| abstract |
An ink includes water; a coloring material, and a polymer including a structure unit represented by the following Chemical formula 1 and a structure unit represented by the following Chemical formula 2 or the following Chemical formula 3,where R and T each, independently represent hydrogen atoms or methyl groups, L and N each, independently represent single bonds or carbonyl groups, M and Q each, independently represent naphthyl groups or biphenyl groups, p represents an integer of from 2 to 12, and q represents an integer of from 1 to 3 |