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    • 7. 发明公开
    • Photothermographic material
    • 光热照相材料
    • EP1096310A2
    • 2001-05-02
    • EP00123310.5
    • 2000-10-26
    • FUJI PHOTO FILM CO., LTD.
    • Yoshioka, YasuhiroSuzuki, Makoto
    • G03C1/498
    • G03C1/49827G03C1/49863
    • Disclosed is a photothermographic material comprising, on one side of a support, a photosensitive silver halide, a non-photosensitive silver salt of an organic acid, a reducing agent for silver ions and a binder, which is characterized by containing one or more phenol compounds as the reducing agent and one or more compounds satisfying at least one of the following requirements A and B in combination:
      A: the hydrogen bond formation rate constant Kf is 20-4000,
      B: the chemical structure is represented by the following formula (II), (III), (IV) or (V) (R 21 and others represent an alkyl group etc.), or has a phosphoryl group. According to the present invention, there is provided a photothermographic material that can provide sufficient image density at practical reaction temperatures (specifically 100-140°C) with practical reaction times (specifically 1-30 seconds), and can sufficiently suppress coloration of blank portions during storage in the dark after development.
    • 公开了一种光热敏成像材料,其在载体的一面上包含感光卤化银,有机酸的非感光性银盐,银离子还原剂和粘合剂,其特征在于含有一种或多种酚化合物 作为还原剂和一种或多种满足以下要求A和B中的至少一个的化合物:A:氢键形成速率常数Kf为20-4000,B:化学结构由下式(II ),(III),(IV)或(V)(R 21等表示烷基等),或具有磷酰基。 根据本发明,提供了一种在实际反应温度(特别是100-140℃)和实际反应时间(特别是1-30秒)下可以提供足够的图像密度的光热照相材料,并且可以充分抑制毛坯部分的着色 在开发后在黑暗中储存。