| 摘要 |
PURPOSE:To obtain the subject ink, containing a specific unsaturated group- containing polycarboxylic acid resin, etc., good in resistance to ground fouling, excellent in curability with ultraviolet and electron rays and utilizable for lithographic printing without using damping water and capable of providing good printing operating efficiency and printing effects. CONSTITUTION:The objective ink containing an unsaturated group-containing polycarboxylic acid resin obtained by reacting an epoxy resin with (meth)acrylic acid and further reacting the resultant reaction product with a polybasic carboxylic acid (anhydride) (e.g. maleic acid) and a photopolymerization initiator (e.g. 2-chlorothioxanthone) as an optional component as a varnish component. |
