公开(公告)号：US5318881A

公开(公告)日：1994-06-07

申请号：US020983

申请日：1993-02-22

Applicant: Marco Bucci ,  Carlo Marchesano ,  Dino Ferrari ,  Carlo Illuminati

Inventor： Marco Bucci ,  Carlo Marchesano ,  Dino Ferrari ,  Carlo Illuminati

IPC: G03C1/00 ,  F02B75/02 ,  G03C1/005 ,  G03C1/30 ,  G03C5/16 ,  G03C5/26 ,  G03C5/29 ,  G03C5/305 ,  G03C5/38

CPC classification number: G03C1/0051 ,  G03C5/16 ,  G03C5/26 ,  G03C5/38 ,  F02B2075/027 ,  Y10S430/164 ,  Y10S430/167

Abstract: This invention relates to a method of processing an image-wise exposed silver halide photographic material wherein said method comprises the following steps:(a) developing the photographic material for 5 to 15 seconds in an aqueous developing solution,(b) fixing the photographic material for 5 to 15 seconds in an aqueous fixing solution, and(c) washing the photographic material for 5 to 20 seconds,wherein both said developing and fixing solutions are free of gelatin hardeners.The method is particularly intended for use in processing radiographic films which:comprise a support and silver halide emulsion layer or layers, at least one of said silver halide emulsion layers containing tabular silver halide grains having an average diameter to thickness ratio of at least 3:1 and highly deionized gelatin, andshow a swelling index lower than 140% and a melting time of from 45 to 120 minutes.The method shows the advantages of lower environmental pollution and shorter processing times.

Abstract translation: 本发明涉及一种处理成像曝光的卤化银照相材料的方法，其中所述方法包括以下步骤：（a）在含水显影液中显影照相材料5至15秒，（b）将照相材料 在固定水溶液中5至15秒，和（c）将照相材料洗涤5至20秒，其中所述显影剂和定影液均不含明胶固化剂。 该方法特别用于处理放射线照相胶片，其包括载体和卤化银乳剂层，至少一种所述卤化银乳剂层含有平均粒径与厚度之比至少为3:1的片状卤化银颗粒， 1和高度去离子明胶，并且表现出低于140％的溶胀指数和45至120分钟的熔融时间。 该方法显示出较低的环境污染和较短的加工时间的优点。

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：US4777118A

公开(公告)日：1988-10-11

申请号：US10770

申请日：1987-02-04

Applicant: Jonathan P. Kitchin ,  Carlo Marchesano

Inventor： Jonathan P. Kitchin ,  Carlo Marchesano

IPC: G03C1/06 ,  G03C1/42 ,  G03C5/26

CPC classification number: G03C1/061 ,  G03C2001/108 ,  G03C2200/44 ,  Y10S430/15

Abstract: High contrast negative images are obtained by developing a silver halide photographic element, in the presence of a hydrazine compound, with an alkali aqueous developing solution which contains a combination of developing agent comprising hydroquinone or substituted hydroquinone and a superadditive developing agent and an antioxidant, wherein the developing solution has a pH lower than about 12 and wherein the silver halide photographic element comprises an emulsion layer including surface latent image negative type silver halide grains in reactive association with a contrast promoting agent, preferably a diarylcarbinol compound, more preferably a diarylmethanol compound in a quantity useful to increase contrast.

Abstract translation: 通过在肼化合物的存在下，通过在含有显影剂与氢醌或取代对苯二酚和超附加显影剂和抗氧化剂的组合的碱性水性显影液中显影卤化银照相元件，获得高对比度负像，其中 显影液的pH低于约12，其中卤化银照相元件包括乳剂层，其包含与对比促进剂，优选二芳基甲醇化合物反应性相关的表面潜像负型卤化银颗粒，更优选二芳基甲醇化合物 一个有用的增加对比度的数量。

公开(公告)号：US4232113A

公开(公告)日：1980-11-04

申请号：US20313

申请日：1979-03-14

Applicant: Carlo Marchesano

Inventor： Carlo Marchesano

IPC: G03C5/26 ,  G03C5/30

CPC classification number: G03C5/266

Abstract: Developer for use in color photography confectioned in a plurality of concentrated compositions in which one first concentrated composition is a liquid composition substantially free of water including the p-phenylenediamine compound, and possibly other components of the developer such as antioxidants, dissolved in an organic solvent.

Abstract translation: 用于彩色摄影的显影剂，其包含多个浓缩组合物，其中一个第一浓缩组合物是基本上不含水的液体组合物，包括对苯二胺化合物，以及溶解在有机溶剂中的显影剂如抗氧化剂的其它组分 。

公开(公告)号：US4756997A

公开(公告)日：1988-07-12

申请号：US76078

申请日：1987-07-21

Applicant: Carlo Marchesano

Inventor： Carlo Marchesano

IPC: G03C5/30 ,  G03C5/305 ,  G02C1/06

CPC classification number: G03C5/305

Abstract: An aqueous alkaline photographic silver halide developer composition comprising a dihydroxy benzene developing agent, an auxiliary superadditive developing agent, an antifogging agent, an antioxidant and a buffering agent, characterized by the fact that the composition further comprises a stabilizing amount of an .alpha.-ketocarboxylic acid.The developer composition has a better resistance against air oxidation and can be left in continuous transport automatic processors for several days without undergoing any substantial decrease of its developing properties.The developer composition is particularly useful in a process for the formation of a high contrast silver image by developing silver halide photographic elements including at least a negative acting surface latent image type silver halide emulsion in the presence of a hydrazine compound, preferably in the additional presence of an effective amount of a contrast promoting agent.

Abstract translation: 一种包含二羟基苯显影剂，辅助超附加显影剂，防雾剂，抗氧化剂和缓冲剂的碱性照相卤化银显影剂组合物，其特征在于该组合物还包含稳定量的α-酮羧酸 。 显影剂组合物具有更好的抗空气氧化性能，并且可以在连续输送的自动加工机中保留数天，而不会显着降低其显影性能。 显影剂组合物特别可用于通过在肼化合物的存在下显影卤化银照相元件至少包含负性表面潜像型卤化银乳剂，优选在另外的存在下形成高对比度银影像的方法 的有效量的对比促进剂。

公开(公告)号：US4693956A

公开(公告)日：1987-09-15

申请号：US798751

申请日：1985-11-15

Applicant: Carlo Marchesano

Inventor： Carlo Marchesano

IPC: G03C1/06 ,  G03C1/34 ,  G03C5/29 ,  G03C5/305 ,  G03C5/24 ,  G03C1/00 ,  G03C5/30

CPC classification number: G03C5/305 ,  Y10S430/15

Abstract: A process is disclosed for forming a high-contrast photographic image by developing a silver halide photographic element, including at least a silver halide emulsion layer, with an aqueous alkaline developing solution containing a dihydroxybenzene developing agent, a superadditive developing agent and an antioxidant at a pH of less than 12 in the presence of a hydrazine compound, an organic antifogging and contrast promoting agent selected within the class including a benzotriazole compound and a benzimidazole compound and a non polymeric hydroxymethylidyne group containing compound of formula: ##STR1## wherein R.sub.1 and R.sub.2 each independently represent a hydrogen atom, an aliphatic group, an aromatic group, a heterocyclic group, or R.sub.1 and R.sub.2 together complete a non aromatic cyclic group.

Abstract translation: 公开了一种用于通过用含有二羟基苯显影剂的含水碱性显影液，超附加显影剂和抗氧化剂的卤化银照相元件（包括至少一种卤化银乳剂层）显影来形成高对比度照相图像的方法 在肼化合物的存在下，pH小于12，在包括苯并三唑化合物和苯并咪唑化合物的类别中选择的有机防雾和对比度促进剂和含有下式的非聚合羟基亚甲基的化合物：其中R1和R2 各自独立地表示氢原子，脂肪族基团，芳香族基团，杂环基团，或者R 1和R 2一起完成非芳族环状基团。

公开(公告)号：US4501812A

公开(公告)日：1985-02-26

申请号：US576349

申请日：1984-02-02

Applicant: Carlo Marchesano

Inventor： Carlo Marchesano

IPC: G03C7/30 ,  G03C5/26 ,  G03C5/30 ,  G03C5/24

CPC classification number: G03C5/266

Abstract: Color developer composition packaged in two or more concentrated parts, which on mixing with water give a ready-for-use silver halide developer solution, one part thereof comprising an aqueous concentrated solution containing a N-hydroxyalkylsubstituted p-phenylene diamine salt developing agent and a sulfite compound, said aqueous concentrated solution having a pH from 6 to 8. In particular, said N-hydroxyalkyl-substituted p-phenylene diamine developing agent is a 4-amino-3-methyl-N-ethyl-N-(.beta.-hydroxyethyl)-aniline and the molar ratio of the sulfite compound to the developing agent is higher than 1.5:1.

Abstract translation: 包装在两个或更多个浓缩部分中的彩色显影剂组合物，其在与水混合时产生即用型卤化银显影剂溶液，其一部分包含含有N-羟烷基取代的对苯二胺盐显影剂的水性浓缩溶液和 所述N-羟烷基取代的对苯二胺显影剂特别是4-氨基-3-甲基-N-乙基-N-（β-羟乙基 ） - 苯胺，亚硫酸盐化合物与显影剂的摩尔比高于1.5：1。

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：US4987060A

公开(公告)日：1991-01-22

申请号：US498208

申请日：1990-03-23

Applicant: Carlo Marchesano

Inventor： Carlo Marchesano

IPC: G03C5/30 ,  G03C5/26 ,  G03C5/29

CPC classification number: G03C5/29 ,  G03C5/266

Abstract: A concentrated alkaline photographic developer composition, packaged in a single part to be diluted with water to form a ready to use developing solution for silver halide photographic materials, which comprises dihydroxybenzene developing agents, inorganic alkali agnets, inorganic antioxidant agents, sequestering agents and antifoggants, wherein said inorganic antioxidant agents comprise Na.sub.2 SO.sub.3 (sodium sulfite) and K.sub.2 SO.sub.3 (potassium sulfite) in a molecular ratio of 1:1 to 1:3 in an amount of from 1.6 to 4 moles per liter, the molecular ratio between said inorganic antioxidant agents and the developing agents is from 1.50 and 4.00, and said concentrated developer composition has a specific gravity higher than 1.300 at 20.degree. C., anda method of making a concentrated alkaline photographic developer composition, packaged in a single part to be diluted with water to form a ready to use developing solution for silver halide photographic materials, which comprises dihydroxybenzene developing agents, inorganic alkali agents, inorganic antioxidant agents, sequestering agents and antifoggants, characterized in that comprises the following steps:(a) preparing an aqueous KOH concentrated solution having a specific gravity not higher than 1.110 at 20.degree. C.,(b) adding to the resulting solution inorganic antioxidant agents which form sulfite anions (SO.sub.3.sup.--) in aqueous solution, at least half in moles of which being NA.sub.2 S.sub.2 O.sub.5 (sodium metabisulfite), in a quantity of from 0.8 to 2 moles per liter,(c) adding to the resulting solution further aqueous KOH concentrated solution until the specific gravity of the resulting solution is .gtoreq.1.175 at 20.degree. C.,(d) adding to the resulting solution developing agents in such a quantity that the molecular ratio between said inorganic antioxidant agents and the developing agents is from 1.5 to 4.00, and(e) adding the other components of the developer composition in such a quantity to obtain a concentrated developer composition having a specific gravity higher than 1.300 at 20.degree. C.

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。