INFORMATION CARRYING MEMBER, INFORMATION REPRODUCING DEVICE HANDLING THE SAME AND TRANSFER FOIL AND LABEL USED FOR PRODUCTION OF INFORMATION CARRYING MEMBER

摘要

PURPOSE:To provide the information carrying member with which the reproduction of the information is difficult in an ordinary state and the information reproducing device handling the member and the transfer foil and label used for production of the information carrying member. CONSTITUTION:This information carrying member has an information recording part 7 constituted by successively laminating a hologram layer with which mechanical reading of the information is possible and a reversible layer 5 which consists essentially of a resin and an org. low-polymer material dispersed into the resin and with which the transmission and reflection of IR rays or visible rays change reversibly depending on temp. on at least a base body 1. The reproduction of the information recorded on the hologram layer is made difficult in the ordinary state by the reversible layer disposed thereon but the hologram layer is made into a transparent state by heating up to T1 and cooling, by which the reproduction of the information is made possible. The ordinary state is restored by heating up to T2 and cooling.