A composition comprising two or more benzensulfonamido anthraquinone dyes, selected from those of the formula: ##STR1## wherein R is methyl, ethyl, hydroxyethyl, .beta.-methoxyethyl or .beta.-ethoxyethyl, R.sub.1 is hydrogen or methyl and R.sub.2 is hydrogen, methyl or methoxy, provided that in at least one of the selected dyes, R.sub.1 and R.sub.2 are both hydrogen. The mixture of dyes gives improved dye strength and brightness of shade and is useful for dyeing linear polyester material, particularly textile material, in shades of red, with excellent leveling and fastness properties.
该组合物包括两种或更多苯磺酰胺
蒽醌染料,所选
染料的公式为:##STR1## 其中R为甲基、乙基、羟乙基、β-甲氧乙基或β-乙氧乙基,R1为氢或甲基,R2为氢、甲基或甲氧基,但在所选
染料中,至少有一种
染料中,R1和R2均为氢。这种
染料混合物具有更好的染色强度和色彩亮度,并且适用于染色线性聚酯材料,特别是纺织材料,呈红色,具有优异的匀染性和耐久性。