| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an ink composition excellent in temporal stability and hardening sensibility of an ink. <P>SOLUTION: The ink composition is characterized by including pigments, water, a polymerizable compound, and a compound represented by a general formula (I) or the salt thereof (wherein R<SP POS="POST">1</SP>represents a divalent saturated or aromatic hydrogen carbide group or a heterocyclic group; R<SP POS="POST">2</SP>and R<SP POS="POST">3</SP>each independently represents a monovalent saturated or unsaturated hydrogen carbide or a heterocyclic group; R<SP POS="POST">4</SP>represents an ethylene group or a propylene group; X represents a sulfo group, a phosphonic acid group, a carboxyl group, or an ammonium group; Y represents an oxygen atom, or a sulfur atom; and n represents an integer of 0 to 10). <P>COPYRIGHT: (C)2012,JPO&INPIT |
