INK COMPOSITION, IMAGE FORMING METHOD, PRINTED MATERIAL, AND GRAFT COPOLYMER

摘要

An ink composition includes a graft copolymer including a repeating unit having a partial structure represented by Formula (1) described below and a repeating unit having a hydrophilic group in which a graft chain includes the repeating unit and water.;

主权项

1. An ink composition comprising:
(a) a graft copolymer including a repeating unit (a-1) having a partial structure represented by Formula (1) and a repeating unit (a-2) having a hydrophilic group in which a graft chain includes the repeating unit (a-1); and (b) water wherein; in Formula (1), each of Ra and Rb independently represents a hydrogen atom or an alkyl group having 1 to 4 carbon atoms, at least one of Ra and Rb represents an alkyl group having 1 to 4 carbon atoms, Ra and Rb may be bonded each other to form a 4- to 6-membered alicyclic structure, and ‘*’ represents a bonding site.