DE69324083T2 - Direkt-positives photographisches Silberhalogenidmaterial und Verfahren zur Herstellung eines kontrastreichen positiven Bildes unter Verwendung desselben - Google Patents

Direkt-positives photographisches Silberhalogenidmaterial und Verfahren zur Herstellung eines kontrastreichen positiven Bildes unter Verwendung desselben

Info

Publication number
DE69324083T2
DE69324083T2 DE69324083T DE69324083T DE69324083T2 DE 69324083 T2 DE69324083 T2 DE 69324083T2 DE 69324083 T DE69324083 T DE 69324083T DE 69324083 T DE69324083 T DE 69324083T DE 69324083 T2 DE69324083 T2 DE 69324083T2
Authority
DE
Germany
Prior art keywords
producing
silver halide
same
high contrast
halide photographic
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 - Fee Related
Application number
DE69324083T
Other languages
English (en)
Other versions
DE69324083D1 (de
Inventor
Naoki Obi
Kiyoshi Suematsu
Yasuhiko Kojima
Masatoshi Katayama
Yasuo Shigemitsu
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.)
DIC Corp
Original Assignee
Dainippon Ink and Chemicals Co Ltd
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
Priority claimed from JP4512893A external-priority patent/JP3298209B2/ja
Application filed by Dainippon Ink and Chemicals Co Ltd filed Critical Dainippon Ink and Chemicals Co Ltd
Application granted granted Critical
Publication of DE69324083D1 publication Critical patent/DE69324083D1/de
Publication of DE69324083T2 publication Critical patent/DE69324083T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • G03C1/485—Direct positive emulsions
    • G03C1/48515—Direct positive emulsions prefogged
    • G03C1/48523—Direct positive emulsions prefogged characterised by the desensitiser

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)
DE69324083T 1992-08-20 1993-08-19 Direkt-positives photographisches Silberhalogenidmaterial und Verfahren zur Herstellung eines kontrastreichen positiven Bildes unter Verwendung desselben Expired - Fee Related DE69324083T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP22140492 1992-08-20
JP4512893A JP3298209B2 (ja) 1992-03-31 1993-03-05 直接ポジ用ハロゲン化銀写真感光材料およびそれを用いたポジ画像形成方法

Publications (2)

Publication Number Publication Date
DE69324083D1 DE69324083D1 (de) 1999-04-29
DE69324083T2 true DE69324083T2 (de) 1999-07-15

Family

ID=26385087

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69324083T Expired - Fee Related DE69324083T2 (de) 1992-08-20 1993-08-19 Direkt-positives photographisches Silberhalogenidmaterial und Verfahren zur Herstellung eines kontrastreichen positiven Bildes unter Verwendung desselben

Country Status (3)

Country Link
US (1) US5362621A (de)
EP (1) EP0585745B1 (de)
DE (1) DE69324083T2 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10257939A1 (de) * 2002-12-12 2004-06-24 Herbert Hafner Fotografisches Entwicklerbad

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5372911A (en) * 1991-06-13 1994-12-13 Dainippon Ink And Chemicals, Inc. Process of forming super high-contrast negative images and silver halide photographic material and developer being used therefor
US5536634A (en) * 1994-09-30 1996-07-16 Eastman Kodak Company Silver halide emulsions spectrally sensitized in the presence of low N-alkyl pyridinium ions
US5589323A (en) * 1996-01-23 1996-12-31 Sun Chemical Corporation Chemically stable ascorbate-based photographic developer and imaging process

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB875887A (en) * 1959-01-21 1961-08-23 Ilford Ltd Improvements in or relating to direct positive emulsions
JPS5647544B2 (de) * 1973-03-27 1981-11-10
US3938997A (en) * 1975-03-28 1976-02-17 Minnesota Mining And Manufacturing Company Rapid access, air stable, regenerable iron chelate developer solutions
US4273862A (en) * 1977-06-11 1981-06-16 Mitsubishi Paper Mills, Ltd. Direct-positive silver halide photographic sensitive materials
JPS585420B2 (ja) * 1977-06-11 1983-01-31 三菱製紙株式会社 直接ポジ用ハロゲン化銀写真感光材料
JPS55144238A (en) * 1979-04-27 1980-11-11 Fuji Photo Film Co Ltd Direct positive type silver halide photosensitive material
US5284733A (en) * 1990-10-03 1994-02-08 Dainippon Ink And Chemicals, Inc. High-contrast image forming process
US5372911A (en) * 1991-06-13 1994-12-13 Dainippon Ink And Chemicals, Inc. Process of forming super high-contrast negative images and silver halide photographic material and developer being used therefor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10257939A1 (de) * 2002-12-12 2004-06-24 Herbert Hafner Fotografisches Entwicklerbad

Also Published As

Publication number Publication date
EP0585745A3 (en) 1994-08-24
EP0585745B1 (de) 1999-03-24
US5362621A (en) 1994-11-08
EP0585745A2 (de) 1994-03-09
DE69324083D1 (de) 1999-04-29

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee