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Application of Wet Image Analysis on Recycled Paper Ink Elimination Evaluation

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This paper introduces a new image analysis approach to determine ink elimination using scanning high-resolution scanning image acquisition combined with innovation specimen preparation. Saturating white fiber in handsheets with water turns fiber translucent [1]; hence, the trapped ink specks become visible through the entire thickness of the handsheet. Thus, it is possible to obtain extra and accurate speck information with the same image analysis settings. Two-side scanning also becomes unnecessary with proper set-up. Furthermore, the increased scanning resolution and rewetting not only detect smaller specks, but also eliminate the negative effect from the uneven surface, such as holes and even wrinkles. The result has positive relation with handsheet optical properties. More importantly, with a concept of ink elimination rate, it provides a reliable deinking predication compared with the limitations of the ERIC method.
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Document Type: Research Article

Publication date: 2012-01-01

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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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