Photothermographic element comprising improved base precursors and methods for their use
申请人:——
公开号:US20040185352A1
公开(公告)日:2004-09-23
Photothermographic elements employing improved base precursors that undergo thermal decomposition are disclosed. Thermal-dye-bleach agents, and in particular, a novel class of salts of arylsulfonylacetic acids as bleaching agents for photothermographic use are disclosed. Photothermographic elements employing these thermal-dye-bleach agents are suitable for use as acutance and antihalation systems, bleachable filter dye materials, and in promoting unblocking of various components such as blocked developers, especially in photothermographic elements.
本发明公开了采用经过热分解的改进型基体前体的光热元件。公开了热染料漂白剂,特别是一类新型的芳基磺酰乙酸盐作为光热使用漂白剂。采用这些热染料漂白剂的光热元件适用于用作锐度和防晕染系统、可漂白滤光片染料材料,以及促进各种组分的去阻塞,特别是在光热元件中。