Ink jet head having an improved ink discharge surface and ink jet apparatus equipped with the head
US5451992A · kind A · utility
17Cited by
13References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 29, 1992 |
| Grant date | Sep 19, 1995 |
| Priority date | — |
| Expiry date | Oct 29, 2012 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2/1606
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
An ink jet head accomplishes high quality recording for a long term by an improved liquid repellency treatment. This liquid repellency treatment is applied to at least a peripheral portion of a discharge port on an ink discharge port forming surface of the ink jet head. A mixture of a fluorine-containing high polymer compound and a compound having fluorine substituted hydrocarbon group and a silazane group, alkoxysilane group or halogenized silane group is employed as a liquid repellent agent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.