INK JET RECORDING DEVICE AND IMAGE FORMATION METHOD

• Main Authors: TAKAORI YASUKO, USUI MASATO
• Format: Patent
• Language: English; Japanese
• Published: 27.12.2018
• Subjects: ADHESIVES; ANIMAL AND VEGETABLE OILS, FATS, FATTY SUBSTANCES AND WAXES; CANDLES; CHEMICAL PAINT OR INK REMOVERS; CHEMISTRY; COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS; COLOUR PRINTING; CORRECTING FLUIDS; CORRECTION OF TYPOGRAPHICAL ERRORS; DETERGENT COMPOSITIONS; DETERGENTS; DYES; FATTY ACIDS THEREFROM; 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; RECOVERY OF GLYCEROL; RESIN SOAPS; SELECTIVE PRINTING MECHANISMS; SOAP OR SOAP-MAKING; STAMPS; TRANSPORTING; TYPEWRITERS; USE OF MATERIALS THEREFOR; USE OF SINGLE SUBSTANCES AS DETERGENTS; WOODSTAINS

To reduce the size of an ink jet recording device excellent in the discharge performance of ink.SOLUTION: An ink jet recording device 1 includes a nozzle head 4. The nozzle head 4 includes an ink nozzle 41 and a cleaning liquid nozzle 141. The ink nozzle 41 discharges the aqueous ink to the lower side Z2 in the vertical direction from the opening of the ink nozzle 41. The cleaning liquid nozzle 141 supplies the aqueous cleaning liquid to the second region R2 of the nozzle head 4 in the hemispherical shaped droplets. The aqueous ink and aqueous cleaning liquid respectively independently include polyol. The aqueous cleaning liquid further includes a nonionic surfactant. The nonionic surfactant includes an amine type surfactant. The viscosity of the aqueous ink is equal to or greater than 5.0 mPa s and equal to or less than 6.5 mPa s. The viscosity of the aqueous cleaning liquid is equal to or greater than 3.5 mPa s and equal to or less than 5.0 mPa s. The ratio of the viscosity is equal to or greater than 0.60 and equal to or less than 0.85.SELECTED DRAWING: Figure 2 【課題】インクの吐出性能に優れるインクジェット記録装置の小型化を図る。【解決手段】インクジェット記録装置１は、ノズルヘッド４を備える。ノズルヘッド４は、インク用ノズル４１と、洗浄液用ノズル１４１とを有する。インク用ノズル４１は、水性インクを、インク用ノズル４１の開口から鉛直方向下側Ｚ２へ吐出する。洗浄液用ノズル１４１は、水性洗浄液を、半球状の液滴の状態で、ノズルヘッド４の第２領域Ｒ２に供給する。水性インクと、水性洗浄液とは、各々独立に、ポリオール類を含有する。水性洗浄液は、さらに、非イオン性界面活性剤を含有し、非イオン性界面活性剤は、アミン型界面活性剤を含む。水性インクの粘度が、５．０ｍＰａ・ｓ以上６．５ｍＰａ・ｓ以下である。水性洗浄液の粘度が、３．５ｍＰａ・ｓ以上５．０ｍＰａ・ｓ以下である。粘度の比率が、０．６０以上０．８５以下である。【選択図】図２