Adsorbable alkynyl substituted heterocyclic quaternary ammonium salts and applications thereof to silver halide photography
申请人:EASTMAN KODAK COMPANY
(a New Jersey corporation)
公开号:EP0132165A1
公开(公告)日:1985-01-23
The use ofthioamido and alkynyl substituted heterocyclic ammonium salts in producing images in silver halide photographic elements is disclosed. The thiomideo and alkynyl substituted heterocyclic ammonium salts can be incorporated in photographic silver halide emulsions. The thiomido substituent is capable of promoting adsorption of these salts to silver halide grain surfaces. In negative working surface latent image forming emulsions the thiomido and alkynyl substituted heterocyclic ammonium salts permit higher speeds to be achieved. In direct positive internal latent image forming emulsions nucleation activity and improved incubation stability can be achieved.
本发明公开了硫代氨基和炔基取代杂环铵盐在卤化银感光元件中生成图像中的用途。 硫代氨基和炔基取代杂环铵盐可以掺入感光卤化银乳剂中。 硫代氨基取代基能够促进这些盐吸附到卤化银颗粒表面。 在负工作表面潜影形成乳剂中,硫代氨基和炔基取代杂环铵盐可以实现更高的速度。 在直接正内部潜影形成乳剂中,可以实现成核活性并提高孵育稳定性。