EP0317886A3 - Gradation-variable black and white paper - Google Patents

Gradation-variable black and white paper Download PDF

Info

Publication number
EP0317886A3
EP0317886A3 EP19880119074 EP88119074A EP0317886A3 EP 0317886 A3 EP0317886 A3 EP 0317886A3 EP 19880119074 EP19880119074 EP 19880119074 EP 88119074 A EP88119074 A EP 88119074A EP 0317886 A3 EP0317886 A3 EP 0317886A3
Authority
EP
European Patent Office
Prior art keywords
gradation
white paper
variable black
black
variable
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.)
Granted
Application number
EP19880119074
Other languages
German (de)
Other versions
EP0317886A2 (en
EP0317886B1 (en
Inventor
Walter Dr. Patzold
Helmut Dr. Kampfer
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.)
Agfa Gevaert AG
Original Assignee
Agfa Gevaert AG
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 Agfa Gevaert AG filed Critical Agfa Gevaert AG
Publication of EP0317886A2 publication Critical patent/EP0317886A2/en
Publication of EP0317886A3 publication Critical patent/EP0317886A3/en
Application granted granted Critical
Publication of EP0317886B1 publication Critical patent/EP0317886B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • G03C1/06—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein with non-macromolecular additives
    • G03C1/08—Sensitivity-increasing substances
    • G03C1/10—Organic substances
    • G03C1/12—Methine and polymethine dyes
    • 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
    • G03C1/035—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein characterised by the crystal form or composition, e.g. mixed grain
    • 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
    • G03C1/06—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein with non-macromolecular additives
    • G03C1/34—Fog-inhibitors; Stabilisers; Agents inhibiting latent image regression
    • G03C1/346—Organic derivatives of bivalent sulfur, selenium or tellurium
    • 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
    • G03C1/035—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein characterised by the crystal form or composition, e.g. mixed grain
    • G03C2001/03564—Mixed grains or mixture of emulsions

Landscapes

  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)
  • Paper (AREA)
  • Ink Jet Recording Methods And Recording Media Thereof (AREA)
  • Plural Heterocyclic Compounds (AREA)
EP88119074A 1987-11-24 1988-11-17 Gradation-variable black and white paper Expired - Lifetime EP0317886B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19873739766 DE3739766A1 (en) 1987-11-24 1987-11-24 GRADATION VARIABLE SW PAPER
DE3739766 1987-11-24

Publications (3)

Publication Number Publication Date
EP0317886A2 EP0317886A2 (en) 1989-05-31
EP0317886A3 true EP0317886A3 (en) 1990-12-27
EP0317886B1 EP0317886B1 (en) 1994-03-16

Family

ID=6341134

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88119074A Expired - Lifetime EP0317886B1 (en) 1987-11-24 1988-11-17 Gradation-variable black and white paper

Country Status (5)

Country Link
US (1) US5006455A (en)
EP (1) EP0317886B1 (en)
JP (1) JP2622407B2 (en)
DE (2) DE3739766A1 (en)
ES (1) ES2050139T3 (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0373339B1 (en) * 1988-11-15 1994-05-04 Agfa-Gevaert AG Silver halide recording material
DE58907695D1 (en) * 1989-01-07 1994-06-23 Agfa Gevaert Ag Silver halide recording material.
JPH046550A (en) * 1990-04-24 1992-01-10 Mitsubishi Paper Mills Ltd Silver halide photographic material
JP2597431B2 (en) * 1991-04-24 1997-04-09 三菱製紙株式会社 Silver halide photographic material
DE69224837T2 (en) * 1992-10-30 1998-10-08 Agfa Gevaert Nv Photographic material containing a mixture of silver halide emulsions
DE69327635T2 (en) * 1992-11-19 2000-08-10 Eastman Kodak Co., Rochester Dye compounds and photographic elements containing them
DE69329964T2 (en) * 1992-11-19 2001-09-13 Eastman Kodak Co., Rochester Furan or pyrrole substituted dye compounds and photographic silver halide elements containing such dyes
JP3588160B2 (en) * 1994-05-18 2004-11-10 イーストマン コダック カンパニー Blue sensitizing dye having heterocyclic substituent
JPH07325361A (en) * 1994-06-02 1995-12-12 Mitsubishi Paper Mills Ltd Silver halide photographic sensitive material
DE19601141C2 (en) * 1995-07-31 1998-08-20 Agfa Gevaert Ag Gradation-variable black and white paper
GB9626281D0 (en) * 1996-12-18 1997-02-05 Kodak Ltd Photographic high contrast silver halide material

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3305362A (en) * 1962-03-08 1967-02-21 Agfa Ag Process for developing silver halide and compositions therefor
EP0040771A1 (en) * 1980-05-28 1981-12-02 Agfa-Gevaert AG Photographic material and its use in the formation of images
DE3028167A1 (en) * 1980-07-25 1982-04-01 Agfa-Gevaert Ag, 5090 Leverkusen Variable contrast photographic printing paper - has two layer emulsion with different colour gradations
DE3635388A1 (en) * 1985-10-22 1987-04-23 Konishiroku Photo Ind LIGHT SENSITIVE PHOTOGRAPHIC SILVER HALOGENIDE MATERIAL
DE3605713A1 (en) * 1986-02-22 1987-08-27 Agfa Gevaert Ag COLOR PHOTOGRAPHIC RECORDING MATERIAL

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA539568A (en) * 1957-04-16 D. Hill George Prevention of dye wandering in photographic emulsions
GB494088A (en) * 1937-03-18 1938-10-18 Frank Forster Renwick Improvements in or relating to photographic printing processes and materials
GB561875A (en) * 1942-12-03 1944-06-08 John David Kendall Improvements in or relating to photographic materials
FR1222449A (en) * 1958-07-31 1960-06-09 Kodak Pathe New photographic silver halide emulsion
BE595325A (en) * 1960-09-23
GB1225241A (en) * 1967-04-21 1971-03-17
GB1298302A (en) * 1971-04-05 1972-11-29 Agfa Gevaert Ag Process for the photographic production of equidensities

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3305362A (en) * 1962-03-08 1967-02-21 Agfa Ag Process for developing silver halide and compositions therefor
EP0040771A1 (en) * 1980-05-28 1981-12-02 Agfa-Gevaert AG Photographic material and its use in the formation of images
DE3028167A1 (en) * 1980-07-25 1982-04-01 Agfa-Gevaert Ag, 5090 Leverkusen Variable contrast photographic printing paper - has two layer emulsion with different colour gradations
DE3635388A1 (en) * 1985-10-22 1987-04-23 Konishiroku Photo Ind LIGHT SENSITIVE PHOTOGRAPHIC SILVER HALOGENIDE MATERIAL
DE3605713A1 (en) * 1986-02-22 1987-08-27 Agfa Gevaert Ag COLOR PHOTOGRAPHIC RECORDING MATERIAL

Also Published As

Publication number Publication date
DE3739766A1 (en) 1989-06-08
US5006455A (en) 1991-04-09
JPH01167745A (en) 1989-07-03
ES2050139T3 (en) 1994-05-16
JP2622407B2 (en) 1997-06-18
EP0317886A2 (en) 1989-05-31
EP0317886B1 (en) 1994-03-16
DE3888461D1 (en) 1994-04-21

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