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Print Quality Evaluation of Silica-Based Ink Jet Paper Coatings: Sheet vs. Continuous Coaters

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Various protocols for measuring the quality of color ink jet prints have been developed. An automated image analysis system has been constructed and programmed to evaluate print quality measures including color gamut, black optical density, print mottle, bleed, linewidth, raggedness, and sharpness. After defining print quality evaluations a silica-based coating was coated onto paper using the continuous coating methods of a puddle press, a rigid blade coater, and a metered size press. Using the same coating, a laboratory bench-top coating unit was used to generate single sheets of papers at equal coat weights to the continuous scale. Comparisons were made between laboratory sheets and continuously generated sheets using image analysis derived measures of print quality. The information gained is useful in deciding whether laboratory screening of various coatings formulations will be of use in projecting commercial print quality. In addition, while generating this information, the benefits of a silica gel-based coating were evident.

Document Type: Research Article

Publication date: January 1, 2000

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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