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

研何提高有机类热变色材料的光牢度即抗化性和光稳定性。

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

分子内和分子间氢键的提高颜料的耐久性、耐光性和耐气候牢度等。