| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a manufacturing method for a packaging container and the packaging container, by which a gas exchange sealing packaging container having an improved preservability of a food or the like, to form a lid container different from a tray-shaped package for a content larger than a container body in volume, is allowed to be heated in a microwave oven. <P>SOLUTION: In the manufacturing method for packing container and the container, a packaging machine manufactures the packaging container through processes of a continuous forming from a multilayer sheet containing a gas barrier layer, a content filling, a gas exchange, a sealing, and a cutting. In the gas exchange process, the packaging container is sealed in a vacuum chamber, and then a part of a flange of the container is subjected to a secondary sealing process to increase the peeling strength of the part. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
