The laser-sensitive layer (4) consists of laser-sensitive material, e.g. laser-sensitive pigments or other laser-sensitive colorants.

The second laser-sensitive layer is embodied as a carbon-doped overlay film (32).

The layer structure comprises a lacquer layer (50), a reflection layer (5r), a laser-sensitive layer (4), a background layer (5) and an adhesive layer (6).

A diffraction and/or hologram structure (5b) is embodied in the lacquer layer (5c), the reflection layer (5r) and the laser-sensitive layer (4).

The transfer foil has a laser-sensitive layer (4) and a background layer (5) arranged thereunder.

Said hot stamp foil has a laser-sensitive layer in which a laser-induced color image (10y) has been placed by laser treatment.

The imaging systems disclosed herein may include a reflective layer 290 disposed proximate to and beneath a laser imageable layer 220 on an optical disc 200.

A laser-induced marking is produced in the laser-sensitive layer, e.g. by means of laser-induced bleaching, laser-induced color change or laser-induced blackening.

Said laser-sensitive layer (4, 40) comprises a marking (10, 10x, 10y), generated by laser effect, which is positioned precisely by register relative to the recognition element (5r, 5b, 5c, 5d).

A transfer foil or laminated foil that has a laser-sensitive layer is placed on the paper document for said purpose.

The markings (30, 32) are introduced simultaneously and with matching registers into the laser-sensitive layer (20) and the metallized subarea (24) of the securing layer (22).

The laser-sensitive layer (4) is made from a mixture consisting of three constituents.

To this end, a transfer film is preferably used, which has a laser-sensitive layer (4).

The inventive data carrier comprises a laser-sensitive layer (20) that is opaque in the visible spectral range and is combined with a securing layer (22) which is metallized at least in a subarea.