1. Observe the material and structure
Tamper-evident paper material: The label uses special tamper-evident paper or PVC film, with a breaking strength lower than the adhesive force of the glue, causing it to break irregularly when torn.
Die-cut design: The label has built-in die-cut lines that break when torn, preventing complete removal.
Void technology: After tearing, the surface will leave words such as "opened," and the base material and surface layer will separate, making it impossible to restore.
2. Test the destructive effect
Tear test: Try tearing the label. If the following situations occur, it is a tamper-evident design:
The label breaks into irregular fragments (tamper-evident paper).
The torn area displays pre-set text (such as "VOID") or patterns.
The label breaks and cannot be re-attached (die-cut or anti-tamper design).
3. Check the application scenario
High-value goods: Such as electronic products and cosmetics, usually use tamper-evident labels to prevent resale.
Anti-counterfeiting requirements: Labels combined with QR codes or laser technology are often tamper-evident designs to ensure anti-counterfeiting.
4. Compare with non-tamper-evident labels
Non-tamper-evident labels (such as ordinary self-adhesive labels) can be completely preserved after being torn off, while tamper-evident labels will be completely destroyed.
