Heat-sensitive imaging element
AssigneeAgfa-Gevaert
InventorLuc Leenders
Life of this patent
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Abstract
Heat-sensitive imaging element comprising a support carrying a binder layer, optionally an intermediate adhesive layer, and and a barrier layer that is ablatable by a laser beam or permeabilizable under the influence of a laser beam, wherein said binder layer contains at least one hydrophobizing agent capable of diffusing under the influence of heat through holes made in said barrier layer or through permeabilized parts of said barrier layer and capable of reacting with the oleophobic surface of a printing plate precursor brought in face-to-face contact with said barrier layer. The present invention also relates to a process for producing a lithographic printing plate, wherein use is made of such heat-sensitive imaging element.
Claims9
Heat-sensitive imaging element comprising a support carrying in the given sequence a binder layer containing a binder, optionally an intermediate adhesive layer, and a barrier layer that is ablatable by a laser beam or permeabilizable under the influence of a laser beam, wherein said binder layer contains at least one hydrophobizing agent with a weight ratio to the binder in said binder layer being from 2:1 to 1:5 capable of diffusing under the influence of heat through holes made in said barrier layer or through permeabilized parts of said barrier layer and capable of reacting with the oleophobic surface of a printing plate precursor brought in face-to-face contact with said barrier layer.
Dependencies are inferred from the claim text.