GB811182A - Improvement of photographic prints - Google Patents

Improvement of photographic prints

Info

Publication number
GB811182A
GB811182A GB2536156A GB2536156A GB811182A GB 811182 A GB811182 A GB 811182A GB 2536156 A GB2536156 A GB 2536156A GB 2536156 A GB2536156 A GB 2536156A GB 811182 A GB811182 A GB 811182A
Authority
GB
United Kingdom
Prior art keywords
gelatine
hardened
formaldehyde
aug
emulsion
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
GB2536156A
Inventor
Kenneth Hazel Chapman
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.)
Imperial Chemical Industries Ltd
Original Assignee
Imperial Chemical Industries Ltd
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 Imperial Chemical Industries Ltd filed Critical Imperial Chemical Industries Ltd
Priority to GB2536156A priority Critical patent/GB811182A/en
Publication of GB811182A publication Critical patent/GB811182A/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
    • G03C1/815—Photosensitive materials characterised by the base or auxiliary layers characterised by means for filtering or absorbing ultraviolet light, e.g. optical bleaching
    • G03C1/8155—Organic compounds therefor

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Paper (AREA)

Abstract

811,182. Photographic papers. IMPERIAL CHEMICAL INDUSTRIES Ltd. Aug. 16, 1957 [Aug. 20, 1956], No. 25361/56. Class 98(2) Photographic light-sensitive silver halide printing paper contains in the paper base or in a subbing, emulsion or overcoat layer, a fluorescent brightening agent which in the form of its free acid has the formula:- wherein R is chlorine, phenylamino or diphenylylamino. Examples are given of adding sodium salts of the agents to gelatine silver halide emulsions coated on a paper base subbed with gelatine hardened with formaldehyde, or to such a subbing layer which is then overcoated with the emulsion and finally with a protective layer of gelatine hardened with formaldehyde. Specifications 623,849, 624,052 and 704,974 [all in Group IV(b)] are referred to.
GB2536156A 1956-08-20 1956-08-20 Improvement of photographic prints Expired GB811182A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2536156A GB811182A (en) 1956-08-20 1956-08-20 Improvement of photographic prints

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2536156A GB811182A (en) 1956-08-20 1956-08-20 Improvement of photographic prints

Publications (1)

Publication Number Publication Date
GB811182A true GB811182A (en) 1959-04-02

Family

ID=10226433

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2536156A Expired GB811182A (en) 1956-08-20 1956-08-20 Improvement of photographic prints

Country Status (1)

Country Link
GB (1) GB811182A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3130046A (en) * 1959-01-07 1964-04-21 Azoplate Corp Electrophotographic reproduction material
DE1955898A1 (en) * 1969-03-17 1970-10-01 Agfa Gevaert Ag Improved photosensitive material

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3130046A (en) * 1959-01-07 1964-04-21 Azoplate Corp Electrophotographic reproduction material
DE1955898A1 (en) * 1969-03-17 1970-10-01 Agfa Gevaert Ag Improved photosensitive material

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