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GB1381548A - Silver diffusion transfer process - Google Patents

Silver diffusion transfer process

Info

Publication number
GB1381548A
GB1381548A GB1505072A GB1505072A GB1381548A GB 1381548 A GB1381548 A GB 1381548A GB 1505072 A GB1505072 A GB 1505072A GB 1505072 A GB1505072 A GB 1505072A GB 1381548 A GB1381548 A GB 1381548A
Authority
GB
United Kingdom
Prior art keywords
silver
transfer process
silver halide
cellulose
alkoxyalkoxyalkyl
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
GB1505072A
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.)
Polaroid Corp
Original Assignee
Polaroid Corp
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 Polaroid Corp filed Critical Polaroid Corp
Publication of GB1381548A publication Critical patent/GB1381548A/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
    • G03C8/04—Photosensitive materials characterised by the image-forming section the substances transferred by diffusion consisting of inorganic or organo-metallic compounds derived from photosensitive noble metals
    • G03C8/06—Silver salt diffusion transfer

Landscapes

  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)
  • Photosensitive Polymer And Photoresist Processing (AREA)

Abstract

1381548 Photographic transfer process POLAROID CORP 30 March 1972 [1 April 1971] 15050/72 Heading G2C A photographic silver salt diffusion transfer process comprises developing an exposed silver halide emulsion in which at least 95% of the silver halide grains have a diameter of at least 0À5Á with an aqueous processing solution including a hydroxylamine developing agent and a silver halide solvent and transferring at least a portion of the imagewise distribution of silver complex formed to a superposed stratum of regenerated cellulose containing a silver precipitating agent. Preferably the developing agent is of formula:- (R<SP>1</SP>) (R<SP>2</SP>)NOH (in which R<SP>1</SP> is alkyl, alkoxyalkyl or alkoxyalkoxyalkyl; R<SP>2</SP> is H, alkyl, alkoxyalkyl, alkoxyalkoxyalkyl or alkenyl), and the receiving stratum is formed by the partial depthwise hydrolysis of a cellulose ester containing the precipitating agent and a mercapto compound. In the Examples, the receiving element is formed by coating baryta paper with 2 layers of cellulose diacetate containing 1,6-bis(5-mercapto-1,3,4-thiadiazolyl-2- thio)-hexane, the outer layer also containing NiS, and then hydrolyzing the outer layer; the aqueous processing solution contains KOH, TiO 2 , ZnO, hydroxyethyl cellulose, triethanolamine, 2,4-dimercaptopyrimidine, uracil and either tetrahydropyrimidine-thio or imidazolidine-thione. The invention also relates to a film unit for effecting the above process.
GB1505072A 1971-04-01 1972-03-30 Silver diffusion transfer process Expired GB1381548A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US13038371A 1971-04-01 1971-04-01

Publications (1)

Publication Number Publication Date
GB1381548A true GB1381548A (en) 1975-01-22

Family

ID=22444453

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1505072A Expired GB1381548A (en) 1971-04-01 1972-03-30 Silver diffusion transfer process

Country Status (10)

Country Link
US (1) US3765889A (en)
JP (1) JPS5529417B1 (en)
AU (1) AU451556B2 (en)
BE (1) BE781475A (en)
CA (1) CA979264A (en)
DE (1) DE2215788C2 (en)
FR (1) FR2132095B1 (en)
GB (1) GB1381548A (en)
IT (1) IT952356B (en)
NL (1) NL171632C (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5514419B2 (en) * 1972-12-25 1980-04-16
JPS55163536A (en) * 1979-06-07 1980-12-19 Fuji Photo Film Co Ltd Diffusion transfer photographic method
US4278756A (en) * 1979-07-06 1981-07-14 Drexler Technology Corporation Reflective data storage medium made by silver diffusion transfer
JPS614040A (en) * 1984-06-18 1986-01-09 Fuji Photo Film Co Ltd Silver salt diffusion transfer photographic material
EP0519543A3 (en) * 1991-06-20 1992-12-30 Agfa-Gevaert N.V. A silver salt diffusion transfer material and method for making an image therewith
EP0557616A1 (en) * 1992-02-07 1993-09-01 Agfa-Gevaert N.V. A silver halide material suitable for use in a silver salt diffusion transfer process

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2662822A (en) * 1949-04-21 1953-12-15 Polaroid Corp Photographic transfer processes and compositions for the practice of said processes
US3031304A (en) * 1958-08-20 1962-04-24 Albert J Oliver Fine grain nuclear emulsion
US3293034A (en) * 1963-06-26 1966-12-20 Polaroid Corp Alkoxy hydroxylamines as photographic developers
GB1082012A (en) * 1964-05-23 1967-09-06 Kodak Ltd Sensitive photographic materials and emulsions therefor
US3501305A (en) * 1966-03-11 1970-03-17 Eastman Kodak Co Monodispersed photographic reversal emulsions
US3687677A (en) * 1966-05-31 1972-08-29 Eastman Kodak Co Photosensitive elements having high surface concentration of silver halide and stabilized against contamination fog

Also Published As

Publication number Publication date
FR2132095A1 (en) 1972-11-17
AU3940472A (en) 1973-08-30
US3765889A (en) 1973-10-16
DE2215788C2 (en) 1982-12-09
NL171632B (en) 1982-11-16
FR2132095B1 (en) 1977-04-01
DE2215788A1 (en) 1972-10-12
NL171632C (en) 1983-04-18
NL7204161A (en) 1972-10-03
CA979264A (en) 1975-12-09
JPS5529417B1 (en) 1980-08-04
BE781475A (en) 1972-10-02
IT952356B (en) 1973-07-20
AU451556B2 (en) 1974-07-15

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PE20 Patent expired after termination of 20 years