BE774787A - NEW DIRECT POSITIVE SILVER HALOGRAPH PHOTOGRAPHIC EMULSION - Google Patents

NEW DIRECT POSITIVE SILVER HALOGRAPH PHOTOGRAPHIC EMULSION

Info

Publication number
BE774787A
BE774787A BE774787A BE774787A BE774787A BE 774787 A BE774787 A BE 774787A BE 774787 A BE774787 A BE 774787A BE 774787 A BE774787 A BE 774787A BE 774787 A BE774787 A BE 774787A
Authority
BE
Belgium
Prior art keywords
halograph
photographic emulsion
direct positive
positive silver
new direct
Prior art date
Application number
BE774787A
Other languages
French (fr)
Inventor
D W Kurtz
D W Heseltine
Original Assignee
Eastman Kodak Co
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 Eastman Kodak Co filed Critical Eastman Kodak Co
Publication of BE774787A publication Critical patent/BE774787A/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
    • 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
    • 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
    • Y10S430/141—Direct positive material

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Plural Heterocyclic Compounds (AREA)
  • Heterocyclic Carbon Compounds Containing A Hetero Ring Having Nitrogen And Oxygen As The Only Ring Hetero Atoms (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)
BE774787A 1970-10-30 1971-10-29 NEW DIRECT POSITIVE SILVER HALOGRAPH PHOTOGRAPHIC EMULSION BE774787A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US8570670A 1970-10-30 1970-10-30

Publications (1)

Publication Number Publication Date
BE774787A true BE774787A (en) 1972-02-14

Family

ID=22193417

Family Applications (1)

Application Number Title Priority Date Filing Date
BE774787A BE774787A (en) 1970-10-30 1971-10-29 NEW DIRECT POSITIVE SILVER HALOGRAPH PHOTOGRAPHIC EMULSION

Country Status (7)

Country Link
US (1) US3719494A (en)
JP (1) JPS5247326B1 (en)
BE (1) BE774787A (en)
CA (1) CA970199A (en)
DE (1) DE2154076C3 (en)
FR (1) FR2113371A5 (en)
GB (1) GB1362859A (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
JPS5814665B2 (en) * 1975-12-09 1983-03-22 富士写真フイルム株式会社 Chiyokusetsupojihalogen Kaginkankouzairiyou
US4080207A (en) * 1976-06-29 1978-03-21 Eastman Kodak Company Radiation-sensitive compositions and photographic elements containing N-(acylhydrazinophenyl) thioamide nucleating agents
JPS5319205A (en) * 1976-08-04 1978-02-22 Fuji Photo Film Co Ltd Ps plate for lithographic printing
EP0050558B1 (en) * 1980-10-16 1985-07-17 EASTMAN KODAK COMPANY (a New Jersey corporation) Photographic emulsions and elements capable of forming direct-positive images
FR2497367B1 (en) * 1980-10-16 1987-08-14 Kodak Pathe POSITIVE-DIRECT SILVER HALIDE EMULSION WITH INCORPORATED NUCLEATION AGENT
US4315986A (en) * 1980-11-10 1982-02-16 Eastman Kodak Company Photographic emulsions and elements capable of forming direct-positive images
US4306017A (en) * 1980-11-17 1981-12-15 Eastman Kodak Company Photographic emulsions and elements capable of forming direct-positive images
CA1170886A (en) * 1981-09-02 1984-07-17 Paul M. Magee Nucleating composition for silver halide including triazole substituted and thiourea substituted phenyl hydrazides
US4504570A (en) * 1982-09-30 1985-03-12 Eastman Kodak Company Direct reversal emulsions and photographic elements useful in image transfer film units
US4471044A (en) * 1983-06-13 1984-09-11 Eastman Kodak Company Silver halide emulsions and photographic elements containing adsorbable alkynyl substituted heterocyclic quaternary ammonium salts
CA1303412C (en) 1985-05-31 1992-06-16 Shigeharu Koboshi Method for forming direct positive color image

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE530882A (en) * 1953-08-03
US3367778A (en) * 1965-04-15 1968-02-06 Eastman Kodak Co Silver salt direct positive emulsion

Also Published As

Publication number Publication date
DE2154076B2 (en) 1974-10-24
JPS5247326B1 (en) 1977-12-01
GB1362859A (en) 1974-08-07
CA970199A (en) 1975-07-01
DE2154076A1 (en) 1972-05-10
US3719494A (en) 1973-03-06
DE2154076C3 (en) 1975-06-26
FR2113371A5 (en) 1972-06-23

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