INKJET RECORDING METHOD AND INKJET RECORDING DEVICE

• Main Authors: KIDA HIROAKI, FUKUMOTO HIROSHI
• Format: Patent
• Language: English; Japanese
• Published: 08.02.2018
• 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 an inkjet recording method excellent in curability, discharge stability and suppression of temperature increase in a recording device after continuous printing.SOLUTION: The inkjet recording method includes: a discharge step of discharging an ultraviolet ray-curable ink having a viscosity of 25 mPa s or less at 20°C and an average equivalent of polymerizable unsaturated double bond of 100 to 150, from a head toward a recording medium at a discharge temperature of 30 to 40°C; and a curing step of irradiating the ultraviolet ray-curable ink adhered to the recording medium with ultraviolet rays emitted from a light source to cure the ink.SELECTED DRAWING: Figure 1 【課題】硬化性、吐出安定性、及び連続印刷後の記録装置内における温度上昇の抑制のいずれにも優れたインクジェット記録方法を提供する。【解決手段】２０℃における粘度が２５ｍＰａ・ｓ以下であり、かつ、平均重合性不飽和二重結合当量が１００〜１５０である紫外線硬化型インクを、吐出温度が３０〜４０℃の状態で、ヘッドから被記録媒体に向けて吐出する吐出工程と、前記被記録媒体に付着した前記紫外線硬化型インクを、光源から紫外線を照射して硬化させる硬化工程と、を含む、インクジェット記録方法である。【選択図】図１