photomechanical process

Japanese: photomechanical process(英語表記)photomechanicalprocess
photomechanical process

...Although not commonly used in Japan, electroforming (also called electroplate or electroforming plate) is a mechanical platemaking method in which an electroformed mold (a mold with the inverted projections and recesses made from lead, wax, or plastic) is taken from the master and a metal is electroplated onto the electroformed mold using electrolysis.
[Plate making by photographic methods]
This is what is known as the photomechanical process, and most printing is done using this method, except for letterpress and its reproductions. Simply put, photomechanical printing is the creation of plates by making good use of materials that change their properties when they are exposed to light, and it is used for all four types of printing: letterpress, planographic, intaglio, and mimeograph.

*Some of the terms used in this article refer to the "photomechanical process."

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…日本ではあまり行われないが,原版から電型(鉛,蠟,プラスチックなどで原版から型取りした凹凸反対になっている型)をとり,電気分解を利用して電型の上に金属を電着させて作る電鋳版(電気版,電胎版ともいう)も機械的な製版方法といえる。
[写真的方法による製版]
 いわゆる写真製版photomechanical processと呼ばれているもので,活版とその複製版を除いてほとんどがこの方法によっている。ひとくちにいえば光に感じて性質を変える物質をうまく利用して版を作るのが写真製版であって,4版式,つまり凸版,平版,凹版,孔版いずれにも利用される。…

※「photomechanical process」について言及している用語解説の一部を掲載しています。

出典|株式会社平凡社世界大百科事典 第2版について | 情報

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