| 摘要 |
An adhesive sheet S includes a first sheet S1 having a first sheet base 10 of which one surface is formed as a printable surface 10A to be printed with mirror letters 10a, a first pseudo-adhesive layer 11 and a first adhesive layer 12 which are laminated on the other surface; and a second sheet S2 having a second sheet base 15 of which one surface is formed as a printable surface 15A to be printed with print letters 15a, a second pseudo-adhesive layer 16 and a second adhesive layer 17 which are laminated on the other surface. The mirror letters 10a maintain in a concealed state under a condition that the second sheet base 15 is peeled off, and the mirror letters 10a become visible in correct orientation seen from the back surface side by peeling off the first sheet base 10, therefore, when the invention is applied to a delivery slip and the like, by arranging the mirror letters 10a to be confidential information, secrecy of the confidential information can be secured.
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