INKJET RECORDING METHOD, AND INKJET RECORDING DEVICE

• Main Authors: NAKAGAWA KOHEI, AIKAWA YOSHIHIDE, SAITO HIDEYUKI, KAWABE MINAKO
• Format: Patent
• Language: English; Japanese
• Published: 16.05.2019
• 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

To provide an inkjet recording method which has a discharge port surface inclined to a gravity direction, and is excellent in color mixture recoverability even when discharging ink from a recording head having a plurality of discharge port arrays.SOLUTION: An inkjet recording method uses an inkjet recording device which includes: first ink and second ink containing a pigment; and a recording head 8 having a discharge port surface 8a formed with a first discharge port array I of discharging the first ink and a second discharge port array II of discharging the second ink, where the first discharge port array and the second discharge port array are arranged so as to be adjacent to each other sequentially from below in a gravity direction, and at least a part of the first discharge port array and the second discharge port array overlap each other. The inkjet recording method includes a recording step, where a true specific gravity of the pigment in the first ink is smaller than a true specific gravity of the pigment in the second ink.SELECTED DRAWING: Figure 1 【課題】吐出口面が重力方向に対して傾くとともに、複数の吐出口列を有する記録ヘッドからインクを吐出しても、混色回復性に優れるインクジェット記録方法を提供する。【解決手段】顔料を含有する第１インク及び第２インク；並びに、第１インクを吐出する第１吐出口列Ｉ及び第２インクを吐出する第２吐出口列ＩＩが形成された吐出口面８ａを有し、第１吐出口列及び第２吐出口列が重力方向において下から順に隣接して配置されるとともに、第１吐出口列Ｉ及び第２吐出口列ＩＩの少なくとも一部が重複した記録ヘッド８；を具備するインクジェット記録装置を使用するインクジェット記録方法であって、記録工程を有し、第１インク中の顔料の真比重が、第２インク中の顔料の真比重より小さい。【選択図】図１