Patent ID: 7754415

Claim:
A process for producing a laser engravable printing substrate, comprising the steps of: forming a photosensitive resin composition layer on a cylindrical support or a sheeted support; and applying light to the formed photosensitive resin composition layer to form a cured photosensitive resin layer, and then adjusting a thickness of the cured photosensitive resin layer and shaping a surface of the cured photosensitive resin layer, wherein the light applied to the photosensitive resin composition layer includes light having a wavelength of 200 nm or more and 450 nm or less, and an illuminance of light at a surface of the photosensitive resin composition layer is 20 mW/cm 2 or more when measured using a UV meter configured with a filter which transmits light with a relative spectral sensitivity peak at 350 nm, and 3 mW/cm 2 or more when measured using the UV meter configured with filter which transmits light with a relative spectral sensitivity peak at 250 nm.