Abstract: Inkjet ink for forming an image on a substrate, the inkjet ink comprising a pigment P, a first block copolymer dispersant D1 for dispersing the pigment P and a second block copolymer dispersant D2 for dispersing the pigment P, and an aqueous carrier; wherein said first block copolymer dispersant D1 is different from said second block copolymer dispersant D2, wherein each block copolymer dispersant D1, D2 comprises an anchoring segment A1, A2 for anchoring to the pigment P, wherein each of the block copolymer dispersant D1, D2 additionally comprises a matrix stabilization segment M for aqueous phase stabilization of the pigment P, wherein the anchoring segment A1 of the first block copolymer dispersant D1 comprises a repeating unit R1 and the anchoring segment A2 of the second block copolymer dispersant D2 comprises a repeating unit R2, wherein the repeating unit R1 is less hydrophobic than the repeating unit R2.

Abstract: Inkjet ink for forming an image on a substrate includes a pigment P, a block copolymer dispersant D for dispersing the pigment P, and an aqueous carrier. The block copolymer dispersant D includes an anchoring segment A for anchoring to the pigment P, where the block copolymer dispersant additionally comprises a matrix stabilization segment M for aqueous phase stabilization of the pigment. The anchoring segment A includes a repeating unit R1 and a repeating unit R2, different from R1, where the repeating unit R1 is less hydrophobic than the repeating unit R2, the repeating unit R1 includes a (poly)alkylene oxide coupled to a terminal group via a direct bond, a —C—O—C— ether bond or a —C—O—(C?O)—N— urethane bond, and the terminal group is selected from an alkyl group, an aryl group and combinations thereof.

Abstract: An inkjet printing process and an ink set for forming an image on a substrate by applying a plurality of inkjet inks of the ink set on the substrate. The plurality of inkjet inks include at least a first ink and a second ink, each ink comprising: a pigment and a block copolymer dispersant for dispersing the pigment. The block copolymer dispersant includes a first block and a second block where the second block is formed using at least one monomer M2, which monomer M2 is selected from the group consisting of a methacrylate and an acrylate, and where the monomer M2 is an anchoring monomer for anchoring to the pigment.