| 摘要 |
PURPOSE:To maintain prescribed sensitivity during storage for a long period and to obtain superior stabilite by combinedly incorporating specified two kinds of dyes. CONSTITUTION:This photosensitive material contains combinedly dyes represented by formulae I, II [where each of V1-V4 is H, halogen, (un) substituted alkyl, acyl, acyloxy, alkoxycarbonyl, carbamoyl or the like; V1 and V2 or V3 and V4 may bond to each other to form a benzene ring; each of R1, R2, R4 and R5 is (un)substituted alkyl or may form a salt together with a metallic atom or other org. compound; R3 is H, (un)substituted alkyl or aryl; Z1 is a group of atoms forming a ring such as (un)substituted 2-quinoline, 2-pyri dine or thiazole, the ring may be condensed with other ring; Z2 is a group of atoms forming a 5- or 6-membered heterocyclic ring which may be condensed with other ring; each of X1 and X2 is an anion; l=0-1; m=0-1; and when the dyes form inner salts, l, m=0]. Prescribed sensitivity is stably maintained by combinedly using the dyes. |
