Liquid discharging nozzle and method for recovering water-repellent layer of the liquid discharging nozzle
US8657410B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 31, 2012 |
| Grant date | Feb 25, 2014 |
| Priority date | — |
| Expiry date | Jul 31, 2032 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2/162
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A liquid discharging nozzle of the present invention includes (i) a liquid reservoir for reserving a discharging liquid and (ii) a discharging tube connected to a bottom part of the liquid reservoir. A water-repellent layer is provided on an inner surface of the discharging tube, on an inner surface of the discharging tube, and on an inner surface of the liquid reservoir, and is a fluorinated water-repellent layer. An aluminum oxide layer and a silicon oxide layer are used as foundation layers of the fluorinated water-repellent layer. The aluminum oxide layer, the silicon oxide layer, and the fluorinated water-repellent layer, which are stacked together, have a combined thickness of not more than 25 nm. The fluorinated water-repellent layer alone has a thickness of 1 nm to 4 nm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.