engleski

Light Accelerated Ageing of White Ink Printed in UV LED Inkjet Technique

Durability of light inks have not been explored enough. This is due to inorganic pigments whose particles are relatively large, so all of them can’t be applied in digital printing technologies. The goal is to determine the possible persistence of white prints, printed in three different thicknesses of layers (6.18 μm, 14.27 μm, 16.45 μm) and later aged with accelerated simulation method using UV light source (Xeno test). This will be analyzed in different times of 0h, 6h, 12h, 24h, 48h, 72h, 144h and 244h. The biggest color changes white prints are going to gain after 144h of accelerated ageing. Screened areas are going to have bigger changes, which are going to increase with thicker layers of white ink (ΔE1 layer=1, 44, ΔE2 layers=1, 72, ΔE3 layers¸60% dot gain=2, 74).

UV light accelerated aging; white ink printing; UV LED Inkjet

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