GB1089991A - Colour reversal process - Google Patents

Colour reversal process

Info

Publication number
GB1089991A
GB1089991A GB46674/64A GB4667464A GB1089991A GB 1089991 A GB1089991 A GB 1089991A GB 46674/64 A GB46674/64 A GB 46674/64A GB 4667464 A GB4667464 A GB 4667464A GB 1089991 A GB1089991 A GB 1089991A
Authority
GB
United Kingdom
Prior art keywords
colour
sensitive
layer
silver halide
reversal
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
GB46674/64A
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 GB1089991A publication Critical patent/GB1089991A/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
    • G03C5/00—Photographic processes or agents therefor; Regeneration of such processing agents
    • G03C5/26—Processes using silver-salt-containing photosensitive materials or agents therefor
    • G03C5/50—Reversal development; Contact processes
    • 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
    • G03C7/407—Development processes or agents therefor
    • G03C7/413—Developers

Abstract

1,089,991. A colour reversal process. EASTMAN KODAK CO. Nov. 16, 1964 [Nov. 14, 1963], No.46674/64. Heading G2C. A colour reversal process comprises (i) exposing a photographic silver halide material comprising at least two emulsion layers the outermost emulsion layer being sensitive to a part of the region of the spectrum to which the next inner emulsion layer is sensitive (ii) black and white developing the emulsion layers (iii) reversal re-exposing the outermost layer only and colour developing said layer in the presence of a colour coupler and (iv) treating the material with an aqueous solution containing a silver halide nucleating boron compound and at the same time or thereafter with an aqueous alkaline solution containing a silver halide developing agent which is a 1, 4-dihydroxy benzene soluble in the said solution and having a side chain containing at least 4 C atoms substituted in the nucleus so as to reduce to silver only the nucleated silver halide in the outer emulsion layer. The inner emulsion layer may be subsequently colour developed. The process is applicable to red, green and bluesensitive colour materials in which the red and blue sensitive emulsions are reversal re-exposed and colour developed before treatment of the material with the nucleating agent. Either the red-sensitive or the blue-sensitive layer may be outermost. The boron nucleating agents and 1,4-dihydroxy benzene-developers are as described in Specification 1, 089, 992.
GB46674/64A 1963-11-14 1964-11-16 Colour reversal process Expired GB1089991A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US323586A US3266895A (en) 1963-11-14 1963-11-14 Method for processing multilayer color film

Publications (1)

Publication Number Publication Date
GB1089991A true GB1089991A (en) 1967-11-08

Family

ID=23259842

Family Applications (2)

Application Number Title Priority Date Filing Date
GB46674/64A Expired GB1089991A (en) 1963-11-14 1964-11-16 Colour reversal process
GB56422/66A Expired GB1089992A (en) 1963-11-14 1964-11-16 Photographic nucleating and developing solution

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB56422/66A Expired GB1089992A (en) 1963-11-14 1964-11-16 Photographic nucleating and developing solution

Country Status (13)

Country Link
US (1) US3266895A (en)
AT (2) AT269647B (en)
BE (1) BE655631A (en)
BR (1) BR6462432D0 (en)
CH (1) CH442005A (en)
DE (1) DE1291624B (en)
DK (1) DK120880B (en)
ES (1) ES305186A1 (en)
FR (1) FR1413697A (en)
GB (2) GB1089991A (en)
MY (2) MY6900024A (en)
NL (1) NL6413237A (en)
SE (1) SE333687B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3607345A (en) * 1958-04-26 1971-09-21 Eastman Kodak Co Process for coating photographic emulsion layers
US3650748A (en) * 1968-11-22 1972-03-21 Eastman Kodak Co Photographic reproduction using novel physical developers

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2865747A (en) * 1955-12-22 1958-12-23 Eastman Kodak Co Photographic color development process
BE573379A (en) * 1957-11-29
BE634229A (en) * 1962-07-11

Also Published As

Publication number Publication date
CH442005A (en) 1967-08-15
MY6900025A (en) 1969-12-31
GB1089992A (en) 1967-11-08
AT273669B (en) 1969-08-25
US3266895A (en) 1966-08-16
MY6900024A (en) 1969-12-31
BE655631A (en) 1965-03-01
ES305186A1 (en) 1965-03-01
FR1413697A (en) 1965-10-08
DK120880B (en) 1971-07-26
BR6462432D0 (en) 1973-09-11
SE333687B (en) 1971-03-22
DE1291624B (en) 1969-03-27
NL6413237A (en) 1965-05-17
AT269647B (en) 1969-03-25

Similar Documents

Publication Publication Date Title
GB1350249A (en) Colour photographic silver halide materials
GB634169A (en) Improvements in or relating to the production of corrected photographic colour-component
GB1152428A (en) Hardening of Gelatin containing Photographic Materials
GB1472001A (en) Colour photographic silver halide multilayer material with improved colour density
GB1421126A (en) Processing silver halide photographic materials
GB581772A (en) Improvements in photographic processes
GB1089991A (en) Colour reversal process
GB507211A (en) Coloured photographic multilayer material
GB637879A (en) Method of color correction for photographic multi-layer negative color film
GB804662A (en) Improvements in sensitive materials for colour photography
GB666107A (en) Improvements in colour photography
GB1444463A (en) Photographic silver halide colour development process
GB562019A (en) Improvements in sensitive colour photographic materials
GB987634A (en) Improved masking film
GB668642A (en) Improvements in colour photographic processes and materials
US2885288A (en) Colour photographic process
GB507009A (en) Improved photographic material for colour photography
GB1085631A (en) Photographic colour processes
GB1318624A (en) Sensitive photographic materials
GB1072915A (en) Fluorescent brightening agents in colour print materials
GB677588A (en) Improvements in colour photographic processes and materials therefor
GB1378171A (en) Process for producing photogrpahic silver images
ES356582A1 (en) Improvements in the photographic characteristics of silver halide emulsions
GB521961A (en) Improvements in light-sensitive materials and processes of colour photography
GB1146067A (en) Processing of colour photographic materials