tamper-evident seals
Unopened-proof packaging closures
Tamper-evident seals are closures or packaging features designed to show visible signs if someone has opened or interfered with a product.
The seal itself doesn't prevent tampering—it reveals it.
Common examples include shrink bands on bottle caps, tear strips on medicine boxes, and foil seals under jar lids: Don't use the product if the tamper-evident seal is broken.
- adhesive labelsSticky-backed identification markers
- security tapeBarrier marking restricted zones
- hologramsLight-based dimensional images
- watermarksEmbedded paper identification marks
- microprintingMiniaturized printed characters
void · induction · blister packs · shrink wrap · tear strip · authenticity · serial numbers · lot number · embossing · anti-counterfeiting · adhesives · irreversible · chain of custody · laminates · pilferage · pharmaceutical · food safety · quality control