PROBLEM TO BE SOLVED: To provide a film which has transparency, heat resistance, flexibility, low temperature impact resistance and secondary working suitability in a balanced manner, where the closed film is easily opened in a bag-making process and openability of the film is excellent.SOLUTION: There are provided a polypropylene resin film which is formed by laminating at least three layers of a first layer, a second layer and a third layer in this order, where each of the layers contains a propylene resin composition containing a specific propylene resin and/or ethylene-α-olefin copolymer and a packaging body for heating treatment using the same.SELECTED DRAWING: NoneCOPYRIGHT: (C)2017,JPO&INPIT【課題】 透明性、耐熱性、柔軟性、耐低温衝撃性、2次加工適性などをバランスよく兼ね備え、かつ製袋工程において閉じたフィルムを開けやすい、フィルムの口開き性に優れたフィルムを提供する。【解決手段】 第一の層、第二の層および第三の層の順で少なくとも3層が積層され、各々の層は、特定のプロピレン樹脂および/またはエチレン-α-オレフィン共重合体を含むプロピレン樹脂組成物を含む、ポリプロピレン樹脂フィルムならびにそれを用いた加熱処理用包装体を提供する。【選択図】 なし
