Method of forming a nozzle for an ink-jet printer head
AssigneeSeiko Epson Corporation
InventorYasuhiro Ouki
Life of this patent
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Abstract
A coating layer 5 made of a fluorine-containing polymer and having a thickness of 20 to 700 nm is formed on a surface of a nozzle forming member made of plastics which can be ablated by an excimer laser. Then, the nozzle forming member 1 is irradiated from its back by the excimer laser to generate high-density excited species in the irradiated portion. Using the force owing to the decomposition and scattering of the excited species, a nozzle 7 is formed and the coating layer 5 on the nozzle 7 is removed.
Claims4
A method of forming a nozzle for an ink-jet printer head, comprising the steps of:
- preparing a nozzle forming member made of plastics which can be ablated by an excimer laser;
- forming a coating layer made of a fluorine-containing polymer on a surface of said nozzle forming member made, said coating layer having a thickness at which said coating layer can be completely removed from a nozzle by the ablation of said nozzle forming member and which is at least 20 nm;
- and
- forming a nozzle by irradiating the excimer laser in a direction from a back of said nozzle forming member to a nozzle formation portion.
A method of forming a nozzle for an ink-jet printer head, comprising the steps of:
- preparing a nozzle forming member made of plastics which can be ablated by an excimer laser;
- forming a coating layer made of a fluorine-containing polymer on a surface of said nozzle forming member, said coating layer having a thickness at which at least a part of said coating layer can be removed from a nozzle by the ablation of said nozzle forming member and which is 20 nm or more;
- forming a cover layer on said coating layer, said covering layer made of plastics which can be ablated by the excimer laser;
- forming a nozzle by irradiating the excimer laser in a direction from a back of said nozzle forming member to a nozzle formation portion;
- and
- after said nozzle formation step, separating said covering layer from said coating layer.
Dependencies are inferred from the claim text.