photo-galvanographyn.
/ˌfəʊtə(ʊ)ɡalvəˈnɒɡrəfi/, U.S. /ˈˌfoʊdoʊˌɡælvəˈnɑɡrəfi/ Now historical.
A process for obtaining a relief printing plate from a photograph, in which a relief negative of the photograph is made in sensitized gelatin and a gutta-percha positive taken from this, which is then electroplated.
ΘΚΠ
society > leisure > the arts > visual arts > printmaking > photomechanical or process printing > [noun] > processes using zinc plate
photo-galvanography1856
photozincography1860
photozincotypy1886
1856 P. Pretsch Paper before Soc. Arts 23 Apr. The name of ‘photo-galvanography, or engraving by light and electricity’ has been given to the new art by Mr. Duncan Campbell Dallas.
1860 J. Timbs Stories of Inventors & Discoverers 438 The photographic property of this salt is also the foundation of M. Pretsch's photo-galvanography.
1872 Chambers's Encycl. 510/2 Photo-galvanography, a method of producing from a photograph an electrotype copper-plate in a state fit for printing.
2004 M. Daniel Beginnings of Photogravure in 19-cent. France in www.kamprint.com 3 Sept. (O.E.D. Archive) Pretsch's ‘photogalvanography’ consisted of the following steps: a light-sensitive mixture of dichromated gelatin was spread on a smooth glass plate and exposed to light through a transparent positive [etc.].
This entry has been updated (OED Third Edition, March 2006; most recently modified version published online March 2022).
<
n.1856