| abstract |
A reactive navy to black dye composition comprises component A and component B, wherein component A is selected from one or more compounds of formula (I), component B is selected from one or more compounds of formula (II); D 1 and D 2 are each independently a group represented by the following formula (a) or (b) or (c); R 1 -R′ 2 are each independently selected from the group consisting of H, linear or branched C 1 ˜C 4 alkyl, C 1 ˜C 4 alkoxy and sulfo; m, n=0-3, and every R 3 is each independently selected from the group consisting of amino, sulfo, ureido, C 1 ˜C 4 alkanoylamino, C 1 ˜C 4 alkoxy and C 1 ˜C 4 alkyl, every R 6 is each independently selected from the group consisting of amino, hydroxyl and sulfo; X 1 -X 3 are each independently selected from the group consisting of H, C 1 ˜C 4 alkyl, C 1 ˜C 4 alkoxy, —SO 2 Y 1 , —NHCO(CH 2 ) p SO 2 Y 2 and —CONH(CH 2 ) q SO 2 Y 3 , and at least one of D 1 and D 2 contains a fiber-reactive group, p, q=1-3, and Y 1 ˜Y 5 are each independently selected from the group consisting of —CH═CH 2 , —C 2 H 4 OSO 3 H and —CH 2 CH 2 Cl. A reactive navy to black dye product comprising the dye composition, has the properties of good washing fastness, high degree of fixation and dye-uptake, good build-up, clear remanent dyeing liquor, and the like. |