Traube / Diachromie
“In the imbibition process, a dye image is transferred from a gelatin relief image to a receiving layer made either of paper or film. Charles Cros described this method of “hydrotypie” transfer printing in 1880 and suggested it could be used to transfer three individual dye images in register. The Hydrotype (1881) and the Pinatype (1905) were examples of the early use of this process. One of the notable, though not widely used, relief matrix processes was developed by Dr Arthur Traube and introduced in 1929 as the Uvatype, which was an improved version of his earlier Diachrome (1906) and dye mordant Ufachrome (1916) processes. The Eastman Wash-off Relief process (1935) was a refinement of the imbibition process that was replaced by the improved Dye Transfer process (1946-1993). The widest commercial application of the imbibition process was the Technicolor process, originally introduced as a two-color system in 1916, for producing motion-picture release prints.”
(Hirsch, Robert (2011): Exploring Color Photography. From Film to Pixels. Elsevier Focal Press: Oxford; Burlington, MA, p. 25.)
Original Technical Papers and Primary Sources
Traube, W. (1906): A New Three-Colour Process. In: The British Journal of Photography, 53, p. 942.
Traube, W. (1906): A New Three-Colour Printing Process. In: The British Journal of Photography, , 53, pp. 944-945.
Pénichon, Sylvie (2013): Twentieth Century Colour Photographs. The Complete Guide to Processes, Identification & Preservation. London, Los Angeles: Thames & Hudson, on pp. 275–276.