| abstract |
An ink composition is provided which does not undergo decomposition or fading of colorants even when stored under high-temperature environment. n An ink composition which contains a compound represented by the following general formula (1) and a humectant, wherein the content of the compound represented by the general formula (1) is from 0.1% by mass to less than 70% by mass, the content of the humectant having 3 or more hydroxyl groups is 8.0% by mass or less, and the molar ratio of the humectant having 3 or more hydroxyl groups/the compound represented by the general formula (1) being less than 15.0;n nwherein nAr 1 and Ar 2 each independently represents an aromatic hydrocarbon ring group, a non-aromatic hydrocarbon ring group, an aromatic heterocyclic group, or a non-aromatic heterocyclic group, A 1 and A 2 each independently represents a hydrogen atom or a substituent, Y represents -OM or -NR 1 R 2 , M represents a hydrogen atom or a metal ion, and R 1 and R 2 each independently represents a hydrogen atom, an alkyl group, an alkenyl group, an alkynyl group, an aralkyl group, an aryl group, or a heterocyclic group. |