DEVICE FOR DISCHARGING LIQUID AND METHOD FOR DISCHARGING LIQUID

• Main Authors: FUKUOKA MASAYUKI, TOKUNO TOSHIRO, HAGIWARA HIRONORI, TOYAMA IKU, YOKOHAMA YUKI, OMORI MASAHIRO, NISHIMURA HIDEAKI, TAMAI TOMOHIRO, SAKAGUCHI YUMI
• Format: Patent
• Language: English; Japanese
• Published: 28.12.2017
• Subjects: ADHESIVES; CHEMICAL PAINT OR INK REMOVERS; CHEMISTRY; COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS; COLOUR PRINTING; CORRECTING FLUIDS; CORRECTION OF TYPOGRAPHICAL ERRORS; DYES; FILLING PASTES; i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; INKS; LINING MACHINES; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; PAINTS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; PERFORMING OPERATIONS; POLISHES; PRINTING; PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; SELECTIVE PRINTING MECHANISMS; STAMPS; TRANSPORTING; TYPEWRITERS; USE OF MATERIALS THEREFOR; WOODSTAINS

PROBLEM TO BE SOLVED: To provide a device for discharging a liquid which can stably discharge a liquid having excellent dryness and low surface tension.SOLUTION: A device for discharging a liquid has a nozzle 11 that discharges a liquid and a nozzle plate having a nozzle base material 20 and a liquid repellent film 40 on at least a liquid discharge surface side surface, where the liquid repellent film 40 is a film containing a fluorine resin containing a structure unit having a fluorine-containing hetero cyclic structure, the liquid repellent film 40 is provided on the inner wall surface of the nozzle 11, and a dynamic surface tension at a liquid of 25°C and surface life 15 msec by the maximum foaming pressure method is 25 mN/m or more and 32 mN/m or less.SELECTED DRAWING: Figure 2 【課題】乾燥性に優れた低表面張力の液体を安定に吐出できる液体を吐出する装置を提供する。【解決手段】液体を吐出するノズル１１を有し、少なくとも液体吐出面側表面に、ノズル基材２０と撥液膜４０とを有するノズル板を備えた液体を吐出する装置であって、撥液膜４０が、含フッ素ヘテロ環状構造を有する構造単位を含むフッ素樹脂を含有する膜であり、ノズル１１の内壁面にも撥液膜４０を有し、液体の２５℃、最大泡圧法による表面寿命１５ｍｓｅｃでの動的表面張力が、２５ｍＮ／ｍ以上３２ｍＮ／ｍ以下である液体を吐出する装置である。【選択図】図２