| Summary: | 碩士 === 國立臺北科技大學 === 有機高分子研究所 === 92 === Many years ago, digital printing was only possible for printing onto paper. Today, it has been used for direct printing on textiles successfully. One part of this research was to synthesize suitable black reactive dyes for ink-jet printing. Their printing properties (fastness, and colourants, etc.) and ink physical properties (viscosity, surface tension and solubility, etc.) were evaluated and compared with commercial inks. The dyes we made have better performance than commercial inks.
Since some of the conductive polymers are solution processable, ink-jet printing can meet the process requirements of fabricating Polymer Light Emitting Diodes and offer reasonable cost and higher resolution. At moment, the flatness of the polymer films printed from inkjet printing can not meet the requirements. We think some physical properties (solubility, vapor pressure, surface tension and viscosity, etc.) will affect the flatness of the film. We found the flatness of the film from m-xylene, o-dichlorobenzene, and benzaldehyde are better than those from other solvents, the film inkjeted from 1% weight red emitting polymer in m-xylene are totally uniform.
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