INK COMPOSITION AND INKJET RECORDING METHOD AND RECORDED MATTER USING THE SAME

摘要

Problem to be Solved: To provide an ink composition capable of giving printed matter excellent in gas fastness and light fastness and free from generation of a bronzing phenomenon, an inkjet recording method using the ink composition, and recorded matter which is recorded by the recording method. Means to Solve the Problem: An ink composition comprising at least water, a cyan dye represented by the formula shown below and an aromatic compound having a carboxyl group and/or a salt thereof; an inkjet recording method using the composition; and recorded matter which is recorded by the recording method.
[wherein M represents a hydrogen atom, a metal element, a metal oxide, a metal hydroxide or a metal halide, R 1 to R 4 each independently represents -SO 2 Z, and Z represents a substituted or unsubstituted alkyl group, a substituted or unsubstituted cycloalkyl group, a substituted or unsubstituted alkenyl group, a substituted or unsubstituted aralkyl group, a substituted or unsubstituted aryl group or a substituted or unsubstituted heterocyclic group, provided that at least one of four Z's has an ionic hydrophilic group as a substituent].