发明名称 High contrast continuous tone developer and process of use
摘要 A photographic developer containing hydroquinone, an auxiliary developer such as phenidone, and high sulfite is formulated using an organic base such as diethanolamine. This is useful for processing litho film in rapid access machine processors to produce high contrast line and half-tone dot images from films processed therein.
申请公布号 US4172728(A) 申请公布日期 1979.10.30
申请号 US19770861184 申请日期 1977.12.16
申请人 DU PONT DE NEMOURS, E I & 发明人 PANGRATZ, WILLIAM R;SINCIUS, JOSEPH A
分类号 G03C5/29;G03C5/30;G03C5/305;(IPC1-7):G03C5/30;G03C5/32 主分类号 G03C5/29
代理机构 代理人
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