大分子染料是使染料与树脂单体相互作用,通过缩合或聚合反应变成有色染料单体或染料低聚物,它们再经自身聚合或与其他树脂单体共聚等,将染料链引入高分子链中形成着色的高分子化合物。例如,用含有两个羧基的染料分子与二元醇或二元胺进行缩合反应,以合成有色低缩聚物;用含有乙烯基的染料与乙烯 Macromolecular dye is the interaction of the dye and the resin monomer, through condensation or polymerization into a colored dye monomer or dye oligomers, which by their own polymerization or copolymerization with other resin monomers, the dye chain into the polymer The formation of colored chains in the polymer. For example, a dye molecule containing two carboxyl groups is subjected to a condensation reaction with a diol or a diamine to synthesize a colored low-shrink polymer;