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    • 11. 发明申请
    • Water-based inks for inkjet printers
    • 喷墨打印机的水性油墨
    • US20070004822A1
    • 2007-01-04
    • US10540129
    • 2004-10-18
    • Hitoshi InoueTomoya YamamotoYukiko TachibanaTakayuki OokawaJunko Morioka
    • Hitoshi InoueTomoya YamamotoYukiko TachibanaTakayuki OokawaJunko Morioka
    • C03C17/00
    • C09D11/30
    • A water-based ink for inkjet printers contains at least a water-insoluble colorant, a block copolymer of a polyvinyl ether structure comprising at least one kind of hydrophilic segments and at least one kind of hydrophobic segments, water and an alkali. Each of the hydrophilic segments contains acidic groups. A content of the alkali is such that, when an infrared absorption intensity ascribable to ionic groups to be formed upon addition of an excess amount of the alkali to the block copolymer is supposed to be 100%, an infrared absorption intensity ascribable to ionic groups formed by dissociation of the acidic groups contained in the block copolymer becomes at least 80%, with a proviso that the content does not exceed twice as much as a smallest amount of the alkali that an infrared absorption intensity ascribable to ionic groups to be formed from the block copolymer becomes 100%.
    • 用于喷墨打印机的水性油墨至少含有水不溶性着色剂,包含至少一种亲水链段和至少一种疏水性链段的聚乙烯醚结构的嵌段共聚物,水和碱。 每个亲水段包含酸性基团。 碱的含量如下所示,假设当向嵌段共聚物添加过量碱而形成的离子性基团的红外吸收强度为100%时,形成归属于离子性基团的红外吸收强度 通过嵌段共聚物中所含的酸性基团的解离变为至少80%,条件是该含量不超过由最低量的碱形成的离子基团形成的红外吸收强度的两倍 嵌段共聚物变为100%。