公开(公告)号：US5310645A

公开(公告)日：1994-05-10

申请号：US957042

申请日：1992-10-06

申请人： Akihiko Ikegawa ,  Masayuki Kuramitsu ,  Masaki Okazaki

发明人： Akihiko Ikegawa ,  Masayuki Kuramitsu ,  Masaki Okazaki

IPC分类号： G03C1/14 ,  G03C1/18 ,  G03C1/29

CPC分类号： G03C1/18

摘要： Disclosed is a novel silver halide photographic material is provided comprising a support having thereon (a) a layer containing at least one methine compound represented by the following general formula (I) and (b) a layer containing at least one methine compound represented by the following general formula (II), (III), (IV) or (V): ##STR1## wherein the variables in the formulas are defined in the detailed description. In a preferred embodiment, the silver halide photographic material comprises at least one methine compound represented by general formula (I) and at least one methine compound represented by general formula (II) or (V) in the same layer.

摘要翻译： 公开了一种新型的卤化银照相材料，其包含其上具有的载体（a）含有由以下通式（I）表示的至少一种次甲基化合物的层和（b）含有至少一种由 按照通式（II），（III），（IV）或（V）：在详细描述中定义。 在优选的实施方案中，卤化银照相材料在同一层中包含至少一种由通式（I）表示的次甲基化合物和至少一种由通式（II）或（V）表示的次甲基化合物。

公开(公告)号：US5290676A

公开(公告)日：1994-03-01

申请号：US944314

申请日：1992-09-14

申请人： Katsurou Nagaoka ,  Akihiko Ikegawa ,  Masayuki Kuramitsu

发明人： Katsurou Nagaoka ,  Akihiko Ikegawa ,  Masayuki Kuramitsu

IPC分类号： G03C1/005 ,  G03C1/035 ,  G03C1/14 ,  G03C5/50

CPC分类号： G03C5/50 ,  G03C1/0051 ,  G03C1/035 ,  G03C1/14

摘要： Disclosed herein is a silver halide photographic light-sensitive material having at least one silver halide emulsion layer formed on a support. Said light-sensitive material having at least one layer contains a regular silver halide emulsion, a tabular silver halide emulsion containing tabular silver halide grains having an average diameter/average thickness ratio of 2 or more, which occupy 50% or more of the total projected area of all silver halide grains, and a silver halide emulsion containing internal latent-image silver halide grains each chemically sensitized to the depth of less than 0.02 .mu.m from the surface of the grain. Each of these emulsions contains at least one methine compound represented by the following formula (I): ##STR1## where R.sup.1 is --(CH.sub.2).sub.r --CONHSO.sub.2 --R.sub.3 or --(CH.sub.2).sub.s --SO.sub.2 NHCO--R.sub.4, where R.sup.3 and R.sup.4 are an alkyl group, r and s are an integer ranging from 1 to 5; R.sup.2 is a sulfoalkyl group; Z.sup.1 and Z.sup.2 are non-metal atom groups required for forming a 5- or 6-membered heterocyclic group; p and q are 0 or 1; L.sub.1, L.sub.2 and L.sub.3 are methine groups; and m is 0, 1 or 2, wherein said at least one methine compound has been added at 50.degree. C. or more in any step from a step of preparing of the emultion to a step of coating of the emulsion.

摘要翻译： 本文公开了一种卤化银照相感光材料，其在载体上形成有至少一个卤化银乳剂层。 具有至少一层的所述感光材料含有规则的卤化银乳剂，包含平均直径/平均厚度比为2或更大的片状卤化银颗粒的片状卤化银乳剂，其占总投影的50％或更多 所有卤化银颗粒的面积，以及含有内部潜像卤化银颗粒的卤化银乳剂，其每一种化学增感剂从晶粒表面的深度小于0.02（my）m。 这些乳液中的每一种含有至少一种下式（I）表示的次甲基化合物：（*化学结构*）式（I）其中R1为 - （CH2）r-CONHSO2-R3或 - （CH2）s-SO2NHCO- R4，其中R3和R4是烷基，r和s是1至5的整数; R2是磺基烷基; Z1和Z2是形成5或6元杂环基团所需的非金属原子团; p和q为0或1; L1，L2和L3是次甲基; 并且m为0,1或2，其中所述至少一种次甲基化合物在从制备所述乳液的步骤到所述乳液的涂布步骤的任何步骤中以50℃以上加入。