Member for a mask film, process for producing a mask film using the member and process for producing a printing plate of a photosensitive resin using the mask

Abstract

A member for a mask film comprising a substrate film transmitting ultraviolet light and a resin layer not transmitting ultraviolet light which is disposed on one face of the substrate film, allows elimination of color by irradiation with a laser beam, has a transmittance of ultraviolet light of 0.1% or smaller and has a thickness of 0.1 to 30 μm; a process for producing a mask film using the member; and a process for producing a printing plate of a photosensitive resin using the mask film. The mask is advantageously used for preparing a printing plate such as a photosensitive printing plate. The member for a mask provides the mask film by etching with a laser beam.

Dependencies are inferred from the claim text.