Ink ribbon
US6309118A · kind A · utility
4Cited by
5References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 7, 2000 |
| Grant date | Oct 30, 2001 |
| Priority date | — |
| Expiry date | Jun 7, 2020 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J35/18
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
An ink ribbon adapted to be used for a sublimation type thermal transfer printer, said ink ribbon comprises a ribbon-shaped substrate, ink layers formed on a surface of said substrate and containing dyes, sensor marks formed on said surface of said substrate and a back coat layer formed on the other surface of said substrate, said sensor marks containing first carbon black with an average particle diameter of 30 nm or less and second carbon black with an average particle diameter of 270 nm or more. Such an ink ribbon significantly improve the reliability of detecting sensor marks and the shelf life.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.