EP1103853B1 - Colour photographic developer concentrate - Google Patents
Colour photographic developer concentrate Download PDFInfo
- Publication number
- EP1103853B1 EP1103853B1 EP00203480A EP00203480A EP1103853B1 EP 1103853 B1 EP1103853 B1 EP 1103853B1 EP 00203480 A EP00203480 A EP 00203480A EP 00203480 A EP00203480 A EP 00203480A EP 1103853 B1 EP1103853 B1 EP 1103853B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- concentrate
- water
- colour developer
- developer concentrate
- optionally substituted
- 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
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
- 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
-
- 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
- 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
- G03C7/44—Regeneration; Replenishers
Definitions
- the developer solution for developing colour photographic materials is prepared from or, in the case of continuous operation, replenished with concentrates which contain the necessary constituents.
- one concentrate contains the antioxidant, an auxiliary solvent and an optical brightener
- a second concentrate contains the colour developer substance, for example 4-(N-ethyl-N-2-methylsulfonylaminoethyl)-2-methylphenylenediamine sesquisulfate (CD-3)
- a third concentrate contains the buffer substance, alkali and a water softener.
- Two one-part concentrates are currently commercially available, a) Monoline® RA-4 CD-R from Tetenal, a two-phase concentrate with a solid, undissolved phase deposited at the bottom and b) TriPhase® RA-4 CD-R from Trebla, a three-phase concentrate with undissolved constituents in the middle phase (c.f. also US 5 891 609).
- the object of the invention was to provide a one-part, aqueous concentrate for a colour developer which contains no undissolved constituents and does not darken on storage.
- the aqueous concentrate contains at least one colour development agent, at least one auxiliary solvent, alkali, a buffer substance and an antioxidant, wherein the antioxidant is a mixture of 0.1 to 100, preferably of 1 to 25 mmol/l of hydroxylamine and 0.01 to 4, preferably 0.1 to 2 mol/l of one or more substituted hydroxylamines.
- the concentrate contains at most 0.1 mol of sulfate ions/L.
- the colour developer substance is, for example, added to the concentrate not as the sulfate, as is usual with CD-3, but instead as a phosphate, p-toluenesulfonate, chloride or as the free base.
- CD-3 sesquisulfate
- sulfate ions may also be used and the sulfate ions removed by precipitation with metal ions and filtration.
- a concentrate for the purposes of the invention is an aqueous preparation, 1 part by volume of which is diluted with 1 to 39 parts by volume of water in order to produce a ready-to-use solution; the concentrate contains at least 50 mmol, preferably 70 to 700 mmol of colour developer substance/L.
- the present invention accordingly provides a one-part, optionally multi-phase, colour developer concentrate which contains at least one colour developer substance, an auxiliary solvent, a buffer system and alkali, characterised in that the concentrate contains an antioxidant, wherein the antioxidant is a mixture of 0.1 to 100, preferably 1 to 25 mmol/l of hydroxylamine and 0.01 to 4, preferably 0.1 to 2 mol/l of one or more substituted hydroxylamines.
- the concentrate furthermore preferably contains at least one water softener.
- Water-soluble organic solvents are in particular used as the auxiliary solvent.
- Water-soluble organic solvents which may be considered are those from the range of glycols, polyglycols, alkanolamines, aliphatic and heterocyclic carbonamides, aliphatic and cyclic monoalcohols, wherein 50 to 95 wt.%, preferably 60 to 90 wt.% of the total of water and water-soluble solvent is water.
- Suitable water-soluble organic solvents are, for example, carboxylic acid amide and urea derivatives such as dimethylformamide, methylacetamide, dimethylacetamide, N,N'-dimethylurea, tetramethylurea, methanesulfonamide, dimethylethyleneurea, N-acetylglycine, N-valeramide, isovaleramide, N-butyramide, N,N-dimethylbutyramide, N-(2-hydroxyphenyl)acetamide, N-(2-methoxyphenyl)acetamide, 2-pyrrolidinone, ⁇ -caprolactam, acetanilide, benzamide, toluenesulfonamide, phthalimide; aliphatic and cyclic alcohols, for example isopropanol, tert.-butyl alcohol, cyclohexanol, cyclohexanemethanol, 1,4-cyclohexanedimethanol; aliphatic and
- Multi-phase means that the concentrate contains two or more liquid phases, but no precipitation.
- the liquid phases are, for example, an aqueous and an organic phase.
- Suitable substituted hydroxylamines are of the formulae (I), (II) and (III). in which
- alkyl groups R 1 , R 2 , R 3 , the alkylene group R 4 and the aryl group R 2 may bear further substituents in addition to the stated substitution.
- antioxidants (0-3) CH 3 CH(CH 3 )NHOH
- a colour developer regenerator is produced from the concentrate by dilution with water
- One-part, one-phase developer concentrate Diethylhydroxylamine, 85 wt.% aqueous solution (DEHX soln.) 35 mL CD 3, base 31 g Diethylene glycol 30 mL
- EDTA Ethylenediaminetetraacetic acid
- the concentrate undergoes distinct darkening on storage.
- One-part, one-phase developer concentrate Antioxidant O-2 35 g CD 3, base 31 g Diethylene glycol 30 mL Optical brightener W1 2 g EDTA 10 g Potassium carbonate 60 g adjust to pH 13.5 with KOH and make up to 1 litre with water.
- the concentrate undergoes distinct darkening on storage.
- One-part, one-phase developer concentrate DEHX soln. 35 mL Sodium sulfite 0.5 g CD 3, base 31 g Diethylene glycol 30 mL Optical brightener 2 g Polymaleic acid anhydride, 50% by weight aq. solution 15 mL Potassium carbonate 60 g adjust to pH 13.5 with KOH and make up to 1 litre with water.
- the concentrate undergoes distinct darkening on storage.
- One-part, one-phase developer concentrate DEHX soln. 35 mL Sodium sulfite 2 g CD 3, base 31 g Diethylene glycol 30 mL Optical brightener 2 g EDTA 10 g Potassium carbonate 60 g adjust to pH 13.5 with KOH and make up to 1 litre with water.
- the concentrate undergoes distinct darkening on storage.
- One-part, one-phase developer concentrate DEHX soln. 35 mL CD 3, base 31 g Hydroxylammonium sulfate 0.5 g Diethylene glycol 30 mL Optical brightener 2 g EDTA 10 g Potassium carbonate 60 g adjust to pH 13.5 with KOH and make up to 1 litre with water.
- the concentrate is light yellow and does not darken on storage.
- One-part, one-phase developer concentrate Antioxidant O-2 35 g Hydroxylammonium sulfate 0.5 g CD 3, base 31 g Diethylene glycol 30 mL Optical brightener 2 g EDTA 10 g Potassium carbonate 60 g adjust to pH 13.5 with KOH and make up to 1 litre with water.
- the concentrate is light yellow and does not darken on storage.
- One-part, multi-phase developer concentrate DEHX solution 60 mL CD 3, base 45 g Caprolactam 100 g Triethanolamine 80 mL Optical brightener 10 g Diethylenetriamine pentaacetic acid 40 g Potassium carbonate 165 g KOH 42 g adjust to pH 11.2 with KOH and make up to 1 L with water.
- the upper phase of the concentrate undergoes distinct darkening on storage.
- One-part, multi-phase developer concentrate DEHX solution 60 mL Sodium sulfite 2 g CD 3, base 45 g Caprolactam 100 g Triethanolamine 80 mL Optical brightener 10 g EDTA 30 g Potassium carbonate 165 g KOH 42 g adjust to pH 11.2 with KOH and make up to 1 L with water.
- the upper phase of the concentrate undergoes distinct darkening on storage.
- One-part, multi-phase developer concentrate DEHX solution 60 mL Hydroxylammonium sulfate 0.6 g CD 3, base 45 g Caprolactam 100 g Triethanolamine 80 mL Optical brightener 10 g EDTA 30 g Potassium carbonate 165 g KOH 42 g adjust to pH 11.2 with KOH and make up to 1 L with water.
- the upper phase of the concentrate is light yellow and does not darken on storage.
- a colour photographic recording material was produced by applying the following layers in the stated sequence onto a layer support of paper coated on both sides with polyethylene. Quantities are stated in each case per 1 m 2 . The silver halide application rate is stated as the corresponding quantities of AgNO 3 .
- the colour photographic recording material is exposed and processed under the following conditions: Step Time Temperature Development 27 sec 39°C Bleach/fixing 27 sec 35°C Stabilisation 54 sec 33°C
- the colour developers used were ready-to-use developers prepared from the concentrates according to Examples 1 to 9.
- Ammonium thiosulfate solution 58 wt.% 100 mL Sodium disulfite 5 g Ammonium-iron EDTA, 48 wt.% 100 mL make up with water to 1000 mL, adjust pH value to 6.0 with ammonia or acetic acid.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Silver Salt Photography Or Processing Solution Therefor (AREA)
Description
- The developer solution for developing colour photographic materials, in particular for developing colour photographic paper, is prepared from or, in the case of continuous operation, replenished with concentrates which contain the necessary constituents.
- It is conventional to provide three different concentrates, as certain constituents of the developer bath are not mutually compatible on extended storage. Thus, for example, one concentrate contains the antioxidant, an auxiliary solvent and an optical brightener, a second concentrate contains the colour developer substance, for example 4-(N-ethyl-N-2-methylsulfonylaminoethyl)-2-methylphenylenediamine sesquisulfate (CD-3) and a third concentrate contains the buffer substance, alkali and a water softener.
- There has been no lack of attempts to develop stable, one-part colour developer concentrates as handling errors during preparation or replenishing of a developer solution may consequently be avoided.
- Two one-part concentrates are currently commercially available, a) Monoline® RA-4 CD-R from Tetenal, a two-phase concentrate with a solid, undissolved phase deposited at the bottom and b) TriPhase® RA-4 CD-R from Trebla, a three-phase concentrate with undissolved constituents in the middle phase (c.f. also US 5 891 609).
- In both cases, the presence of undissolved constituents is disadvantageous for the purposes of handling the concentrate. Especially when preparing the regenerating solution, problems may occur because the undissolved constituents dissolve only poorly. It is also disadvantageous to produce one-part concentrates which, while they contain no undissolved constituents, darken on storage.
- The object of the invention was to provide a one-part, aqueous concentrate for a colour developer which contains no undissolved constituents and does not darken on storage.
- This object is achieved in that the aqueous concentrate contains at least one colour development agent, at least one auxiliary solvent, alkali, a buffer substance and an antioxidant, wherein the antioxidant is a mixture of 0.1 to 100, preferably of 1 to 25 mmol/l of hydroxylamine and 0.01 to 4, preferably 0.1 to 2 mol/l of one or more substituted hydroxylamines.
- In a preferred embodiment, the concentrate contains at most 0.1 mol of sulfate ions/L. The colour developer substance is, for example, added to the concentrate not as the sulfate, as is usual with CD-3, but instead as a phosphate, p-toluenesulfonate, chloride or as the free base.
- CD-3 (sesquisulfate) may also be used and the sulfate ions removed by precipitation with metal ions and filtration.
- A concentrate for the purposes of the invention is an aqueous preparation, 1 part by volume of which is diluted with 1 to 39 parts by volume of water in order to produce a ready-to-use solution; the concentrate contains at least 50 mmol, preferably 70 to 700 mmol of colour developer substance/L.
- The present invention accordingly provides a one-part, optionally multi-phase, colour developer concentrate which contains at least one colour developer substance, an auxiliary solvent, a buffer system and alkali, characterised in that the concentrate contains an antioxidant, wherein the antioxidant is a mixture of 0.1 to 100, preferably 1 to 25 mmol/l of hydroxylamine and 0.01 to 4, preferably 0.1 to 2 mol/l of one or more substituted hydroxylamines.
- The concentrate furthermore preferably contains at least one water softener.
- Water-soluble organic solvents are in particular used as the auxiliary solvent.
- Water-soluble organic solvents which may be considered are those from the range of glycols, polyglycols, alkanolamines, aliphatic and heterocyclic carbonamides, aliphatic and cyclic monoalcohols, wherein 50 to 95 wt.%, preferably 60 to 90 wt.% of the total of water and water-soluble solvent is water.
- Suitable water-soluble organic solvents are, for example, carboxylic acid amide and urea derivatives such as dimethylformamide, methylacetamide, dimethylacetamide, N,N'-dimethylurea, tetramethylurea, methanesulfonamide, dimethylethyleneurea, N-acetylglycine, N-valeramide, isovaleramide, N-butyramide, N,N-dimethylbutyramide, N-(2-hydroxyphenyl)acetamide, N-(2-methoxyphenyl)acetamide, 2-pyrrolidinone, ε-caprolactam, acetanilide, benzamide, toluenesulfonamide, phthalimide;
aliphatic and cyclic alcohols, for example isopropanol, tert.-butyl alcohol, cyclohexanol, cyclohexanemethanol, 1,4-cyclohexanedimethanol;
aliphatic and cyclic polyalcohols, for example glycols, polyglycols, polywaxes, trimethyl-1,6-hexanediol, glycerol, 1,1,1-trimethylolpropane, pentaerythritol, sorbitol;
aliphatic and cyclic ketones, for example acetone, ethyl methyl ketone, diethyl ketone, tert.-butyl methyl ketone, diisobutyl ketone, acetylacetone, acetonylacetone, cyclopentanone, acetophenol;
aliphatic and cyclic carboxylic acid esters, for example trimethoxymethane, methyl acetate, allyl acetate, ethylene glycol monomethyl ether acetate, ethylene glycol diacetate, glycerol 1-acetate, glycerol diacetate, methylcyclohexyl acetate, methyl salicylate, phenyl salicylate;
aliphatic and cyclic phosphonic acid esters, for example methylphosphonic acid dimethyl ester, allylphosphonic acid diethyl ester,
aliphatic and cyclic oxyalcohols, for example 4-hydroxy-4-methyl-2-pentanone, salicylaldehyde;
aliphatic and cyclic aldehydes, for example acetaldehyde, propanal, trimethylacetaldehyde, crotonaldehyde, glutaraldehyde, 1,2,5,6-tetrahydrobenzaldehyde, benzaldehyde, benzenepropane, terephthalaldehyde;
aliphatic and cyclic oximes, for example butanone oxime, cyclohexanone oxime;
aliphatic and cyclic amines (primary, secondary or tertiary), for example ethylamine, diethylamine, triethylamine, dipropylamine, pyrrolidine, morpholine, 2-aminopyrimidine;
aliphatic and cyclic polyamines (primary, secondary or tertiary), for example ethylenediamine, 1-amino-2-diethylaminoethane, methyl-bis(2-methylaminoethyl)amine, permethyldiethylenetriamine, 1,4-cyclohexanediamine, 1,4-benzenediamine;
aliphatic and cyclic hydroxylamines, for example ethanolamine, 2-methylethylamine, 2-methylaminoethanol, 2-(diethylamino)ethanol, 2-(2-dimethylaminoethoxy)ethanol, diethanolamine, N-methyldiethanolamine, triethanolamine, 2-(2-aminoethylamino)ethanol, triisopropanolamine, 2-amino-2-hydroxymethyl-1,3-propanediol, 1-piperidineethanol, 2-aminophenol, barbituric acid, 2-(4-aminophenoxy)ethanol, 5-amino-1-naphthol. - Processing conditions, suitable colour developer substances, suitable buffer substances, suitable water softeners, suitable optical brighteners, auxiliary developers, wetting agents, development accelerators and antifogging agents are described on pages 102 to 107 of Research Disclosure 37 038 (February 1995).
- Multi-phase means that the concentrate contains two or more liquid phases, but no precipitation. The liquid phases are, for example, an aqueous and an organic phase.
-
- R1
- means optionally substituted alkyl,
- R2
- means optionally substituted alkyl or optionally substituted aryl and
- n
- means 0 or 1
- R3
- means an optionally substituted alkyl or optionally substituted acyl group;
- R4
- means an alkylene group optionally interrupted by O atoms and
- m
- means a number of at least 2,
- The alkyl groups R1, R2, R3, the alkylene group R4 and the aryl group R2 may bear further substituents in addition to the stated substitution.
-
- Any phase boundaries which are present disappear on dilution of the concentrate with water to produce the ready-to-use colour developer or regenerator; the ready-to-use developer is one-phase.
- For the purposes of storage 200 mL of concentrate are placed in a 250 mL beaker (tall form) and the beaker sealed with an air-tight film (for example PARAFILM "M" ® from American National Can, Chicago). The concentrates are stored for two months at room temperature or 4 weeks at 40°C.
- The constituents listed below of a colour developer regenerator are combined in a concentrate (the ready-to-use regenerator is produced from the concentrate by dilution with water):
One-part, one-phase developer concentrate: Diethylhydroxylamine, 85 wt.% aqueous solution (DEHX soln.) 35 mL CD 3, base 31 g Diethylene glycol 30 mL Optical brightener W1 2 g Ethylenediaminetetraacetic acid (EDTA) 10 g Potassium carbonate 60 g - The concentrate undergoes distinct darkening on storage.
-
One-part, one-phase developer concentrate: Antioxidant O-2 35 g CD 3, base 31 g Diethylene glycol 30 mL Optical brightener W1 2 g EDTA 10 g Potassium carbonate 60 g - The concentrate undergoes distinct darkening on storage.
-
One-part, one-phase developer concentrate: DEHX soln. 35 mL Sodium sulfite 0.5 g CD 3, base 31 g Diethylene glycol 30 mL Optical brightener 2 g Polymaleic acid anhydride, 50% by weight aq. solution 15 mL Potassium carbonate 60 g - The concentrate undergoes distinct darkening on storage.
-
One-part, one-phase developer concentrate: DEHX soln. 35 mL Sodium sulfite 2 g CD 3, base 31 g Diethylene glycol 30 mL Optical brightener 2 g EDTA 10 g Potassium carbonate 60 g - The concentrate undergoes distinct darkening on storage.
-
One-part, one-phase developer concentrate: DEHX soln. 35 mL CD 3, base 31 g Hydroxylammonium sulfate 0.5 g Diethylene glycol 30 mL Optical brightener 2 g EDTA 10 g Potassium carbonate 60 g - The concentrate is light yellow and does not darken on storage.
-
One-part, one-phase developer concentrate: Antioxidant O-2 35 g Hydroxylammonium sulfate 0.5 g CD 3, base 31 g Diethylene glycol 30 mL Optical brightener 2 g EDTA 10 g Potassium carbonate 60 g - The concentrate is light yellow and does not darken on storage.
-
One-part, multi-phase developer concentrate: DEHX solution 60 mL CD 3, base 45 g Caprolactam 100 g Triethanolamine 80 mL Optical brightener 10 g Diethylenetriamine pentaacetic acid 40 g Potassium carbonate 165 g KOH 42 g - The upper phase of the concentrate undergoes distinct darkening on storage.
-
One-part, multi-phase developer concentrate: DEHX solution 60 mL Sodium sulfite 2 g CD 3, base 45 g Caprolactam 100 g Triethanolamine 80 mL Optical brightener 10 g EDTA 30 g Potassium carbonate 165 g KOH 42 g - The upper phase of the concentrate undergoes distinct darkening on storage.
-
One-part, multi-phase developer concentrate DEHX solution 60 mL Hydroxylammonium sulfate 0.6 g CD 3, base 45 g Caprolactam 100 g Triethanolamine 80 mL Optical brightener 10 g EDTA 30 g Potassium carbonate 165 g KOH 42 g - The upper phase of the concentrate is light yellow and does not darken on storage.
- A colour photographic recording material was produced by applying the following layers in the stated sequence onto a layer support of paper coated on both sides with polyethylene. Quantities are stated in each case per 1 m2. The silver halide application rate is stated as the corresponding quantities of AgNO3.
-
- 1st layer (substrate layer):
- 0.1 g of gelatine
- 2nd layer (blue-sensitive layer):
- Blue-sensitive silver halide emulsion (99.5 mol% AgCI, 0.5 mol% AgBr,
average grain diameter 0.9 µm) prepared from
- 0.50 g of gelatine
- 0.42 g of yellow coupler GB-1
- 0.18 g of yellow coupler GB-2
- 0.50 g of tricresyl phosphate (TCP)
- 0.10 of stabiliser ST-1
- 3rd layer (interlayer):
- 1.1 g of gelatine
- 0.06 g of scavenger SC-1
- 0.06 g of scavenger SC-2
- 0.12 g of TCP
- 4th layer (green-sensitive layer):
- Green-sensitive silver halide emulsion (99.5 mol% AgCl, 0.5 mol% AgBr,
average grain diameter 0.47 µm) prepared from
- 0.40 g of AgNO3
- 0.77 g of gelatine
- 0.21 g of magenta coupler PP-1
- 0.15 g of magenta coupler PP-2
- 0.05 g of magenta coupler PP-3
- 0.06 g of colour stabiliser ST-2
- 0.12 g of scavenger SC2
- 0.23 g of dibutyl phthalate
- 5th layer (UV protective layer):
- 1.15 g of gelatine
- 0.03 g of scavenger SC-1
- 0.03 g of scavenger SC-2
- 0.5 g of UV absorber UV-1
- 0.10 g of UV absorber UV-2
- 0.35 g of TCP
- 6th layer (red-sensitive layer):
- Red-sensitive silver halide emulsion (99.5 mol% AgCl, 0.5 mol% AgBr, average
grain diameter 0.5 µm) prepared from
- 0.30 g of AgNO3 with
- 1.0 g of gelatine
- 0.40 g of cyan coupler BG-1
- 0.05 g of cyan coupler BG-2
- 0.46 g of TCP
- 7th layer (UV protective layer):
- 0.35 g of gelatine
- 0.15 g UV-1
- 0.03 g UV-2
- 0.09 g of TCP
- 8th layer (protective layer):
- 0.9 g of gelatine
- 0.3 g of hardener HM
- 0.05 g of optical brightener W-1
- 0.07 g of vinylpyrrolidone
- 1.2 mg of silicone oil
- 2.5 mg of polymethyl methacrylate microspheres with an average particle diameter of 0.8 µm
-
- The colour photographic recording material is exposed and processed under the following conditions:
Step Time Temperature Development 27 sec 39°C Bleach/fixing 27 sec 35°C Stabilisation 54 sec 33°C - The colour developers used were ready-to-use developers prepared from the concentrates according to Examples 1 to 9.
-
Ammonium thiosulfate solution, 58 wt.% 100 mL Sodium disulfite 5 g Ammonium-iron EDTA, 48 wt.% 100 mL -
Water 900 mL Sodium sulfite 2 g Hydroxyethanediphosphonic acid disodium salt 4 g Sodium benzoate 0.5 g - The resultant images exhibited no significant differences with regard to their sensitometric properties.
Claims (6)
- One-part, optionally multi-phase, colour developer concentrate which contains at least one colour developer substance, at least one auxiliary solvent, an antioxidant, a buffer system and alkali, characterised in that the antioxidant is a mixture of 0.1 to 100 mmol/l of hydroxylamine and 0.01 to 4 mol/l of one or more substituted hydroxylamines.
- Colour developer concentrate according to claim 1, characterised in that it contains one or more water-soluble organic solvents as auxiliary solvent, wherein 50 to 95 wt.% of the total of water and solvent is water.
- Colour developer concentrate according to claim 1, characterised in that the colour developer substance is 4-(N-ethyl-N-2-methylsulfonylaminoethyl)-2-methylphenylenediamine.
- One-part colour developer concentrate according to claim 1, characterised in that the substituted hydroxylamine is of one of the formulae (I), (II) or (III): in which
- R1
- means optionally substituted alkyl,
- R2
- means optionally substituted alkyl or optionally substituted aryl and
- n
- means 0 or 1;
- R3
- means an optionally substituted alkyl or optionally substituted acyl group;
- R4
- means an alkylene group optionally interrupted by O atoms and
- m
- means a number of at least 2.
- One-part colour developer concentrate according to claim 1, characterised in that it contains at most 0.1 mol of sulfate ions/L.
- One-part colour developer concentrate according to claim 1, characterised in that it contains at most 0.05 mol of sulfate ions/L.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19956629A DE19956629A1 (en) | 1999-11-25 | 1999-11-25 | Color photographic developer concentrate |
DE19956629 | 1999-11-25 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1103853A1 EP1103853A1 (en) | 2001-05-30 |
EP1103853B1 true EP1103853B1 (en) | 2002-10-30 |
Family
ID=7930234
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00203480A Expired - Lifetime EP1103853B1 (en) | 1999-11-25 | 2000-10-05 | Colour photographic developer concentrate |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP1103853B1 (en) |
JP (1) | JP2001154322A (en) |
DE (2) | DE19956629A1 (en) |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5260185A (en) * | 1991-08-20 | 1993-11-09 | Konica Corporation | Concentrated color developer composition for silver halide photographic light-sensitive materials |
GB9623564D0 (en) * | 1996-11-13 | 1997-01-08 | Kodak Ltd | Photographic developer/amplifier process and solutions |
US5972573A (en) * | 1997-04-15 | 1999-10-26 | Konica Corporation | Image forming method |
US5891609A (en) * | 1997-12-15 | 1999-04-06 | Trebla Chemical Company | Photographic color developer replenishing concentrates |
-
1999
- 1999-11-25 DE DE19956629A patent/DE19956629A1/en not_active Withdrawn
-
2000
- 2000-10-05 DE DE60000675T patent/DE60000675T2/en not_active Expired - Fee Related
- 2000-10-05 EP EP00203480A patent/EP1103853B1/en not_active Expired - Lifetime
- 2000-11-24 JP JP2000357646A patent/JP2001154322A/en active Pending
Also Published As
Publication number | Publication date |
---|---|
EP1103853A1 (en) | 2001-05-30 |
DE60000675D1 (en) | 2002-12-05 |
DE60000675T2 (en) | 2003-07-03 |
DE19956629A1 (en) | 2001-06-13 |
JP2001154322A (en) | 2001-06-08 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US6413703B1 (en) | Color photographic developer concentrate | |
US5578427A (en) | Container having photographic conditioning solution concentrate | |
EP0534086B1 (en) | Bleach solution for colour photographic process | |
JPH02153348A (en) | Method of processing silver halide color photographic sensitive material | |
EP0530921A1 (en) | Photographic color developer formulation using an alpha amino acid for enhanced solution stability | |
EP1103853B1 (en) | Colour photographic developer concentrate | |
US6251573B1 (en) | Color photographic developer concentrate | |
JPH0621943B2 (en) | Silver halide color reversal photographic material | |
JPH07120894A (en) | Photographic processing composition and processing method | |
US6251574B1 (en) | Color photographic developer concentrate | |
JPH0434548A (en) | Processing method for silver halide color reversal photographic sensitive material | |
JP2002196460A (en) | Photographic processing composition containing bistriazinylarylendiamine derivative and diaminostilbene derivative and method of forming image | |
JP3041739B2 (en) | Processing solution having bleaching ability for silver halide color photographic light-sensitive materials | |
JP2002296743A (en) | Photographic processing composition containing heterocycle linking body and image forming method | |
US7108962B2 (en) | Photographic processing composition and image-forming method using the same | |
JP3860489B2 (en) | Photographic processing composition and image forming method | |
JP3078149B2 (en) | Processing method of silver halide color photographic light-sensitive material | |
JP3065775B2 (en) | Processing method of silver halide color photographic light-sensitive material | |
JP3086982B2 (en) | Processing solution having bleaching ability for silver halide color photographic light-sensitive materials | |
JPH01210957A (en) | Method for processing silver halide color photographic sensitive material | |
JPS6374060A (en) | Method for processing silver halide photographic sensitive material | |
DE10005498A1 (en) | Color photographic developer concentrate | |
EP1383000A1 (en) | Colour photographic developing concentrate | |
JP3135694B2 (en) | Concentrated composition of color developer for silver halide photographic materials | |
JP2002244259A (en) | Photographic processing composition containing sulfo substituted bistriazine compound and image forming method |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): BE DE FR GB IT |
|
AX | Request for extension of the european patent |
Free format text: AL;LT;LV;MK;RO;SI |
|
17P | Request for examination filed |
Effective date: 20011130 |
|
AKX | Designation fees paid |
Free format text: BE DE FR GB IT |
|
RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: AGFA-GEVAERT |
|
GRAG | Despatch of communication of intention to grant |
Free format text: ORIGINAL CODE: EPIDOS AGRA |
|
17Q | First examination report despatched |
Effective date: 20020408 |
|
GRAG | Despatch of communication of intention to grant |
Free format text: ORIGINAL CODE: EPIDOS AGRA |
|
GRAH | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOS IGRA |
|
GRAH | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOS IGRA |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): BE DE FR GB IT |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: FG4D |
|
REF | Corresponds to: |
Ref document number: 60000675 Country of ref document: DE Date of ref document: 20021205 |
|
ET | Fr: translation filed | ||
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 20030827 Year of fee payment: 4 |
|
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
26N | No opposition filed |
Effective date: 20030731 |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: 746 Effective date: 20040923 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20050630 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20061023 Year of fee payment: 7 Ref country code: GB Payment date: 20061023 Year of fee payment: 7 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: IT Payment date: 20061031 Year of fee payment: 7 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: BE Payment date: 20061123 Year of fee payment: 7 |
|
BECA | Be: change of holder's address |
Owner name: *A&O IMAGING SOLUTIONS G.M.B.H.ROONSTRASSE 9-11, D Effective date: 20050201 |
|
BECH | Be: change of holder |
Owner name: *A&O IMAGING SOLUTIONS G.M.B.H. Effective date: 20050201 |
|
BERE | Be: lapsed |
Owner name: *A&O IMAGING SOLUTIONS G.M.B.H. Effective date: 20071031 |
|
GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 20071005 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20080501 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: BE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20071031 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20071005 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20071005 |