| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a bag making apparatus forming an injection port at an appropriate part in a square-bottomed bag. <P>SOLUTION: On a longitudinal direction constraining line selected near one sides edges 13, 14 of body materials 1, 2 wherein a body material 1 of one side layer is temporarily fixed to a side gusset member 3 of the one side layer and a body material 2 of the other side layer is temporarily fixed to a side gusset member 3 of the other layer, body materials 1, 2 of both layers are constrained with each other on the longitudinal constraining line. Then the body material 1 of one side layer is folded along a longitudinal folding line 11, the body material 1 of one side layer is reversed along a longitudinal reverse line 8, and at the same time, the body member 2 of the other side layer is folded along a longitudinal second folding line 9. <P>COPYRIGHT: (C)2011,JPO&INPIT |
