FR1087759A - Photographic inversion process and new products for its implementation - Google Patents

Photographic inversion process and new products for its implementation

Info

Publication number
FR1087759A
FR1087759A FR1087759DA FR1087759A FR 1087759 A FR1087759 A FR 1087759A FR 1087759D A FR1087759D A FR 1087759DA FR 1087759 A FR1087759 A FR 1087759A
Authority
FR
France
Prior art keywords
photographic
implementation
new products
inversion process
inversion
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
Other languages
French (fr)
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.)
Kodak Pathe SA
Original Assignee
Kodak Pathe SA
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 Kodak Pathe SA filed Critical Kodak Pathe SA
Application granted granted Critical
Publication of FR1087759A publication Critical patent/FR1087759A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C5/00—Photographic processes or agents therefor; Regeneration of such processing agents
    • G03C5/26—Processes using silver-salt-containing photosensitive materials or agents therefor
    • G03C5/50—Reversal development; Contact processes
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C1/00—Photosensitive materials
    • G03C1/005—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein
    • G03C1/485—Direct positive emulsions
    • G03C1/48538—Direct positive emulsions non-prefogged, i.e. fogged after imagewise exposure
    • G03C1/48546—Direct positive emulsions non-prefogged, i.e. fogged after imagewise exposure characterised by the nucleating/fogging agent
    • G03C1/48561—Direct positive emulsions non-prefogged, i.e. fogged after imagewise exposure characterised by the nucleating/fogging agent hydrazine compounds

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
FR1087759D 1950-04-29 1951-04-28 Photographic inversion process and new products for its implementation Expired FR1087759A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US159150A US2563785A (en) 1950-04-29 1950-04-29 Direct positive photographs from hydrazine-containing developers

Publications (1)

Publication Number Publication Date
FR1087759A true FR1087759A (en) 1955-02-28

Family

ID=22571289

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1087759D Expired FR1087759A (en) 1950-04-29 1951-04-28 Photographic inversion process and new products for its implementation

Country Status (5)

Country Link
US (1) US2563785A (en)
BE (1) BE502879A (en)
DE (1) DE877548C (en)
FR (1) FR1087759A (en)
GB (1) GB702162A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0254280A2 (en) * 1986-07-22 1988-01-27 Fuji Photo Film Co., Ltd. Method for processing silver halide color photographic material

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2588982A (en) * 1950-10-26 1952-03-11 Eastman Kodak Co Direct positive photographs using hydrazine in the emulsion
BE512294A (en) * 1951-06-27
US2706157A (en) * 1951-07-21 1955-04-12 Grant Photo Products Inc Processing photographic paper and film
BE636671A (en) * 1960-05-13
GB1195837A (en) * 1966-10-24 1970-06-24 Agfa Gevaert Nv Method of Producing Photographic Images
JPS5115745B1 (en) * 1971-03-26 1976-05-19
US3917485A (en) * 1973-01-18 1975-11-04 Eastman Kodak Co Method of making photographic silver halide emulsions and products thereof
US4030925A (en) * 1975-08-06 1977-06-21 Eastman Kodak Company Photographic compositions and elements including internal latent image silver halide grains and acylhydrazinophenylthiourea nucleating agents therefor
US4031127A (en) * 1975-08-06 1977-06-21 Eastman Kodak Company Acyl hydrazino thiourea derivatives as photographic nucleating agents
US4030920A (en) * 1976-04-12 1977-06-21 Eastman Kodak Company Processing compositions containing glycols for color transfer processes comprising direct positive silver halide developement
US4080207A (en) * 1976-06-29 1978-03-21 Eastman Kodak Company Radiation-sensitive compositions and photographic elements containing N-(acylhydrazinophenyl) thioamide nucleating agents
JPS5814664B2 (en) * 1976-12-30 1983-03-22 富士写真フイルム株式会社 Processing method for silver halide photographic materials
JPS6055820B2 (en) * 1979-03-26 1985-12-06 コニカ株式会社 Direct positive silver halide photographic material
JPS55138742A (en) * 1979-04-17 1980-10-29 Fuji Photo Film Co Ltd Silver halide emulsion developing method
JPS59201049A (en) * 1983-04-30 1984-11-14 Konishiroku Photo Ind Co Ltd Method for forming positive type image
US4478928A (en) * 1983-05-11 1984-10-23 Eastman Kodak Company Application of activated arylhydrazides to silver halide photography
US4459347A (en) * 1983-05-11 1984-07-10 Eastman Kodak Company Adsorbable arylhydrazides and applications thereof to silver halide photography
US4560638A (en) * 1984-10-09 1985-12-24 Eastman Kodak Company Halftone imaging silver halide emulsions, photographic elements, and processes which employ novel arylhydrazides
US4661438A (en) 1985-04-04 1987-04-28 Eastman Kodak Company Quaternized tellurium salt fog inhibiting agents for silver halide photography
DE3681347D1 (en) 1985-05-31 1991-10-17 Konishiroku Photo Ind METHOD FOR PRODUCING A DIRECTLY POSITIVE COLOR IMAGE.
US4937160A (en) * 1988-08-27 1990-06-26 E. I. Du Pont De Nemours And Company Photographic silver halide elements containing aryl hydrazides
US5190847A (en) * 1990-02-26 1993-03-02 E. I. Du Pont De Nemours And Company Photographic silver halide materials containing aryl hydrazides
EP0603433A1 (en) * 1992-12-22 1994-06-29 Agfa-Gevaert N.V. Method of making direct-positive images
EP0754967A1 (en) 1995-07-14 1997-01-22 Agfa-Gevaert N.V. Photographic direct positive material containing a particular stabilizer
JP2003026651A (en) * 2001-07-09 2003-01-29 Japan Hydrazine Co Inc Dihydrazide sulfosuccinate and method for manufacturing the same

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0254280A2 (en) * 1986-07-22 1988-01-27 Fuji Photo Film Co., Ltd. Method for processing silver halide color photographic material
EP0254280B1 (en) * 1986-07-22 1993-12-29 Fuji Photo Film Co., Ltd. Method for processing silver halide color photographic material

Also Published As

Publication number Publication date
BE502879A (en)
US2563785A (en) 1951-08-07
GB702162A (en) 1954-01-13
DE877548C (en) 1953-05-26

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