Using solvents to remove a toner print so that office paper might be reused

摘要: The environmental impact of office paper recycling might be avoided if toner print could removed from in a way that left the immediately reusable. This article reports on experiments investigate use solvents to allow black white cut-size paper. Hansen solubility parameters are estimated for detaching pigment and compared These imply can found would without harming underlying However, immersion alone detaches just 10 per cent pigment. Rubbing combined with increases removal 50 cent. Adding ultrasonic agitation 80 Mixing different increasing volume solvent further improve point where cleaned is useful, although still distinguishable new. For instance, soaking printed mixture 60 dimethylsulphoxide 40 chloroform 4 min, while applying agitation, results readily reprinted. need validated other types. Further work needed influence temperature, adding surfactants consider economic, safety implications.