Safety label or adhesive tape with evidence of tampering
US8944470B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 30, 2011 |
| Grant date | Feb 3, 2015 |
| Priority date | — |
| Expiry date | Aug 20, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09F2003/0277
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A tamper-evident adhesive security tape or label includes a flexible backing substrate with a surface that bears an embossed varnish layer, a semitransparent metal layer and/or a high refractive index layer, a partial release varnish layer, one or more varnish layers having optical properties, a full-area release varnish layer, a full-area varnish layer, and a self-adhesive coating layer. In regions not coated with the partial release varnish layer, an adhesion of the embossed varnish layer, the semitransparent metal layer and/or the HRI layer, the one or more varnish layers having optical properties, the full-area release varnish layer, the full-area varnish layer, the self-adhesive coating layer, and an article to be secured to one another is greater than an adhesion of the one or more varnish layers having optical properties to the full-area release varnish layer or an adhesion of the full-area release varnish layer to the full-area varnish layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.