GB292990A - Improvements in the manufacture of photographic anti-halation plates or films - Google Patents

Improvements in the manufacture of photographic anti-halation plates or films

Info

Publication number
GB292990A
GB292990A GB7393/28A GB739328A GB292990A GB 292990 A GB292990 A GB 292990A GB 7393/28 A GB7393/28 A GB 7393/28A GB 739328 A GB739328 A GB 739328A GB 292990 A GB292990 A GB 292990A
Authority
GB
United Kingdom
Prior art keywords
halation
films
plates
manufacture
photographic anti
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
GB7393/28A
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
Publication of GB292990A publication Critical patent/GB292990A/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
    • G03C1/00—Photosensitive materials
    • G03C1/76—Photosensitive materials characterised by the base or auxiliary layers
    • G03C1/825—Photosensitive materials characterised by the base or auxiliary layers characterised by antireflection means or visible-light filtering means, e.g. antihalation
    • G03C1/835—Macromolecular substances therefor, e.g. mordants

Landscapes

  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Laminated Bodies (AREA)

Abstract

292,990. I. G. Farbenindustrie Akt.- Ges. June 29, 1927, [Convention date]. Halation, preventing. - Plates or films are coated on the back with a mixture made by adding to an alkaline casein solution formaldehyde and a colouring-matter such as acid black 2B, nigrosin D soluble in water, wool black 4B, or lampblack. The coating floats away as a coherent skin during development.
GB7393/28A 1927-06-29 1928-03-09 Improvements in the manufacture of photographic anti-halation plates or films Expired GB292990A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE292990X 1927-06-29

Publications (1)

Publication Number Publication Date
GB292990A true GB292990A (en) 1929-01-10

Family

ID=6076592

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7393/28A Expired GB292990A (en) 1927-06-29 1928-03-09 Improvements in the manufacture of photographic anti-halation plates or films

Country Status (3)

Country Link
BE (1) BE351695A (en)
FR (1) FR654989A (en)
GB (1) GB292990A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2462534A (en) * 1946-03-29 1949-02-22 Du Pont Light-sensitive photographic elements

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2462534A (en) * 1946-03-29 1949-02-22 Du Pont Light-sensitive photographic elements

Also Published As

Publication number Publication date
FR654989A (en) 1929-04-12
BE351695A (en)

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