公开(公告)号：US08623126B1

公开(公告)日：2014-01-07

申请号：US13537704

申请日：2012-06-29

申请人： Thomas B. Brust ,  Yongcai Wang ,  Brian P. Cleary ,  Dale E. DeCann

发明人： Thomas B. Brust ,  Yongcai Wang ,  Brian P. Cleary ,  Dale E. DeCann

IPC分类号： C09D11/02

CPC分类号： C09D11/38 ,  B82Y30/00 ,  C09D11/322

摘要： An inkjet ink composition comprising: (a) water; (b) dispersed pigment particles; and (c) at least one humectant; wherein the pigment particles are present from about 4.5% by mass to about 10% by mass, and the pigment particles have a mass weighted mean Stoke's diameter of from about 35 nm to about 70 nm wherein the Stoke's diameter is determined by differential centrifugal sedimentation of the particles through a fluid in a disc centrifuge. The present invention employs specified sedimentation particle sizing criteria for selection of appropriate pigment particle sizes at high pigment concentrations to obtain improved ink performance. Further embodiments of the invention also demonstrate that the criticality of humectant types and levels employed in an ink can also become much more important at high pigment loading in order to obtain desired performance.

摘要翻译： 一种喷墨油墨组合物，其包含：（a）水; （b）分散的颜料颗粒; 和（c）至少一种湿润剂; 其中所述颜料颗粒的存在量为约4.5质量％至约10质量％，并且所述颜料颗粒的质量加权平均斯托克斯直径为约35nm至约70nm，其中所述斯托克斯直径通过差异离心沉降 颗粒通过盘式离心机中的流体。 本发明采用规定的沉降颗粒施胶标准，以在高颜料浓度下选择合适的颜料颗粒尺寸以获得改进的油墨性能。 本发明的另外的实施方案还表明，为了获得所需的性能，在高颜料负载下，在油墨中使用的湿润剂类型和水平的关键性也可以变得更加重要。

公开(公告)号：US20140000477A1

公开(公告)日：2014-01-02

申请号：US13537704

申请日：2012-06-29

申请人： Thomas B. Brust ,  Yongcai Wang ,  Brian P. Cleary ,  Dale E. DeCann

发明人： Thomas B. Brust ,  Yongcai Wang ,  Brian P. Cleary ,  Dale E. DeCann

IPC分类号： C09D11/10 ,  C09D11/02 ,  B82Y30/00

CPC分类号： C09D11/38 ,  B82Y30/00 ,  C09D11/322

摘要： An inkjet ink composition comprising: (a) water; (b) dispersed pigment particles; and (c) at least one humectant; wherein the pigment particles are present from about 4.5% by mass to about 10% by mass, and the pigment particles have a mass weighted mean Stoke's diameter of from about 35 nm to about 70 nm wherein the Stoke's diameter is determined by differential centrifugal sedimentation of the particles through a fluid in a disc centrifuge. The present invention employs specified sedimentation particle sizing criteria for selection of appropriate pigment particle sizes at high pigment concentrations to obtain improved ink performance. Further embodiments of the invention also demonstrate that the criticality of humectant types and levels employed in an ink can also become much more important at high pigment loading in order to obtain desired performance.

摘要翻译： 一种喷墨油墨组合物，其包含：（a）水; （b）分散的颜料颗粒; 和（c）至少一种湿润剂; 其中所述颜料颗粒的存在量为约4.5质量％至约10质量％，并且所述颜料颗粒的质量加权平均斯托克斯直径为约35nm至约70nm，其中所述斯托克斯直径通过差异离心沉降 颗粒通过盘式离心机中的流体。 本发明采用规定的沉降颗粒施胶标准，以在高颜料浓度下选择合适的颜料颗粒尺寸以获得改进的油墨性能。 本发明的另外的实施方案还表明，为了获得所需的性能，在高颜料负载下，在油墨中使用的湿润剂类型和水平的关键性也可以变得更加重要。