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Etching - Wikipedia, the free encyclopedia |
 | | He developed the échoppe, an type of etching-needle with a slanting oval section at the end, which enabled etchers to create a swelling line, as engravers were able to do. |
 | | This enabled lines to be more deeply bitten, prolonging the life of the plate in printing, and also greatly reducing the risk of "foul-biting", where acid gets through the ground to the plate where it is not intended to, producing spots or blotches on the image. |
 | | Now etchers could do the highly detailed work that was previously the monopoly of engravers, and Callot. |
| en.wikipedia.org /wiki/Etching (2236 words) |
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