The chemistry of the inks also determines the strength of the final product. Soleimani-Gorgani and N Shakib (2014) printed cellulosic fabrics with reactive dyes containing different reactive groups and varying numbers of anionic molecules. Color strength and fixation were determined at different pH values. According to the results, by increasing the Ph of the ink, the reaction of cellulose with the dye molecule increases due to the increase in the concentration of cellulosate ion. The optimum pH for best fixation is 8. The fixation percentage of reactive dyes containing different reactive groups and number of sulfonic acid groups. By increasing the number of suphonic acid groups in the reactive ink, the percentage of absorbed dye decreases due to increased electrostatic repulsion between the fiber and the dye molecule and increased solubility of the dyes. On the other hand, increasing the number of reactive groups results in an increase in the percentage of reactive dye absorbed. Dry varnish fastness properties were very good for all inks, but wet varnish fastness properties were moderate. The wash fastness properties were very good and the light fastness was moderate. This means that by changing the inks, different quality results can be achieved. It is therefore essential to choose the correct ink chemistry to achieve the desired results and performance..