A heat-developable color photographic material comprising a support having thereon at least a light-sensitive silver halide, a hydrophilic binder and a dye releasing redox compound represented by the following general formula (I):
wherein G represents -OR' or -NHR2; R' represents a hydrogen atom or a hydrolyzable group; R2 represents a hydrogen atom or an alkyl group containing from 1 to 50 carbon atoms; Z represents an image forming dye group; A represents an atomic group necessary for forming an aromatic ring; Ball represents an organic immobilizing group on the aromatic ring, and when two Ball groups exist, they may be the same or different from each other; m represents an integer of 1 or 2; X represents a divalent organic group containing from 1 to 8 atoms and X with a nucleophilic group (Nu) is capable of forming a 5- to 12-membered ring together with an electrophilic center (the carbon atom marked with *) which is formed by oxidation; Nu represents a nucleophilic group; and n represents an integer of 1 or 2.
The heat-developable color photographic material can easily provide a dear and stable color image by imagewise exposure to light and a heat-development procedure. A method of forming a color image using the heatrdevelopable color photographic material is also disclosed.
一种可热显影的彩色感光材料,包括至少有感光卤化
银的支持物、亲
水性粘合剂和由下通式(I)代表的
染料释放氧化还原化合物:
其中 G 代表-OR'或-NHR2;R'代表氢原子或可
水解基团;R2 代表氢原子或含有 1 至 50 个碳原子的烷基;Z 代表形成图像的
染料基团;A 代表形成芳香环所必需的原子团;Ball 代表芳香环上的有机固定基团,当存在两个 Ball 基团时,它们可以相同或互不相同;m 代表 1 或 2 的整数;X 代表含有 1 至 8 个原子的二价有机基团,带有亲核基团(Nu)的 X 能与通过氧化形成的亲电中心(标有 * 的碳原子)一起形成 5 至 12 元环;Nu 代表亲核基团;n 代表 1 或 2 的整数。
这种可热显影的彩色感光材料可通过图像曝光和热显影程序轻松提供亲切而稳定的彩色图像。此外,还公开了一种使用热显影彩色感光材料形成彩色图像的方法。