| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an ink composition for inkjet recording being excellent in storage stability and being also excellent in delivery stability and clogging recovery property. <P>SOLUTION: The ink composition for inkjet recording contains at least a pigment, a dispersant for dispersing the pigment, a polymer and water. C.I. pigment green 36 is used as the pigment, and as the dispersant, it contains the polymer containing a copolymer resin selected from the group consisting of a styrene-(meth)acrylic acid copolymer resin, a styrene-methylstyrene-(meth)acrylic acid copolymer resin or a styrene-maleic acid copolymer resin, a (meth)acrylic acid-(meth)acrylate copolymer resin and a styrene-(meth)acrylic acid-(meth)acrylate copolymer resin, and a urethane resin and containing at least 50 mass% or more of benzyl acrylate and 15 mass% or less of (meth)acrylic acid as monomer constitution components and having an acid value in the range of 50-200 mgKOH/g and a weight average molecular weight of 20,000-120,000. <P>COPYRIGHT: (C)2010,JPO&INPIT |
