PROBLEM TO BE SOLVED: To provide a packaging bag which has an antibacterial effect even in non-contact with a food product and has an antibacterial effect itself over a long period of time.SOLUTION: A laminated body 10 is used which is formed of a poreless base material layer 11, an antibacterial coat layer 12 provided by applying a coating liquid containing a volatile antibacterial substance, an adhesive layer 13, and a thermoplastic resin layer 14 having an aperture. Allyl isothiocyanate is used as the volatile antibacterial substance. The aperture provided on the thermoplastic resin layer is provided so as to heat and push a roll having a plurality of bar-like projections provided outward thereon.SELECTED DRAWING: Figure 2COPYRIGHT: (C)2017,JPO&INPIT【課題】食品に非接触でも抗菌効果があり、長期に渡って、袋自体が抗菌効果を有する包装袋を提供する。【解決手段】無孔の基材層11、揮発性抗菌物質を含有する塗布液を塗布して設けた抗菌コート層12、接着層13、開孔を有する熱可塑性樹脂層14とからなる積層体10を用いた。揮発性抗菌物質には、アリルイソチオシアネートを用いた。そして、熱可塑性樹脂層に設けた開孔が、表面に複数の棒状突起が外方に向かって設けられたロールを加熱し、押し当てて設けられている。【選択図】図2
