METHOD FOR MANUFACTURING AQUEOUS DISPERSION OF OXIDIZED CARBON BLACK, AND METHOD FOR MANUFACTURING AQUEOUS DISPERSION OF OXIDIZED CARBON BLACK FOR INKJET INK
    2.
    发明公开
    METHOD FOR MANUFACTURING AQUEOUS DISPERSION OF OXIDIZED CARBON BLACK, AND METHOD FOR MANUFACTURING AQUEOUS DISPERSION OF OXIDIZED CARBON BLACK FOR INKJET INK 审中-公开
    制造氧化炭黑水性分散体的方法以及制造用于喷墨油墨的氧化炭黑水性分散体的方法

    公开(公告)号:EP3252111A1

    公开(公告)日:2017-12-06

    申请号:EP16743192.3

    申请日:2016-01-20

    摘要: Provided is a method for easily producing an oxidized carbon black aqueous dispersion that can highly remove multivalent metal ions and exhibit excellent dispersion stability.
    A method for producing an oxidized carbon black aqueous dispersion by successively performing on an aqueous slurry of oxidized carbon black having one or more anionic functional groups on a surface thereof a neutralization step of mixing an alkali metal hydroxide and performing heating/neutralization in the presence of one or more selected from a water-soluble chelating agent and a salt thereof or after mixing an alkali metal hydroxide and performing heating/neutralization, mixing one or more selected from a water-soluble chelating agent and a salt thereof and a separation and removal step of separating and removing a multivalent metal ion chelate complex from a mixed solution obtained at the neutralization step using a separation membrane.

    摘要翻译: 本发明提供一种容易制造可高度除去多价金属离子且分散稳定性优异的氧化炭黑水性分散液的方法。 一种氧化炭黑水性分散液的制造方法,其特征在于,在表面具有一个以上的阴离子性官能团的氧化炭黑的水性浆液中,依次进行碱性金属氢氧化物混合,在碱存在下进行加热/中和的中和工序, 选自水溶性螯合剂及其盐中的一种或多种或混合碱金属氢氧化物并进行加热/中和后,混合选自水溶性螯合剂及其盐中的一种或多种和分离和去除步骤 使用分离膜从中和步骤中获得的混合溶液中分离并除去多价金属离子螯合物。