WATER-BASED INKJET INK AND PRINTED MATTER

Abstract: a water-based inkjet ink comprising a pigment, a surfactant (a), and a water-soluble organic solvent (b), in which the surfactant (a) includes an acetylenediol surfactant (a1) having an ethylene oxide structure and a propylene oxide structure, and having an hlb value of 10 or less; the water-soluble organic solvent (b) includes an alkanediol (b1) having 3 to 5 carbon atoms, and a glycol monoether (b2) having 4 to 10 carbon atoms; and a mass ratio ((b1)/(b2)) between a content of the alkanediol (b1) having 3 to 5 carbon atoms and a content of the glycol monoether (b2) having 4 to 10 carbon atoms is 0.8 to 12.

Inventor(s): Kazushi SUNAOSHI, Takanori NOMURA, Riho MORITA

CPC Classification: C09D11/38 (characterised by non-macromolecular additives other than solvents, pigments or dyes)

Search for rejections for patent application number 20250171651