Fabric color rejuvenation composition

Abstract

Rejuvenation compositions including a reactive dye are disclosed for the one-shot rejuvenation of the color for dark-colored textile fabrics and garments formed therefrom. The rejuvenation compositions return faded black or dark colored garments to a like-new look. Methods of rejuvenating the faded color of garments by using the dye compositions are also disclosed.

1 . A method of rejuvenating a color of a textile comprising:
 treating the textile with a textile rejuvenation composition comprising:
 from about 5.0% to about 30.0% by weight of a reactive dye composition; 
 from about 35.0% to about 90.0% by weight of a water soluble salt; 
 from about 5.0% to about 40.0% by weight of an alkali base; 
 from 0% to about 10% by weight of a surfactant; and 
 from 0% to about 1.0% by weight of an enzyme, 
 wherein the composition is substantially free of phosphates and wherein the water soluble salt is a sodium salt selected from the group consisting of sodium chloride, sodium acetate, a sodium carboxylate, sodium formate and combinations of any thereof. 
   
     
     
         2 . The method of  claim 1 , wherein the reactive dye composition comprises a reactive black dye. 
     
     
         3 . The method of  claim 2 , wherein the reactive dye composition further comprises at least one dye selected from the group consisting of a reactive yellow dye, a reactive orange dye, a reactive red dye, a reactive green dye, and combinations thereof. 
     
     
         4 . The method of  claim 2 , wherein the reactive dye composition has an extinction coefficient ranging from 40,000 to 45,000 at λ max  of 595 nm for Reactive Black 5 and an absorbance percentage of at least 77% with respect to the absorbance value at 595 nm for species absorbing in the range of 465-480 nm and an absorbance percentage of at least 70% with respect to the absorbance value at 595 nm for species absorbing in the range of 420-435 nm. 
     
     
         5 . The method of  claim 1 , wherein the treated textile has an L* value of less than about 15 units. 
     
     
         6 . The method of  claim 1 , wherein treating the textile with the textile rejuvenation composition comprises treating the textile with an aqueous solution of the textile rejuvenation composition having a concentration of from about 2.0 g/L of wash solution to about 60.0 g/L of wash solution. 
     
     
         7 . A one-use method for rejuvenating the color of textile garments in a front-loader type washing machine comprising:
 adding a dosage unit of a textile rejuvenation composition comprising:
 from about 5.0% to about 30.0% by weight of a reactive dye composition; 
 from about 35.0% to about 90.0% by weight of a water soluble salt; 
 from about 5.0% to about 40.0% by weight of an alkali base; 
 from 0% to about 10% by weight of a surfactant; and 
 from 0% to about 1.0% by weight of an enzyme; 
 wherein the composition is substantially free of phosphates and wherein the water soluble salt is a sodium salt selected from the group consisting of sodium chloride, sodium acetate, a sodium carboxylate, sodium formate and combinations of any thereof; 
   
       to a wash compartment;
 adding water having a temperature ranging from about 30° C. to about 50° C. to the wash compartment to produce a rejuvenation mixture; 
 agitating the rejuvenation mixture for a time sufficient to disperse the textile rejuvenation composition in the rejuvenation mixture; 
 adding from about 500 to about 1000 g of garments to the wash compartment; 
 agitating the garments in the rejuvenation mixture for sufficient time to fully contact the rejuvenation mixture with the garments; 
 soaking the garments in the rejuvenation mixture for sufficient time to allow the reactive dye to react with the garments; 
 draining the rejuvenation mixture from the wash compartment; 
 rinsing the garments with water; and 
 treating the garments to a wash/rinse cycle using a cold setting without additional cleaning/treating products. 
 
     
     
         8 . The method of  claim 7 , wherein the reactive dye composition comprises a reactive black dye. 
     
     
         9 . The method of  claim 8 , wherein the reactive dye composition further comprises at least one dye selected from the group consisting of a reactive yellow dye, a reactive orange dye, a reactive red dye, a reactive green dye, and combinations thereof. 
     
     
         10 . The method of  claim 8 , wherein the reactive dye composition has an extinction coefficient ranging from 40,000 to 45,000 at λ max  of 595 nm for Reactive Black 5 and an absorbance percentage of at least 77% with respect to the absorbance value at 595 nm for species absorbing in the range of 465-480 nm and an absorbance percentage of at least 70% with respect to the absorbance value at 595 nm for species absorbing in the range of 420-435 nm. 
     
     
         11 . A one-use method for rejuvenating the color of textile garments in a top loader-type washing machine comprising:
 adding a dosage unit of a textile rejuvenation composition comprising:
 from about 5.0% to about 30.0% by weight of a reactive dye composition; 
 from about 35.0% to about 90.0% by weight of a water soluble salt; 
 from about 5.0% to about 40.0% by weight of an alkali base; 
 from 0% to about 10% by weight of a surfactant; and 
 from 0% to about 1.0% by weight of an enzyme; 
 wherein the composition is substantially free of phosphates and wherein the water soluble salt is a sodium salt selected from the group consisting of sodium chloride, sodium acetate, a sodium carboxylate, sodium formate and combinations of any thereof; 
   
       to a wash compartment;
 adding water having a temperature ranging from 30° C. to 50° C. to the wash compartment to produce a rejuvenation mixture; 
 agitating the rejuvenation mixture for a time sufficient to disperse the textile rejuvenation composition in the rejuvenation mixture; 
 adding from about 500 g to about 1000 g or garments to the wash compartment; 
 agitating the garments in the rejuvenation mixture for sufficient time to fully contact the rejuvenation mixture with the garments; 
 soaking the garments in the rejuvenation mixture for sufficient time to allow the reactive dye to react with the garments; 
 draining the rejuvenation mixture from the wash compartment; 
 rinsing the garments with water; and 
 treating the garments to a wash/rinse cycle using a cold setting without additional cleaning/treating products. 
 
     
     
         12 . The method of  claim 11 , wherein the reactive dye composition comprises a reactive black dye. 
     
     
         13 . The method of  claim 12 , wherein the reactive dye composition further comprises at least one dye selected from the group consisting of a reactive yellow dye, a reactive orange dye, a reactive red dye, a reactive green dye, and combinations thereof. 
     
     
         14 . The method of  claim 12 , wherein the reactive dye composition has an extinction coefficient ranging from 40,000 to 45,000 at λ max  of 595 nm for Reactive Black 5 and an absorbance percentage of at least 77% with respect to the absorbance value at 595 nm for species absorbing in the range of 465-480 nm and an absorbance percentage of at least 70% with respect to the absorbance value at 595 nm for species absorbing in the range of 420-435 nm. 
     
     
         15 . A one-use method for rejuvenating the color of textile garments in a commercial washing facility comprising:
 adding a dosage unit of a textile rejuvenation composition comprising:
 from about 5.0% to about 30.0% by weight of a reactive dye composition; 
 from about 35.0% to about 90.0% by weight of a water soluble salt; 
 from about 5.0% to about 40.0% by weight of an alkali base; 
 from 0% to about 10% by weight of a surfactant; and 
 from 0% to about 1.0% by weight of an enzyme; 
 wherein the composition is substantially free of phosphates and wherein the water soluble salt is a sodium salt selected from the group consisting of sodium chloride, sodium acetate, a sodium carboxylate, sodium formate and combinations of any thereof; 
   
       to a wash compartment;
 adding water having a temperature ranging from 30° C. to 70° C. to the wash compartment to produce a rejuvenation mixture; 
 agitating the rejuvenation mixture for a time sufficient to disperse the textile rejuvenation composition in the rejuvenation mixture; 
 adding from about 500 g to about 1000 g or garments to the wash compartment; 
 agitating the garments in the rejuvenation mixture for sufficient time to fully contact the rejuvenation mixture with the garments; 
 soaking the garments in the rejuvenation mixture for sufficient time to allow the reactive dye to react with the garments; 
 draining the rejuvenation mixture from the wash compartment; 
 rinsing the garments with water; and 
 treating the garments to a wash/rinse cycle using a cold setting without additional cleaning/treating products. 
 
     
     
         16 . The method of  claim 15 , wherein the reactive dye composition comprises a reactive black dye. 
     
     
         17 . The method of  claim 16 , wherein the reactive dye composition further comprises at least one dye selected from the group consisting of a reactive yellow dye, a reactive orange dye, a reactive red dye, a reactive green dye, and combinations thereof. 
     
     
         18 . The method of  claim 16 , wherein the reactive dye composition has an extinction coefficient ranging from 40,000 to 45,000 at λ max  of 595 nm for Reactive Black 5 and an absorbance percentage of at least 77% with respect to the absorbance value at 595 nm for species absorbing in the range of 465-480 nm and an absorbance percentage of at least 70% with respect to the absorbance value at 595 nm for species absorbing in the range of 420-435 nm.