Security Technologies

Tamper Evidence

Void films, fiber tear adhesives, security die-cuts, cut-through indicators, rub-off areas and transfer effects irrevocably indicate the initial opening or tampering of a package or the tampering of a document.

Advantages of Tamper Evidence

Reliable indication of an initial opening
Customized design
High process reliability in processing and dispensing

Also possible for cryogenic and deep-freeze applications
Effects are partially combinable with each other

Possibilities for Tamper Evidence

Void films

Void films destroy themselves reliably when removed and indicate the initial opening with an individual message (e.g. VOID, OPENED).

Strongly adherent adhesives can ensure that a seal cannot be removed without breaking a package.

The security feature is not visible on void films before they are removed …

... and a re-stick is clearly recognizable.

Fiber-tear adhesives

Strongly adhesive fiber tearing adhesives ensure that a seal cannot be removed without generating a fiber tear.

Label on folding box comes off with fiber tear

For reliable generation of a fiber tear, the adhesive is matched to the material of the folding box.

Security die-cuts

Security die-cuts in the material lead to the destruction of the label if an attempt is made to detach it from the substrate, thus irrevocably indicating tampering. If the label is removed, the label breaks into many small pieces. Reuse is thus ruled out.

Label is destroyed by safety punching when peeling off

Labels with security die-cuts are destroyed when tampering is attempted.

Security die-cuts can be combined with other anti-counterfeiting features.

Security die-cuts are possible for a wide variety of applications, such as case seals.

Scratch surfaces

Scratch layers have proven themselves millions of times over in secret number mailing. A PIN code for access to confidential data, accounts or as proof of authentication thus reaches the end user reliably protected.

The opaque scratch-off surface makes it impossible to spy out PIN codes.

Rubbing surface for official application

Whether in letters or government applications, scratch-off surfaces help protect confidential data with absolute security.

With scratch-off surfaces, confidential data can be reliably protected and tampering is clearly detectable.

Transfer effects

Transfer effects result from a unique product design that offers the highest possible tamper protection: If the protective film is removed after bonding, only the adhesive and ink remain on the substrate. When trying to lift or detach, the imprint breaks into many small pieces.

Due to transfer effects, adhesive and ink remain on the substrate when the label is attempted to be removed.

Transfer effect as tamper evidence for regulatory applications

Transfer effects are excellent as tamper evidence for regulatory applications.