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HP Indigo: Deinkability and recyclable packaging advancements

Updates to the company’s Indigo prints include: deinkability in typical graphic arts paper deinking mill configuration; fully recyclable packaging for ink cartridges; expansion of take-back programme for recycling consumables and reduction of their carbon footprint.

In June 2013, Voith Paper, a leading supplier of deinking equipment, and the Paper Technology Department of PMV Darmstadt/D conducted two pilot-scale trials with 5% and 10% Indigo feed. The research found that even with 10% feed, the pulp produced in the trials was suitable for standard and higher quality graphic arts recycled paper grades. An important feature of the trial was that disperger energy typical of industry mills was used.

JÜRGEN DOCKAL, Product Development Engineer, Voith Paper said »proven equipment and standard deinking chemistry can be used, and parameters such as brightness development, ash content and yield are unaffected by the presence of up to 10% Liquid ElectroPhotographic prints (LEP).«

These results complement two previous full-scale mill deinking trials, which were conducted in collaboration with Arjowiggins Graphic at its 3-loop Greenfield deinking mill in Chateau-Thierry/F. In the mill-scale trials, 5% LEP were added to the standard mill furnish. In both cases, high-quality deinked pulp was produced without affecting mill process efficiencies or operating parameters.

 

Andreas Keller

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