GB511770A - Improvements in colour photography - Google Patents

Improvements in colour photography

Info

Publication number
GB511770A
GB511770A GB1792/38A GB179238A GB511770A GB 511770 A GB511770 A GB 511770A GB 1792/38 A GB1792/38 A GB 1792/38A GB 179238 A GB179238 A GB 179238A GB 511770 A GB511770 A GB 511770A
Authority
GB
United Kingdom
Prior art keywords
colour
development
dyestuff
developer
silver
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
GB1792/38A
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.)
IG Farbenindustrie AG
Original Assignee
IG Farbenindustrie 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 IG Farbenindustrie AG filed Critical IG Farbenindustrie AG
Publication of GB511770A publication Critical patent/GB511770A/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
    • G03C7/30—Colour processes using colour-coupling substances; Materials therefor; Preparing or processing such materials

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)
GB1792/38A 1937-01-21 1938-01-19 Improvements in colour photography Expired GB511770A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEI0056935 1937-01-21

Publications (1)

Publication Number Publication Date
GB511770A true GB511770A (en) 1939-08-24

Family

ID=7194471

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1792/38A Expired GB511770A (en) 1937-01-21 1938-01-19 Improvements in colour photography

Country Status (4)

Country Link
US (1) US2268630A (en:Method)
BE (1) BE425838A (en:Method)
FR (1) FR832245A (en:Method)
GB (1) GB511770A (en:Method)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE480409A (en:Method) * 1947-02-17
FR965348A (en:Method) * 1947-05-07 1950-09-08
US2623822A (en) * 1949-12-06 1952-12-30 Gen Aniline & Film Corp Method of obtaining multicolored photographic images of increased color density
US2704710A (en) * 1950-04-18 1955-03-22 Gen Aniline & Film Corp Precipitation of azo dyes in silver halide emulsions by means of guanidine and biguanide compounds containing long alkyl chains
BE519219A (en:Method) * 1952-04-15

Also Published As

Publication number Publication date
US2268630A (en) 1942-01-06
BE425838A (en:Method)
FR832245A (fr) 1938-09-23

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