Zeller+Gmelin – New offset cold foil UV LED adhesives
GERMANY • Zeller+Gmelin has launched two new UV LED cold foil adhesives for use on sheet-fed and narrow web letterpress and offset presses. The new products, Uvalux LED U0850 and LED U085, are suitable for producing cold foil effects and with the adhesive feature, a sharp edge definition in printing and are stable in the ink duct, also for print runs with high volume.
The highly reactive UV LED cold foil adhesives are cured in the range of 385 nm and 395 nm wave length. According to Zeller+Gmelin, the difference between the two adhesive systems is the colouring. Uvalux LED U0850 is a yellow-coloured adhesive suitable for use on gold foils. Uvalux LED U0851 is a grey-coloured system for silver foils. The new adhesives are available in standard and low migration variants.
Advantages for UV LED are low energy consumption and a long service life. Also warm-up time is eliminated as well as waiting time when the lamps are switched on or off. According to the company the systems do not contain mercury and do not release ozone. Due to the lack of infra-red radiation, they are also suitable for temperature-sensitive substrates since the influence of heat on the substrate is reduced.