FILM MATERIAL COMPRISING AT LEAST ONE WATERMARK HAVING A COLOURED NUANCE

摘要

The invention relates to a film material (2) comprising at least one first layer defining an external face of the film material and provided with at least one first colour, and at least one second layer comprising at least one watermark (6) and being provided with at least one second colour, the first and second colours having at least saturations and/or different colour shade angles.