Photographic recording material employing a nondiffusible cyan dye-releasing compound or precursor thereof
申请人:EASTMAN KODAK COMPANY
(a New Jersey corporation)
公开号:EP0095127A2
公开(公告)日:1983-11-30
A Photographic recording material is described which employs a novel, nondiffusible compound capable of releasing at least one diffusible cyan dye moiety comprising a 6-heterocyclylazo-3-pyridinol compound having the structural formula:
wherein:
(a) Y represents the atoms necessary to complete a 5-or 6-membered aromatic heterocyclic fused ring;
(b) CAR represents a ballasted carrier moiety capable of releasing the diffusible cyan dye moiety as a function of development of a silver halide emulsion layer under alkaline conditions,
(c) R represents a hydroxy group, a salt thereof, or a hydrolyzable precursor thereof, or CAR which is linked to the dye moiety through an oxygen atom thereon; and
(d) n is 0, 1 or 2, with the proviso that when n is 0, then R is CAR which is linked to the dye moiety through an oxygen atom thereon.
描述了一种照相记录材料,该材料采用了一种新型的不可扩散化合物,该化合物能够释放出至少一种可扩散的青色染料分子,该化合物由具有结构式的 6-异环偶氮-3-吡啶醇化合物组成:
其中
(a) Y 代表完成 5 或 6 元芳香杂环所需的原子;
(b) CAR 代表一种压载载体分子,能够在碱性条件下随着卤化银乳剂层的显影而释 放扩散性青色染料分子、
(c) R 代表羟基、其盐、或其可水解前体,或 CAR 通过其上的氧原子与染料分子相连;以及
(d) n 为 0、1 或 2,但当 n 为 0 时,R 为通过氧原子与染料分子相连的 CAR。