发明名称 |
Development processing method of ultrahigh-contrast black-and-white silver halide photographic material |
摘要 |
A development processing method is described, which includes the steps of (a) exposing an ultrahigh-contrast silver halide photographic material comprising a support having thereon at least one light-sensitive silver halide emulsion layer and (b) developing the exposed silver halide photographic material with a developer while the developer is replenished with a development replenisher, wherein the developer and the development replenisher each contains a dihydroxybenzene developing agent and an auxiliary developing agent exhibiting a superadditive property to the dihydroxybenzene developing agent, and both the developer and the development replenisher have such a property that an increase of the pH is 0.25 or less when 0.1 mol of sodium hydroxide is added to 1 liter thereof; the developer has a pH from 9.5 up to but excluding 11.0; and the developer replenisher is added in an amount of 225 ml/m2 or less.
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申请公布号 |
US5798204(A) |
申请公布日期 |
1998.08.25 |
申请号 |
US19960766934 |
申请日期 |
1996.12.16 |
申请人 |
FUJI PHOTO FILM CO., LTD. |
发明人 |
FUKUI, KOUTA;HIRANO, MITSUNORI;INOUE, NOBUAKI |
分类号 |
G03C1/06;G03C5/26;G03C5/30;G03C5/305;G03C5/31;(IPC1-7):G03C5/18;G03C1/00 |
主分类号 |
G03C1/06 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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