EP1862852B1 - Concentré de révélateur - Google Patents

Concentré de révélateur Download PDF

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Publication number
EP1862852B1
EP1862852B1 EP07010793A EP07010793A EP1862852B1 EP 1862852 B1 EP1862852 B1 EP 1862852B1 EP 07010793 A EP07010793 A EP 07010793A EP 07010793 A EP07010793 A EP 07010793A EP 1862852 B1 EP1862852 B1 EP 1862852B1
Authority
EP
European Patent Office
Prior art keywords
potassium
developer
ascorbic acid
water
working solution
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.)
Not-in-force
Application number
EP07010793A
Other languages
German (de)
English (en)
Other versions
EP1862852A1 (fr
Inventor
Wolfgang Zehner
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.)
Orochemie GmbH and Co KG
Original Assignee
Orochemie GmbH and Co KG
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 Orochemie GmbH and Co KG filed Critical Orochemie GmbH and Co KG
Publication of EP1862852A1 publication Critical patent/EP1862852A1/fr
Application granted granted Critical
Publication of EP1862852B1 publication Critical patent/EP1862852B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • G03C5/264—Supplying of photographic processing chemicals; Preparation or packaging thereof
    • G03C5/266—Supplying of photographic processing chemicals; Preparation or packaging thereof of solutions or concentrates
    • 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
    • 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
    • G03C2005/3007—Ascorbic acid
    • 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
    • G03C2200/44—Details pH value
    • 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
    • G03C5/3028—Heterocyclic compounds
    • G03C5/3035—Heterocyclic compounds containing a diazole ring

Definitions

  • the invention relates to a developer for photosensitive film material according to the preamble of claim 1.
  • a developing solution for use with silver halide film material comprising as a developer ascorbic acid or a salt of ascorbic acid.
  • the pH of the developing solution may be 9.8.
  • JP-A-9-197630 of the WO-A-93-11456 , of the JP-A-10-171076 , of the JP-A-8-211572 , of the JP-A-9-265162 , of the JP-A-9-265161 and the JP-A-9-197628 refer to.
  • Such developers are in a variety of forms on the market. They generally serve to convert, by a reducing agent (developing agent), silver ions or other suitable metal ions contained in the photosensitive layer and sensitized by exposure to light into metallic silver.
  • a reducing agent developer agent
  • silver ions or other suitable metal ions contained in the photosensitive layer and sensitized by exposure to light into metallic silver.
  • the present invention is intended to provide a developer concentrate for photosensitive film material, which is distinguished by particularly good long-term stability under use conditions.
  • the developer according to the invention has as further advantages that it is free of hydroquinone and of GDA (glutaraldehyde adduct). It is also characterized by a very high development activity. It also has excellent yield, especially in roll developing machines.
  • the most important component in terms of quantity is the solvent. This is generally chosen so that it is compatible with the film layer to be developed, so it wets and allows an exchange of solutes with the film layer.
  • a water-based solvent is suggested, which means that this solvent comprises predominantly or completely water.
  • adjuvants may be added to the water which promote wetting of the film layer, optionally swelling of the film layer and later drying of the film layer.
  • the developing agent serves to convert the metal ions of the photosensitive layer, insofar as they have been activated by light, into elemental metal.
  • known developing agents include hydroquinone and other substances that are undesirable for environmental or potential health reasons.
  • One class of reducing agent used in the developer of the present invention includes ascorbic acid and derivatives of ascorbic acid, especially salts thereof. These are particularly advantageous in terms of environmental protection.
  • Development enhancers used in the invention include pyrazolidinone derivatives containing two nitrogen atoms in a five-membered ring.
  • the five-membered ring may carry further aliphatic or aromatic groups.
  • Preferred examples of such pyrazolidinone derivative developing agents are 4-hydroxymethyl-4-methyl-1-phenyl-3-pyrazolidinone, 1-phenylpyrazolidin-3-one and 1-phenyl-4-methyl-3-pyrazolidinone. These substances are also known under the trade names Dimezone S, Phenidone A and Phenidone B.
  • a development inhibitor is added to the developer.
  • These are preferably alkali halides, in particular those with heavier anions, preferably potassium bromide or sodium bromide.
  • the pH of the use solution be maintained within a given window of from about 8.5 to about 12, preferably from about 9.7 to about 11.2.
  • alkalis preferably potassium hydroxide or sodium hydroxide.
  • the pH can also be stabilized by salts of a weak acid in the desired alkaline range, in particular salts of weak organic or inorganic acids, preferably potassium carbonate, sodium tetraborate, sodium metaborate. You can also use mixtures of alkalis and salts.
  • the development result is advantageously influenced if the developer is additionally added a complexing agent.
  • complexing agents are preferably organic acids with small chain length, which contain nitrogen groups, more preferably additionally short aliphatic groups.
  • Preferred complexing agents are diethyltriamine pentaethanoic acid (DTPA), ethylenediaminetetraethanoic acid (EDTA), hydroxyethylethylenediaminetriacetic acid (HEDTA) and nitrilotriethanoic acid (NTA) and salts of the aforementioned acids.
  • a ready-to-use developer solution is adversely affected by oxidation in its properties.
  • an antioxidant to the developer.
  • Suitable for this purpose are generally not completely oxidized acids and salts thereof, in particular sulfites such as potassium sulfite, potassium hydrogen sulfite, potassium metabisulfite and sodium bisulfite.
  • a solubilizer can be used.
  • These may be polyhydric alcohols, in particular diols or glycols. Diethylene glycol and triethylene glycol are preferably used here.
  • agents belonging to the group of azoles in particular of the benzotriazole, indazole, mercaptotetrazole and imidazole type), in particular 5-mercapto-1-phenyl-1,2,3,4-tetrazole (PMT ), 1-H-benzotriazole, 5-methylbenzotriazole, 6-nitrobenzimidazole, 5-nitroindazole.
  • compositions of embodiments give an overview of the concentration in which the various components in a Use solution in grams per liter of working solution may be present.
  • the concentrations are recommended, which are recommended if a considered component alone forms the corresponding agent. It is understood that it is also possible to use mixtures of substances that are equally suitable for the same component of the developer, in which case the amounts used are selected such that the corresponding overall effect is obtained. Thus, for example, according to the following table for the different complexing agents in each case the same amount used. In this case, one can then simply replace the omitted portion of a complexing agent with an appropriate amount of another complexing agent.
  • Example 1 Developer for X-ray film processor
  • concentration data in the above description and claims refer, as indicated, to one liter of working solution and not to the concentrate.
  • concentrations in the concentrate are greater according to the prescribed dilution ratio for the concentrate. This dilution ratio is about 1.5 to 5 for a practical developer for roll-fed development machines, and about 0.5 to 1 for roll-free processors (film is moved around the edges by the tanks).

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)

Claims (1)

  1. Solution de révélateur pour matériau de film photosensible comportant un solvant à base d'eau, comportant un agent d'ajustement qui ajuste la valeur de pH du solvant dans la gamme alcaline, et comportant un agent développateur, l'agent développateur comportant de l'acide ascorbique ou un sel de l'acide ascorbique, et la valeur de pH étant ajustée de façon telle que la valeur de pH de la solution d'utilisation obtenue par dilution est comprise entre environ 8,5 et environ 12, caractérisée en ce que sa composition correspond à l'un des quatre tableaux suivants : Exemple 1: révélateur pour automates de développement de films radiographiques Composant Quantité [g/litre de solution d'utilisation] Eau À 1000 ml Dissolvine D 88, n° article 848534 (*) 6,660 Sulfite de potassium (45 %) 109,840 Carbonate de potassium 283,340 Diéthylèneglycol 73,340 Dimezone S 5,660 1-phényl-5-mercaptotétrazole 0,033 Acide ascorbique 93,340 Bromure de potassium 6,660 Potasse caustique à 45 %, technique 6,660 (*) Sel Na5 de l'acide diéthylènediaminepentaacétique
    Exemple 2: révélateur pour automates de développement de films radiographiques Composant Quantité [g/litre de solution d'utilisation] Eau À 1000 ml Na-EDTA 2,0 Hydrogénosulfite de potassium 15,3 Carbonate de potassium 60,0 Tétraborate de sodium 8,0 Triéthylèneglycol 20,0 Acide ascorbique 25,0 Isoascorbate de sodium 20,0 Bromure de sodium 4,5 5-méthyl-benzotriazole 0,3
    Exemple 3: révélateur pour automates de développement de films radiographiques Composant Quantité [g/litre de solution d'utilisation] Eau À 1000 ml Acide diéthylènetriaminepentaéthanoïque 1,76 Hydrogénosulfite de potassium 14,83 Carbonate de potassium (potasse) 75,00 Hydroxyde de potassium 1,90 Diéthylèneglycol 22,0 Acide ascorbique (BP2000/USP25) 38,00 4-hydroxyméthyl-4-méthyl-1-phényl-3-pyrazolidinone 1,70 Bromure de potassium 2,00 5-mercapto-1-phényl-1,2,3,4-tétrazole 0,1
    Exemple 4: révélateur pour automates de développement de films radiographiques Composant Quantité [g/litre de solution d'utilisation] Eau À 1000 ml Na5DTPA 1,00 à 3,00 Sulfite de potassium 8,00 à 19,00 Carbonate de potassium 65,00 à 95,00 Diéthylèneglycol 20,00 à 25,00 Dimezone S 1,00 à 2,30 Acide ascorbique 20,00 à 35,00 Bromure de potassium 1,00 à 4,00 Hydroxyde de potassium 2,00 à 4,00
EP07010793A 2006-06-04 2007-05-31 Concentré de révélateur Not-in-force EP1862852B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102006026422A DE102006026422A1 (de) 2006-06-04 2006-06-04 Entwicklerkonzentrat

Publications (2)

Publication Number Publication Date
EP1862852A1 EP1862852A1 (fr) 2007-12-05
EP1862852B1 true EP1862852B1 (fr) 2009-11-04

Family

ID=38261701

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07010793A Not-in-force EP1862852B1 (fr) 2006-06-04 2007-05-31 Concentré de révélateur

Country Status (4)

Country Link
EP (1) EP1862852B1 (fr)
AT (1) ATE447727T1 (fr)
DE (2) DE102006026422A1 (fr)
DK (1) DK1862852T3 (fr)

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0569580A1 (fr) 1991-12-02 1993-11-18 E.I. Du Pont De Nemours And Company Systemes revelateurs ameliores pour films contenant de l'hydrazine
US5858611A (en) * 1994-10-14 1999-01-12 Fuji Photo Film Co., Ltd. Development processing method of silver halide black-and-white photographic material
JPH08201991A (ja) 1995-01-23 1996-08-09 Fuji Photo Film Co Ltd 画像形成方法
JP3406108B2 (ja) 1995-02-03 2003-05-12 富士写真フイルム株式会社 画像形成方法
JPH09265162A (ja) 1996-01-24 1997-10-07 Fuji Photo Film Co Ltd 画像形成方法
JPH09197630A (ja) 1996-01-24 1997-07-31 Fuji Photo Film Co Ltd ハロゲン化銀写真感光材料用現像剤及びそれを用いた現像処理方法
JPH09197628A (ja) 1996-01-24 1997-07-31 Fuji Photo Film Co Ltd 画像形成方法
JPH09265161A (ja) 1996-01-24 1997-10-07 Fuji Photo Film Co Ltd 画像形成方法
JPH10171076A (ja) 1996-02-07 1998-06-26 Fuji Photo Film Co Ltd 画像形成方法
DE69804402D1 (de) * 1997-10-06 2002-05-02 Agfa Gevaert Nv Verfahren zur Verarbeitung eines photographischen Schwarzweiss-Silberhalogenidmaterials
GB9814304D0 (en) * 1998-07-01 1998-09-02 Eastman Kodak Co Method of processing a photographic high contrast silver halide material
DE19834357A1 (de) * 1998-07-30 2000-02-17 Agfa Gevaert Ag Fotografisches Schwarz-Weiß-Verarbeitungsverfahren

Also Published As

Publication number Publication date
EP1862852A1 (fr) 2007-12-05
DE102006026422A1 (de) 2007-12-06
DE502007001882D1 (de) 2009-12-17
ATE447727T1 (de) 2009-11-15
DK1862852T3 (da) 2010-03-22

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