FR1469370A - Photographic preparations for the silver discoloration process - Google Patents

Photographic preparations for the silver discoloration process

Info

Publication number
FR1469370A
FR1469370A FR49691A FR49691A FR1469370A FR 1469370 A FR1469370 A FR 1469370A FR 49691 A FR49691 A FR 49691A FR 49691 A FR49691 A FR 49691A FR 1469370 A FR1469370 A FR 1469370A
Authority
FR
France
Prior art keywords
silver discoloration
discoloration process
photographic
preparations
photographic preparations
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
FR49691A
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
Priority claimed from CH242665A external-priority patent/CH449423A/en
Application filed by Ciba Geigy AG, Ciba AG filed Critical Ciba Geigy AG
Priority to FR49691A priority Critical patent/FR1469370A/en
Application granted granted Critical
Publication of FR1469370A publication Critical patent/FR1469370A/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
    • G03C7/29—Azo dyes therefor
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B43/00—Preparation of azo dyes from other azo compounds
    • C09B43/12—Preparation of azo dyes from other azo compounds by acylation of amino groups
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B43/00—Preparation of azo dyes from other azo compounds
    • C09B43/12—Preparation of azo dyes from other azo compounds by acylation of amino groups
    • C09B43/136—Preparation of azo dyes from other azo compounds by acylation of amino groups with polyfunctional acylating agents
    • C09B43/145—Preparation of azo dyes from other azo compounds by acylation of amino groups with polyfunctional acylating agents with polycarboxylic acids
FR49691A 1965-02-22 1966-02-15 Photographic preparations for the silver discoloration process Expired FR1469370A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR49691A FR1469370A (en) 1965-02-22 1966-02-15 Photographic preparations for the silver discoloration process

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH242665A CH449423A (en) 1965-02-22 1965-02-22 Photographic material for the silver dye bleaching process
FR49691A FR1469370A (en) 1965-02-22 1966-02-15 Photographic preparations for the silver discoloration process

Publications (1)

Publication Number Publication Date
FR1469370A true FR1469370A (en) 1967-02-10

Family

ID=25690419

Family Applications (1)

Application Number Title Priority Date Filing Date
FR49691A Expired FR1469370A (en) 1965-02-22 1966-02-15 Photographic preparations for the silver discoloration process

Country Status (1)

Country Link
FR (1) FR1469370A (en)

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