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date: 09 February 2025

etching 

Source:
The Oxford Companion to the Book

An *intaglio printing process that uses acid to eat lines or other marks into a metal *plate (usually copper) on which an acid-resistant resin ground has been laid. Using needles or other tools, the etcher draws directly into the ground, removing the resin and exposing the metal underneath. When the plate is immersed in an acid bath, the exposed metal is bitten to the required depth. The timing of the biting and the number of times the plate is returned to the acid bath determine the strength of the lines and the amount of ... ...

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