FR1305111A - Photographic layers for the silver discoloration process - Google Patents

Photographic layers for the silver discoloration process

Info

Publication number
FR1305111A
FR1305111A FR878338A FR878338A FR1305111A FR 1305111 A FR1305111 A FR 1305111A FR 878338 A FR878338 A FR 878338A FR 878338 A FR878338 A FR 878338A FR 1305111 A FR1305111 A FR 1305111A
Authority
FR
France
Prior art keywords
photographic layers
silver discoloration
discoloration process
silver
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
Application number
FR878338A
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 CH1351560A external-priority patent/CH388106A/en
Application filed by Ciba Geigy AG, Ciba AG filed Critical Ciba Geigy AG
Priority to FR878338A priority Critical patent/FR1305111A/en
Application granted granted Critical
Publication of FR1305111A publication Critical patent/FR1305111A/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
    • C09B43/14—Preparation of azo dyes from other azo compounds by acylation of amino groups with polyfunctional acylating agents with phosgene or thiophosgene
    • 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)
FR878338A 1960-12-01 1961-11-08 Photographic layers for the silver discoloration process Expired FR1305111A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR878338A FR1305111A (en) 1960-12-01 1961-11-08 Photographic layers for the silver discoloration process

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH1351560A CH388106A (en) 1960-12-01 1960-12-01 Photographic layer for the silver dye bleaching process
FR878338A FR1305111A (en) 1960-12-01 1961-11-08 Photographic layers for the silver discoloration process

Publications (1)

Publication Number Publication Date
FR1305111A true FR1305111A (en) 1962-09-28

Family

ID=25712434

Family Applications (1)

Application Number Title Priority Date Filing Date
FR878338A Expired FR1305111A (en) 1960-12-01 1961-11-08 Photographic layers for the silver discoloration process

Country Status (1)

Country Link
FR (1) FR1305111A (en)

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