Patent ID: 8470518

Claim:
A method for preparing a printing form from a photosensitive element comprising: a) providing the photosensitive element comprising a layer of a photosensitive composition comprising an elastomeric binder, a monomer, and a Norrish type II photoinitiator, wherein the photosensitive layer contains reinforcing particles that provide the layer with a transmittance to actinic radiation of less than 20%, wherein the reinforcing particles are selected from the group consisting of graphene, carbon nanotubes, and combinations thereof, and wherein the elastomeric binder includes pendant alkyl groups of 1 to 6 carbon atoms; b) exposing the photosensitive element to actinic radiation; and c) treating the exposed photosensitive element to form a relief surface suitable for printing, wherein the exposing step is an overall exposure to cure the layer, and the treating step engraves the photosensitive element with laser radiation to selectively remove portions of the cured layer.