GB447488A - Improvements in the production of imbibition reliefs - Google Patents

Improvements in the production of imbibition reliefs

Info

Publication number
GB447488A
GB447488A GB3324534A GB3324534A GB447488A GB 447488 A GB447488 A GB 447488A GB 3324534 A GB3324534 A GB 3324534A GB 3324534 A GB3324534 A GB 3324534A GB 447488 A GB447488 A GB 447488A
Authority
GB
United Kingdom
Prior art keywords
hardening
reliefs
imbibition
production
frankfort
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
GB3324534A
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.)
IG Farbenindustrie AG
Original Assignee
IG Farbenindustrie AG
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 IG Farbenindustrie AG filed Critical IG Farbenindustrie AG
Priority to GB3324534A priority Critical patent/GB447488A/en
Publication of GB447488A publication Critical patent/GB447488A/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
    • G03C7/00—Multicolour photographic processes or agents therefor; Regeneration of such processing agents; Photosensitive materials for multicolour processes
    • G03C7/22—Subtractive cinematographic processes; Materials therefor; Preparing or processing such materials
    • G03C7/25—Dye-imbibition processes; Materials therefor; Preparing or processing such materials

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

447,488. Photographic emulsions for use in dye-impression processes. GROVES, W. W., 30, Southampton Buildings, Chancery Lane, London.-(I. G. Farbenindustrie Akt.- Ges. ; Frankfort-on-Main, Germany) Nov. 19, 1934, No. 33245. [Class 98 (ii)] Positive reliefs for the imbibition process are prepared on silver halide emulsion layers which have been uniformly hardened to a high degree before use. A suitable degree of hardening is 70-90‹ on a scale defined in the Specification, and may be produced by a solution of alum. The further treatment consists in subjecting the layer to further local hardening in known manner, e.g. by exposure and hardening development of the silver image.
GB3324534A 1934-11-19 1934-11-19 Improvements in the production of imbibition reliefs Expired GB447488A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3324534A GB447488A (en) 1934-11-19 1934-11-19 Improvements in the production of imbibition reliefs

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3324534A GB447488A (en) 1934-11-19 1934-11-19 Improvements in the production of imbibition reliefs

Publications (1)

Publication Number Publication Date
GB447488A true GB447488A (en) 1936-05-19

Family

ID=10350415

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3324534A Expired GB447488A (en) 1934-11-19 1934-11-19 Improvements in the production of imbibition reliefs

Country Status (1)

Country Link
GB (1) GB447488A (en)

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