METHOD FOR PRODUCING AQUEOUS PIGMENT DISPERSION
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United States of America
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Dec 16, 2021
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Nov 7, 2019
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Nov 7, 2019
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The problem to be solved by the present invention is to provide a method for producing an aqueous pigment dispersion that has certain dispersion stability with which the formation of coarse particles with time and the settling of a pigment and the like with time can be reduced and that can be used for producing an ink having excellent discharge stability. The present invention relates to a method for producing an aqueous pigment dispersion, the method including kneading a composition including a pigment including one or more materials selected from the group consisting of a violet pigment, a green pigment, and an orange pigment and a resin, the composition having a nonvolatile content of 50% by mass or more, under predetermined conditions and subsequently performing a centrifugation treatment.
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