Simulated security thread by cellulose transparentization

Details Simulated security thread by cellulose transparentization Simulated security thread by cellulose transparentization

D - Textiles, Paper

21

H

D21H 21/40 (2006.01) B42D 15/00 (2006.01) B44F 1/12 (2006.01) D21H 11/00 (2006.01)

Patent

CA 2396367

A security document is provided comprising a finished cellulosic substrate having at least one transparentized portion formed therein. The transparentized portion comprises a transparentizing composition that is applied so as to define an area of increased transparency in the substrate. The area of increased transparency includes at least one thin line and resembles a simulated security thread. The transparentizing composition can be applied to form thin lines in a variety of configurations on one or both sides of the substrate.

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