EP0512311B1 - Entwicklungslösung für Verfahren mit geringem Chemieüberlauf - Google Patents

Entwicklungslösung für Verfahren mit geringem Chemieüberlauf Download PDF

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Publication number
EP0512311B1
EP0512311B1 EP92106781A EP92106781A EP0512311B1 EP 0512311 B1 EP0512311 B1 EP 0512311B1 EP 92106781 A EP92106781 A EP 92106781A EP 92106781 A EP92106781 A EP 92106781A EP 0512311 B1 EP0512311 B1 EP 0512311B1
Authority
EP
European Patent Office
Prior art keywords
developer
developer solution
phenylenediamine
processing method
kcl
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.)
Expired - Lifetime
Application number
EP92106781A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0512311A3 (ja
EP0512311A2 (de
Inventor
Ubbo Dr. Wernicke
Peter Dr. Buttner
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.)
Agfa Gevaert AG
Original Assignee
Agfa Gevaert AG
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 Agfa Gevaert AG filed Critical Agfa Gevaert AG
Publication of EP0512311A2 publication Critical patent/EP0512311A2/de
Publication of EP0512311A3 publication Critical patent/EP0512311A3/xx
Application granted granted Critical
Publication of EP0512311B1 publication Critical patent/EP0512311B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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
    • G03C7/407—Development processes or agents therefor
    • G03C7/413—Developers

Definitions

  • the silver halide emulsion layers Halide ions released, which hinder development when they accumulate in the developer.
  • the released halide ions have been washed out by high developer regeneration rates with a halide-free regenerator.
  • the regeneration rates were approximately 1.8 liters per m 2 of film; approx. 350 ml / m 2 paper.
  • the halide-laden overflow had to be disposed of and, in accordance with the high regeneration rates, has a low halide content of 0.6 to 3 g / l.
  • the exchange resin is used only once, as long and as far as there are halide ions can absorb, then the resin must be disposed of.
  • the object of the invention was to provide a development process which with regard to the disposal of the used developer further ecological advantages offers without the sensitometric properties of the processed Material deteriorate.
  • the processing method according to the invention is suitable for processing photographic silver halide materials, their silver halides too more than 95 mol%, preferably more than 98 mol%, of silver chloride consist. The remaining amount is up to 5 mol%, preferably up to 2 mol% especially silver bromide.
  • the invention thus relates to a processing method for photographic Silver halide materials whose silver halides consist of at least 95 mol% Silver chloride exist, with the process steps (a) developing, (b) bleaching, (c) fixing, (d) stabilizing or washing and (e) drying, taking the steps (b) and (c) combined into one step, between the individual steps Washing steps can be provided and the developer solution Contains color developer of the p-phenylenediamine series, characterized in that the developer solution additionally 10 to 150 g potassium chloride / l, preferably 15 to Contains 100 g / l, in particular 20 to 80 g / l and the pH of the developer solution ⁇ 10.2, preferably ⁇ 10.7.
  • the desired pH is set in particular by means of buffer mixtures and kept constant.
  • the buffer is preferably 0.1 to per liter of developer solution 0.3 mol of phosphate buffer, borate buffer, carbonate buffer, glycine buffer or others Buffer substances suitable. Mixtures of different buffers can also be used Consideration.
  • a color developer of the p-phenylenediamine series preferably salts of 1- [N-ethyl-N- (2-methylsulfonylaminoethyl)] - 3-methyl-p-phenylenediamine (CD3) or des 1- [N-ethyl-N- (2-hydroxyethyl)] - 3-methyl-p-phenylenediamine (CD4) or mixtures of CD3 and CD4 used.
  • Homologous CD-4 developers such as 1- [N-ethyl-N- (2-hydroxy-n-propyl) - and - (2-hydroxy-n-butyl)] - 3-methyl-p-phenylenediamine, are suitable.
  • CD3 is preferably used in a quantity from 4.5 to 9 g / l, in particular 6 to 8 g / l.
  • One opposite the standard RA-4 developer is increased amount mostly beneficial.
  • the developer solution can also have small proportions Contain bromide ions, for example from 0.005 up to 1.5 g KBr / l.
  • the phosphate ions are preferably introduced as K 3 PO 4 or K 2 HPO 4 .
  • the borate ions are preferably introduced as NaBO 2 .
  • Optical brighteners are further components, Lubricants, e.g. Polyalkylene glycols, surfactants, sodium and potassium sulfite, anti-limescale, anti-oxidant and means for adjusting the desired pH in question.
  • Lubricants e.g. Polyalkylene glycols
  • surfactants e.g. Polyalkylene glycols
  • sodium and potassium sulfite e.g. sodium and potassium sulfite
  • anti-limescale e.g. anti-limescale
  • anti-oxidant e.g., sodium and potassium sulfite, anti-limescale, anti-oxidant and means for adjusting the desired pH in question.
  • the ready-to-use solution can consist of the individual components or made from so-called concentrates in the concentrates, the individual Components dissolved in a much higher concentration will.
  • the concentrates are composed in such a way that they are either added directly to the ready-to-use solution in order to regenerate them or that they arise from them can produce a so-called regenerator, i.e.
  • the resulting overflow amount can be collected inexpensive, for example by evaporation and dumping to dispose.
  • the ecological advantage is calculated as follows: Instead of 160 ml overflow per m 2 of paper with 5 g CD 3 / l and 1 g KCl / l, for example 1.6 ml overflow with 100 g KCl / l but the same CD 3 content is obtained, ie with regard to the CD 3 load an improvement by a factor of 10 2 , with respect to the amount of solution to be disposed of also an improvement by a factor of 10 2 .
  • the invention Procedure with a subsequent treatment step combined in which by the photographic Substances carried over as far as possible recovered and the developer, if necessary after Concentration, fed again.
  • Another object of the invention is a ready-to-use Developer solution for a color photographic Processing method using a color developer of the p-phenylenediamine series, thereby characterized in that they additionally 10 to 150 g KCl / l contains and is adjusted to a pH> 10.7.
  • Photographic color papers from various manufacturers based on silver chloride were developed in the standard process RA 4 / AP 94.
  • Material Kodak 2001 (a), Konika QA (b), Agfa type 9 (c).
  • Process Times temperature Color developer 45 sec 35 ° C
  • Bleach-fixer 45 sec 35 ° C
  • the color developer is identical to that of Example 2.
  • the bleach-fix bath contains 50 g of ammonium thiosulfate per liter, 10 g sodium sulfite and 50 g ammonium iron EDTA and is adjusted to pH 5.5.
  • sensitometric results are marked through veil (D-Min) Gamma 1, Gamma 2 (foot and Shoulder gradation) and maximum density (D-Max).
  • Example 2 reference, finisher process with separate bleaching and fixing bath
  • Example 2 The procedure was as in Example 2, but that was Developer added 100 g of potassium chloride / l to the enrichment the one normally released from the photographic material Anticipate inhibitors.
  • Example 6c now also achieves good Gamme 2-yellow values.
  • Example 6 The procedure was as in Example 6, except that Developer added 50 mg of potassium bromide per liter, though this addition by the developers of Examples 1 and 2 on similarly poor sensitometric results as in example 3 leads. In the developer according to the invention however, this addition has a positive effect and lowers it Effective level of minimum densities.
  • the sensitometric influence of Na 2 SO 4 is not disadvantageous.
  • the sensitometric values are still approximately according to type.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)
EP92106781A 1991-05-03 1992-04-21 Entwicklungslösung für Verfahren mit geringem Chemieüberlauf Expired - Lifetime EP0512311B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4114481A DE4114481A1 (de) 1991-05-03 1991-05-03 Oekologisch verbessertes entwicklungsverfahren fuer fotomaterialien und dafuer geeignete entwicklerloesung
DE4114481 1991-05-03

Publications (3)

Publication Number Publication Date
EP0512311A2 EP0512311A2 (de) 1992-11-11
EP0512311A3 EP0512311A3 (ja) 1994-02-02
EP0512311B1 true EP0512311B1 (de) 1998-02-04

Family

ID=6430913

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92106781A Expired - Lifetime EP0512311B1 (de) 1991-05-03 1992-04-21 Entwicklungslösung für Verfahren mit geringem Chemieüberlauf

Country Status (3)

Country Link
EP (1) EP0512311B1 (ja)
JP (1) JPH05142731A (ja)
DE (2) DE4114481A1 (ja)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3431860A1 (de) * 1984-08-30 1986-03-06 Agfa-Gevaert Ag, 5090 Leverkusen Verfahren zur herstellung farbfotografischer bilder
CA1314424C (en) * 1986-01-24 1993-03-16 Sheridan E. Vincent Photographic color developing compositions which are especially useful with high chloride photographic elements
DE3800385A1 (de) * 1988-01-09 1989-07-20 Agfa Gevaert Ag Ueberlauffreies farbfotografisches entwicklungssystem
JPH01189652A (ja) * 1988-01-25 1989-07-28 Konica Corp ハロゲン化銀カラー写真感光材料用発色現像液および該発色現像液を用いたハロゲン化銀カラー写真感光材料の処理方法
DE3805699A1 (de) * 1988-02-24 1989-09-07 Agfa Gevaert Ag Fotografische farbentwicklerloesung und verfahren zur entwicklung eines farbfotografischen materials
JP2811117B2 (ja) * 1990-07-24 1998-10-15 コニカ株式会社 ハロゲン化銀カラー写真感光材料用発色現像液

Also Published As

Publication number Publication date
DE4114481A1 (de) 1992-11-05
JPH05142731A (ja) 1993-06-11
DE59209177D1 (de) 1998-03-12
EP0512311A3 (ja) 1994-02-02
EP0512311A2 (de) 1992-11-11

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