EP0773476B1 - Verarbeitungsvorrichtung für fotografische Materialien - Google Patents

Verarbeitungsvorrichtung für fotografische Materialien Download PDF

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Publication number
EP0773476B1
EP0773476B1 EP96117260A EP96117260A EP0773476B1 EP 0773476 B1 EP0773476 B1 EP 0773476B1 EP 96117260 A EP96117260 A EP 96117260A EP 96117260 A EP96117260 A EP 96117260A EP 0773476 B1 EP0773476 B1 EP 0773476B1
Authority
EP
European Patent Office
Prior art keywords
rollers
processing
roller
casing
cascade
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
EP96117260A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0773476A1 (de
Inventor
Ubbo Dr. Wernicke
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 NV
Original Assignee
Agfa Gevaert NV
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 NV, Agfa Gevaert AG filed Critical Agfa Gevaert NV
Publication of EP0773476A1 publication Critical patent/EP0773476A1/de
Application granted granted Critical
Publication of EP0773476B1 publication Critical patent/EP0773476B1/de
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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
    • G03D3/00—Liquid processing apparatus involving immersion; Washing apparatus involving immersion
    • G03D3/08—Liquid processing apparatus involving immersion; Washing apparatus involving immersion having progressive mechanical movement of exposed material
    • G03D3/13—Liquid processing apparatus involving immersion; Washing apparatus involving immersion having progressive mechanical movement of exposed material for long films or prints in the shape of strips, e.g. fed by roller assembly
    • G03D3/132—Liquid processing apparatus involving immersion; Washing apparatus involving immersion having progressive mechanical movement of exposed material for long films or prints in the shape of strips, e.g. fed by roller assembly fed by roller assembly

Definitions

  • the invention relates to a device and a method for wet chemical processing a photographic material, especially a color negative material, the contains at least one silver halide emulsion layer on a carrier and with the Developing steps, if necessary bleaching, fixing, watering or stabilizing is processed, bleaching and fixing combined for bleach-fixing can be.
  • the invention relates to such a device, which is particularly space-saving but is still powerful and is characterized by particularly economical chemical consumption distinguished.
  • Such devices called “Minilab”, are numerous in use and are used to make prints by processing the exposed photographic material used. These minilabs run one when processed color photographic material, especially a color photographic paper usually 5 processing stages through: color development, bleaching, fixing, stabilizing and drying.
  • Such a processing machine is known from EP 501 273.
  • a so-called "rack" i.e. a stand on which several pairs of rollers perpendicular are mounted one above the other, the axes of the rollers parallel to the horizontal and the rollers of each pair of rollers are arranged parallel to each other are.
  • a liquid supply is provided under the top pair of rollers.
  • the photographic Material is fed upwards through the pairs of rollers before it enters the next tank or into the drying.
  • the supply of liquid results in a cleaning countercurrent cascade from roller pair to roller pair.
  • the device thus allows considerable chemical savings by avoiding chemical carryover in the next Tank and allows a compact design.
  • roller pairs are at a standstill run dry. If you want to prevent this, you have to, even if there is no photographic material is constantly drizzled with liquid from above, causing the Unacceptably increased fluid consumption.
  • DE 32 30 175 A describes a device for wet treatment of photographic Layer support with several pairs of rollers horizontally attached to each other which the photographic support is carried out in a common, with wet treatment liquid filled tub, with the treatment liquid across to the direction of transport of the material. There is no cascade.
  • the object of the present invention is the disadvantage of the device of EP 501 273 to eliminate without losing their benefits.
  • This object is achieved in that the photographic material after exposure in at least one, preferably in each processing step with the layer side performed on a plurality of rotatable rollers in contact with these rollers being, the rollers at 30 to 300 ° of their circumference in such a way are encased in that in the space between the roller and the casing Processing liquid cannot drain completely, characterized in that the rollers of the racks lie on a straight line that is horizontal encloses an angle of 45 to 90 °.
  • the photographic material is in contact with the rollers in the uncovered Areas led.
  • Preferably at least half of the rollers are in the one described Sheathed way.
  • The is preferably Angle 80 to 90 °.
  • a processing stage comprises in particular 2 to 100 rollers, preferably 5 to 50 Rollers.
  • the space between the roller and the casing is kept small; the distance is in particular 0.5 to 20 mm, preferably 1 to 10 mm.
  • the casing is closed over the end faces of the rollers and has only openings for the roller axes that against the roller axes are sealed.
  • the jackets between two successive rolls of a processing stage are preferably connected to one another, for example by sheet metal have lateral band strips.
  • the supplied liquid remains in the space between the rollers and the Sheathing.
  • the layer side of the photographic material with the roller surface in sufficient Contact is a device part so to the back of the photographic Material arranged that the desired contact is made automatically.
  • This device part can be a baffle, a baffle with knobs on the Surface, a variety of small rolls or a variety of rollers of the type how they touch the layer side, which are attached at the same height as that layer-side rolls or offset to these, these rolls also being encased
  • an x-ray material which is usually a photosensitive silver halide emulsion layer on both sides of the support having.
  • the rack has an incline, e.g. Is operated at 90 ° results for those at the top Liquid supplied at the end of the rack has a direction of flow through a gradient, the Flow direction either the same or opposite to the direction of the photographic material is.
  • At least one roller of a pair of rollers is preferred in an elongated hole so that the rollers touch due to their own weight and yield when the photo material is transported between the pairs of rollers.
  • rollers are provided only on the layer side, these are preferably in one Elongated hole to produce the same effect.
  • Fig. 1 shows a section through a rack according to the invention.
  • Fig. 1 shows a rack of a processing stage, in which the photographic material 1 in Arrow direction is transported between a number of pairs of rollers 2.
  • the rollers are provided with casings 3, the casings of two successive Rolls are interconnected by sheets 4.
  • the resulting Room 5 is made up of walls arranged at the front of the rollers (not shown) and is used to hold a liquid, e.g. a development, Bleach-fix or stabilizer solution.
  • the rack can be horizontal (as shown) be arranged or at any angle to the vertical.
  • the rack can be enclosed in a space indicated by the walls 6 and 7, the if desired, the temperature is controlled so that the process is exactly as specified Temperature expires.
  • the rollers Due to the sheathing, the rollers are always at least partially filled with liquid wetted. In times of non-use, when the processing solutions are not should be removed, the rollers can be rotated with little energy, to prevent the non-wetted roller surface from falling dry.
  • the invention further relates to a method for wet chemical processing of a photographic material, the material in at least one processing step goes through a multiple cascade formed by a multitude of rotatable rollers is, each cascade level is defined by a roller that is 30 to 300 ° of its circumference is encased in such a way that in the space between Do not drain the processing liquid from the roller and jacket completely can, characterized in that the material in contact with the layer side with the rollers that volume is guided in the space between sheathing and roller, which is constantly filled with processing liquid, 0.2 to 5 ml / cm material width is that the material between the cascade levels does not fall into the Treatment liquid dips that at least 50% of the rolls of the processing step only partially immerse in the treatment solution and that the multiple Cascade encloses an angle of 45 to 90 ° to the horizontal.
  • Photographic materials in the device according to the invention and / or after can be processed in the method according to the invention are e.g. Black-and-white film, Black and white paper, color negative film, color reversal film and color photographic Paper.
  • a commercially available photo paper e.g. Agfacolor type 10 is standardized according to the Development process Kodak RA 4 processed by machine.
  • the photo material is guided through six different tanks: Develop 45 sec 38 ° C Tank 1 bleach-fixing 45 sec 38 ° C Tank 2 Stabilize step 1 22.5 sec Tank 3 Level 2 22.5 sec Tank 4 level 3 22.5 sec Tank 5 Level 4 22.5 sec Tank 6 dry
  • the tank volume of tanks 1 and 2 is 20 l.
  • the tank volume of tanks 3 to 6 is 10 l.
  • Stabilization takes place in a 4-stage countercurrent cascade.
  • the bleach-fix bath introduced is diluted to 1/6 for each stabilization level.
  • the bleach-fixing bath content in stage 4 is therefore less than 1/1000 of the concentration in tank 2 in the equilibrium state of the regeneration, ie after a throughput of about 100 m 2 of color paper.
  • the cleanliness of the photographic material i.e. the absence of iron complexes and Silver thiosulfate complexes from the bleach-fix bath are decisive for the durability of the photo material during storage - especially in warm, damp storage.
  • the photo material is developed and fixed in bleach as in Example 1, after which it runs for 45 seconds. vertically from the bottom up a rack according to the invention with 18 pairs of rollers according to FIG. 1, which are only partially immersed in the stabilizing solution. As in Example 1, the regeneration rate is 250 ml / m 2 .
  • the roller pairs are covered by 120 °.
  • the distance from the jacket to the roller surface is 2 mm in each case.
  • the sheathing is arranged in such a way that the liquid volume of the stabilizing solution per cm of material width that cannot run off is 2.7 ml.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Photographic Processing Devices Using Wet Methods (AREA)
EP96117260A 1995-11-08 1996-10-28 Verarbeitungsvorrichtung für fotografische Materialien Expired - Lifetime EP0773476B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19541559 1995-11-08
DE19541559A DE19541559A1 (de) 1995-11-08 1995-11-08 Verarbeitungsvorrichtung für fotografische Materialien

Publications (2)

Publication Number Publication Date
EP0773476A1 EP0773476A1 (de) 1997-05-14
EP0773476B1 true EP0773476B1 (de) 2002-06-12

Family

ID=7776886

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96117260A Expired - Lifetime EP0773476B1 (de) 1995-11-08 1996-10-28 Verarbeitungsvorrichtung für fotografische Materialien

Country Status (4)

Country Link
US (1) US5734946A (ja)
EP (1) EP0773476B1 (ja)
JP (1) JP3376574B2 (ja)
DE (2) DE19541559A1 (ja)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19849566A1 (de) * 1998-03-03 1999-09-09 Fuji Photo Film Co Ltd Bildherstellungsvorrichtung

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2878741A (en) * 1953-10-06 1959-03-24 Messrs Lumoprint Zindler K G Means for moistening the films of photographic film-supports
DE1227776B (de) * 1964-01-18 1966-10-27 Internat Copying Machines Co M Zweibad-Entwicklungsgeraet zur Entwicklung belichteter fotografischer Schichttraeger
US3315583A (en) * 1964-10-15 1967-04-25 Beattie Coleman Inc Photographic processing apparatus
DE1497447A1 (de) * 1965-02-26 1969-07-10 Elbe Kamera Gmbh Transporteinrichtung,insbesondere fuer blattfoermige photographische Schichttraeger in schalenfoermigen Badbehaeltern
GB1261245A (en) * 1969-02-04 1972-01-26 Agfa Gevaert Formerly Gevaert Processing apparatus
DE2031649A1 (de) * 1970-06-26 1971-12-30 Agfa-Gevaert Ag, 5090 Leverkusen Vorrichtung zur Verarbeitung von bandförmigem fotografischen Material
USB714882I5 (ja) * 1970-06-26
DE2615932A1 (de) * 1976-04-10 1977-10-20 Edmund Klein Im durchlaufverfahren arbeitende entwicklungs- und bearbeitungsmaschine fuer fotografisch-chemische negativ- und positivprozesse
DE2633145A1 (de) * 1976-07-23 1978-06-08 Agfa Gevaert Ag Vorrichtung zur nassbehandlung fotografischer schichttraeger
DD207131A3 (de) * 1981-10-28 1984-02-15 Pentacon Dresden Veb Vorrichtung zum nassbehandeln fotografischer schichttraeger
US4429982A (en) * 1982-04-08 1984-02-07 Pluribus Products, Inc. Apparatus and method for processing stabilization photographic paper
DE3535980C1 (de) * 1985-10-09 1986-11-20 Agfa-Gevaert Ag, 5090 Leverkusen Vorrichtung zur Nassbehandlung fotografischer Schichttraeger
US4987438A (en) * 1988-06-27 1991-01-22 Konica Corporation Apparatus for processing light-sensitive material
DE4106546A1 (de) 1991-03-01 1992-09-03 Agfa Gevaert Ag Entwicklungsmaschine fuer fotomaterial
US5347337A (en) * 1993-05-03 1994-09-13 Eastman Kodak Company Vertical and horizontal positioning and coupling of automatic tray processor cells

Also Published As

Publication number Publication date
US5734946A (en) 1998-03-31
DE59609328D1 (de) 2002-07-18
JP3376574B2 (ja) 2003-02-10
DE19541559A1 (de) 1997-05-15
EP0773476A1 (de) 1997-05-14
JPH09146251A (ja) 1997-06-06

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