The present invention relates to a microencapsulated pigment in which
pigment particles having cationic groups on their surfaces are coated
with a polymer having repeating structural units derived from an anionic
polymerizable surfactant having at least an anionic group, a hydrophobic
group and a polymerizable group, and a microencapsulated pigment in which
pigment particles having anionic groups on their surfaces are coated with
a polymer having repeating structural units derived from a cationic
polymerizable surfactant having a cationic group, a hydrophobic group and
a polymerizable group. Further, the invention relates to a process for
producing the microencapsulated pigment, an aqueous dispersion containing
the microencapsulated pigment, and an ink jet recording ink containing
the aqueous dispersion.