achreocythemia

The characteristics of the colorless function couplers were mentioned.

简述了在彩色显影中无色功能性成色剂的特点、结构类型和作用机理。

The technological development of main chemicals in NCR production is reviewed:color developing agent,lueco dye,micro-capsule,etc.

本文综述了无碳复写纸的主要化工原料 :显色剂、无色染料、微胶囊等的技术发展。