Envelopes
Our stock adhesive seals can be used to secure envelopes with confidential information or valuable property.
Tamper Strips for Envelopes
TamperStrips® are a unique tamper evident label which is designed to provide a visible broken seal. It is sensitive to even the slightest tampering attempts. Because of the flexible design, it is effective on containers with unusual shapes.
TamperStrips® are constructed of flexible strips, which are connected between two security labels. The two security labels (which are also tamper evident) are die cut off-center from each other. The strips have a very low break strength. There is no adhesive on the strips. Once broken, it is virtually impossible to realign the strips without leaving evidence of tampering. TamperStrips® are effective in indicating most tampering, including when a knife is used to slit open a package with the intent of resealing.
Typical Application Photos
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Frangible Integrity Seals for Envelopes
Frangible paper, which tears easily when removed, is typically used for security seals. The broken seal feature signals tampering. After application, the paper seal can be removed, but it is designed to tear into multiple pieces or delaminate. Our frangible integrity seals also include the hidden security feature of UV-fluorescing fibers, so the labels can be authenticated by exposing them to an ultraviolet black light.
Unlike film security labels, paper is receptive to a wide variety of writing and marking methods, including pencil, ink pen, felt markers, stamping dyes, thermal transfer printers, etc.
Typical Application Photos
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