electrotype

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electrotype

[i′lek·trə‚tīp]
(graphic arts)
A duplicate printing surface prepared by making a mold of the type page or halftone plate, then suspending this mold in a bath of copper sulfate and sulfuric acid where, by electrolytic action, a thin shell of copper is deposited on it, and finally pouring molten type metal into this shell to strengthen it for use on the press.
References in periodicals archive ?
The articles are then set and electrotyped on mats.
The material text of Leaves was read as a sign of his publicity as well, with a reviewer of the 1860 edition noting that it "is electrotyped for the sake of cheapness, the publishers evidently designing to sell it by millions, if possible." (42)