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    • 2. 发明授权
    • Inkjet ink
    • 喷墨油墨
    • US08232329B2
    • 2012-07-31
    • US12461900
    • 2009-08-27
    • Hidenori OtsukaMasayuki FukaishiTakashi IshizukaKoji UenoYoshihiro SaitoTeruaki OkawaNaofumi Ezaki
    • Hidenori OtsukaMasayuki FukaishiTakashi IshizukaKoji UenoYoshihiro SaitoTeruaki OkawaNaofumi Ezaki
    • C09D11/10
    • C09D11/326Y10T428/24802
    • An inkjet ink that prevents paper deformation such as curling, and also exhibits favorable pigment dispersibility. The inkjet ink includes at least a pigment, water, a water-soluble organic solvent having an α value of not more than 65, and a dispersant, wherein the dispersant is a copolymer having a unit A represented by general formula (a) shown below and a unit B represented by general formula (b) shown below, and the mass ratio between the water-soluble organic solvent and the water satisfies (water-soluble organic solvent)/water=5/5 to 8/2. [In general formula (a), R1 represents a hydrogen atom or a lower alkyl group, and m represents an integer of 1 to 3.] [In general formula (b), R2 and R3 each represents a hydrogen atom or a lower alkyl group, wherein R2 and R3 may be the same or different, and n represents an integer of 1 to 250.]
    • 一种防止纸张变形如卷曲的喷墨油墨,并且还表现出有利的颜料分散性。 喷墨油墨至少包含颜料,水,α值不大于65的水溶性有机溶剂和分散剂,其中分散剂是具有如下所示的由通式(a)表示的单元A的共聚物 和下述通式(b)表示的单元B,水溶性有机溶剂与水的质量比满足(水溶性有机溶剂)/水= 5/5〜8/2。 [通式(a)中,R 1表示氢原子或低级烷基,m表示1〜3的整数。] [通式(b)中,R 2和R 3各自表示氢原子或低级烷基 基团,其中R2和R3可以相同或不同,n表示1〜250的整数。]