EP0039876B1 - Vorrichtung zur Nassbehandlung fotografischer Schichtträger - Google Patents

Vorrichtung zur Nassbehandlung fotografischer Schichtträger Download PDF

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Publication number
EP0039876B1
EP0039876B1 EP81103366A EP81103366A EP0039876B1 EP 0039876 B1 EP0039876 B1 EP 0039876B1 EP 81103366 A EP81103366 A EP 81103366A EP 81103366 A EP81103366 A EP 81103366A EP 0039876 B1 EP0039876 B1 EP 0039876B1
Authority
EP
European Patent Office
Prior art keywords
rollers
chamber
roller
fluid
treatment
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
EP81103366A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0039876A1 (de
Inventor
Remi Dr. Vanhorebeek
Erwin Geyken
Peter Mayer
Helmut Schausberger
Rudolf Brunner
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
Priority to AT81103366T priority Critical patent/ATE5281T1/de
Publication of EP0039876A1 publication Critical patent/EP0039876A1/de
Application granted granted Critical
Publication of EP0039876B1 publication Critical patent/EP0039876B1/de
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
    • G03D5/00—Liquid processing apparatus in which no immersion is effected; Washing apparatus in which no immersion is effected
    • G03D5/04—Liquid processing apparatus in which no immersion is effected; Washing apparatus in which no immersion is effected using liquid sprays

Definitions

  • the invention relates to a device for the wet treatment of photographic substrates, in particular sheet films, with horizontally traversed treatment chambers, each with an upper and a lower boundary wall, on the inlet and outlet sides of which a pair of transport rollers is arranged and into which a line for treatment liquid opens.
  • the treatment chambers are generally designed as pressure chambers into which the treatment liquid is introduced through small openings with a high flow rate.
  • the liquid build-up between the boundary surfaces will collapse with only slight deviations in the pump power, so that the layer support is only unevenly loaded with liquid.
  • a device has also become known (DE-A-2 731 045), in which the treatment chamber is divided into a main chamber and two secondary chambers receiving the pairs of transport rollers by means of partition walls and the partition walls have shaped pieces which cooperate with the pairs of transport rollers for sealing the main chamber.
  • a liquid bath is thus formed in the main chamber, the level of which is above the layer support level.
  • such a device has proven to be complicated in construction.
  • due to the fact that the treatment liquid is fed in from the bottom there is a different liquid flow with respect to the two layer support surfaces, which can result in uneven development results, particularly in the case of X-ray films.
  • the object of the invention is therefore to develop a device of the type mentioned in the introduction such that a better development result can be achieved with a simpler construction.
  • the invention achieves a construction of the treatment chamber which is simple in terms of production engineering and can be implemented as a plastic injection-molded part, with both sides of the layer carrier being uniformly wetted by the favorable liquid supply.
  • a chamber made of V4A stainless steel is of course also possible, which ensures high dimensional stability. Due to the simple elements of the chamber structure and the lateral liquid supply, the treatment chamber itself can have a relatively small volume, so that the holding volume of a holding container supplying the treatment chamber can be less than 1.25 liters. This means that a circulation pump with lower output can also be used.
  • Fig. 1 denotes a container in which support walls 2 and 2 'are inserted.
  • the figure essentially shows the carrier wall 2 arranged on one side in relation to the film running direction and lying in the background in the figure, whereas only a section of the carrier wall 2 'arranged on the other side is shown.
  • a first pair of transport rollers 3 and 4 is mounted on the entry side of the treatment station and a second pair of transport rollers 5 and 6 on the exit side of the station.
  • An upper boundary wall 7 is arranged between the upper rolls 3 and 5 of the two pairs of rolls, which is also attached between the support walls 2 and 2 '.
  • the upper boundary wall has an inclination with respect to the film running direction 8. This oblique course of the upper boundary wall has the sense that any air introduced into the chamber can escape in a simple manner, so that the risk of oxidation, particularly in the developer bath, is largely avoided.
  • a lower boundary wall 9 is arranged between the support walls 2 and 2 ', which has an approximately undulating cross-sectional shape. More precisely, a narrow elevation 9a is provided on the lower boundary wall behind the inlet roller pair 3 and 4, which is followed by a depression 9b which extends essentially over the chamber length. The end 9c of the lower boundary wall lying in front of the pair of exit rollers 5 and 6 has an upward tendency and is directed towards the upper part of the lower exit roller 6. With a boundary wall 9 shaped in this way it is achieved that the incoming film is raised by the elevation 9a and passed on essentially horizontally. The recess 9b is intended to prevent the film from dragging along the lower boundary wall. The rising end 9c in turn serves to lift the film leading edge and guide it into the nip of the exit roller pair 5 and 6.
  • baffle lips 11 and 12 which extend over the entire length of the rollers.
  • the baffle lip 11 facing the inlet side touches the lower roller 4 and the the lower roller 6 directed towards the exit side.
  • the treatment chamber is delimited at the end by two mold walls 10, of which only one mold wall arranged in front of the support wall 2 is shown in the drawing.
  • These mold walls 10 terminate on the one hand with the upper and lower boundary walls 7 and 9 or the baffle lips 11 and 12.
  • the sides facing the roller pairs have contours which are of the same shape as the roller surfaces in the region of the roller contact. This means that the edges of the mold walls 10 in this area maintain a distance of approximately 0.5 mm from the roller surfaces and extend almost to the line of contact of the rollers.
  • An inlet opening 14 is formed in the carrier wall 2 and is connected to a pipeline 15 running outside the chamber 13.
  • the pipeline 15 is inserted into a pipe socket 16 attached to the tank bottom 1, which is connected via a line 17 to an outlet opening 18 extending from the tank bottom 1.
  • a circulation pump 19 is provided in line 17.
  • the circulation pump 19 now sucks the liquid from the container 1 through the outlet opening 18 and leads it via the line 17, the pipe socket 16 leading through the container bottom, the pipe 15 to the inlet opening 14 in the carrier wall 2. This first becomes the chamber 13 filled.
  • An outlet opening (not shown) is provided on the opposite carrier wall 2 ', through which the excess treatment liquid can flow back into the container 1. This ensures that, due to the very small chamber volume, a relatively high flow velocity is built up transversely to the transport direction 8 of the layer support.
  • the small chamber volume also means that a container volume of 1.25 liters is sufficient, even with a chamber size for substrate widths of 50 or 60 cm. This also has the consequence that the circulation pump 19 need only be of low power.
  • FIG. 2 shows an alternative embodiment, the same parts being provided with the same reference numerals.
  • the lower boundary wall 9 with its damming lips 11 and 12
  • three further rollers are provided which touch one another and form the lower boundary.
  • a first roller 20 thereof contacts the lower roller 4 of the pair of inlet rollers and a second roller 21 contacts the lower roller 6 of the pair of outlet rollers.
  • the roller 22 contacting the two rollers is arranged between the rollers 20 and 21. This also results in a secure seal for the liquid in the chamber 13 '.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Photographic Processing Devices Using Wet Methods (AREA)
  • Emulsifying, Dispersing, Foam-Producing Or Wetting Agents (AREA)
  • Coating Apparatus (AREA)
  • Photographic Developing Apparatuses (AREA)
EP81103366A 1980-05-10 1981-05-05 Vorrichtung zur Nassbehandlung fotografischer Schichtträger Expired EP0039876B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT81103366T ATE5281T1 (de) 1980-05-10 1981-05-05 Vorrichtung zur nassbehandlung fotografischer schichttraeger.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3017946A DE3017946C2 (de) 1980-05-10 1980-05-10 Vorrichtung zur Naßbehandlung fotografischer Schichttträger
DE3017946 1980-05-10

Publications (2)

Publication Number Publication Date
EP0039876A1 EP0039876A1 (de) 1981-11-18
EP0039876B1 true EP0039876B1 (de) 1983-11-09

Family

ID=6102066

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81103366A Expired EP0039876B1 (de) 1980-05-10 1981-05-05 Vorrichtung zur Nassbehandlung fotografischer Schichtträger

Country Status (6)

Country Link
US (1) US4327988A (ja)
EP (1) EP0039876B1 (ja)
JP (1) JPS5924409B2 (ja)
AT (1) ATE5281T1 (ja)
DE (1) DE3017946C2 (ja)
DK (1) DK205581A (ja)

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3213416C2 (de) * 1982-04-10 1984-03-22 Staude, geb. Bartels, Eva, 6366 Wölfersheim Vorrichtung zum Entwickeln von Mikrofilmen
DE3364266D1 (en) * 1982-10-05 1986-07-31 Ciba Geigy Ag Device for the wet treatment of photosensitive sheets
DE3347354A1 (de) * 1983-12-28 1985-07-11 Maschinenfabrik Gehring Gmbh & Co Kg, 7302 Ostfildern Werkzeugwechseleinrichtung fuer honmaschinen
JPS60178017U (ja) * 1984-05-07 1985-11-26 崔　弘寛 道路用安全標識板
JPS6158212U (ja) * 1984-09-14 1986-04-19
DE3437329A1 (de) * 1984-10-11 1986-04-24 Hoechst Ag, 6230 Frankfurt Vorrichtung zum behandeln von druckplatten mit einer fluessigkeit
JPS6168113U (ja) * 1984-10-11 1986-05-10
US4736221A (en) * 1985-10-18 1988-04-05 Fuji Photo Film Co., Ltd. Method and device for processing photographic film using atomized liquid processing agents
JPS62133711U (ja) * 1986-02-12 1987-08-22
JP2807826B2 (ja) * 1988-06-27 1998-10-08 コニカ株式会社 感光材料処理装置
JP2739357B2 (ja) * 1988-11-09 1998-04-15 コニカ株式会社 ハロゲン化銀写真感光材料用自動現像機
JPH02109353U (ja) * 1989-02-16 1990-08-31
JPH02119248U (ja) * 1989-03-06 1990-09-26
JPH082673Y2 (ja) * 1989-05-31 1996-01-29 株式会社フラット フイルム現像装置
US4989028A (en) * 1989-10-25 1991-01-29 Eastman Kodak Company Apparatus for processing light sensitive material
GB9025598D0 (en) * 1990-11-24 1991-01-09 Kodak Ltd Photographic processing apparatus
JPH0481148U (ja) * 1990-11-27 1992-07-15
US5357307A (en) * 1992-11-25 1994-10-18 Eastman Kodak Company Apparatus for processing photosensitive material
US5411840A (en) * 1992-12-21 1995-05-02 Eastman Kodak Company Low volume processing for establishing boundary conditions to control developer diffusion in color photographic elements
US5313242A (en) * 1993-04-27 1994-05-17 Eastman Kodak Company Thru-wall web processing apparatus
US5353088A (en) * 1993-05-03 1994-10-04 Eastman Kodak Company Automatic tray processor
US5400106A (en) * 1993-05-03 1995-03-21 Eastman Kodak Company Automatic tray processor
DE69420123T2 (de) * 1994-03-25 2000-04-06 Agfa-Gevaert N.V. Vorrichtung und Verfahren zur Herstellung einer lithographischen Offset-Druckform, mittels Silbersalzdiffusionsübertragungsverfahrens

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3169887A (en) * 1961-05-04 1965-02-16 Eastman Kodak Co Electrophotographic developing apparatus
DE1910236A1 (de) * 1969-02-28 1970-09-17 Olympia Werke Ag Vorrichtung zum Benetzen eines elektrostatisch aufgeladenen und belichteten Aufzeichnungstraegers
US3774521A (en) * 1969-12-19 1973-11-27 Du Pont Photographic developing apparatus
BE793369A (fr) * 1971-12-28 1973-06-27 Kalle Ag Procede et dispositif pour developper une matiere photosensible
US3988756A (en) * 1974-01-29 1976-10-26 Agfa-Gevaert, A.G. Apparatus for processing webs of photographic material
US4023190A (en) * 1975-06-02 1977-05-10 Sybron Corporation Film processor
DE2545487C3 (de) * 1975-10-10 1979-01-18 Agfa-Gevaert Ag, 5090 Leverkusen Durchlauf-Entwicklungsmaschine
US4101919A (en) * 1976-08-02 1978-07-18 Quantor Corporation Film processing apparatus
JPS5350438U (ja) * 1976-10-01 1978-04-28
DE2731045A1 (de) * 1977-07-08 1979-01-25 Agfa Gevaert Ag Vorrichtung zur nassbehandlung fotografischer schichttraeger

Also Published As

Publication number Publication date
US4327988A (en) 1982-05-04
JPS5924409B2 (ja) 1984-06-09
EP0039876A1 (de) 1981-11-18
DE3017946A1 (de) 1981-11-12
JPS574045A (en) 1982-01-09
DK205581A (da) 1981-11-11
DE3017946C2 (de) 1986-06-12
ATE5281T1 (de) 1983-11-15

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