EP0085912B1 - Dispositif pour le développement d'images photo en couleur - Google Patents

Dispositif pour le développement d'images photo en couleur Download PDF

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Publication number
EP0085912B1
EP0085912B1 EP83100788A EP83100788A EP0085912B1 EP 0085912 B1 EP0085912 B1 EP 0085912B1 EP 83100788 A EP83100788 A EP 83100788A EP 83100788 A EP83100788 A EP 83100788A EP 0085912 B1 EP0085912 B1 EP 0085912B1
Authority
EP
European Patent Office
Prior art keywords
container
vessel
mono
sheet material
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.)
Expired
Application number
EP83100788A
Other languages
German (de)
English (en)
Other versions
EP0085912A1 (fr
Inventor
Immo Dr. Boie
Guido Kovacic
Victor Dipl.-Ing. Osegowitsch
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 EP0085912A1 publication Critical patent/EP0085912A1/fr
Application granted granted Critical
Publication of EP0085912B1 publication Critical patent/EP0085912B1/fr
Expired legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03D—APPARATUS FOR PROCESSING EXPOSED PHOTOGRAPHIC MATERIALS; ACCESSORIES THEREFOR
    • G03D13/00—Processing apparatus or accessories therefor, not covered by groups G11B3/00 - G11B11/00
    • G03D13/02—Containers; Holding-devices
    • G03D13/04—Trays; Dishes; Tanks ; Drums
    • G03D13/06—Light-tight tanks with provision for loading in daylight

Definitions

  • the invention relates to a device for developing color photographic images by the color diffusion process, the image-wise exposed image sheet is brought into contact with an aqueous alkaline working solution in a vessel according to the tilting method.
  • a light-sensitive element which contains color-imparting compounds and an image-receiving element in which the desired color image is produced by image-transferring diffusing dyes is usually used.
  • the contact can be made after development has started or it can have been made before development begins. The latter is the case, for example, if a material is used in which the light-sensitive element and the image-receiving element form an integral unit.
  • Embodiments of the color diffusion method are known in which such an integral unit continues to exist even after the development process has ended; d. H. a separation of the photosensitive element from the image receiving element is not provided even after the color transfer.
  • such an embodiment consists of a transparent layer support, light-sensitive elements, an opaque light-reflecting layer and an image-receiving layer, which together form a firm layer structure, into which an aqueous alkaline solution can penetrate from the side opposite the layer support .
  • the imagewise exposure of the color photographic recording material is generally carried out in a dark room, e.g. B. in contact with a transparent colored template or using a conventional projection enlarger.
  • simple processing which essentially consists in bringing the exposed color photographic recording material into contact with an alkaline developer solution.
  • This can be done, for example, by immersing the material in a suitable developer bath in the usual way or by applying a developer preparation in the form of a paste to the image-receiving layer of the color photographic material.
  • a developer preparation in the form of a paste to the image-receiving layer of the color photographic material.
  • simple alkaline baths or pastes can also be used if the necessary developer substances, e.g. B. phenidone or its derivatives are embedded in one or more layers of the color photographic recording material, for example in the image receiving layer, the opaque light-reflecting layer or one or more layers of the light-sensitive element.
  • Development with liquid developer baths can be carried out in trays or tanks.
  • the color photographic recording material according to DE-A No. 3045183 can be brought to light after an initial dark processing time of one to two minutes, so that the formation of the color transfer image in the image-receiving layer can be observed without the subsequent exposure having any appreciable influence on what is to be produced Color image exercises.
  • the development of silver halide is not yet complete and silver halide which has been exposed to light is further developed, which manifests itself in the fact that the light-sensitive element which is visible through the transparent layer support becomes darker, but this has essentially no effect on the quality of the color image to be produced.
  • Development vessels are known in which the material to be developed is introduced in the dark and the vessel is then closed. Through the inlet and outlet valve or openings, the various chemical solutions are brought into the vessel one after the other in the light and then released again after their reaction. After development, the vessel is opened and the developed material, such as photographic paper or film, is removed, watered and dried. These devices are very complicated in their structure and function and are not suitable for developing commercially available images using the color diffusion process.
  • a pocket dark chamber which consists of a rectangular part for receiving a photographic plate, the part being threaded and on bottles with developer solution, fixer solution and water can be screwed on.
  • developer solution fixer solution
  • water fixer solution
  • water water
  • a ball valve is opened so that the chemical solutions can access the photographic plate and react with it.
  • the device is very complex and due to the risk of chemical burns when using alkaline working solutions not suitable for the development process described above using the color diffusion process.
  • the invention has for its object to provide a device for developing color photographic images by the color diffusion process, with which it is possible in a simple manner to develop the images as bright as possible and to avoid burns or damage by the aqueous alkaline working solution.
  • a cylindrical vessel for receiving the working solution is provided at the upper edge with a threaded sleeve and underneath with a protection against accidental contact, and a further cylindrical vessel in which the image to be developed is exposed imagewise Mono-sheet material is included, contains a holding device for the mono-sheet material and a thread core with which it can be screwed into the threaded sleeve of the vessel and can be sealed with this.
  • the developing device according to the invention is surprisingly simple to manufacture and to use. It offers sufficient protection against contact with the alkaline solution in the vessel and prevents the sheet to be developed from falling out when the vessel containing the sheet is tilted so that it can be screwed onto the vessel with the working solution.
  • the processing of the mono-sheet material is extremely simple with the device according to the invention.
  • the mono sheet is exposed in the darkroom with a conventional color enlarger and placed in the vessel 2 and secured against falling out with a holding device.
  • the vessel 2 is screwed onto the vessel 1 and can then be brought into a light room. By tilting the vessel 1 upwards, the monosheet material is brought into contact with the working solution. Tempering or moving the working solution during the development time is not necessary for monosheet material according to DE-A No. 3045183.
  • the development process is finished after just a minute and a half. The two vessels are tilted again so that the working solution runs back into their vessel.
  • the container with the monosheet material is unscrewed in the light, the remaining working solution is removed by watering and the monosheet material is removed and dried as usual.
  • the working solution can be used for many successive developments of mono sheets.
  • the contact protection which prevents reaching into the alkaline working solution, can be a perforated disk which has a multiplicity of holes which are, for example, smaller than five millimeters in diameter.
  • the contact protection in the vessel with the working solution is a valve which can only be opened by screwing the other vessel onto the vessel with the working solution and otherwise tightly closes the vessel.
  • This embodiment has the considerable advantage that even if the vessel falls over, no alkali solution can escape and cause damage, which is particularly advantageous when handling the device in the dark.
  • the container with the working solution can be hermetically sealed when not in use with a closure part that has a threaded core and can thus serve as a storage container. This means that it is no longer necessary to fill the original storage bottle.
  • the holding device for preventing the mono-sheet material from falling out can be a removable clamping ring.
  • this requires that the light-sensitive material must be screwed onto the working solution vessel in the dark room in order to prevent unwanted exposure.
  • An advantageous further development of the device is characterized in that the holding device consists of a removable labyrinth, which allows the working solution to enter and exit, but protects the interior of the vessel from light.
  • An advantageous embodiment of the device is characterized in that the inner wall of the vessel is provided with longitudinal ribs which reduce the adhesion of the mono-sheet material to the inner walls and facilitate the removal of the developed sheet.
  • An advantageous further development is characterized in that a removable annular or spiral insert with inward longitudinal ribs is provided, which is interrupted in such a way that the monosheet material can be inserted into the vessel with at least two turns without touching the image side to be developed.
  • This application makes it possible to develop longer formats of the mono-sheet material, such as strips, without giving the containers an unwieldy dimension.
  • the imagewise exposed mono-sheet is simply inserted into the spiral-shaped insert and placed around its outer circumference and thus inserted into the vessel and secured with a holding device.
  • the vessel according to FIG. 1 is cylindrical and has a threaded sleeve 7 at its upper edge for receiving the vessel 2 according to FIG. 2.
  • a rubber seal 6 is inserted below the thread to seal the two vessels 1, 2.
  • a contact protection 5 is inserted into the cylindrical inner part of the vessel 1, for example glued, screwed or pressed.
  • the contact protection 5 prevents accidental reaching into the vessel 1, which is filled with the caustic aqueous-alkaline working solution 4.
  • the threaded sleeve is attached to the vessel 1 in order to catch any alkaline solution that is still dripping when the vessels 1 and 2 are screwed apart.
  • the vessel 2 according to FIG. 2 serves to receive an imagewise exposed mono-sheet material 11 and is provided with a threaded core 9.
  • a holding device 10 is inserted into the vessel after the monosheet material 11 has been inserted.
  • the holding device is a clamping ring which prevents it from falling out, but allows free flow through the openings provided in the working solution.
  • Fig. 3 shows a closure part 3 for closing the vessel 1 when it is not in use.
  • the closure part 3 is provided with a thread core 9, has a rimmed edge 12 and / or a rib 13 for screwing the closure part 3 into the thread of the vessel 1.
  • the device even in this very simple and inexpensive embodiment, is reliable and allows error-free development of color photographic images in the manner described above.
  • these can be provided with grooves or knurls on their outer circumference, in part or even over the entire circumference, which facilitate opening and closing. Since the device is partially used in dark rooms, the vessels 1, 2 can be provided with luminous marks, which make it easier to find the upper and lower vessels 1, 2 and also screw them together (not shown).
  • FIGS. 4 to 6 show a further development of the device, the vessel 1 being closed with valves 12 until the vessel 2 is on the vessel 1 is screwed on.
  • valve 12 which consists of a valve plate 16 and a valve plate 14.
  • a rubber spring 15 presses the valve plate 14 against the valve plate 16 in the idle state and hermetically seals the vessel 1. If the vessel 2 is screwed onto the vessel 1, the holding device 10 presses against the rubber spring and opens the valve 12, so that the working solution 4 can flow from vessel 1 to 2 and vice versa in both directions (see arrows). It is advantageous that the valve 12 is only opened if the holding device 10 for securing the monosheet material is inserted into the vessel 2 and the material to be developed is thus secured and cannot fall out.
  • Fig. 5 shows a valve 12, consisting of a valve plate 17 which is fixedly attached in the vessel 1 and has openings 13 which are closed in the rest position by a seal 21 on a valve plate 18.
  • the closure is effected by a spring 20 which is arranged in a housing 19 and connects the housing to the valve plate 18. If the vessel 2 is now screwed onto the vessel 1, the outer edge of the vessel 2 presses the housing 19 downward against the spring 20 so that the working solution can flow back and forth between the vessels (see arrows). When the vessel 2 is unscrewed, the valve 12 closes again immediately.
  • FIG. 6 shows a further advantageous embodiment of a valve 12 for closing the vessel 1.
  • the valve 12 consists of a valve plate 24 fixedly mounted in the vessel and a movable valve plate 23, which with its seal 27 is pressed against the valve plate 24 by rubber springs 25 and hermetically seals the vessel 1. If the vessel 2 is screwed onto the vessel 1, similar to FIG. 4, the holding device 10 presses against the rubber springs 25, presses them together and opens the valve 12 so that the working solution can flow through (see arrows).
  • valve designs described differ in that the valve 12 according to FIG. 5 can also function without a holding device 10, while the valves 12 of FIGS. 4 and 6 work in cooperation with the holding device 10.
  • the valve 12 of FIG. 4 is actuated by the center of the holding device 10 and is therefore more suitable for vessels 1, 2 with a smaller diameter.
  • the valve 12 of FIG. 6 is actuated on the edge 26 of the holding device 10 and is particularly advantageous for vessels 1, 2 with a large diameter.
  • valves 12 are screwed into the vessel 1 so that they can be removed to clean or empty the vessel. However, they can also be welded or glued in, a closure part according to FIG. 3 being used for emptying and rinsing the vessel 1, which has bores in order to drain off the working solution and to let in rinsing liquids (shown in dashed lines).
  • Fig. 7 shows an embodiment of the vessel 2, in which the holding device 10 is designed in a simple manner as a labyrinth. After the imagewise exposure of the mono-sheet material 11, it is placed in the vessel 2 and secured against falling out and against unwanted exposure by the labyrinth holding device 10.
  • the labyrinth-shaped holding device 10 consists of three or more circular plates 28, 29, 30, the bores or openings 31 of which are offset from one another in such a way that the liquid can flow through, but light cannot pass through.
  • the upper plate 28 has a central bore 31 and is fastened with webs 32 to the central plate 29, which has a smaller diameter than the first plate 28.
  • One or two of the plates 28, 30 are provided with a device with which they are fastened in the vessel 2, for example with a thread, a plug or twist lock (bayonet lock) or a plate 28, 30 is designed and clamped as a clamping plate with the inner wall or in a groove located there.
  • the labyrinth can also be formed by other arrangements of more or fewer plates.
  • An embodiment is also conceivable, in which two plates with bores can be rotated relative to one another, so that the bores are concealed from one another in a first position of the plates and prevent access to the light and lie one above the other in a second position and give free access to the working solution.
  • the plates can be rotated relative to one another when the vessel 2 is screwed into the vessel 1, a cam in the vessel 1 causing one of the plates to be rotated (not shown).
  • the labyrinth-like design of the holding device 10 has the advantage over the simple clamping ring that only the vessel 2 has to be taken into the dark room, the imagewise exposed monosheet material is inserted there and the vessel 2 is closed with the labyrinth-like holding device.
  • the screwing of the vessel 2 onto the vessel 1, the development and the removal of the monosheet material can be carried out in the light room.
  • the alkaline working solution always remains in the light room.
  • the insert 33 consists of an annular disc 34, on which a partition 35 is mounted standing vertically, which is open on one side.
  • the partition 35 serves as a spacer for the mono-sheet material 11, so that a greater length of the material 11 can be introduced into the vessel 2 without the surface of the material (11) touching.
  • the monosheet material 11 is either inserted into the vessel 2 from above or the insert 33 is removed from the vessel, the monosheet material 11 tangentially along the partition 35 up to inserted the stop 36 formed and then placed around the insert 33 and pushed together with this into the vessel and secured by the holding device 10.
  • the holding device 10 can be both a clamping ring or a labyrinth.
  • the insert 33 it is possible to introduce and develop almost twice the length of a monosheet material 11 in the vessel 2.
  • the insert 33 can also be designed as a spiral, so that the partition 35 makes several turns and can thus accommodate even greater lengths of the mono-sheet material 11 (not shown).
  • the inner walls of the vessel 2 and the inner sides of the insert 33 are advantageously grooved or provided with slightly inwardly projecting rounded webs 36 ′, which prevent intimate contact of the sheet material 11 with the inner surfaces of the vessel 2 and insert 33 and thus only a slight one cause linear arrangement.
  • the device is advantageously made of plastic, but can also be made of stainless steel.
  • the use of the device is not only limited to the development of color photographic images, but is also suitable in the same way for black and white images which are developed using the color diffusion method or also with a fixing developer.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Photographic Developing Apparatuses (AREA)

Claims (8)

1. Dispositif pour le développement d'images photographiques en couleur selon le procédé de la diffusion des couleurs, où l'article d'une seule feuille exposé à titre d'image est mis en contact avec une solution active alcaline dans l'eau dans un récipient selon la méthode du renversement, caractérisé en ce qu'un premier récipient cylindrique (1 ) servant à recevoir la solution active (4) comporte sur son bord supérieur une douille filetée (7) et, par-dessous, une protection de contact (5), et en ce qu'un autre récipient cylindrique (2), dans lequel on peut introduire l'article d'une seule feuille (11 ), exposé à titre d'image et à développer, contient un dispositif d'arrêt (10) pour l'article d'une seule feuille (11 ) et un filetage mâle (9) avec lequel on peut le visser dans la douille filetée (7) du premier récipient (1) et le fermer de façon étanche avec ce récipient.
2. Dispositif selon la revendication 1, caractérisé en ce que la protection de contact (5) est un disque perforé qui interdit de pénétrer dans la solution active.
3. Dispositif selon la revendication 1, caractérisé en ce que la protection de contact (5) dans le récipient (1 ) est une soupape (12) qui ne peut s'ouvrir qu'après avoir vissé le récipient (2) sur le récipient (1 ) et qui, à défaut, ferme de façon étanche le récipient (1 ).
4. Dispositif selon la revendication 1, caractérisé en ce qu'un obturateur (3) est prévu pour fermer le récipient (1 ) lorsque l'on ne l'utilise pas et qu'il comporte un filetage mâle (9).
5. Dispositif selon la revendication 1, caractérisé en ce que le dispositif d'arrêt (10) pour interdire que l'article d'une seule pièce (11) ne tombe au-dehors est une bague de blocage que l'on peut enlever.
6. Dispositif selon la revendication 1, caractérisé en ce que le dispositif d'arrêt (10) est constitué d'un labyrinthe (28, 29, 30) que l'on peut enlever, qui laisse entrer et sortir la solution active (4) mais qui protège l'intérieur du récipient à l'égard de la lumière.
7. Dispositif selon la revendication 1, caractérisé en ce que la paroi interne du récipient (2) comporte des nervures longitudinales (36) qui diminuent l'adhérence de l'article d'une seule feuille (11) aux parois internes du récipient (2).
8. Dispositif selon la revendication 1, caractérisé en ce qu'il est prévu une garniture (33) de forme circulaire ou de forme spirale, que l'on peut enlever, comportant des nervures longitudinales (36') dirigées vers l'intérieur, garniture qui est interrompue à sa périphérie, de sorte que l'on peut introduire l'article d'une seulefeuille (11) comportant au moins deux spires dans le récipient (2) sans que la face de l'image à développer ne se touche.
EP83100788A 1982-02-10 1983-01-28 Dispositif pour le développement d'images photo en couleur Expired EP0085912B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19828203539U DE8203539U1 (de) 1982-02-10 1982-02-10 Vorrichtung zur entwicklung farbfotografischer bilder
DE8203539U 1982-02-10

Publications (2)

Publication Number Publication Date
EP0085912A1 EP0085912A1 (fr) 1983-08-17
EP0085912B1 true EP0085912B1 (fr) 1985-09-04

Family

ID=6736901

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83100788A Expired EP0085912B1 (fr) 1982-02-10 1983-01-28 Dispositif pour le développement d'images photo en couleur

Country Status (4)

Country Link
US (1) US4486085A (fr)
EP (1) EP0085912B1 (fr)
JP (1) JPS58135744U (fr)
DE (2) DE8203539U1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS616839U (ja) * 1984-06-16 1986-01-16 ノーリツ鋼機株式会社 自動現像装置の処理槽
DE3821586A1 (de) * 1988-06-25 1990-01-04 Otto Dr Walter Roentgenfilm-entwicklungskassette und vorrichtung zur entwicklung des darin befindlichen roentgenfilmes
ES2029652A6 (es) * 1991-03-26 1992-08-16 Ramos Felipe Gregorio Procesadora de revelado.
SI9700064A (en) * 1997-03-18 1997-08-31 Branko Pintaric Apparatus for homogenization and stabilization of printings on carbon basis

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB145996A (en) * 1919-07-31 1920-07-08 Albert Richard Turner Improvements in apparatus for developing and fixing photographic films
US1501904A (en) * 1920-06-10 1924-07-22 Utilities Dev Corp Apparatus for developing photographs
DE522639C (de) * 1929-06-08 1931-04-11 Michael Meyer Taschen-Dunkelkammer
DE651146C (de) * 1933-11-03 1937-10-08 Noel Pemberton Billing Geraet fuer photographische Tageslichtentwicklung
DE1090960B (de) * 1958-04-30 1960-10-13 Agfa Ag Tageslicht-Entwicklungsgeraet fuer Blattfilm-Packungen
GB1284722A (en) * 1968-08-10 1972-08-09 Simon Ratowsky Processing of photographic material
DE2743791C2 (de) * 1977-09-29 1985-04-25 JOBO Labortechnik GmbH u. Co KG, 5270 Gummersbach Verschlußkappe für Deckel an Tanks, Trommeln o.dgl. zur Entwicklung von fotografischem Material
FR2488702A1 (fr) * 1980-08-14 1982-02-19 Diaralux Cuve de developpement photographique

Also Published As

Publication number Publication date
US4486085A (en) 1984-12-04
DE8203539U1 (de) 1982-07-22
EP0085912A1 (fr) 1983-08-17
DE3360690D1 (en) 1985-10-10
JPS58135744U (ja) 1983-09-12

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