| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a steam venting packaging bag suitable for heating in a microwave oven or the like. <P>SOLUTION: The steam venting packaging bag is prepared by overlapping laminated films, is provided with a V-shaped inside folded part and a V-shaped outside folded part on one laminated film, and seals by heat sealing the surrounding of the end parts of the laminated films with sealant layers on the inner face of the laminated films. On the folded laminated parts, a pattern seal part consisting of continuous right and left pattern seal parts and a central pattern seal part respectively having unsealed parts are provided; on the inner face of the folded laminated parts, a releasable tape material exhibiting easily releasable properties is sealed and placed; and at least on the unsealed part of the central pattern seal part, over the releasable tape material, specified steam venting holes penetrate through it. <P>COPYRIGHT: (C)2010,JPO&INPIT |
