CH278309A - Process for the direct production of positive photographic images. - Google Patents

Process for the direct production of positive photographic images.

Info

Publication number
CH278309A
CH278309A CH278309DA CH278309A CH 278309 A CH278309 A CH 278309A CH 278309D A CH278309D A CH 278309DA CH 278309 A CH278309 A CH 278309A
Authority
CH
Switzerland
Prior art keywords
photographic images
direct production
positive photographic
positive
direct
Prior art date
Application number
Other languages
German (de)
Inventor
Farbenfabriken Bayer
Original Assignee
Bayer 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 Bayer Ag filed Critical Bayer Ag
Publication of CH278309A publication Critical patent/CH278309A/en

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
    • 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
    • G03C7/00—Multicolour photographic processes or agents therefor; Regeneration of such processing agents; Photosensitive materials for multicolour processes
    • G03C7/30—Colour processes using colour-coupling substances; Materials therefor; Preparing or processing such materials
    • G03C7/3022—Materials with specific emulsion characteristics, e.g. thickness of the layers, silver content, shape of AgX grains
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S430/00—Radiation imagery chemistry: process, composition, or product thereof
    • Y10S430/156—Precursor compound
    • Y10S430/158—Development inhibitor releaser, DIR

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)
CH278309D 1949-07-04 1949-07-04 Process for the direct production of positive photographic images. CH278309A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH690997X 1949-07-04

Publications (1)

Publication Number Publication Date
CH278309A true CH278309A (en) 1951-10-15

Family

ID=4529235

Family Applications (1)

Application Number Title Priority Date Filing Date
CH278309D CH278309A (en) 1949-07-04 1949-07-04 Process for the direct production of positive photographic images.

Country Status (4)

Country Link
US (1) US2712995A (en)
CH (1) CH278309A (en)
FR (1) FR993337A (en)
GB (1) GB690997A (en)

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE539322A (en) * 1954-06-29
US2968554A (en) * 1954-08-09 1961-01-17 Polaroid Corp Photographic transfer processes for forming multicolor dye images and photographic products for carrying out the same
US2861885A (en) * 1954-11-04 1958-11-25 Polaroid Corp Photographic processes and products
US2834676A (en) * 1955-07-19 1958-05-13 Sperry Rand Corp Photographic diffusion transfer process for producing multiple direct positive copies
BE549753A (en) * 1955-07-22
US2937086A (en) * 1955-07-26 1960-05-17 Eastman Kodak Co Multilayer reversal color material
BE552299A (en) * 1955-11-16
NL92465C (en) * 1955-12-27
NL104735C (en) * 1956-06-22
US2995444A (en) * 1957-09-26 1961-08-08 Gen Aniline & Film Corp Stabilization of photographic emulsions sensitized with alkylene oxide polymers
US3050391A (en) * 1957-12-30 1962-08-21 Gen Aniline & Film Corp Photographic film with fine grain silver chloride underlayer
BE581611A (en) * 1958-08-27
US3044873A (en) * 1958-12-17 1962-07-17 Polaroid Corp Photographic products and processes
BE586348A (en) * 1959-01-10
BE589419A (en) * 1959-04-06
US3148062A (en) * 1959-04-06 1964-09-08 Eastman Kodak Co Photographic elements and processes using splittable couplers
US3072480A (en) * 1959-04-10 1963-01-08 Eastman Kodak Co Photographic diffusion transfer process
US3140179A (en) * 1959-10-22 1964-07-07 Eastman Kodak Co Photographic element having increased speed and contrast
BE606548A (en) * 1960-07-26
BE615613A (en) * 1961-03-27
US3536488A (en) * 1968-06-13 1970-10-27 Polaroid Corp Multicolor screen-carrying element in additive color photographic processes
DE2036213C2 (en) * 1970-07-21 1983-01-20 Polaroid Corp., 02139 Cambridge, Mass. Color photographic recording material
IT974830B (en) * 1972-11-15 1974-07-10 Minnesota Mining & Mfg METHOD FOR THE FORMATION OF A COLOR CONTRAST PHOTOGRAPHIC IMAGE PHOTOGRAPHIC ELEMENT AND DEVELOPMENT COMPOSITION SUITABLE FOR THE REALIZATION OF THIS METHOD
US4047956A (en) * 1975-11-17 1977-09-13 E. I. Du Pont De Nemours And Company Low coating weight silver halide element and process
JPS6014334B2 (en) * 1979-04-13 1985-04-12 コニカ株式会社 Shadow image forming method

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1454209A (en) * 1922-01-13 1923-05-08 Eastman Kodak Co Self-toning photographic emulsion
US2005837A (en) * 1931-07-07 1935-06-25 Agfa Ansco Corp Manufacture of photographic emulsions
US1897866A (en) * 1931-08-25 1933-02-14 Eastman Kodak Co Color photographic process
BE402030A (en) * 1933-03-22
GB446172A (en) * 1934-10-11 1936-04-14 Geoffrey Bond Harrison Improvements in or relating to photographic reversal processes
BE425269A (en) * 1936-12-18
US2191502A (en) * 1937-01-22 1940-02-27 Pont Film Mfg Company Du Multicolor film and process
GB494088A (en) * 1937-03-18 1938-10-18 Frank Forster Renwick Improvements in or relating to photographic printing processes and materials
NL59365C (en) * 1939-11-02
US2358169A (en) * 1941-03-14 1944-09-12 Eastman Kodak Co Photographic printing material
US2352014A (en) * 1941-07-21 1944-06-20 Rott Andre Photomechanical printing process and printing material for carrying out the same
US2456953A (en) * 1942-02-09 1948-12-21 Eastman Kodak Co Photographic reversal processes
GB580173A (en) * 1943-03-15 1946-08-29 Kodak Ltd Improvements in or relating to photographic processes
US2456954A (en) * 1947-08-01 1948-12-21 Eastman Kodak Co Photographic reversal processes
US2497875A (en) * 1947-10-17 1950-02-21 Eastman Kodak Co Direct positive photographs using aerial fogging developer
US2496940A (en) * 1948-10-21 1950-02-07 Eastman Kodak Co Mixed grain photographic process

Also Published As

Publication number Publication date
US2712995A (en) 1955-07-12
FR993337A (en) 1951-10-30
GB690997A (en) 1953-05-06

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