How to improve the light fastness of thermochromism materials was reported in this paper.

研究了如何提高有机类热变的光牢度即抗化和光稳定。

The existence of hydrogen bond within or between the molecules of pigment can enhance the perdurability, light fastness and weather resistance.

内和间氢键的存在可提高颜的耐久、耐光和耐气候牢度等。