Patent ID: 8148298

Claim:
A method for cleaning a reversible thermosensitive recording medium that comprises a protective layer of a thickness in a range of 0.1 μm to 10 μm, said method comprising: cleaning the reversible thermosensitive recording medium with a cleaning solution comprising a nonionic surfactant, wherein the nonionic surfactant in the cleaning solution is at least one selected from the group consisting of polyoxyethylene fatty alcohol ether, polyoxyethylene sorbitan fatty acid ester, polyoxyethylene castor oil, polyoxyethylene hydrogenated castor oil, polyglycerin fatty acid ester, and alkyl polyglucoside, wherein the nonionic surfactant in the cleaning solution includes laurel glucoside, and wherein the reversible thermosensitive recording medium comprises an electron-donating coloring compound and an electron-accepting compound and reversibly changes any one of transparency and color tone depending on temperature.