Abstract
The main objective of this work is to study the fatigue behavior of photochromic textiles under different UV irradiance times and develop a rapid testing method. When considering their possible applications, the fatigue resistance of photochromic materials has been considered. The photochromic woven fabric was prepared using the screen-printing method. Previous studies have demonstrated the sensitivity of photochromic pigments to UV radiation's intensity during the experiment. This work provides different thoughts in testing the fatigue resistance of spiro-indolines-based pigment applied on textile fabric. We found that color intensity performance and photodegradation of the photochromic pigment can be evaluated using a relatively small amount of necessary irradiation cycles and an advanced setup of time/intensity UV radiation exposure. Keywords: Color intensity, Fatigue resistance, Photochromic phenomena, UV irradiance time
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