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WO1995000881A1 - Composition de revelateur photographique sans hydroquinone et procede de traitement - Google Patents

Composition de revelateur photographique sans hydroquinone et procede de traitement Download PDF

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Publication number
WO1995000881A1
WO1995000881A1 PCT/US1994/006353 US9406353W WO9500881A1 WO 1995000881 A1 WO1995000881 A1 WO 1995000881A1 US 9406353 W US9406353 W US 9406353W WO 9500881 A1 WO9500881 A1 WO 9500881A1
Authority
WO
WIPO (PCT)
Prior art keywords
acid
ascorbic acid
amount
alkali metal
developer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/US1994/006353
Other languages
English (en)
Inventor
Haixing Wan
Diane Zhang
David Carlson
Alan A. Bornstein
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fujifilm Hunt Chemicals USA Inc
Original Assignee
Fujifilm Hunt Chemicals USA Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fujifilm Hunt Chemicals USA Inc filed Critical Fujifilm Hunt Chemicals USA Inc
Priority to JP7502861A priority Critical patent/JPH09500221A/ja
Priority to AU10922/95A priority patent/AU689168C/en
Priority to EP94919380A priority patent/EP0738400B1/fr
Priority to DE69426780T priority patent/DE69426780T2/de
Priority to AT94919380T priority patent/ATE199461T1/de
Publication of WO1995000881A1 publication Critical patent/WO1995000881A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C5/00—Photographic processes or agents therefor; Regeneration of such processing agents
    • G03C5/26—Processes using silver-salt-containing photosensitive materials or agents therefor
    • G03C5/29—Development processes or agents therefor
    • G03C5/30—Developers
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C1/00—Photosensitive materials
    • G03C1/005—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein
    • G03C1/06—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein with non-macromolecular additives
    • G03C1/061—Hydrazine compounds
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C2200/00—Details
    • G03C2200/48—Polyoxyethylene
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C7/00—Multicolour photographic processes or agents therefor; Regeneration of such processing agents; Photosensitive materials for multicolour processes
    • G03C7/30—Colour processes using colour-coupling substances; Materials therefor; Preparing or processing such materials
    • G03C7/32—Colour coupling substances
    • G03C7/36—Couplers containing compounds with active methylene groups
    • G03C7/38—Couplers containing compounds with active methylene groups in rings
    • G03C7/384—Couplers containing compounds with active methylene groups in rings in pyrazolone rings

Definitions

  • This invention relates to a non-hydroquinone developer composition
  • this invention relates to a non-hydroquinone developer composition which is particularly useful in the development of various types
  • the photographic developing composition of the present invention is advantageously used to develop internally boosted silver halide emulsions containing a hydrazine compound functioning as a nucleating agent.
  • hydroquinone as the sole developing agent and, further, aldehyde tends to react with the hydroquinone developer to cause undesirable changes in development activity. Further, the low sulfite ion concentration is inadequate to provide effective protection against aerial oxidation. As a consequence, the conventional "lith" developer solution is lacking in stability.
  • hydroquinone has allergenic effects. Therefore, the use of hydroquinone poses certain handling and disposal problems in view of applicable health, safety and environment guidelines and regulations.
  • WO 93/11456 describes a rapid access developer for hydrazine- containing films comprising at least one alkanolamine in an amount of 5-50 g/£; at least one ascorbic acid developing agent; and having a pH in the range of 10.7 to about 12.0.
  • the developer may further contain KOH and potassium carbonate.
  • alkanolamines possess the undesirable characteristic of toxicity, excessive volatility and unpleasant odor.
  • alkanolamines tend to adversely affect high contrast lith image performance.
  • U.S. Patent No. 5,196,298 which corresponds to European Patent Application No. 0 498 968 published August 19, 1992, proposes a photographic developing solution for immersion development having a pH of at least 12.0 and containing more than 0.4 mols/liter of a sugar derivative, or an alkali metal salt thereof, such as £ -ascorbic acid and iso-ascorbic acid, which preferably contains no other developing agents and no sulfite ions.
  • the developer solution of U.S. Patent No. 5,196,298 is described as permitting the development of graphic arts photographic materials with lith quality while permitting the disposal of the depleted developer solutions in a more environmentally ready manner.
  • U.S. Patent No. 5,196,298 also
  • non-alkali metal hydroxide containing photographic developer composition non-alkali metal hydroxide containing photographic developer composition.
  • the non-hydroquinone developer solution of this patent contains a developer
  • Japanese Published Patent Application No. 59-191035 published October 30, 1984 discloses a developer composition, which is especially adapted for processing a silver halide emulsion containing a black dye, wherein the developer is described as containing ascorbic acid, alkali metal carbonate, alkali metal sulfite and alkali hydroxide in a pH range of 10 to 14.
  • these two latter-mentioned publications do not describe lith developers in particular, nor do these publications describe testing data which shows lith quality development.
  • these developers can be used as developers for a silver halide
  • photographic material containing a hydrazine compound as a nucleator to
  • An object of the present invention is to provide a developer composition which does not require the presence of hydroquinone-type developer components or alkanolamines, and as a consequence, poses less of a threat to health and environment and can be more easily handled and disposed.
  • non-hydroquinone developer composition consisting essentially of the following:
  • a developer selected from the group consisting of ascorbic acid and sugar-type derivatives thereof, or alkali metal salts and
  • an auxiliary developer comprising a 3-pyrazolidone compound, an aminophenol compound or a mixture thereof;
  • an alkali metal carbonate in an amount of 0.1 to 0.4 mol/£;
  • an alkali metal hydroxide in an amount of from 10 to 25 g/l where an ascorbic acid or sugar-type derivative thereof is present in the form of a free acid or 3 to 15 g/f where an ascorbic acid or sugar-type derivative thereof is present in the form of an alkali metal salt; and
  • the developer composition having a pH of from 10.3 to
  • composition additionally contains one or more of the following additional
  • the restrainer is selected to be an alkali metal bromide; the organic anti-fogging agent is selected to be a combination of
  • the developer composition of the present invention does not contain an alkanolamine or contains an alkanolamine in an amount of less than 5 git .
  • the developer composition does not contain an alkanolamine.
  • Many alkanolamines possess the undesirable characteristics of toxicity, excessive volatility and unpleasant odor. Many alkanolamines can form azeotropes with water that can complicate accurate replenishment of developer solutions, and such compounds are also quite costly. Furthermore, alkanolamines tend to accelerate the process of chemical development at the expense of physical development.
  • This phenomenon tends to produce an image which is more grainy than an image obtained without an alkanolamine, and is contrary to the goal of obtaining a very high contrast lith image.
  • Figure 1 shows D-LogE curves for a EK 2000 CGP internally boosted emulsion film as processed by the developer composition of the present invention and several representative prior art developer compositions.
  • Figure 2 shows D-LogE curves for a EK 2000 CLW internally boosted
  • Figure 3 A shows D-LogE curves for a Fuji RO-100 conventional rapid access emulsion film developed by the developer composition of the present
  • Figure 3B shows D-LogE curves for a Fuji RO-100 conventional rapid access emulsion film developed by the developer composition of the present invention and the developer of U.S. Patent No. 5,098,819.
  • Figure 3C shows D-LogE curves for a Fuji RO-100 conventional rapid access emulsion film developed by the developer composition of the present invention and the developer of Japanese Patent Application (OPI)
  • Figure 4A shows the D-LogE curve for different formulations of the developer composition of the present invention on an EK 2000 CGP internally boosted emulsion film.
  • Figure 4B shows the D-LogE curve for different formulations of the developer composition of the present invention on an EK 2000 CLW internally boosted emulsion film.
  • Figure 4C shows the D-LogE curve for different formulations of the developer composition of the present invention on an Fuji RO-100 rapid
  • Figure 5 A shows the effect of the sodium hydroxide level, i.e. , the pH
  • Figure 5B shows the effect of the sodium hydroxide level, i.e. , the pH value, on D-LogE curves for EK 200 CLW internally boosted emulsion films
  • Figure 5C shows the effect of the sodium hydroxide level, i.e. , the pH value, on D-LogE curves for Fuji RO-100 rapid access emulsion films with an ascorbic acid-based developer formulation.
  • the ascorbic acid and sugar-type derivatives thereof useable as the developing agent also include stereoisomers and diastereoisomers of ascorbic acid and its sugar-type derivatives, their salts and mixtures thereof. Suitable developers which fall
  • -ascorbic acid d-erythro-ascorbic acid (i.e. , erythorbic or isoascorbic acid), d-gluco-ascorbic acid, 6-deoxy-£ -ascorbic acid, -rhamno-ascorbic acid,
  • the ascorbic acids and ascorbic acid sugar derivatives of this invention are generally used in amount ranging from 0.1 to 0.4 mol/t, or more, and preferably used in an amount ranging from 0.14 to 0.28 mollt in the working developer solution. While the useful range of developer includes 0.1 to 0.4 mollt , the useful amounts of developer can even exceed 0.4 mollt in some circumstances, which generally will decrease the amount of auxiliary developer, such as phenidone that is needed.
  • Preferred ascorbic acid compounds for use in the present invention as the developing agent are alkali metal ascorbates and t -ascorbic acid.
  • the ascorbic acids and ascorbic acid sugar derivatives of the present invention can be dissolved into the developing solution in the free acid form or, alternatively, they can be incorporated as an alkali salt, preferably the sodium or potassium salt thereof, or as a mixture of both free acid form and salt thereof.
  • an alkali salt preferably the sodium or potassium salt thereof, or as a mixture of both free acid form and salt thereof.
  • a lesser amount of alkali hydroxide is needed to establish a pH of 10.3 to 12.5, for example, an amount of about 3 to 15 git alkali hydroxide is generally used.
  • An auxiliary developing agent comprising a 3-pyrazolidone (or
  • Suitable aminophenols which can be used include p-methylamino-phenol (metol) and those disclosed in U.S. Patent 4,914,003, the disclosure of which is incorporated by reference.
  • the auxiliary developing agent is used in an effective amount to achieve high density and high contrast. Such is generally used in an amount of from 0.001 to 0.12 mol/£, and preferably is used in an amount of from 0.001 to 0.006 mol/ for the 3-pyrazolidone or 0.001 to 0.02
  • the developer composition of the present invention can be successfully employed without the need of any hydroquinone-type developer or an alkanolamine.
  • other important addenda to the developer composition of the present invention include an alkali metal sulfite, preferably sodium sulfite (Na 2 SO 3 ) used in an amount of up to 0.32 moll , preferably
  • alkalinity of the developer composition is maintained within the desired range
  • an alkali metal carbonate such as sodium or potassium carbonate in an amount of 0.1 to 0.4 mol/£ or less, preferably from 0.14 to 0.28 mol/ .
  • the alkali metal carbonate is preferably used in conjunction with an alkali metal hydroxide in an amount of 3 to 25 git to adjust the pH range to the desired range.
  • the amount of alkali hydroxide added partly depends on whether the developer is used in a free acid from, where the amount of alkali hydroxide is generally used in an amount of 10 to 25 git, or if the developer is used in salt form, where the amount of alkali hydroxide is generally used in an amount of 3 to 15 git.
  • alkali metal carbonates give rise to less caustic compositions than alkali metal hydroxides.
  • alkali metal carbonates typically require greater amounts to be present to effect a pH adjustment in comparison to alkali hydroxides.
  • developer solution be established through a discretionary selection of amounts for each of alkali metal carbonate and alkali hydroxide, and with refinements made to the pH preferably being made by supplemental addition of alkali metal hydroxide.
  • the developer composition of the present invention also can contain a wide variety of other conventional additives and addenda, which serve other various desirable functions.
  • additional addenda include, but are not limited to, additional developing agents other than hydroquinone, antifogging agents, buffers, sequestering agents, swelling control agents,
  • the developer solution contains certain other addenda including each of a restrainer agent, an organic antifogging agent and a sequestering or chelating agent.
  • sodium or potassium bromides are preferably included as restrainers in an amount of about 0.008 to 0.04 mollt .
  • Exemplary organic anti-fogging agents preferably include a combination of a benzotriazole and phenyl mercaptotetrazole each in an amount of 0.01 to 0.1 git, respectively.
  • Useful benzotriazoles are disclosed, for example, in U.S. Patent No. 4,975,354, the disclosure of which is incorporated by reference.
  • An exemplary mercaptotetrazole is l-phenyl-5-mercaptotetrazole.
  • the present invention also encompasses the use of other
  • antifogging agents such as disclosed in U.S. Patent Nos. 5,098,819 and
  • a small amount of a sequestering or chelating agent is generally used to sequester trace amounts of metal ions present in the components or water used in formulating the developer formulation.
  • Exemplary sequestering agents useable in the present invention are disclosed by U.S. Patent No. 5,098,819, inco ⁇ orated herein by reference, and are generally used in an amount of 0.5 to 3 git, preferably from 0.5 to 2.0 git.
  • the sequestering agent used in the present invention is Na 2 EDTA in the above amounts.
  • the developing solutions of the present invention can be employed to develop various types of photographic materials, especially black-and-white photographic elements including conventional rapid access films, such as Fuji RO-100 film by Fuji Photo Film Co., Ltd., as well as silver halide photographic materials containing a hydrazine compound as a nucleator, such as EK 2000 CGP and EK 2000 CLW film manufactured by Eastman Kodak Company.
  • the utility of the developing solution of the present invention is not limited thereto and is understood to extend to other black-and-white materials such as radiographic recording and duplicating materials, cinematographic recording and duplicating materials and microfilm.
  • the photographic elements which can be developed by the developer's solution of the present invention can take on conventional layering schemes such as disclosed in U.S. Patent No.5,198,298, which is incorporated by reference herein.
  • films which can be used in the present invention is a silver halide photographic material containing a hydrazine compound as a nucleator.
  • Such photographic materials are shown in, for example,
  • Non-limiting examples of hydrazine compounds are the following compounds:
  • hydrazine compounds which can be used in the photographic material, include those described in RESEARCH DISCLOSURE, Item 23516 (November, 1983, page 346) and the literature references referred to therein, as well as in U.S. Patents 4,080,207, 4,269,929, 4,276,364, 4,278,748, 4,385,108, 4,459,347, 4,560,638, 4,478,928, 4,737,452, 4,284,764, 4,686,167, 5,100,761, 5,006,445, 4,960,672, 4,971,890, 4,971,888, 4,950,578, 5,061,594, 5,017,456, 5,028,510, European Patent 217,310, European Patent 286,840 and British Patent 2,011,391.
  • the hydrazine compound may be introduced in any hydrophilic colloid layer of the photographic material, such as a silver halide emulsion layer, an inter layer, a protective coating layer, etc.
  • the amount of the hydrazine compound present in the photographic material is preferably from 1 x 10 "6 mol to 5 x 10 "2 mol, especially preferably from 1 x 10 "5 mol to 2 x 10 "2 mol, per mol of silver halide in the photographic light-sensitive element.
  • the photographic material to be developed by the developing solutions of the present invention can be image-wise exposed by any convenient radiation source in accordance with this specific application.
  • an automatically operating apparatus is used provided with a system for automatic replenishment of the processing solutions.
  • the development step can be followed by a stop step, for example, using a stopping solution such as a 3% acetic acid solution used at
  • Photographic Chemicals, Inc. used at about 90°F for 30 seconds, followed by a washing or stabilization step. Finally, the photographic material is dried according to standard practices.
  • PH 12.05 12.35 13.0 10.38 10.16 10.04 12.05 Three different types of photographic films were developed by each developer solution tested. Two of the films were commercially available internally boosted (IB) types, namely Kodak CGP (for halftone work and Kodak CLW (for line work), while the third film was a commercially available rapid access film, namely FUJI RO-100 film.
  • the developing conditions used were a temperature of 90° F and a developing time of 30 seconds for CGP and CLW films and 25 seconds for RO-100 film. Afterwards, a stop bath (3% acetic acid soln.) was used at 90° F for 15 seconds.
  • Figure 1 shows D-LogE curves for a EK 2000 CGP internally boosted emulsion film as processed by the developer composition of the present invention and several representative prior art developer compositions.
  • Figure 2 shows D-LogE curves for a EK 2000 CLW internally boosted emulsion film as processed by the developer composition of the present invention and several representative prior art developer compositions.
  • Figure 3A shows D-LogE curves for a Fuji RO-100 rapid access emulsion film developed by the developer composition of the present invention and the developer of European Patent No. 0 498 968
  • Figure 3B shows D-LogE curves for a Fuji RO-100 rapid access emulsion film developed by the developer composition of the present invention and the developer of U.S. Patent No. 5,098,819.
  • Figure 3C shows D-LogE curves for a Fuji RO-100 rapid access emulsion film developed by the developer composition of the present invention and the developer of Japanese Patent Application (OPI) No. 59-191035.
  • OPI Japanese Patent Application
  • Example B represents results for Example B; ⁇ represents results for Example C; o represents results for Example D; and + represents results for Example E.
  • Figure 4 A shows the D-LogE curve for different formulations of the developer composition of the present invention on an EK 2000 CGP internally boosted emulsion film.
  • Figure 4B shows the D-LogE curve for different formulations of the developer composition of the present invention on an EK 2000 CLW internally boosted emulsion film.
  • Figure 4C shows the D-LogE curve for different formulations of the developer composition of the present invention on an Fuji RO-100 rapid
  • Example 1 The effect of sodium hydroxide level, and, hence the pH value, was examined for the same three types of films used in Example 1 with the formulations used in Table 3-1 (all amounts are in git, unless indicated otherwise). The same developing conditions were used as in Example 1.
  • Figure 5 A shows the effect of the sodium hydroxide level, i.e. , the pH value, on D-LogE curves for an EK 2000 CGP internally boosted emulsion films with an ascorbic acid-based developer formulation.
  • Figure 5B shows the effect of the sodium hydroxide level, i.e. , the pH value, on D-LogE curves for EK 2000 CLW internally boosted emulsion films
  • Figure 5C shows the effect of the sodium hydroxide level, i.e. , the pH
  • dot quality investigations also were made on the same developer formulations as solutions 1-7 and EK RA 2000 of Example 1 (Table 1-1), and on same three types of films used in Example 1.
  • dot quality is a standard methodology for evaluating the quality of lith developers. The better the lith quality, the better the dot quality. The sharper the dot, the lower the numerical rating assigned.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)

Abstract

L'invention concerne une composition de révélateur photographique sans hydroquinone constitué par: (a) un révélateur choisi dans le groupe constitué de l'acide ascorbique et de dérivés du type sucre de celui-ci, ou leurs sels de métaux alcalins ainsi que leurs mélanges, en une quantité de 0,1 à 0,4 moles par litre; (b) une quantité efficace d'un agent révélateur auxiliaire contenant un composé 3-pyrazolidone, un aminophénol ou un mélange de ceux-ci; (c) un sulfite de métal alcalin en une quantité inférieure ou égale à 0,32 moles par litre; (d) un carbonate de métal alcalin en une quantité de 0,1 à 0,4 moles par litre; (e) un hydroxyde de métal alcalin en une quantité de 10 à 25 grammes par litre lorsque l'acide ascorbique ou un dérivé du type sucre de celui-ci est présent sous la forme d'un acide libre, ou de 3 à 15 grammes par litre lorsque l'acide ascorbique ou un dérivé du type sucre de celui-ci est présent sous la forme d'un sel de métal alcalin; et (f) la composition de révélateur a un pH de 10,3 - 12,5, à 25 °C. La composition de révélateur est utile pour le traitement de pellicules traditionnelles à accès rapide. Elle est particulièrement avantageuse pour le développement d'émulsions d'halogénure d'argent contenant un composé d'hydrazine: elle permet alors d'atteindre la qualité lithographique avec un grain très fin, tout en étant stable. Dans une forme d'exécution préféré, la composition de révélateur ne contient pas d'alcanolamine.
PCT/US1994/006353 1993-06-18 1994-06-10 Composition de revelateur photographique sans hydroquinone et procede de traitement Ceased WO1995000881A1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP7502861A JPH09500221A (ja) 1993-06-18 1994-06-10 ヒドロキノンを含まない写真現像組成物および処理方法
AU10922/95A AU689168C (en) 1993-06-18 1994-06-10 Non-hydroquinone photographic developer composition and processing method
EP94919380A EP0738400B1 (fr) 1993-06-18 1994-06-10 Composition de revelateur photographique sans hydroquinone et procede de traitement
DE69426780T DE69426780T2 (de) 1993-06-18 1994-06-10 Photographische entwicklerzusammensetzung ohne hydrochinon und verarbeitungsverfahren
AT94919380T ATE199461T1 (de) 1993-06-18 1994-06-10 Photographische entwicklerzusammensetzung ohne hydrochinon und verarbeitungsverfahren

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US7802493A 1993-06-18 1993-06-18
US078,024 1993-06-18

Publications (1)

Publication Number Publication Date
WO1995000881A1 true WO1995000881A1 (fr) 1995-01-05

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PCT/US1994/006353 Ceased WO1995000881A1 (fr) 1993-06-18 1994-06-10 Composition de revelateur photographique sans hydroquinone et procede de traitement

Country Status (10)

Country Link
US (1) USH2048H1 (fr)
EP (1) EP0738400B1 (fr)
JP (1) JPH09500221A (fr)
CN (1) CN1053970C (fr)
AT (1) ATE199461T1 (fr)
AU (1) AU689168C (fr)
DE (1) DE69426780T2 (fr)
MY (1) MY111751A (fr)
SG (1) SG34338A1 (fr)
WO (1) WO1995000881A1 (fr)

Cited By (11)

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Publication number Priority date Publication date Assignee Title
EP0732619A1 (fr) * 1995-02-21 1996-09-18 Agfa-Gevaert N.V. Solution et méthode pour le développement d'un matériau photographique à l'halogénure d'argent exposé
EP0786697A1 (fr) * 1996-01-23 1997-07-30 Sun Chemical Corporation Développateur photographique à l'ascorbate chimiquement stable et procédé de formation d'image
US5702875A (en) * 1996-06-28 1997-12-30 Eastman Kodak Company Weakly alkaline ascorbic acid developing composition, processing kit and method using same
US5866309A (en) * 1997-10-22 1999-02-02 Fitterman; Alan S. Method for processing roomlight handleable photographic elements
US5871890A (en) * 1997-11-14 1999-02-16 Eastman Kodak Company Method for processing roomlight handleable radiographic films using two-stage development
US5932398A (en) * 1997-11-14 1999-08-03 Eastman Kodak Company Kit for roomlight processing of black-and-white photographic elements
US5942379A (en) * 1995-08-10 1999-08-24 Eastman Kodak Company 3-pyrazolidone compounds and photographic developer solutions containing same
WO2001044523A1 (fr) * 1999-12-17 2001-06-21 Metafix Inc. Procede de recuperation de l'argent dans des solutions photographiques
US6379877B1 (en) 1995-02-21 2002-04-30 Agfa-Gevaert Method for developing an exposed photographic silver halide material
ES2224757A1 (es) * 1998-10-13 2005-03-01 Luis Casademunt Garre Revelador fotografico para avance de la sensibilidad efectiva en peliculas con emulsion de blanco y negro.
CN103343068A (zh) * 2013-06-18 2013-10-09 厦门市豪尔新材料有限公司 剥胶剂

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102591133A (zh) * 2012-03-03 2012-07-18 合肥通用无损检测技术有限责任公司 一种显影液及其制备方法
CN104765244A (zh) * 2015-04-30 2015-07-08 石家庄太行科工有限公司 一种环保型显影液及其制备方法和应用

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US4988604A (en) * 1990-05-24 1991-01-29 Eastman Kodak Company High contrast photographic element including an aryl sulfonamidophenyl hydrazide containing both thio and ethyleneoxy groups
WO1993011456A1 (fr) * 1991-12-02 1993-06-10 E.I. Du Pont De Nemours And Company Systemes revelateurs ameliores pour films contenant de l'hydrazine

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US6379877B1 (en) 1995-02-21 2002-04-30 Agfa-Gevaert Method for developing an exposed photographic silver halide material
EP0732619A1 (fr) * 1995-02-21 1996-09-18 Agfa-Gevaert N.V. Solution et méthode pour le développement d'un matériau photographique à l'halogénure d'argent exposé
US5942379A (en) * 1995-08-10 1999-08-24 Eastman Kodak Company 3-pyrazolidone compounds and photographic developer solutions containing same
EP0786697A1 (fr) * 1996-01-23 1997-07-30 Sun Chemical Corporation Développateur photographique à l'ascorbate chimiquement stable et procédé de formation d'image
US5702875A (en) * 1996-06-28 1997-12-30 Eastman Kodak Company Weakly alkaline ascorbic acid developing composition, processing kit and method using same
US5756271A (en) * 1996-06-28 1998-05-26 Eastman Kodak Company Weakly alkaline ascorbic acid developing composition, processing kit and method using same
US5866309A (en) * 1997-10-22 1999-02-02 Fitterman; Alan S. Method for processing roomlight handleable photographic elements
US5932398A (en) * 1997-11-14 1999-08-03 Eastman Kodak Company Kit for roomlight processing of black-and-white photographic elements
US5871890A (en) * 1997-11-14 1999-02-16 Eastman Kodak Company Method for processing roomlight handleable radiographic films using two-stage development
ES2224757A1 (es) * 1998-10-13 2005-03-01 Luis Casademunt Garre Revelador fotografico para avance de la sensibilidad efectiva en peliculas con emulsion de blanco y negro.
WO2001044523A1 (fr) * 1999-12-17 2001-06-21 Metafix Inc. Procede de recuperation de l'argent dans des solutions photographiques
US6277290B1 (en) 1999-12-17 2001-08-21 Metafix Inc. Process for recovering silver from photographic solutions
CN103343068A (zh) * 2013-06-18 2013-10-09 厦门市豪尔新材料有限公司 剥胶剂

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CN1053970C (zh) 2000-06-28
JPH09500221A (ja) 1997-01-07
AU1092295A (en) 1995-01-17
MY111751A (en) 2000-12-30
CN1129989A (zh) 1996-08-28
DE69426780D1 (de) 2001-04-05
ATE199461T1 (de) 2001-03-15
EP0738400A4 (fr) 1996-06-18
AU689168B2 (en) 1998-03-26
EP0738400B1 (fr) 2001-02-28
EP0738400A1 (fr) 1996-10-23
SG34338A1 (en) 2000-12-19
AU689168C (en) 2001-11-22
DE69426780T2 (de) 2001-10-04
USH2048H1 (en) 2002-09-03

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