| 摘要 |
<p>PROBLEM TO BE SOLVED: To obtain the subject aqueous ink useful as e.g. an ink for producing printed wiring boards such as etching resist, solder resist, solder resist ink or marking ink, or as e.g. a resist for producing name plates, readily removable from printing plates through washing with water, and high in water resistance of the photocured film prepared therefrom SOLUTION: This ink comprises (A) a water-soluble photosensitive resin prepared by introducing styrylpyridinium or styrylquinolinium group into a polyvinyl alcohol-based polymer, (B) a compound having at least one photoreactive ethylenic unsaturated group in the molecule, (C) a photopolymerization initiator, and (D) water.</p> |
