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    • 1. 发明授权
    • Color reversal photographic light-sensitive materials
    • 彩色反转照相感光材料
    • US4614707A
    • 1986-09-30
    • US702564
    • 1985-02-19
    • Munehisa FujitaYasuhiro HayashiTakashi OzawaNobutaka Ohki
    • Munehisa FujitaYasuhiro HayashiTakashi OzawaNobutaka Ohki
    • G03C5/50G03C7/20G03C7/26G03C7/392G03C1/02G03C1/46
    • G03C7/39216
    • A color reversal photographic light-sensitive materials comprising a base having thereon (a) at least one light-sensitive silver halide emulsion layer containing a dye forming coupler and (b) a silver halide emulsion layer substantially without light-sensitivity provided adjacent to said light-sensitive layer, or (a) at least one light-sensitive silver halide emulsion layer containing a dye forming coupler, (b) a silver halide emulsion layer substantially without light-sensitivity to light, and (c) an intermediate layer therebetween, wherein said intermediate layer or said silver halide emulsion layer substantially without light-sensitivity, or both said intermediate layer and said silver halide emulsion layer substantially without light-sensitivity contain at least one compound represented by the following formula (I): ##STR1## wherein R.sup.1 and R.sup.2, which may be the same or different, each represents a hydrogen atom or a group having 1 to 10 carbon atoms capable of being hydrolyzed with alkali, R.sup.3, R.sup.4 and R.sup.5 each represents a hydrogen atom, a sulfo group, a carboxyl group, a sulfoalkyl group having 1 to 6 carbon atoms, a carboxyalkyl group having 1 to 6 carbon atoms or an alkyl group having 1 to 22 carbon atoms, provided that at least one of R.sup.3, R.sup.4 and R.sup.5 is a group selected from a sulfo group, a carboxyl group, a sulfoalkyl group and a carboxyalkyl group, and at least one of R.sup.3, R.sup.4 and R.sup.5 is an alkyl group.
    • 一种彩色反转照相感光材料,其包含其上具有(a)至少一种含有染料形成成色剂的感光卤化银乳剂层的基材和(b)基本上不含光敏感性的卤化银乳剂层,其邻近于所述光 敏感层,或(a)至少一种含有染料形成成色剂的感光卤化银乳剂层,(b)基本上对光没有光敏感性的卤化银乳剂层,和(c)它们之间的中间层,其中 所述中间层或所述卤化银乳剂层基本上不具有光敏性,或基本上没有光敏性的所述中间层和所述卤化银乳剂层都包含至少一种由下式(I)表示的化合物: )其中可以相同或不同的R 1和R 2各自表示氢原子或能够水解的具有1至10个碳原子的基团 碱,R3,R4和R5各自表示氢原子,磺基,羧基,具有1至6个碳原子的磺基烷基,具有1至6个碳原子的羧基烷基或具有1至22个碳原子的烷基 原子,条件是R3,R4和R5中的至少一个是选自磺基,羧基,磺基烷基和羧基烷基的基团,并且R 3,R 4和R 5中的至少一个是烷基。
    • 4. 发明授权
    • Direct positive photographic silver halide emulsion and color photographic light-sensitive material comprising same
    • 直接正性照相卤化银乳剂和含有它们的彩色照相感光材料
    • US06727056B2
    • 2004-04-27
    • US08915683
    • 1997-08-21
    • Munehisa FujitaAtsushi Matsunaga
    • Munehisa FujitaAtsushi Matsunaga
    • G03C1005
    • G03C8/10G03C1/0051G03C1/09G03C1/10G03C1/485G03C1/48569G03C2001/03535G03C2001/0357G03C2001/091G03C2200/59
    • The present invention provides a tabular internal latent image type direct positive photographic silver halide emulsion which provides a high sensitivity and a low re-reversal negative sensitivity and a color diffusion transfer photographic light-sensitive material comprising such an emulsion. The present invention also provides an internal latent image type direct positive photographic silver halide emulsion which can be prepared with a good reproducibility and a color diffusion transfer photographic light-sensitive material less susceptible to variation of sensitivity and S/N ratio comprising such an emulsion. An internal latent image type direct positive photographic silver halide emulsion comprising tabular silver halide grains having an average grain diameter of not less than 0.3 &mgr;m and an aspect ratio (diameter of silver halide grain in circle equivalence/thickness of silver halide grain) of from not less than 2 to not more than 100 in an amount of not less than 50% of all silver halide grains as calculated in terms of area is provided, wherein the average grain thickness a along the main plane of the external shell thereof is from not less than 0.2 &mgr;m to not more than 1.5 &mgr;m and the average grain thickness b perpendicular to the main plane of the external shell thereof is from not less than 0.04 &mgr;m to not more than 0.30 &mgr;m. An internal latent image type direct positive photographic silver halide emulsion is provided, which is prepared from a seed crystal emulsion which has been prepared via desalting process.
    • 本发明提供了提供高灵敏度和低反转负反应灵敏度的片状内部潜像型直接正性照相卤化银乳剂和包含这种乳液的彩色扩散转移照相感光材料。 本发明还提供了可以以良好的再现性制备的内部潜像型直接正性照相卤化银乳剂,并且颜色扩散转移照相感光材料不太容易受到包含这种乳液的敏感性和S / N比变化的影响。 包含平均粒径不小于0.3μm的平板状卤化银颗粒和纵横比(卤化银颗粒的直径等于或等于卤化物颗粒的厚度/卤化银颗粒的厚度)的内部潜像型直接正性照相卤化银乳剂 按照面积计算,以不低于所有卤化银颗粒的50%的量少于2至不超过100,其中沿其外壳的主平面的平均颗粒厚度a不小于 0.2μm以上且1.5μm以下,与外壳的主面垂直的平均粒径b为0.04μm以上且0.30μm以下。 提供了一种内部潜像型直接正性照相卤化银乳剂,其由通过脱盐方法制备的晶种乳液制备。
    • 5. 发明授权
    • Photothermo-or thermo-graphic material
    • 光热或热图形材料
    • US06312885B1
    • 2001-11-06
    • US09531421
    • 2000-03-20
    • Munehisa FujitaIchizo Toya
    • Munehisa FujitaIchizo Toya
    • G03C1498
    • G03C1/49872G03C1/053G03C1/7614
    • A photothermographic or thermographic material comprising a support having provided thereon or thereabove at least one image forming layer having its thermal expansion coefficient in the range of 1.0 to 1.5 and having provided on or above said at least one image forming layer a layer which has its thermal expansion coefficient of at least 0.9 and lower than 1.0 and comprises at least one kind of polymer latex having a glass transition temperature of not higher than a heat development temperature, said layer which has its thermal expansion coefficient of at least 0.9 and lower than 1.0 being farther from the support than the at least one image forming layer.
    • 一种光热照相或热成像材料,其包括在其上或其上设置有至少一个其热膨胀系数在1.0至1.5范围内的图像形成层的支撑件,并且在所述至少一个图像形成层上或上方提供具有其热 膨胀系数至少为0.9且低于1.0,并且包括玻璃化转变温度不高于显影温度的至少一种聚合物胶乳,所述热膨胀系数至少为0.9且低于1.0的所述层是 比支撑件远离至少一个图像形成层。
    • 6. 发明授权
    • Color diffusion transfer photographic material
    • 彩色扩散转印照相材料
    • US5447834A
    • 1995-09-05
    • US223822
    • 1994-04-04
    • Munehisa FujitaHiroyuki Asanuma
    • Munehisa FujitaHiroyuki Asanuma
    • G03C1/18G03C1/015G03C1/08G03C1/29G03C8/08G03C8/10G03C1/07G03C1/12
    • G03C1/015G03C1/29G03C8/10
    • A color photographic material for diffusion transfer which comprises a support having thereon at least one light-sensitive silver halide emulsion layer containing a combination of a reducible dye providing compound represented by the following general formula (I) and an electron donor, said reducible dye providing compound releasing a diffusing dye when reduced, wherein at least one layer of silver halide emulsion layers contains a silver halide emulsion obtained by treating a silver halide emulsion, previously chemical sensitized in the presence of a sensitizing dye, with a solid adsorbent to desorb a part or the whole of the adsorbed dye.PWR-(Time).sub.t -Dye (I)wherein PWR represents a group which releases -(Time).sub.t -Dye when reduced; Time represents a group which releases Dye through subsequent reactions after -(Time).sub.t -Dye is released from PWR; t represents an integer of 0 or 1; and Dye represents a dye or a precursor thereof.
    • 一种用于扩散转移的彩色照相材料,其包括其上具有至少一种含有由以下通式(I)表示的可还原染料提供化合物与电子给体的组合的感光卤化银乳剂层的支持体,所述可还原染料提供 化合物在还原时释放扩散染料,其中至少一层卤化银乳剂层含有卤化银乳剂,其通过处理预先在敏化染料存在下敏化的卤化银乳剂与固体吸附剂一起解吸一部分 或全部吸附染料。 PWR-(时间)t-染料(I)其中PWR表示当减少时释放 - (时间)t-染料的组; 时间表示在 - (时间)t-Dye从PWR释放后随后反应释放染料的组; t表示0或1的整数; 染料代表染料或其前体。
    • 7. 发明授权
    • Core/shell direct positive silver halide emulsion with silver halide
solvent removal
    • 核/壳直接正卤化银乳剂与卤化银溶剂去除
    • US5424168A
    • 1995-06-13
    • US287354
    • 1994-08-08
    • Munehisa FujitaHiroyuki Asanuma
    • Munehisa FujitaHiroyuki Asanuma
    • G03C1/015G03C1/035G03C1/07G03C1/485G03C8/08G03C8/44G03C8/10G03C1/10
    • G03C1/48576G03C8/08
    • There are disclosed an internal latent image type direct positive light-sensitive emulsions having improved spectral sensitization performance, and chemical sensitization performance, and color diffusion transfer photographic film units in which said emulsions are used. The emulsions are prepared by subjecting a silver halide grain, which forms an internal nucleus, to chemical sensitization, in the presence of an organic silver halide solvent, and adding a solid adsorbing agent, before finishing the formation of an outer shell silver halide phase, to remove a part or all of the silver halide solvent, wherein the emulsions may further contain a tabular silver halide grain having an average grain diameter of at least 0.3 .mu.m and a ratio of an average grain diameter to an average grain thickness of 2 or more, based on 50% or more of the total silver halide grains.
    • 公开了具有改善的光谱增感性能和化学增感性能的内部潜像型直接正性感光乳剂,以及其中使用所述乳液的色彩扩散转印照相胶片单元。 通过在形成内壳卤化银相之前,在有机卤化银溶剂的存在下,使形成内核的卤化银颗粒进行化学增感,并加入固体吸附剂来制备乳液, 以除去部分或全部卤化银溶剂,其中所述乳液还可以含有平均粒径为至少0.3μm的平板状卤化银颗粒,平均晶粒直径与平均晶粒厚度的比例为2或 更多,基于卤化银总量的50%以上。