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Pilot-Scale Recycling of HP-Indigo Printed Media and Mixed Office Waste

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We show here that good recyclability of HP-Indigo printed media and mixed office waste can be achieved at pilot scale while using our environmentally benign near-neutral deinking chemistry (coded HPES). The pilot trials were performed in a fashion that closely depicts a standard production operation. Various key attributes, such as the optical brightness, dirt count, ERIC value, ash content, and pH, of the accepts and rejects were closely monitored at critical stages of the recycling process. Encouraging statistical data of these various key indicators, for mixed office waste with varying amounts of HP-Indigo printed media (from 0% to 100%), suggest a recovered pulp quality which closely matches that would achieve regularly in a commercial recycling mill. It is noteworthy to point out that good recyclability of HP-Indigo printed media can be accomplished irrespective of the ink coverage and media types.
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Document Type: Research Article

Publication date: 2010-01-01

More about this publication?
  • For more than 30 years, IS&T's series of digital printing conferences have been the leading forum for discussion of advances and new directions in 2D and 3D printing technologies. A comprehensive, industry-wide conference that brings together industry and academia, this meeting includes all aspects of the hardware, materials, software, images, and applications associated with digital printing systems?particularly those involved with additive manufacturing and fabrication?including bio-printing, printed electronics, page-wide, drop-on-demand, desktop and continuous ink jet, toner-based systems, and production digital printing, as well as the engineering capability, optimization, and science involved in these fields. In 2016, the conference changed its name formally to Printing for Fabrication to better reflect the content of the meeting and the evolving technology of printing.

    Please note: For purposes of its Digital Library content, IS&T defines Open Access as papers that will be downloadable in their entirety for free in perpetuity. Copyright restrictions on papers vary; see individual paper for details.

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