CA1057106A - Light sensitive, direct positive silver halide emulsions and process of manufacture - Google Patents

Light sensitive, direct positive silver halide emulsions and process of manufacture

Info

Publication number
CA1057106A
CA1057106A CA222,603A CA222603A CA1057106A CA 1057106 A CA1057106 A CA 1057106A CA 222603 A CA222603 A CA 222603A CA 1057106 A CA1057106 A CA 1057106A
Authority
CA
Canada
Prior art keywords
silver halide
silver
emulsion
direct positive
compound
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
CA222,603A
Other languages
English (en)
French (fr)
Other versions
CA222603S (en
Inventor
Luigi Valbusa
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.)
3M Co
Original Assignee
Minnesota Mining and Manufacturing 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 Minnesota Mining and Manufacturing Co filed Critical Minnesota Mining and Manufacturing Co
Application granted granted Critical
Publication of CA1057106A publication Critical patent/CA1057106A/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
    • G03C1/48515—Direct positive emulsions prefogged

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)
CA222,603A 1974-03-21 1975-03-20 Light sensitive, direct positive silver halide emulsions and process of manufacture Expired CA1057106A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT4937774A IT1021529B (it) 1974-03-21 1974-03-21 Procedimento per la preparazione di emulsioni fotosensibili agli aloge nuri d argento positive dirette di migliorate caratteristiche sensito metriche emulsioni fotosensibili co si ottenute ed elementi fotografici contenenti dette emulsioni agli alo cenuri d argento positive dirette

Publications (1)

Publication Number Publication Date
CA1057106A true CA1057106A (en) 1979-06-26

Family

ID=11270517

Family Applications (1)

Application Number Title Priority Date Filing Date
CA222,603A Expired CA1057106A (en) 1974-03-21 1975-03-20 Light sensitive, direct positive silver halide emulsions and process of manufacture

Country Status (7)

Country Link
JP (1) JPS50141322A (xx)
BE (1) BE827000A (xx)
CA (1) CA1057106A (xx)
DE (1) DE2512646A1 (xx)
FR (1) FR2273302B1 (xx)
GB (1) GB1498876A (xx)
IT (1) IT1021529B (xx)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3061035D1 (en) * 1979-07-17 1982-12-09 Ciba Geigy Ag Halogenated cyanine dyes with three nuclei, method of preparation of the same, use of them as sensitizers in direct positive photographic materials, direct positive photographic material with a content of trinuclear halogenated cyanine dyes and use of this direct positive photographic material for the production of direct positive images
JPH05289213A (ja) * 1992-04-08 1993-11-05 Fuji Photo Film Co Ltd 被らせ型直接ポジ用ハロゲン化銀乳剤の調製方法
US5399466A (en) * 1993-01-15 1995-03-21 Eastman Kodak Company [Method of processing] photographic elements having fogged grains and development inhibitors for interimage

Also Published As

Publication number Publication date
FR2273302B1 (xx) 1982-03-19
GB1498876A (en) 1978-01-25
FR2273302A1 (xx) 1975-12-26
DE2512646A1 (de) 1975-09-25
BE827000A (fr) 1975-09-22
IT1021529B (it) 1978-02-20
JPS50141322A (xx) 1975-11-13

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