Toner-print removal from paper by long and ultrashort pulsed lasers
Leal-Ayala DR, Allwood JM, Schmidt M, Alexeev I (2012)
Publication Type: Journal article
Publication year: 2012
Journal
Proceedings of the Royal Society A-Mathematical Physical and Engineering Sciences
Royal Society, The
Book Volume: 468
Pages Range: 2272-2293
Journal Issue: 2144
Abstract
Toner-print removal from paper would allow paper to be re-used instead of being recycled, incinerated or disposed of in landfill. This could significantly reduce the environmental impact of paper production and use. Previous work on the subject has explored the applicability of ultraviolet, visible and infrared (IR) lasers under nanosecond pulses for toner removal. This article expands on this work by testing a wider range of ultrafast and long-pulsed lasers. Results from 10 distinct laser set-ups are used to propose an operating window for the toner-removal process. Colour analysis under the L*a *b* colour space, scanning electron microscope examination and attenuated total reflectance-Fourier transform IR spectroscopy measurements of the outcome show that, with the right laser, it is possible to remove toner from paper to enable its re-use. Theoretical models to predict the laser ablation of toner are discussed, and, while imperfect, provide sufficient evidence to support a physical explanation of toner ablation. © 2012 The Royal Society.
Authors with CRIS profile
Michael Schmidt
Lehrstuhl für Photonische Technologien
Ilya Alexeev
Lehrstuhl für Photonische Technologien
Additional Organisation(s)
Involved external institutions
United Kingdom (GB)How to cite
APA:
Leal-Ayala, D.R., Allwood, J.M., Schmidt, M., & Alexeev, I. (2012). Toner-print removal from paper by long and ultrashort pulsed lasers. Proceedings of the Royal Society A-Mathematical Physical and Engineering Sciences, 468(2144), 2272-2293. https://dx.doi.org/10.1098/rspa.2011.0601
MLA:
Leal-Ayala, David Ricardo, et al. "Toner-print removal from paper by long and ultrashort pulsed lasers." Proceedings of the Royal Society A-Mathematical Physical and Engineering Sciences 468.2144 (2012): 2272-2293.
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