公开(公告)号：US5998110A

公开(公告)日：1999-12-07

申请号：US965361

申请日：1997-11-06

Applicant: Filippo Faranda

Inventor： Filippo Faranda

IPC: G03C5/29 ,  G03C1/06 ,  G03C5/30 ,  G03C5/305

CPC classification number: G03C5/3021 ,  G03C1/067 ,  G03C5/3028 ,  G03C5/305

Abstract: A black-and-white aqueous alkaline photographic developer composition is described which is free of dihydroxybenzene developing agent and comprises a p-aminophenol primary developing agent and an auxiliary superadditive 3-pyrazolidone developing agent, wherein the p-aminophenol primary developing agent is represented by the following formula: ##STR1## wherein R.sub.1, and R.sub.2, which may be the same or different, each represents a hydrogen atom, an alkyl group, or R.sub.1, and R.sub.2 together represent the carbon atoms required to complete a 5-membered saturated ring, R.sub.3 represents a hydrogen atom, an alkyl group or an alkoxy group, n represents 0 or 1, and HX represents HCl or 1/2 H.sub.2 SO.sub.4.A process for forming a black-and-white photographic silver image comprising developing a silver halide photographic element with the black-and-white aqueous alkaline photographic developer composition is also described.

Abstract translation: 描述了一种黑色含水碱性照相显影剂组合物，其不含二羟基苯显影剂并且包含对氨基苯酚一级显影剂和辅助超加成型3-吡唑烷酮显影剂，其中对氨基苯酚一级显影剂由 下式：其中R 1和R 2可以相同或不同，各自表示氢原子，烷基或R 1，R 2一起表示完成5元饱和环所需的碳原子，R 3表示 氢原子，烷基或烷氧基，n表示0或1，HX表示HCl或+ E，fra 1/2 + EE H2SO4。 还描述了形成黑白照相银图像的方法，其包括用黑白水碱性照相显影剂组合物显影卤化银照相元件。

公开(公告)号：US5968720A

公开(公告)日：1999-10-19

申请号：US679745

申请日：1996-07-15

Applicant: Filippo Faranda ,  Franco Buriano ,  Carlo Marchesano

Inventor： Filippo Faranda ,  Franco Buriano ,  Carlo Marchesano

IPC: G03C5/26 ,  C09K3/00 ,  G03C5/38

CPC classification number: G03C5/386

Abstract: A photographic fixer compositions comprising a silver halide solvent, an aluminum salt hardening agent, a buffering agent and ammonium ions in amount of at least 0.20 mol/l, wherein said fixer composition also contains at least an aminopolycarboxylic acid sequestering agent of formula (I-a) or (I-b) or a water-soluble salt thereof and d) at least a polyphosphonic acid sequestering agent of formula (II-a), (II-b), (II-c), (II-d') or (II-d"): ##STR1## wherein the substituents are defined in the specification. The present invention also provides a method of processing an exposed photographic silver halide element comprising the steps of developing by means of a developer comprising a silver halide developing agent and treating the developed element with a fixer composition, wherein the fixer composition is one described above.

Abstract translation: 包含至少0.20mol / l的卤化银溶剂，铝盐硬化剂，缓冲剂和铵离子的照相定影剂组合物，其中所述定影剂组合物还含有至少一种式（Ia）的氨基多羧酸多价螯合剂， 或（Ib）或其水溶性盐，和d）至少一种式（II-a），（II-b），（II-c），（II-d'）或（II）的多膦酸多价螯合剂 -d“）：其中取代基在说明书中定义。 本发明还提供了一种处理曝光的照相卤化银元件的方法，包括以下步骤：利用包含卤化银显影剂的显影剂显影，并用定影剂组合物处理显影元件，其中定影剂组合物是上述的一种。

公开(公告)号：US5545508A

公开(公告)日：1996-08-13

申请号：US605248

申请日：1996-02-13

Applicant: Carlo Marchesano ,  Elda Moizo ,  Filippo Faranda

Inventor： Carlo Marchesano ,  Elda Moizo ,  Filippo Faranda

IPC: G03C1/06 ,  G03C5/29 ,  G03C5/30 ,  G03C5/305

CPC classification number: G03C5/305

Abstract: A process for forming a black-and-white high contrast negative photographic silver image by development of a silver halide photographic element with an aqueous alkaline photographic developer composition comprising a dihydroxybenzene developing agent, an auxiliary superadditive developing agent, an antifogging agent, an antioxidant compound, a combination of buffering agents and a sequestering agent, characterized by the fact that: a) the auxiliary developing agent is an aminophenol compound, b) the combination of buffering agents comprises at least a first buffering agent represented by carbonate compounds and at least a second buffering agent represented by phosphate compounds, the total amount of said first buffering agent and said second buffering agent being at least 35 grams per liter, band c) the pH of said aqueous alkaline photographic developer composition is in the range 9.0 to 11.0.

Abstract translation: 通过用含有二羟基苯显影剂，辅助超附加显影剂，防雾剂，抗氧化剂化合物的含水碱性照相显影剂组合物显影卤化银照相元件形成黑白高对比度负照相银图像的方法 ，缓冲剂和螯合剂的组合，其特征在于：a）辅助显影剂是氨基苯酚化合物，b）缓冲剂的组合包含至少一种由碳酸酯化合物表示的第一缓冲剂和至少一种 由磷酸盐化合物代表的第二缓冲剂，所述第一缓冲剂和所述第二缓冲剂的总量为至少35克/升，c）所述碱性水性摄影显影剂组合物的pH在9.0至11.0的范围内。

公开(公告)号：US5629138A

公开(公告)日：1997-05-13

申请号：US581450

申请日：1995-12-29

Applicant: Filippo Faranda ,  Elda Moizo ,  Carlo Marchesano

Inventor： Filippo Faranda ,  Elda Moizo ,  Carlo Marchesano

IPC: G03C5/38

CPC classification number: G03C5/38

Abstract: The present invention provides a fixer composition and a method of processing an exposed photographic silver halide element comprising the steps of developing by means of a developer comprising a silver halide developing agent and treating the developed element with a fixer composition, wherein the fixer composition comprises a silver halide solvent, a sulfite ion source, an aluminum salt hardening agent, a buffering agent, a sequestering agent and an .alpha.-ketocarboxylic acid compound in an amount of more than 2 grams per liter corresponding to the formula:R--CO--COOHwherein R represents a hydrogen atom or an organic group.

Abstract translation: 本发明提供了一种定影剂组合物和一种处理曝光的照相卤化银元件的方法，包括以下步骤：借助于包含卤化银显影剂的显影剂显影，并用定影剂组合物处理显影元件，其中定影剂组合物包含 卤化银溶剂，亚硫酸盐离子源，铝盐硬化剂，缓冲剂，多价螯合剂和α-酮羧酸化合物，其量超过2克/升，对应于式R-CO-COOH其中R 表示氢原子或有机基团。

公开(公告)号：US5478706A

公开(公告)日：1995-12-26

申请号：US206196

申请日：1994-03-03

Applicant: Carlo Marchesano ,  Filippo Faranda ,  Franco Buriano

Inventor： Carlo Marchesano ,  Filippo Faranda ,  Franco Buriano

IPC: G03C5/30 ,  G03C5/305 ,  G03C5/46

CPC classification number: G03C5/305 ,  G03C5/46

Abstract: The present invention relates to an alkaline aqueous black-and-white photographic developer composition comprising:(1) at least one black-and-white developing agent,(2) at least one black-and-white auxiliary developing agent,(3) at least one antifoggant,(4) at least one sequestering agent,(5) a sulfite antioxidant,(6) at least one buffering agent,(7) a tone agent, and(8) at least one tone promoting agent,wherein said tone agent is a primary organic amine compound and said tone promoting agent is a silver halide solvent.

Abstract translation: 本发明涉及一种碱性水性黑白照相显影剂组合物，其包含：（1）至少一种黑白显影剂，（2）至少一种黑白辅助显影剂，（3） 至少一种防灰雾剂，（4）至少一种螯合剂，（5）亚硫酸盐抗氧化剂，（6）至少一种缓冲剂，（7）调和剂，和（8）至少一种促压剂，其中所述 调色剂是主要的有机胺化合物，所述调色剂是卤化银溶剂。