Tamper-indicating printable sheet for securing documents of value and methods of making the same
View Patent ↗A tamper-indicating printable sheet. A preferred embodiment of the invention provides a tamper-indicating printable sheet comprising a retroreflective layer comprising a plurality of microbeads partially embedded in an inkjet receptive beadbond layer; and a reflector layer between one of the microbeads and the inkjet receptive beadbond layer. The present invention provides a method of making a tamper-indicating printable sheet.
1. A tamper-indicating printable sheet, comprising:
a retroreflective layer consisting essentially of:
a plurality of microbeads partially embedded in a tamper-indicating inkjet receptive beadbond layer; and
a reflector layer between at least one of the microbeads and the tamper-indicating inkjet receptive beadbond layer.
2. The tamper-indicating printable sheet of claim 1 , wherein the retroreflective layer further consists of a covert indicia between the reflector layer and the microbead.
3. The tamper-indicating printable sheet of claim 2 , wherein the covert indicia includes a printed symbol, word, logo, or any combination thereof.
4. The tamper-indicating printable sheet of claim 1 , further comprising a layer of adhesive attached to the tamper-indicating inkjet receptive beadbond layer.
5. The tamper-indicating printable sheet of claim 4 , further comprising a liner attached to the layer of adhesive.
6. The tamper-indicating printable sheet of claim 1 , further comprising a security indicia viewable under retroreflective light conditions.
7. A security document, comprising in combination:
the tamper-indicating printable sheet of claim 1 ; and
a document of value, wherein the printable sheet is inserted or attached to the document of value.
8. The security document of claim 7 , wherein the document of value is a passport, identification card, financial document, entry pass, ownership certificate, a VISA, birth certificate, resident authorization or any other security or identification-related document.
9. A tamper-indicating printable sheet, comprising:
a retroreflective layer comprising a plurality of microbeads partially embedded in an inkjet receptive beadbond layer, wherein the inkjet receptive beadbond layer is formulated such that it indicates tampering after a solvent is applied to the inkjet receptive beadbond layer; and
a reflector layer between at least one of the microbeads and the inkjet receptive beadbond layer.
10. The tamper-indicating printable sheet of claim 9 , further comprising a covert indicia between the reflector layer and the microbead.
11. The tamper-indicating printable sheet of claim 10 , wherein the covert indicia includes a symbol, word, logo, or any combination thereof.
12. The tamper-indicating printable sheet of claim 9 , further comprising a layer of adhesive attached to the inkjet receptive beadbond layer.
13. The tamper-indicating printable sheet of claim 12 , further comprising a liner attached to the layer of adhesive.
14. The tamper-indicating printable sheet of claim 9 , further comprising a security indicia viewable under retroreflective light.