GB1060241A - Dispersions of dye developers - Google Patents

Dispersions of dye developers

Info

Publication number
GB1060241A
GB1060241A GB8808/64A GB880864A GB1060241A GB 1060241 A GB1060241 A GB 1060241A GB 8808/64 A GB8808/64 A GB 8808/64A GB 880864 A GB880864 A GB 880864A GB 1060241 A GB1060241 A GB 1060241A
Authority
GB
United Kingdom
Prior art keywords
dispersion
water
sulphite
dye developer
methyl
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
GB8808/64A
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 GB1060241A publication Critical patent/GB1060241A/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
    • 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
    • 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

Abstract

1,060,241. Dispersing dye developer solutions. EASTMAN KODAK CO. March 2, 1964 [March 1, 1963], No.8808/64. Heading G2C. A dispersion of a stabilized solution of a dye developer in a hydrophilic organic colloid is obtained by taking a solution of a dye developer in a water immiscible organic solvent having a boiling point of at least 175‹C. and dispersing it in a hydrophilic organic colloid and before and/or during and/or after forming the dispersion contacting the dye developer with a water-soluble sulphite e.g. an alkali metal or ammonium sulphite. The water-immiscible solvents specified are those listed in Specification 541, 589 and also guaiacol acetate, tetrahydrofurfuryl propionate; triethyl citrate, acetyl triethyl citrate, ditetrahydrofurfuryl adipate, N, N-dialkyl lauramides, N-lauroyl piperidine; N, N, N', N'-tetraethylphthalimide, 4-methyl-2-pentanol and 2, 4-di-n-amyl phenol. The water-immiscible solvent may be mixed with an auxiliary solvent e.g. alkyl alkanoates, butylalcohol, nitroethane, chloroform, methyl isobutyl ketone, #-ethoxyethylacetate, #-butoxy- #-ethoxyethylacetate, diethylene glycol monoacetate, #-methoxy methyl acetate, acetonyl acetone, cyclohexanone, triethyl phosphate, diacetone alcohol, diethylene glycol mono-methylether, ethylene glycol, dipropylene glycol, acetone, ethanol, acetonitrile, dimethyl formamide and dioxane. Specified hydrophilic colloids are gelatine, gelatine derivatives, polyvinyl alcohol and its water-soluble derivatives, copolymers of acrylamide and imidised acrylamide, albumin and cellulose derivatives. The sulphite may be added as an aqueous solution to a dispersion melt or the dispersion may be washed with aqueous sulphite. Dispersion may be facilitated with surface active agents e.g. sodium diisopropyl naphthalene sulphonate, sodium lauryl sulphonate, p-tert-octyl phenoxy diethoxyethyl sulphonate sodium salt, p-tert octyl phenoxy diethoxy ethyl sulphate ammonium salt, sodium N-methyl-N- oleyl taurate, diisobutyl-cresoxyethoxy ethyl dimethyl benzyl ammonium chloride and diisobutyl phenoxy ethoxy ethyl dimethyl benzyl ammonium chloride. The dispersions obtained may be used to form layers suitable for use in the materials of Specification 1, 03, 675.
GB8808/64A 1963-03-01 1964-03-02 Dispersions of dye developers Expired GB1060241A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US262167A US3287133A (en) 1963-03-01 1963-03-01 Photographic dye developer dispersions utilizing water-soluble sulfites

Publications (1)

Publication Number Publication Date
GB1060241A true GB1060241A (en) 1967-03-01

Family

ID=22996440

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8808/64A Expired GB1060241A (en) 1963-03-01 1964-03-02 Dispersions of dye developers

Country Status (4)

Country Link
US (1) US3287133A (en)
BE (1) BE644383A (en)
DE (1) DE1188944B (en)
GB (1) GB1060241A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1099416A (en) * 1965-01-25 1968-01-17 Agfa Gevaert Nv Method of incorporating photographic ingredients into a photographic colloid
US3630730A (en) * 1970-06-01 1971-12-28 Eastman Kodak Co Diffusion transfer processes and elements comprising dye developers and bis-sulfonyl alkane speed-increasing agents

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA606417A (en) * 1960-10-04 R. Blout Elkan Photographic products
US2360290A (en) * 1941-07-31 1944-10-10 Eastman Kodak Co Preventing formation of color fog in emulsions
DE1066092B (en) * 1954-03-09
US2983606A (en) * 1958-07-14 1961-05-09 Polaroid Corp Processes and products for forming photographic images in color

Also Published As

Publication number Publication date
BE644383A (en) 1964-06-15
DE1188944B (en) 1965-03-11
US3287133A (en) 1966-11-22

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