Patent ID: 8003299

Claim:
A photosensitive laminate for relief printing comprising: a support substrate (A); a photosensitive resin layer (B) provided on said support substrate (A), said photosensitive resin layer (B) having a photosensitivity to light in a wavelength region of 300 nm to 400 nm; and an ink holding layer (C) provided directly on said photosensitive resin layer (B) and formed from a water-soluble composition, a light-shielding pattern diffused inside said layer (C), said light-shielding pattern comprising a light-shielding ink containing a water-soluble dye wherein said light-shielding ink is present only in said ink holding layer (C), and is formed into the pattern of the light-shielding pattern, wherein said light-shielding ink absorbs light in the wavelength region of 300 nm to 400 nm, and wherein an integral value of light absorbance (light path length of 10 mm) of said light-shielding ink in a wavelength region of 300 nm to 400 nm is 45 nm times Abs, or more, when said light-shielding ink has been diluted 5,000 times with water.