Date of Award
12-1989
Degree Name
Master of Science
Department
Chemical and Paper Engineering
Department
Paper Engineering, Chemical Engineering and Imaging
First Advisor
Dr. Raymond L. Janes
Second Advisor
Dr. Gerard Seivers
Third Advisor
Dr. David K. Peterson
Fourth Advisor
Bill Forester
Access Setting
Masters Thesis-Open Access
Abstract
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.
Recommended Citation
Seenivasan, Narayanasamy, "Flotation Deinking of Ultraviolet Radiation Cured Inks" (1989). Masters Theses. 3792.
https://scholarworks.wmich.edu/masters_theses/3792