There is disclosed a light-sensitive material comprising, in a hydrophilic colloid provided on a base, a color-developing agent represented by formula (I) or (II):
R3-NHNH-Z2 formula (II)
wherein Z1 represents an acyl group, a carbamoyl group, an alkoxycarbonyl group, or an aryloxycarbonyl group; Z2 represents a carbamoyl group, an alkoxycarbonyl group, or an aryloxycarbonyl group; X1, X2, X3, X4, and X5 each represent a hydrogen atom or a substituent, provided that the sum of the Hammett substituent constant σp values of X1, X3, and X5 and the Hammett substituent constant σm values of X2 and X4 is 0.80 or more but 3.80 or below; and R3 represents a heterocyclic group. There is also disclosed a novel color-developing agent that can be built in. By using the color-developing agent, the light-sensitive material can attain a rapid and simple formation of an image.
本发明公开了一种光敏材料,它包含在基底上的亲
水性胶体中,由式 (I) 或 (II) 所代表的
显色剂:
R3-NHNH-Z2 式(II)
其中 Z1 代表酰基、
氨基甲酰基、烷氧羰基或芳氧羰基;Z2 代表
氨基甲酰基、烷氧羰基或芳氧羰基;X1、X2、X3、X4 和 X5 各自代表氢原子或取代基,条件是 X1、X3 和 X5 的哈米特取代基常数 σp 值与 X2 和 X4 的哈米特取代基常数 σm 值之和为 0.80或以上,但为3.80或以下;R3代表杂环基团。还公开了一种可内置的新型
显色剂。通过使用该
显色剂,感光材料可以快速简单地形成图像。