FR1449357A - Photographic articles for the silver discoloration process - Google Patents
Photographic articles for the silver discoloration processInfo
- 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
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)
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)
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 |
-
1965
- 1965-10-07 FR FR33998A patent/FR1449357A/en not_active Expired
Cited By (3)
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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