INK AND INKJET RECORDING METHOD
To provide ink providing a printed matter which is excellent in wettability to a non-absorptive medium and dryness and has high glossiness, an inkjet recording method using the ink, and a recording medium colored by the ink.SOLUTION: Ink contains at least a water-insoluble coloring agent, a dispersi...
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Main Authors | , |
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Format | Patent |
Language | English Japanese |
Published |
20.08.2020
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Subjects | |
Online Access | Get full text |
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Summary: | To provide ink providing a printed matter which is excellent in wettability to a non-absorptive medium and dryness and has high glossiness, an inkjet recording method using the ink, and a recording medium colored by the ink.SOLUTION: Ink contains at least a water-insoluble coloring agent, a dispersion agent, three or more kinds of organic solvents and water, in which a water-octanol distribution coefficient of the organic solvent 1 that is one of the three or more kinds of organic solvents is -1.50 to 1.00, a water-octanol distribution coefficient of the organic solvent 2 that is one of the three or more kinds of organic solvents is 1.10 to 3.50, and two or more kinds of organic solvents selected form the above organic solvent 1 and one or more kinds of organic solvents selected from the above organic solvent 2 are contained.SELECTED DRAWING: None
【課題】非吸収性メディアに対する濡れ性、乾燥性に優れ、かつ高光沢な印刷物を提供するインク、該インクを用いるインクジェット記録方法、及び該インクにより着色された記録メディアの提供。【解決手段】少なくとも、水不溶性の着色剤、分散剤、3種類以上の有機溶剤、及び水を含有するインクであって、3種類以上の有機溶剤のうちの1つである、有機溶剤1の水−オクタノール分配係数が−1.50〜1.00であり、3種類以上の有機溶剤のうちの1つである、有機溶剤2の水−オクタノール分配係数が1.10〜3.50であり、上記の有機溶剤1から選択される2種類以上の有機溶剤と、上記の有機溶剤2から選択される1種類以上の有機溶剤と、を含有するインクにより、前記の課題を解決できた。【選択図】なし |
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Bibliography: | Application Number: JP20190017172 |