GB739018A - Improvements in or relating to photographic products and processes - Google Patents

Improvements in or relating to photographic products and processes

Info

Publication number
GB739018A
GB739018A GB19638/53A GB1963853A GB739018A GB 739018 A GB739018 A GB 739018A GB 19638/53 A GB19638/53 A GB 19638/53A GB 1963853 A GB1963853 A GB 1963853A GB 739018 A GB739018 A GB 739018A
Authority
GB
United Kingdom
Prior art keywords
liquid
diethylamine
ammonia
sodium
image
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
GB19638/53A
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
International Polaroid Corp
Original Assignee
Polaroid Corp
International 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, International Polaroid Corp filed Critical Polaroid Corp
Publication of GB739018A publication Critical patent/GB739018A/en
Expired legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03CPHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C5/00Photographic processes or agents therefor; Regeneration of such processing agents
    • G03C5/26Processes using silver-salt-containing photosensitive materials or agents therefor
    • G03C5/29Development processes or agents therefor
    • G03C5/305Additives other than developers
    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03CPHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C8/00Diffusion transfer processes or agents therefor; Photosensitive materials for such processes
    • G03C8/02Photosensitive materials characterised by the image-forming section
    • G03C8/04Photosensitive materials characterised by the image-forming section the substances transferred by diffusion consisting of inorganic or organo-metallic compounds derived from photosensitive noble metals
    • G03C8/06Silver salt diffusion transfer

Landscapes

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

Abstract

739,018. Photographic product and process. INTERNATIONAL POLAROID CORPORATION. July 15, 1953 [July 16, 1952], No. 19638/53. Drawings to Specification. Class 98 (2). Ammonia or a volatile amine such as diethylamine, triethylamine, diisopropylamine, allylamine or ethylamine is used to provide all or part of the alkalinity in the process in which a single application of liquid to an exposed silver halide emulsion layer develops exposed areas and produces a corresponding reversed image in a receiving element in contact with the emulsion during development, whereby evaporation from the element after separation from the emulsion reduces residual alkali and thereby avoids instability of the image therein. The ammonia or volatile amine may be included with the processing liquid in a sealed liquid-dispensing container of the type described in Specification 684,592, and such container may be introduced between or provided within the silver halide emulsion layer and the image receiving element, whereby the liquid may be dispensed and spread between the layers after exposure by application of pressure to the assembly. The reversal methods of Specifications 703,231 and 714,412 may be used. Example 1 specifies a water solution of sodium carboxymethyl cellulose, diethylamine, sodium hydroxide, sodium sulphite, sodium thiosulphate, hydroquinone, metol and chlorobenzotriazole as processing liquid. Examples 2 and 6 specify similar mixtures using diethylamine and example 5 a mixture in which the only alkali is ammonia. Specification 684,591 also is referred to.
GB19638/53A 1952-07-16 1953-07-15 Improvements in or relating to photographic products and processes Expired GB739018A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US301085A US2702244A (en) 1952-07-16 1952-07-16 Photographic processes for producing prints by transfer

Publications (1)

Publication Number Publication Date
GB739018A true GB739018A (en) 1955-10-26

Family

ID=23161876

Family Applications (1)

Application Number Title Priority Date Filing Date
GB19638/53A Expired GB739018A (en) 1952-07-16 1953-07-15 Improvements in or relating to photographic products and processes

Country Status (6)

Country Link
US (1) US2702244A (en)
BE (1) BE521429A (en)
DE (1) DE959516C (en)
FR (1) FR1088205A (en)
GB (1) GB739018A (en)
NL (1) NL87015C (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3220837A (en) * 1955-07-22 1965-11-30 Polaroid Corp Diffusion transfer to stratum of a silver image inked and used in printing
BE557693A (en) * 1956-05-23
JPH064349B2 (en) * 1984-03-30 1994-01-19 日本電気株式会社 Printer
IT1245857B (en) * 1991-04-03 1994-10-25 Minnesota Mining & Mfg BLACK AND WHITE ALKALINE DEVELOPER FOR PHOTOGRAPHIC MATERIAL WITH SILVER HALIDES

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US767815A (en) * 1902-10-28 1904-08-16 Hoechst Ag Photographic developer.
FR567901A (en) * 1923-07-02 1924-03-12 Enhancements to compositions for combined rapid development and setting
BE413072A (en) * 1934-12-31
US2308058A (en) * 1940-10-03 1943-01-12 Huey Co Developer for diazo prints
BE444702A (en) * 1941-01-24
FR959726A (en) * 1942-03-20 1950-04-04
US2388894A (en) * 1943-09-02 1945-11-13 Eastman Kodak Co Method of developing photographic emulsions
US2466423A (en) * 1945-05-11 1949-04-05 Eastman Kodak Co Fine-grain developers
US2525532A (en) * 1946-10-18 1950-10-10 Eastman Kodak Co Simultaneously developing and fixing photographic images
US2543181A (en) * 1947-01-15 1951-02-27 Polaroid Corp Photographic product comprising a rupturable container carrying a photographic processing liquid

Also Published As

Publication number Publication date
FR1088205A (en) 1955-03-04
DE959516C (en) 1957-03-07
US2702244A (en) 1955-02-15
NL87015C (en)
BE521429A (en)

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