Description of the printing process in collotype
Summary of the technique
The collotype is a printing process in fat ink, the main characteristic of which is its possibility of reproducing images in halftone without weft, what […]
The collotype process
Invention of the process
The light sensitivity of bichromates : In 1797, the chemist Vauquelin, who had just discovered chromium in studying various combinations, found that some of the oxygenated compounds in […]
