull-tab 7a being left over is bonded to the upper part of the front face side of a front panel 2, so that the body portion of the carton is shaped, after that the body portion is raised in a state of a square cylinder, with one end thereof being closed for filling the content therein, and likewise the other end of the body portion is closed. Two pieces of half-cut incised lines α, β being half cut from both the front and reverse sides with shifted phases are provided. With the bending panel 5 being bonded to the upper part of the reverse side face of the back panel 3, while with both the right and left sides being closed at sealing ends, the interior of the carton C is in a state of being perfectly sealed in, so that the powder filled therein is free of any leakage to outside. |
