POUCH

To provide a pouch capable of suppressing occurrence of seal retreat when the internal pressure increases due to heating and discharging steam to the outside from a desired position.SOLUTION: The pouch comprises: side sealed portions where a laminated film is heat-sealed; and an unsealed portion which is separated from an accommodation space by the side sealed portions and is not heat-sealed. The side sealed portions comprises: an upper sealed portion and a lower sealed portion located on both sides of the unsealed portion interposed therebetween; and an overhanging seal portion connected to the upper sealed portion and the lower sealed portion so as to surround at least a part of the unsealed portion, and overhanging toward the accommodation space side with respect to the upper sealed portion and the lower sealed portion. The laminated film has a heat generating ink layer as a layer outer than the sealant layer. The heat generating ink layer is continuously provided between: at least one of at least a portion of the lower sealed portion and at least a portion of the upper sealed portion; and at least a portion of the overhang seal portion.SELECTED DRAWING: Figure 1 【課題】加熱により内部圧力が高まった際にシール後退の発生を抑制し、所望の箇所から蒸気を外部に放出することができるパウチを提供する。【解決手段】積層フィルムをヒートシールした側部シール部と、側部シール部によって収容空間から隔離され、ヒートシールされない未シール部と、を有し、側部シール部は、未シール部を挟んで両側に位置する上側シール部分及び下側シール部分と、未シール部の少なくとも一部を取り囲むようにして上側シール部分と下側シール部分とに接続され、かつ、上側シール部分及び下側シール部分よりも収容空間側に向けて張り出した張出シール部分と、を有し、積層フィルムはシーラント層よりも外側層に発熱インキ層を有し、該発熱インキ層は、下側シール部分の少なくとも一部及び上側シール部分の少なくとも一部のうち少なくとも一方と、張出シール部分の少なくとも一部との間で連続して設けられる、パウチ。【選択図】図１