GB1074470A - Photographic colour materials for the silver dyestuff bleaching process - Google Patents

Photographic colour materials for the silver dyestuff bleaching process

Info

Publication number
GB1074470A
GB1074470A GB44610/65A GB4461065A GB1074470A GB 1074470 A GB1074470 A GB 1074470A GB 44610/65 A GB44610/65 A GB 44610/65A GB 4461065 A GB4461065 A GB 4461065A GB 1074470 A GB1074470 A GB 1074470A
Authority
GB
United Kingdom
Prior art keywords
silver
oct
photographic colour
dye
bleaching process
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
GB44610/65A
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.)
BASF Schweiz AG
Original Assignee
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
Application filed by Ciba AG filed Critical Ciba AG
Publication of GB1074470A publication Critical patent/GB1074470A/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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S430/00—Radiation imagery chemistry: process, composition, or product thereof
    • Y10S430/134—Brightener containing

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)

Abstract

1,074,470. Silver-dye-bleach materials. CIBA Ltd. Oct. 21, 1965 [Oct. 22, 1964], No. 44610/65. Heading G2C. A photographic colour material for the silver dye-bleach process comprises two silver halide emulsion layers containing dyestuff bleachable in the said process by metallic silver and a layer free from said dyestuffs and silver halide which contains a dyestuff bleaching catalyst free from acid groups imparting solubility in water and containing at least one basic nitrogen atom e. g. catalysts of the formula:- where R is aryl, alkyl, cycloalkyl or a heterocyclic group such as furanyl or together complete a fused on carbocyclic ring. The group R may contain alkyl, alkoxy or halogen substituents. The catalyst may be in a separating layer or a yellow filter layer.
GB44610/65A 1964-10-22 1965-10-21 Photographic colour materials for the silver dyestuff bleaching process Expired GB1074470A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1371964A CH439963A (en) 1964-10-22 1964-10-22 Photographic material for the silver dye bleaching process

Publications (1)

Publication Number Publication Date
GB1074470A true GB1074470A (en) 1967-07-05

Family

ID=4394732

Family Applications (1)

Application Number Title Priority Date Filing Date
GB44610/65A Expired GB1074470A (en) 1964-10-22 1965-10-21 Photographic colour materials for the silver dyestuff bleaching process

Country Status (8)

Country Link
US (1) US3443949A (en)
AT (1) AT260690B (en)
BE (1) BE671100A (en)
CH (1) CH439963A (en)
ES (1) ES318747A1 (en)
FR (1) FR1450272A (en)
GB (1) GB1074470A (en)
NL (1) NL6513638A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH508226A (en) * 1969-03-13 1971-05-31 Ciba Geigy Ag Use of quinoxalines as color bleaching catalysts

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2410025A (en) * 1936-12-14 1946-10-29 Chromogen Inc Production of colored photographic pictures
BE626198A (en) * 1961-12-20

Also Published As

Publication number Publication date
ES318747A1 (en) 1966-06-01
BE671100A (en) 1966-04-19
AT260690B (en) 1968-03-11
CH439963A (en) 1967-07-15
FR1450272A (en) 1966-05-06
NL6513638A (en) 1966-04-25
US3443949A (en) 1969-05-13

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