Application of Wet Image Analysis on Recycled Paper Ink Elimination Evaluation
Abstract: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 ; 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.
Document Type: Research Article
Publication date: January 1, 2012
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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