Abstract:

Digital printing has become to the prominent in recent years due to the negative effects of traditional printing, such as long production processes, usage of high energy and water, large storage space, and environmental pollution. However, there are also technical limitations that need to be developed in digital printing processes. Changes such as the type of fabric, the formulation of the ink used, pre-treatments and post-treatments can cause color differences in the final print and other problems. Digital printing inks are one of the most important components of digital printing, especially since they directly affect the printing quality and jetting properties. There are some features that inks must have, and these features should be in accordance with the working principle of the printhead in order to prevent clogging. The basic properties that should be found in ink jet printing inks are: purity, particle size, viscosity, surface tension, stability, conductivity, pH, color fastness. In this study, the general properties of printing inks, their formulations, various pre-treatments, and technical limitations according to the colorants used are explained.

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