EP0360968A2 - Dispositif de développement d'images sur une bande de papier photographique - Google Patents

Dispositif de développement d'images sur une bande de papier photographique Download PDF

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Publication number
EP0360968A2
EP0360968A2 EP89107118A EP89107118A EP0360968A2 EP 0360968 A2 EP0360968 A2 EP 0360968A2 EP 89107118 A EP89107118 A EP 89107118A EP 89107118 A EP89107118 A EP 89107118A EP 0360968 A2 EP0360968 A2 EP 0360968A2
Authority
EP
European Patent Office
Prior art keywords
developing
paper web
photo paper
changed
speed
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.)
Granted
Application number
EP89107118A
Other languages
German (de)
English (en)
Other versions
EP0360968A3 (en
EP0360968B1 (fr
Inventor
Herman Schwithal
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6364063&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0360968(A2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Agfa Gevaert AG filed Critical Agfa Gevaert AG
Priority to AT89107118T priority Critical patent/ATE101288T1/de
Publication of EP0360968A2 publication Critical patent/EP0360968A2/fr
Publication of EP0360968A3 publication Critical patent/EP0360968A3/de
Application granted granted Critical
Publication of EP0360968B1 publication Critical patent/EP0360968B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • 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
    • G03D3/135—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 between chains or belts, or with a leading strip
    • G03D3/137—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 between chains or belts, or with a leading strip provided with transport speed regulation

Definitions

  • the invention relates to a method for developing paper images exposed on a photo paper web with a device for developing paper images which is continuously traversed by the photo paper web to be developed.
  • each of the paper images exposed on the photographic paper web to be developed must have a certain, constant dwell time, for example 45 seconds.
  • the developing device and the developing process are involved in the entire manufacturing and processing process, particularly in the case of a more industrial production of photo paper images in large companies in the photo production industry.
  • this includes processing the negatives, exposing the photo paper webs and cutting the finished paper photos right through to their packaging.
  • the exposure device for exposing the photographic paper is the most expensive device in the entire work process, which could be driven at a very high work pace, but which would have to be throttled continuously because of the subsequent development process if the work was connected. This would not occupy this expensive machine.
  • the work performed by the work stations preceding and following the development process changes from time to time.
  • the exposure device printer
  • the photo paper web to be exposed can only be transported per exposure process by the format length of a paper image, i.e. per exposure process by a shorter distance than before.
  • the duration of an exposure process usually remains constant. The consequence of this is that the transport speed of the photo paper web has to decrease with a smaller format of the photo paper images. This also changes the workload of this workstation.
  • the invention is therefore based on the object of improving the development process in such a way that it fits more profitably into the paper photo production and processing process (finishing).
  • This object is achieved in that the throughput speed of the photo paper web in the developing device is always adapted to the speed conditions, in particular also to a higher working speed, upstream or downstream workstations.
  • the entire work process is advantageously no longer dictated by the development process as in the past, but in the process according to the invention, the development speed of the work process depends on the other work stations, so that they are better utilized and thus a higher work performance and profitability are achieved .
  • the exposure device and the development device were connected to one another, but this connection only took place via an intermediate store.
  • the exposure device had to adapt to the operating speed of the developing device in an unprofitable manner by filling the memory only to the extent that the developing device could empty it.
  • the entire work process had to be brought to a complete standstill temporarily in order to be able to adapt to the new conditions.
  • the development speed of the developing device depends on the other workstations, so that a direct connection between the exposure device and the developing device is now also advantageously possible, in which the exposure device, when fully utilized, determines the working speed. Only when the method according to the invention is further developed does the development process adapt smoothly to the changed speed requirement.
  • the developing device can also be linked directly to subsequent work stations.
  • a certain constant residence time for example 45 seconds, must still be available for each of the paper images exposed on the photo paper web to be developed. This is ensured as long as the transport speed of the photo paper web through the developing device is constant, since the path of travel of the photo paper web through the developing device is also constant and the desired dwell time is adapted to the desired residence time divided by the speed.
  • this problem is solved in that when the transport speed of the photo paper web changes, the path of travel of the photo paper through the developing device is also continuously changed in proportion to it.
  • the photo paper web to be exposed is deflected and guided in a meandering manner via deflection rollers. Meandering in order to achieve a sufficiently large throughput path for relatively high transport speeds with the smallest possible space requirement.
  • Some of these deflection rollers are detachably arranged in conventional development machines. These deflection rollers can thus be used to change the throughput path into very specific, predetermined ones Positions are implemented.
  • these convertible deflection rollers are mounted on plug-in strips, on which the deflection rollers can be repositioned and re-screwed.
  • a change in the speeds of upstream or downstream workstations is also easily absorbed in the method according to the invention.
  • the throughput path is changed by changing the deflection points for the photo paper web in the developing device, through which the throughput path is predetermined, such that the length of the section of the photographic paper web which is guided in the developing device is proportional to the changed one Transport speed is also changed.
  • deflection rollers or the like are continuously changed in their arrangement until the throughput path is again adapted to the changed transport speed of the photo paper web, so that the dwell time for the individual exposed paper image in the developing device remains constant.
  • a further development of the method according to the invention provides for the throughput path to be changed slowly to the proportional value to be achieved. This additionally ensures that the tension of the paper web does not change too quickly, so that paper tear or paper sagging is avoided.
  • the passage is preferably changed automatically by means of suitable control devices, so that workers are relieved and an optimal adaptation of the passage is achieved.
  • a device for developing paper images, in particular for carrying out the method according to one of the preceding claims, for which independent protection is also claimed, with a housing in the deflection rollers for deflecting and guiding the photo paper web to be developed with horizontal axes at intervals from one another and on At least two different height levels are arranged, so that the photo paper web in the housing runs in loops in a meandering shape along the passage path specified by the deflection rollers and with one or more drive units, preferably an input drive unit upstream of the deflection rollers on the paper path and an output drive unit downstream of the deflection rollers, with which the Input or output speed of the photo paper web is specified, characterized in that at least one of the deflection rollers is arranged so that its distance to the other ren pulley level is changeable, and that a control drive unit is provided for driving the displaceable deflection roller.
  • the device according to the invention advantageously has a displaceably arranged deflection roller, which can therefore be continuously changed in position, this change in position can be carried out with a drive unit, which makes work easier and also has the advantage that the development device does not have to be opened to change the throughput path .
  • the throughput adjustment is advantageously carried out automatically, specifically by a registration device registering a speed parameter, preferably an input speed parameter, for actuating and actuating the control drive unit in accordance with the registered parameter. It is preferably provided that the output drive unit can also be controlled by the registration device, in particular so that the correct paper tension of the photo paper web is established.
  • the registration device registers speed parameters of both drive units and the control drive unit then controls and actuates if there is a speed difference between the two drive units.
  • a change in speed is predetermined by the printer connected upstream, when using the method according to the invention, so that the input speed of the photo paper in the developing device changes accordingly, while the output speed is initially maintained until the deflection rollers have moved to the final position.
  • a speed difference can thus be a suitable speed parameter for controlling the control drive be considered.
  • the displaceable deflection roller can be displaced continuously, preferably on a sliding guide. This has the advantage that the throughput path can also be precisely adapted to slight changes in speed. It would also be conceivable not to move continuously, for example on grid rails or the like.
  • drives known per se such as e.g. can be used with chains, spindles or the like.
  • a plurality of deflection rollers of the same height level can be moved and are coupled to one another in terms of drive.
  • the drive coupling improves controllability and allows a single drive unit to suffice.
  • a next development of the invention, for which independent protection is also claimed, is characterized in that the deflecting rollers are arranged in only two height levels, that all deflecting rollers of one of the height levels are coupled with one another and that a displacement of these rollers extends beyond the other height level the other pulleys is possible.
  • the deflection rollers are arranged in two groups, between which the photo paper web runs back and forth in meandering fashion, and that by changing the distance between these two roller groups to one another, the path of travel of the photo paper web is very clean and precise with the greatest possible scope for change can be changed.
  • this design has the advantage that when the developing device is started up anew, in front of which an initial section of a new photo paper web is first inserted, this insertion can take place while the displaceable rollers are pushed beyond the height level of the other rollers, so that the initial section between them Rolls can be shot through and when the movable guide rollers return to their original level, a meandering course automatically results over the guide rollers of the photo paper web.
  • the development device can thus be restarted with very little loss of time, for example after maintenance.
  • This displacement of the displaceable deflection rollers beyond the height level of the other deflection rollers is particularly simple in a further development of the invention, which is characterized in that the deflection rollers of one height level are mechanically connected to each other to form a comb-like roller unit and that the two roller units, if provided to the same height level moved, comb together.
  • the displaceable deflection rollers are preferably those which belong to the lower level.
  • the paper images are exposed on a photo paper web 1, which runs in loops in a meandering manner over deflection rollers 2a, 2b through the developing device.
  • the order Steering rollers 2a, 2b are arranged in two groups at two height levels, the deflecting rollers 2a forming the lower deflecting roller group and the deflecting rollers 2b forming the upper deflecting roller group.
  • the photo paper web 1 is transported by means of an input drive unit 3 and an output drive unit 4 through the developing device over the deflection rollers 2a, 2b.
  • the pulleys of the lower pulley group and the upper pulley group are mechanically connected to each other to form roller units.
  • the lower roller unit can be moved up and down along slide guides 5.
  • a control drive unit 6 is provided which is drivingly coupled to the lower roller unit via chains 7.
  • connecting elements 8 are provided.
  • the control drive unit 6 is controlled and actuated by a registration device 9.
  • This registration device 9 has sensors 10, which register the speed parameters of the input drive unit 3 and the output drive unit 4.
  • the control drive unit 6 can be activated, for example, if the speed parameter of the input drive unit 3 changes or if there is a difference in the speed parameters of the input and output drive unit.
  • the slide guides 5 are so long that they protrude above the level of the upper guide rollers 2b, so that the lower guide rollers 2a can be raised to above the level of the upper guide rollers 2b.
  • This uppermost position of the lower guide rollers 2a is indicated by dashed lines with the reference numbers 2a 'for some guide rollers 2a.
  • FIG. 2 shows a top view, partly in section, of the device according to FIG. 1.
  • the same components are identified by the same reference numbers as in FIG. 1.
  • roller unit 2 shows in particular the design of the two roller units with the deflection rollers 2a and 2b.
  • the roller units are comb-like, so that the two roller units mesh with one another when they have reached the same level, and the lower roller unit can be raised above the level of the upper roller unit without mutual hindrance.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Photographic Developing Apparatuses (AREA)
  • Photographic Processing Devices Using Wet Methods (AREA)
  • Inspection Of Paper Currency And Valuable Securities (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)
EP89107118A 1988-09-30 1989-04-20 Dispositif de développement d'images sur une bande de papier photographique Expired - Lifetime EP0360968B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89107118T ATE101288T1 (de) 1988-09-30 1989-04-20 Vorrichtung zum entwickeln von auf einer fotopapierbahn belichteten papierbildern.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3833216A DE3833216A1 (de) 1988-09-30 1988-09-30 Verfahren und vorrichtung zum entwickeln von auf einer fotopapierbahn belichteten papierbildern
DE3833216 1988-09-30

Publications (3)

Publication Number Publication Date
EP0360968A2 true EP0360968A2 (fr) 1990-04-04
EP0360968A3 EP0360968A3 (en) 1990-11-28
EP0360968B1 EP0360968B1 (fr) 1994-02-02

Family

ID=6364063

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89107118A Expired - Lifetime EP0360968B1 (fr) 1988-09-30 1989-04-20 Dispositif de développement d'images sur une bande de papier photographique

Country Status (6)

Country Link
EP (1) EP0360968B1 (fr)
AT (1) ATE101288T1 (fr)
DE (2) DE3833216A1 (fr)
DK (1) DK482089A (fr)
ES (1) ES2048228T3 (fr)
NO (1) NO893878L (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0602439A2 (fr) * 1992-12-14 1994-06-22 G.P.E. S.r.l. Unité d'adaptation de l'avancement d'un matériau photographique dans un système de développement en continue
US6894102B2 (en) 2002-05-20 2005-05-17 General Electric Syndiotactic polystyrene blends

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2998175A (en) * 1956-07-05 1961-08-29 Charles H Topping Automatic developing system
US3087405A (en) * 1959-12-21 1963-04-30 Sperry Rand Corp Film processing apparatus
US3412668A (en) * 1966-02-21 1968-11-26 Chicago Aerial Ind Inc Strip transport system
SU593181A1 (ru) * 1976-08-09 1978-02-28 Предприятие П/Я Р-6947 Устройство дл обработки рулонных фотоматериалов
SU1144086A1 (ru) * 1983-07-21 1985-03-07 Предприятие П/Я Р-6947 Устройство дл измерени времени химико-фотографической обработки кинофотоматериалов в про вочных машинах
DE3623084A1 (de) * 1985-07-16 1987-01-29 Gregoris Photo Equip Automatische fotoentwicklungsanlage

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE863452C (de) * 1951-04-04 1953-01-19 Arnold & Richter Kg Geraet zum Entwickeln von Filmen
US2928329A (en) * 1956-11-09 1960-03-15 David R Limbach Photographic developing machine
DE1111940B (de) * 1957-01-29 1961-07-27 Arnold & Richter Kg Filmtransport-Einrichtung
DE1497387B1 (de) * 1966-02-16 1969-10-16 Arnold & Richter Kg Vorlauf-Magazin fuer Filmbearbeitungs-Maschinen
GB1307524A (en) * 1969-03-21 1973-02-21 Kodak Ltd Web or strip material handling apparatus
US4215827A (en) * 1979-06-25 1980-08-05 Roberts Marvin A Film loop apparatus
JPS5639542A (en) * 1979-09-10 1981-04-15 Dainippon Screen Mfg Co Ltd Stationary developing method with automatic developing apparatus
DE3014784C2 (de) * 1980-04-17 1984-12-06 Staude, geb. Bartels, Eva, 6366 Wölfersheim Vorrichtung zum Entwickeln von Mikrofilmen

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2998175A (en) * 1956-07-05 1961-08-29 Charles H Topping Automatic developing system
US3087405A (en) * 1959-12-21 1963-04-30 Sperry Rand Corp Film processing apparatus
US3412668A (en) * 1966-02-21 1968-11-26 Chicago Aerial Ind Inc Strip transport system
SU593181A1 (ru) * 1976-08-09 1978-02-28 Предприятие П/Я Р-6947 Устройство дл обработки рулонных фотоматериалов
SU1144086A1 (ru) * 1983-07-21 1985-03-07 Предприятие П/Я Р-6947 Устройство дл измерени времени химико-фотографической обработки кинофотоматериалов в про вочных машинах
DE3623084A1 (de) * 1985-07-16 1987-01-29 Gregoris Photo Equip Automatische fotoentwicklungsanlage

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
SOVIET INVENTIONS ILLUSTRATED, Woche 8537, 24. Oktober 1985, Zusammenfassung Nr. 85/229214/37, Derwent Publications Ltd, London, GB; & SU-A-1 144 086 (07-03-1985) *
SOVIET INVENTIONS ILLUSTRATED, Woche B06, 21. März 1979, Zusammenfassung Nr. B2129B/06, Derwent Publications Ltd, London, GB; & SU-A1-593 181 (28-02-1978) *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0602439A2 (fr) * 1992-12-14 1994-06-22 G.P.E. S.r.l. Unité d'adaptation de l'avancement d'un matériau photographique dans un système de développement en continue
EP0602439A3 (fr) * 1992-12-14 1995-03-08 Gpe Srl Unité d'adaptation de l'avancement d'un matériau photographique dans un système de développement en continue.
US6894102B2 (en) 2002-05-20 2005-05-17 General Electric Syndiotactic polystyrene blends

Also Published As

Publication number Publication date
EP0360968A3 (en) 1990-11-28
NO893878D0 (no) 1989-09-29
ES2048228T3 (es) 1994-03-16
DE58906882D1 (de) 1994-03-17
DK482089A (da) 1990-03-31
DK482089D0 (da) 1989-09-29
ATE101288T1 (de) 1994-02-15
NO893878L (no) 1990-04-02
DE3833216A1 (de) 1990-04-05
EP0360968B1 (fr) 1994-02-02

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