Ink transfer ribbon
US6277475A · kind A · utility
0Cited by
4References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 13, 1998 |
| Grant date | Aug 21, 2001 |
| Priority date | — |
| Expiry date | Jul 13, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
An ink transfer band has (a) a microporous flexible substrate; (b) one or more optional intermediate layers; and (c) one or more layers of a transfer ink. The ink transfer ribbon is characterized in that the back side of the substrate has a surface roughness depth R.sub.t of at least approximately 400 nm and an average roughness value R.sub.a of at least approximately 40 nm. This transfer ribbon has the advantage of solving in a simple and economical manner the problems related to oil migration and static electricity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.