神武天皇专利名称：Novel photographic developing solution and u thereof in the high contrast
development of nucleated photographic
elements绩效工资
嘴唇发黑是什么原因
发明人：Purol, Michael Dennis, c/o Eastman Kodak Company,Zielinski, Paul Anthony, c/o
Eastman Kodak Company,Kerr, Donald
推测Laurens, c/o Eastman Kodak Company
申请号：EP93420143.5
申请日：19930402
心手相应公开号：EP0565459A3
道德经全文完整公开日：
郊区英文19941026
专利内容由知识产权出版社提供
摘要：An improved photographic developing solution is free of dihydroxybenzene developing agents such as hydroquinone, has a pH in the range of from 9.5 to 11.5 and compris (1) an ascorbic acid developing agent, (2) an auxiliary super-additive developing agent and (3) a carbonate buffering agent in a concentration of at least 0.5 molar. The developing solution is broadly uful in black-and-white development but is most advantageously employed in a process for forming a high-contrast image utilizing a silver halide photographic element comprising a hydrazine compound which functions as a nucleating agent and an amino compound which functions as an incorporated booster.
The developing solution is ecologically advantageous, exhibits excellent stability with respect to asoning effects, and provides high speed and good upper scale contrast combined with a low level of pepper fog and a moderate degree of chemical spread.
房屋测量
申请人：EASTMAN KODAK COMPANY
地址：343 State Street Rochester, New York 14650-2201 US 国籍：US
代理机构：Parent, Yves
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