PROBLEM TO BE SOLVED: To provide a fumigation film and a fumigation bag keeping sufficient gas-barrierness even after fumigation treatment under high humidity conditions, having biodegradability to enable easy disposal after use and excellent handling properties such as light weight and transportability to a fumigation site, and to provide a fumigation method to use the film.SOLUTION: There are provided the fumigation film having at least one layer composed mainly of a polyglycolic acid, the fumigation film further provided with other thermoplastic resin layer, preferably a layer composed mainly of a biodegradable resin, the fumigation bag produced by using the fumigation film, and the fumigation method for using the fumigation film or the fumigation bag.COPYRIGHT: (C)2012,JPO&INPIT【課題】高湿度下で燻蒸処理を行っても十分なガスバリア性と、使用後には簡便に廃棄可能な生分解性とを有するとともに、軽量で燻蒸処理を行う場所までの運搬などの取り扱い性に優れた燻蒸用フィルムまたは燻蒸用袋、及び、該フィルムを使用する燻蒸方法を提供すること。【解決手段】ポリグリコール酸を主成分とする層を少なくとも1層備えることを特徴とする燻蒸用フィルム、さらに他の熱可塑性樹脂層、好ましくは生分解性樹脂を主成分とする層を備える燻蒸用フィルム、該燻蒸用フィルムから形成した燻蒸用袋、並びに、該燻蒸用フィルムまたは燻蒸用袋を使用する燻蒸方法。【選択図】図1
