DE1170779B - Photographisches Direkt-Positivmaterial - Google Patents

Photographisches Direkt-Positivmaterial

Info

Publication number
DE1170779B
DE1170779B DEJ21412A DEJ0021412A DE1170779B DE 1170779 B DE1170779 B DE 1170779B DE J21412 A DEJ21412 A DE J21412A DE J0021412 A DEJ0021412 A DE J0021412A DE 1170779 B DE1170779 B DE 1170779B
Authority
DE
Germany
Prior art keywords
emulsion
photographic material
desensitizer
direct positive
positive photographic
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.)
Pending
Application number
DEJ21412A
Other languages
German (de)
English (en)
Inventor
Douglas James Fry
Bernard Alan Lea
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.)
Ilford Imaging UK Ltd
Original Assignee
Ilford Ltd
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 Ilford Ltd filed Critical Ilford Ltd
Publication of DE1170779B publication Critical patent/DE1170779B/de
Pending legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D471/00Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, at least one ring being a six-membered ring with one nitrogen atom, not provided for by groups C07D451/00 - C07D463/00
    • C07D471/12Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, at least one ring being a six-membered ring with one nitrogen atom, not provided for by groups C07D451/00 - C07D463/00 in which the condensed system contains three hetero rings
    • C07D471/14Ortho-condensed systems
    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03CPHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C1/00Photosensitive materials
    • G03C1/005Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein
    • G03C1/485Direct positive emulsions

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (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)
  • Plural Heterocyclic Compounds (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)
DEJ21412A 1961-03-10 1962-03-09 Photographisches Direkt-Positivmaterial Pending DE1170779B (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8928/61A GB940152A (en) 1961-03-10 1961-03-10 Direct positive photographic materials

Publications (1)

Publication Number Publication Date
DE1170779B true DE1170779B (de) 1964-05-21

Family

ID=9862028

Family Applications (1)

Application Number Title Priority Date Filing Date
DEJ21412A Pending DE1170779B (de) 1961-03-10 1962-03-09 Photographisches Direkt-Positivmaterial

Country Status (4)

Country Link
US (1) US3124458A (zh)
DE (1) DE1170779B (zh)
GB (1) GB940152A (zh)
NL (2) NL275770A (zh)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3326687A (en) * 1964-11-10 1967-06-20 Eastman Kodak Co Photographic colloid transfer system
US3642477A (en) * 1969-04-24 1972-02-15 Keuffel & Esser Co Imaging method
US3628958A (en) * 1970-03-02 1971-12-21 Eastman Kodak Co Bipyridinium compound/nitrosubstituted n-heterocyclic compound desensitized silver halide emulsion
JPS5647544B2 (zh) * 1973-03-27 1981-11-10
US4036649A (en) * 1976-06-17 1977-07-19 E. I. Du Pont De Nemours And Company Silver halide emulsion sensitized with a fused diazepine
US4539291A (en) * 1982-12-24 1985-09-03 Fuji Photo Film Co., Ltd. Direct positive silver halide photographic materials
US6338940B1 (en) * 1998-06-26 2002-01-15 Konica Corporation Silver halide photographic light sensitive materials and image forming method by use thereof

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL110449C (zh) * 1957-08-19
NL245302A (zh) * 1958-11-12

Also Published As

Publication number Publication date
US3124458A (en) 1964-03-10
NL275770A (zh)
NL120472C (zh)
GB940152A (en) 1963-10-23

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