| 摘要 |
PROBLEM TO BE SOLVED: To repair a damage on a part of a flexible container bag to prevent waste thread generated from an exposed part of a fiber material of the damage from coming inside the bag. SOLUTION: The damage repairing method for a flexible container bag includes: a first step for forming an opening 27 on a composite sheet portion 9a for removing a damage 14 inflicted on the composite sheet portion 9a being a part of the bag 1 and for positioning the lower board 24 of a heat welder 16 at the inside of the flexible container bag 1; a second step for inserting a repair sheet 28 in the opening 27 from above the composite sheet portion 9a for closing the opening 27 with the sheet 28; a third step for overlapping another repair sheet 30 on the top face of the composite sheet portion 9a closing the opening 27 from above the composite sheet portion 9a; and a fourth step for holding and for mutually heat welding D the composite sheet portion 9a, the sheet 28 and the sheet 30 between the lower boards 23, 24. COPYRIGHT: (C)2011,JPO&INPIT
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