Application of Infrared Spectroscopy in the Monitoring of Curing of Acrylate UV Inks
Chair of Polygraphy and Applied Photochemistry, Slovak Technical University, Bratislava, Slovak Republic
The light-induced crosslinking polymerisation of the UV- curable acrylate inks based on2,2-bis(hydroxymethylpropan--1-ol triacrylate) was investigated by IR spectroscopy. During curing, a decrease in tbe absorption band at 810 cm-1 was monitored, indicating the disappearance of double bonds in the original ink. The optimum quality of the photocured layer was obtained after a 10-min exposure under given experimental conditions.
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