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Effect of Surfactant Chemistry on Deinkability

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A detailed discussion of synthetic nonionic and anionic surfactant combination based near-neutral deinking is presented. It is shown that by choosing a nonionic surfactant with a desired hydrophile-lipophile balance during pulping and using a small amount of anionic surfactant during flotation, excellent deinking of LEP as well as dye-based inkjet and various other prints are obtained. All the results are obtained without adding any bleaching stage, which can further enhance the results. High flotation yield in the range of 80-85% with minimal fiber loss, as shown by thermogravimetric analysis, is also obtained.

Document Type: Research Article

Publication date: 2010-01-01

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  • 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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