Patent ID: 8557032

Claim:
An oil ink set for inkjet recording comprising: a combination at least including an oil cyan ink composition, an oil green ink composition and an oil yellow ink composition for formation of a color reproduction area, characterized in that as a wavelength at which reflectivity becomes 5% in reflectivity spectra on a recording medium in a wavelength range of 400 nm to 700 nm, said oil yellow ink composition has one wavelength C, said oil cyan ink composition has one wavelength D or two wavelengths provided that the shorter is taken as D, and said oil green ink composition has two wavelengths E and F where E is the shorter wavelength and F is the longer wavelength, the shorter wavelength E of said oil green ink composition is in a range from 400 nm to 500 nm with a maximum reflectivity of 70% or higher in a range from 500 nm to 600 nm, a reflectivity of said yellow ink composition is continuously lower than 5% in a wavelength range below the wavelength C, a reflectivity of said oil cyan ink composition is continuously lower than 5% in a wavelength range exceeding the wavelength D, the wavelengths C, D, E and F satisfy a relation: E<C<D<F, said oil green ink composition is a green ink selected from Pigment Green 58, and each ink composition contains as an organic solvent at least 30% by mass of a polyoxyethylene glycol dialkyl ether represented by the following general formula (1) and/or a polyoxyethylene (alkylene) glycol alkyl ether acetate represented by the following general formula (2): X 1 —(OC 2 H 4 ) n —OX 2 General Formula (1) where X 1 and X 2 are each an alkyl group having 1 to 3 carbon atoms and may be identical or different, and n stands for an integer of 2, 3, and 4; and where X 5 is an alkyl group, X 6 is a hydrogen atom or an alkyl group, and n stands for an integer of 1, 2, 3, and 4.