发明名称 SECRET POSTCARD
摘要 A secret postcard capable of solving a cost problem, capable of preventing the secret postcard from being returned in an unsealed state once the secret postcard is unsealed even in the secret postcard using a weak adhesive material (7) allowing the peeling of the secret face thereof, and usable in small volume, wherein the weak adhesive material (7) is applied onto the rear surface (5) of a front cover piece and the rear surface (6) of a rear cover piece opposed thereto so that the rear surface (5) of the front cover piece can be peeled off from the rear surface (6) of the rear cover piece. A strong adhesive material (10) is used at overlap width portions (9) and, accordingly, the overlap width portions (9) once stuck to each other with the strong adhesive material (10) cannot be peeled off unless these portions are cut off at perforations (8).
申请公布号 WO2004103721(A1) 申请公布日期 2004.12.02
申请号 WO2004JP07421 申请日期 2004.05.24
申请人 OKI, HIDEAKI;SATOU, MISAKO 发明人 OKI, HIDEAKI;SATOU, MISAKO
分类号 B42D15/08;G09F1/00;G09F23/10;(IPC1-7):B42D15/02 主分类号 B42D15/08
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