GB668970A - Improvements in light-sensitive photographic papers and gelatino-baryta coating compositions therefor - Google Patents

Improvements in light-sensitive photographic papers and gelatino-baryta coating compositions therefor

Info

Publication number
GB668970A
GB668970A GB6597/50A GB659750A GB668970A GB 668970 A GB668970 A GB 668970A GB 6597/50 A GB6597/50 A GB 6597/50A GB 659750 A GB659750 A GB 659750A GB 668970 A GB668970 A GB 668970A
Authority
GB
United Kingdom
Prior art keywords
gelatino
baryta
per cent
light
coating compositions
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
GB6597/50A
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.)
Kodak Ltd
Original Assignee
Kodak 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 Kodak Ltd filed Critical Kodak Ltd
Publication of GB668970A publication Critical patent/GB668970A/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
    • G03C1/775—Photosensitive materials characterised by the base or auxiliary layers the base being of paper

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Paper (AREA)
  • Heat Sensitive Colour Forming Recording (AREA)

Abstract

668,970. Photographic papers. KODAK, Ltd. March 16, 1950 [March 18, 1949], No. 6597/50. Drawings to Specification. Class 98 (ii). [Also in Group V] A photographic paper support which is overcoated with a silver halide emulsion layer comprises a paper sheet having on one surface thereof a gelatino-baryta layer containing glyoxal as a gelatin hardening agent. Preferably said gelatino-baryta layer contains 1-6 per cent of glyoxal, typically 2 per cent, based on the weight of the gelatine content. In the example given, the gelatino-baryta composition. comprises 20-50 per cent by weight of baryta and 1-15 per cent by weight of gelatin.
GB6597/50A 1949-03-18 1950-03-16 Improvements in light-sensitive photographic papers and gelatino-baryta coating compositions therefor Expired GB668970A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US82118A US2642362A (en) 1949-03-18 1949-03-18 Light-sensitive baryta-coated photographic paper

Publications (1)

Publication Number Publication Date
GB668970A true GB668970A (en) 1952-03-26

Family

ID=22169180

Family Applications (1)

Application Number Title Priority Date Filing Date
GB6597/50A Expired GB668970A (en) 1949-03-18 1950-03-16 Improvements in light-sensitive photographic papers and gelatino-baryta coating compositions therefor

Country Status (2)

Country Link
US (1) US2642362A (en)
GB (1) GB668970A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3012886A (en) * 1954-05-10 1961-12-12 Harry H Lerner Emulsion coating and method of preparation

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE381162A (en) * 1930-07-12
IT384872A (en) * 1939-07-14
US2414858A (en) * 1940-12-04 1947-01-28 Strathmore Paper Company Tanning of proteins

Also Published As

Publication number Publication date
US2642362A (en) 1953-06-16

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