To provide a disperse dye mixture which is suitable for dyeing polylactic acid fibers and can dye to a deep color, such as black or dark blue, with good color rendering properties and the like.
The disperse dye mixture is prepared by mixing a dye compound represented by structural formula [1] and/or a structural formula [2], a dye compound represented by structural formula [3] and/or a structural formula [4], and the like. In formula [1], X1 and X2 are each a chlorine or bromine atom; R1 is a methyl or ethyl group; and R2 is a hydrogen atom or a methyl group. In formula [2], X3 and X4 are each a chlorine or bromine atom; R3 and R4 are each a methyl or ethyl group; and R5 is a hydrogen atom or a methyl group. In formula [3], R6 is a methyl or ethyl group. In formula [4], R7 is a hydrogen atom or a methoxy group; and R8 and R9 are each an acetyloxy or methoxycarbonyl group.
HOSODA DAISUKE
HIBARA TOSHIO