FR1464177A - Photographic articles for the silver discoloration process - Google Patents

Photographic articles for the silver discoloration process

Info

Publication number
FR1464177A
FR1464177A FR39803A FR39803A FR1464177A FR 1464177 A FR1464177 A FR 1464177A FR 39803 A FR39803 A FR 39803A FR 39803 A FR39803 A FR 39803A FR 1464177 A FR1464177 A FR 1464177A
Authority
FR
France
Prior art keywords
silver discoloration
discoloration process
photographic articles
photographic
articles
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
FR39803A
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 CH1550664A external-priority patent/CH448739A/en
Application filed by Ciba Geigy AG, Ciba AG filed Critical Ciba Geigy AG
Priority to FR39803A priority Critical patent/FR1464177A/en
Application granted granted Critical
Publication of FR1464177A publication Critical patent/FR1464177A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR39803A 1964-12-02 1965-11-25 Photographic articles for the silver discoloration process Expired FR1464177A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR39803A FR1464177A (en) 1964-12-02 1965-11-25 Photographic articles for the silver discoloration process

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH1550664A CH448739A (en) 1964-12-02 1964-12-02 Photographic material for the silver dye bleaching process
FR39803A FR1464177A (en) 1964-12-02 1965-11-25 Photographic articles for the silver discoloration process

Publications (1)

Publication Number Publication Date
FR1464177A true FR1464177A (en) 1966-07-22

Family

ID=25716543

Family Applications (1)

Application Number Title Priority Date Filing Date
FR39803A Expired FR1464177A (en) 1964-12-02 1965-11-25 Photographic articles for the silver discoloration process

Country Status (1)

Country Link
FR (1) FR1464177A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2001933A1 (en) * 1968-02-15 1969-10-03 Ciba Geigy

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2001933A1 (en) * 1968-02-15 1969-10-03 Ciba Geigy

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