To provide ink enabling an image having excellent coloring property and ozone resistance to be recorded.
Ink contains a first coloring material and a second coloring material. The first coloring material is a compound expressed by general formula (1) (in the formula, each of rings A, B, C and D independently expresses benzene ring or a heterocyclic aromatic ring. R1 expresses alkyl group, R2 expresses alkylene group and X expresses an anilino group having one or more sulfonic acid group. (m) is more than 0.0 and <3.9 in average, (n) is ≥0.1 and <4.0 in average and the sum of (m) and (n) is ≥0.1 and <4.0 in average), the second coloring material is a compound having triphenyl methane skeleton, and (content of first coloring material):(content of second coloring material) is 5.0-40.0 in the ratio by mass, based on total mass of the ink.
IKEGAMI MASAYUKI
AIDA KEIGO
Chongqing Sugano