GB450220A - Improvements in photographic sensitive layers having protective coatings - Google Patents

Improvements in photographic sensitive layers having protective coatings

Info

Publication number
GB450220A
GB450220A GB88935A GB88935A GB450220A GB 450220 A GB450220 A GB 450220A GB 88935 A GB88935 A GB 88935A GB 88935 A GB88935 A GB 88935A GB 450220 A GB450220 A GB 450220A
Authority
GB
United Kingdom
Prior art keywords
layers
artificial
resins
photographic
colophony
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
GB88935A
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 GB88935A priority Critical patent/GB450220A/en
Priority to FR799064D priority patent/FR799064A/en
Publication of GB450220A publication Critical patent/GB450220A/en
Priority to FR47724D priority patent/FR47724E/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
    • G03C1/7614—Cover layers; Backing layers; Base or auxiliary layers characterised by means for lubricating, for rendering anti-abrasive or for preventing adhesion
    • 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
    • G03C11/00—Auxiliary processes in photography
    • G03C11/08—Varnishing, e.g. application of protective layers on finished photographic prints

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Paints Or Removers (AREA)

Abstract

450,220. Protective layers for photographic emulsions. GROVES, W. W., 30, Southampton Buildings, Chancery Lane, London.-(I. G. Farbenindustrie Akt.-Ges.; Frankfort-on-Main, Germany) Jan. 10, 1935, No. 889. [Class 98 (ii)] Photographic sensitive emulsion layers are coated with thin protective layers of a natural or artificial resin containing one or more salt forming hydroxyl or carboxyl groups and soluble in alkali, by application to the layers of solutions of the resin in non-aqueous solvents. Dyes or stabilizers for the emulsion may be incorporated in the layers. Suitable natural resins are colophony or shellac As artificial resins, the condensation products of formaldehyde or phenol alcohols with phenols, oxy-, aryloxy-, or alkyloxy - carboxylic acids or phenoxy fatty acids may be used. Artificial resins after-treated with halogen fatty acids, and the condensation products of phenols or phenolcarboxylic acids with aliphatic, aromatic, or heterocyclic aldehydes or thionyl chloride may also be used. In examples, solutions of (1) the artificial resin from phenoxy acetic acid and formaldehyde in alcohol to which diphenylamine as a stabilizer or Naphthol Yellow as a filter dye may be added and (2) colophony dissolved in sodium carbonate, reprecipitated by acid and dissolved in butanol are applied to the emulsion layers of photographic plates or films. Specification 437,386 is referred to.
GB88935A 1935-01-10 1935-01-10 Improvements in photographic sensitive layers having protective coatings Expired GB450220A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB88935A GB450220A (en) 1935-01-10 1935-01-10 Improvements in photographic sensitive layers having protective coatings
FR799064D FR799064A (en) 1935-01-10 1935-12-12 Varnishing process of photographic layers
FR47724D FR47724E (en) 1935-01-10 1936-10-28 Varnishing process of photographic layers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB88935A GB450220A (en) 1935-01-10 1935-01-10 Improvements in photographic sensitive layers having protective coatings

Publications (1)

Publication Number Publication Date
GB450220A true GB450220A (en) 1936-07-10

Family

ID=9712263

Family Applications (1)

Application Number Title Priority Date Filing Date
GB88935A Expired GB450220A (en) 1935-01-10 1935-01-10 Improvements in photographic sensitive layers having protective coatings

Country Status (2)

Country Link
FR (2) FR799064A (en)
GB (1) GB450220A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2459266A (en) * 1941-07-08 1949-01-18 Photo Positive Corp Article for reproducing drawings on blanks
US2633423A (en) * 1950-12-01 1953-03-31 Gen Aniline & Film Corp Antiabrasion coatings for gelatino silver halide emulsion layers consisting of resins obtained by condensing 5-substituted hydantions with formaldehyde
US2762708A (en) * 1951-10-23 1956-09-11 Gen Aniline & Film Corp Fungus resistant overcoating for color silver halide emulsion layers

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2459266A (en) * 1941-07-08 1949-01-18 Photo Positive Corp Article for reproducing drawings on blanks
US2633423A (en) * 1950-12-01 1953-03-31 Gen Aniline & Film Corp Antiabrasion coatings for gelatino silver halide emulsion layers consisting of resins obtained by condensing 5-substituted hydantions with formaldehyde
US2762708A (en) * 1951-10-23 1956-09-11 Gen Aniline & Film Corp Fungus resistant overcoating for color silver halide emulsion layers

Also Published As

Publication number Publication date
FR799064A (en) 1936-06-05
FR47724E (en) 1937-06-22

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