Patent ID: 7854799

Claim:
A non-aqueous inkjet ink set for single pass inkjet printing including a non aqueous inkjet ink comprising: a diketopyrrolo-pyrrole pigment; a dispersion synergist; a polymeric dispersant; and at least one polyalkyleneglycol dialkylether having a molecular weight of at least 250; wherein the polyalkyleneglycol dialkylether is represented by Formula (I): R 1 and R 2 are each independently selected from an alkyl group having 1 to 4 carbon atoms; Y represents an ethylene group or a propylene group; n is an integer selected from 5 to 20; the diketopyrrolo-pyrrole pigment has an average particle size diameter of less than 200 nm as measured by dynamic light scattering at a wavelength of 635 nm; and no binder is included in the non aqueous inkjet ink.