ACID DYE COMPOSITION, AND DYEING METHOD USING SAME

摘要

Provided are a dye composition and a dyeing method, in each of which the color fastness to light of each of a yellow acid dye, a red acid dye and a blue acid dye is high, dyeing properties of all of the acid dyes (i.e., dyeing speeds of all of the acid dyes) are the same as one another and the dyeing performance of each of the colors is high when used in the dyeing of a polyamide fiber or a cellulose-containing polyamide fiber. A dye composition comprising specific two red acid dyes; a dye composition comprising the aforementioned red acid dye mixture and a yellow acid dye and/or a blue acid dye; and a method for dyeing a polyamide fiber or a cellulose-containing polyamide fiber using any one of the dye compositions.