| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a synthetic resin bag in which refilling operation can be performed smoothly and certainly, and to provide a forming method of the synthetic resin bag. <P>SOLUTION: In the synthetic resin bag 1, a welded part is formed at a peripheral edge by welding the peripheral edge of at least a pair of bag wall forming sheet bodies 10, 11, a hollow bag body 2 is formed therein, a part of hollow bag body 2 forms a hollow expansion 3 expanded to the welded part side, a cutting yarn 40 is extended and arranged in the direction crossing the hollow expansion 3, the cutting yarn 40 cuts a part of one bag wall sheet body 10 forming the hollow expansion 3 by being exfoliated to make the hollow expansion 3 openable where the welded parts located at both sides of the hollow expansion 3 are brought into jump-up states by inserting a tubular discharging guiding body with nearly equal outer diameter to the inner diameter of an opening into the opened opening of the hollow expansion 3 while being capable of being inserted and pulled out freely, and notches 34, 35 extending in the direction of the axis of the tubular discharging guiding body are formed at the welded part curbing along the peripheral surface of the tubular discharging guiding body and located at both sides of the tubular discharging guiding body. <P>COPYRIGHT: (C)2013,JPO&INPIT |
