Colour performance of ceramic nano-pigments

Ceramic nano-pigments have been recently developed for ink-jet decoration of ceramic tiles using quadrichromic technology (cyan, magenta, yellow, and black colours). The colouring mechanisms and performance of CoAl 2O 4, Au, (Ti,Cr,Sb)O 2 and CoFe 2O 4 nano-pigments were investigated by DRS, XRD and...

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Bibliographic Details
Published in:Dyes and pigments 2009-02, Vol.80 (2), p.226-232
Main Authors: Cavalcante, P.M.T., Dondi, M., Guarini, G., Raimondo, M., Baldi, G.
Format: Article
Language:English
Subjects:
Ceramic pigments
Ceramic tiles
Colour
Nano-pigments
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Summary:Ceramic nano-pigments have been recently developed for ink-jet decoration of ceramic tiles using quadrichromic technology (cyan, magenta, yellow, and black colours). The colouring mechanisms and performance of CoAl 2O 4, Au, (Ti,Cr,Sb)O 2 and CoFe 2O 4 nano-pigments were investigated by DRS, XRD and colorimetry. The nano-pigments were dispersed in several ceramic glazes and glassy coatings and their colour performance was compared with that of conventional micro-pigments. Each nano-pigment was characterized in terms of its colour mechanism and chemico-physical stability. Although the micro-pigments provided more saturated hues, intense colours were achievable in nano-pigments despite their very small particle size (1200 °C) due to particle growth (e.g. Au) or dissolution in the glassy phase (e.g. titania).
ISSN:0143-7208
1873-3743
DOI:10.1016/j.dyepig.2008.07.004