BLACK DYE COMPOSITION FOR POLYESTER FIBER

摘要

PURPOSE: A dye composition is provided that represents no yellowing appearance when a polyester fiber or the blended fiber of polyester/spandex is dyed at a low temperature. CONSTITUTION: The dye composition comprises 5 to 30 wt% of azo dye (Formula I); 5 to 25 wt% of azo dye (Formula II); 25 to 50 wt% of azo dye (Formula III); 2 to 10 wt% of any one of the group consisting of naphthalene sulfuric acid formaldehyde condensate, arylsulfonate formaldehyde condensate special polycarboxylate type dispersant, and sulfide phenol formaldehyde condensate; 25 to 50 wt% of lignin sulfonate dispersant; and 0 to 3 wt% of any one of the group consisting of alkyl naphthalene sulfonate, dialkyl sulfosuccinate, alkyl diphenyl ether disulfonate, alkyl phosphate and polyoxyethylene alkyl ether sulfate.