AUTHENTICATION SEAL, AUTHENTICATION SYSTEM, AND FACILITY WITH GUEST ROOM

摘要

PROBLEM TO BE SOLVED: To provide an authentication seal which has high security and is inexpensive, an authentication system, and a facility with guest rooms.SOLUTION: There is provided an authentication item 100a formed by sticking an authentication seal 10 onto an authentication member 50, where the authentication seal 10 has a resin layer 14 and a coating layer 12 covering a surface 14a of the resin layer 14. The resin layer 14 has an authentication pattern in a visible state optically visible from the surface 14a of the resin layer 14. The authentication seal 10 has a stickiness to be stuck onto a surface 50a of the authentication member 50, on a rear face 14b thereof. When the resin layer 14 is shifted from a stuck state of being stuck onto the surface 50a of the authentication member 50 to a peeled state of being peeled from the surface 50a of the authentication member 50, the resin layer 14 preferably has a stickiness which deforms the authentication pattern into an invisible state so as not to be optically visible from the surface 14a. The coating layer 12 is formed of a transmissive material which enables the authentication pattern of the resin layer 14 to be optically visible from the surface 12a of the coating layer 12 through the coating layer 12. The authentication pattern is formed by self-forming of the resin layer 14.SELECTED DRAWING: Figure 1