| 摘要 |
<p>PURPOSE: To obtain an ink jet printing ink containing an acid dye in which hue in color space of CIE 1976L*, a*, b* after each fixing yellow ink, magenta ink and cyan ink on fabrics is within a specific range and having good coloring property and image quality to polyamide-based fabrics. CONSTITUTION: In ink for ink jet printing comprising an acid dye, water and as necessary, an organic solvent, the acid dye, etc., are compounded so that hue in color space of CIE 1976-L*-a*-b* after each fixing yellow ink, magenta ink and cyan ink on fabrics is within the following ranges to provide yellow ink containing an acid dye expressed by formula I [(n) is 1-2], etc., in a form of a free acid and having 60 to 100L*, -40 to -10(a*) and 50 to 90 (b*), magenta ink containing an acid dye of formula II, etc., in a free form and having 50 to 90 L*, 60 to 90 (a*), -10 to 30 (b*) and cyan ink containing an acid dye expressed by formula III, etc., in a form of a free acid and having 40-80 L*,-50 to-20 (a*) and -40 to 0 (b*).</p> |
