SE8206450L - DIRECT POSITIVE PHOTOGRAPHIC ELEMENT - Google Patents

DIRECT POSITIVE PHOTOGRAPHIC ELEMENT

Info

Publication number
SE8206450L
SE8206450L SE8206450A SE8206450A SE8206450L SE 8206450 L SE8206450 L SE 8206450L SE 8206450 A SE8206450 A SE 8206450A SE 8206450 A SE8206450 A SE 8206450A SE 8206450 L SE8206450 L SE 8206450L
Authority
SE
Sweden
Prior art keywords
direct positive
silver halide
positive photographic
image
photographic elements
Prior art date
Application number
SE8206450A
Other languages
Unknown language ( )
Swedish (sv)
Other versions
SE8206450D0 (en
SE451040B (en
Inventor
R L Daubendiek
F J Evans
R G Raleigh
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 SE8206450D0 publication Critical patent/SE8206450D0/en
Publication of SE8206450L publication Critical patent/SE8206450L/en
Publication of SE451040B publication Critical patent/SE451040B/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
    • G03C1/48569—Direct positive emulsions non-prefogged, i.e. fogged after imagewise exposure characterised by the emulsion type/grain forms, e.g. tabular grain emulsions

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)

Abstract

Direct positive photographic elements having a support and at least one emulsion layer comprised of a dispersing medium, silver halide grains capable of forming an internal latent image, and a nucleating agent wherein at least 50 percent of the total projected area of said silver halide grains are provided by tabular grains which have an average thickness of less than 0.5 micrometer and an average aspect ratio of greater than 8:1. The emulsion can form at least one layer in multicolour photographic elements. Image transfer film units incorporating such emulsions are disclosed. <IMAGE>
SE8206450A 1981-11-12 1982-11-12 DIRECT POSITIVE PHOTOGRAPHIC ELEMENT INCLUDING AT LEAST ONE EMULSION LAYER CONTAINING PLATED SILVER HALOGENID CORN SE451040B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US32089181A 1981-11-12 1981-11-12
US43191282A 1982-09-30 1982-09-30

Publications (3)

Publication Number Publication Date
SE8206450D0 SE8206450D0 (en) 1982-11-12
SE8206450L true SE8206450L (en) 1983-05-13
SE451040B SE451040B (en) 1987-08-24

Family

ID=26982707

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8206450A SE451040B (en) 1981-11-12 1982-11-12 DIRECT POSITIVE PHOTOGRAPHIC ELEMENT INCLUDING AT LEAST ONE EMULSION LAYER CONTAINING PLATED SILVER HALOGENID CORN

Country Status (11)

Country Link
AU (1) AU560223B2 (en)
BR (1) BR8206564A (en)
CA (1) CA1175692A (en)
CH (1) CH653150A5 (en)
DE (1) DE3241643C2 (en)
FR (1) FR2516262B1 (en)
GB (1) GB2110831B (en)
IE (1) IE54328B1 (en)
IT (1) IT1156334B (en)
NL (1) NL190672C (en)
SE (1) SE451040B (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4444874A (en) * 1982-09-15 1984-04-24 Eastman Kodak Company Photographic elements containing direct-positive emulsions and processes for their use
JPS60173541A (en) * 1984-02-20 1985-09-06 Fuji Photo Film Co Ltd Photo sensitive material comprising silver halide for direct positive
US4520098A (en) * 1984-05-31 1985-05-28 Eastman Kodak Company Photographic element exhibiting reduced sensitizing dye stain
CA1259845A (en) * 1985-02-04 1989-09-26 Allan F. Sowinski Reversal photographic elements containing tabular grain emulsions
JPH0610756B2 (en) * 1985-07-17 1994-02-09 富士写真フイルム株式会社 Silver halide color-reversal photographic material
JPH0619570B2 (en) * 1986-02-07 1994-03-16 富士写真フイルム株式会社 Photosensitive material
JPS62260139A (en) * 1986-04-25 1987-11-12 イルフオード　アー　ゲー Manufacture of photographic direct positive emulsion

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1507989A (en) * 1974-12-19 1978-04-19 Ciba Geigy Ag Photographic emulsions
GB1570581A (en) * 1978-05-25 1980-07-02 Ciba Geigy Ag Preparation of silver halide emulsions
GB1520976A (en) * 1976-06-10 1978-08-09 Ciba Geigy Ag Photographic emulsions
DE2905655C2 (en) * 1977-06-08 1995-03-30 Ilford Ltd A process for the preparation of photographic silver halide emulsions containing twin-type silver halide crystals

Also Published As

Publication number Publication date
NL190672C (en) 1994-06-16
BR8206564A (en) 1983-09-27
GB2110831A (en) 1983-06-22
IE822702L (en) 1983-05-12
SE8206450D0 (en) 1982-11-12
CA1175692A (en) 1984-10-09
NL8204398A (en) 1983-06-01
IT1156334B (en) 1987-02-04
AU9038082A (en) 1983-05-19
DE3241643C2 (en) 1997-04-17
FR2516262A1 (en) 1983-05-13
DE3241643A1 (en) 1983-05-19
IT8224240A0 (en) 1982-11-12
SE451040B (en) 1987-08-24
CH653150A5 (en) 1985-12-13
NL190672B (en) 1994-01-17
AU560223B2 (en) 1987-04-02
FR2516262B1 (en) 1987-02-20
IE54328B1 (en) 1989-08-30
GB2110831B (en) 1985-08-21

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