INKJET HEAD METHOD FOR MANUFACTURING INKJET HEAD AND PRINTING APPARATUS

• Main Authors: IRIE KAZUNOBU, NAKATANI SHUHEI
• Format: Patent
• Language: English; Korean
• Published: 10.01.2023
• Subjects: CHEMICAL SURFACE TREATMENT; CHEMISTRY; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING MATERIAL WITH METALLIC MATERIAL; COATING METALLIC MATERIAL; CORRECTION OF TYPOGRAPHICAL ERRORS; DIFFUSION TREATMENT OF METALLIC MATERIAL; i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL; LINING MACHINES; METALLURGY; PERFORMING OPERATIONS; PRINTING; SELECTIVE PRINTING MECHANISMS; STAMPS; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; TRANSPORTING; TYPEWRITERS

An inkjet head (10) comprises: a nozzle plate (11) having a nozzle (12); a pressure chamber (14) connected to the nozzle (12); a compression unit (30) compressing the pressure chamber (14); and a vibration plate (17) transmitting energy generated from the compression unit (30) to the pressure chamber (14). A liquid-repellent film (50) made of a diamond-like carbon film to which fluorine is added is formed on an outer surface (11a) of the nozzle plate (11). 잉크젯 헤드(10)는, 노즐(12)이 형성된 노즐 플레이트(11)와, 노즐(12)에 연통하는 압력실(14)과, 압력실(14)을 가압하는 가압부(30)와, 가압부(30)에서 발생된 에너지를 압력실(14)에 전달하는 진동판(17)을 구비한다. 노즐 플레이트(11)의 외표면(11a)에는, 불소가 첨가된 다이아몬드상 카본막으로 이루어지는 발액막(50)이 형성되어 있다.