INK FOR INK-JET PRINTING AND METHOD OF INK-JET PRINTING

• Main Authors: NAKAGAWA SEI, KIKUCHI HIROAKI, HASHIMOTO KATSUMI, SHIMOMURA HIROSHI
• Format: Patent
• Language: English; Korean
• Published: 22.01.2016
• 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

본 발명의 용제 경화형 잉크젯용 잉크는, 분자량이 8000 이하, 17∼50의 수산기가(KOHmg/g), 유리 전이점(Tg)이 70℃ 이하인 폴리에스테르폴리올 및 폴리이소시아네이트가 휘발성 유기 용제에 용해 내지 분산되어 있는 것을 특징으로 한다. 이 잉크에 의하면, 저온 단시간에서의 가열에 의해, 각종 성형품의 표면에 번짐 없이 밀착된 잉크젯 인쇄상을 형성할 수 있다. A solvent type curable ink for ink-jet printing obtained by dissolving or dispersing, in a volatile organic solvent, polyesterpolyol having a molecular weight of not more than 8000, a hydroxyl value (KOH mg/g) of 17 to 50 and a glass transition point (Tg) of not higher than 70°C, and blocked polyisocyanate. The ink is capable of forming ink-jet-printed image on the surfaces of various kinds of formed articles without burring and maintaining close adhesion upon being heated at a low temperature for a short period of time.