| 摘要 |
An ink composition is provided to ensure excellent storage stability and an improved antifoaming property, prevent clogging of a nozzle upon use in a wet imaging forming apparatus, and exhibit less bleeding on printing paper when an image is formed. An ink composition includes a colorant, a solvent, and many additives. The many additives are the same kind of additives and comprise one or more hydrophilic groups and one or more hydrophobic groups. At least one of hydrophobic groups and hydrophilic groups of the many additives has the same structure. The additive is any one kind of additive selected from antifoaming agents, emulsifiers, and nozzle clogging inhibitors.
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