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Improving Inkjet Print Performance of Plain Sized Paper with Nanostructured Pigments

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Following the industry trends, it is clear that commercial inkjet printing will compete increasingly with traditional printing processes in the coming years. While special paper is already available for traditional impact printing processes, papers that meet the requirements of high speed inkjet printing are just in the infancy of their development. Standard papers, like those found in the office, still exhibit significant weaknesses in such important properties as optical density, gamut and water resistance.

A very thin layer of a fumed silica based coating (0.5-2.0 g/m2) applied to plain paper at the size press improves inkjet printing performance. The silica coating behaves as an inorganic sponge with a well defined void and channel structure to absorb ink rapidly for enhancing color qualities, print uniformity and image resolution. In the presentation we show results of a paper machine trial and compare nano-structured silica based pigments with traditional coating pigments, e.g. calcium carbonate. Comparisons are made to other approaches, such as the incorporation of multivalent metal ions into the paper.

Document Type: Research Article

Publication date: January 1, 2009

More about this publication?
  • For more than 25 years, NIP has been the leading forum for discussion of advances and new directions in non-impact and digital printing technologies. A comprehensive, industry-wide conference, this meeting includes all aspects of the hardware, materials, software, images, and applications associated with digital printing systems, including drop-on-demand ink jet, wide format ink jet, desktop and continuous ink jet, toner-based electrophotographic printers, production digital printing systems, and thermal printing systems, as well as the engineering capability, optimization, and science involved in these fields.

    Since 2005, NIP has been held in conjunction with the Digital Fabrication Conference.

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