In one aspect, the invention provides a security laminate (10) comprising a retroreflective layer comprising a plurality of retroreflective microbeads (12) partially embedded in and protruding from a beadbond layer (14) and having image receptive material disposed around the protruding microspheres. In another embodiment, the security laminate (10) further comprises indicia patterns viewable in retroreflective light. In another embodiment, the security laminate (10) is imaged on the image receptive material.
申请公布号
WO03070483(A1)
申请公布日期
2003.08.28
申请号
WO2003US04087
申请日期
2003.02.12
申请人
3M INNOVATIVE PROPERTIES COMPANY
发明人
DUNNE, BRIAN, W.;GRAHAM, PAUL, D.;JUNCK, THOMAS;MANN, GRAEME, R.;SCHULZ, MARK, F.