Patent ID: 8053169

Claim:
An ink composition for inkjet recording comprising: (A) an N-vinyllactam; (B) a polymerization initiator; (C) a basic compound; and (E) a basic dispersant; wherein the content of the N-vinyllactam (A) is at least 15 wt % but no greater than 40% of the total weight of the ink composition, the viscosity of the ink composition at 25° C. is 3 to 50 mPa·s, the basic compound is an organic amine compound having a polymerizable group is at least one selected from the group consisting of N,N-dimethylaminoethyl (meth)acrylate, N,N-diethylaminoethyl (meth)acrylate, and an aminoacrylate in which a polyfunctional acrylate monomer or polyester acrylate is modified with an amine, the basic dispersant is a polymeric dispersant having an amine value that is larger than its acid value, the difference between the acid value and the amine value of the polymeric dispersant is at least 5 mg KOH/g, and the polymerization initiator (B) consists of a radical polymerization initiator.