Aqueous pigment dispersion and method for producing the same
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United States of America Patent
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May 11, 2021
Grant Date -
Oct 24, 2019
app pub date -
Apr 4, 2019
filing date -
Apr 18, 2018
priority date (Note) -
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Abstract
It is an object of the present invention to provide an aqueous pigment dispersion that can be used to produce an ink with high ejection stability and long-term storage stability and has high dispersibility with a lower likelihood of causing aggregation or precipitation of pigments. The present invention relates to an aqueous pigment dispersion containing a pigment dispersing resin (A), a pigment (B), an organic solvent (C), and an aqueous medium (D), wherein the pigment dispersing resin (A), the pigment (B), and the organic solvent (C) have specified Hansen solubility parameters.
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