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Lightfastness Properties of Different Digital Printers and Papers

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The objective of these experiments is to determine the lightfastness properties of various inks and most common digital printing methods. Lightfastness is the degree to which a dye or ink resists fading due to light exposure. Each ink has a different degree of resistance to fading by light. Because light is energy, the energy that is absorbed by pigmented compounds degrades the compounds or nearby molecules. The experiments described in this document involve printed samples subjected to equal amounts of sunlight exposure using accelerated methods. Statistical analysis comparing before and after data include average color change in terms of ΔE and overall gamut volume is compared. From these calculations, resistance to lightfastness can be accurately quantified.

Document Type: Research Article

Publication date: January 1, 2007

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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