The development of multicolor printing

On the basis of the technological changes in single and multicolor printing, we would like to present
Dr. Hell's inventive step.

The article "Development of Multicolor Printing" illustrates the unimaginable effort that was required in the time of lithography (around 1800) even to the beginnings of offset and gravure printing, for the reproduction of image and text.  Only with the inventions and the devices of Dr. Hell this effort could be gradually reduced from 1950.

Further articles will explain the significance of these inventions from 1950 to 1998 in detail. (German)
   Strukturwandel in der Reproduktionstechnik  Hanns-Peter Schöbel  2017  
   Hanns-Peter Schöbel  2017  
   Der Um- bzw. Überdruck  Hanns-Peter Schöbel  2017  
  Scanner: Spezialanwendungen  Ralf Tiede  2017  
        A small guide through the history of printing
 Hanns-Peter Schöbel  2017  
  Die EKG Story (Elektron Klischee GmbH)
       Strukturwandel in der Reproduktionstechnik
 Hanns-Peter Schöbel  2019