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发明授权
CN1990621B 喷墨记录用水性油墨 有权

喷墨记录用水性油墨
摘要：
本发明涉及[1]含有体积为3.5～20ml/g的有机颜料的喷墨记录用水分散体；[2]包含含有体积为3.5～20ml/g的颜料的水不溶性聚合物粒子的喷墨记录用水分散体；[3]含有通过粉碎分级处理法得到的有机颜料的喷墨记录用水分散体，其中有机颜料的D50为2～15μm，D90为60μm以下；[4]含有前述水分散体、且喷出可靠性、图像浓度、图像均匀性以及耐摩擦性优异的喷墨记录用水性油墨；以及[5]前述水分散体的制造方法。
摘要（英）：

The present invention relates to [1] a water dispersion for ink-jet printing containing an organic pigment having a bulk of 3.5 to 20 mL/g; [2] a water dispersion for ink-jet printing including water-insoluble polymer particles containing a pigment having a bulk of 3.5 to 20 mL/g; [3] a water dispersion for ink-jet printing containing an organic pigment obtained by a pulverization/classification treatment wherein the organic pigment has D50 of 2 to 15 [mu]m and D90 of 60 [mu]m or less; [4] a water-based ink for ink-jet printing containing the respective water dispersions which is excellent inelection reliability, image density, image uniformity and rubbing resistance; and [5] a process for producing the respective water dispersions.

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