Neither a screen nor a stamping tool is necessary. Rather, a special UV varnish is applied, which is cured by means of a UV drier (LED or conventional) and becomes a tactile and therefore readable pattern.
An Xdot Braille print head has 6 reliably operating nozzles, which can apply two lines of Braille at a time in the printing direction at a speed of up to 50 m/min. Multiple print heads apply up to 16 lines simultaneously. This makes it possible to simultaneously print on labels arranged side-by-side on a roil, for example.
As the pharmaceutical industry demands 100% control, the Xdot digital printing system can be linked to the Baumer hhs Braille inspection system. By using special lighting and special lighting geometry, Braille dots are controlled independently of the printed substrate. An error signal for a marker or an ejector is output if defective products are detected.