| 释义 |
ˌcounter-ˈetch, v. Printing.
[counter- 1.]
trans. To treat (a lithographic plate) with diluted acid in order to clean it and make it receptive to grease. Hence as n., this process, or the acid solution used for it. So ˌcounter-ˈetching vbl. n.
1924H. J. Rhodes Art Lithogr. (ed. 2) x. 94 It is a safe practice, before laying down the transfer on a zinc or aluminium plate, to wash and counter-etch (sensitize) it. 1960Glaister Gloss. Book 89/2 Counter-etching, a stage in the preparation of lithographic printing plates, immediately after graining, and before transferring the image, whereby the plates are sensitized or counter-etched. 1967Karch & Buber Offset Processes vi. 212 The counter-etch solution is composed of an acid mixed with water. Ibid. 535 Counter etch, a mild acid solution used for cleaning metal offset plates. 1967E. Chambers Photolitho-Offset 270 Counter-etch, the chemical treatment of a lithographic surface with diluted acids to remove oxides and dirt to make it sensitive to grease prior to producing an image on it. |