| 摘要 |
PROBLEM TO BE SOLVED: To provide a sealed letter paper which is made in a sealed letter that can be sent as a reply, by merely folding the paper with written information, and which conceals the information, enables entry of a number of information items, has an almost uniform thickness as a whole, excels in printing suitability and moreover facilitates unsealing of the sealed letter. SOLUTION: The surface of a peripheral part in one section of an upper-side sheet of the paper formed when the paper is folded double has releasability, while the surface of a peripheral part in the other section has pseudo-adhesion, and the surface of a peripheral part in one section of a lower-side sheet formed when the paper is folded double has a strong adhesion. The two sheets of the upper and lower sides are stuck together so that the surface having the releasability and the strong adhesion are opposed to each other, so as to form one sheet of the paper having the approximately uniform thickness. In the sealed letter paper thus constituted, the peripheral part having releasability is removed, while the peripheral part having the strong adhesion is exposed, and the sheets are stuck to each other when the paper is folded double, so as to form the sealed letter. On the occasion of unsealing the sealed letter, the surface of the peripheral part having the pseudo-adhesion can be peeled off from the opposite surface. COPYRIGHT: (C)2008,JPO&INPIT |
