Zeller+Gmelin launches offset cold foil UV LED adhesives

Zeller+Gmelin said the cold foil effects produced with the adhesive feature a sharp edge definition in printing and are stable in the ink duct, even with high-volume print runs.

The highly reactive UV LED cold foil adhesives are cured in the 385 and 395 nm wavelength ranges.

The difference between the two adhesive systems is the coloring: Uvalux LED U0850 is a yellow-colored adhesive intended for use on gold foils and Uvalux LED U0851 is a grey-colored system for silver foils. Uvalux LED U0850 and LED U0851 adhesives are available in standard and low migration variants.

Zelller+Gmelin quotes advantages for UV LED as low energy consumption and a long service life as well as the elimination of warm-up time and waiting time when the lamps are switched on or off. The systems do not contain any mercury, do not release any ozone and due to the lack of infrared radiation, they are also suitable for temperature-sensitive substrates since the influence of heat on the substrate is reduced.