INKJET INK COPOLYMER, INKJET INK PIGMENT DISPERSING ELEMENT USING SAME, AND INKJET INK

摘要

The purpose of the present invention is to provide an inkjet ink polymer which is capable of providing, at a high productivity, an inkjet ink capable of forming a printed product exerting excellent weather resistance and fixing properties (rubfastness) and exhibiting excellent print density (coloring properties). The aforementioned inkjet ink polymer is also capable of providing, at a high productivity, a pigment dispersing element exerting excellent dispersibility. An inkjet ink co-polymer containing 10 to 99 weight% of a cyclohexyl methacrylate unit and 1 to 90 weight% of an acrylic acid unit. The aforementioned purpose is achieved by means of an inkjet ink pigment dispersing element containing the aforementioned inkjet ink co-polymer and a pigment.