FR1450272A - Special catalysts for the photographic silver discoloration process - Google Patents

Special catalysts for the photographic silver discoloration process

Info

Publication number
FR1450272A
FR1450272A FR35347A FR35347A FR1450272A FR 1450272 A FR1450272 A FR 1450272A FR 35347 A FR35347 A FR 35347A FR 35347 A FR35347 A FR 35347A FR 1450272 A FR1450272 A FR 1450272A
Authority
FR
France
Prior art keywords
photographic silver
special catalysts
silver discoloration
discoloration process
catalysts
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
FR35347A
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.)
Novartis AG
BASF Schweiz AG
Original Assignee
Ciba Geigy AG
Ciba 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 Ciba Geigy AG, Ciba AG filed Critical Ciba Geigy AG
Application granted granted Critical
Publication of FR1450272A publication Critical patent/FR1450272A/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
    • G03C7/28—Silver dye bleach processes; Materials therefor; Preparing or processing such materials
    • 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
    • Y10S430/134—Brightener containing

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)
FR35347A 1964-10-22 1965-10-18 Special catalysts for the photographic silver discoloration process Expired FR1450272A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1371964A CH439963A (en) 1964-10-22 1964-10-22 Photographic material for the silver dye bleaching process

Publications (1)

Publication Number Publication Date
FR1450272A true FR1450272A (en) 1966-05-06

Family

ID=4394732

Family Applications (1)

Application Number Title Priority Date Filing Date
FR35347A Expired FR1450272A (en) 1964-10-22 1965-10-18 Special catalysts for the photographic silver discoloration process

Country Status (8)

Country Link
US (1) US3443949A (en)
AT (1) AT260690B (en)
BE (1) BE671100A (en)
CH (1) CH439963A (en)
ES (1) ES318747A1 (en)
FR (1) FR1450272A (en)
GB (1) GB1074470A (en)
NL (1) NL6513638A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH508226A (en) * 1969-03-13 1971-05-31 Ciba Geigy Ag Use of quinoxalines as color bleaching catalysts

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2410025A (en) * 1936-12-14 1946-10-29 Chromogen Inc Production of colored photographic pictures
BE626198A (en) * 1961-12-20

Also Published As

Publication number Publication date
US3443949A (en) 1969-05-13
AT260690B (en) 1968-03-11
NL6513638A (en) 1966-04-25
BE671100A (en) 1966-04-19
ES318747A1 (en) 1966-06-01
CH439963A (en) 1967-07-15
GB1074470A (en) 1967-07-05

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