Whether manufacturers market their goods with coupons or gift certificates, the advances in desktop publishing and other printing technologies makes the role of a paper substrate even more important. Some of the advanced security features in papermaking include the ability to be used with specialized inks. Other features include watermarks, which are patterns that can be incorporated into the paper only during the manufacturing process. Fibers and planchettes are also used, and can be made visible or invisible to the human eye. A UV light is used to authenticate the paper used in a label or package.
Chemical reactivity is another way to battle counterfeiting.
Although it is not necessarily used in product security applications, the introduction of a substance into the substrate which reacts with chemicals used by counterfeiters, such as bleach or alcohol, renders a banknote or valuable document worthless. Security Films Among consumer products manufacturers, pharmaceutical companies are very sensitive to the problem of product tampering, but their concerns go well beyond that. With organized criminal enterprises counterfeiting every successful brand in every industry sector imaginable, tamper evident solutions serve more than one purpose. In the global marketplace in which these firms operate, certain geographic areas are more prone to these problems than others. These worthless rip-offs that can kill the people using them, either by poisoning or by providing no actual medicine to relieve the symptoms of their illness.