Method of forming hydrophobic coating layer on surface of nozzle plate of inkjet head
US7846495B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 7, 2006 |
| Grant date | Dec 7, 2010 |
| Priority date | — |
| Expiry date | Oct 7, 2029 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2/1645
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
An inkjet head having a hydrophobic coating layer and a method of forming the hydrophobic coating layer on a surface of a nozzle plate of the inkjet head. The method includes filling a wax into a plurality of nozzles formed in the nozzle plate while coating the surface of the nozzle plate with wax, removing the wax from the surface of the nozzle plate, forming a hydrophobic coating layer on the surface of the nozzle plate, melting the wax filled in the nozzles, and removing portions of the hydrophobic coating layer covering the nozzles by discharging the melted wax through the nozzles using heat and/or pressure. Therefore, the hydrophobic coating layer is uniformly formed only on an outer surface of the nozzle plate, without forming the hydrophobic coating layer in an inner surface of the nozzles, thereby improving an ink ejecting performance of the nozzles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.