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US08729153B2 Aqueous pigment dispersion for ink-jet ink and ink-jet ink composition 有权
用于喷墨油墨和喷墨油墨组合物的水性颜料分散体

Aqueous pigment dispersion for ink-jet ink and ink-jet ink composition
Abstract:
An aqueous pigment dispersion which contains C.I. Pigment Yellow 74, a styrene-acrylic-based resin with an acid number of 100 to 250, and a basic compound, wherein the styrene-acrylic-based resin includes at least styrene-based monomer units, acrylic acid monomer units, and methacrylic acid monomer units as component monomer units, and the weight average molecular weight of the resin is within a range from 7,000 to 15,000.
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