In line manufacturing of documents with security elements
US10752044B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 22, 2015 |
| Grant date | Aug 25, 2020 |
| Priority date | — |
| Expiry date | Apr 22, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03H2270/31
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A method and apparatus for in-line manufacture of a security document with a structured security element is provided in which a continuous web of document substrate is fed through a series of processing stations. The processing stations include a station for forming a structured security element in a radiation sensitive coating applied to the document substrate, and at least one station for applying at least one additional layer to the document substrate excluding the security element area. In a security document manufactured with the method or apparatus, the additional layer or layers have a combined thickness which is preferably substantially equal to the height of the structured security element or which differs from the height of the structured security element by a predetermined amount.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.