彩色显影的反应历程,经过人们不懈的努力,现在大体上已经搞清楚了。但是,对于彩色显影中的染料隐色体,虽然越来越多的人相信它的存在,却一直未能得到清楚的证明。很早以前人们就知道,在通过氧化缩合反应制取醌亚胺类染料(嗪类及唑类染料)时,总是先生成染料的隐色体,然后,经过 The reaction of color development process, through unremitting efforts, now largely clear. However, for the color leuco dye development, although more and more people believe its existence, it has not been clearly proved. It has been known long ago that during the production of quinone imine dyes (oxazine and azole dyes) by oxidative condensation reaction, the leuco body of the dye is always made first, and then