"Flexo on a Roll at Newspapers" Rosalind C. Truitt, in Presstime (Dec. 1986), 11600 Sun-rise Valley Dr., Reston, Va. 22091.
Printing technology, commonly traced to Johannes Gutenberg's 15th-cen- tury wooden press, actually had Chinese roots. The 11th-century alche- mist Pi Sheng made moveable type from clay and glue. Formed into char- acters, the mix was melted on a plate coated with resin, wax, and paper ash, then solidified by cooling, and reheated to be detached.
Obviously, techniques...