INKJET INK, METHOD OF MANUFACTURING INKJET INK, INK CARTRIDGE, AND INKJET RECORDING DEVICE

摘要

An inkjet ink contains water, a hydrosoluble organic solvent, a pigment, polyvinyl pyrolidone, and a copolymer, wherein the copolymer contains a structure unit represented by Chemical formula 1,;where R1 represents a hydrogen atom or a methyl group, R2 is an alkyl group having one to four carbon atoms, M1+, M2+, M3+, and M4+ each, independently represent protons, alkali metal ions, or organic ammonium ions, anda structure unit represented by Chemical formula 2,;where R3 represents a hydrogen atom or a methyl group,a structure unit represented by Chemical formula 3,;where R4 represents a hydrogen atom or a methyl group, ora structure unit represented by Chemical formula 4,;where R5 represents a hydrogen atom or a methyl group.

主权项

1. An inkjet ink comprising:
water; a hydrosoluble organic solvent; a pigment; polyvinyl pyrolidone; and a copolymer, wherein the copolymer comprises a structure unit represented by Chemical formula 1, where R1 represents a hydrogen atom or a methyl group, R2 is an alkyl group having one to four carbon atoms, M1+, M2+, M3+, and M4+ each, independently represent protons, alkali metal ions, or organic ammonium ions, and a structure unit represented by Chemical formula 2, where R3 represents a hydrogen atom or a methyl group, a structure unit represented by Chemical formula 3, where R4 represents a hydrogen atom or a methyl group, or a structure unit represented by Chemical formula 4, where R5 represents a hydrogen atom or a methyl group.