Patent ID: 7160372

Claim:
An ink jet ink comprising at least a coloring material, wherein: the coloring material comprises one of a compound represented by the following general formula (I) or a salt thereof; a content (weight %) of the coloring material is 3.0 weight % or more with respect to a total weight of the ink jet ink; and in a dispersion distance distribution, measured by a small-angle X-ray scattering method, of molecular aggregates in the ink jet ink whose coloring material concentration is adjusted to 3.0 weight %, a dispersion distance d 75 value corresponding to 75% of the distribution is 6.50 nm or more and 7.10 nm or less: wherein M represents an alkali metal or ammonium; R 1 and R 2 each independently represent a hydrogen atom, a sulfonic group, or a carboxyl group provided (that R 1 and R 2 are not simultaneously a hydrogen atom; Y represents a chlorine atom, a hydroxyl group, an amino group, or a monoalkylamino or dialkylamino group; l represents 0 to 2, m represents 1 to 3, and n represents 1 to 3 provided that l+m+n=3 to 4; and a substitution position of a substituent is one of 4 position and 4′ position.