| 摘要 |
PURPOSE:To obtain the titled material, which has excellent shelf life and imparts excellent coloring, whose color is not faded by light, and wherein a specified naphthol blue coloring coupler and a new yellow coloring coupler are used at the same time together with a diazo compound and a heat fusible material. CONSTITUTION:A blue coloring coupler (e.g. naphthol AS or the like shown by the formula II) shown by the formula I (R1 is an aromatic group and alicylic group; X1 is H, halogen, acetyl, sulfonic acid, and alkoxyl) and a novel yellow coloring coupler (e.g. compounds shown by the formulas V and VI or the like) shown by the formula III or the formula VI (R2 and R3 are alkyl, alkoxyl, phenyl, and cyano; X and Y are halogen, alkyl, and alkoxyl; (n) is 0-4; and (m) is 0-5) are used as couplers at the same time. The couplers, a diazo compound, and a heat fusible material (material having 50-350 deg.C of a melting point and a softening point is recommended), and a binder, an acidic material, a basic material, a filler, and the like as required are provided on a supporting body as a heat sensitive layer, and an intended recording material is obtained. |
