• WordNet 3.6
    • n collotype a photomechanical printing process that uses a glass plate with a gelatin surface that carries the image to be reproduced; can be used with one or more colors
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Webster's Revised Unabridged Dictionary
    • n Collotype A photomechanical print made directly from a hardened film of gelatin or other colloid; also, the process of making such prints. According to one method, the film is sensitized with potassium dichromate and exposed to light under a reversed negative. After the dichromate has been washed out, the film is soaked in glycerin and water. As this treatment causes swelling in those parts of the film which have been acted on by light, a plate results from which impressions can be taken with prepared ink. The albertype, phototype, and heliotype are collotypes.
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Century Dictionary and Cyclopedia
    • n collotype A photomechanical process by which prints in greasy ink are obtained from a gelatin film used as a printing-surface. When bichromated gelatin is exposed behind a reversed negative and is washed, a greasy ink will adhere only to those places which have been affected by light This property was discovered by Fox Talbot in 1853. It is usual to employ a thick glass plate (though metals and parchment paper also serve) for supporting the gelatin, and to cover this glass with a silicate, or an albumin solution, which is dried, as a substratum for the gelatin. More prints can then be run off. The surface of the developed gelatin is kept moistened with a mixture of glycerin and water. The ink is applied with a leather roller for the shadows, and a gelatin roller for the halftones. The paper on which the proofs are pulled may be glazed or unglazed, and a protecting varnish may be put over the print.
    • n collotype A print from a photographically prepared film of gelatin upon a glass or metal plate.
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Chambers's Twentieth Century Dictionary
    • n Collotype kol′o-tīp a photographic process much used for book illustrations and advertising purposes.
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Webster's Revised Unabridged Dictionary
Gr. glue + -type,
Chambers's Twentieth Century Dictionary
Gr. kolla, glue, and Type.


In literature:

Collotype printing is not merely done by hand presses, but is also done by machinery.
"Scientific American Supplement, No. 362, December 9, 1882" by Various
Emery Walker Limited, Collotypers.
"The Worst Journey in the World, Volumes 1 and 2" by Apsley Cherry-Garrard
With 19 Plates in Colour, 20 in Collotype, and 5 in Photogravure.
"The Land of the Black Mountain" by Reginald Wyon
The collotype reproduction facing page 12 shows the shape and character of the baren.
"Wood-Block Printing" by F. Morley Fletcher
With 11 Collotype Plates and other illustrations.
"Scientific American Supplement, No. 1157, March 5, 1898" by Various
I, 7, and the objects in collotype in PL.
"El Kab" by J.E. Quibell
With thirty-two portraits in collotype and frontispiece in colour.
"Law and Laughter" by George Alexander Morton
Four portraits in colour, twenty-five in collotype and several letters in facsimile.
"Lavengro The Scholar, The Gypsy, The Priest" by George Borrow
This at least has been the case with the work of my own which is shown in the other collotypes.
"Stained Glass Work" by C. W. Whall
With thirty-one Facsimile Plates in Collotype and Parallel readings from the contemporary Pipe Roll.
"An Example of Communal Currency" by J. Theodore Harris

In news:

Collotype to cost Multi-Color $185 million Multi-Color Corporation (Nasdaq: LABL), of Sharonville, OH, USA, has announced the signing of a binding agreement to acquire Collotype International Holdings Pty.
Multi-Color Corporation (Nasdaq: LABL), of Sharonville, OH, USA, has announced the signing of a binding agreement to acquire Collotype International Holdings Pty.
Collotype Labels acquired by Multi-Color Multi-Color Corporation announced Monday the signing of a letter of intent Collotype International Holdings Pty.