GB1329874A - Photographic dye developer - Google Patents

Photographic dye developer

Info

Publication number
GB1329874A
GB1329874A GB1563971*[A GB1563971A GB1329874A GB 1329874 A GB1329874 A GB 1329874A GB 1563971 A GB1563971 A GB 1563971A GB 1329874 A GB1329874 A GB 1329874A
Authority
GB
United Kingdom
Prior art keywords
photographic
developers
methyl
optionally substituted
dye developer
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
GB1563971*[A
Other languages
English (en)
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.)
Eastman Kodak Co
Original Assignee
Eastman Kodak Co
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 Eastman Kodak Co filed Critical Eastman Kodak Co
Publication of GB1329874A publication Critical patent/GB1329874A/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
    • C09B23/00—Methine or polymethine dyes, e.g. cyanine dyes
    • C09B23/02—Methine or polymethine dyes, e.g. cyanine dyes the polymethine chain containing an odd number of >CH- or >C[alkyl]- groups
    • C09B23/06—Methine or polymethine dyes, e.g. cyanine dyes the polymethine chain containing an odd number of >CH- or >C[alkyl]- groups three >CH- groups, e.g. carbocyanines
    • 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
    • G03C8/00—Diffusion transfer processes or agents therefor; Photosensitive materials for such processes
    • G03C8/02—Photosensitive materials characterised by the image-forming section
    • G03C8/08—Photosensitive materials characterised by the image-forming section the substances transferred by diffusion consisting of organic compounds
    • G03C8/10—Photosensitive materials characterised by the image-forming section the substances transferred by diffusion consisting of organic compounds of dyes or their precursors
    • G03C8/12—Photosensitive materials characterised by the image-forming section the substances transferred by diffusion consisting of organic compounds of dyes or their precursors characterised by the releasing mechanism
    • G03C8/14—Oxidation of the chromogenic substances
    • G03C8/16—Oxidation of the chromogenic substances initially diffusible in alkaline environment
    • G03C8/18—Dye developers

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)
  • Indole Compounds (AREA)
GB1563971*[A 1970-05-18 1971-05-18 Photographic dye developer Expired GB1329874A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US3851070A 1970-05-18 1970-05-18

Publications (1)

Publication Number Publication Date
GB1329874A true GB1329874A (en) 1973-09-12

Family

ID=21900376

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1563971*[A Expired GB1329874A (en) 1970-05-18 1971-05-18 Photographic dye developer

Country Status (5)

Country Link
US (1) US3649266A (fr)
BE (1) BE767281A (fr)
CA (1) CA936530A (fr)
FR (1) FR2091606A5 (fr)
GB (1) GB1329874A (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3976489A (en) * 1972-03-24 1976-08-24 Polaroid Corporation Silver halide photographic products with semiconductor sensitizers
US4029503A (en) * 1973-03-28 1977-06-14 Konishiroku Photo Industry Co., Ltd. Diffusible-dye releasing type dyes which couple to form colorless products
GB1573134A (en) * 1976-06-02 1980-08-13 Gaf Corp Dyedeveloper diffusion transfer photographic element, process for its production, process of development of the element and composition
US7705150B2 (en) * 2004-02-04 2010-04-27 Biosearch Technologies, Inc. Cyanine dyes

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3146102A (en) * 1960-08-22 1964-08-25 Eastman Kodak Co Photographic multicolor diffusion transfer process using dye developers

Also Published As

Publication number Publication date
CA936530A (en) 1973-11-06
US3649266A (en) 1972-03-14
BE767281A (fr) 1971-10-18
FR2091606A5 (fr) 1972-01-14

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees