Apparatus and method for a sub microscopic and optically variable image carrying device
US9310676B2 · kind B2 · utility
0Cited by
9References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 9, 2010 |
| Grant date | Apr 12, 2016 |
| Priority date | — |
| Expiry date | Jul 15, 2033 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C2059/023
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The present invention relates generally to an apparatus for embossing a flexible substrate. More specifically, the present invention relates to an apparatus for embossing a curable composition coated flexible substrate with an optically variable image transferred from an embossing foil, especially belt, or sheet of an optically transparent fluoropolymer. The optically variable image is irradiated through the embossing belt, or sheet with ultraviolet light contemporaneously with the embossing so that the transferred imprint pattern cures, hardens, and retains its shape.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.