gelatin process

gelatin process

▪ photographic process
also called  gelatin dry-plate process 

      photographic process in which gelatin is used as the dispersing vehicle for the light-sensitive silver salts. The process, introduced in about 1880, superseded the wet collodion process, in which a wet negative was produced from a nitrocellulose (collodion) solution applied to a glass plate immediately prior to exposure. This chemical treatment necessitated the presence of a darkroom wherever a photograph was to be made. The development of a process in which a sensitized gelatin emulsion could be dried on the plate and stored, protected from light, for months before use revolutionized the world of photography. Gelatin is still the standard binding medium for the silver halide crystals used in ordinary photographic film.

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Universalium. 2010.

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Look at other dictionaries:

  • Gelatin process — Gelatin Gel a*tin, Gelatine Gel a*tine, n. [F. g[ e]latine, fr. L. gelare to congeal. See {Geal}.] (Chem.) Animal jelly; glutinous material obtained from animal tissues by prolonged boiling. Specifically (Physiol. Chem.), a nitrogeneous colloid,… …   The Collaborative International Dictionary of English

  • gelatin process — noun : any of various processes involving the use of gelatin: as a. : a photographic process in which gelatin is used as the dispersing vehicle for the sensitive silver salts b. : a printing process for reproducing pictures or drawings based upon …   Useful english dictionary

  • Gelatin process — Печать с желатиновых форм, фототипия …   Краткий толковый словарь по полиграфии

  • Gelatin — Gel a*tin, Gelatine Gel a*tine, n. [F. g[ e]latine, fr. L. gelare to congeal. See {Geal}.] (Chem.) Animal jelly; glutinous material obtained from animal tissues by prolonged boiling. Specifically (Physiol. Chem.), a nitrogeneous colloid, not… …   The Collaborative International Dictionary of English

  • Gelatin — (also gelatine, from French gélatine ) is a translucent, colourless, brittle, nearly tasteless solid substance, extracted from the collagen inside animals connective tissue. It has been commonly used as a gelling agent in food, pharmaceutical,… …   Wikipedia

  • Blasting gelatin — Gelatin Gel a*tin, Gelatine Gel a*tine, n. [F. g[ e]latine, fr. L. gelare to congeal. See {Geal}.] (Chem.) Animal jelly; glutinous material obtained from animal tissues by prolonged boiling. Specifically (Physiol. Chem.), a nitrogeneous colloid,… …   The Collaborative International Dictionary of English

  • Vegetable gelatin — Gelatin Gel a*tin, Gelatine Gel a*tine, n. [F. g[ e]latine, fr. L. gelare to congeal. See {Geal}.] (Chem.) Animal jelly; glutinous material obtained from animal tissues by prolonged boiling. Specifically (Physiol. Chem.), a nitrogeneous colloid,… …   The Collaborative International Dictionary of English

  • Gelatin-silver process — The gelatin silver process is the photographic process used with currently available black and white films and printing papers. A suspension of silver salts in gelatin is coated onto acetate film or fiber based or resin coated paper and allowed… …   Wikipedia

  • Gelatin hectographic process — Гектографирование с использованием (застывшей) желатиновой массы …   Краткий толковый словарь по полиграфии

  • Collodion process — An old deteriorated wet plate featuring Theodore Roosevelt The collodion process is an early photographic process. It was introduced in the 1850s and by the end of that decade it had almost entirely replaced the first practical photographic… …   Wikipedia

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