Imaging element for making lithographic printing plates with a decreased slippage in the press
AssigneeAgfa-Gevaert
InventorsEric Verschueren, Willem Cortens, Luc Wabbes, Guido Hauquier
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Abstract
According to the present invention there is provided an imaging element for making a lithographic printing plate, including on a first side of a flexible support a surface capable of being differentiated in oleophilic and oleophobic areas upon imaging and on a second side opposite to the first side a layer or a package of layers, characterized in that the layer or package of layers on the backside has a ratio of the squared value of the gravimetric water absorption (WA) in g/m2 over the mean roughness in μm greater than 20.
Claims9
An imaging element for making a lithographic printing plate, comprising on a first side of a flexible support a surface capable of being differentiated in oleophilic and oleophobic areas upon imaging and on a second side opposite to said first side a layer or a package of layers, wherein said layer or package of layers on the backside has a ratio of the squared value of the gravimetric water absorption (WA) in g/m2 over the mean roughness in μm greater than 20.
Dependencies are inferred from the claim text.