GB568782A - Improvements in or relating to photographic materials - Google Patents

Improvements in or relating to photographic materials

Info

Publication number
GB568782A
GB568782A GB1695043A GB1695043A GB568782A GB 568782 A GB568782 A GB 568782A GB 1695043 A GB1695043 A GB 1695043A GB 1695043 A GB1695043 A GB 1695043A GB 568782 A GB568782 A GB 568782A
Authority
GB
United Kingdom
Prior art keywords
resin
layer
solvent
gelatin
paper base
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
GB1695043A
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.)
RONALD JAMES COX
Original Assignee
RONALD JAMES COX
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 RONALD JAMES COX filed Critical RONALD JAMES COX
Priority to GB1695043A priority Critical patent/GB568782A/en
Publication of GB568782A publication Critical patent/GB568782A/en
Expired legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03CPHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C1/00Photosensitive materials
    • G03C1/76Photosensitive materials characterised by the base or auxiliary layers
    • G03C1/775Photosensitive materials characterised by the base or auxiliary layers the base being of paper
    • G03C1/79Macromolecular coatings or impregnations therefor, e.g. varnishes

Landscapes

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

Abstract

Photographic printing paper comprises paper carrying surface coatings of hydrophobic polyvinyl acetal resin and carrying at least one emulsion layer, which may be separated from the resin layer by a colloid layer strongly adherent to both. The resin may be obtained from polyvinyl acetate by partial or complete hydrolysis with simultaneous or subsequent reaction with formaldehyde, or a higher aldehyde. A solvent of the resin in a preferably volatile organic solvent or solvent mixture is applied to one or both sides of paper base. A subbing layer containing cellulose nitrate and gelatin, or successive layers of cellulose nitrate and gelatin, is then applied. The first subbing solution should preferably contain a substance having a slight solvent action on the resin. In an example, paper base is successively coated on opposite sides with a solution comprising "Formvar" (Registered Trade Mark) 15-95, benzene, and ethyl alcohol, then on one side with a layer of nitrocellulose, with a gelatin layer, and finally with a gelatin silver halide emulsion layer. The resin solvent may alternatively be a chlorinated hydrocarbon; dioxane; acetic acid mixtures of ethyl alcohol with toluene, xylene, monochlorobenzene, or carbon tetrachloride; or a mixture of ethylene dichloride and methyl alcohol. A plasticizer such as benzyl benzoate, tricresyl phosphate, p-tert.-amylphenol, dibutyl phthalate, or tributyl phosphate or mixtures thereof may be added. The paper base may carry a baryta coating immediately adherent thereto.
GB1695043A 1943-10-15 1943-10-15 Improvements in or relating to photographic materials Expired GB568782A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1695043A GB568782A (en) 1943-10-15 1943-10-15 Improvements in or relating to photographic materials

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1695043A GB568782A (en) 1943-10-15 1943-10-15 Improvements in or relating to photographic materials

Publications (1)

Publication Number Publication Date
GB568782A true GB568782A (en) 1945-04-19

Family

ID=10086577

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1695043A Expired GB568782A (en) 1943-10-15 1943-10-15 Improvements in or relating to photographic materials

Country Status (1)

Country Link
GB (1) GB568782A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2789054A (en) * 1953-12-29 1957-04-16 Polaroid Corp Print-receiving elements for diffusion transfer reversal processes and film assemblies embodying said elements

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2789054A (en) * 1953-12-29 1957-04-16 Polaroid Corp Print-receiving elements for diffusion transfer reversal processes and film assemblies embodying said elements

Similar Documents

Publication Publication Date Title
GB820865A (en) Foils consisting of highly polymeric substances pre-treated for the application of hydrophilic colloids
GB1048393A (en) Photographic materials containing antistatic polymers
US2639234A (en) Antistatic photographic film
GB1141395A (en) Synthetic film materials
GB568782A (en) Improvements in or relating to photographic materials
GB470565A (en) Improvements in and relating to photographic films
US3337364A (en) Polyethylene terephthalate film coated with a synthetic polymeric resin binder composition containing an adhesion agent
GB483609A (en) Improvements relating to photographic stripping film
US2313570A (en) Photographic layer capable of receiving writing
GB1088906A (en) Synthetic film materials
US2694639A (en) Light-sensitive metal base photographic element
GB960204A (en) Polyvinyl alcohol films coated with vinylidene chloride-vinyl chloride copolymer
US3704154A (en) Process for producing photographic materials
US2541478A (en) Laminating process and products
GB663457A (en) Hardening photographic gelatino silver halide film of improved photographic properties
GB700646A (en) Improvements in the identification of photographic materials
GB779687A (en) Manufacture of plates, sheets and like articles of a basis of highpolymeric polymethylene terephthalates
US2703284A (en) Subbing photographic film
US2373289A (en) Photographic structure
US2346078A (en) Antihalation protective layer
US2596713A (en) Antihalation layer for cellulose ester lithographic printing plates
US2319080A (en) Antihalation backing for photographic film
US2458403A (en) Photographic film employing hydrolyzed cellulose acetate emulsions
US3091534A (en) Stripping film for improved emulsion
US3156565A (en) Photographic stripping film