| 摘要 |
PROBLEM TO BE SOLVED: To provide an envelope capable of being easily opened without damaging a letter paper, having good appearance after being opened, and being directly stored. SOLUTION: A sealing flap 10 of the envelope 1 includes a nonadhesive part 40 between a folding line 20 and an adhesive part 30. The nonadhesive part 40 is provided with a perforated line 60 on which a cutting thread 70 for opening is pasted. At least one end of the nonadhesive part 40 can be torn into a predetermined configuration. COPYRIGHT: (C)2009,JPO&INPIT
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