PRINTING INK FOR INKJET, INKJET RECORDING DEVICE, AND INKJET RECORDING METHOD

• Main Authors: FUSHIMI HIROYUKI, UMEMURA KAZUHIKO
• Format: Patent
• Language: English; Japanese
• Published: 09.08.2018
• 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 printing ink for inkjet which has good discharge stability, can obtain high friction fastness and washing fastness in the obtained printed matter, and can prevent cracking when pulled.SOLUTION: Printing ink for inkjet contains water, a pigment, an organic solvent and polycarbonate urethane resin particles, where the organic solvent contains glycerin, a content of the glycerin is 30 mass% or more with respect to the total amount of the organic solvent and is 5 mass% or more with respect to the total amount of the printing ink for inkjet, and the polycarbonate urethane resin particles have a glass transition temperature of -25°C or higher and 5°C or lower, film elongation of 400% or more and 600% or less, a film strength of more than 50 Mpa, and a content of 8 mass% or more with respect to the total amount of the printing ink for inkjet.SELECTED DRAWING: None 【課題】吐出安定性が良好であり、得られる捺染物において高い摩擦堅牢性及び洗濯堅牢性を得ることができ、かつ引っ張り時にひび割れを防止することができるインクジェット用捺染インクの提供。【解決手段】水、顔料、有機溶剤、及びポリカーボネートウレタン樹脂粒子を含有するインクジェット用捺染インクであって、前記有機溶剤が、グリセリンを含み、前記グリセリンの含有量が、前記有機溶剤全量に対して３０質量％以上であり、かつ、前記インクジェット用捺染インク全量に対して５質量％以上であり、前記ポリカーボネートウレタン樹脂粒子が、ガラス転移温度が−２５℃以上５℃以下であり、皮膜伸度が４００％以上６００％以下であり、皮膜強度が５０ＭＰａより大きく、含有量が前記インクジェット用捺染インク全量に対して８質量％以上であるインクジェット用捺染インクである。【選択図】なし