Autotype Wet Carbon

“Introduced by the Autotype Company in 1944, the Autotype Wet Carbon Process was a variant of the traditional carbon process with novelty wet-printing pigment papers. Considerable time was saved when printing with this material as the pigment papers, sensitized and squeegeed immediately onto individual sheets of waxed celluloid, were exposed by contact through the celluloid base while still wet. After exposure, the sandwiches were immersed and developed in warm water and the colored gelatin reliefs transferred in register onto paper to form a full-color image (Spencer 1948). Wet carbon materials were less light-sensitive than regular carbon papers; they were mainly used by amateurs, and the results obtained were inferior to those obtained with the conventional dry process (Nadeau 1997: 468). The manufacturing of these materials ceased around 1950.”