| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a pigment dispersed nonaqueous inkjet ink excellent in dispersibility, fluidity and printing stability. <P>SOLUTION: The nonaqueous inkjet ink comprises a vinyl-based pigment dispersing agent, a pigment and a liquid vehicle, wherein the vinyl-based pigment dispersing agent contains in a vinyl-based polymer main chain a carboxy-containing unit (G) represented by the formula in the figure [wherein, R<SP>1</SP>is H or methyl; X<SP>1</SP>is -O- or -NH-; X<SP>2</SP>is -(-R<SP>a1</SP>-O-)<SB>m1</SB>- (wherein, R<SP>a1</SP>is a bivalent hydrocarbon; and m1 is 1-50); X<SP>3</SP>is -(-CO-R<SP>b1</SP>-O-)<SB>m2</SB>- (wherein, R<SP>b1</SP>is a bivalent hydrocarbon; and m2 is 0-20); and Y<SP>1</SP>is a carboxy-containing aromatic-based acid anhydride residue]. <P>COPYRIGHT: (C)2007,JPO&INPIT |
