GB385832A - Manufacture of anti-halation layers for photographic materials - Google Patents

Manufacture of anti-halation layers for photographic materials

Info

Publication number
GB385832A
GB385832A GB13007/32A GB1300732A GB385832A GB 385832 A GB385832 A GB 385832A GB 13007/32 A GB13007/32 A GB 13007/32A GB 1300732 A GB1300732 A GB 1300732A GB 385832 A GB385832 A GB 385832A
Authority
GB
United Kingdom
Prior art keywords
support
layer
reversal
case
colloidal
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
GB13007/32A
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 GB385832A publication Critical patent/GB385832A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16G—BELTS, CABLES, OR ROPES, PREDOMINANTLY USED FOR DRIVING PURPOSES; CHAINS; FITTINGS PREDOMINANTLY USED THEREFOR
    • F16G13/00—Chains
    • F16G13/12—Hauling- or hoisting-chains so called ornamental chains
    • F16G13/14—Hauling- or hoisting-chains so called ornamental chains built up from readily-separable links
    • 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
    • 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

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

Abstract

An antihalation layer, more particularly for a sensitive layer which is to be developed to a positive by reversal, consists of colloidal silver and a binding agent such as gelatin, casein, or the calcium salt of polyglucuronic acid. The layer may be situated on the rear of the support, or between the sensitive emulsion and the support. The size of the silver particles, which can be varied by adding an electrolyte such as disodium phosphate during or after the preparation of the colloidal mixture, is preferably such that the layer has a spectral permeability over the range 550-700 m m , and the support of the layer is preferably dyed with a dye covering the gap of absorption of the antihalation layer, such as blue, violet, or lavender. Suitable dyestuffs are mentioned in the Specification. The colloidal silver dissolves in the reversal bath, but the dye remains in the support to colour the final picture in the case of a positive produced by reversal. In an example, the colloidal silver coating material is prepared by adding hydrazine sulphate slowly to a warm water solution of silver nitrate, ammonia, and gelatin, heating, allowing to solidify, cutting into small pieces, and washing. It is applied in molten condition to form the antihalation layer, and the support is dyed with aniline blue dissolved in a methanol and alcohol mixture in the case of nitrocellulose support, or in a methanol and acetone mixture in the case of acetyl cellulose support.
GB13007/32A 1927-07-16 1932-05-05 Manufacture of anti-halation layers for photographic materials Expired GB385832A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEI31729D DE521194C (en) 1927-07-16 1927-07-16 Process for the production of antihalation layers for light-sensitive, in particular panchromatic material

Publications (1)

Publication Number Publication Date
GB385832A true GB385832A (en) 1933-01-05

Family

ID=6083139

Family Applications (2)

Application Number Title Priority Date Filing Date
GB18940/28A Expired GB294104A (en) 1927-07-16 1928-06-29 Improved manufacture of photographic anti-halation coatings
GB13007/32A Expired GB385832A (en) 1927-07-16 1932-05-05 Manufacture of anti-halation layers for photographic materials

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB18940/28A Expired GB294104A (en) 1927-07-16 1928-06-29 Improved manufacture of photographic anti-halation coatings

Country Status (5)

Country Link
US (1) US1971430A (en)
BE (2) BE388357A (en)
DE (1) DE521194C (en)
FR (2) FR656569A (en)
GB (2) GB294104A (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2823122A (en) * 1951-06-30 1958-02-11 Polaroid Corp Photographic silver halide transfer process and the print-receiving products useful in connection therewith
US2927052A (en) * 1953-03-20 1960-03-01 Us Movidyn Corp Process of producing oligodynamic metal biocides
US2806798A (en) * 1953-07-08 1957-09-17 Du Pont Process for preparing yellow colloidal silver
BE557693A (en) * 1956-05-23
US3148063A (en) * 1959-12-18 1964-09-08 Eastman Kodak Co Light-sensitive element for preparing etching resist for gravure purposes
US4047956A (en) * 1975-11-17 1977-09-13 E. I. Du Pont De Nemours And Company Low coating weight silver halide element and process
JPS58147742A (en) * 1982-02-25 1983-09-02 Konishiroku Photo Ind Co Ltd Silver halide color photographic sensitive material
CN101609251B (en) * 2008-06-16 2012-10-10 侯锋 Double-sided light sensitive color photographic paper and preparation method thereof

Also Published As

Publication number Publication date
GB294104A (en) 1929-07-11
DE521194C (en) 1931-03-19
BE352388A (en)
BE388357A (en)
FR41770E (en) 1933-04-13
FR656569A (en) 1929-05-10
US1971430A (en) 1934-08-28

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