ID documents having a multi-layered laminate structure
AssigneeL-1 Secure Credentialing, Inc.
InventorsDaoshen Bi, Robert L. Jones
Life of this patent
Estimating the term…
Abstract
An ID document includes a document core and a multi-layer laminate. The multi-layer laminate includes at least three layers: a top layer, a middle layer, and a bottom layer. The top layer, in combination with other layers, provides durability to the ID document. The top layer can be made of a material with strong intrusion or scratch resistance and a high thermal softening/deformation point and can also have high resistance to solvents. The middle layer may be made of a material with a low melting point, and may also have high resistance to solvents. The bottom layer helps to facilitate strong binding to the document core or inlay and may be made of a material with a relatively high melting point.
Claims36
An ID document comprising:
- a document core layer having two opposed surfaces;
- and
- a multi-layer laminate on at least one surface of the document core layer, the multi-layer laminate comprising:
- a top layer;
- a middle layer;
- and
- a bottom layer,
- wherein a melting point of the bottom layer is higher than a melting point of the middle layer but is lower than a thermal softening/deformation point of the top layer.
An ID document comprising:
- a document core having two opposed surfaces;
- and
- a multi-layer laminate on at least one surface of the document core, the multi-layer laminate comprising:
- a top layer, the top layer being composed of a first material having at least one of:
- strong intrusion resistance, high scratch resistance, high mechanical strength, high chemical resistance, high thermal softening/deformation point and high resistance to solvents;
- a middle layer, the middle layer being composed of a second material having a low melting point;
- and
- a bottom layer, the bottom layer being composed of a third material having strong binding to the document core and a melting point higher than the middle layer.
A smart card document comprising:
- an inlay having two opposed surfaces, the inlay further comprising at least one of an electronic processing circuitry and an electronic memory circuitry embedded therein;
- and
- a multi-layer laminate on at least one surface of the inlay, the multi-layer laminate comprising:
- a top layer;
- a middle layer;
- and
- a bottom layer, wherein a melting point of the bottom layer is higher than a melting point of the middle layer but is lower than a thermal softening/deformation point of the top layer.
A method of manufacturing a smart card document, the method comprising:
- providing an inlay having two opposed surfaces, the inlay comprising at least one of an electronic processing circuitry and an electronic memory circuitry embedded therein;
- providing a multi-layer laminate, the multi-layer laminate comprising a top layer, a middle layer, and a bottom layer, wherein a melting point of the bottom layer is higher than a melting point of the middle layer but is lower than a thermal softening/deformation point of the top layer;
- and
- applying the multi-layer laminate on at least one surface of the inlay.
Dependencies are inferred from the claim text.