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Spectroscopic Investigation of IJ Layer Yellowing

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The authors have investigated the use of fluorescence spectroscopic measurements as a method for the analysis of yellowing mechanisms in accelerated ageing tests. Two model films with defined composition were used to establish the spectroscopic method. The method was then applied to samples that had undergone accelerated ageing by ozone, thermal and humidity degradation, light exposure and chemical contamination. The use of several different spectroscopic methods allowed to discriminate between optical brightener degradation, yellow stain formation and light scattering. The results were compared to those obtained form spectral densitometer measurements.

Document Type: Research Article

Publication date: January 1, 2007

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  • 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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