| 摘要 |
PURPOSE:To enable synchronous monolithic molding of film of a different color and a different kind on a part of a single-layer cylindrical film in a stratiform state, by providing a circular arc slit concentric with an annular slit making extrusion molding of the cylindrical film. CONSTITUTION:Resin A sent from an extruder 5 with pressure is extruded from an annular slipper 2, through which a cylindrical film 7 is formed and resin B sent simultaneously with the resin A from an extruder 6 with pressure is extruded, joined with a part of an external circumference of the cylindrical film 7, turned into a stratiform state and molded in a monolithic state. A different film 8 of different color or different kind resin is molded unitarily on a part of the cylindrical film 7 in a stratiform state, by making the resin from the extruder 6 into the resin of a different color or different kind from that of the cylindrical film 7. When, for example, a hand bag is manufactured by the cylindrical film 7 like this, a different color or different kind resin handle part made of the different film 8 is obtained on the circumference of an opening of the cylindrical film 7 making a single-layer part of the cylindrical film 7 into a main body of the different film 8 in a longitudinal direction by a cutting blade 9. |
