阅读说明：本技术 印刷介质 (Printing medium ) 是由 C·E·斯泰兴 巫绪龙 周晓奇 A·韦斯曼 于 2019-04-30 设计创作，主要内容包括：一种印刷介质可包括基于纤维素的纸基底,其具有第一表面和与第一表面相反的第二表面。可用带电处理层处理第一表面。吸墨层可位于带电处理层上。吸墨层可包含聚合物粘合剂和表面活化火成二氧化硅粒子。表面活化火成二氧化硅粒子可包含用带电多价铝盐和有机硅烷试剂表面活化的火成二氧化硅粒子。更详细地,受墨层可位于吸墨层上。受墨层可包含无定形二氧化硅粒子、氧化铝粒子或其组合。(A print medium may include a cellulose-based paper substrate having a first surface and a second surface opposite the first surface. The first surface may be treated with a charged treatment layer. An ink-receptive layer may be positioned on the charged treatment layer. The ink receptive layer may comprise a polymeric binder and surface activated fumed silica particles. The surface-activated fumed silica particles can comprise fumed silica particles surface-activated with a charged multivalent aluminum salt and an organosilane reagent. In more detail, the ink-receiving layer may be positioned on the ink-receiving layer. The ink-receiving layer may comprise amorphous silica particles, alumina particles, or a combination thereof.)