Photogravure

Photogravure

 

Photogravure is an intaglio printmaking process that combines photography and traditional etching. It involves transferring a photographic image onto a metal plate, typically copper, using a light-sensitive gelatin tissue. The tissue is exposed to a positive transparency or negative, hardening in areas where light passes through. After exposure, the tissue is carefully adhered to the plate and soaked in water, causing the unexposed areas to swell. The plate is then etched using a variety of acid strengths, creating recessed areas that hold ink. When printed, the plate produces a tonally rich and detailed image that captures the nuances of the original photograph. Photogravure requires a high level of skill and precision, as it involves both photographic and etching techniques.