EP0592895A1 - Dispositif de développement des matériaux photographiques à l'halogénure d'argent - Google Patents

Dispositif de développement des matériaux photographiques à l'halogénure d'argent Download PDF

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Publication number
EP0592895A1
EP0592895A1 EP93115897A EP93115897A EP0592895A1 EP 0592895 A1 EP0592895 A1 EP 0592895A1 EP 93115897 A EP93115897 A EP 93115897A EP 93115897 A EP93115897 A EP 93115897A EP 0592895 A1 EP0592895 A1 EP 0592895A1
Authority
EP
European Patent Office
Prior art keywords
photographic material
photographic
roller
processing
transport 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
EP93115897A
Other languages
German (de)
English (en)
Other versions
EP0592895B1 (fr
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 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 EP0592895A1 publication Critical patent/EP0592895A1/fr
Application granted granted Critical
Publication of EP0592895B1 publication Critical patent/EP0592895B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03DAPPARATUS FOR PROCESSING EXPOSED PHOTOGRAPHIC MATERIALS; ACCESSORIES THEREFOR
    • G03D3/00Liquid processing apparatus involving immersion; Washing apparatus involving immersion
    • G03D3/08Liquid processing apparatus involving immersion; Washing apparatus involving immersion having progressive mechanical movement of exposed material
    • G03D3/13Liquid 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
    • G03D3/132Liquid 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 an improved device for processing silver halide photographic material, with which a further reduction in processing time or, with unchanged processing time, increased processing security is possible.
  • RA 4 process Commercial color papers based on high chloride silver halide emulsions are processed according to a process called "RA 4 process", which is characterized by a development time of only 45 seconds at 35 ° C.
  • the yellow couplers contained in the commercially available materials are distinguished by a relatively slow coupling kinetics, so that the 45 seconds for producing the yellow partial image are completely exhausted, especially since the layer forming the yellow dye is usually the lowest layer of the material. If the activity of the developer decreases due to prolonged use or insufficient regeneration, yellow dye formation is no longer sufficient.
  • rollers can preferably be used, which do not necessarily all have to have the same direction of rotation. So that the photographic material does not evade the rollers according to the invention when the transport tension decreases and there is no longer any surface contact with the photographic material, the material is preferably held in position by counter-pressure plates which are located on the other side of the photographic material opposite the rollers, the guide of the photo material can be supported by lateral guide elements. Instead of these plates, rotating rollers can also be used, but these do not favor the development result, since they only touch the back of the photographic material.
  • Fig. 1 shows a cross section through a preferred form of the device according to the invention.
  • a photographic color recording material based on high chloride silver halide emulsions is processed using the RA 4 process with normal agitation.
  • the development time at 35 ° C is 45 seconds, the bleach-fix time at 35 ° C is also 45 seconds.
  • the transport speed is 6 m / min.
  • Example 2 The procedure is as in Example 2, but six rollers with a diameter of 3 cm are installed in the developer bath, which touch the photographic material on its emulsion side and have opposite directions of rotation. These rollers run at a peripheral speed which is 5% higher than the transport speed of the photographic material.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Photographic Processing Devices Using Wet Methods (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)
EP93115897A 1992-10-14 1993-10-01 Procédé de développement des matériaux photographiques à l'halogénure d'argent Expired - Lifetime EP0592895B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4234639A DE4234639A1 (de) 1992-10-14 1992-10-14 Vorrichtung zur Entwicklung von fotografischem Silberhalogenidmaterial
DE4234639 1992-10-14

Publications (2)

Publication Number Publication Date
EP0592895A1 true EP0592895A1 (fr) 1994-04-20
EP0592895B1 EP0592895B1 (fr) 1998-02-11

Family

ID=6470450

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93115897A Expired - Lifetime EP0592895B1 (fr) 1992-10-14 1993-10-01 Procédé de développement des matériaux photographiques à l'halogénure d'argent

Country Status (4)

Country Link
US (1) US5430521A (fr)
EP (1) EP0592895B1 (fr)
JP (1) JPH07301903A (fr)
DE (2) DE4234639A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1016920A1 (fr) * 1998-12-29 2000-07-05 Eastman Kodak Company Machine de développement photographique pourvue de rouleaux frottants

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0985972A1 (fr) * 1998-09-10 2000-03-15 Gretag Imaging Ag Dispositif de transport pour matériau photographique

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2218792A1 (de) * 1972-04-18 1973-10-31 Vivian Dwight Krehbiel Vorrichtung zum transportieren eines fotografischen materials in einer chemikalienloesung
US3839040A (en) * 1971-03-15 1974-10-01 A Goldstein Process for preparing colored film overlays
US4063324A (en) * 1976-03-26 1977-12-20 Kroy Industries, Inc. Film processing apparatus
US4081815A (en) * 1972-01-05 1978-03-28 American Hoechst Corporation Apparatus for guiding sheet material into counterrotating brushes

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3147002A1 (de) * 1981-11-27 1983-06-01 Hoechst Ag, 6230 Frankfurt Verarbeitungsgeraet fuer bildmaessig belichtete fotoempfindliche materialien
GB8408055D0 (en) * 1984-03-29 1984-05-10 Ciba Geigy Ag Processing apparatus
US5046286A (en) * 1990-04-19 1991-09-10 Holyoke Robert H Apparatus and method for removing photographic images from a flexible film member
US5177522A (en) * 1990-12-04 1993-01-05 Fuji Photo Film Co., Ltd. Apparatus for processing light-sensitive materials

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3839040A (en) * 1971-03-15 1974-10-01 A Goldstein Process for preparing colored film overlays
US4081815A (en) * 1972-01-05 1978-03-28 American Hoechst Corporation Apparatus for guiding sheet material into counterrotating brushes
DE2218792A1 (de) * 1972-04-18 1973-10-31 Vivian Dwight Krehbiel Vorrichtung zum transportieren eines fotografischen materials in einer chemikalienloesung
US4063324A (en) * 1976-03-26 1977-12-20 Kroy Industries, Inc. Film processing apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1016920A1 (fr) * 1998-12-29 2000-07-05 Eastman Kodak Company Machine de développement photographique pourvue de rouleaux frottants

Also Published As

Publication number Publication date
EP0592895B1 (fr) 1998-02-11
DE59308135D1 (de) 1998-03-19
DE4234639A1 (de) 1994-04-21
JPH07301903A (ja) 1995-11-14
US5430521A (en) 1995-07-04

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