Laser transfer medium for imaging printing plate
AssigneeScott Paper Company
InventorArnold C. Eames
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Abstract
A transfer film comprising a transparent substrate having thereon a coating comprising particles which absorb laser energy and a self-oxidizing binder is improved by overlying the coating with a layer of ink - receptive resin. Material is transferred by a laser beam from the transparent carrier film to a lithographic surface, thereby producing a planographic printing plate and a film having clear areas corresponding to the image on the plate.
Claims1
In a transfer film for use in making an imaged printing plate by directing laser energy through a transparent substrate having thereon a coating comprising particles which absorb said laser energy and a self-oxidizing binder, the improvement which comprises a layer of ink-receptive resin overlying said coating.
Dependencies are inferred from the claim text.