INK COMPOSITION, INK COMPOSITION FOR INKJET RECORDING, INK SET, INK CARTRIDGE, INKJET RECORDING METHOD, AND RECORDED PRODUCT
申请人:Tanaka Shigeaki
公开号:US20110091696A1
公开(公告)日:2011-04-21
An ink composition is provided which does not undergo decomposition or fading of colorants even when stored under high-temperature environment. 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 7.0% 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;
wherein Ar
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.