Aqueous ink, ink jet recording method, ink cartridge, recording unit and ink jet recording apparatus

摘要

The invention provides an aqueous ink comprising a polymer having hydroxyl groups and a pigment, which can provide images excellent in scratch resistance and highlighter resistance and can inhibit the seeping out phenomenon of the polymer and the deterioration of storage stability and ejection characteristics even when it is stored for a long period of time. The aqueous ink comprises a polymer having hydroxyl groups and a pigment, wherein a proportion of a content of a polymer that is not adsorbed on the pigment out of the polymer having hydroxyl groups to the content of the pigment in the ink is 2.0 mass% or more, and a content (mass%) of the polymer that is not adsorbed on the pigment out of the polymer having hydroxyl groups is 0.20 mass% or less based on the total mass of the ink.