| 摘要 |
Packaging for foodstuffs comprises an integral receptacle with a mouth opening and a bottom with an upright body; and a flat displaceable part with a bending stiffness and a rectangular shape corresponding with the shape of remaining part of the receptacle bottom, the body, or lid. The surface area of the displaceable part is at least 50% of the total surface area of the bottom, the body, or lid. Packaging for foodstuffs to be offered for sale comprises an integral receptacle with, on its top side, a mouth opening and, on its underside, a bottom (15) with an upright body and with at least one flat body part, where the mouth opening is bounded by a mouth rim which lies in a flat plane and which, after filling of the receptacle with foodstuffs and optionally a chosen gas or gas mixture, can co-act in hermetically sealing manner with a lid, e.g. a foil connected by sealing to the mouth rim; and a flat displaceable part which forms part of the bottom, the body part, or the lid and acts as displacer; and optionally a filling with a gas serving as protective atmosphere, e.g. a mixture or carbon dioxide and nitrogen, or carbon dioxide and oxygen. The displaceable part is connected to the remaining peripheral part of respectively the bottom, the body part, or the lid by an at least one-dimensionally elastically deformable coupling edge. The displaceable part has a rectangular shape corresponding with the shape of the remaining part of the bottom, the body, or the lid. The surface area of the displaceable part is at least 50% of the total surface area of the bottom, the body, or the lid. The displaceable part has bending stiffness. An elastically deformable zone is situated in each of the four corner zones of the coupling edge and over the whole periphery of the displaceable part. The displaceable part is movable between a first position displaced to the outside and a second position displaced to the inside.
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