INK COMPOSITION, INKJET-RECORDING METHOD, PRINTED MATTER, METHOD FOR PRODUCING LITHOGRAPHIC PRINTING PLATE AND LITHOGRAPHIC PRINTING PLATE

摘要

PROBLEM TO BE SOLVED: To provide an ink composition curing with the irradiation of a radiation and also having good thermal stability, an inkjet-recording method by using the ink composition and a printed matter obtained by the inkjet-recording method, also a lithographic printing plate having high plate wear resistance by using the ink composition and a method for producing the lithographic printing plate.

SOLUTION: This ink composition contains (a) a diaryliodonium salt having ≥3 electron-donating groups in total on an aryl ring, (b) a cationically polymerizable compound and (c) a coloring matter. The inkjet-recording method by using the ink composition, the printed matter and the lithographic printing plate obtained by using the ink composition, and the method for producing the lithographic printing plate are also provided.

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