公开(公告)号：US20080119593A1

公开(公告)日：2008-05-22

申请号：US11604127

申请日：2006-11-22

申请人： Rodney Stramel ,  Paul Geldenhuys ,  Richard Power ,  Malan Calitz ,  Jamie Lowndes ,  John Kleyn

发明人： Rodney Stramel ,  Paul Geldenhuys ,  Richard Power ,  Malan Calitz ,  Jamie Lowndes ,  John Kleyn

IPC分类号： C08K5/09

CPC分类号： C09D11/36

摘要： The present invention is drawn to ink compositions and methods for ink-jet recording. The ink compositions can include a milled pigment, a surfactant, a non-aqueous co-solvent system, and at least 2 wt % resin solubilized in the ink composition. The non-aqueous solvent system comprises a main co-solvent system, where each co-solvent of this system has a surface tension less than 32 dynes/cm at 25° C. The co-solvent system also includes gamma butyrolactone and a second co-solvent system. The second co-solvent system includes one or more co-solvent(s), each having a surface tension of greater than 32 dynes/cm at 25° C. The second co-solvent system or other components can optionally act to increase the overall surface tension of the ink composition as a whole.

摘要翻译： 本发明涉及用于喷墨记录的油墨组合物和方法。 油墨组合物可以包括研磨的颜料，表面活性剂，非水共溶剂系统和溶解在油墨组合物中的至少2重量％的树脂。 非水溶剂体系包括主要的助溶剂体系，其中该系统的每种共溶剂在25℃下的表面张力小于32达因/厘米。共溶剂系统还包括γ-丁内酯和第二共聚物 无溶剂体系 第二共溶剂系统包括一种或多种共溶剂，每种共溶剂在25℃具有大于32达因/厘米的表面张力。第二共溶剂系统或其它组分可以任选地增加总体 整个油墨组合物的表面张力。