The invention involves a bleachable antihalation system, particularly for use in thermally developable photographic recording materials. This antihalation system contains, besides an antihalation dye, a bleaching agent that forms sulfurous acid or sulfurous acid derivatives on treatment with heat or irradiation with actinic radiation.
                            这项发明涉及可漂白的抗晕染系统,特别用于热发展型摄影记录材料。该抗晕染系统除了含有抗晕染
染料外,还包含一种漂白剂,在受热或受到光
化学辐射处理时会形成
亚硫酸或
亚硫酸衍
生物。