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    • 70. 发明公开
    • Silver halide photographic material
    • 卤化银照相材料
    • EP1220022A2
    • 2002-07-03
    • EP01130257.7
    • 2001-12-20
    • FUJI PHOTO FILM CO., LTD.
    • Yasuda, Shoji
    • G03C1/06
    • G03C1/061G03C1/06G03C1/34G03C1/346G03C5/02G03C7/3041G03C7/305G03C2200/26
    • A silver halide photographic material is disclosed, comprising a support having provided thereon at least a silver halide emulsion layer, which contains at least one compound represented by the following formula (I), and has a characteristic curve of gamma value being 5.0 or more in optical density of from 0.3 to 3.0 on the characteristic curve shown on the orthogonal axis of coordinates having equal unit length expressed by logarithmic exposure amount (x axis) and optical density (y axis) : (X) 1 -(L) m -(A-B) n wherein X represents a silver halide-adsorptive group having at least one of N, S, P, Se and Te atom, or a light absorptive group; L represents a divalent linking group having at least one of C, N, S and O atom; A represents an electron donative group; B represents a releasing group or a hydrogen atom, which forms radical A by releasing or deproton after oxidation; 1 and m each represents an integer of from 0 to 3; and n represents 1 or 2.
    • 公开了一种卤化银照相材料,该材料包括一种载体,该载体上至少有一层卤化银乳剂层,该卤化银乳剂层含有至少一种由下式(I)表示的化合物,其γ值为5.0或更大 在由对数曝光量(x轴)和光密度(y轴)表示的具有相等单位长度的坐标的正交轴上所示的特性曲线上的光密度为0.3至3.0:(X)1-(L)m- AB)n其中X代表具有N,S,P,Se和Te原子中至少一个的卤化银吸附基团或光吸收基团; L表示具有C,N,S和O原子中的至少一个的二价连接基团; A代表电子给体组; B代表释放基团或氢原子,其在氧化后通过释放或去质子化形成自由基A; 1和m各自表示0至3的整数; 并且n表示1或2。