Logo printing is done with black light sensitive colour and can be applied to any label. It is preferably recommended in combination with other safety factors, such as self-destructing material. Other print designs are also possible.
The imprint is not visible to the human eye under normal lighting conditions. Only deliberate inspection under a black light lamp makes it visible. In the thermal transfer printer, black light-sensitive imprints can be easily overprinted so that not a millimetre of scarce label space is lost for sales-related data. The print design remains concealed until its effect is deliberately activated to expose label fraud.