Aqueous Ink Jet Composition for Textile Printing

Abstract

Aqueous ink for textile printing comprising a disperse dye, a dispersant and lignin. A manufacturing method of this ink is provided. An inkjet recording method on textile fabric using the aqueous ink comprising a disperse dye, a dispersant and lignin is also provided.

1 - 13 . (canceled) 
     
     
         14 . An aqueous ink for textile printing comprising a disperse dye, a dispersant, and lignin. 
     
     
         15 . The aqueous ink of  claim 14 , wherein the dispersant is a non-ionic polymer. 
     
     
         16 . The aqueous ink of  claim 14 , wherein the dispersant is a copolymer of an acrylate and an alkylene oxide. 
     
     
         17 . The aqueous ink of  claim 14 , wherein the disperse dye is a mixture of DR 60, DY54, and DB360. 
     
     
         18 . The aqueous ink of  claim 16 , wherein the disperse dye is a mixture of DR 60, DY54, and DB360. 
     
     
         19 . The aqueous ink of  claim 14 , wherein the amount of lignin is from 0.1 to 5 wt. % with respect to the total weight of the ink. 
     
     
         20 . The aqueous ink of  claim 18 , wherein the amount of lignin is from 0.1 to 5 wt. % with respect to the total weight of the ink. 
     
     
         21 . The aqueous ink of  claim 14 , further containing a water-soluble organic solvent. 
     
     
         22 . The aqueous ink of  claim 18 , further containing a water-soluble organic solvent. 
     
     
         23 . The aqueous ink of  claim 14 , further containing an acetylene glycol (alcohol)-based surfactant. 
     
     
         24 . The aqueous ink of  claim 18 , further containing an acetylene glycol (alcohol)-based surfactant. 
     
     
         25 . An aqueous inkjet ink set wherein at least one aqueous inkjet ink comprises a disperse dye, a dispersant, and lignin. 
     
     
         26 . The aqueous inkjet ink of  claim 25 , wherein the at least one aqueous inkjet ink is a black ink or a cyan ink. 
     
     
         27 . An inkjet recording method comprising the following steps:
 a) jetting of an aqueous ink according to  claim 14  onto a fabric comprising hydrophobic fibres so as to obtain an image comprising disperse dyes: and   b) applying heat to the fabric so as to fix the disperse dye onto the hydrophobic fibres.   
     
     
         28 . An inkjet recording method comprising the following steps:
 a) jetting of an aqueous ink according to  claim 14  onto a transfer medium so as to obtain an image comprising disperse dye:   b) bringing the transfer medium into contact with a fabric comprising hydrophobic fibres; and   c) applying heat to the transfer medium and/or the fabric so as to fix the disperse dyestuff onto the hydrophobic fibres of the fabric.   
     
     
         29 . A method of preparing an aqueous ink according to  claim 14 , comprising the following steps:
 a) preparing a disperse dye dispersion by applying high shear forces or milling onto a mixture comprising water, a disperse dye, a dispersant and lignin: and   b) adding water, a water-soluble organic solvent, and a surfactant to the disperse dye dispersion of step a).   
     
     
         30 . A polymer containing fabric comprising a disperse dye, a dispersant, and lignin.