GB1234632A - - Google Patents

Info

Publication number
GB1234632A
GB1234632A GB1234632DA GB1234632A GB 1234632 A GB1234632 A GB 1234632A GB 1234632D A GB1234632D A GB 1234632DA GB 1234632 A GB1234632 A GB 1234632A
Authority
GB
United Kingdom
Prior art keywords
developer
dye
dioxa
hexahydro
layer
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
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 filed Critical
Publication of GB1234632A publication Critical patent/GB1234632A/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
    • G03C5/29—Development processes or agents therefor
    • G03C5/30—Developers
    • G03C5/3021—Developers with oxydisable hydroxyl or amine groups linked to an aromatic ring
    • 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

1,234,632. Photographic dye-developer diffusion transfer process. EASTMAN KODAK CO Sept. 5, 1968 [Sept. 5, 1967], No.42323/68. Heading G2C. The invention resides in a method of producing a colour image by the photographic dye-developer diffusion transfer process in which a photographic material comprising a support and at least one light-sensitive silver halide emulsion layer which contains a dye developer or is contiguous to a layer containing a dye-developer, which has been exposed to a light image, is processed by allowing an alkaline liquid that causes the dye-developer to develop the latent image to permeate said layers and by allowing the residual, unoxidized, portions of the dye-developer to transfer imagewise by diffusion and in register to a receiving layer contained in a receiving material and in which there is present in the alkaline liquid an auxiliary silver halide developing agent of the formula: - each R and R 1 in said formulae being H, an alkyl group containing 1 to 4 carbonatoms which may be substituted, an alkenyl group, acycloalkyl group or a phenyl group. The auxiliary developing agent of the formula I, II or III is preferably formed before or during said permeation by hydrolysis by the alkaline liquid of a compound of the formula: - respectively, R and R 1 being as defined above. These latter compounds are preferably incorporated in the photographic material before said exposure, preferably in the outermost layer and preferably by coating the emulsion side of the material with a solution of the compound and removing the solvent e.g. acetonitrile or methanol. These compounds may be present at a concentration of 10 to 150 mg per square foot. The compounds use in the examples are 3, 7-bis (hydroxyethyl)- 2, 3, 4, 6, 7, 8-hexahydro-1, 5-dioxa-3, 7-diazaanthracene, 3, 6-bis(hydroxyethyl)-2, 3, 4, 5, 6, 7- hexahydro-1, 8-dioxa-3, 6-diazaphenanthrene, 3, 6-dimethyl-2, 3, 4, 5, 6, 7-hexahydro-1, 8-dioxa- 3, 6-diazaphenanthrene, 3, 6-diallyl-2, 3,4, 5, 6, 7- hexahydro-1, 8-dioxa-3, 6-diazaphenanthrene, and 3-hydroxyethyl-6-hydroxy-2, 3, 4-trihydro-1-oxa- 3-azanaphthalene. The heterocyclic compounds may be incorporated in a layer of the receiving material before said processing so that it dissolves (and hydrolyses) in the alkaline aqueous liquid before said permeation. The colour prints resulting from the process of this invention have low minimum densities and the auxiliary developing agents have good resistance to aerial oxidation.
GB1234632D 1967-09-05 1968-09-05 Expired GB1234632A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US66529667A 1967-09-05 1967-09-05

Publications (1)

Publication Number Publication Date
GB1234632A true GB1234632A (en) 1971-06-09

Family

ID=24669537

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1234632D Expired GB1234632A (en) 1967-09-05 1968-09-05

Country Status (3)

Country Link
US (1) US3462266A (en)
FR (1) FR1597504A (en)
GB (1) GB1234632A (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE787914A (en) * 1971-08-24 1973-02-23 Eastman Kodak Co PHOTOGRAPHIC PRODUCT FOR FORMING COLOR IMAGES BY DIFFUSION-TRANSFER AND DIFFUSION-TRANSFER PHOTOGRAPHIC PROCESS WHICH USES THE PRODUCT
JPS506340A (en) * 1973-05-16 1975-01-23
FR2408161A1 (en) * 1977-11-03 1979-06-01 Kodak Pathe SILVER HALIDE PHOTOGRAPHIC PRODUCTS FOR DIFFUSION-TRANSFER GIVING IMPROVED COLOR IMAGES, AND COLOR IMAGE FORMING METHODS WHICH USE THESE PRODUCTS
CA1112929A (en) * 1977-11-03 1981-11-24 Thomas I. Abbott Use of hydroquinone esters as blocked competing developers for color transfer assemblages
US4201578A (en) * 1977-11-03 1980-05-06 Eastman Kodak Company Blocked competing developers for color transfer
JPS63149646A (en) * 1986-12-15 1988-06-22 Konica Corp Method for preventing color fading of organic coloring material
WO1989005803A1 (en) * 1987-12-24 1989-06-29 Kuraray Co., Ltd. 3,4-dihydro-2h-1,3-benzoxazine derivatives and their medicinal use
US6959658B2 (en) * 2002-10-15 2005-11-01 Goodrich Corporation Breakaway lacing for emergency evacuation slide

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3240810A (en) * 1961-03-09 1966-03-15 Polaroid Corp 1, 5-bis (dihydroxyphenyl)-3-pentylamine and salts thereof
BE630117A (en) * 1962-03-29
GB1053631A (en) * 1963-01-16
US3291609A (en) * 1964-06-05 1966-12-13 Eastman Kodak Co Developer incorporated photographic materials
US3345170A (en) * 1964-06-05 1967-10-03 Eastman Kodak Co Light sensitive photographic elements containing developing agent precursors

Also Published As

Publication number Publication date
US3462266A (en) 1969-08-19
FR1597504A (en) 1970-06-29

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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