| 摘要 |
PROBLEM TO BE SOLVED: To establish a method for enhancing the compatibility of ink with an inner surface of a passage of an inkjet head, and to enhance air bubble dischargeability in the passage which is brought into contact with the ink. SOLUTION: This inkjet head is manufactured as follows: a common ink chamber 12, an orifice 10, an ink passage part 9 and a nozzle groove 7, which are to be brought into contact with the ink, are brought into contact with an aqueous solution containing an ink dye, without going through drying and water-repellent treatment processes, after being cleaned with a cleaning fluid with etching properties for silicon and a silicon oxide film 19 and replaced with pure water; the ink dye is preadsorbed by a liquid contact surface which is to be brought into contact with the ink; and the liquid contact surface is presoaked in the ink dye. Thus, the ink can more easily adhere to the whole liquid contact surface which is brought into contact with the ink than the ink adheres thereto by a conventional method of the adsorption and soaking of the ink dye after the drying and water-repellent treatment processes. This makes the liquid contact surfaces of the ink chamber 12, the orifice 10, the passage part 9 and the nozzle groove 7 more wettable for the aqueous solution containing the ink dye, and enhances the air bubble dischargeability. COPYRIGHT: (C)2004,JPO
|
