PIGMENT DISPERSION, INKJET INK USING THE PIGMENT DISPERSION, METHOD FOR PREPARING THE PIGMENT DISPERSION AND IMAGE FORMING METHOD USING THE INKJET INK
    2.
    发明申请
    PIGMENT DISPERSION, INKJET INK USING THE PIGMENT DISPERSION, METHOD FOR PREPARING THE PIGMENT DISPERSION AND IMAGE FORMING METHOD USING THE INKJET INK 审中-公开
    颜料分散剂,使用颜料分散剂的喷墨墨水,使用喷墨墨水制备颜料分散体的方法和图像形成方法

    公开(公告)号:US20150152275A1

    公开(公告)日:2015-06-04

    申请号:US14619297

    申请日:2015-02-11

    IPC分类号: C09D11/326 C09D11/322

    摘要: A method for preparing a pigment dispersion including subjecting a mixture including at least a pigment, a dispersant and water to a first dispersion treatment using a media mill to prepare a first dispersion; and then subjecting the first dispersion to a second dispersion treatment using a media-less mill to prepare the pigment dispersion, wherein the pigment in the pigment dispersion has an average particle diameter (D50) of from 20 to 130 nm for pigments except carbon black or from 70 to 180 for carbon black, and the standard deviation of the particle diameter of the pigment is less than the average particle diameter (D50) for pigments except carbon black or one half of the average particle diameter (D50) for carbon black. A pigment dispersion prepared by the method. An inkjet ink including the pigment dispersion and one member selected from water, water soluble organic solvents, and surfactants.

    摘要翻译: 一种制备颜料分散体的方法,包括使用至少颜料,分散剂和水的混合物进行第一分散处理,使用介质研磨机制备第一分散体; 然后使用无介质研磨机对第一分散体进行第二分散处理以制备颜料分散体,其中颜料分散体中的颜料对于除炭黑之外的颜料的平均粒径(D50)为20至130nm, 对于炭黑为70〜180,颜料的粒径的标准偏差小于碳黑以外的颜料的平均粒径(D50)或炭黑的平均粒径(D50)的一半。 通过该方法制备的颜料分散体。 包括颜料分散体和选自水,水溶性有机溶剂和表面活性剂中的一种的喷墨油墨。