Date of Defense
Brian Scheller, Paper and Printing Science and Engineering
Thomas Spotts, Paper and Printing Science and Engineering
Raymond Janes, Paper and Printing Science and Engineering
This study arises from the demand for papers containing post-consumer waste (PCW) which maintain the printing and optical characteristics of papers made from 100% virgin fibers. Five pilot paper machine trials will be conducted to determine the quantitative relationship between opacity and brightness and PCW content. The trials will be based on a 100% virgin fiber furnish as a control with four experimental furnishes with increasing amounts of deinked post-consumer waste resulting in a 100% PCW furnish. Printing performance will be evaluated separately in pilot printing trials using a sheet-fed rotogravure printing press with both aqueous and solvent-based inks to determine the substrate's influence on the printing process. The nature of these relationships are important for determining the amount of PCW that can be put into papers without effecting functionality and appearance. Results will indicate where that threshold lies for papers with lightweight coatings. The opacity and brightness relationships will be evaluated using widely accepted industry standards. However, due to the difficulty in quantifying print quality, a panel of printing professionals will review the samples in conjunction with industry accepted testing.
Estkowski, Terri, "The Effect of Increasing Deinked Post-Consumer Waste Content on Optical and Rotogravure Printing Properties of Coated Paper" (1994). Honors Theses. 492.
Honors Thesis-Campus Only