GRAIN SEALING STORAGE BAG, GRAIN STORAGE BAG, METHOD FOR PREVENTING GRAIN IN GRAIN SEALING STORAGE BAG OR IN GRAIN STORAGE BAG FROM INSECT PEST DAMAGE, AND MULTILAYER FILM
To provide a grain sealing storage bag, which kills or weakens insect pest inside the grain sealing storage bag without requiring usage of an insect repellent and/or an insecticide, and significantly prevents insect pest from intruding from outside of the grain sealing storage bag, and to provide a grain storage bag, a method for preventing grain in the grain sealing storage bag or in the grain storage bag from insect pest damage, and a multilayer film.SOLUTION: A grain sealing storage bag contains at least a multilayer film having a barrier layer, an inner layer and an outer layer. The multilayer film includes the inner layer on one side of the barrier layer, and the outer layer on an opposite side to the inner layer on the barrier layer. An oxygen permeation degree of the multilayer film is 0.1 cc/m/day/atm to 500 cc/m/day/atm. The interlaminar strength between the barrier layer and the outer layer is 0.01 N/15 mm to 2.9 N/15 mm. The multilayer film is constituted to form a bag shape so that the outer layer is positioned outside of the barrier layer, and so that the inner layer is positioned inside of the barrier layer.SELECTED DRAWING: Figure 1【課題】昆虫忌避剤および／または防虫剤の使用を必須とせずに、穀物密閉貯蔵袋内部の害虫を死滅または弱体化させ、かつ穀物密閉貯蔵袋外部からの害虫の侵入を有意に防ぐ穀物密閉貯蔵袋、穀物貯蔵袋、穀物密閉貯蔵袋内または穀物貯蔵袋内の穀物を害虫被害から防ぐ方法および多層フィルムを提供する。【解決手段】穀物密閉貯蔵袋は、バリアー層と内層と外層とを有する多層フィルムを少なくとも含み、前記多層フィルムは、前記バリアー層の一方の側に前記内層を有し、前記バリアー層における前記内層とは反対側に前記外層を有し、前記多層フィルムの酸素透過度が、０．１ｃｃ／ｍ２／ｄａｙ／ａｔｍ以上５００ｃｃ／ｍ２／ｄａｙ／ａｔｍ以下であり、前記バリアー層と前記外層との間の層間強度は、０．０１Ｎ／１５ｍｍ以上２．９Ｎ／１５ｍｍ以下であり、前記多層フィルムは、前記外層が前記バリアー層よりも外側に位置し、前記内層が前記バリアー層よりも内側に位置して袋形状を形成するように構成される。【選択図】図１
