Method of forming hydrophobic coating layer on surface of...

Details Method of forming hydrophobic coating layer on surface of... Method of forming hydrophobic coating layer on surface of...

2006-11-07

2010-12-07

Jolley, Kirsten C (Department: 1715)

Coating processes

Centrifugal force utilized

C427S282000, C427S284000

Reexamination Certificate

active

07846495

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.

REFERENCES:
patent: 5985122 (1999-11-01), Conner
patent: 2006/0141167 (2006-06-01), Asuke
patent: 2006/0221129 (2006-10-01), Silverbrook

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