| 摘要 |
PURPOSE:To obtain thermal recording paper superior in resistance to water, resistance to solvents, and the like by providing an overcoat agent on a thermal recording layer and using a specific acrylic resin having a polarity as the overcoat agent. CONSTITUTION:In thermal recording paper provided with an overcoat agent on a thermal recording layer containing a phenol compound, a leuco dye reacting with the phenol compound to produce a color under heat, and a binder, an overcoat agent prepared by dissolving a copolymer resin made of a dialkyl aminoalkyl (meta)acrylate unit and a styrene unit or a tertiary butyl(meta)acrylate unit in a solvent mainly composed of an aliphatic hydrocarbon and/or a naphthene hydrocarbon is used as the overcoat agent. Because the thermal recording paper is constructed so that the overcoat agent made of the specific acrylic resin solvent solution is applied on the thermal recording layer, the color forming surface of the recording paper never produces a color even if it is left to stand at high moisture for a long time or brought into contact with water, thus keeping a stable whiteness and never generating printing irregularities. The recording paper also has high resistance to solvents and acids and a large effect from the stand. point of the practical use of the thermal recording paper. |
