INK FOR INKJET, INK SET FOR INKJET, AND INKJET IMAGE FORMATION METHOD AND INKJET RECORD USING THE SAME

摘要

PROBLEM TO BE SOLVED: To provide an ink for inkjet which has a secondary color reproducibility and resistances to water and bleeding; and an ink set for inkjet, an inkjet image formation method, and an inkjet record, all of these using the ink for inkjet.

SOLUTION: The ink for inkjet contains water, an aqueous solvent, and colored fine particles composed of a resin containing or covering a dye. The colored particles have a volume-average particle size (A) of 10-90 nm and satisfy the conditions: (1) a volume average particle size (B) after concentrated to a concentration ratio of 40% and redispersed is 2-10 times that (A) before concentrated, being 50-30 nm and (2) a volume average particle size (C) after concentrated to a concentration ratio of 70% and redispersed is 300 nm or more.

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