STANDING POUCH

PROBLEM TO BE SOLVED: To smoothly fill an item to be packaged in the bag part (5) of a standing pouch formed with a flatly spread bottom part by inserting and heat sealing a bottom film (3) in a folded condition in an inward direction of the bag part (5) at the bottom of a back film (2) and front fi...

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1. Verfasser: WATANABE RYOZO
Format: Patent
Sprache:eng
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Zusammenfassung:PROBLEM TO BE SOLVED: To smoothly fill an item to be packaged in the bag part (5) of a standing pouch formed with a flatly spread bottom part by inserting and heat sealing a bottom film (3) in a folded condition in an inward direction of the bag part (5) at the bottom of a back film (2) and front film (1) whose side end edges are welded in a superimposed condition. SOLUTION: A bottom film (3) is heat sealed in a ship bottom shape or in an inverted trapezoid with a bottom face lowering toward the center from the right and left adjoining parts (42) where a front film (1) and a back film (2) are joined. The bottom heat seal part (40) which is the welded part of the bottom film (3) and the front film (1) or the back film (2) is formed along the peripheral edge of the film (3). COPYRIGHT: (C)2006,JPO&NCIPI