INK COMPOSITION AND PRINTING METHOD

• Main Authors: KONDO ASAKO, SUZUKI YUJI
• Format: Patent
• Language: English; Japanese
• Published: 24.05.2018
• 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; LAUNDERING; 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; TEXTILES; TRANSPORTING; TREATMENT OF TEXTILES OR THE LIKE; TYPEWRITERS; USE OF MATERIALS THEREFOR; WOODSTAINS

PROBLEM TO BE SOLVED: To provide an ink composition for inkjet printing which has good re-dispersibility after drying and does not change physical properties of ink when stored for a long period of time, and to provide an inkjet printing method and a dyeing method using the ink composition.SOLUTION: An ink composition contains a pigment, water, a polymer D formed of at least two types of monomers selected from the group consisting of a monomer A, a monomer B and a monomer C represented by specific formulae, a styrene-butadiene resin, a water-soluble organic solvent and a nonionic surface active agent (excluding ink composition containing at least one coloring fine particle selected from coloring fine particle formed of resin containing dye, coloring fine particle formed of resin covered with dye and coloring fine particle where surface of resin containing dye further coated with resin).SELECTED DRAWING: None 【課題】乾燥後の再分散性が良好であり、さらに長期に保存した場合にもインクの物性が変化しない、インクジェット捺染用のインク組成物、並びにそのインク組成物を用いたインクジェット捺染方法及び染色方法を提供する。【解決手段】本発明のインク組成物は、顔料、水、特定の式で表されるモノマーＡ、モノマーＢ、及びモノマーＣよりなる群から選択される少なくとも２種類のモノマーからなるポリマーＤ、スチレン−ブタジエン樹脂、水溶性有機溶剤、及びノニオン界面活性剤を含有する（但し、染料を含有した樹脂からなる着色微粒子、染料を被覆した樹脂からなる着色微粒子、及び染料を含有した樹脂の表面を更に樹脂で被覆した着色微粒子から選ばれる少なくとも１種の着色微粒子を含有するインク組成物を除く。）。【選択図】なし