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    • 5. 发明授权
    • Method for bleaching color photosensitive material
    • 彩色感光材料漂白方法
    • US4508816A
    • 1985-04-02
    • US544155
    • 1983-10-21
    • Kiyohiko YamamuroShigeo HiranoIsamu ItohYasuo Iwasa
    • Kiyohiko YamamuroShigeo HiranoIsamu ItohYasuo Iwasa
    • C07D257/04C07D285/12C07D285/125G03C7/42G03C7/00G03C5/44
    • C07D257/04C07D285/125G03C7/421
    • An improved method for bleaching color photosensitive materials with a persulfate is provided. This method is free of offensive odors, can bleach efficiently color photosensitive materials containing a large amount of silver by using a persulfate, and can effectively bleach color photosensitive materials having colloidal silver layers by using a persulfate. The color photosensitive material used in the present invention contains at least one of the compounds represented by the formula I, salts thereof and precursors thereof: ##STR1## where R.sup.1 and R.sup.2 each independently represents a hydrogen atom, or an aliphatic residue and R.sup.1 and R.sup.2 may form a ring together with the N atom; R.sup.3 represents --R.sup.4 -- or --R.sup.4 --S, said --R.sup.4 -- being a divalent aliphatic residue; and X represents a divalent heterocyclic ring residue containing at least one atom selected from the group consisting of a nitrogen atom, an oxygen atom, and a sulfur atom.
    • 提供了一种用过硫酸盐漂白色彩感光材料的改进方法。 该方法没有恶臭,可以通过使用过硫酸盐有效地漂白含有大量银的感光材料,并且可以通过使用过硫酸盐有效地漂白具有胶体银层的彩色感光材料。 本发明中使用的着色光敏材料含有至少一种式I表示的化合物及其盐及其前体:其中R 1和R 2各自独立地表示氢原子,或脂族残基和R 1 R2可以与N原子一起形成环; R3表示-R4-或-R4-S,所述-R4-为二价脂族残基; X表示含有至少一个选自氮原子,氧原子和硫原子的原子的二价杂环残基。
    • 6. 发明授权
    • Direct positive photographic materials and a method of forming direct
positive images
    • 直接的正性照相材料和形成直接正像的方法
    • US4948712A
    • 1990-08-14
    • US184552
    • 1988-06-07
    • Noriyuki InoueTatsuo HekiHidetoshi KobayashiNaoyasu DeguchiShigeo Hirano
    • Noriyuki InoueTatsuo HekiHidetoshi KobayashiNaoyasu DeguchiShigeo Hirano
    • G03C7/30
    • G03C7/3022G03C2200/20G03C7/3029Y10S430/156
    • The invention provides (1) direct positive photographic photosensitive materials in which at least one type of FR compound which releases fogging agent or development accelerator or a precursor thereof in accordance with the amount of silver developed when the silver halide is being developed is included in a direct positive photographic material comprising at least one layer of non-pre-fogged internal latent image type silver halide emulsion on a support, and (2) a method of forming direct positive images of which the distinguishing features are that in a method for the formation of direct positive images in which a direct positive photographic photosensitive material comprising at least one layer of non-pre-fogged internal latent image forming silver halide emulsion on a support is processed, after image exposure, in a surface developer, at least one type of FR compound which releases fogging agent or development accelerator or precursors thereof is included in the said photographic mateiral, and that the said photosensitive material is subjected to a fogging process and to a development process during and/or after the said fogging process.It is possible by means of this invention to obtain direct positive photographic materials which have excellent stability with respect to the passage of time and especially good stability with respect to the passage of time under conditions of high temperature and high humidity.Moreover, it is possible to obtain direct positive photographic materials and a method of forming direct positive images which have a high maximum image density and a high resolving power.Moreover, it is possible to obtain direct positive photographic materials and a method of forming direct positive images with which direct positive images which have a satisfactorily high color density can be obtained, even on processing in highly stable developers of low pH.
    • 9. 发明授权
    • Photothermographic material and method for forming images
    • 光热成像材料和形成图像的方法
    • US06593069B2
    • 2003-07-15
    • US09809024
    • 2001-03-16
    • Toyohisa OyaKazunobu KatohShigeo Hirano
    • Toyohisa OyaKazunobu KatohShigeo Hirano
    • G03C134
    • G03C1/49845G03C1/49827G03C7/305Y10S430/166
    • A photothermographic material comprising at least (a) a photosensitive silver halide, (b) a reducible silver salt, (c) a reducing compound represented by the following formula (1) or (2), (d) a binder and (e) a coupler compound on the same side of a support: wherein, in the formula (1), V1 to V4 each independently represent hydrogen atom or a substituent, and V5 represents a substituted or unsubstituted alkyl group, aryl group or heterocyclic group: Q1—NHNH—V6  (2) wherein, in the formula (2), Q1 represents a 5- to 7-membered unsaturated ring bonding to NHNH—V6 at a carbon atom, and V6 represents a carbamoyl group, an acyl group, an alkoxycarbonyl group, an aryloxycarbonyl group, a sulfonyl group or a sulfamoyl group. The photothermographic material of the present invention shows good photographic properties including sensitivity, fog and so forth, and enables control of color tone of the photothermographic material in an arbitrary wavelength region even as a monosheet type photothermographic material.
    • 一种光热成像材料,其至少包含(a)感光卤化银,(b)可还原的银盐,(c)由下式(1)或(2)表示的还原化合物,(d)粘合剂和(e) 其中在式(1)中,V1至V4各自独立地表示氢原子或取代基,V5表示取代或未取代的烷基,芳基或杂环基:其中, 在式(2)中,Q1表示在碳原子上与NHNH-V6键合的5至7元不饱和环,V 6表示氨基甲酰基,酰基,烷氧基羰基,芳氧基羰基,磺酰基 或氨磺酰基。本发明的光热敏成像材料显示出良好的照相性质,包括灵敏度,雾度等,并且即使作为单片型光热敏成像材料也能够控制光热成像材料在任意波长区域中的色调。
    • 10. 发明授权
    • Heat-developable recording material
    • 热显影记录材料
    • US06358677B1
    • 2002-03-19
    • US09528450
    • 2000-03-17
    • Masahiko TaniguchiKatsuyuki WatanabeShigeo HiranoMinoru Sakai
    • Masahiko TaniguchiKatsuyuki WatanabeShigeo HiranoMinoru Sakai
    • G03C1498
    • G03C1/49845
    • A heat-developable recording material having, at least on one side and the same side of the support, (a) reducible silver salt, (b) a reducing agent other than a compound represented by the general formula (1) below, (c) a binder, and (d) at least one compound represented by the general formula (1) below; content of the compound represented by the general formula (1) being 0.01 to 100 mol % with respect to the reducing agent: [where in the general formula (1), R1, R2, R3, X1 and X2 independently represent a hydrogen atom; halogen atom; or substituent which is bound to the benzene ring via a carbon atom, oxygen atom, nitrogen atom, sulfur atom or phosphorus atom. At least either X1 or X2 represents a group represented as —NR4R5, where R4 and R5 independently represent a group selected from a hydrogen atom, alkyl group and the like.]
    • (a)可还原银盐,(b)除了下述通式(1)表示的化合物以外的还原剂,(c)的可热显影记录材料,至少在一个侧面和同一侧上,(c) )粘合剂,和(d)至少一种由下述通式(1)表示的化合物; 通式(1)表示的化合物的含量相对于还原剂为0.01〜100摩尔%[其中,在通式(1)中,R 1,R 2,R 3,X 1和X 2独立地表示氢原子; 卤素原子; 或通过碳原子,氧原子,氮原子,硫原子或磷原子与苯环结合的取代基。 X 1或X 2中至少有一个表示为-NR 4 R 5的基团,其中R 4和R 5独立地表示选自氢原子,烷基等的基团。