| abstract |
(57) [Summary] [Problem] To provide an antibacterial base material and a food packaging bag which have a long-term antibacterial property and have sufficient peel strength and heat seal strength. [Structure] An antibacterial layer 2 containing an isothiocyanate compound, a terpene compound or a cyclodextrin inclusion compound 2 of these compounds on at least one surface of a substrate 1. 1, and by covering the antibacterial layer 21 with the moisture permeable synthetic resin 3, isothiocyanate compounds or the like having antibacterial properties are fixed in the cavities of the cyclodextrin and are not volatilized in a normal dry state, Also, under high humidity suitable for the growth of mold and bacteria, humidity-permeable synthetic resin 3 The isothiocyanate compounds in the cavities of the cyclodextrin are gradually volatilized by the water vapor permeated through. |