Reactive navy to black dye composition and dye product thereof

A reactive navy to black dye composition, comprising component A and component B, wherein component A is selected from one or more dye compounds of formula (I) or alkali metal salts of formula (I), component B is selected from one or more dye compounds of formula (II) or alkali metal salts of formula (II);

• and based on component A and component B, component A has a mass percentage of 5% to 50%, and component B has a mass percentage of 50% to 95%;
• in formula (I):
• D1 and D2 are each independently a group represented by the following formula (a) or (b) or (c);
• in the above formulae (a)˜(c):
• R1, R2, R4, R5, R7 and R8 are each independently H, linear or branched C1˜C4 alkyl, C1˜C4 alkoxy or sulfo;
• m=0-3, and every R3 is each independently selected from the group consisting of amino, sulfo, ureido, C1˜C4 alkanoylamino, C1˜C4 alkoxy and C1˜C4 alkyl;
• n=0-3, and every R6 is each independently selected from the group consisting of amino, hydroxyl and sulfo;
• X1, X2 and X3 are each independently H, linear or branched C1˜C4 alkyl, C1˜C4 alkoxy, —SO2Y1, —NHCO(CH2)pSO2Y2 or —CONH(CH2)qSO2Y3, and at least one of D1 and D2 contains a fiber-reactive group, that is, —SO2Y1, —NHCO(CH2)pSO2Y2 or —CONH(CH2)qSO2Y3, wherein p=1-3, q=1-3, and Y1˜Y3 are each independently —CH═CH2, —C2H4OSO3H or —CH2CH2Cl;
• in formula (II):
• R9, R10, R11 and R12 are each independently H, linear or branched C1˜C4 alkyl, C1˜C4 alkoxy or sulfo;
• Y4 and Y5 are each independently —CH═CH2, —C2H4OSO3H or —C2H4Cl.