METHOD FOR MANUFACTURING WATER-BASED DISPERSION OF SELF-DISPERSING POLYMER, WATER-BASED INK COMPOSITION, INK SET AND IMAGE FORMING METHOD

摘要

PROBLEM TO BE SOLVED: To provide a method for manufacturing a water-based dispersion of a self-dispersing polymer excellent in dispersion stability.

SOLUTION: A water-based dispersion of a self-dispersing polymer is manufactured by the manufacturing method including: obtaining a copolymer solution including a copolymer having a hydrophilic constituent unit and a hydrophobic constituent unit, and a solvent that dissolves the copolymer; obtaining a water-based dispersion of the copolymer through dispersion using the copolymer solution and water; and adding a water-soluble electrolyte to at least one of the copolymer solution and the water-based dispersion.

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