| 摘要 |
PURPOSE:To obtain a heat-sensitive recording paper easy to enhance smoothness, having a high print density and a favorable uniformity of color development, by a method wherein a surface of a base paper in a wetted condition is pressed against a heated mirror surface, and is dried in specified conditions. CONSTITUTION:First, the surface of the base paper in a wetted condition is pressed against the heated mirror surface of a heated drum or the like which is mirror surface finished by plating with chromium or the like, and is dried so that the center line average roughness according to JIS-B0601 on the pressed side of the surface of the base paper becomes not higher than 2.5. Then, a mixed liquid containing (A) a color forming substance such as crystal violet lactone, (B) a color developing substance such as 4, 4'-isopropylidenediphenyl for developing the color of the color forming substance and (C) a binder such as hydroxyethyl cellulose as main constituents is applied onto the base, and is drived to produce a heat-sensitive color forming layer, thereby obtaining the objective heat-sensitive recording paper. |
