MANUFACTURE OF NOZZLE PLATE OF INK JET HEAD

• Main Authors: KIKUKAWA SHOZO, NAMIKI TAKEMASA
• Format: Patent
• Language: English
• Published: 23.01.2001
• Edition: 7
• Subjects: CORRECTION OF TYPOGRAPHICAL ERRORS; i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; LINING MACHINES; PERFORMING OPERATIONS; PRINTING; SELECTIVE PRINTING MECHANISMS; STAMPS; TRANSPORTING; TYPEWRITERS

PROBLEM TO BE SOLVED: To obtain stable discharging performance by perforating a nozzle hole at a substrate, dipping the substrate in a photosensitive resin solution, irradiating the substrate with an ultraviolet ray, developing it, then removing the resin of an ink discharge side, filling a resin in a nozzle hole except a fine-diameter portion, further forming an ink repellent film, and removing the filled resin. SOLUTION: A plate 1 formed with a nozzle hole is dipped in a solution of a photosensitive resin 6. In the case of using a negative type photosensitive resin, the resin is irradiated with an ultraviolet ray from an ink supply side and developed. Then, an exposure portion is cured, the resin of the ink discharge side is dissolved and masked. Or, the ink supply side may be spin coated with the negative type photosensitive resin solution. When this masked plate is dipped in an electrodepositing liquid, and a current is supplied, ink repellent films 1 are formed at the ink discharge side and a nozzle hole 52 of the nozzle plate. Finally, the resin used for masking is released, and an ink lyophile treated and ink repellent treated nozzle plate is formed.