FR1143615A - Process for obtaining direct and revealing positive images for the implementation of this process - Google Patents

Process for obtaining direct and revealing positive images for the implementation of this process

Info

Publication number
FR1143615A
FR1143615A FR1143615DA FR1143615A FR 1143615 A FR1143615 A FR 1143615A FR 1143615D A FR1143615D A FR 1143615DA FR 1143615 A FR1143615 A FR 1143615A
Authority
FR
France
Prior art keywords
implementation
positive images
obtaining direct
revealing
revealing positive
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 FR1143615A publication Critical patent/FR1143615A/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
    • 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
    • G03C1/48553—Direct positive emulsions non-prefogged, i.e. fogged after imagewise exposure characterised by the nucleating/fogging agent the fogging agent only present in the developer
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)
FR1143615D 1953-08-03 1954-08-02 Process for obtaining direct and revealing positive images for the implementation of this process Expired FR1143615A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US371946A US2685514A (en) 1953-08-03 1953-08-03 Direct positive photographic development process

Publications (1)

Publication Number Publication Date
FR1143615A true FR1143615A (en) 1957-10-03

Family

ID=23466058

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1143615D Expired FR1143615A (en) 1953-08-03 1954-08-02 Process for obtaining direct and revealing positive images for the implementation of this process

Country Status (4)

Country Link
US (1) US2685514A (en)
BE (1) BE530882A (en)
FR (1) FR1143615A (en)
GB (1) GB767703A (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2840471A (en) * 1956-09-06 1958-06-24 Francis G Berry Photographic film developer
US3062643A (en) * 1959-05-22 1962-11-06 Eastman Kodak Co Photographic diffusion transfer process
US3719494A (en) * 1970-10-30 1973-03-06 Eastman Kodak Co Silver halide emulsion containing a dihydroaromatic quaternary salt nucleating agent and the use thereof
JPS5710141A (en) * 1980-06-20 1982-01-19 Fuji Photo Film Co Ltd Photographic element for color diffusion transfer
DE3788600T2 (en) * 1986-07-22 1994-04-28 Fuji Photo Film Co Ltd Process for treating silver halide color photographic material.
US5384232A (en) * 1991-12-02 1995-01-24 E. I. Du Pont De Nemours And Company Process for rapid access development of silver halide films using pyridinium as development accelerators

Also Published As

Publication number Publication date
BE530882A (en)
GB767703A (en) 1957-02-06
US2685514A (en) 1954-08-03

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