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1.发明公开Black-and-white developing compositions and methods of use 审中-公开Schwarz-Weiss-Entwicklerzusammensetzungen und Verfahren zu ihrer Verwendung
公开(公告)号：EP1227366A1
公开(公告)日：2002-07-31
申请号：EP02075128.5
申请日：2002-01-14
CPC分类号： G03C5/305 , G03C1/34 , G03C5/16 , G03C5/266 , G03C2200/21 , G03C2200/42
摘要： A concentrated black-and-white photographic developing composition has improved stability, is compatible with the environment and provides desired sensitometric properties with a combination of particular antifoggants. These antifoggants include a mercapto-substituted tetrazole and a benzimidazole that has one or more electron withdrawing groups. This concentrated composition can be used as a first "part" and mixed, upon dilution, with a diluted second "part" that is a concentrated composition of a gelatin hardening agent. When mixed together, the two diluted concentrates form a working strength developing composition that can be used to provide black-and-white images in various photographic silver halide materials, and particularly in radiographic films.
摘要翻译： 浓缩的黑白照相显影组合物具有改善的稳定性，与环境相容并且提供具有特定防雾剂组合的期望的感光特性。 这些防雾剂包括巯基取代的四唑和具有一个或多个吸电子基团的苯并咪唑。 该浓缩组合物可以用作第一“部分”，并在稀释后用稀释的第二部分混合，稀释的第二部分是明胶硬化剂的浓缩组合物。 当混合在一起时，两种稀释的浓缩物形成加工强度显影组合物，其可用于在各种照相卤化银材料中，特别是在放射照相胶片中提供黑白图像。
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2.发明公开
公开(公告)号：EP0982626A1
公开(公告)日：2000-03-01
申请号：EP99202629.4
申请日：1999-08-12
发明人： Fitterman, Alan Shael, Eastman Kodak Company , Haye, Shirleyanne Elizabeth, Eastman Kodak Company , Huston, Janet Marie, Eastman Kodak Company , Rachel, Joan Florence, Eastman Kodak Company
CPC分类号： G03C5/305 , G03C1/0051 , G03C1/832 , G03C5/16 , G03C2005/168 , G03C2200/34
摘要： Black-and-white elements, such as radiographic films, can be processed rapidly using a black-and-white developing composition containing a hydroquinone developing agent, and specific amounts of sulfite and borate ions. Thus, the molar ratio of sulfite ions to borate ions is less than 20:1, and the molar ratio of sulfite ions to the hydroquinone developing agent is from 1:1 to 2.5:1. The developing composition is effective, rapid and stable.
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