ATBECHDEDKESFRGBGRITLILUNLSEMCPTIESILTLVFIROMKCYALTRBGCZEEHUPLSKBAHRISYU........JDIM360 (Ver 1.5 21 Nov 2005) - 1620000/01614538EUROPEAN PATENT APPLICATIONA320060621EP05105726.320050628enenen0410324520040708EP2006062120062520060111200602

B41C 1/10 20060101AFI20051021BHEP

B41M 5/36 20060101ALN20060518BHEP

deVerfahren zur Herstellung einer negativarbeitenden, wärmeempfindlichen, lithographischen DruckplattenvorstufeenMethod for making a negative working, heat-sensitive lithographic printing plate precursor.frProcédé pour la fabrication d'un précurseur de type négatif d'une plaque d'impression lithographique thermosensibleAGFA-GEVAERT00200395GSGN04051 EP-2Septestraat 272640 MortselBEVermeersch, Joan AGFA-GEVAERTCorporate IP Department 3800 Septestraat 272640, MortselBEKokkelenberg, Dirk AGFA-GEVAERTCorporate IP Department 3800 Septestraat 272640, MortselBEVan Aert, Huub AGFA-GEVAERTCorporate IP Department 3800 Septestraat 272640, MortselBEATBEBGCHCYCZDEDKEEESFIFRGBGRHUIEISITLILTLUMCNLPLPTROSESISKTRALBAHRLVMKYU20060621200625

A method for making a heat-sensitive negative-working lithographic printing plate precursor is disclosed comprising the steps of

(i) preparing a coating solution comprising hydrophobic thermoplastic polymer particles and a hydrophilic binder;
(ii) applying said coating solution on a support having a hydrophilic surface or which is provided with a hydrophilic layer, thereby obtaining an image-recording layer;
(iii) drying said image-recording layer;

characterized in that said hydrophobic thermoplastic polymer particles have an average particle size in the range from 45 nm to 63 nm,
and that the amount of said hydrophobic thermoplastic polymer particles in the image-recording layer is at least 70 % by weight relative to the dried image-recording layer.