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    • 73. 发明授权
    • Silver halide photographic material and photographic image forming
method using the same
    • US5316889A
    • 1994-05-31
    • US41325
    • 1993-03-31
    • Minoru Sakai
    • Minoru Sakai
    • G03C1/06
    • G03C1/061
    • A silver halide photographic material comprising a support having thereon at least one light-sensitive silver halide emulsion layer, wherein at least one of the silver halide emulsion layer and a hydrophilic colloid layer(s) adjacent thereto contains at least one hydrazine compound represented by the following general formula (I) and at least one compound selected from the group consisting of compounds represented by the following general formula (II) and (III): ##STR1## wherein R.sub.1 represents an aliphatic or aromatic group which has a substituent having a moiety of --O(CH.sub.2 CH.sub.2 O).sub.n --, --O--(CH.sub.2 CH(CH.sub.3)O).sub.n -- or --O--(CH.sub.2 CH(OH)CH.sub.2 O).sub.n -- (wherein n is an integer of not smaller than 3) as part of a substituent or having a moiety of a quaternary ammonium cation as part of a substituent group, G.sub.1 represents a bivalent bonding group consisting of at least one of --CO--, --COCO--, --CS--, --C(.dbd.NG.sub.2 R.sub.2)--, --SO--, --SO.sub.2 -- or --P(O)(G.sub.2 R.sub.2)--; G.sub.2 represents a single bond, --O--, --S-- or --N(R.sub.2)--; R.sub.2 represents an aliphatic group, an aromatic group or a hydrogen atom, and when there are two or more R.sub.2 groups, they may be the same or different; and one of A.sub.1 and A.sub.2 is a hydrogen atom, and the other is a hydrogen atom, an acyl group or an alkyl- or arylsulfonyl group, when R.sub.1 contains said quaternary ammonium cation, the compound further has a counter anion or has an anion group at R.sub.1 to form an inner salt; ##STR2## wherein Y represents a group which is adsorbed to silver halide; X represents a bivalent bonding group comprising an atom or atoms selected from hydrogen, carbon, nitrogen, oxygen and sulfur atoms; A represents a bivalent bonding group; B represents an amino group which may be substituted, an ammonium group or a nitrogen-containing heterocyclic ring; m represents 1, 2 or 3; and n represents 0 or 1; ##STR3## wherein R.sub.1 and R.sub.2 each represents a hydrogen atom or an aliphatic group, or R.sub.1 and R.sub.2 may be combined together to form a ring; R.sub.3 represents a bivalent aliphatic group; X represents a bivalent heterocyclic ring having at least one of hetero-atoms of a nitrogen, oxygen or sulfur atoms; n represents 0 or 1; and M represents a hydrogen atom, an alkali metal atom, an alkaline earth metal atom, a quaternary ammonium, a quaternary phosphonium or an amidino group; x is 1 when M represents a monovalent atom or group and x is 1/2 when M represents a divalent atom; said compound may be in the form of an addition salt.
    • 76. 发明授权
    • Silver halide color photographic material having improved dye image
stability
    • 具有改善的染料影像稳定性的卤化银彩色照相材料
    • US5006453A
    • 1991-04-09
    • US181289
    • 1988-05-10
    • Osamu TakahashiMinoru SakaiGenichi FurusawaTsumoru Hirano
    • Osamu TakahashiMinoru SakaiGenichi FurusawaTsumoru Hirano
    • G03C7/32G03C7/388
    • G03C7/3225G03C7/3882
    • The present inventioin calls for a silver halide color photographic material comprising a support having thereon at least one silver halide photographic emulsion layer containing a dispersion of oleophilic fine particles containing at least one diffusion resistant oil-soluble coupler which forms a substantially nondiffusible dye upon coupling with an oxidation product of an aromatic primary amine developing agent and at least one water-immiscible coupler solvent having a melting point of not more than 100.degree. C. and a boiling point of not less than 140.degree. C., wherein said oil-soluble coupler is represented by formula (Cp-I), (Cp-II) or (Cp-III) the dispersion of oleophilic fine particles is a dispersion obtained by emulsifying or dispersing a mixture containing at least one of the above couplers, at least one of the above coupler solvents and at least one water-insoluble and organic solvent-soluble homopolymer or copolymer composed of at least one repeating unit which does not have an acid group in the main chain or side chain thereof.The silver halide color photographic material can provide dye images, the prevention from light fading and dark fading of which is well balanced, and which exhibit excellent image preservability when exposed to high temperature and high humidity as well as when exposed to light.
    • PCT No.PCT / JP87 / 00492 Sec。 371日期:1988年5月10日 102(e)日期1988年5月10日PCT提交1987年7月9日PCT公布。 公开号WO88 / 00723 日本一月28日。本发明要求一种卤化银彩色照相材料,其中包含一种载体,其上具有至少一个卤化银照相乳剂层,其含有含有至少一种可扩散的油溶性成色剂的亲油性细颗粒的分散体, 当与芳族伯胺显影剂的氧化产物和至少一种熔点不超过100℃且沸点不低于140℃的水不混溶成色剂溶剂偶合时,基本上不扩散的染料。 其中所述油溶性成色剂由式(Cp-I),(Cp-II)或(Cp-III)表示),亲油性细颗粒的分散体是通过乳化或分散含有至少一种 上述成色剂,至少一种上述成色剂溶剂和至少一种由至少一种重复单元组成的水不溶性和有机溶剂可溶性均聚物或共聚物 ch在其主链或侧链中不具有酸基。 卤化银彩色照相材料可以提供染料图像,防止光褪色和暗淡褪色均衡,并且当暴露于高温和高湿度以及暴露于光时显示出优异的图像保存性。