Many cards are equipped with an element of personalization as a band to be signed.
It represents a portion of a plastic card, covered with a special composition, in which the owner has to leave his autograph (most often) or a ballpoint pen to make any other prescribed requirements of the mark.
Requirements for the location of the band to sign similar to the general requirements for personalization: the field should not be superimposed on other elements of identification. The most common band to sign is located just below the magnetic strip, so that the edge of the label did not get into the area of the readout element Reader (this leads to damage of the device).
Typically, the distance between the magnetic strip and a field for the signature of 4 mm.
The peculiarity of the band to sign is the fact that to make a mark on it only once. If you try to delete the data and apply over the existing label another - coating loses the original structure.