Patent ID: 8399545
Filing Date: 2013-03-19
Classification: C09B,C09D

Abstract:
1. An aqueous ink for inkjet recording, comprising vinyl polymer particles containing A and B and a water-soluble solvent: A: an azo pigment represented by the following formula (1), its tautomer, or a salt or hydrate thereof; B: a vinyl polymer containing (a) a hydrophobic structural unit having an aromatic ring bonded to the polymer main chain through a linking group and (b) a hydrophilic structural unit: wherein Q represents a 5- to 7-membered heterocyclic ring together with the carbon atoms, W represents an alkoxy group, an amino group, an alkyl group or an aryl group, X and wherein the hydrophobic structural unit (a) contains (a1) a hydrophobic structural unit represented by the following formula (I): wherein R