| 摘要 |
PURPOSE:To transport without a buffering material provided by providing buffering gas sealed in a space between a first package and a second package. CONSTITUTION:When a first film 2 is made to be a bag, a part 1 is mounted at the center of the developed first film 2 and both ends are doubly folded so that the folded ends overlap each other. Then, by heat-welding the overlapping part, a heat-welded part 4 is formed while a heat-welded part 3 is formed by heat-welding respective side edges. Then, a second film 5 wraps the first film 2 and the overlapping part and an opening end is heat-welded to form the heat-welded part 3 and a heat-welded part 6. The heat-welded part 3 of the second film 5 is formed to overlap the heat-welded part 3 of the first film 2 while quality maintaining gas is sealed before completion of the welding. Thus transportation is possible without providing a buffer material. |
