Systems and methods for printing patterns using near infrared upconverting inks
US10358569B2 · kind B2 · utility
0Cited by
0References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 14, 2014 |
| Grant date | Jul 23, 2019 |
| Priority date | — |
| Expiry date | Mar 14, 2034 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41M3/14
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The present invention relates generally to using upconverting inks for producing highly-resolved patterns for, inter alia, security applications. More specifically, the present invention relates to the use of sols (inks) and printing processes that produce well-defined printed features consisting of polymers impregnated with luminescent upconversion nanocrystals. The patterns printed using such inks and processes may exhibit defined shapes, characters of text, and various other types of images.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.