EP0218170B1 - Vorrichtung zur Nassbehandlung fotografischer Schichtträger - Google Patents

Vorrichtung zur Nassbehandlung fotografischer Schichtträger Download PDF

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Publication number
EP0218170B1
EP0218170B1 EP86113392A EP86113392A EP0218170B1 EP 0218170 B1 EP0218170 B1 EP 0218170B1 EP 86113392 A EP86113392 A EP 86113392A EP 86113392 A EP86113392 A EP 86113392A EP 0218170 B1 EP0218170 B1 EP 0218170B1
Authority
EP
European Patent Office
Prior art keywords
rolls
feed
squeeze
roll
treatment liquid
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
EP86113392A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0218170A3 (en
EP0218170A2 (de
Inventor
Jürgen Dipl.-Ing. Müller
Francois P. Loots
Remi Dr. Vanhorebeek
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 EP0218170A2 publication Critical patent/EP0218170A2/de
Publication of EP0218170A3 publication Critical patent/EP0218170A3/de
Application granted granted Critical
Publication of EP0218170B1 publication Critical patent/EP0218170B1/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
    • 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 for the wet treatment of photographic substrates, in which a substrate is guided between a pair of insertion rollers and a squeeze roller in a trough-like container between the rollers of a pair of feed rollers and wetted with treatment liquid.
  • a similar device is known from DE-OS 32 30175.
  • several pairs of transport rollers are provided which define a transport plane for the layer support, the liquid level being above this transport plane.
  • the layer support is thus drawn through the bath, the rollers only serving as transport rollers and not as rinsing or squeezing rollers. It is also not clear how the relatively small amount of treatment liquid in the device could be constantly renewed or regenerated.
  • the invention is based on the object of designing a device of the type mentioned in such a way that with a small volume of treatment liquid in the device and greatly reduced oxidation possibilities for the treatment liquid, a uniform distribution of the treatment liquid on the wash-up rollers and a constant exchange of the treatment liquid are possible.
  • a set-up and collecting trough for a treatment device and a storage container for the treatment liquid and the lines provided between the two parts are designated by 1.
  • two tubs could also be provided for the treatment device and the storage container.
  • the treatment device 2 and the storage container 3 as well as the lines designed as rigid tubes or elastic hoses are mounted in a known manner, for example set up or suspended or fixed to the tub walls with clamps.
  • the treatment device 2 has three roller pairs 6a, 6b, 7a, 7b, 8a, 8b arranged one behind the other in the transport direction 4 of a layer support 5, of which the first roller pair 6a, 6b is an insertion roller pair, the second roller pair 7a, 7b is a pre-wash roller pair for wetting the layer support 5 and the third pair of rollers 8a, 8b represent a pair of squeeze rollers.
  • the pre-wash roller pair 7a, 7b is arranged at the lowest point, so that the contact plane of the two pre-wash rollers 7a, 7b defining the layer support web forms the lowest region of the layer support web.
  • the respective lower rollers 6a, 7a, 8a are arranged in a trough-like container 9, the bulges 9a, 9b and 9c for the rollers 6a, 7a, 8a and in between inclined surfaces 9d and 9e as guide surfaces for a layer support 5 between the rollers 6a, 6b , 6c.
  • the bulges 9a and 9c for the lower insertion roller 6a and the lower squeeze roller 8a can only be approximately adapted to the shape of the rollers 6a and 8a at a greater distance therefrom.
  • the bulge 9b for the lower feed roller 7a hugs its shape like a cage.
  • the guide surfaces 9d, 9e each run obliquely downwards from the upper, inner end of the bulge 9a or 9c to the upper edge of the bulge 9b.
  • an upper housing part 10 On the tub-like container 9, an upper housing part 10 is placed, which has bulges 10a, 10b and 10c for the rollers 6b, 7b, 8b and between them to the guide surfaces 9d, 9e approximately parallel guide surfaces 10d, 10e.
  • the bulges 10a, 10b, 10c can very closely follow the rollers 6b, 7b, 7c. All bulges 9a, 9b, 9c, 10a, 10b, 10c are open to the layer carrier web.
  • slots 11, 12 are provided on the walls perpendicular to the direction of transport 4 for inserting and dispensing the layer supports 5.
  • a pre-distribution channel 9f or 10f is formed in the apex line of each of the bulges 9b, 10b, which channel extends from the central plane 14 in the transport direction 4 tapered on both sides in the direction of the substrate width, cf. 2.
  • the treatment liquid 13 is pumped into these pre-distribution channels 9f, 10f from the storage container 3 by means of a pump 15 via a main feed line 16, which then branches into two feed lines 16a, 16b.
  • Openings of the feed lines 16a, 16b in the pre-distribution channels 9f, 10f lie in the region of the central plane 14, preferably approximately perpendicular to the layer carrier web.
  • the supply lines could also open into the pre-distribution channels 9f, 10f parallel or inclined to the layer carrier web. It would also be possible to provide the feed lines at one end of the pre-distributor channel, in which case the pre-distributor channels would have to taper from the mouth to their other end.
  • the treatment liquid 13 By pumping the treatment liquid 13 into the pre-distribution channels 9f, 10f, it is initially distributed evenly over the channel length and then correspondingly rinses the pre-wash rollers 7a, 7b from below or from above, so that the pre-wash rollers in turn ensure uniform wetting of the layer support 5 effect across its width. So that the treatment liquid 13 supplied to the layer support 5 and used during its treatment with regard to its composition is easily renewed can be provided on the deepest areas of the bulges 9a, 9c for the other two lower rollers 6a, 8a drainage nozzles, which open into return lines 17a, 17b, which converge into a common line 17.
  • the return line 17 leads into the storage container 3, namely above its normal liquid level.
  • the used treatment liquid flowing back under the pressure of the pump 15 then mixes with the fresh treatment liquid, and when the level drops, regenerated liquid can be supplied via a further inlet 3a.
  • the control of the regenerative feed can be controlled by level sensors 18a, 18b.
  • a heater 19 can also be provided in the storage container 3, which can be controlled by thermostats which can be arranged both in the container 3 and in the lines 16 or in the trough-shaped container 9.
  • the development is not carried out as a mere rinsing process, but that the substrate 5 is moved through a dipping bath for a small part of its way, with the rotating transport rollers 7a, 7b ensuring uniform washing and wetting is additionally promoted.
  • FIG. 1 this is achieved in that so much treatment liquid is pumped in that liquid accumulates in the tub-like container 9 up to a certain level.
  • the upper edge 9g of the container 9 is higher than the lower edges of the upper bulge 10b for the upper wash-on roller 7b, so that the latter, when the container 9 is filled, simply because of its position, even in the liquid present in the tub-like container 9 immersed.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Photographic Processing Devices Using Wet Methods (AREA)
EP86113392A 1985-10-09 1986-09-29 Vorrichtung zur Nassbehandlung fotografischer Schichtträger Expired EP0218170B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3535980A DE3535980C1 (de) 1985-10-09 1985-10-09 Vorrichtung zur Nassbehandlung fotografischer Schichttraeger
DE3535980 1985-10-09

Publications (3)

Publication Number Publication Date
EP0218170A2 EP0218170A2 (de) 1987-04-15
EP0218170A3 EP0218170A3 (en) 1987-08-19
EP0218170B1 true EP0218170B1 (de) 1989-08-30

Family

ID=6283125

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86113392A Expired EP0218170B1 (de) 1985-10-09 1986-09-29 Vorrichtung zur Nassbehandlung fotografischer Schichtträger

Country Status (5)

Country Link
US (1) US4688917A (enrdf_load_stackoverflow)
EP (1) EP0218170B1 (enrdf_load_stackoverflow)
JP (1) JPS6289052A (enrdf_load_stackoverflow)
DE (1) DE3535980C1 (enrdf_load_stackoverflow)
DK (1) DK164675C (enrdf_load_stackoverflow)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3609526C1 (de) * 1986-03-21 1987-06-25 Agfa Gevaert Ag Geraet zur Entwicklung von Blattfilmen
DE3684154D1 (de) * 1986-12-19 1992-04-09 Agfa Gevaert Nv Verfahren und vorrichtung zur photographischen entwicklung.
US4841321A (en) * 1987-05-07 1989-06-20 Fuji Photo Film Co., Ltd. Circulating liquid flow detecting apparatus in a machine for automatically processing light-sensitive material
DE3807837A1 (de) * 1988-03-10 1989-09-21 Agfa Gevaert Ag Nassbehandlungsvorrichtung fuer fotografische schichttraeger
JPH02240651A (ja) * 1989-03-14 1990-09-25 Fuji Photo Film Co Ltd ハロゲン化銀感光材料の処理方法
DE3813360C1 (enrdf_load_stackoverflow) * 1988-04-21 1989-10-26 Agfa-Gevaert Ag, 5090 Leverkusen, De
JP2729809B2 (ja) * 1988-08-31 1998-03-18 コニカ株式会社 ハロゲン化銀カラー写真感光材料用自動現像機
US4994840A (en) * 1990-03-16 1991-02-19 Eastman Kodak Company Apparatus for processing photosensitive material
GB9114090D0 (en) * 1991-06-29 1991-08-14 Kodak Ltd Photographic processing apparatus
US5270762A (en) * 1992-03-02 1993-12-14 Eastman Kodak Company Slot impingement for a photographic processing apparatus
US5317359A (en) * 1992-10-02 1994-05-31 Eastman Kodak Company Apparatus for processing photosensitive material
US5354379A (en) * 1993-02-08 1994-10-11 Minnesota Mining And Manufacturing Company Apparatus for applying a protective coating to a film strip
US5452043A (en) * 1993-02-19 1995-09-19 Eastman Kodak Company Rack and a tank for a photographic low volume thin tank insert for a rack and a tank photographic processing apparatus
GB2292816B (en) * 1994-08-27 1998-03-11 Kodak Ltd Improvements in or relating to photographic processing
GB2292817B (en) * 1994-08-27 1998-03-11 Kodak Ltd Improvements in or relating to photographic processing
JP2793966B2 (ja) * 1994-09-28 1998-09-03 株式会社平河工業社 写真処理装置用部品及びそれを用いた写真処理装置
DE19541559A1 (de) * 1995-11-08 1997-05-15 Agfa Gevaert Ag Verarbeitungsvorrichtung für fotografische Materialien
US5920742A (en) * 1997-12-22 1999-07-06 Eastman Kodak Company Nozzle assembly and a processing tank and method for processing photosensitive material using said nozzle assembly
GB0026948D0 (en) * 2000-11-03 2000-12-20 Eastman Kodak Co Processing photographic material

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3561400A (en) * 1968-07-23 1971-02-09 Stromberg Datagraphix Inc Developer apparatus
GB1261245A (en) * 1969-02-04 1972-01-26 Agfa Gevaert Formerly Gevaert Processing apparatus
US3662660A (en) * 1970-08-05 1972-05-16 Ronald P Layne Apparatus for processing sensitized material
BE795122A (nl) * 1972-02-21 1973-08-08 Agfa Gevaert Nv Behandelingsapparaat voor fotografisch materiaal
DE2623702C3 (de) * 1976-05-26 1980-08-07 Agfa-Gevaert Ag, 5090 Leverkusen Entwicklungsvorrichtung für fotografische Schichtträger
DE2626447A1 (de) * 1976-06-12 1977-12-22 Agfa Gevaert Ag Entwicklungsvorrichtung fuer fotografische schichttraeger
DE2731045A1 (de) * 1977-07-08 1979-01-25 Agfa Gevaert Ag Vorrichtung zur nassbehandlung fotografischer schichttraeger
DD207131A3 (de) * 1981-10-28 1984-02-15 Pentacon Dresden Veb Vorrichtung zum nassbehandeln fotografischer schichttraeger

Also Published As

Publication number Publication date
US4688917A (en) 1987-08-25
DK480386A (da) 1987-04-10
JPH0157335B2 (enrdf_load_stackoverflow) 1989-12-05
EP0218170A3 (en) 1987-08-19
EP0218170A2 (de) 1987-04-15
JPS6289052A (ja) 1987-04-23
DE3535980C1 (de) 1986-11-20
DK480386D0 (da) 1986-10-08
DK164675C (da) 1992-12-14
DK164675B (da) 1992-07-27

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