| abstract |
(57) [Problem] To provide a plate-making ink capable of obtaining a high-resolution, high-quality plate-making film on a hydrophilic film subjected to a hydrophilic treatment as a recording material of an ink jet printer. SOLUTION: This is a plate-making ink used for a plate-making film having a layer mainly composed of a polymer compound provided on a transparent substrate, and is a water-soluble azo dye selected from mono or disazo dyes. , Wavelength 350-450nm Contains a yellow dye having high absorbency to light. |