Black ink composition for inkjet printing, and method for printing on hydrophobic fibers

A black ink composition for inkjet textile printing, comprising a water-soluble organic solvent, a urethane resin emulsion, a dispersant, and at least four sublimable dyes,

• wherein at least three types of the sublimable dyes are selected from the group consisting of C.I. Disperse Yellow, C.I. Disperse Red, and C.I. Disperse Blue, and include C.I. Disperse Yellow 54, C.I. Disperse Red 60, and C.I. Disperse Blue 360, and at least one of the sublimable dyes has a maximum absorption wavelength in a wavelength range of 640 nm or more and less than 680 nm in a visible spectroscopic absorption of a solution dissolved in acetone, wherein the sublimable dye having a maximum absorption wavelength in a wavelength range of 640 nm or more and less than 680 nm is a sublimable dye is selected from the group consisting of C. I. Disperse Blue 359, C. I. Disperse Blue 60, and C. I. Disperse Blue 334.