GB1142688A - Anti-halation layers and their formation - Google Patents

Anti-halation layers and their formation

Info

Publication number
GB1142688A
GB1142688A GB1238966A GB1238966A GB1142688A GB 1142688 A GB1142688 A GB 1142688A GB 1238966 A GB1238966 A GB 1238966A GB 1238966 A GB1238966 A GB 1238966A GB 1142688 A GB1142688 A GB 1142688A
Authority
GB
United Kingdom
Prior art keywords
antihalation
coating
water
insoluble
free acid
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
GB1238966A
Inventor
Alessandro Giorgetti
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.)
Ferrania SpA
Original Assignee
Ferrania SpA
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 Ferrania SpA filed Critical Ferrania SpA
Publication of GB1142688A publication Critical patent/GB1142688A/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
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Coating Of Shaped Articles Made Of Macromolecular Substances (AREA)
  • Laminated Bodies (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)
  • Pigments, Carbon Blacks, Or Wood Stains (AREA)

Abstract

1,142,688. Photographic antihalation layers. FERRANIA S.p.A. March 21, 1966 [May 31, 1965], No. 12389/66. Heading G2C. A photographic support carrying an antihalation layer is prepared by applying to the support a coating of an aqueous composition containing lightabsorbing antihalation material such as carbon black or an antihalation dye, and a dissolved water-soluble ammonium salt of a normally solid water-insoluble carboxyl-group-containing phenolaldehyde condensation polymer, said ammonium salt being thermally decomposable at 100 to 200‹C. to form the water-insoluble but alkali-soluble free acid form of the polymer, and heating the coating to give said free acid form. The other surface of the support may be coated with a photosensitive gelatine silver halide emulsion. The polymers specified are condensation products of aliphatic or aromatic aldehydes or of phenol-or cresol-alcohols with hydroxyphenyl carboxylic or alkoxyphenyl carboxylic acids. Antihalation dyes include yellow, magenta and green dyes which as the ammonium salts decompose at 100 to 120‹C. to form a water-insoluble free acid form which is soluble in alkali. The antihalation coating may also include stabilizers, plasticizers, spreading agents and surfactants. The coating may itself be coated by a thin layer of wax from a solution in a chlorinated hydrocarbon.
GB1238966A 1965-05-31 1966-03-21 Anti-halation layers and their formation Expired GB1142688A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT1211165 1965-05-31
IT1816165 1965-05-31

Publications (1)

Publication Number Publication Date
GB1142688A true GB1142688A (en) 1969-02-12

Family

ID=26326471

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1238966A Expired GB1142688A (en) 1965-05-31 1966-03-21 Anti-halation layers and their formation

Country Status (4)

Country Link
BE (1) BE678764A (en)
CH (1) CH524837A (en)
DE (1) DE1572171C3 (en)
GB (1) GB1142688A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3767407A (en) * 1970-10-20 1973-10-23 Agfa Gevaert Nv Photographic materials
US4210569A (en) * 1979-03-19 1980-07-01 Bernatsek Vladislav V Polymeric adhesive antihalation composition for making metal-backed photopolymeric printing forms

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB944125A (en) * 1959-03-06

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3767407A (en) * 1970-10-20 1973-10-23 Agfa Gevaert Nv Photographic materials
US4210569A (en) * 1979-03-19 1980-07-01 Bernatsek Vladislav V Polymeric adhesive antihalation composition for making metal-backed photopolymeric printing forms

Also Published As

Publication number Publication date
DE1572171C3 (en) 1981-04-09
BE678764A (en) 1966-09-01
DE1572171B2 (en) 1980-06-26
DE1572171A1 (en) 1970-01-08
CH524837A (en) 1972-06-30

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