FR1449357A - Photographic articles for the silver discoloration process - Google Patents

Photographic articles for the silver discoloration process

Info

Publication number
FR1449357A
FR1449357A FR33998A FR33998A FR1449357A FR 1449357 A FR1449357 A FR 1449357A FR 33998 A FR33998 A FR 33998A FR 33998 A FR33998 A FR 33998A FR 1449357 A FR1449357 A FR 1449357A
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
FR33998A
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 CH1310864A external-priority patent/CH448740A/en
Application filed by Ciba Geigy AG, Ciba AG filed Critical Ciba Geigy AG
Priority to FR33998A priority Critical patent/FR1449357A/en
Application granted granted Critical
Publication of FR1449357A publication Critical patent/FR1449357A/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
    • C09B35/00—Disazo and polyazo dyes of the type A<-D->B prepared by diazotising and coupling
    • C09B35/02—Disazo dyes
    • C09B35/039—Disazo dyes characterised by the tetrazo component
    • C09B35/28—Disazo dyes characterised by the tetrazo component the tetrazo component containing two aryl nuclei linked by at least one of the groups —CON<, —SO2N<, —SO2—, or —SO2—O—
    • 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
    • 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)
FR33998A 1964-10-08 1965-10-07 Photographic articles for the silver discoloration process Expired FR1449357A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR33998A FR1449357A (en) 1964-10-08 1965-10-07 Photographic articles for the silver discoloration process

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH1310864A CH448740A (en) 1964-10-08 1964-10-08 Photographic material for the silver dye bleaching process
FR33998A FR1449357A (en) 1964-10-08 1965-10-07 Photographic articles for the silver discoloration process

Publications (1)

Publication Number Publication Date
FR1449357A true FR1449357A (en) 1966-08-12

Family

ID=25711551

Family Applications (1)

Application Number Title Priority Date Filing Date
FR33998A Expired FR1449357A (en) 1964-10-08 1965-10-07 Photographic articles for the silver discoloration process

Country Status (1)

Country Link
FR (1) FR1449357A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2132734A1 (en) * 1971-04-07 1972-11-24 Ciba Geigy Ag
US4051123A (en) * 1972-03-28 1977-09-27 Ciba-Geigy Ag Sulfonic-acid-group containing disazo dyestuffs
US4118232A (en) * 1971-04-07 1978-10-03 Ciba-Geigy Ag Photographic material containing sulphonic acid group containing disazo dyestuffs

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2132734A1 (en) * 1971-04-07 1972-11-24 Ciba Geigy Ag
US4118232A (en) * 1971-04-07 1978-10-03 Ciba-Geigy Ag Photographic material containing sulphonic acid group containing disazo dyestuffs
US4051123A (en) * 1972-03-28 1977-09-27 Ciba-Geigy Ag Sulfonic-acid-group containing disazo dyestuffs

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