| 摘要 |
A packaging bag manufacturing method for introducing a filler into a cylindrical film from a lower end of an introduction nozzle, and thermally sealing the cylindrical film, into which the filler has been introduced, in a width direction thereof, thereby manufacturing a packaging bag in which the filler is sealed. The method comprises the steps of: sandwiching the cylindrical film together with a lower end periphery of the introduction nozzle using a pair of members disposed in opposition to each other across the cylindrical film, while an area of the cylindrical film to be thermally sealed is positioned substantially above the pair of members; introducing the filler from the lower end of the introduction nozzle while the cylindrical film is nipped by the pair of members; carrying the cylindrical film until the area to be thermally sealed is positioned below the pair of members after the introduction of the filler; and thermally sealing the part to be thermally sealed in a width direction of the cylindrical film after carrying the cylindrical film. |
