DATA STORAGE MEDIUM HAVING A LASER-INDUCED BRIGHTENING MARK AND METHOD FOR PRODUCING SAID DATA STORAGE MEDIUM

摘要

Data storage medium (40) having a laser-marked or laser-markable coloured/colourful security feature, comprising a lamination body (30) formed from a plurality of substrate layers (1, 21-24), one of which comprises a colour pattern (3) constructed from differently coloured pattern elements (4-1, 4-x), in which the colour pattern (3) is formed inside the lamination body (30), wherein brightening additives are integrated in the lamination body (30) and can cause brightening (100) and/or whitening inside the lamination body (30) in the event of interaction with laser light. The invention also relates to a method for producing such a data storage medium (30).