| abstract |
On-press development of an imaged printing plate on a plate cylinder, in which ink is applied by an ink form roll, a blanket roll is in contact with the plate, a rubber roll is opposed to the blanket roll, and printable media passes between the blanket roll and the rubber roll. The plate comprises a substrate carrying an imaged coating, in which nonimage areas have cohesion C 1 , adhesion to the substrate A 1 , and adhesion to the applied ink A 3 and image areas have cohesion C 2 , adhesion to the substrate A 2 , and adhesion to the applied ink A 4 . The ink has cohesion C 3 and adhesion A 5 to the blanket roll. The nonimage areas have adhesion A 6 to the printable medium and the ink has adhesion A 7 to the medium. The adhesions and cohesions are such that the blanket roll pulls the ink from the plate and the ink pulls the nonimage areas from the substrate as undissolved particles that are transferred by the blanket with the ink to the printable media. |