| 摘要 |
Disclosed is a non-self standing type flexible package bag provided with a film-shaped one-way pouring nozzle which is excellent not only in the non-return function and liquid cutting properties but also in the pouring property of a liquid packing material as a filling substance (capable of smoothly pouring the packing material in the bag until the end). The flexible package bag is constituted by protruding the film-shaped one-way pouring nozzle from a side portion of a package bag main body in which a laminate film in a non-seal portion of the package bag main body has an irregular inner surface in at least an upper part thereof or in the vicinity of a side edge side the film-shaped one-way pouring nozzle.
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