Coated nozzle plate for ink jet printing
US5812158A · kind A · utility
25Cited by
14References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 18, 1996 |
| Grant date | Sep 22, 1998 |
| Priority date | — |
| Expiry date | Jan 18, 2016 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2/1606
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A nozzle plate for an ink jet print head which is coated with a low surface energy polymer with the attaching surface further coated by tantalum in a thickness range of 50 to 500 Angstroms. The tantalum gives excellent attachment over a wide range of environments. A master sheet of individual nozzle plates is first coated by chemical vapor deposition and then sputter coated with tantalum on the attachment side. These are quite inexpensive and avoids the use of a more expensive gold coating.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.