The Standard Register Company

Steven L Yeager

Rajendra Mehta

Stephen D Webendorfer

A document uses a chemically reactive security ink to facilitate security, making it more difficult to alter a genuine security document. The chemically reactive security ink masks a warning word or message on a security document. The hidden warning word or message is revealed when the document is subjected to chemical washing.

Chemically reactive security ink, a method of use of such ink, and security documents incorporating such ink

The invention is a method and system that is useful to authenticate security paper. Specifically, the present invention relates to a method and system that allows security paper to be authenticated more than once without destroying the authentication mechanism. An authenticating solution is applied to a surface of an authentic document or other authentic security paper. Subsequent application of an activating solution to a surface of a document containing the authenticating solution causes a reversible color change allowing the document to be authenticated.

Reversible and reusable authentication system for secure documents

An antistatic composition is provided for use with a label construction which includes an organic cationic polyelectrolyte, a binder, and a surfactant. The composition is preferably used in a label construction comprising a polymer film substrate having a pressure sensitive adhesive on its second surface, a release liner overlying the pressure sensitive adhesive, with the antistatic composition being provided on the second surface of release liner. The antistatic composition reduces the surface resistivity of the second surface of said release liner. The antistatic composition may also be used in combination with a toner adhesion-enhancing coating which is provided on the first surface of the substrate to improve print quality. The labels may be stacked or provided in roll form such that the antistatic composition reduces the coefficient of friction between adjacent labels and prevents the build-up of static charges on the labels.

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Dayton, OH, United States of America

Steven L Yeager