Patent ID: 8216769

Claim:
A heat-sensitive negative-working lithographic printing plate precursor comprising: a support having a hydrophilic surface or which is provided with a hydrophilic layer, and a coating provided thereon, the coating including an image-recording layer which includes hydrophobic thermoplastic polymer particles, a binder, and an infrared absorbing dye; wherein the amount of the infrared absorbing dye, without taking into account an optional counter ion, is more than 0.80 mg per m 2 of a total surface of the thermoplastic polymer particles, measured by Hydrodynamic Fractionation; the amount of hydrophobic thermoplastic polymer particles relative to a total weight of all ingredients of the imaging layer is at least 60%; and the hydrophobic thermoplastic polymer particles have an average particle diameter, measured by Photon Correlation Spectroscopy, of more than 20 nm and less than 36 nm.