Reversible thermosensitive recording medium, reversible thermosensitive recording label, reversible thermosensitive recording member, image processing apparatus and image processing method

摘要

PPROBLEM TO BE SOLVED: To provide a reversible thermosensitive recording medium having good light resistance capable of stably repeating colorization and decolorization and obtaining a stable colored state and decolored state in which decolorization is almost complete even when exposed to light and a reversible thermosensitive recording label obtained through the use of the thermosensitive recording medium and also a reversible thermosensitive recording member, an image processing apparatus and an image processing method. PSOLUTION: The reversible thermosensitive recording medium comprises a substrate and at least a thermosensitive layer disposed on the substrate. The thermosensitive layer reversibly changes its color tone depending on the temperature and includes an electron donative coloring compound, an electron acceptive compound and a phenol anti-oxidation agent containing one or more sulfur atoms having an alkyl group on one side. In a preferred aspect, the content of the phenol-based anti-oxidation agent in the thermosensitive layer is from 1 to 10 mass% in a solid form, in the presence of a polymer having a structure of absorbing ultraviolet rays on the thermosensitive layer. The reversible thermosensitive recording label, reversible thermosensitive recording member, image processing apparatus and image processing method are also disclosed. PCOPYRIGHT: (C)2006,JPO&NCIPI