| abstract |
The present invention is a laser marking multilayer sheet for electronic passports comprising three sheets of sheet A / multilayer sheet B / sheet C as a basic structural unit, wherein sheet A is transparent containing a thermoplastic polycarbonate resin and a laser light energy absorbing material. A polycarbonate resin composition, wherein the multilayer sheet B comprises a transparent thermoplastic resin containing a thermoplastic polycarbonate resin, and at least one of the skin layer and the core layer of the multilayer sheet B is one or more selected from dyes and pigments. The sheet C relates to a laser marking multilayer sheet for an electronic passport comprising a sheet or a laminate sheet. Excellent laser marking, high contrast, clear letters, symbols, images can be obtained, and an electronic passport that combines heat fusion, transparency, sheet transportability, mold release after heat press, heat resistance, bendability, and abrasion resistance. The present invention provides a laser marking multilayer sheet. |