The effect of paper quality and color stability on the archiving of chromatograms printed by ink-jet technology

摘要

The effect of the quality of paper used for ink-jet printing on the archiving of TLC chromatograms has been studied. Two different types of paper, ICP Permanent Paper and HP Photo Premium Paper, were tested. The printing and writing characteristics of the papers were investigated by use of a penetration dynamics analyzer (Ada). Testing of the permanence and durability of color prints and paper revealed significant differences between the papers. the H Premium Photo Paper is not optically and color durable - the paper becomes yellow and the borders of black color prints become red. Results from densitometric reflectance measurements were indicative of higher color intensity on the HP paper, which is in agreement with results obtained by PDA. This indicates that printing inks tend to accumulate on the surface of the HP paper, which is like a foil. Results obtained by use of a CCD camera gave more information about the radial distribution of the printing inks on the paper than densitometric results. On the HP Photo Paper the dyes are distributed homogeneously inside the spots, but are concentrated in a circle on the border between the spot and the unprinted paper.