HP expands environmental sustainability initiatives with HP Indigo

31st January 2014 | By Mouseworld Now Correspondent |

HP-logoNew Delhi, India, January 31, 2014: HP has announced developments that help reduce the environmental impact of HP Indigo digital prints. New trials that conclusively demonstrate the deinkability of HP Indigo prints in typical Graphic Arts Paper deinking mill configuration, Fully recyclable packaging for ink cartridges, Expansion of its take-back program for recycling consumables, and Reduction of the HP Indigo carbon footprint.

HP Indigo prints are fully recyclable and can be placed in normal recycling collection. Deinking, or removing ink from paper fibers, is one of the key steps in the paper recycling process for manufacturing recycled Graphic Arts papers.

Over the last few years, HP collaborated with a range of industry and academic deinking experts to gather lab-scale, pilot-scale and mill-scale deinking data that verify HP Indigo prints can be deinked in a typical graphic art paper deinking mill configuration.

In June 2013, Voith Paper, a leading supplier of deinking equipment, and the Paper Technology Department of PMV Darmstadt, a leading German technical institute, conducted two pilot-scale trials with five percent and 10 percent HP Indigo feed. The research found that even with 10 percent HP Indigo feed, the pulp produced in the trials was suitable for standard and higher quality Graphic Arts recycled paper grades.

The trials were held at the Voith Paper Fiber Systems Technology Center in Ravensburg, Germany for its near-mill-scale equipment, creating a realistic simulation of a standard graphic art deinking mill, including drum pulping, two flotations and one disperger. An important feature of the trial was that disperger energy typical of industry mills was used. A detailed report from the pilot trial will be published in the near future.

“These pilot plant trials have convincingly demonstrated the deinking ability of HP Indigo prints using standard 2-loop deinking processes,” said Jürgen Dockal, product development engineer, Voith Paper Ravensburg Fiber Systems Technology Center. “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 percent Liquid ElectroPhotographic prints.”

PMV-Darmstadt has made significant progress in developing a lab scale 2-loop test that correlates with the Voith Paper pilot trial.

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, France in November 2011 and October 2012. In the mill-scale trials, five percent HP Indigo Liquid ElectroPhotographic prints (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.

“The results of the pilot-scale trials show that printed paper from HP Indigo digital presses is compatible with typical graphic arts deinking mills even at levels higher than what likely would be encountered,” said Roy Eitan, director and general Manager, HP Indigo and Inkjet Digital Press Solutions, Graphics Solutions Business, HP Asia Pacific and Japan.. “Along with results from the Arjowiggins deinking mill trials, these latest results show that HP Indigo users can continue to feel confident that HP Indigo prints can be recycled back to high-quality graphic arts papers.”

HP Indigo rolled out improved ink cartridge packaging for the HP Indigo 6000 and 7000 series Digital Presses. The new cushioning tray is made of 100 percent recycled, molded pulp and is 100 percent recyclable. Users can now dispose the cushioning tray with the ink cartridge’s cardboard box.

 

© Mouseworld Now News Service

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