IMAGE FORMING METHOD AND INK SET

• Main Authors: MAEDA MITSUNORI, ITO SHIMPEI, TAGA YASUHIRO, YUZUHARA KEISUKE
• 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; DYEING LEATHER, FURS, OR SOLID MACROMOLECULAR SUBSTANCES INANY FORM; DYEING OR PRINTING TEXTILES; DYES; FILLING PASTES; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR; i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; INKS; LAKES; LAUNDERING; LINING MACHINES; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; MORDANTS; NATURAL RESINS; ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES; PAINTS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; PERFORMING OPERATIONS; POLISHES; PRINTING; PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; SELECTIVE PRINTING MECHANISMS; STAMPS; TEXTILES; TRANSPORTING; TREATMENT OF TEXTILES OR THE LIKE; TYPEWRITERS; USE OF MATERIALS THEREFOR; WOODSTAINS

To provide an image forming method, which suppresses bleeding of a dye in a printed matter when an image is printed on a fabric by an inkjet system using dye ink, can improve water resistance of a printed matter and is applicable to a recording sheet.SOLUTION: An image forming method aims to form an image on a recording medium including a fabric and a recording sheet by use of ink, in which the ink comprises an anionic dye and water-soluble organic solvent. The method includes an image printing step of printing an image on a recording medium by discharging ink by an inkjet system. When the recording medium is a fabric, the method includes a treating agent imparting step of imparting a treating agent to the fabric and a drying step of drying the treating agent imparted to the fabric. In the treating agent imparting step, an amount of the treating agent imparted per an area of the fabric is 4.7 to 34 mg/cm. In the drying step, a weight of the treating agent imparted is reduced to 50% or less of an amount of the treating agent in the imparting step. The treating agent contains a cationic substance and water-soluble organic solvent.SELECTED DRAWING: None 【課題】染料インクを用いてインクジェット方式により布帛に画像を印刷する場合に、印刷物における染料の滲みを抑制し、且つ、印刷物の耐水性を向上可能であり、更に記録用紙への印刷にも適用可能な画像形成方法の提供。【解決手段】インクを用いて、布帛及び記録用紙を含む記録媒体に画像を形成する画像形成方法であって、インクは、アニオン性染料と水溶性有機溶剤とを含み、記録媒体にインクをインクジェット方式により吐出して画像を印刷する画像印刷工程を含み、記録媒体が布帛の場合、更に布帛に処理剤を付与する処理剤付与工程と付与した処理剤を乾燥させる乾燥工程とを含み、処理剤付与工程で、布帛の面積あたりの前記処理剤の付与量が４．７〜３４ｍｇ／ｃｍ２であり、乾燥工程にで付与した処理剤の重量を、付与時における前記処理剤の付与量の５０％以下まで減少させ、処理剤はカチオン性物質と水溶性有機溶剤とを含む、画像形成方法。【選択図】なし