| 摘要 |
PURPOSE:To obtain a thermal recording paper having excellent surface characteristics and hardly deteriorated at white paper parts and developed color parts thereof by chemicals, by a method wherein an overcoat layer comprising a water-soluble polymeric compound as a main constituent and comprising a slicone rubber is provided on a thermal color forming layer. CONSTITUTION:The thermal recording paper comprises the thermal color forming layer comprising as main constituents a colorless or light-colored dye precursor and a color developer for developing the color of the dye precursor by reacting with the precursor when being heated, on which is provided the overcoat layer comprising a water-soluble polymeric compound as a main constituent and comprising a silicone rubber. The silicone rubber is favorably used in an amount of not less than 0.5wt%, preferably, 1- 40wt%, from the viewpoints of surface characteristics, color forming sensitivity and printability. If the amount is less than 0.5wt%, effects in preventing blocking or abnormal gloss can not be obtained. On the other hand, if the amount is more than 40wt%, smoothness is not enhanced in super calender finishing, so that close contact of the paper with a thermal head can not be achieved and the color forming sensitivity and printability are degraded. |
