Patent ID: 6734138
Filing Date: 2004-05-11
Classification: B41M

Abstract:
A reversible thermosensitive recording material comprising:1) a substrate; 2) a recording layer located overlying the substrate and comprising a crosslinked resin, an electron donating coloring agent and an electron accepting color developer; and 3) a protective layer located overlying the recording layer and comprising a filler and a crosslinked resin, wherein the recording layer in a non-colored state achieves a colored state when heated at a temperature not lower than an image forming temperature and then cooled at a cooling speed (a), and the recording layer in the colored state achieves a non-colored state when heated at a temperature lower than the image forming temperature and not lower than an image erasing temperature, or when heated at a temperature not lower than the image forming temperature and then cooled relatively slowly as compared to the cooling speed (a), and wherein the outermost surface on the recording layer side of the reversible thermosensitive recording material has at least one of a ten-point mean roughness (Rz) not less than 1.5 &mgr;m and a ratio Sm/Rz not greater than 120, wherein Sm represents an average peak-to-peak length of the surface of the recording material.