| abstract |
Disclosed is a dispersion resin which can be used as a dispersant for fine particles having a particularly small particle diameter and can form a fine particle dispersion having extremely high storage stability, and can be used for an inkjet which can realize high ejection stability and storage stability Provision of pigment ink. Dispersion resin used for dispersing particles in a solution, the structure having a cyclic structure segment which is a polymer forming a cyclic structure, and the cyclic structure segment is at least A dispersion resin obtained by polymerizing a monomer having a hydrophobic functional group, and an ink-jet pigment ink comprising the dispersion resin. [Selection figure] None |