PACKAGE FOR THERMAL PROCESSING

• Main Authors: SHIBAZAKI TSUYOSHI, TONOGAKI TOMOYA, OGURA YUSUKE, YAGI CHIKAKAZU
• Format: Patent
• Language: English; Japanese
• Published: 30.08.2023
• Subjects: ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS,e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES,DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; CONVEYING; HANDLING THIN OR FILAMENTARY MATERIAL; PACKAGES; PACKAGING ELEMENTS; PACKING; PERFORMING OPERATIONS; STORING; TRANSPORTING

To provide a package for thermal processing allowed to suppress the pressure change within a package due to water vapor within the package or thermal expansion of internal air and prevent a chuck seal unit from being unsealed upon a rise of internal pressure, so as to thermally process a content such as a food material efficiently.SOLUTION: A package for thermal processing in the present invention comprises a bag body made up with a package film, a chuck seal unit that hermetically seal a content inputted into the bag body, and a principal-raftered seal unit for releasing the internal pressure raised when the content is thermally processed. One of male and female chucks of the chuck seal unit has a non-joined region not contacting with the bag body at from an end on a bag-interior side of a contact face contacting with the bag body toward an exterior of the bag body. In a predetermined position of the bag body, a crease is formed nearly in parallel with the chuck seal unit and having a valley fold on a side the non-joined region is formed.SELECTED DRAWING: Figure 1 【課題】包装体内部の水蒸気や内部空気の熱膨張による包装体内部の圧力の変動を抑制するとともに、内部圧力が上昇した際にチャックシール部が開封するのを防止することができ、食材等の内容物を効率よく加熱処理することが可能な加熱処理用包装体を提供する。【解決手段】本発明の加熱処理用包装体は、包装体フィルムで構成された袋体と、内容物を前記袋体の内部に投入して密封するチャックシール部と、前記内容物を加熱処理して内部圧力が上昇したときにその圧力を逃がす合掌シール部とを有し、チャックシール部の雄チャック及び雌チャックの一方は、前記袋体と接触する接触面の前記袋体内部側の端部から前記袋体外部に向かって、前記袋体と接合していない非接合領域を有し、前記袋体の所定の位置には、前記チャックシール部と略平行な、前記非接合領域が形成されている側を谷折りとする折り目が形成されている。【選択図】図１