COATING COMPOSITION AND PRINTING MEDIUM

摘要

A printing medium comprising (a) a substrate having at least one surface, and (b) a coating on the surface wherein the coating comprises (1) binder comprising poly[(meth)acrylic] acid and poly(vinyl alcohol), and (2) particulate hydrophilic amorphous silica dispersed in the binder, wherein at least 90 percent by weight of the particulate hydrophilic amorphous silica has gross particle sizes in the range of from 0.01 to 25 mu m. An aqueous coating composition comprising the above binder and amorphous silica is also described.