| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an ink composition excellent in stability with time and capable of improving the glossiness of printed matters. <P>SOLUTION: An aqueous ink for inkjet recording includes the following components A, B and C. The component A is a disazo pigment having a specific structure, a tautomer thereof, or a salt or hydrate thereof. The component B is a vinyl polymer comprising a hydrophobic structural unit (a) and a hydrophilic structural unit (b). The component C is a graft polymer including a nonionic unit comprising poly(meth)acrylic acid ester including a polyoxyalkylene structure represented by general formula (I) and a unit having a polysiloxane structure (wherein Ra<SB POS="POST">1</SB>and Ra<SB POS="POST">2</SB>are each independently hydrogen or methyl; and x is 1 or 2). <P>COPYRIGHT: (C)2012,JPO&INPIT |
