Fabric printer ribbon with nigrosine ink
US5084333A · kind A · utility
5Cited by
4References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 16, 1990 |
| Grant date | Jan 28, 1992 |
| Priority date | — |
| Expiry date | Feb 16, 2010 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/2893
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A printer ribbon having nigrosine dye with hydroxide counter ion, preferably at 23% by weight, in an oleic acid vehicle to form an ink saturating a fabric. The ribbon has the long life of a dye-only fabric ribbon and is effective for both correspondence and bar code applications.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.