公开(公告)号：US20150344713A1

公开(公告)日：2015-12-03

申请号：US14653136

申请日：2013-12-10

Applicant: KAO CORPORATION

Inventor： Ryuma MIZUSHIMA ,  Tetsuya EGUCHI

IPC: C09D11/36 ,  C09D133/14

CPC classification number: C09D11/36 ,  B41J2/2107 ,  C09D11/322 ,  C09D11/326 ,  C09D133/14

Abstract: The present invention relates to an ink jet printing method for printing images or characters on a recording medium using a water-based ink, in which the water-based ink includes pigment-containing water-insoluble polymer particles A, water-insoluble polymer particles B, an organic solvent C and water; the water-insoluble polymer particles A includes a water-insoluble polymer (a) containing constitutional units derived from an ionic monomer (a-1), an aromatic ring-containing hydrophobic monomer (a-2) and a specific hydrophilic monomer (a-3), the constitutional unit derived from the hydrophilic monomer (a-3) being present in an amount of from 13 to 45% by mass; the organic solvent C includes one or more organic solvents having a boiling point of 90° C. or higher, and has an average boiling point of 250° C. or lower as a weighted mean value; and the recording medium has a water absorption of from 0 to 10 g/m2 as measured in a pure water contact time of 100 ms. The ink-jet printing method is excellent in spreading of the dot size, optical density, gloss and rub fastness when printed on a low-water absorbing recording medium.

Abstract translation: 本发明涉及一种使用水性油墨在记录介质上打印图像或字符的喷墨打印方法，其中水性油墨包括含颜料的水不溶性聚合物颗粒A，水不溶性聚合物颗粒B ，有机溶剂C和水; 水不溶性聚合物粒子A包含含有衍生自离子性单体（a-1），含芳香族环的疏水性单体（a-2）和特定亲水性单体（a-1）的结构单元的水不溶性聚合物（a） 3）中，来自亲水性单体（a-3）的结构单元的含量为13〜45质量％ 有机溶剂C包括一种或多种沸点为90℃以上的有机溶剂，平均沸点为250℃以下作为加权平均值; 记录介质的纯水接触时间为100ms时的吸水率为0〜10g / m2。 喷墨打印方法在打印在低吸水记录介质上时，点尺寸，光密度，光泽和耐擦牢性的扩展性优异。