ANTIBACTERIAL SHEET AND ITS USE METHOD

To provide an antibacterial sheet capable of efficiently dispersing an antibacterial component to an entire inside of a hermetically sealable food container such as a lunch box and its usage.SOLUTION: An antibacterial sheet comprises an antibacterial layer containing an antibacterial component such as AITC, a first surface layer capable of sustainably releasing the antibacterial component, and a second surface layer capable of sustainably releasing the antibacterial component, in which a release amount per a unit time of the antibacterial component from the first surface layer is larger than the release amount per a unit time of the antibacterial component from the second surface layer. In a food container that houses a food in a container body and is hermetically sealed with a lid, the antibacterial sheet is arranged such that the first surface layer faces the lid body, and the second surface layer faces the food. Since an antibacterial action can be surely applied to the food in a region distanced from the antibacterial sheet, without contacting the antibacterial sheet to an entire surface of the food, it is possible to apply the antibacterial action to an entire food and can maintain a hygiene state.SELECTED DRAWING: Figure 2 【課題】弁当箱等の密閉可能な食品用容器の内部全体に抗菌成分を効率よく拡散させることが可能な抗菌シート及びその使用方法を提供する。【解決手段】抗菌シートは、ＡＩＴＣ等の抗菌成分を含む抗菌層と、抗菌成分を徐放させることが可能な第１の表面層と、抗菌成分を徐放させることが可能な第２の表面層とを備え、第１の表面層からの抗菌成分の単位時間当たりの放出量が、第２の表面層からの抗菌成分の単位時間当たりの放出量よりも多くなっている。容器本体に食品が収容され蓋体で密閉される食品用容器において、抗菌シートを第１の表面層が蓋体に面し、第２の表面層が食品に面するように配置する。抗菌シートから離れた領域の食品にも確実に抗菌作用を及ぼすことができるから、抗菌シートを食品の表面全体に接触させなくても、食品全体に抗菌作用を及ぼして衛生状態を保つことが可能である。【選択図】 図２