Heat mode recording material and method for making a lithographic plate
AssigneeAgfa-Gevaert
InventorsJohn W. Edwards, Sr., Luc Leenders, Yves Verburgh, Joan Vermeersch, Ronald Schuerwegen
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Abstract
The present invention provides a heat mode recording material comprising on a support having a hydrophilic surface or being provided with a hydrophilic layer, a metallic layer and on top thereof a hydrophobic layer having a thickness of less than 50 nm and there is further provided a method for making a lithographic plate therewith.
Claims2
A heat mode recording material for making a lithographic printing plate comprising on a support having a hydrophilic surface or being provided with a hydrophilic layer, a layer of metallic silver and on top thereof a hydrophobic layer which adheres to said layer of metallic silver and having a thickness of less than 50 nm, said hydrophobic layer containing a hydrophobizing agent having a mercapto-group and one or more hydrophobic substituents, said hydrophobizing agent corresponds to one of the following formulas:
- ##STR2## wherein R.sup.5 represents hydrogen or an acyl group, R.sup.4 represents alkyl, aryl or aralkyl.
A heat mode recording material comprising on a support having a hydrophilic surface or being provided with a hydrophilic layer, a metallic layer and on top thereof a hydrophobic layer containing a hydrophobizing agent and having a thickness of less and 50 nm, said hydrophobizing agent corresponding to one of the following formulas:
- ##STR3## wherein R.sup.5 represents a hydrogen or an acyl group, R.sup.4 represents alkyl, aryl or aralkyl.
Dependencies are inferred from the claim text.