| 摘要 |
PROBLEM TO BE SOLVED: To provide a water-dispersible pigment easily dispersible in water and an ionic aqueous solution, having the excellent long term aqueous dispersion stability and coating stability, and a pigment water dispersion containing the water-dispersible pigment. SOLUTION: A surface treatment is carried out to a pigment powder with an alkoxy silane compound represented by general formula (1), (wherein n and k are each an integer of 1 or more, m is an integer from 1 to 3, x and y are each independently an integer from 1 to 3 while satisfying x+y=4, and R<SB>1</SB>, R<SB>2</SB>are each a 1-10C hydrocarbon group), and an alkoxy silane compound represented by general formula (2): Si(OR<SB>3</SB>)<SB>4</SB>(wherein R<SB>3</SB>is a 1C or higher saturated hydrocarbon group) at the same time. COPYRIGHT: (C)2011,JPO&INPIT |
