Ink ribbon having elastomeric protective backing
US4886386A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 30, 1987 |
| Grant date | Dec 12, 1989 |
| Priority date | — |
| Expiry date | Sep 30, 2007 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J31/00
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
An overlappingly overstrikeable ink ribbon for matrix or needle printing systems is described having a carrier film and an ink-releasing coating, as well as optionally further conventional intermediate coatings. A rubber-elastic layer is formed on the needle impression side. A process for producing this ribbon is also described. This ribbon has many advantages compared with known ribbons. It protects the print head, withstands the needle pressure for a longer time due to the elastic layer and improves the printing definition. It can be produced by coextrusion of the starting materials of the carrier film and the rubber-elastic layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.