GB1236107A - Photographic silver halide print-out emulsion - Google Patents

Photographic silver halide print-out emulsion

Info

Publication number
GB1236107A
GB1236107A GB45961/68A GB4596168A GB1236107A GB 1236107 A GB1236107 A GB 1236107A GB 45961/68 A GB45961/68 A GB 45961/68A GB 4596168 A GB4596168 A GB 4596168A GB 1236107 A GB1236107 A GB 1236107A
Authority
GB
United Kingdom
Prior art keywords
silver halide
photographic silver
print
emulsion
metal ions
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
GB45961/68A
Inventor
Robert Elwin Bacon
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.)
Eastman Kodak Co
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 GB1236107A publication Critical patent/GB1236107A/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
    • G03C1/49—Print-out and photodevelopable emulsions

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)

Abstract

1,236,107. Print-out and photo-developable photographic silver halide materials. EASTMAN KODAK CO. Sept.27, 1968 [Oct. 2, 1967], No. 45961/68. Heading G2C. A photographic silver halide print-out emulsion having silver halide grains containing occluded trivalent or tervalent metal ions contains a halogen acceptor and an aldehyde or aldehyde precursor, such as formaldehyde, glutaraldehyde crotonaldehyde, glyoxal, succinaldehyde fumaric dialdehyde, acetaldehyde, benzaldehyde, terephthalaldehyde, paraformaldehyde, sodium formaldehyde bisulphite or paraldehyde. The halogen acceptor is a urazole or thiosemicarbazide and metal ions occluded are Bi, Rh, Ir, Pt and Os. The emulsion may be coated and the material printed out or after a short exposure it may be heated and then photodeveloped. The aldehydes increase incubation stability and give increased D max and decreased D min and high speed when used for photodevelopment.
GB45961/68A 1967-10-02 1968-09-27 Photographic silver halide print-out emulsion Expired GB1236107A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US67198867A 1967-10-02 1967-10-02

Publications (1)

Publication Number Publication Date
GB1236107A true GB1236107A (en) 1971-06-23

Family

ID=24696692

Family Applications (1)

Application Number Title Priority Date Filing Date
GB45961/68A Expired GB1236107A (en) 1967-10-02 1968-09-27 Photographic silver halide print-out emulsion

Country Status (5)

Country Link
US (1) US3547647A (en)
BE (1) BE721567A (en)
DE (1) DE1800704A1 (en)
FR (1) FR1585286A (en)
GB (1) GB1236107A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3690888A (en) * 1970-06-04 1972-09-12 Eastman Kodak Co Process of making silver halide emulsions having polyvalent metal ions occluded therein
JPS5517374B2 (en) * 1971-11-09 1980-05-10
US6942960B2 (en) * 2003-08-12 2005-09-13 Eastman Kodak Company Photothermographic materials containing doped high iodide emulsions
US7462443B2 (en) * 2003-09-05 2008-12-09 Hewlett-Packard Development Company, L.P. Leuco dye-containing coating compositions

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2588982A (en) * 1950-10-26 1952-03-11 Eastman Kodak Co Direct positive photographs using hydrazine in the emulsion
US3457072A (en) * 1965-10-22 1969-07-22 Eastman Kodak Co Photographic element and process

Also Published As

Publication number Publication date
BE721567A (en) 1969-03-03
DE1800704A1 (en) 1969-07-31
US3547647A (en) 1970-12-15
FR1585286A (en) 1970-01-16

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