| 摘要 |
<p>According to one embodiment, an inkjet ink includes a pigment, an aqueous liquid, an oil liquid, and a dihydric alcohol soluble in the aqueous liquid and the oil liquid. The aqueous liquid accounts for 10 to 70% by weight of the inkjet ink, and the oil liquid accounts for 70 to 10% by weight of the inkjet ink. At least a part of the oil liquid is an aromatic alcohol represented by general formula AA,
where R a represents an aliphatic hydrocarbon group having 1 to 5 carbon atoms, R b represents -O- or -CH 2 O-, and k represents 0 or 1. The dihydric alcohol is selected from compounds represented by general formulae DA, EO, and PO below,
€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ R c (5OH) 2 €ƒ€ƒ€ƒ€ƒ€ƒDA
€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ OH(5CH 2 CH 2 O) n -H€ƒ€ƒ€ƒ€ƒ€ƒEO
€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ OH(5CH(CH 3 )CH 2 O) m -H€ƒ€ƒ€ƒ€ƒ€ƒPO
where R C represents an alkylene group having 3 to 6 carbon atoms, n represents 1 to 10, and m represents 2 to 5.</p> |
