EP0358034B1 - Développateur granulé pour la photographie en couleur et sa préparation - Google Patents
Développateur granulé pour la photographie en couleur et sa préparation Download PDFInfo
- Publication number
- EP0358034B1 EP0358034B1 EP89115441A EP89115441A EP0358034B1 EP 0358034 B1 EP0358034 B1 EP 0358034B1 EP 89115441 A EP89115441 A EP 89115441A EP 89115441 A EP89115441 A EP 89115441A EP 0358034 B1 EP0358034 B1 EP 0358034B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- granulated
- developer
- granules
- granulated materials
- mixture
- 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
- 238000002360 preparation method Methods 0.000 title claims description 7
- 239000008187 granular material Substances 0.000 claims description 41
- 239000002245 particle Substances 0.000 claims description 14
- 239000007787 solid Substances 0.000 claims description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 11
- 239000000203 mixture Substances 0.000 claims description 10
- 239000000843 powder Substances 0.000 claims description 10
- 239000003513 alkali Substances 0.000 claims description 8
- 239000003963 antioxidant agent Substances 0.000 claims description 7
- 230000003078 antioxidant effect Effects 0.000 claims description 7
- 239000000126 substance Substances 0.000 claims description 7
- 239000007788 liquid Substances 0.000 claims description 5
- 238000005054 agglomeration Methods 0.000 claims description 4
- 230000002776 aggregation Effects 0.000 claims description 4
- 239000011230 binding agent Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 claims 8
- 239000000470 constituent Substances 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 description 8
- GEHJYWRUCIMESM-UHFFFAOYSA-L sodium sulfite Chemical compound [Na+].[Na+].[O-]S([O-])=O GEHJYWRUCIMESM-UHFFFAOYSA-L 0.000 description 6
- 150000001875 compounds Chemical class 0.000 description 4
- 238000004806 packaging method and process Methods 0.000 description 4
- WVDDGKGOMKODPV-UHFFFAOYSA-N Benzyl alcohol Chemical compound OCC1=CC=CC=C1 WVDDGKGOMKODPV-UHFFFAOYSA-N 0.000 description 3
- 238000001035 drying Methods 0.000 description 3
- 235000010265 sodium sulphite Nutrition 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 description 2
- 239000008139 complexing agent Substances 0.000 description 2
- 235000008504 concentrate Nutrition 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 2
- 230000007717 exclusion Effects 0.000 description 2
- 150000004820 halides Chemical class 0.000 description 2
- 238000010902 jet-milling Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- IOLCXVTUBQKXJR-UHFFFAOYSA-M potassium bromide Chemical compound [K+].[Br-] IOLCXVTUBQKXJR-UHFFFAOYSA-M 0.000 description 2
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- CBCKQZAAMUWICA-UHFFFAOYSA-N 1,4-phenylenediamine Chemical compound NC1=CC=C(N)C=C1 CBCKQZAAMUWICA-UHFFFAOYSA-N 0.000 description 1
- QNGVNLMMEQUVQK-UHFFFAOYSA-N 4-n,4-n-diethylbenzene-1,4-diamine Chemical compound CCN(CC)C1=CC=C(N)C=C1 QNGVNLMMEQUVQK-UHFFFAOYSA-N 0.000 description 1
- 241001136792 Alle Species 0.000 description 1
- 229920002261 Corn starch Polymers 0.000 description 1
- QXNVGIXVLWOKEQ-UHFFFAOYSA-N Disodium Chemical class [Na][Na] QXNVGIXVLWOKEQ-UHFFFAOYSA-N 0.000 description 1
- KCXVZYZYPLLWCC-UHFFFAOYSA-N EDTA Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O KCXVZYZYPLLWCC-UHFFFAOYSA-N 0.000 description 1
- DBVJJBKOTRCVKF-UHFFFAOYSA-N Etidronic acid Chemical compound OP(=O)(O)C(O)(C)P(O)(O)=O DBVJJBKOTRCVKF-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 150000001491 aromatic compounds Chemical class 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 235000019445 benzyl alcohol Nutrition 0.000 description 1
- 239000008120 corn starch Substances 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000010410 dusting Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 238000004108 freeze drying Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000005469 granulation Methods 0.000 description 1
- 230000003179 granulation Effects 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 238000000265 homogenisation Methods 0.000 description 1
- VGYYSIDKAKXZEE-UHFFFAOYSA-L hydroxylammonium sulfate Chemical compound O[NH3+].O[NH3+].[O-]S([O-])(=O)=O VGYYSIDKAKXZEE-UHFFFAOYSA-L 0.000 description 1
- 229910000378 hydroxylammonium sulfate Inorganic materials 0.000 description 1
- 239000001013 indophenol dye Substances 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 235000014666 liquid concentrate Nutrition 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229910000027 potassium carbonate Inorganic materials 0.000 description 1
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 238000007873 sieving Methods 0.000 description 1
- 229910000030 sodium bicarbonate Inorganic materials 0.000 description 1
- 235000017557 sodium bicarbonate Nutrition 0.000 description 1
- 238000001694 spray drying Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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
- G03C5/265—Supplying of photographic processing chemicals; Preparation or packaging thereof of powders, granulates, tablets
Definitions
- the present invention relates to a granulated, color photographic developer and a manufacturing method of such a developer who quickly resolved can be.
- Color photographic developers usually include a number of solid components, e.g. the real one Developer substance, antioxidant, complexing agent, Sodium sulfite, alkali donors and alkali halides. Because these compounds react chemically with each other can, they are assembled separately and first mixed immediately before use.
- Such color developers are processed in the publication "Agglacolor Selst, Der Negativ / Positiv-Prozess ", pages 10, 11, 36, 37 (1972)”. Suitable assemblies are powders and liquid concentrates, the latter changing more and more over the years have prevailed, especially since some developers liquid Contain ingredients that understandably do not can be made up in powder form, for example Benzyl alcohol.
- the three or four concentrates in certain mixing ratios and optionally with the addition of Water mixed with stirring.
- the invention thus relates to a method for Production of a granular preparation of the solid Components of a color photographic developer, thereby characterized in that the antioxidant, the developer substance and the alkali donor of a color photographic developer separated on one Particle size ⁇ 10 microns, then optionally with the addition of a granulating liquid and a binder subject to powder agglomeration and in vacuo dries, mixes the individual granules and is water vapor-tight packed up.
- the granules of the solid components thus produced of a color photographic developer are mechanical stable, of uniform grain size, show a large Solution speed and unlimited durability are dust-free and free-flowing.
- the crushing of the solid components to particle sizes ⁇ 10 ⁇ m is usually done by jet milling.
- the powder agglomeration is preferably carried out in a fluidized bed performed, taking the one to be agglomerated Particles optionally granulating liquid, for example Add 200 ml water per kg powder and if necessary some binder, such as corn starch.
- the average particle diameter of the granules is ⁇ 150 ⁇ m and is in particular 150 to 3,000 ⁇ m.
- a protective gas for example nitrogen.
- the other components of the developer like anti-limescale, Complexing agent for heavy metal ions, sodium sulfite and alkali halide can also form granules processed and mixed into the mixture.
- each of these additives with one of the three essential ones Granulate components (developer substance, antioxidant or alkali dispenser) and to granulate.
- Suitable color developer compounds are aromatic compounds of the p-phenylenediamine type containing at least one primary amino group, for example N, N-dialkyl-p-phenylenediamines such as N, N-diethyl-p-phenylenediamine, 1- (N-ethyl-N-methanesulfonamidoethyl) -3 -methyl-p-phenylenediamine, 1- (N-ethyl-N-hydroxyethyl) -3-methyl-p-phenylenediamine and 1- (N-ethyl-N-methoxyethyl) -3-methyl-p-phenylenediamine.
- Other useful color developers are described, for example, in J. Amer. Chem. Soc. 73 , 3106 (1951) and G. Haist
- Another object of the invention is a granulate mixture containing at least 3 different granules of integral parts of a color photographic Developer, a granulate containing the antioxidant, a granulate the developer substance and a Granules containing the alkali dispenser, and the middle one Particle diameter of the individual granules at least Is 150 ⁇ m.
- 1 kg of crystallized hydroxylammonium sulfate is in an Alexander sieve with a mesh size of 0.6 mm and then in an air jet mill on one average particle diameter ⁇ 10 ⁇ m milled.
- the granules are 90 min. at 40 ° C in a vacuum post-dried.
- Mixture C Mixture D a) Disodium salt of 1-hydroxyethane-1,1-diphosphonic acid 34 g --- b) Sodium sulfite 39 g 39 g c) Ethylenediaminetetraacetic acid --- 24 g d) Potassium carbonate 336 g 336 g e) Sodium bicarbonate 15 g 15 g f) Potassium bromide 15 g 15 g 439 g 429 g
- the individual granules A, B, C and D are mixed in the following weight ratio in a laboratory mixer, whereby work must be carried out with the exclusion of moisture: Granules A 2.4 g Granules B 4.52 g Granules C 21.95 g Granules D 21.45 g total weight 50.32 g
- the mixed granulate is excluded from moisture (Transfer of very dry air) with plastic and aluminum foil laminated paper bags that be welded shut immediately.
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Silver Salt Photography Or Processing Solution Therefor (AREA)
- Cosmetics (AREA)
- Anti-Oxidant Or Stabilizer Compositions (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Claims (4)
- Mélange de produits de granulation contenant au moins trois produits de granulation différents de constituants solides d'un révélateur pour photographie en couleurs, dans lequel un produit de granulation contient l'agent de protection contre l'oxydation, un produit de granulation contient la substance développatrice et un produit de granulation contient le distributeur d'alcalis, le diamètre moyen des grains des produits de granulation individuels s'élevant à au moins 150 µm.
- Mélange de produits de granulation selon la revendication 1, dans lequel le diamètre moyen des grains des produits de granulation individuels s'élève de 150 à 3.000 µm.
- Mélange de produits de granulation selon la revendication 1, qui a été emballé pour lui conférer une étanchéité par rapport à la vapeur d'eau.
- Procédé pour la préparation d'un mélange de produits de granulation selon la revendication 1, caractérisé en ce qu'on broie séparément l'agent de protection contre l'oxydation, la substance développatrice et le distributeur d'alcalis d'un révélateur pour photographie en couleurs pour obtenir une granulométrie <10 µm, on les soumet ensuite à une agglomération des poudres le cas échéant avec addition d'un liquide de granulation et d'un liant, et on les sèche sous vide, on mélange les produits de granulation individuels et on les emballe pour leur conférer une étanchéité par rapport à la vapeur d'eau.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3830023A DE3830023A1 (de) | 1988-09-03 | 1988-09-03 | Granulierter, farbfotografischer entwickler und seine herstellung |
DE3830023 | 1988-09-03 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0358034A2 EP0358034A2 (fr) | 1990-03-14 |
EP0358034A3 EP0358034A3 (fr) | 1990-06-06 |
EP0358034B1 true EP0358034B1 (fr) | 1999-07-28 |
Family
ID=6362256
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP89115441A Expired - Lifetime EP0358034B1 (fr) | 1988-09-03 | 1989-08-22 | Développateur granulé pour la photographie en couleur et sa préparation |
Country Status (4)
Country | Link |
---|---|
US (1) | US4923786A (fr) |
EP (1) | EP0358034B1 (fr) |
JP (1) | JP2793853B2 (fr) |
DE (2) | DE3830023A1 (fr) |
Families Citing this family (38)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3830023A1 (de) | 1988-09-03 | 1990-03-15 | Agfa Gevaert Ag | Granulierter, farbfotografischer entwickler und seine herstellung |
US5055384A (en) * | 1989-05-10 | 1991-10-08 | Agfa Gevaert Aktiengesellschaft | Granulated photographic fixative and its preparation |
DE3920921A1 (de) * | 1989-06-27 | 1991-01-03 | Agfa Gevaert Ag | Granuliertes, farbfotografisches bleichmittel und seine herstellung |
US5098819A (en) * | 1990-01-31 | 1992-03-24 | Knapp Audenried W | Non-toxic photographic developer composition |
DE4009310A1 (de) * | 1990-03-23 | 1991-09-26 | Agfa Gevaert Ag | Granulierte fotochemikalien |
JPH0485536A (ja) * | 1990-07-30 | 1992-03-18 | Konica Corp | 包装された写真用固形処理剤 |
DE4025560A1 (de) * | 1990-08-11 | 1992-02-13 | Agfa Gevaert Ag | Fotochemikalien mit vermindertem staubanteil |
EP0509807A1 (fr) * | 1991-04-15 | 1992-10-21 | Konica Corporation | Kit de produits chimiques pour le traitement d'un matériau photographique à l'halogénure d'agent et procédé pour sa dissolution |
US5780211A (en) * | 1991-05-01 | 1998-07-14 | Konica Corporation | Processing composition in the tablet form for silver halide photographic light-sensitive material |
EP0540990B1 (fr) * | 1991-11-06 | 1998-07-15 | Konica Corporation | Agent de traitement sous forme de tablette et procédé pour le traitement de matériaux photographiques sensibles à la lumière à l'halogénure d'argent |
EP0542283A1 (fr) * | 1991-11-12 | 1993-05-19 | Konica Corporation | Comprimé pour la traitement d'un matériau photographique à l'halogénure d'argent sensible à la lumière |
JP2700841B2 (ja) * | 1991-11-20 | 1998-01-21 | コニカ株式会社 | ハロゲン化銀カラー感光材料処理用錠剤及びその製造方法 |
US5270154A (en) * | 1992-01-31 | 1993-12-14 | Fuji Hunt Photographic Chemicals Inc. | Method of making flowable alkaline thiosulfate/alkaline sulfite and the product thereof |
US5384233A (en) * | 1992-06-15 | 1995-01-24 | Konica Corporation | Chemicals kit including a container formed of multilayer film, for processing photographic light-sensitive materials |
JP2929339B2 (ja) * | 1992-07-16 | 1999-08-03 | コニカ株式会社 | 白黒写真用処理剤 |
JP2916970B2 (ja) * | 1992-10-13 | 1999-07-05 | 富士写真フイルム株式会社 | カラー写真用発色現像組成物 |
DE69406817T2 (de) * | 1993-01-19 | 1998-05-28 | Konishiroku Photo Ind | Feste Zusammensetzung zur Verarbeitung von photographischen lichtempfindlichen Silberhalogenidfarbmaterialien und deren Verarbeitungsverfahren |
US5480768A (en) * | 1993-02-17 | 1996-01-02 | Konica Corporation | Method for processing exposed silver halide photographic light-sensitive material using a solid processing composition replenisher |
JPH07114151A (ja) * | 1993-08-23 | 1995-05-02 | Konica Corp | ハロゲン化銀写真感光材料用固体処理剤 |
JPH07248585A (ja) * | 1994-01-21 | 1995-09-26 | Konica Corp | ハロゲン化銀写真感光材料現像用固体処理剤 |
JPH07248597A (ja) * | 1994-03-09 | 1995-09-26 | Konica Corp | ハロゲン化銀写真感光材料用自動現像機およびハロゲン化銀写真感光材料用固体処理剤の供給方法および供給装置 |
DE69520079T2 (de) | 1994-04-19 | 2001-06-21 | Konica Corp., Tokio/Tokyo | Herstellungsverfahren für feste Verarbeitungszusammensetzungen für photographische, lichtempfindliche Silberhalogenidmaterialien |
JPH0829924A (ja) * | 1994-05-09 | 1996-02-02 | Konica Corp | ハロゲン化銀カラー写真感光材料用発色現像剤造粒物、その造粒方法、該造粒物を用いた固体処理剤および錠剤型固体処理剤 |
EP0687950A1 (fr) | 1994-05-27 | 1995-12-20 | Konica Corporation | Composition de traitement sous forme de granulés ou comprimés pour le traitement d'un matériau photographique à l'halogénure d'argent |
EP0691571B1 (fr) * | 1994-06-14 | 2000-08-30 | Konica Corporation | Granulé ou tablette de développement pour matériaux photographiques à l'halogénure d'argent sensibles à la lumière et procédé de fabrication de ceux-ci |
US5557362A (en) | 1994-06-16 | 1996-09-17 | Konica Corporation | Silver halide photosensitive material automatic developing apparatus |
JPH0869098A (ja) | 1994-08-31 | 1996-03-12 | Konica Corp | ハロゲン化銀写真感光材料用自動現像機 |
US5624793A (en) | 1994-11-11 | 1997-04-29 | Konica Corporation | Method of manufacturing solid processing composition for silver halide photographic light-sensitive materials |
JPH08160588A (ja) | 1994-12-06 | 1996-06-21 | Konica Corp | ハロゲン化銀写真感光材料用自動現像機 |
JP3574986B2 (ja) | 1996-01-16 | 2004-10-06 | コニカミノルタホールディングス株式会社 | ハロゲン化銀写真感光材料用固体処理剤及びハロゲン化銀写真感光材料の処理方法 |
US5945265A (en) * | 1998-03-26 | 1999-08-31 | Eastman Kodak Company | Uniformly mixed dry photographic developing composition containing antioxidant and method of preparation |
US5922521A (en) * | 1998-03-26 | 1999-07-13 | Eastman Kodak Company | Uniformly mixed dry photographic processing composition and method of preparation |
US5900355A (en) * | 1998-03-26 | 1999-05-04 | Eastman Kodak Company | Method of making uniformly mixed dry photographic processing composition using hot melt binder |
US6077653A (en) * | 1998-07-29 | 2000-06-20 | Eastman Kodak Company | Photographic developing compositions and methods of using 1,4-cyclohexanediones as antioxidants |
US6130029A (en) * | 1999-06-14 | 2000-10-10 | Eastman Chemical Company | Stabilized phenylenediamine color developer compositions |
US7135275B2 (en) | 2003-08-28 | 2006-11-14 | Fuji Photo Film Co., Ltd. | Solid bleach-fixing composition for silver halide color photographic light-sensitive material, and method for processing silver halide color photographic light-sensitive material |
JP5588597B2 (ja) | 2007-03-23 | 2014-09-10 | 富士フイルム株式会社 | 導電性材料の製造方法及び製造装置 |
US8426749B2 (en) | 2007-05-09 | 2013-04-23 | Fujifilm Corporation | Electromagnetic shielding film and optical filter |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB190906652A (en) * | 1909-03-19 | 1910-01-27 | Oppenheimer Son And Company Lt | Improvements relating to Preparation and Packeting of Chemical Substances used in Photography. |
US3981732A (en) * | 1971-08-19 | 1976-09-21 | Fuji Photo Film Co., Ltd. | Granular p-phenylenediamine color developing agent |
NL7402981A (fr) * | 1973-03-16 | 1974-09-18 | ||
JPS511425A (en) * | 1974-06-18 | 1976-01-08 | Matsushita Electric Ind Co Ltd | Azobenzenjudotaino seizohoho |
JPS51151135A (en) * | 1975-06-09 | 1976-12-25 | Fuaburika Kimufuoto | Method of producing black and white movie and photographic film treating special composition developing reagent |
DK166954B1 (da) * | 1985-03-28 | 1993-08-09 | Deltagraph As | Fremgangsmaade til emballering af to indbyrdes reaktive, partikelformede stoffer |
US5314069A (en) | 1985-03-28 | 1994-05-24 | Deltagraph A/S | Process for obtaining a package containing mutually reactive particulate materials and a package containing such materials |
JPS62110739A (ja) * | 1985-11-06 | 1987-05-21 | Dai Ichi Kogyo Seiyaku Co Ltd | 水溶性セルロ−ス誘導体の顆粒化法 |
US4816384A (en) * | 1986-10-09 | 1989-03-28 | E. I. Du Pont De Nemours And Company | Powdered packaged developer |
DE3830023A1 (de) | 1988-09-03 | 1990-03-15 | Agfa Gevaert Ag | Granulierter, farbfotografischer entwickler und seine herstellung |
-
1988
- 1988-09-03 DE DE3830023A patent/DE3830023A1/de not_active Withdrawn
-
1989
- 1989-08-18 US US07/395,598 patent/US4923786A/en not_active Expired - Lifetime
- 1989-08-22 DE DE58909852T patent/DE58909852D1/de not_active Expired - Fee Related
- 1989-08-22 EP EP89115441A patent/EP0358034B1/fr not_active Expired - Lifetime
- 1989-09-02 JP JP1226400A patent/JP2793853B2/ja not_active Expired - Lifetime
Non-Patent Citations (1)
Title |
---|
"Agfacolor Selbst Verarbeitet, Der Negativ/Positiv-Prozess", 1972, Seiten 10,11,36 und 37 * |
Also Published As
Publication number | Publication date |
---|---|
US4923786A (en) | 1990-05-08 |
EP0358034A3 (fr) | 1990-06-06 |
JP2793853B2 (ja) | 1998-09-03 |
DE58909852D1 (de) | 1999-09-02 |
EP0358034A2 (fr) | 1990-03-14 |
DE3830023A1 (de) | 1990-03-15 |
JPH02109042A (ja) | 1990-04-20 |
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