PIGMENT DISPERSION, UV-CURABLE INKJET INK PRECURSOR, INKJET RECORDING METHOD, PRINTED MATTER AND MANUFACTURING PROCESS OF THE PIGMENT DISPERSION

摘要

PROBLEM TO BE SOLVED: To provide a pigment dispersion for preparing a UV-curable inkjet ink with a small viscosity variation, a stable composition and a minimal problem of the deterioration of dispersion.

SOLUTION: The pigment dispersion has a dispersion medium mainly composed of a resin-coated pigment containing a resin and a pigment with an average particle size of ≤250 nm and a cationic polymerizable compound with a viscosity of ≤30 mPa s at 25°C and a boiling point of ≥150°C at 1 atmospheric pressure. The content of the dispersion medium is ≥3 pts.wt. and ≤41 pts.wt. to the total amount of the dispersion medium. The content of the resin-coated pigment in the resin is ≥5% and ≤37%.

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