| 摘要 |
PURPOSE: To provide thermal recording paper which is little in fog on texture owing to storing for a long period and excellent in useful life of a recorded image in the thermal recording paper wherein neutral paper containing alkyl ketene dimer as a sizing agent is used as a substrate. CONSTITUTION: A recording layer containing a leuco base dye and a color developing agent is provided on neutral paper wherein alkyl ketene dimer is used as a sizing agent. Alkali salt of diisobutylene-maleic anhydride copolymer is contained in the recording layer. |
