The sheet for the round trip envelope and use this three

摘要

PROBLEM TO BE SOLVED: To easily provide a reply-paid envelope in which an envelope for reply and an envelope for out-going correspondence are integratedly formed of one sheet, and an order slip, etc., is inserted in the envelope for reply. ;SOLUTION: A cover sheet 2 of an envelope for out-going correspondence, a cover sheet 3 for an envelope for reply, and a back sheet 4 of the envelopes are continuous to each other through a folding part 5 in a foldable manner, a first sealing function forming piece 6 is provided on each component, a second sealing function forming piece 8 ready for the folding is provided to form a weakly adhesive part to be peelably adhered to surfaces opposite to each other, and a strongly adhesive part difficult to peel is provided along two sides. A sealant applied part 14 is provided on a surface opposite to the sheet 2, a peeling agent applied part 16 is provided on a lapped surface opposite to the out-going sheet 2 side of the sheet 3, a seal strength reinforcing agent applied part 18 is provided on a lapped surface on the sheet 3 side of the first sealing function forming piece of the envelop back sheet 4, and a sealing means 20 is provided on at least one of the lapped surfaces opposite to each other in the second sealing function forming piece of the sheet 3 and the sheet 4.;COPYRIGHT: (C)2000,JPO