| 摘要 |
PROBLEM TO BE SOLVED: To seal and unseal the opening section of a bag body extending to a plurality of times. SOLUTION: At the opening section 2 of the bag body, a corrugated sheet section 14 which is folded into a corrugated state is provided. The corrugated sheet section 14 is equipped with two or more adhesive surfaces 15A to 15D and a surface 18 to be adhered, and folded into the corrugated state in such a manner that the adhesive surfaces 15A to 15D and the surface 18 may be confronted with each other. In this case, the adhesive surfaces 15A to 15D are equipped with an adhesive layer 16 and a release paper 17 which is separably pasted to the adhesive layer 16. Then, the opening section 2 is sealed by pasting the adhesive surface 15A away from the opening section 2 to the bag body. In the meantime, after cutting the adhesive surface 15A, the adhesive surface 15B on the opening section 2 side is pasted to the bag body, and thus, the opening section 2 is sealed twice or more. This sealing structure is applied to an envelope 1, and a receiver display section 26 equipped with a removable sheet (second sheet 30) is provided on the front surface of the envelope. First address and name are listed on a surface (the front surface of a first sheet 27), which is confronted with the rear surface of the removable sheet. At the same time, second address and name are listed on the removable sheet, and the display for the receiver is made changeable by peeling the removable sheet.
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