Artificial Aging Tests on the Samples of Staedtler 430M Red Ink, Corvina 81 Red Ink and Rhodamine 6G Red Dye by Means of Fluorescence

It is assumed that ink does not age in the cartridge, but only after it is placed on paper where dyes fade, solvent diffuses and evaporates and resin polymerizes. This study employed fluorescence detection after an optimal HPLC separation of the artificially aged samples of two inks and one dye. It was proved that the aging process was related with photo-degradation of dyes present in the inks, but not heating. The measured ratio changes of peak heights of the existing peaks over the extra peaks arising from the artificially aged dye contained in the inks clearly showed a function of exposure time to normal daylight and could be used to establish an aging curve.

Parallel keywords

Artificial Aging of Ink ； Ballpoint Pen Ink ； Fluorescence Detection ； Staedtler 430M Ink ； Corvina 81 Ink ； Rhodamine 6G dye ； High-Performance Liquid Chromatography Minutiae Extraction

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Artificial Aging Tests on the Samples of Staedtler 430M Red Ink, Corvina 81 Red Ink and Rhodamine 6G Red Dye by Means of Fluorescence

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