| 摘要 |
A reversible thermosensitive recording medium has a support, and a reversible thermosensitive recording layer formed thereon containing a reversible thermosensitive coloring composition of an electron-donating coloring compound and an electron-accepting compound, capable of reversibly assuming a color-developed state or a decolorized state, and a decolorization accelerating agent of formula (I):wherein p is an integer of 0 to 3; q and r are each independently an integer of 1 to 3; X1, X2, and X3 are each a bivalent hetero-atom-containing group; R1, R2, and R3 are each a hydrocarbon group with 1 to 22 carbon atoms, provided that at least one of R1, R2 or R3 is an aliphatic hydrocarbon group having 8 or more carbon atoms; and R4 is a hydrogen atom, hydroxyl group or an aliphatic hydrocarbon group having 1 to 8 carbon atoms. The above recording medium is used as an image display medium in an image display apparatus, and as a rewritable paper.
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