Date of Award
Master of Science
Paper Engineering, Chemical Engineering and Imaging
Dr. Raymond L. Janes
Dr. Gerard Seivers
Dr. David K. Peterson
Masters Thesis-Open Access
The objectives of this study were to optimize the variables of pH and surfactant concentration for the maximum flotation efficiency of ultraviolet radiation-cured inks and to increase the understanding of the behavior of the ink particles during flotation. Experiments were designed in two phases: water and ink system and water, fiber and ink system. At 7.t pH at room temperature the flotation efficiency increased with surfactant concentration to 8.2 <μ/>M/L and then dropped with increase in surfactant concentration. Statistical analysis showed that maximum flotation efficiency of 94.8% was obtained at pH of 7.56 at 12.18 <μ/>M/L surfactant concentration. Ink particles in the size range of 26-45 <μ/>m were found most suitable for flotation. Zeta potential had a linear relationship, negatively, with pH and surfactant concentration for both the ink and water and ink, fiber and water systems.
Seenivasan, Narayanasamy, "Flotation Deinking of Ultraviolet Radiation Cured Inks" (1989). Master's Theses. 3792.