Liquid ejection head and process for producing the same

Details Liquid ejection head and process for producing the same Liquid ejection head and process for producing the same

2009-07-07

2011-12-13

Tran, Huan (Department: 2861)

Incremental printing of symbolic information

Ink jet

Ejector mechanism

C427S553000, C427S554000

Reexamination Certificate

active

08075094

ABSTRACT:
An aspect of the present invention is a process for producing a liquid ejection head including an ejection orifice member provided with ejection orifices for ejecting liquid. The process includes supplying to a surface of a base material for forming the ejection orifice member a mixture of a first composite for imparting a hydrophobic characteristic to the surface and a second composite being able to exhibit a hydrophilic characteristic by being irradiated with light; imparting a hydrophobic characteristic to the entire or a part of the surface by utilizing the first composite; and then irradiating the second composite with light in a partial region of the surface for imparting a hydrophilic characteristic to the region irradiated with the light.

REFERENCES:
patent: 5755867 (1998-05-01), Chikuni et al.
patent: 6540330 (2003-04-01), Kubota
patent: 6830785 (2004-12-01), Hayakawa et al.
patent: 7294365 (2007-11-01), Hayakawa et al.
patent: 2004/0265506 (2004-12-01), Hirai et al.
patent: 2007/0085877 (2007-04-01), Ohkuma

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