近年来,许多厂家都在设法用色彩更纯和耐光性更好的染料来取代由常规彩显而形成的甲亚胺染料和靛胺染料。其中多数仍然是在彩显的反应中利用曝了光的卤化银作为氧化剂来产生染料。一些著名的厂家对其中某些方法正在从事大量的研究,其中有些是极有前途的,估计在不久的将来就会有些新产品问世。 In recent years, many manufacturers are trying to replace the azomethine dyes and indamine dyes formed by the conventional color display with the more pure and lightfast dyes. Most of these still use the exposed silver halide as an oxidant in the color reaction to create the dye. Some well-known manufacturers are doing a lot of research on some of these methods. Some of them are very promising. It is estimated that some new products will come out in the near future.