首页> 外国专利> Liquid developer for silver halide photographic material and method for developing silver halide photographic material

Liquid developer for silver halide photographic material and method for developing silver halide photographic material

机译:用于卤化银照相材料的液体显影剂和用于显​​影卤化银照相材料的方法

摘要

The invention provides a liquid developer for photographic silver halide photosensitive material comprising a silver halide emulsion layer containing at least 50% based on the projected area of tabular silver halide grains with an aspect ratio of at least 3.0 and having a swelling factor of 130-250%. In the liquid developer containing ascorbic acid or a derivative thereof as a developing agent or preservative, a compound of formula (I): IMAGE (I) wherein each of R1 and R2 is a C1-C3 hydroxyalkyl group or C1-C3 alkyl group and R3 is a C1-C3 hydroxyalkyl group is added for preventing the developer from coloring with the lapse of time.
机译:本发明提供了一种用于照相卤化银感光材料的液体显影剂,其包括卤化银乳剂层,其包含基于板状卤化银颗粒的投影面积的至少50%,纵横比至少为3.0并且溶胀系数为130-250。 %。在含有抗坏血酸或其衍生物作为显影剂或防腐剂的液体显影剂中,式(I)的化合物:<图像>(I)其中R1和R2各自为C1-C3羟烷基或C1-C3烷基为了防止显影剂随着时间的流逝而着色,R 3是C 1 -C 3羟烷基。

著录项

相似文献

  • 专利
  • 外文文献
  • 中文文献
获取专利

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号