A process for preparing nanoscale azo pigment particles includes providing an organic pigment precursor that contains at least one functional moiety, providing a sterically bulky stabilizer compound that contains at least one functional group, and carrying out a chemical reaction to form a pigment composition in a microreactor or micromixer, whereby the functional moiety found on the pigment precursor is incorporated within the pigment and non-covalently associated with the functional group of the stabilizer, so as to allow the formation of nanoscale-sized pigment particles and the production of such in a microreactor under laminar or turbulent flow conditions without clogging.
一种制备纳米级偶氮
颜料颗粒的工艺包括提供含有至少一个官能团的
有机颜料前体,提供含有至少一个官能团的立体笨重的稳定剂化合物,以及在微反应器或微混合器中进行
化学反应以形成
颜料组合物、其中,
颜料前体上的官能团被结合到
颜料中,并与稳定剂的官能团非共价地结合,从而形成纳米级尺寸的
颜料颗粒,并在层流或湍流条件下在微反应器中生产,而不会堵塞。