FR2171864A1 - Developer compsn - contg sulphones - Google Patents

Developer compsn - contg sulphones

Info

Publication number
FR2171864A1
FR2171864A1 FR7204655A FR7204655A FR2171864A1 FR 2171864 A1 FR2171864 A1 FR 2171864A1 FR 7204655 A FR7204655 A FR 7204655A FR 7204655 A FR7204655 A FR 7204655A FR 2171864 A1 FR2171864 A1 FR 2171864A1
Authority
FR
France
Prior art keywords
sulphones
contg
developer
compsn
developer compsn
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.)
Withdrawn
Application number
FR7204655A
Other languages
French (fr)
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
Priority to FR7204655A priority Critical patent/FR2171864A1/en
Publication of FR2171864A1 publication Critical patent/FR2171864A1/en
Withdrawn legal-status Critical Current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
    • G03C5/00—Photographic processes or agents therefor; Regeneration of such processing agents
    • G03C5/26—Processes using silver-salt-containing photosensitive materials or agents therefor
    • G03C5/29—Development processes or agents therefor
    • G03C5/305—Additives other than developers

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)

Abstract

The half tone dot quality of photographic products for lithographic processes is improved by incorporating a sulphone into the developer. The sulphone is pref. trimethylene trisulphone or 2,5-dihydrothiophene 1,1,-dioxide. The developer is p-dihydroxquinone.
FR7204655A 1972-02-11 1972-02-11 Developer compsn - contg sulphones Withdrawn FR2171864A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7204655A FR2171864A1 (en) 1972-02-11 1972-02-11 Developer compsn - contg sulphones

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7204655A FR2171864A1 (en) 1972-02-11 1972-02-11 Developer compsn - contg sulphones

Publications (1)

Publication Number Publication Date
FR2171864A1 true FR2171864A1 (en) 1973-09-28

Family

ID=9093372

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7204655A Withdrawn FR2171864A1 (en) 1972-02-11 1972-02-11 Developer compsn - contg sulphones

Country Status (1)

Country Link
FR (1) FR2171864A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0501546A1 (en) * 1991-02-26 1992-09-02 Agfa-Gevaert N.V. High contrast developer containing an aprotic solvent

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0501546A1 (en) * 1991-02-26 1992-09-02 Agfa-Gevaert N.V. High contrast developer containing an aprotic solvent

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Legal Events

Date Code Title Description
ST Notification of lapse