| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an envelope effectively reusing an envelope once used for mailing of a document, expecting reduction of a waste material, and improving an opening rate of direct mails, and also to provide a manufacturing method for the envelope. Ž<P>SOLUTION: The envelope 10 has: a left-side end section 10a for connecting its left-side end edges; a right-side end section 10b for connecting its right-side end edges; a lower end section 10d for connecting its lower end edges; and an opening 10c between its upper end edges, in a pair of sheets 2, 3 having a frond side and a back side. Up and down separating lines 21a, 21b are formed inside the opening 10c, and side separating lines 22a, 22b are formed between the up and down separating lines 21a, 21b and the lower end section 10d so as to combine the up and down separating lines 21a, 21b and the lower end section 10d. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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