申请人:Kabushiki Kaisha Ueno Seiyaku Oyo Kenkyujo
公开号:US06548703B1
公开(公告)日:2003-04-15
A toning agent for an azo pigment, an azo pigment with a modified tone, and process for preparing the same are provide. 2-hydroxynaphthalene-3,6-dicarboxylic acid or a derivative thereof is admixed with a primary coupler component for an azo pigment and the mixed coupler composition and an aromatic diazonium are coupled.
提供一种用于偶氮颜料的调色剂,具有改变色调的偶氮颜料以及其制备方法。将2-羟基萘二甲酸-3,6-二羧酸或其衍生物与偶氮颜料的主要偶联剂成分混合,然后将混合的偶联剂组成物与芳香族重氮化合物偶联。