Patent ID: 8177898

Claim:
A water-based ink for ink jet recording comprising a coloring agent and water, wherein the coloring agent comprises a dye represented by the following general formula (1), and in the ink, an amount of glycerin is set so as to satisfy the following condition (A): 3.5 X −5 ≦Y 1≦3.5 X (A) X: an amount of a dye represented by general formula (1) relative to a total amount of the ink (wt %) Y1: an amount of glycerin relative to a total amount of the ink (wt %) wherein the amount of glycerin relative to a total amount of the ink (Y1) is 8.5 wt % or lower; wherein in the general formula (1), R 1 , R 2 , Y 1 , and Y 2 each represents a monovalent group, provided that R 1 , R 2 , Y 1 , and Y 2 may be the same or different; X 1 and X 2 , each independently, represents an electron attractive group, provided that X 1 and X 2 may be the same or different; Z 1 and Z 2 , each independently, represents a hydrogen atom, a substituted or unsubstituted alkyl group, a substituted or unsubstituted alkenyl group, a substituted or unsubstituted alkynyl group, a substituted or unsubstituted aralkyl group, a substituted or unsubstituted aryl group, or a substituted or unsubstituted heterocyclic group, provided that Z 1 and Z 2 may be the same or different; and M represents a hydrogen atom, an ammonium ion, or a quaternary ammonium ion.