Patent ID: 6893798
Filing Date: 2005-05-17
Classification: B41C,B41N,C11D

Abstract:
1. Direct-to-plate method of lithographic printing with a reusable substrate having a hydrophilic surface comprising the steps of: (a) making a negative-working imaging layer by coating on the hydrophilic surface a solution comprising hydrophobic thermoplastic particles and a hydrophilic binder; (b) making a printing master having ink-accepting areas by image-wise exposing the imaging layer to heat or light; (c) applying ink and fountain solution to the printing master; (d) removing the ink-accepting areas from the printing master by supplying a micro-emulsion comvrising a mixture of a cyclic organic compound containing at least one double bond, an alcohol, water and an emulsifying agent to the imaging layer; and (e) treating the micro-emulsion according to a method comprising: