GB499768A - Improvements in anti-halation layers for photographic sensitive materials - Google Patents

Improvements in anti-halation layers for photographic sensitive materials

Info

Publication number
GB499768A
GB499768A GB20817/37A GB2081737A GB499768A GB 499768 A GB499768 A GB 499768A GB 20817/37 A GB20817/37 A GB 20817/37A GB 2081737 A GB2081737 A GB 2081737A GB 499768 A GB499768 A GB 499768A
Authority
GB
United Kingdom
Prior art keywords
silver
sulphide
halation
soluble
silver nitrate
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
GB20817/37A
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.)
OLAF FREDERICK BLOCH
Original Assignee
OLAF FREDERICK BLOCH
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 OLAF FREDERICK BLOCH filed Critical OLAF FREDERICK BLOCH
Priority to GB20817/37A priority Critical patent/GB499768A/en
Priority to US221395A priority patent/US2171911A/en
Publication of GB499768A publication Critical patent/GB499768A/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
    • G03C1/8255—Silver or silver compounds therefor

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)

Abstract

499,768. Photographic anti-halation layers. BLOCH, O. F. July 27, 1937, No. 20817. [Class 98 (ii)] Light-sensitive photographic material, especially for use in the reversal process, has a front, back or intermediate anti-halation layer comprising finely divided or colloidal silver sulphide particles suspended in a binding agent which is permeable to a chemical solution by which the silver sulphide particles may be removed after exposure of the material. The anti-halation layer may be formed by preparing a mixture of gelatine and silver nitrate, converting the silver nitrate to silver sulphide by treatment with a water-soluble sulphide, setting the mixture and washing out the soluble salts, and then coating the silver sulphide suspension so formed on to a support or on to a light-sensitive layer carried on a support. An excess of silver nitrate in relation to the soluble sulphide may be used, which excess is converted to silver halide.
GB20817/37A 1937-07-27 1937-07-27 Improvements in anti-halation layers for photographic sensitive materials Expired GB499768A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB20817/37A GB499768A (en) 1937-07-27 1937-07-27 Improvements in anti-halation layers for photographic sensitive materials
US221395A US2171911A (en) 1937-07-27 1938-07-26 Antihalation layer for photographic sensitive materials

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB20817/37A GB499768A (en) 1937-07-27 1937-07-27 Improvements in anti-halation layers for photographic sensitive materials

Publications (1)

Publication Number Publication Date
GB499768A true GB499768A (en) 1939-01-27

Family

ID=10152186

Family Applications (1)

Application Number Title Priority Date Filing Date
GB20817/37A Expired GB499768A (en) 1937-07-27 1937-07-27 Improvements in anti-halation layers for photographic sensitive materials

Country Status (2)

Country Link
US (1) US2171911A (en)
GB (1) GB499768A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1102942A (en) * 1955-10-31 1955-10-27 Kodak Pathe Photographic reproduction process and new products for its implementation
US5753402A (en) * 1995-07-31 1998-05-19 Eastman Kodak Company Method for recording and processing motion picture film soundtrack

Also Published As

Publication number Publication date
US2171911A (en) 1939-09-05

Similar Documents

Publication Publication Date Title
GB439005A (en) Improved methods of obtaining photographic contrasts by means of diazonium compounds and sensitive layers for use therein
US2305799A (en) Photographic material
GB687751A (en) Process and material for the direct production of positive photographic images
GB499768A (en) Improvements in anti-halation layers for photographic sensitive materials
GB698027A (en) Photographic light-sensitive diazotype material
US2066918A (en) Light-sensitive material and a proc
GB497023A (en) An improved manufacture of photographic material
GB968454A (en) Photographic transfer process
GB385832A (en) Manufacture of anti-halation layers for photographic materials
GB752409A (en) Finishing and protecting photographs
GB1077049A (en) Photographic material containing anti-halation and/or filter layers
GB925313A (en) Production of transfer images by the silver salt diffusion process and sensitive material therefor
GB753189A (en) Process and photographic material for the direct production of positive photographic images
GB1026357A (en) Improvements relating to photosensitive material and its preparation
CH346761A (en) Process for the production of antihalation and filter layers for photographic materials
GB193364A (en) Improvements in or relating to colour photography
GB494572A (en) Improvements in and relating to the manufacture of sensitised photographic printing paper and cloth
GB418976A (en) Improvements in and relating to the treatment of papers and fabrics for use in photographic printing
GB271507A (en) Improved process for producing light-sensitive films
GB409134A (en) Process for preparing light sensitive layers on foils of regenerated cellulose
GB1040376A (en) Process for the manufacture of photographic material
GB730349A (en) A coated paper for the direct production of positive photographic images
GB701529A (en) Manufacture and use of light-sensitive photographic layers or films
GB748891A (en) Improvements in or relating to materials for use in the migratory transfer of a photographic image
GB522782A (en) Process and material for preparing originals for photographic reproduction