Patent ID: 7338749

Claim:
A process for making a flexographic printing plate, the process comprising: a step of forming an image mask on a flexographic printing starting plate by discharging an oil-based ink by an electrostatic ink-jet method, the flexographic printing starting plate having a support and a photosensitive resin layer provided thereon; wherein the oil-based ink discharged is overprinted a plurality of times; wherein the oil-based ink comprises a coloring agent that absorbs or reflects light to which it is exposed; and wherein the oil-based ink is a dispersion in which charged particles of a dye or a pigment are dispersed in an insulative organic solvent, a step of subjecting the photosensitive resin layer to overall exposure via the image mask, wherein the photosensitive resin layer used has a surface resistivity of 1×10 10 Ω/□ or more; and a step of developing the photosensitive resin layer thus exposed.