Packaging container, packaging body including the same, and packaging method

摘要

A tray which is capable of providing a sufficient bond strength in an operation for thermobonding the tray and a stretch film by an inclined heat roller. A tray (10) comprises a bottom surface (11), a wall surface (12), and a flange (13). The bottom surface (11) is a surface for placing an object to be packaged. The wall surface (12) extends upward from the bottom surface (11) to surround the latter. The flange (13) extends outward from the upper end of the wall surface (12). Further, the flange (13) has a curved portion (13a) on the wall surface side and an inclined portion (13b) positioned outwardly of the curved portion (13a). And the inclined portion (13b) has a substantially linear cross section in its upper surface. Further, the curved portion (13a) is formed such that the wall surface (12) and the inclined portion (13b) form a continuous shape.