GB664836A - Improvements in photographic imbibition dye printing processes - Google Patents

Improvements in photographic imbibition dye printing processes

Info

Publication number
GB664836A
GB664836A GB25826/48A GB2582648A GB664836A GB 664836 A GB664836 A GB 664836A GB 25826/48 A GB25826/48 A GB 25826/48A GB 2582648 A GB2582648 A GB 2582648A GB 664836 A GB664836 A GB 664836A
Authority
GB
United Kingdom
Prior art keywords
carbethoxy
methyl
photographic
prepared
printing processes
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
GB25826/48A
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.)
Kodak Ltd
Original Assignee
Kodak Ltd
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 Kodak Ltd filed Critical Kodak Ltd
Publication of GB664836A publication Critical patent/GB664836A/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
    • G03C7/22—Subtractive cinematographic processes; Materials therefor; Preparing or processing such materials
    • G03C7/25—Dye-imbibition processes; Materials therefor; Preparing or processing such materials

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Coloring (AREA)

Abstract

1 - Carbethoxy - 3 - methyl - 6 - bromoanthrapyridone is prepared by heating together 1-methylamino-4-bromoanthraquinone, acid-free ethyl malonate, and sodium acetate.ALSO:1 - Carbethoxy - 3 - methyl - 6 - (41 - chloranilino)-anthrapyridone is prepared by heating together 1 - carbethoxy - 3 - methyl - 4 - bromo-anthrapyridine, p-chloroaniline, sodium acetate, and copper acetate. 1 - Carbethoxy - 3 - methyl - 6 - (41 - chloro - 21 - sulphoanilino)-anthrapyridine (ammonium salt) is prepared by treating 1-carbethoxy-3-methyl-6 - (41 - chloranilino) - anthrapyridone with sulphuric acid and oleum, allowing to stand, pouring into cold water, and neutralizing with ammonium hydroxide.
GB25826/48A 1947-10-02 1948-10-04 Improvements in photographic imbibition dye printing processes Expired GB664836A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US777494A US2537924A (en) 1947-10-02 1947-10-02 Photographic-imbibition dye printing process

Publications (1)

Publication Number Publication Date
GB664836A true GB664836A (en) 1952-01-16

Family

ID=25110413

Family Applications (1)

Application Number Title Priority Date Filing Date
GB25826/48A Expired GB664836A (en) 1947-10-02 1948-10-04 Improvements in photographic imbibition dye printing processes

Country Status (2)

Country Link
US (1) US2537924A (en)
GB (1) GB664836A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2841078A (en) * 1953-03-02 1958-07-01 Comstock & Wescott Photographic color correction in imbibition printing
US3835781A (en) * 1972-03-13 1974-09-17 J Erdell Method for obtaining photographic reproductions in color

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1517200A (en) * 1920-08-18 1924-11-25 Dye Impression Photos Ltd Process of dye transfer printing from photographic negatives
US1484346A (en) * 1921-04-14 1924-02-19 Karl Werth Process for producing negatives from nontransparent originals for use in preparing printing plates
US1926556A (en) * 1930-01-25 1933-09-12 Ig Farbenindustrie Ag Dyeing wool
BE412588A (en) * 1934-12-08

Also Published As

Publication number Publication date
US2537924A (en) 1951-01-09

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