Documents embodying the invention include a sandwich-like structure
comprised of a core layer on which information may be printed using inks,
a buffer layer bonded to each surface of the core layer for protecting
the printed information and a laser reactive layer on, or in, which
information can be written with a laser, bonded to each one of the buffer
layers. The core layer may be formed of PVC (polyvinyl chloride) or PC
(poly carbonate) material or any other suitable material on which
information can be printed. The buffer layer may be formed of amorphous
polyester material (e.g., PETG) or any other suitable material which can
readily bond to the core layer and the laser reactive layer. The laser
reactive layer may be polycarbonate (PC) or may be any other suitable
plastic material (e.g., PVC, PET, PC, etc.) which includes a chemical
which can react with a laser to produce desirable markings.