GB1255550A - Photographic silver halide emulsions and materials - Google Patents

Photographic silver halide emulsions and materials

Info

Publication number
GB1255550A
GB1255550A GB22247/69A GB2224769A GB1255550A GB 1255550 A GB1255550 A GB 1255550A GB 22247/69 A GB22247/69 A GB 22247/69A GB 2224769 A GB2224769 A GB 2224769A GB 1255550 A GB1255550 A GB 1255550A
Authority
GB
United Kingdom
Prior art keywords
silver halide
layer
ester
photographic
solvent
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
GB22247/69A
Inventor
Joe Ellis South
Robert Newell Woodward
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 GB1255550A publication Critical patent/GB1255550A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
    • G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
    • G03F7/004—Photosensitive materials
    • G03F7/06—Silver salts
    • 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

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Photosensitive Polymer And Photoresist Processing (AREA)

Abstract

1,255,550. Photographic silver halide emulsions and materials. EASTMAN KODAK CO. May 1, 1969 [May 1, 1968], No.22247/69. Heading G2C. A photographic material comprises a support and a layer of a photo-sensitive silver halide photographic emulsion which contains incorporated in the emulsion layer or a layer adjacent thereto a substantially water-insoluble (i.e. having a solubility of less than 5 grams per litre of water at 20‹ C . ) silver halide developing agent dissolved in a solvent which comprises a di (tetrahydrofurfuryl) ester of a dibasic carboxylic acid which solvent is a liquid of 25‹ C. Many examples of suitable developing agents are listed including nordihydroguaiaretic acid, 4-phenylcatechol being used in the examples. The esters, defined above, of phthalic, succinic, adipic and glutanic acid are preferred. The di (tetrahydrofurfuryl) ester may be mixed with another ester which is substantially water-insoluble (as hereindefined), has a boiling point above 150‹ C . and a molecular weight between 100 and 1000, for example tricresylphosphate and dibutyl phthalate. The ratio of developing agent to total solvent is preferably in the range 1:1 to 1:15 by weight. The silver halide emulsion layer may be a direct-positive layer and the photographic material defined above may be used to provide a lithographic printing plate. The support may be paper bearing a sublayer of TiO 2 pigmented polyethylene and backing layer of clear polyethylene.
GB22247/69A 1968-05-01 1969-05-01 Photographic silver halide emulsions and materials Expired GB1255550A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US72581468A 1968-05-01 1968-05-01

Publications (1)

Publication Number Publication Date
GB1255550A true GB1255550A (en) 1971-12-01

Family

ID=24916069

Family Applications (1)

Application Number Title Priority Date Filing Date
GB22247/69A Expired GB1255550A (en) 1968-05-01 1969-05-01 Photographic silver halide emulsions and materials

Country Status (6)

Country Link
US (1) US3576634A (en)
BE (1) BE732470A (en)
BR (1) BR6908453D0 (en)
DE (1) DE1921856B2 (en)
FR (1) FR2007611A1 (en)
GB (1) GB1255550A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4839170B1 (en) * 1970-12-21 1973-11-22
JPS54152502A (en) * 1978-05-19 1979-11-30 Fuji Photo Film Co Ltd Photosensitive printing plate material and method of making printing plate from said material

Also Published As

Publication number Publication date
BE732470A (en) 1969-10-16
FR2007611A1 (en) 1970-01-09
US3576634A (en) 1971-04-27
DE1921856B2 (en) 1971-12-09
BR6908453D0 (en) 1973-01-18
DE1921856A1 (en) 1969-11-27

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