The present invention provides a method of manufacturing a reactive composition: (a) dissolving 2-[(4-aminophenyl)sulfonyl]ethanesulfonic acid in water to form a solution; (b) introducing excess nitrite or excess nitrous acid and the solution into an acid solution to form a diazonium salt; (c) adding 4-amino-5-hydroxy-2,7-naphthalenedisulfonic acid to react with the diazonium salt; (d) adding 7-acetamido-4-hydroxy-2-naphthalenesulfonic acid to react with the diazonium salt; (e) adding a first alkaline substance to adjust a pH value; (f) adding a second alkaline substance to adjust the pH value; (g) adding a third alkaline substance to control the pH value; (h) adding an acidic substance to adjust the pH value; and (i) adding an additive agent to obtain the reactive composition, wherein the additive agent is acetic acid, sodium hydroxide, acetate, sulfonic acid buffering agent, or a combination thereof.

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.sup.1 and D.sup.2 are each independently a group represented by the following formula (a) or (b) or (c); R.sup.1-R.sup.12 are each independently selected from the group consisting of H, linear or branched C.sub.1C.sub.4 alkyl, C.sub.1C.sub.4 alkoxy and sulfo; m, n=0-3, and every R.sup.3 is each independently selected from the group consisting of amino, sulfo, ureido, C.sub.1C.sub.4 alkanoylamino, C.sub.1C.sub.4 alkoxy and C.sub.1C.sub.4 alkyl, every R.sup.6 is each independently selected from the group consisting of amino, hydroxyl and sulfo; X.sup.1-X.sup.3 are each independently selected from the group consisting of H, C.sub.1C.sub.4 alkyl, C.sub.1C.sub.4 alkoxy, SO.sub.2Y.sup.1, NHCO(CH.sub.2).sub.pSO.sub.2Y.sup.2 and CONH(CH.sub.2).sub.qSO.sub.2Y.sup.3, and at least one of D.sup.1 and D.sup.2 contains a fiber-reactive group, p, q=1-3, and Y.sup.1Y.sup.5 are each independently selected from the group consisting of CHCH.sub.2, C.sub.2H.sub.4OSO.sub.3H and CH.sub.2CH.sub.2Cl. 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. ##STR00001##

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.sup.1 and D.sup.2 are each independently a group represented by the following formula (a) or (b) or (c); R.sup.1-R.sup.2 are each independently selected from the group consisting of H, linear or branched C.sub.1C.sub.4 alkyl, C.sub.1C.sub.4 alkoxy and sulfo; m, n=0-3, and every R.sup.3 is each independently selected from the group consisting of amino, sulfo, ureido, C.sub.1C.sub.4 alkanoylamino, C.sub.1C.sub.4 alkoxy and C.sub.1C.sub.4 alkyl, every R.sup.6 is each independently selected from the group consisting of amino, hydroxyl and sulfo; X.sup.1-X.sup.3 are each independently selected from the group consisting of H, C.sub.1C.sub.4 alkyl, C.sub.1C.sub.4 alkoxy, SO.sub.2Y.sup.1, NHCO(CH.sub.2).sub.pSO.sub.2Y.sup.2 and CONH(CH.sub.2).sub.qSO.sub.2Y.sup.3, and at least one of D.sup.1 and D.sup.2 contains a fiber-reactive group, p, q=1-3, and Y.sup.1Y.sup.5 are each independently selected from the group consisting of CHCH.sub.2, C.sub.2H.sub.4OSO.sub.3H and CH.sub.2CH.sub.2Cl. 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.

##STR00001##

A one-pot synthesis for preparing an aqueous reactive black mixture includes a) dissolving 2-[(4-aminophenyl)sulfonyl]ethanesulfonic acid (vinyl sulphone parabase ester) in water; b) diazotizing the dissolved vinyl sulphone parabase ester using excess nitrous acid or using excess nitrite and an acid, resulting in a diazonium salt and remaining nitrous acid; c) quenching the remaining nitrous acid with sulfamic acid; d) coupling the diazonium salt of step c) with 4-amino-5-hydroxy-2,7-naphthalenedisulfonic acid (H-acid) until the reaction is complete, resulting in Reactive Black 5 (RB 5) and remaining diazonium salt, e) coupling the remaining diazonium salt with 7-acetamido-4-hydroxy-2-naphthalenesulfonic acid (acetyl-J-acid) until the reaction is complete resulting in Reactive Orange 78 (RO 78); and f) obtaining the aqueous reactive black mixture.

A one-pot synthesis for preparing an aqueous reactive black mixture includes a) dissolving 2-[(4-aminophenyl)sulfonyl]ethanesulfonic acid (vinyl sulphone parabase ester) in water; b) diazotizing the dissolved vinyl sulphone parabase ester using excess nitrous acid or using excess nitrite and an acid, resulting in a diazonium salt and remaining nitrous acid; c) quenching the remaining nitrous acid with sulfamic acid; d) coupling the diazonium salt of step c) with 4-amino-5-hydroxy-2,7-naphthalenedisulfonic acid (H-acid) until the reaction is complete, resulting in Reactive Black 5 (RB 5) and remaining diazonium salt, e) coupling the remaining diazonium salt with 7-acetamido-4-hydroxy-2-naphthalenesulfonic acid (acetyl-J-acid) until the reaction is complete resulting in Reactive Orange 78 (RO 78); and f) obtaining the aqueous reactive black mixture.

The present invention provides a method of manufacturing a reactive composition: (a) dissolving 2-[(4-aminophenyl)sulfonyl]ethanesulfonic acid in water to form a solution; (b) introducing excess nitrite or excess nitrous acid and the solution into an acid solution to form a diazonium salt; (c) adding 4-amino-5-hydroxy-2,7-naphthalenedisulfonic acid to react with the diazonium salt; (d) adding 7-acetamido-4-hydroxy-2-naphthalenesulfonic acid to react with the diazonium salt; (e) adding a first alkaline substance to adjust a pH value; (f) adding a second alkaline substance to adjust the pH value; (g) adding a third alkaline substance to control the pH value; (h) adding an acidic substance to adjust the pH value; and (i) adding an additive agent to obtain the reactive composition, wherein the additive agent is acetic acid, sodium hydroxide, acetate, sulfonic acid buffering agent, or a combination thereof.