Fig. 10From: Improving the lightfastness and thermal stability of black urushi (oriental lacquer) by kraft lignin oleateFTIR spectra of the UR films before and after irradiation with visible light: a UR, b UR after irradiation for 168 h, c UR-KL-10, d UR-KL-10 after irradiation for 168 h, e UR-OL-10, f UR-OL-10 after irradiation for 168 hBack to article page