| 摘要 |
<p>PURPOSE:To improve a seal quality further enabling the melt mounting time to be shortened by mounting a film in its opening peripheral edge pat, excepting a port part insertion mounting part, to be melted by heat and forming a chemicals storage part thereafter inserting a port part into the port part insertion mounting part of the chemicals storage part, mounting the port part to be thermally melted to the chemicals storage part, and so on. CONSTITUTION:A port part 1 and a chemicals storage part 2 are formed by the same material, but the forming material uses olefin type synthetic resin of good chemical resistance. In case of a film being an inflation film, a bag mounts its shoulder part and bottom part to be thermally fusion bonded, forming the chemicals storage part 2. Next inserting the port part 1 into a port part insertion mounting part 4, which is only one opening part, finally applying a heating metal mold to a peripheral edge part of the chemicals storage part 2 containing the port part insertion mounting part 4, the port part and the chemicals storage part are mounted to be thermally fusion bonded. In this way, the heating metal mold eliminates its pressing force unbalance for the film, while preventing the film from floating from the port part 1, leakage and/or a break in the vicinity of the port part can be completely prevented.</p> |
