Tamper-indicating printable sheet where microbeads are embedded in an ink receptive beadbond layer

摘要

A tamper-indicating printable sheet (10) is disclosed. The sheet (10) comprises a retro-reflective layer (18) comprising a plurality of microbeads (12) partially embedded in an inkjet receptive beadbond layer (14) and a reflector layer (20). This layer may be glued (16) to a suitable substrate (22). The reflector layer (20) is between each one of the microbeads (12) and the inkjet receptive beadbond layer (14). If the printed image (28) is removed the micro beads (12) will also be dislodged. This shows if the sheet (10) has been tampered with by no longer being reflective in that area or by displaying hidden printing (24).