Patent ID: 8353575

Claim:
A method for manufacturing a nozzle sheet used for an inkjet head for an inkjet printer comprising: providing a first dummy substrate; patterning a liquid-repellent film on the first dummy substrate; forming a first resin sheet on the first dummy substrate to cover the liquid-repellent film; forming a first nozzle in the first resin sheet which penetrates through the first resin sheet, and forms a nozzle exit on a surface of the first resin sheet adjoining the liquid-repellent film; and peeling the first dummy substrate off the first resin sheet thereby forming the nozzle sheet wherein the first resin sheet surface surrounding the nozzle exit is covered by the liquid-repellent film, which prevents wetting of the first resin sheet surface surrounding the nozzle exit by ink, and wherein an inner surface of the first nozzle is free from the liquid-repellent film.