Colorimetric study on ink-jet printing of polyester with various concentration of disperse dye

Ink-jet printing is one of the interesting science in imaging technologies and have many advantages, such as no screens needed, environmetal friendly, easy change of design, in addition to no restriction on repeats. In this study, polyester fabric was digitally printed by a blue disperse dye. Printing inks were prepared at concentrations of 1%, 2% and 4%. The spectrophotometric and colorimetric properties of printed samples were studied. Also, pictures from edge of printed samples were prepared. The obtained results showed the edge of printed samples is obvious. The unit (K/S) of printed samples was increased with increasing of dye concentration. The colorimetric properties indicated that the sample printed with higher concentration of dye is bluer that the sample printed with lower concentration of dye.