New Method for Prediction of Photochromic Textiles Fatigue Behavior

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