Ink set for ink jet printing

Abstract

An ink jet ink set for fabric printing contains a magenta ink containing C.I. Pigment Red 213 and a yellow ink containing a yellow pigment having L*a*b* color system chromas a* and b* such that −18≦a*≦0, and 50≦b*≦80 when printed on fabrics by an ink jet method, whereby a vivid red can be obtained in the printed portions of fabrics upon printing by an ink jet method.

1 . An ink jet ink set for fabric printing comprising a magenta ink containing C.I. Pigment Red 213 and a yellow ink containing a yellow pigment having L*a*b* color system chromas a* and b* such that −18≦a*≦0, and 50≦b*≦80 when printed on fabrics by an ink jet method.  
     
     
         2 . An ink jet ink set according to  claim 1  wherein the yellow pigment is selected from among C.I. Pigment Yellow 23, 74, 147, 150, 151, 154, 155, 175, 180 and 185.  
     
     
         3 . An ink jet ink set according to  claim 1  wherein each ink contains an aqueous emulsion.  
     
     
         4 . An ink jet printing method comprising the steps of forming red on a fabric by attaching droplets of the inks of the ink set according to  claim 3  on the fabric; and fixing the coloring material of the inks onto the fabric by thermal treatment of the fabric.  
     
     
         5 . An ink jet printing method according to  claim 4 , wherein the amount of ink droplets attached onto the fabric ranges from 7 to 30 mg per square inch.  
     
     
         6 . An ink jet printing method according to  claim 5 , wherein the fabric is a sheeting fabric made of cotton, polyester, or blends thereof.  
     
     
         7 . An ink jet ink set according to  claim 2  wherein each ink contains an aqueous emulsion.