| 摘要 |
[Problem] To provide a flexible packaging bag comprising a film-like one-way nozzle, capable of rectifying discharged fluid of a packaged article to stabilize a spouted amount, capable of discharging the packaged article smoothly even when there is a small amount of the packaged article inside the bag, and capable of reinforcing the film-like one-way nozzle to improve discharge performance and bag-tearing strength. [Solution] A flexible packaging bag obtained by fusion-bonding the proximal end of a film-like one-way nozzle, having an outer-side one-way function for inhibiting outside air from entering the bag, onto a lateral inside surface of a packaging bag body composed of a laminated plastic film, wherein a rectifying/reinforcing seal part formed by sealing together two laminated plastic films that face each other is formed in an position in the vicinity of the packaging bag body whcih includes the bottom of the fused part of the film-like one-way nozzle proximal end. |
