A Review of Dampening Systems for Lithographic Presses.

Various lithographic plate dampening mechanisms or systems, starting with a patent issued to Cooper in 1868 and ending with a patent issued to the Harris-Seybold Company in 1954 are considered. These are listed under contact or non-contact systems as best describes the individual devices. Finally, a list of required characteristics and desirable characteristics a Iithographic press dampening device should have is given.