METHOD FOR PRODUCING A COMPOSITE WEB AND SECURITY DEVICES PREPARED FROM THE COMPOSITE WEB

摘要

A composite security device is provided that is made up of a first polymer film that constitutes or embodies a security feature in the form of at least one high value material, and a second polymer film that constitutes, embodies, or is coated with one or more additional security features. The first polymer film is positioned on and adhered to a surface of the second polymer film, which has a width or diameter greater than the width or diameter of the first polymer film By way of the present invention, the high value material is applied to only a part of the security device, leaving remaining parts of the device available for one or more additional materials that do not impact upon the effect of the high value material.

主权项

1. A method for producing a composite web for making composite security devices, the method comprising:
(a) providing a first polymer film in the form of a first continuous web, wherein the first polymer film constitutes or embodies one or more first security features in the form of at least one high value material; (b) providing a second polymer film in the form of a second continuous web, wherein the second polymer film constitutes, embodies, or is coated with one or more second security features; (c) optionally applying one or more additional security features and/or one or more adhesives to one or opposing surfaces of the first and second continuous webs; (d) in-line slitting the first continuous web into a number of relatively narrow width high value threads or strips; (e) introducing separation between these relatively narrow width high value threads or strips; (f) positioning and attaching the separated high value threads or strips to a surface of the second continuous web to form a continuous composite web; and optionally, (g) laminating one or more protective layers to one or opposing surfaces of the continuous composite web.