No abstract

In this study, the azo red dyes derived from p-n-alkyl aniline by the introduction of different alkyl groups having high solubility in dodecane were synthesized. Results indicated that the elementary properties of red oil inks were 1) non-polarity; 2) low viscosity (<3.0 cps); 3) specified surface tension (<30 mN/m); 4) intensity of visible absorption covering 480-540 nm; 5) hue close to standard red (CIE(x, y) = 0.67, 0.33). We can conclude that these azo red dyes are applicable for electrowetting displays.