| 摘要 |
PROBLEM TO BE SOLVED: To automatically judge a positional relation between a bottom seal part 8 and a side seal part 10 of the standing pack whether it is proper or not. SOLUTION: In the manufacturing process of the standing pack 1, the bottom and the side are sealed, and then a body material 5 and a bottom material 7 are to be sent to the standing pack 1 in width direction, while an optical sensor 3 reads the surface of minute uneveness of the bottom seal part 8 and the side seal part 10 to judge the suitable position of the bottom seal part 8 and side seal part 10. |
