A classic stamp that for a long time used to be the standard way of marking the documents can be faked—but what about a seal that reacts to heat? Due to the utilization of thermochromic ink, a simple test can confirm the authenticity of the seal. “One swipe with a finger is all it takes for the color to change,” explains Dr. Kai Schnapauff, Director, Schreiner PrinTrust. “That’s an unmistakable feature showing very quickly and easily whether or not a document is authentic.”

However, the adhesive seal was not only developed to prevent counterfeiting. “Thanks to the tab patented by Schreiner, using the seal is as easy as child’s play, fast, and precise,” says Manfred Hammerschmidt from Behördenverlag Jüngling, a publishing house for government forms. “Directly interfacing with the government agencies applying the seal it’s obviously important for us as a publishing house to deliver a high-grade product to our customers that’s easy to use as well,” Hammerschmidt adds. The seal is already in use by various counties and government offices including the Berlin state office for matters pertaining to citizens and public order.

The adhesive document seal, by the way, is not only used in conjunction with vehicle documents but increasingly also for other sensitive items such as official certificates, inspection documents, or for signatures.

Moving Forward with Counterfeit Protection

For Schreiner PrinTrust the further development of security solutions remains a central goal. Describing the current situation, Dr. Schnappauf says, “This is a very dynamic field we operate in and which constantly calls for new technologies and solutions to satisfy the growing security needs.” Going forward, a combination of digital and physical security features could deliver even more extensive protection especially in the case of the adhesive seal by combining several protection levels. With their expertise and innovative prowess, Schreiner PrinTrust and Behördenverlag Jüngling are already working on meeting the requirements today and continuing to ensure the security of documents on the highest level.