; Nieves, L.J.J.
; Melchiades, Fabio G.
; Boschi, Anselmo O.
Searching for the Causes for the Differences in Performance of
Commercial Inks Used in Digital Decoration of Ceramic Tiles
Interceram 65 (2016)  223-225
The inkjet digital printing has revolutionized the ceramic tile sector in
recent years. In a previous work, the colorimetric behavior of commercial
inks and their spreading behavior on the ceramic substrate were evaluated.
The inks present significant differences in theses aspects, which, in
practice, result in differences in the provided color gamut, the resolution
of the printed images and their yield. This work aimed to identify the
causes of the differences observed in the performances of some of the
studied inks. It was found that inks from different manufacturers supposed
to provide the same color, contained different pigments, which
explain their colorimetric differences. It was also found that the viscosity
of the inks varies considerably, which probably is partially responsible
for the observed variation of the spreading ratio.
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