发明名称 Pigment composition, method of producing water-based pigment dispersion, water-based ink for inkjet recording
摘要 The present invention provides a water-based pigment composition including a pigment; a dispersant; and water, the dispersant including: a repeating unit including an ionic group; at least one of a repeating unit represented by Formula (2) or a repeating unit represented by Formula (3); and a repeating unit represented by Formula (1), a content of the repeating unit represented by Formula (1) being 20% by mass or more but less than 50% by mass with respect to a total amount of repeating units represented by Formulae (1) to (3), which is excellent in stability over time with finely dispersed pigment(s): wherein, in Formulae (1) to (3), R 1 represents a hydrogen atom or a methyl group; R 2 represents a hydrogen atom or a substituent; L 1 represents a single bond or a divalent linkage group; and Ar represents a monovalent aromatic group.
申请公布号 EP2223972(A2) 申请公布日期 2010.09.01
申请号 EP20100000871 申请日期 2010.01.28
申请人 FUJIFILM CORPORATION 发明人 INUSHIMA, REIKO;HOSOKAWA, TAKAFUMI;YASUDA, KOJI;SHIBATA, NAOYA
分类号 C09B67/08;B41J2/01;B41M5/00;C09B67/20;C09B69/10;C09D11/00;C09D17/00 主分类号 C09B67/08
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