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GB1275069A - Photographic silver halide materials with wide exposure latitude - Google Patents

Photographic silver halide materials with wide exposure latitude

Info

Publication number
GB1275069A
GB1275069A GB25122/69A GB2512269A GB1275069A GB 1275069 A GB1275069 A GB 1275069A GB 25122/69 A GB25122/69 A GB 25122/69A GB 2512269 A GB2512269 A GB 2512269A GB 1275069 A GB1275069 A GB 1275069A
Authority
GB
United Kingdom
Prior art keywords
silver halide
layer
photographic
slower
coupler
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
GB25122/69A
Inventor
John Carl Marchant
Robert Franklin Motter
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 GB1275069A publication Critical patent/GB1275069A/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
    • G03C7/00—Multicolour photographic processes or agents therefor; Regeneration of such processing agents; Photosensitive materials for multicolour processes
    • G03C7/30—Colour processes using colour-coupling substances; Materials therefor; Preparing or processing such materials
    • G03C7/3003—Materials characterised by the use of combinations of photographic compounds known as such, or by a particular location in the photographic element
    • 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
    • G03C1/46—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein having more than one photosensitive layer
    • 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
    • G03C7/00—Multicolour photographic processes or agents therefor; Regeneration of such processing agents; Photosensitive materials for multicolour processes
    • G03C7/30—Colour processes using colour-coupling substances; Materials therefor; Preparing or processing such materials
    • G03C7/3029—Materials characterised by a specific arrangement of layers, e.g. unit layers, or layers having a specific function
    • G03C2007/3034—Unit layer
    • 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
    • G03C7/00—Multicolour photographic processes or agents therefor; Regeneration of such processing agents; Photosensitive materials for multicolour processes
    • G03C7/30—Colour processes using colour-coupling substances; Materials therefor; Preparing or processing such materials
    • G03C7/305—Substances liberating photographically active agents, e.g. development-inhibiting releasing couplers
    • G03C7/30541—Substances liberating photographically active agents, e.g. development-inhibiting releasing couplers characterised by the released group

Landscapes

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

Abstract

1275069 Photographic silver halide materials with wide exposure latitude EASTMAN KODAK CO 16 May 1969 [20 May 1968] 25122/69 Heading G2C A photographic material comprises a support carrying two light-sensitive silver halide emulsion layers having different photographic speeds but sensitive to the same region of the spectrum, the slower layer containing a non-diffusible photographic image-forming coupler and a non- diffusible development-inhibitor-releasing (DIR) coupler, the faster layer containing a non- diffusible photographic image-forming coupler and having a higher effective photographic speed than said slower layer. The faster layer preferably has an effective photographic speed at least 0À6 log exposure units higher than the slower layer. Many examples are listed of couplers. The DIR coupler preferably carries a heterocyclic monothir radical in its coupling position. Other DIR couplers include α-{3-[α-(2,4-di-tertamylphenoxy) butyramido]benzoyl}-α-(2- aminophenylazoxy)-2-methoxyacetanilide and α-{3-[γ-(2,4-di-tert-amylphenoxy)butyramido]- benzoyl-α-(2-amino-4-methylphenylazoxy)-2- methoxy-acetanilide. The light-sensitive silver halide emulsion layers may be separated from the support by a non-image recording silver halide emulsion layer in which the silver halide grains have an average diameter of less than 1 micron. The non-image recording layer may have a thickness of 10-40 microns, and reduces image spread. Both the slower and faster layers may contain cyan-forming couplers and the DIR coupler may form a cyan dye (see Example). The light-sensitive silver halide emulsion layers may be separated from the support by an antihalation layer. The DIR coupler in the slower layer extends exposure latitude and reduces contrast. These materials can record images of vastly different intensity in close geometrical proximity with minimal image spread, and exhibit excellent sharpness. They produce high contrast records of faint images and low contrast records of bright images. Reference has been directed by the Comptroller to Specification 953454.
GB25122/69A 1968-05-20 1969-05-16 Photographic silver halide materials with wide exposure latitude Expired GB1275069A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US73059368A 1968-05-20 1968-05-20

Publications (1)

Publication Number Publication Date
GB1275069A true GB1275069A (en) 1972-05-24

Family

ID=24935967

Family Applications (1)

Application Number Title Priority Date Filing Date
GB25122/69A Expired GB1275069A (en) 1968-05-20 1969-05-16 Photographic silver halide materials with wide exposure latitude

Country Status (6)

Country Link
US (1) US3620747A (en)
JP (1) JPS493843B1 (en)
BE (1) BE733342A (en)
DE (1) DE1925359A1 (en)
FR (1) FR2008905A1 (en)
GB (1) GB1275069A (en)

Families Citing this family (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4917735B1 (en) * 1970-12-26 1974-05-02
US3839044A (en) * 1971-03-25 1974-10-01 Eastman Kodak Co Silver halide emulsions containing 2-equivalent color couplers
US4003744A (en) * 1972-12-07 1977-01-18 Polaroid Corporation Photographic products with photosensitive layers of same spectral sensitivity and different speed
JPS587987B2 (en) * 1973-04-13 1983-02-14 富士写真フイルム株式会社 color
JPS5336779B2 (en) * 1973-05-04 1978-10-04
JPS5939738B2 (en) * 1973-08-16 1984-09-26 コニカ株式会社 Multilayer color photographic material
US3960558A (en) * 1974-04-29 1976-06-01 Polaroid Corporation Dye free, spectrally sensitive silver halide layers in diffusion transfer films
JPS51337A (en) * 1974-06-20 1976-01-06 Fuji Photo Film Co Ltd
US4184876A (en) * 1974-07-09 1980-01-22 Eastman Kodak Company Color photographic materials having increased speed
US4205990A (en) * 1975-08-02 1980-06-03 Konishiroku Photo Industry Co., Ltd. Process for forming a cyan dye image by the use of a 2-equivalent cyan coupler
JPS5943736B2 (en) * 1976-01-26 1984-10-24 富士写真フイルム株式会社 Method of forming color photographic images
JPS5352423A (en) * 1976-10-23 1978-05-12 Konishiroku Photo Ind Co Ltd Color image formation method
JPS5936253B2 (en) * 1978-05-02 1984-09-03 ポラロイド コ−ポレ−シヨン Photographic elements for diffusion transfer film units
US4391896A (en) * 1978-09-20 1983-07-05 Eastman Kodak Company Mixture of nondiffusible redox dye-releasers for curve shape control
DE2855997A1 (en) * 1978-12-23 1980-07-10 Agfa Gevaert Ag PHOTOGRAPHIC RECORDING MATERIAL
DE3029209A1 (en) * 1980-08-01 1982-03-18 Agfa-Gevaert Ag, 5090 Leverkusen LIGHT SENSITIVE PHOTOGRAPHIC RECORDING MATERIAL AND THEIR USE FOR PRODUCING PHOTOGRAPHIC IMAGES
US4414308A (en) * 1981-03-20 1983-11-08 Konishiroku Photo Industry Co., Ltd. Silver halide color photographic photosensitive material
JPS5850533A (en) * 1981-09-21 1983-03-25 Fuji Photo Film Co Ltd Color photosensitive silver halide material
JPS58140740A (en) * 1982-02-15 1983-08-20 Konishiroku Photo Ind Co Ltd Photosensitive silver halide material
JPS58143335A (en) * 1982-02-19 1983-08-25 Konishiroku Photo Ind Co Ltd Silver halide photosensitive material
JPS6066250A (en) * 1983-09-21 1985-04-16 Konishiroku Photo Ind Co Ltd Silver halide photosensitive material
JPS60172040A (en) * 1984-02-17 1985-09-05 Fuji Photo Film Co Ltd Color reversal photographic sensitive material
US4963465A (en) * 1989-01-12 1990-10-16 Agfa-Gevaert Aktiengesellschaft Color photographic negative recording material
FR2664399A1 (en) * 1990-07-04 1992-01-10 Kodak Pathe INVERSIBLE PRODUCT FOR COLOR PHOTOGRAPHY WITH FINE GRAIN UNDERCOAT.
JPH0553264A (en) * 1991-08-23 1993-03-05 Konica Corp Silver halide color photographic sensitive material
JPH0743850A (en) * 1993-07-27 1995-02-14 Konica Corp Direct positive silver halide color photographic sensitive material
DE69517475T2 (en) * 1994-08-17 2001-03-08 Eastman Kodak Co., Rochester Color photographic silver halide material
FR2723791B1 (en) * 1994-08-17 1997-01-03 Kodak Pathe SILVER CHLORIDE PHOTOGRAPHIC PRODUCT AND PHOTOGRAPHY METHOD USING THE SAME
US7978925B1 (en) 2005-04-16 2011-07-12 Apple Inc. Smoothing and/or locking operations in video editing
US8760537B2 (en) 2010-07-05 2014-06-24 Apple Inc. Capturing and rendering high dynamic range images

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE561126A (en) * 1956-09-26
US3050391A (en) * 1957-12-30 1962-08-21 Gen Aniline & Film Corp Photographic film with fine grain silver chloride underlayer
US3148062A (en) * 1959-04-06 1964-09-08 Eastman Kodak Co Photographic elements and processes using splittable couplers
BE591444A (en) * 1959-04-06
BE603747A (en) * 1960-05-13
US3450536A (en) * 1961-03-24 1969-06-17 Eg & G Inc Silver halide photographic film having increased exposure-response characteristics
US3227550A (en) * 1962-09-07 1966-01-04 Eastman Kodak Co Photographic color reproduction process and element
US3364022A (en) * 1963-04-01 1968-01-16 Eastman Kodak Co Direct positive photographic color reproduction process and element utilizing thio-substituted hydroquinones as development inhibitors
US3243294A (en) * 1963-11-06 1966-03-29 Eastman Kodak Co Photographic direct-positive color process

Also Published As

Publication number Publication date
BE733342A (en) 1969-11-03
FR2008905A1 (en) 1970-01-30
JPS493843B1 (en) 1974-01-29
US3620747A (en) 1971-11-16
DE1925359A1 (en) 1970-09-10

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee