| 摘要 |
<P>PROBLEM TO BE SOLVED: To develop a thermal recording material with excellent light-resistance and high color developing density. <P>SOLUTION: The thermal recording layer is provided with a thermal recording color-developing layer comprising a usually colorless or light-colored color developing compound, a developer compound capable of color-developing the color developing compound by heating and an ultraviolet absorber. It comprises 3-diethylamino-7-(m-trifluoromethylanilino)fluorane in a thermal color developing layer and 2,2'-methylene bis[4-(1,1,3,3-tetramethylbutyl)-6-(2H-benzotriazole-2-yl)phenol] as the ultraviolet absorber. <P>COPYRIGHT: (C)2004,JPO&NCIPI |
