Combined Chemical/Mechanical Laser Ink Removal Strategies, 1993 Pulping Conference Proceedings
Due to the proliferation of
photocopiers and laser printers,
Office Wastepaper (OWP) contains an increasing amount of electrostatic
or "laser" ink. Laser ink is not
easily removed using conventional
deinking equipment and chemistries.
This paper discusses combined
chemical/mechanical systems capable
of removing electrostatic inks.
Data from both pilot and mill
operations demonstrates the
feasibility of producing high
quality pulp from Mixed Office Waste (MOW) containing 50-75% laser
content. This type of deinking
efficiency is only possible when
attention is given to both
mechanical and chemical
technologies. Advances in both
equipment and chemistries are
discussed.
Combined Chemical/Mechanical Laser Ink Removal Strategies, 1993 Pulping Conference Proceedings
