DYE COMPOSITION AND POLYLACTIC ACID MOLDING DYED THEREWITH

摘要

A black or navy dye composition excelling in dyeing capacity and capable of dyeing polylactic acid to navy or black with reddishness reduced. This composition comprises main black disperse dye (a1) or main navy disperse dye (a2) combined in given proportion with a given blue disperse dye. This main black disperse dye (a1) or main navy disperse dye (a2) is a disperse dye exhibiting dyeing capacity to polyesters and polylactic acid. This blue disperse dye is a disperse dye that in the dyeing of polylactic acid molding therewith, has a maximum absorption within the range of 640 to 700 nm in a 550 to 700 nm wavelength region of absorbance curve exhibiting the absorbance of dyed surface of dyed molding.