| 摘要 |
PROBLEM TO BE SOLVED: To disclose a structure of an envelope on which an address can be reliably printed when applied to widely prevailing printers. SOLUTION: The envelope comprises a sheet which is two-folded to form a surface sheet 10 having an address face and a rear sheet 11 having a folding face while an enclosure region S having in opening 17 is provided between the surface sheet 10 and the rear sheet 11. Pacing surfaces of the sheets 10 and 11 are directly stuck to each other on a side f2 except the opening 17 and a crease 18, while the sheets 10 and 11 are stuck to approximately overlap each other. Thus an approximately entire region of the enclosure region S is constituted of the same number of sheets.
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