| 摘要 |
A reversible thermosensitive recording medium comprising a thermosensitive layer 13 provided on a substrate 11, changing transparency or color tone reversibly with temperature, in which the reversible thermosensitive recording medium has a change in deferred transparentization initiation temperature of at most 5{ C, or a rate of the change in transparentization temperature width of at least 90%. The layer includes a matrix resin in which is dispersed a low molecular weight organic material, the matrix resin is either a cross-linked mixture of a hydroxyl group containing thermoplastic resin, a linear isocyanate compound, and a cyclic isocyanate compound; or a cross-linked polycarbonate-based urethane resin. The substrate of the recording medium may be utilized as a reversible thermosensitive recording label. This label can be provided on the surface of a disk cartridge, a rewritable or write-once disk, and a cassette of a magnetic tape, thereby being capable of displaying at least a part of information stored in the information storage disk or magnetic tape. There is preferably a reflective Al layer 12, below layer 13, and a protective layer 14 over layer 14, and a magnetic layer 16 on the back of the substrate 11. |
