Patent ID: 8680175

Claim:
An inkjet ink comprising: a colorant which is a pigment dispersion in which a pigment is dispersed with a nonionic surfactant, wherein the nonionic surfactant is at least one of compounds expressed by General Formula (1): where R 1 represents an alkyl group having 1 to 20 carbon atoms, an aralkyl group or an allyl group, “l” is an integer of 0 to 7, and “n” is an integer of 20 to 200, water, a water insoluble resin, a fluorine surfactant, and a polyether-modified silicone oil, wherein the polyether-modified silicone oil has a hydrophobic value of 0.40 to 1.5, and the hydrophobic value is expressed by Equation 1: Hydrophobic value= A/B Equation 1: where “A” represents an integration value of a peak area from 0 ppm to 0.3 ppm in a 1 H-NMR spectrum of the polyether-modified silicone oil using tetramethylsilane as a reference substance; and “B” represents an integration value of a peak area from 3.5 ppm to 4.0 ppm in the 1 H-NMR spectrum.