| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a packaging bag protecting a closing means that is used to freely open/close an opening created by cutting a portion of the peripheral edge of a sealed film piece from the contents during storage or transportation, and has the protective ability being excellent even when internal pressure is applied to the inside of the packaging bag. <P>SOLUTION: The closing means, which can be freely opened/closed and consists of first and second members that mutually engage, is formed by the upper part of a first base member having the first member and the upper part of a second base member having the second member each being joined to the inner side of the facing film pieces that form the opening. The lower end part of one of the base members is additionally formed to be longer than the other base member, and the lower end part is joined to the other opposing film piece using a peel-off seal in order to form an easy-to-peel part whereby the opening is unsealed by peeling to unseal. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
