| 摘要 |
PROBLEM TO BE SOLVED: To provide a hiding postcard of a low cost and excellent in convenience and recyclability. SOLUTION: The problem is attained by the information hiding sheet X1 in which an information hiding paper sheet 1 is adhered to an information writing in paper sheet 2 with a transparent adhesive layer 24 when lapping the information hiding paper sheet 2 and the information writing in paper sheet 1 by folding back in a folding line 3 after removing a protecting sheet 4, thereafter by removing the information hiding paper sheet 2 from the information writing in paper sheet 1 delamination occurs between a pseudo adhesive layer 22 and a removing agent layer 21, and thereby an information writing in portion 2b on the hiding information writing in paper sheet is covered with a transparent resin layer. COPYRIGHT: (C)2009,JPO&INPIT
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